Spray tower

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

Roller kiln quench zone exhaust heat utilization apparatus

Abstract: The utility model discloses a device which uses heat of a quench zone of a roller kiln. The middle of the roller kiln is provided with a fusion cake smoke gas air inlet pipe, the rear of the roller kiln is provided with a fusion cake smoke gas discharge pipe connected with a spray tower by a pipeline, and the upper part of the quench zone is provided with a surplus heat collecting pipe connected with the spray tower by a surplus heat discharge pipe. The device collects indoor heat of the quench zone by adding the air pipe, absorbs the heat at the bottom of the quench zone to heat smoke gas from a fusion cake furnace, and achieves the purpose for fully using surplus heat of the quench zone.

Gas-solid-liquid separation and purification system for agricultural and forestry biomass material gasified gas

Abstract: The invention discloses a gas-solid-liquid separation and purification system for agricultural and forestry biomass material gasified gas. The gas-solid-liquid separation and purification system comprises four parts of a dry dedusting system, a wet washing system, a condensation separation system and a purification and dehumidification system. The dry dedusting system comprises a gas feeding pipe, a cyclone separator and a gravity check valve. The wet washing system comprises a spray tower, a washing tower, a cooling circulation tank matched with the washing tower, a mesh belt-type slag remover and an in-line pump. The condensation separation system comprises a tubular screw-type condenser, a cooling tower, a water tank and an in-line pump. The purification and dehumidification system comprises a wire gauze filter, a blower fan and a purification tower. The gas-solid-liquid separation and purification system is scientific and reasonable, utilizes the tubular screw-type condenser to replace a coil tube-type condenser, a return tube-type or a needle tube-type condenser, and is convenient for use and maintenance. Through the gas-solid-liquid separation and purification system, gas produced by biomass pyrolysis can be fully separated and purified thereby reaching requirements on gas for an internal combustion engine and on gas feeding of an internal combustion engine, and continuous and stable gas feeding is formed.

Tail gas photo-oxygen pyrolysis purifying method

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.

Intensified wet-limestone smoke desulfurizing spray tower

Abstract: Disclosed is a reinforced wet limestone flue gas desulfurization spray tower which is used for the flue gas desulfurization of the thermal power plant, comprising a flue gas inlet, a flue gas outlet, an oxidation groove, an absorbing liquid spray layer with a spray nozzle, demisters and flooding nozzles of the demisters. An airflow distribution plate on which a plurality of vent holes are evenly distributed is arranged on the upper part of the flue gas inlet. An inverted Y-shaped vertical demister is arranged on the upper part of the absorbing liquid spray layer. A horizontal demister is arranged on the flue gas outlet. The technical proposal of the utility model is suitable for the process of the reinforced absorption of the high flow rate flue gas, reducing the atomization height and improving the desulfurization rate. The size of the spray tower can be reduced and the cross section of the tower can be reduced by about 40%. The atomization height can be reduced by about 30% and the liquid gas ratio can be reduced by at least 25%. Correspondingly, the volume of the oxidation groove can be reduced, saving the site area; thereby, the energy consumption, the equipment investment and the operation charge are obviously reduced.

Recycling process for N-methyl pyrrolidone

Abstract: The invention relates to a safe recycling process for N-methyl pyrrolidone. The safe recycling process comprises the following steps of collecting exhaust gas containing the N-methyl pyrrolidone produced in the production of lithium-ion batteries, feeding the cooled exhaust gas into a spraying absorption tower; absorbing the N-methyl pyrrolidone in the exhaust gas by water to obtain aqueous solution of the N-methyl pyrrolidone; preheating the aqueous solution of the N-methyl pyrrolidone, feeding the aqueous solution of the N-methyl pyrrolidone into a rectifying tower to separate the N-methyl pyrrolidone from the water, separating at a tower bottom to obtain the N-methyl pyrrolidone, separating on a tower top to obtain water vapor; pressurizing the water vapor, increasing the temperature, returning the processed water vapor to a heat exchanger at the bottom of the rectifying tower, and heating the aqueous solution of the N-methyl pyrrolidone; discharging the water vapor of which the heat is exchanged from the rectifying tower, and then preheating the aqueous solution of the N-methyl pyrrolidone from the absorption tower in a form of condensed water; recycling the heat of the water vapor separated from the top of the rectifying tower; and making the preheated condensed water flow back to a spray tower water for recycling. The recycling process has high safety; and meanwhile, the heat is recycled, and the recovery cost is greatly reduced.