Dry process cement plant flue gas wet desulfurization device and method

A wet desulfurization and cement plant technology, applied in the field of flue gas desulfurization, can solve the problems of high cost of desulfurizers and equipment corrosion, and achieve the effects of reducing corrosion, avoiding scaling, and facilitating installation and disassembly

Inactive Publication Date: 2019-09-20
长兴中元氢氧化钙有限公司
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Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a dry-process cement plant flue gas wet desulfurization device and its method, which solves the problems that the existing desulfurizer will cause corrosion to the equipment and the cost of the desulfurizer is high

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  • Dry process cement plant flue gas wet desulfurization device and method
  • Dry process cement plant flue gas wet desulfurization device and method
  • Dry process cement plant flue gas wet desulfurization device and method

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[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or p...

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Abstract

Relating to the field of flue gas desulfurization related technologies, the invention discloses a dry process cement plant flue gas wet desulfurization device. The device includes a preheater, one end of the preheater is communicated with a decomposition furnace, one end of the decomposition furnace is connected to a rotary kiln, the other end of the preheater is communicated with a dust collector, one end of the dust collector is connected to a chimney, the top of the preheater is equipped with a desulfurizer spray gun, the top of the desulfurizer spray gun is connected to a lift pump, and the top of the lift pump is connected to a mixed desulfurizer storage tank. The invention also discloses a dry process cement plant flue gas wet desulfurization method, and the method includes: A. compounding, B. introduction of flue gas, C. introduction of the compounded material; D. primary desulfurization; E. secondary desulfurization; and F. discharge. The method provided by the invention utilizes urea, caustic soda flakes and baking soda for wet desulphurization of flue gas, the dosage of urea in the mixed desulfurizer is small relative to its single use during desulfurization, the change not only reduces the corrosion of the mixed desulfurizer to equipment, but also lowers the cost of desulfurization.

Description

Technical field [0001] The present invention relates to the related technical field of flue gas desulfurization, in particular to a wet flue gas desulfurization device and method for dry cement plants. Background technique [0002] Air pollution is one of the most serious problems facing the survival and development of human society in the 21st century. With the development of my country's economy, environmental pollution caused by energy consumption has become more and more serious. The amount of exhaust gas emissions has increased year by year. A large number of pollutants are discharged into the atmosphere of limited capacity, polluting the atmosphere and causing serious consequences. my country is one of the countries with the most serious air pollution. The main type of air pollution is acid pollution. The amount of pollutants is large and the pollution range is wide. The main factor causing this effect is the SO in the emitted flue gas. 2 . SO 2 There are three control met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/50
CPCB01D53/50B01D53/78B01D2251/2067B01D2251/304B01D2251/60B01D2251/604B01D2258/0283
Inventor 程金科倪来顺
Owner 长兴中元氢氧化钙有限公司
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