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Mobile-bed flue gas desulfurization and defluorination device

A moving bed and flue gas technology, applied in the field of environmental engineering, can solve problems such as high operating costs, complicated operations, and large floor space

Active Publication Date: 2014-05-07
CHINA NAT HEAVY MACHINERY RES INSTCO
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a moving bed flue gas desulfurization and defluorination device, which overcomes the problems in the prior art that the semi-dry desulfurization equipment occupies a large area, the operation is complicated, the operation cost is high, and the removal efficiency is not high enough

Method used

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  • Mobile-bed flue gas desulfurization and defluorination device

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Embodiment 1

[0036] The present invention provides such as Figure 1-6 A moving bed flue gas desulfurization and defluorination device shown includes a device body 20, an air inlet 1 arranged on the left side of the body 20, an air outlet 2 arranged on the right side of the body 20, and an air outlet arranged on the top of the body 20. Feed box 3, ash hopper 4 arranged at the lower end of the body 20, multiple groups of air-water two-phase atomizing nozzles-5 for humidifying the feed are provided on the inner surface of the feed box 3, and ultrasonic material is provided on the upper surface of the feed box 3. Position meter 21, air inlet 1 is equipped with gas-water two-phase atomization nozzle 2 6 for flue gas conditioning and deflector 7 for uniform airflow, deflector 7 is placed at air inlet 1 and air-water two-phase Between the two atomizing nozzles 6, it is characterized in that: the body 20 is provided with at least two vertically arranged grid-shaped wall panels 11, and the middle ...

Embodiment 2

[0038] On the basis of embodiment 1, provided in this embodiment such as Figure 1-11The grid-shaped slots 9 shown are arranged at equal intervals along the vertical direction on the grid-shaped wallboard 11, and the opening angle is 0-60 degrees. The feed box 3 includes an inner top surface and an inner side surface, and the air-water two-phase atomizing nozzle-5 is arranged at a height of 3 / 4 of the inner top surface and the inner side surface. On the outside 100-300mm of the grid-shaped wallboard 11, there are multiple groups of air-water two-phase atomizing nozzles 13 arranged at equal intervals of 300-1000mm along the vertical direction. The reactant 12 is granular solid CaCO3 or CaO with a diameter of 1-15 mm. The air inlet 1 and the air outlet 2 can adopt the form of horizontal air intake and horizontal air outlet, upper air intake and lower air outlet or lower air intake and upper air outlet. The ash hopper 4 adopts an inverted cone or boat-shaped structure, the bott...

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Abstract

The invention provides a mobile-bed flue gas desulfurization and defluorination device. At least two grid type wall boards vertically distributed are arranged in a device body, and the part between the two grid type wall boards is filled with a reactant capable of slowly moving from top to bottom under the action of the gravity; the two grid type wall boards are arranged between a feed box and an ash hopper; each grid type wall board is provided with a grid type slot hole with an obliquely upward opening, and the opening is formed in the outer surface of the grid type wall board; a gas-water double-phase atomized nozzle III for supplying water to the reactant is arranged on one side, close to the outer surface of each grid type wall board, in the body; an ash pipe is arranged at the lower part of an air outlet, the upper end of the ash pipe is connected with the lower part of the air outlet, the lower end of the ash pipe is connected with the ash hopper, and a channel board vertically arranged and used for falling of dust is arranged in the air outlet.

Description

technical field [0001] The invention belongs to the field of environmental engineering, and in particular relates to a moving bed flue gas desulfurization and defluorination device. Background technique [0002] During the operation of metallurgy, electric power and other industrial furnaces and kilns, a large amount of flue gas containing sulfur and fluorine is produced according to the difference of fuel and production raw materials. At present, the number of flue gas purification technologies developed, developed and used exceeds one hundred. Generally, fuel, raw materials and flue gas are processed in three stages before fuel combustion, during combustion and after combustion. Now the most industrial application is flue gas purification after combustion (desulfurization, defluorination, etc.). The treatment processes of flue gas desulfurization and defluorination mainly include dry method, wet method and semi-dry method. [0003] Dry technology is to use solid powder ...

Claims

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Application Information

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IPC IPC(8): B01D53/80B01D53/50B01D53/68
Inventor 艾华张磊李峰李德志
Owner CHINA NAT HEAVY MACHINERY RES INSTCO
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