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Jetting, powder feeding and slurry mixing integrated device and method for wet flue gas desulfurization

A technology of wet flue gas desulfurization and powder feeding, which is applied in chemical instruments and methods, gas treatment, separation methods, etc., can solve problems such as complexity, high energy consumption, and high cost, and achieve water balance, cost reduction, Reduce the effect of limestone mixing system

Inactive Publication Date: 2016-12-07
SHANGHAI HANZHUO ENERGY TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the structure of the previous wet flue gas desulfurization system is complicated and the cost is relatively high
Due to the complexity of the system, the operating energy consumption of the entire system is also very high

Method used

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  • Jetting, powder feeding and slurry mixing integrated device and method for wet flue gas desulfurization

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Embodiment Construction

[0023] Such as figure 1 As shown, the wet-process flue gas desulfurization integrated device for spraying powder feeding and slurry mixing of the present invention includes a limestone powder bin 100, a limestone powder feeder 200, a powder gas mixer 300, a water jet aspirator 400, and a slurry middle tank 500.

[0024] Wherein, the limestone powder bin 100 is connected to the feed port of the limestone powder feeder 200 through a feed valve 101 . The limestone powder feeder 200 is a screw weighing feeder, so that the amount of limestone powder entering can be controlled. The discharge port of the limestone powder feeder 200 is connected to the powder inlet end of the powder gas mixer 300, and the inlet port of the powder gas mixer 300 is connected to air.

[0025] The outlet end of the powder gas mixer 300 is connected to the inlet end of the water jet aspirator 400, and the injection end of the water jet aspirator 400 is connected to the bottom of the slurry tank 11 of the...

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Abstract

The invention discloses a jetting, powder feeding and slurry mixing integrated device and method for wet flue gas desulfurization. The device comprises a powder and air mixer, a water jet air ejector and a slurry middle groove; limestone powder is input in the powder inlet end of the powder and air mixer, air is input in the air inlet end of the powder and air mixer, and the outlet end of the powder and air mixer is connected with the air inlet end of the water jet air ejector; the jetting end of the water jet air ejector jets gypsum slurry into the water jet air ejector, and the outlet end of the water jet air ejector is connected to the slurry middle groove; the bottom of the slurry middle groove is communicated with a slurry pond of a desulfurizing tower, a communicating vessel is formed, and the top of the slurry middle groove is provided with an exhaust port. The device has the advantages of being simple in structure, low in operating energy consumption, convenient to operate and capable of reducing unbalanced pressure of water in a desulfurization system.

Description

technical field [0001] The invention belongs to the wet flue gas desulfurization technology of the Ming Dynasty, and in particular relates to an integrated device and method for spraying powder feeding and mixing slurry for wet flue gas desulfurization. Background technique [0002] In wet flue gas desulfurization, in order to neutralize the SO washed by the spray layer of the absorption tower 2 , HCl, HF and other acidic substances and to ensure that the pH in the absorption tower is at a stable value, it is necessary to add CaCO 3 Or CaO or NaOH or MgO and other desulfurizers. [0003] At present, the dry desulfurizer feeding system (such as limestone powder, 250 mesh, 90% sieving rate) is transported to the factory area by self-unloading sealed tank truck, and transported to the limestone powder bin. The limestone powder stored in the limestone powder bin is fluidized by the gasification fan, and enters the gypsum slurry tank through the rotary feeding valve, and the po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/80B01D53/50
CPCB01D53/80B01D53/50B01D2251/404B01D2258/0283
Inventor 刘上光
Owner SHANGHAI HANZHUO ENERGY TECH