Combined-type wet dedusting and desulfurization process and device
A technology of wet dust removal and desulfurization process, which is applied in separation methods, chemical instruments and methods, and separation of dispersed particles. The effect of small running resistance
Inactive Publication Date: 2013-05-08
王学东
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Problems solved by technology
[0011] In view of the shortcomings of the above-mentioned existing technical conditions, the technical problem to be solved by the present invention is to provide a combined wet dust removal and desulfurization process and device, which removes the original dust collector from the system, integrates dust removal and desulfurization, and Solved the problem of corrosion and blockage of the system
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[0029] The present invention will be described below with regard to the process of desulfurizing the flue gas of a sintering machine using lime slurry as a desulfurizing agent. Exhausted from the flue gas outlet of the sintering machine containing soot and SO 2 The flue gas is sucked by the booster fan 1 and pressed to the first processing unit 3 of the dedusting desulfurizer 2, and the alkaline water in the first circulating pool 13 is lifted to the top height of the first processing unit by the first turbid liquid elevator 11. Under the action of the first atomization power source 4, the first turbid liquid atomizer (not shown) is sprayed to the flue gas in the form of mist, and the purpose of dust removal and partial desulfurization is achieved after passing through the cyclone. The dust and sludge discharged from the dust discharge equipment is sent to the filter press for solid-liquid separation through the transmission mechanism, the liquid part is reused, and the solid ...
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The invention relates to a combined-type wet dedusting and desulfurization process and device, relating to the technical field of dedusting and desulfurization of flue gas in coal burning. In the invention, an original dust remover is omitted from a system, dedusting and desulfurization are integrated into a whole, and the problems of corrosion and blocking of the system are solved. The process comprises the following steps of: fuel gas is led into a first treating unit of a dedusting desulfurization device to react with caustic liquor in a first circulating pool, wherein the caustic liquor is sprayed out by a first turbid liquid fogging device; the primarily-treated fuel gas enters the part I of a second treating unit of the dedusting desulfurization device, and then enters the part II of the second treating unit via a self-cleaning filter cartridge and reacts with a desulfurizing agent in a second circulating pool, wherein the desulfurizing agent is sprayed out by a second turbid liquid fogging device; and the fuel gas after reaction is directly discharged. The process and the device thereof reduce running resistance of the system and improve a dedusting ability and an ability to accept the higher fume concentration at an inlet so as to omit the dust remover in front of a desulfurizing tower in the traditional process, and therefore the problem of high one-time investment issolved, and meanwhile the running cost of the system is greatly reduced.
Description
technical field [0001] The invention relates to the technical field of dust removal and desulfurization of coal combustion flue gas, in particular to a wet dust removal and desulfurization process and device applied to small or large combustion equipment. Background technique [0002] In the foreseeable decades, coal will still be the main energy used by human beings. Coal produces soot and sulfur dioxide during combustion. Smoke and dust will reduce the visibility of the atmosphere, weaken the photosynthesis of plants, affect the lung function of humans and animals and cause related diseases. Sulfur dioxide can produce acid rain, corrode buildings, affect plant growth and endanger human health. Therefore, it is necessary to treat the soot and sulfur dioxide emitted by coal-fired facilities, especially large-scale coal-fired facilities. [0003] The treatment of coal-fired waste gas will consume some resources such as funds, electricity, manpower, and material resources. ...
Claims
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IPC IPC(8): B01D53/78B01D53/50B01D47/06
Inventor 王岳王学东
Owner 王学东