Showing papers on "Spray tower published in 2018"
TL;DR: In this article, a rotating packed bed (RPB) was used for SO2 removal from the flue gas in ships or warships, and the experimental results showed that the SO2 concentration at the gas outlet of the RPB can meet the emission requirement and it has no obvious scale up effect.
Abstract: High efficiency and compact design of the desulfurization technology is necessary to meet the strict emission requirement of the marine environment. A rotating packed bed (RPB), having the high mass transfer efficiency and small size, is an excellent choice for SO2 removal from the flue gas in ships or warships. In this work, SO2 removal in a laboratory and a pilot RPB with sodium sulfite solution was investigated. Experimental results show that the SO2 concentration at the gas outlet of the RPB can meet the emission requirement and it has no obvious scale up effect. A correlation of the mass transfer coefficient (Kya) was proposed and the predicted Kya agrees with the experimental data with a deviation within ±12%. Compared with the spray tower, the RPB has a higher SO2 removal efficiency and a quarter volume, which displays a bright future for the offshore application of SO2 removal.
32 citations
TL;DR: In this paper, the authors developed a spray tower through optimization of the design and operating parameters for removal ammonia emissions from the air streams, and the results of this study demonstrated that caustic spray tower could be a very effective technology for removal of NH3 from air stream.
31 citations
TL;DR: In this paper, a flow pattern control (FPC) unit is introduced to improve the desulfurization performance of WFGD by adding a FPC unit in the spraying tower.
Abstract: This paper presents an enhancement method to improve the desulfurization performance of wet flue gas desulfurization (WFGD) by adding a flow pattern controlling (FPC) device in the spraying tower. The FPC device is characterized by a modular design and composed of FPC units that are fixed under the spraying layers of the desulfurization tower. Two kinds of FPC units, each with a different scale, are designed (i.e., unit A and unit B). The effects of the FPC unit and operational parameters on the desulfurization process are determined by experimentation. The experiments show that the FPC unit significantly improves the desulfurization performance compared to the common spraying column without an aperture plate. The flow regime significantly changes and large amounts of bubbles develop above the perforated plate in the FPC unit, which is beneficial to enhance gas–liquid mass transfer. The design style and structural parameters of the FPC unit both significantly influence the desulfurization performance. Acc...
26 citations
TL;DR: In this article, orthogonal experiments were performed in a proposed diameter-varying spray tower system to evaluate the importance of operating parameters and analyse the relationship between factors and the mass transfer evaluation indices (the CO2 removal rate and overall absorption rate).
25 citations
TL;DR: In this article, the authors presented the design and evaluation of a novel spray tower which called the reversibly used cooling tower with upward spraying and downward gas flow (RUCT-UD), which has no high-resistance drift eliminator and no restriction on the minimum droplet diameter, giving the potential to achieve better performance of heat and mass transfer and particle scavenging.
23 citations
TL;DR: In this paper, a new three-dimensional numerical model integrating the complex gas-liquid hydrodynamics and the chemistry of the NH3-CO2-H2O system has been proposed and developed.
17 citations
Patent•
12 Jun 2018
TL;DR: In this paper, a garbage incinerator comprises a primary combustion chamber for primary incineration of garbage, wherein a flue gas outlet of the primary combusting chamber is communicated with a secondary combustion inlet of the secondary combustion chamber through a first flue, and a top end outlet of a spray tower is connected with a purification system through a third flue.
Abstract: The utility model provides a waste incineration system. The garbage incinerator comprises a primary combustion chamber for primary incineration of garbage, wherein a flue gas outlet of the primary combustion chamber is communicated with a flue gas inlet of the secondary combustion chamber through a first flue, a flue gas outlet of the secondary combustion chamber is connected with a spray tower used for flue gas spray treatment through a second flue, and a top end outlet of the spray tower is connected with a flue gas purification system through a third flue. The garbage incineration temperature can be effectively controlled, combustible gas generated by incineration can be effectively utilized, meanwhile, the tail gas combustion temperature and the smoke cooling speed are controlled to decompose dioxin and prevent dioxin from being synthesized again, and therefore the emission standard requirement after garbage treatment is met. The method is high in intelligent degree, advanced, highin working efficiency, safe, reliable, energy-saving and environment-friendly.
15 citations
TL;DR: In this paper, a computational fluid dynamics (CFD) model was developed and tested against experiments made in a semi-scale test rig and in a full-scale spray tower used for wet flue gas desulphurization (WFGD) in one operating coal fired power plant.
13 citations
Patent•
30 Mar 2018
TL;DR: In this article, a spray tower with an automatic cleaning function based on the internet of things is proposed, which includes a main tower body, a sedimentation pool, an air inlet, air outlet, afilling layer, a spraying layer and a demisting layer and further comprises a cleaning mechanism and a decontamination mechanism.
Abstract: The invention relates to a spray tower with an automatic cleaning function based on the internet of things. The tower comprises a main tower body, a sedimentation pool, an air inlet, an air outlet, afilling layer, a spraying layer and a demisting layer and further comprises a cleaning mechanism and a decontamination mechanism. The cleaning mechanism comprises a vibration component and a washing component, and the decontamination mechanism comprises a mobile component and a stirring component. According to the spray tower with the automatic cleaning function based on the internet of things, solid particulate matter and remaining liquid drops in the demisting layer can be shaken off through the cleaning mechanism, the situation can be avoided that contaminants on a baffle in the demisting layer block the demisting layer, the contaminants on the baffle in the demisting layer are flushed away by the water flow, and the cleaning effect is improved; sediment in the sedimentation pool can bestirred through the decontamination mechanism and can be sufficiently mixed with pool water, so that the sediment is driven to be discharged, the decontamination effect is achieved, and compared witha manual cleaning mode, the spray tower is convenient and efficient in cleaning, the working intensity of people is greatly lowered, and the practicability of the spray tower is improved.
9 citations
TL;DR: In this paper, a multinozzle spray tower for CO2 capture with uniform size and spatial distribution of droplets has been proposed, achieving a high capture efficiency of 95% in the presence of much bigger droplets.
Abstract: Conventional spray towers emit absorbent droplets that are nonuniform in size and spatial distribution; as a result, capture efficiency is degraded. This paper presents the design and evaluation of a novel spray tower for capturing CO2 with much increased capture efficiency. The tower uses a multinozzle plate, and can spray sorbent drops of almost the same size vertically and quite uniformly across the flow cross section. Uniform size and spatial distribution of droplets greatly increased the capture efficiency η, although much bigger drops were used, achieving η ∼ 95%, which has rarely been reported to date for CO2 capture by a spray tower. Experimental results were compared with the predictions by numerical simulations in excellent agreement. The new spray tower has a number of strong points that are favorable for scaling up of diameter and length.
7 citations
Patent•
09 Jan 2018
TL;DR: In this paper, a spray tower heat exchange structure with three incorporated towers is proposed for exhaust air heat recovery and boiler heating, which is divided into an air heating and humidification region, a smoke high-temperature heat exchange region and a smoke low-temperatures exchange region from bottom to top.
Abstract: The invention discloses a boiler smoke discharging condensed water heat-carrying circulation based three incorporated tower heat exchange method and device and belongs to the technical field of exhaust air heat recovery and boiler heating. By adopting a spray tower heat exchange structure with three incorporated towers, the device is divided into an air heating and humidification region, a smoke high-temperature heat exchange region and a smoke low-temperature heat exchange region from bottom to top. Smoke enters the high-temperature heat exchange region from the middle part of the tower, performs heat exchange with high-temperature waste heat circulation water, then rises to the low-temperature heat exchange region and is exhausted from the tower top after performing heat exchange with low-temperature waste heat circulation water; the low-temperature waste heat circulation water is sprayed from a low-temperature spraying device for heat exchange, is supplied to an air heating and humidification section for spraying heat exchange after passing through a water-air separator and heats inlet air of a boiler or directly descends to the high-temperature heat exchange region; and the high-temperature waste heat circulation water is sent into the high-temperature heat exchange region from a high-temperature spraying device for heat exchange and is supplied outside and heats heating net water after gathering in a pool at the tower bottom. A set of system can realize a main heat exchange process required for smoke recovery and heating, so that the system flow is greatly improved, the equipment amount and the occupying space are reduced, and investment and energy consumption are lowered.
Patent•
23 Feb 2018
TL;DR: In this article, a spray tower with an observation window self-cleaning function is described, where the observation window is sealed to set up on spray tower body side wall surface, the internal light is provided with of spray tower, vertical elevator motor slides and sets up on horizontal slide rail, and is connected with outer metal slip.
Abstract: The utility model discloses a spray tower with observation window self - cleaning function, including spray tower body, observation window, horizontal slide rail, vertical elevator motor, vertical lifter, horizontal telescopic link, transversely flexible motor, outer metal slip, window cleaner and pendulum rod. The observation window is sealed to set up on spray tower body side wall surface this internal light that still is provided with of spray tower, vertical elevator motor slides and sets up on horizontal slide rail, and is connected with outer metal slip, horizontal telescopic link can beperiodic flexible, window cleaner sets up the inboard wall at the observation window to adsorb mutually with outer metal slip, the pendulum rod top is articulated mutually with window cleaner. The utility model discloses can not change current spraying tower body structure, do not influence the prerequisite of spray tower gas tightness under, it has had the observation window conveniently to observe spray lance, nozzle angle and spraying effect to make, it is clear that the effect is observed to the observation window, the difficult pollution.
Patent•
14 Dec 2018
TL;DR: In this paper, an exhaust gas treatment method and system capable of treating exhaust gas generated during painting is presented, which is based on an original adsorption recovery system, a secondary spray tower and UV plasma photolysis equipment.
Abstract: The invention discloses an exhaust gas treatment method and system capable of treating exhaust gas generated during painting. Aiming at the primer, the treatment process based on an original adsorption recovery system, a secondary spray tower and UV plasma photolysis equipment is adopted. Aiming at the intermediate paint and the outer paint, the treatment process based on an original adsorption recovery system and UV plasma photolysis equipment is adopted. Aiming at black paint, the water spray treatment process is adopted. The total exhaust gas treatment capacity is 420000-650000 m /h, andthe removal effect is 50%-75%.
Patent•
29 Jun 2018
TL;DR: In this paper, a tail gas photo-oxygen pyrolysis purification method was proposed to solve the problem of secondary pollution caused by traditional wet processing, and achieved ultra-clean discharge.
Abstract: The invention discloses a tail gas photo-oxygen pyrolysis purifying method which comprises the following steps: 1) enabling an organic exhaust gas from a factory to enter a front-end spray tower, andfixing powder particulate matters in the organic exhaust gas in the spray liquid; 2) feeding the organic exhaust gas, after preliminary dust removal, into a photo-oxygen pyrolysis cabinet through an air pipe, for exhaust gas oxidation treatment; 3) during the treatment of the step 2), detecting, by an exhaust gas concentration detection sensor mounted at an entrance of the photo-oxygen pyrolysis cabinet, the exhaust gas concentration in real time, and feeding a signal back to a single chip control system, to control regular combination on/off of lamps in a high-energy ultraviolet lamp bank module and an ozone supply module; 4) feeding the treated gas, under the effect of an induced draft fan, into a dry flue gas comprehensive treatment tank to realize fixation of sulfur and nitrogen oxide,while feeding the gas below the discharge standard of the system into front-end cycle. The method disclosed by the invention can realize energy-saving and efficient operation of the whole system, prolongs the service life of the lamp bank module, improves the treatment effect of the organic exhaust gas, avoids the problem of secondary pollution caused by traditional wet processing, and realizes ultra-clean discharge.
01 Feb 2018
TL;DR: In this paper, the authors investigated the effectiveness of this desulfurization process and the factors influencing it under laboratory conditions, with a diesel engine exhaust used to represent ship exhaust.
Abstract: This desulfurization process involves removing sulfur oxides with seawater or alkaline aqueous solutions and then treating the effluent by aeration and pH adjustment before discharging it into the ocean. In the desulfurization system, the spray tower is the key equipment and the venturi tubes are the pretreatment device. The two stages of plates are designed to fully absorb sulfur oxides in exhaust gases. The spiral nozzles atomize and evenly spray the desulfurizers into the tower. This study experimentally investigated the effectiveness of this desulfurization process and the factors influencing it under laboratory conditions, with a diesel engine exhaust used to represent ship exhaust. The experimental results show that this process can effectively absorb the SO2 in the exhaust. When the exhaust flow rate was 25 m3/h and the desulfurizer flow rate was 4 L/min, the sulfur removal efficiency (SRE) reached 99.7%. The flow rate, alkalinity, and temperature of seawater were found to have significant effects on the SRE. Adjusting seawater flow rate (SWR) and alkalinity within certain ranges can substantially improve the SRE.
Patent•
20 Nov 2018
TL;DR: In this article, a wall-flow preventing spray tower is proposed, which consists of a tower body, a driving chamber, a water tank, water pump, water suction pipe, an air intake pipe and an air exhaust pipe; a spray mechanism comprises a mixing component, a vibrating component and a plurality of first spray heads.
Abstract: The invention relates to a wall-flow preventing spray tower which comprises a tower body, a driving chamber, a water tank, a water pump, a water suction pipe, an air intake pipe and an air exhaust pipe; a spray mechanism comprises a mixing component, a vibrating component and a plurality of first spray heads; the mixing component comprises a first bevel wheel, a second bevel wheel, a rotation shaft, a support unit, a first mesh plate, a second mesh plate and two mixing plates; a wall-flow preventing mechanism comprises a circular ring and a plurality of water spray components; and each water spray component comprises a first gear, a second gear, a second spray head, a connecting pipe, a concentric shaft, a power component and two connecting components. The wall-flow preventing spray towerhas the advantages that the spray mechanism drives the mixing plate to rotate, and a vibrating plate is enabled to knock the lower side of the second mesh plate, therefore, a filler between the firstmesh plate and the second mesh plate is enabled to be evenly distributed for being convenient in full absorption of acidic materials in exhaust gas; furthermore, an alkali liquid flowing downward is evenly sprayed onto the lower part inside the tower body through the wall-flow preventing mechanism and is convenient to be in sufficient contact with the exhaust gas for reacting, thereby improving the practicability of equipment.
Patent•
15 May 2018
TL;DR: In this article, a gas desulfurization spray tower consisting of a vertical tower body, a vertical pipeline, a regulating screw, spray pipes, a gas inlet pipe,a gas outlet pipe and a liquid outlet pipe is characterized.
Abstract: The invention discloses a gas desulfurization spray tower. The gas desulfurization spray tower comprises a vertical tower body, a vertical pipeline, a regulating screw, spray pipes, a gas inlet pipe,a gas outlet pipe, a liquid inlet pipe and a liquid outlet pipe and is characterized in that the vertical pipeline is inserted into the vertical tower body; the liquid inlet pipe is mounted on the wall of the upper end of the vertical pipeline in a communicated manner; the regulating screw is inserted into the vertical pipeline, and a piston is mounted at the lower end of the regulating screw; theregulating screw is screwed to the end plate of the upper end of the vertical pipeline in a threaded manner; a handle rod is vertically arranged at the upper end of the regulating screw; the spray pipes are horizontally arranged on the vertical pipeline in a communicated manner, and the spray layers are located at different heights in the vertical tower body; nozzles are arranged on each spray pipe at intervals; a circular fence is mounted at the bottom in the vertical tower body; fan blades are mounted in the circular fence; the gas inlet pipe is inserted into the circular fence. The gas desulfurization spray tower has the advantages that the height of the piston can be regulated according to field gas input so as to control the starting quantity of the spray pipes, and sufficient spraydesulfurization is benefited.
Patent•
27 Mar 2018
TL;DR: In this article, a spraying apparatus for producing essence for food, the on-line screen storage device comprises a base, be equipped with material liquid tank on the base, the symmetry is equipped with four first support frames, four first base support frames upper end equipped with the spray tower jointly, and two L type mounting brackets, two in spray tower the one end that the spraying tower was kept away from to l type mounting bracket is equip with the centrifugal atomizer jointly, be connected through the spray tube between centrifugalatomizer and the material liquid tanks, the discharging
Abstract: The utility model discloses a spraying apparatus for producing essence for food, the on -line screen storage device comprises a base, be equipped with material liquid tank on the base, the symmetry isequipped with four first support frames on the base, four first support frame upper end is equipped with the spray tower jointly, the symmetry is equipped with two L type mounting brackets, two in the spray tower the one end that the spray tower was kept away from to L type mounting bracket is equipped with the centrifugal atomizer jointly, be connected through the spray tube between centrifugalatomizer and the material liquid tank, the discharging pipe has been seted up to the spray tower lower extreme, be equipped with the hair -dryer on the base, be equipped with the air -supply line on the hair -dryer and go out the tuber pipe, the cover is equipped with the blowing pipe on going out the tuber pipe, the symmetry is equipped with two shower nozzles of blowing on the blowing pipe, be equipped with heating device on the blowing pipe. The utility model discloses the structure is ingenious, and it is convenient to use, can be more complete to the drying of feed liquid, and evaporationof water speed is very fast, has improved the conversion rate greatly, has practiced thrift the cost, is worth promoting.
04 Oct 2018
TL;DR: In this article, an experimental evaluation of the removal efficiency of SO2 in a spray tower is presented, and the results showed the influence of the gas velocity and L/G ratio in removal efficiency.
Abstract: This work presents an experimental evaluation of the removal efficiency of SO2 in a spray tower. The experiments were carried out in different conditions, varying gas velocity and using different sprays nozzles. The influence of the height of tower on the removal efficiency was evaluated through experiments inside spray tower. In this study was used two sets of five nozzles, with diameter of orifice of 2.4 and 3.2 mm, and only one nozzle with diameter of orifice of 5.6 mm. The results showed the influence of the gas velocity and L/G ratio in the removal efficiency, the influence of the gas velocity on the volumetric gas side mass transfer coefficient and the influence of the height of the tower in the removal efficiency.
Patent•
09 Jan 2018
TL;DR: In this paper, a ship desulfurization and denitrification integrated process is described, which is simple in technological process and operation, small-in land occupation, low in cost and energy consumption and high in desulurization efficiency.
Abstract: The invention discloses a ship desulfurization and denitrification integrated process. A whole system mainly comprises a desulfurizing absorption tower 10, a denitrification drying and oxidation tower20, a denitrification spray tower 30 and a drying liquid regeneration tower 40. The ship desulfurization and denitrification integrated process is simple in technological process and operation, smallin land occupation, low in cost and energy consumption and high in desulfurization and denitrification efficiency; the concentration of SO2 in the discharged clean flue gas is not higher than 30mg/m , and the concentration of NOX in the discharged clean flue gas is not higher than 50mg/m , so that the discharged clean flue gas meets the national standards; therefore, the ship desulfurizationand denitrification integrated process can be widely applied to desulfurization and denitrification of flue gas of ships.
Patent•
17 Jul 2018
TL;DR: In this paper, a modular desulphurization and dust removal spray tower is described, which consists of a box body, a dust filtering box and an air outlet pipe, the partition plate divides the inner cavity of the box body into a spray cavity and a medicine cavity.
Abstract: The invention discloses a modular desulphurization and dust removal spray tower. The spray tower comprises a box body, a dust filtering box and an air outlet pipe, the upper portion of an inner cavityof the box body is provided with a partition plate, the partition plate divides the inner cavity of the box body into a spray cavity and a medicine cavity, the top wall of an inner cavity of the spray cavity is provided with a spay device, the bottom end of the spay cavity is in through connection with a discharge pipe, the bottom end of the left side end of the box body is provided with the dustfiltering box, the bottom end of the left side end of the dust filtering box is in through connection with an air inlet pipe, the bottom wall of an inner cavity of the dust filtering box is providedwith a dust discharge hole, the inner cavity of the dust filtering box is provided with a first dust filtering screen and a second dust filtering screen, the right side end of the spray cavity is in through connection with the air outlet pipe, an air inlet end of the air outlet pipe is sleeved with a water filtering device, and the bottom end of the box body is evenly provided with a plurality ofsupporting legs; according to the modular desulphurization and dust removal spray tower, floating dust in the exhaust gas is filtered through the dust filtering box, hydrogen sulfide in the exhaust gas is removed through the spray cavity, the purification mode can reduce the instability of centralized purification, can greatly improve the purification quality, and thereby minimizing the impact ofgas on the environment; the air outlet pipe is arranged to ensure the dryness of exhausted gas.
Patent•
18 Dec 2018
TL;DR: In this article, the authors disclosed a limestone powder desulfurization and dedusting process, which consists of primary dust removal on flue gas, secondary dust removal, and limestone powder de-sulphurization.
Abstract: The invention discloses a limestone powder desulfurization and dedusting process. The process comprises the following steps: primary dust removal on flue gas; flue gas desulfurization, and secondary dust removal; limestone powder desulfurization; settling cycle; and flue gas emission. At the same time, a limestone powder desulfurization and dedusting device is disclosed, the limestone powder desulfurization and dedusting device comprises a smoke inlet, a smoke inlet is connected to a dedusting box, the dedusting box is connected to a heat exchange chamber, the heat exchange chamber is connected to a spray tower, a nozzle is arranged in the spray tower, the nozzle is connected to a water tank through a water pipe, an ash bucket is arranged in the spray tower, a reaction tank is arranged atthe bottom of the spray tower, the reaction tank is connected to a sedimentation tank, the sedimentation tank is connected to the water tank through a filter net, a smoke outlet is arranged at the spray tower, a smoke outlet is connected to the heat exchange chamber, and a smoke exhaust outlet is arranged at the heat exchange chamber. The limestone powder desulfurization and dedusting process hassimple process, high efficiency, low cost, and high resource utilization rate, through the use of high temperature in the flue gas by the heat exchange chamber, the circulation of a reaction water supernatant by a circulating pipe is realized, and the resource utilization is increased, desulfurization is carried out by limestone powder, the flue gas reacts thoroughly in the spray tower, and the desulfurization efficiency is high.
Patent•
20 Apr 2018
TL;DR: In this article, a multi-stage drying method and device for high-activity potassium fluoride was proposed, which mainly consisted of a coal hot air furnace, a spray tower, a cyclone dryer, a bag dust remover and the like.
Abstract: The invention discloses a multi-stage drying method and device for high-activity potassium fluoride. The drying device mainly comprises a coal hot air furnace, a spray tower, a cyclone dryer, a bag dust remover and the like. Through the drying method combining spray drying with cyclone drying, high-activity potassium fluoride is firstly prepared through a spray drying method, most of water of materials is removed, the materials are separated from waste gas after being dehydrated to certain water content, and the cyclone dryer which adopts fresh hot air with a relatively low temperature is adopted to further dry the materials to reach required water content. According to the multi-stage drying method and device disclosed by the invention, spray drying and cyclone drying are combined for use, so that heat and power energy consumption can be greatly reduced; and moreover, the equipment size is small, a needed site is small, the cost is remarkably reduced, the material drying effect is better and the yield is higher.
Patent•
22 Jun 2018
TL;DR: In this paper, a deep purification device consisting of a biological liquid culture pool, a biological spray tower, an activated carbon adsorption tank and an activated CO 2 generator was proposed for control of poisonous and harmful contaminated gas.
Abstract: The invention discloses a deep purification device for control of poisonous and harmful contaminated gas The deep purification device comprises a biological absorption liquid culture pool, a biological spray tower, an activated carbon adsorption tank and an activated carbon generation liquid culture pool, wherein the biological absorption liquid culture pool and the activated carbon generation liquid culture pool both contain multiple microorganisms for degrading poisonous and harmful organic waste gas; the biological absorption liquid culture pool is communicated with a first spray pipe through a first liquid inlet pipe; the bottom of a tower body is communicated with the biological absorption liquid culture pool through a first return pipe; an exhaust port is formed in the top of the tower body and communicated with the bottom of the side wall of the activated carbon adsorption tank through a first exhaust pipe; the activated carbon generation liquid culture pool is communicated with a second spray pipe through a second liquid inlet pipe; the bottom of the activated carbon adsorption tank is communicated with the activated carbon generation liquid culture pool through a second return pipe The device can realize deep purification of the poisonous and harmful organic waste gas and has the characteristics of low cost, low wastewater output and good treatment effect
Patent•
24 Aug 2018
TL;DR: In this article, an internet-of-things-based spray tower with a good purification effect was proposed. But the authors only focused on an intercepting mechanism, a charging mechanism and a center control mechanism.
Abstract: The invention relates to an internet-of-things-based spray tower with a good purification effect. The internet-of-things-based spray tower comprises a tower body, a packing layer, a second pipeline, awater tank, a water pump and at two nozzles and also comprises an intercepting mechanism, a charging mechanism and a center control mechanism; the intercepting mechanism comprises a first fixing rod,a first driving assembly, a second connecting rod, a sleeve, a first spring, two scraping plates, two first connecting blocks and two telescopic assemblies; and the charging mechanism comprises a charging bucket, a shell, a piston, a second driving assembly, two first pipelines, two water passage holes and two non-return assemblies. Due to the adoption of the intercepting mechanism in the internet-of-things-based spray tower with the good purification effect, an alkaline solution flowing down along the inner wall of the tower body is made to splash towards the center of the tower body, so that the efficiency of neutralizing acidic gases in waste gases by using spray water is increased, and the purification effect of the spray tower is improved; and due to the adoption of the charging mechanism, the pH value of the spray water in the second pipeline can be regulated, and the purification effect of the spray tower is further improved.
Patent•
29 Jun 2018
TL;DR: In this paper, a vertical desulphurizing and dedusting spray tower including a tower body is described, where a partition board is arranged on the upper part of an inner cavity of the tower body, and a connecting hole is arranged at the center of the top end of the partition board.
Abstract: The invention discloses a vertical desulphurizing and dedusting spray tower including a tower body. A partition board is arranged on the upper part of an inner cavity of the tower body; a connecting hole is arranged at the center of the top end of the partition board; the inner cavity of the tower body is separated into a spray cavity and a filter cavity by the partition board; the filter cavity is internally provided with a water filter layer and an activated carbon layer; a spray device is arranged on the top wall of an inner cavity of the spray cavity, the bottom wall of the spray cavity isprovided with a blow-down hole, and the bottom end of the blow-down hole is connected to a blow-down pipe; the bottom end of the tower body is provided with a plurality of support legs evenly, a support plate is arranged among all the support legs, and the top end of the support plate is provided with a filter cartridge; by arrangement of the spray cavity, hydrogen sulfide poisonous gas in exhaust gas is neutralized and dissolved, pollutants in the exhaust gas are reduced, and the exhaust gas after purification enters the filter cavity through the connecting hole; through the filter layer andthe activated carbon layer, gas after purification enters the water filter layer, water in the gas is removed, and toxic substances are prevented from entering air along with water vapor; the exhaustgas is further purified by the activated carbon layer, so the exhaust gas is guaranteed to be thoroughly purified and the influence of the exhaust gas on the environment is reduced.
Patent•
29 Jun 2018
TL;DR: In this article, a wet desulfurization spray tower and a desulfure method are described, which includes the following steps: (1) spraying clear water to a demister by a water replenishing spray layer arranged at the top part of the wet spray tower, and cleaning the demister; (2) enabling liquid drops removed from the demisters and water after cleaning the water after removing them to flow into a slot type liquid mixer of a slot-type liquid distributor under a flow diversion action of a demisted water collector and to be mixed with a higher-
Abstract: The invention discloses a wet desulfurization spray tower and a desulfurization method. The desulfurization method comprises the following steps: (1) introducing flue gas to the wet desulfurization spray tower for desulfurizing, spraying clear water to a demister by a water replenishing spray layer arranged at the top part of the wet desulfurization spray tower, and cleaning the demister; (2) enabling liquid drops removed from the demister and water after cleaning the demister to flow into a slot type liquid mixer of a slot type liquid distributor under a flow diversion action of a demisted water collector and to be mixed with a higher-concentration alkaline solution from an alkaline solution spray pipe, and reacting; (3) enabling a primarily diluted alkaline solution in the slot type liquid mixer to overflow into an alkaline solution tank through tank bodies arranged at two sides of the top part of the slot type liquid mixer, uniformly distributing the alkaline solution on cross section of a tower body through the slot type liquid distributor, enabling the alkaline solution to fall on a filler layer under the slot type liquid distributor, forming an alkaline solution membrane on the filler layer, and desulfurizing the flue gas.
Patent•
15 Jun 2018
TL;DR: In this article, a device and a method for the stage carbonization treatment of a high-salt and high-COD industrial waste liquid is presented, which comprises a drying and pre-carbonizing system, a carbonization furnace, a secondary combustion chamber, a waste heat recovery system and a carbonisation tail gas treatment system.
Abstract: The invention relates to a device and a method for the stage carbonization treatment of a high-salt and high-COD industrial waste liquid. The device comprises a drying and pre-carbonizing system, a carbonization furnace, a secondary combustion chamber, a waste heat recovery system and a carbonization tail gas treatment system; and the drying and pre-carbonizing system comprises a spray tower, a feed liquid atomizer and a trap, the trap is respectively connected with the spray tower and the carbonization tail gas treatment system, the carbonization furnace is respectively connected with the spray tower and the trap, and the carbonization furnace, the secondary combustion chamber and the waste heat recovery system are sequentially connected with the carbonization tail gas treatment system. The treatment method comprises the following steps: the industrial waste liquid is atomized, and undergoes drying and decomposition pre-carbonizing, a collected powdery solid salt undergoes secondary carbonization through the carbonization furnace, the obtained product salt is discharged, and carbonization tail gas is treated through the secondary combustion chamber and the waste heat recovery system in order to resource reuse and harmless discharge. The device and method adopt stage carbonization of the waste liquid, and a corresponding furnace type is adopted according to the self characteristics of the waste liquid, so device sticking is avoided, the formed product salt meets industrial requirements, and harmless treatment of the tail gas is achieved.
Patent•
29 Jun 2018
TL;DR: In this article, an anti-wall-flow energy-saving type spray tower with low construction cost and sufficient reaction was proposed, where the position of filler is changed by the mixing mechanism, so that a liquid on the filler is subjected to sufficient reaction with waste gas.
Abstract: The invention relates to an anti-wall-flow energy-saving type spray tower with low construction cost and sufficient reaction. The spray tower comprises a gas inlet pipe, a gas outlet pipe, a tower body, a water storage box, a water pump and a first water pipe, wherein a mixing mechanism and at least two flow guiding mechanisms are arranged in the tower body; the mixing mechanism comprises a mixingchamber, a first motor, a first drive shaft, a drive wheel, a driven wheel, a chain, a driven shaft, a first screen, a second screen and two mixing plates; each flow guiding mechanism comprises a drive chamber, a drive rod, a sliding ring, a sliding rail, a hinge assembly and a flow guiding plate. According to the anti-wall-flow energy-saving type spray tower with low construction cost and sufficient reaction, the position of filler is changed by the mixing mechanism, so that a liquid on the filler is subjected to sufficient reaction with waste gas, moreover, a solution on the inner wall of the tower body is guided to the center of the tower body by the flow guiding mechanisms, influence caused by wall flow is reduced, construction cost of equipment is saved by reducing height of the tower body, besides, energy consumption of the water pump is reduced, and practicability of equipment is substantially improved.
Patent•
06 Jul 2018
TL;DR: In this paper, a closed cultivation farm with a vertical spray tower and a cylindrical barrel structure is described, where the tower can spray mist automatically in the running process without the need that workers enter the closed cultivation area, and chemical mist can be diffused to the whole cultivation area quickly by means of the tower type spraying structure.
Abstract: The invention discloses a centrifugal disinfection tower for a closed cultivation farm. The centrifugal disinfection tower for the closed cultivation farm comprises a vertical spray tower; the vertical spray tower comprises a tower body base and a tower body, and the tower body is supported on the tower body base; the tower body base is of a horizontal disc-shaped supporting structure; the tower body is of a cavity rotor structure coaxial with the tower body base; the tower body comprises an upper tower main body and a lower tower main body from top to bottom, the lower tower main body is of acylindrical barrel structure, and a rotation motor is coaxially arranged at the bottom of the barrel portion of the lower tower main body; and fan blades are further coaxially arranged in the lower tower main body and located above the rotation motor, and the rotation motor and the fan blades are connected in a driving mode through a first transmission shaft. The centrifugal disinfection tower for the closed cultivation farm is simple in structure, the tower can spray mist automatically in the running process without the need that workers enter the closed cultivation area, and chemical mist can be diffused to the whole cultivation area quickly by means of the tower-type spraying structure.