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Spray tower

About: Spray tower is a research topic. Over the lifetime, 1028 publications have been published within this topic receiving 4715 citations.


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Journal Article
TL;DR: In this article, the effect of the number of nozzles mounted on the spray tower from 1 to 3 increased the removal efficiency, while increasing the scrubbing liquid pressure increased removal efficiency of ammonia gas by spray tower.
Abstract: Background and aims: Spray tower is a cost effective and simple equipment for ammonia gas purification. However, its’ appropriate performance in the removal of ammonia gas is under question. In this study, the effect of nozzle number, concentration of input ammonia gas and scrubbing liquid pressure over the removal efficiency of spray tower was studied. Methods: In present study, a spray tower was used to remove ammonia from air at room temperature and barometric pressure of Tehran. Ammonia gas at average concentration of 24.1, 52 and 68 parts per million was injected into the tower. Water was applied at a volumetric flow rate of 5 liters per minute and at 9, 10 and 12 bar head as the scrubbing liquid. The air flow rate in 3737.8 liters per minute was adjusted by a variable speed fan. Scrubbing liquid was sprayed using 1, 2 and 3 nozzle settings with a 20 μm size. The collected data were analyzed using the SPSS software. Results: The highest removal efficiency of 88.38% and the lowest removal efficiency of 51.47% were obtained. Increasing the number of nozzles did not increase the removal efficiency significantly (p= 0.06). Conclusion: Removal efficiency of spray tower decreased by increasing the input ammonia gas concentration. Increasing the number of nozzles mounted on the spray tower from 1 to 3 increased the removal efficiency. Increasing the scrubbing liquid pressure increased the removal efficiency of ammonia gas by spray tower. It is advisable to increase the size of the nozzle outlet and apply caustic scrubbing solution to get removal efficiencies of higher than 90%.
Patent
11 Jan 2019
TL;DR: In this paper, an anti-salt deposition alkali liquor scrubbing tower is described, where a spray system is arranged in the tower, an alkali liquid return-flow system is in the spray tower, and two limiting devices are arranged on the moving trolley track and are used for limiting the trolley positions.
Abstract: The invention discloses an anti-salt deposition alkali liquor scrubbing tower which comprises a scrubbing tower body, wherein a flue gas inlet and a flue gas outlet are formed in the scrubbing tower body; a spray system is arranged in the tower; an alkali liquor return-flow system is arranged in the spray tower; the anti-salt deposition alkali liquor scrubbing tower further comprises a moving trolley and a trolley track; the moving trolley is capable of reciprocating on the track; a stirring device is arranged on the moving trolley; an electromagnetic gate valve is arranged below the scrubbingtower body; the stirring device can stretch into the scrubbing tower body from the electromagnetic gate valve and reach the flue gas inlet; and two limiting devices are arranged on the moving trolleytrack and are used for limiting the trolley positions. The problems that the furnace needs to shut down and salt deposition needs to be manually cleaned are solved, the manpower and material resources are saved, and the capacity is effectively improved.
Patent
18 Dec 2018
TL;DR: In this article, a technological process for ion purification of exhaust gas and related to the field of purification is described, which includes the following steps: exhaust gas enters equipment through the bottom of a spray tower and passes through a packing in the spray tower from the bottom to the top, forming a convection current with a spray liquid which flows from the top from bottom and completing the transfer process.
Abstract: The invention provides a technological process for ion purification of exhaust gas and relates to the field of exhaust gas purification. The technological process comprises the following steps: exhaust gas enters equipment through the bottom of a spray tower and passes through a packing in the spray tower from the bottom to the top, forming a convection current with a spray liquid which flows fromthe top from the bottom and completing the transfer process; the exhaust gas is absorbed by the spray liquid, and a solution formed falls into a water tank at the bottom of the spray tower; after defogging and dehydration, the exhaust gas obtained after primary treatment is then discharged; the exhaust gas obtained after primary treatment is introduced into a gas collection system of an ion purification device and enters an ion generator through an air filter; the exhaust gas obtained after secondary treatment is discharged by an exhaust fan; the exhaust gas obtained after secondary treatmentis introduced into a deep oxidation tower by an induced draft fan; and after passing through a filling unit in the deep oxidation tower, the exhaust gas obtained after secondary treatment is discharged by an exhaust funnel. By additionally arranging pre-processing and post-processing on the basis of the ion purification method, the ion purification process of exhaust gas is improved, and removalrate of harmful substances in the exhaust gas is effectively raised.
Patent
29 Dec 2020
TL;DR: In this article, an oil refinery waste gas purification treatment device which structurally comprises an air inlet pipeline, spray tower, a first pipeline, photolysis equipment, a second pipeline, a centrifuge, an exhaust pipe and a fan is presented.
Abstract: The invention discloses an oil refinery waste gas purification treatment device which structurally comprises an air inlet pipeline, a spray tower, a first pipeline, photolysis equipment, a second pipeline, a centrifuge, an exhaust pipe and a fan. The bottom of the spray tower communicates with the air inlet pipeline, and the top of the spray tower communicates with the photolysis equipment throughthe first pipeline. The photolysis equipment communicates with the centrifuge through the second pipeline. The top of the centrifuge is provided with the exhaust pipe, and the side face of the centrifuge is connected with the fan. The air inlet pipeline comprises a pipe body, a ball, a rotating ring, a protection structure, a gravity rod and an oil removing structure. The oil refinery waste gas purification treatment device has the beneficial effects that through cooperation between the protection structure and a spray head, dirt is formed on the surface of the protection structure and can becomprehensively dissolved during dirt cleaning; And when being not in use, the spray head is wrapped inside through the protection structure so that an outlet of the spray head can be protected frombeing blocked by oily components, the dirt in the pipeline can be cleaned up, and secondary pollution to entering air is prevented.
Patent
02 Apr 2019
TL;DR: In this article, an environment treatment system for dehumidification and dedusting in salt production industry, and relates to an environmental treatment system is described, which consists of a dust suction hood, a filter and a fan which are sequentially connected by a pipeline.
Abstract: The invention discloses an environment treatment system for dehumidifying and dedusting in salt production industry, and relates to an environment treatment system. The technical solution of the invention mainly comprises that the environment treatment system comprises a dust suction hood, a filter and a fan which are sequentially connected by a pipeline, and further comprises a spray tower arranged between the dust suction hood and the filter; an air inlet of the spray tower abuts and communicates with the dust suction hood; and a water tank and a water pump are arranged outside the spray tower, a water outlet of the spray tower communicates with the inner top of the water tank via a drain pipe, the inner bottom of the water tank communicates with a sprinkler head via a return water pipe,the water pump is arranged at the return water pipe, and the water pump is used to pump water in the water tank to the sprinkler head. Salt particles of the treatment system do not easily block the pipeline, and the treatment system can maintain high dust-removal efficiency; water circulation can be continuously performed when an operator changes water in the water tank, and a relatively high treatment capacity on the salt particles in air by the spray tower is ensured. By setting a screw rod, the filter can be automatically cleaned, thereby greatly extending the service life of the filter.

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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20221
20216
202047
201993
201882
201785