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High-temperature coal gas filtering and purifying device and method for static bed

A technology for filtering and purifying gas, applied in the direction of gas dust removal, etc., can solve problems such as environmental pollution, and achieve the effects of ensuring purity, increasing furnace temperature and high filtering efficiency.

Inactive Publication Date: 2015-12-30
舒瑞 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Does not produce waste water and dust, which solves the environmental pollution problem caused by gas purification

Method used

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  • High-temperature coal gas filtering and purifying device and method for static bed

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Experimental program
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Effect test

Embodiment Construction

[0014] The device is divided into three steps: feeding, filtering, and slag removal.

[0015] The filter material falls into the primary feeding box 2 through the filter material inlet 1, the primary sealing bell jar 3 is opened, the filter material falls into the secondary feeding box 4, the primary sealing bell jar 3 is closed, and the secondary sealing bell jar 5 is opened. The filter material falls into the 6 cavities of the main body. In this way, the primary sealing bell jar 3 and the secondary sealing bell jar 5 are switched alternately to achieve the purpose of sealing the feeding process.

[0016] The filter material is supported by the top and side of the tower grid 8 in the cavity of the main body 6, and the tower grid 8 is provided with a multi-stage annular gas channel 9.

[0017] The crude gas enters the gas box 10 through the crude gas inlet 15 and through the annular water seal groove 17 . Enter the filter material layer 7 through the annular gas passage 9, a...

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Abstract

The invention provides a high-temperature coal gas filtering and purifying device and method for a static bed. The device and the method are characterized in that cinder dust or semicoke serves as a filter material. Raw coal gas enters the device from the bottom of the device, and passes through a filter material layer through a coal gas passage of a tower grid, so that motes in the raw coal gas are adsorbed to gaps in the cinder dust and micropores in the surface of the cinder dust, and purified coal gas is output to a user's device through a purified coal gas outlet. When approaching to a saturated condition, the filter material falls down slowly into a water basin, a coal gas box and a water sealing partition rotate slowly as external power is transmitted to a ratchet wheel, and the water basin (containing the filter material), the tower grid and the coal gas box which are welded into a whole, and saturated cinder dust is exhausted out of the device step by step. Moreover, two grades of sealing bell jars of a feeding mechanism are opened and closed alternately to feed a new filter material, so as to maintain the height of the filter material layer. Therefore, the filtering continuity and the purity degree of coal gas are ensured.

Description

technical field [0001] The invention belongs to the field of gas purification, in particular to a fixed-bed high-temperature gas filtration and purification device and method. Background technique [0002] At present, the purification methods of gas at home and abroad are mainly divided into: fixed bed gas generator purification procedure is: mechanical cyclone centrifugal separation-electric precipitator-coal gas above 450 ℃ is cooled to below 45 ℃ with water-electric precipitator-dropper- user. Produce waste water to pollute the environment, consume energy in the cooling process, and wash away the sensible heat of the gas at the same time, some users have to reheat the gas in order to increase the combustion temperature of the kiln, which wastes a lot of energy and increases the cost of gas ; Fluidized bed gas generator purification program is: mechanical cyclone centrifugal separation - water washing 800 ℃ to 900 ℃ gas down to 45 ℃ - dropper - user, energy waste is more ...

Claims

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Application Information

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IPC IPC(8): C10K1/02
Inventor 舒瑞舒克孝
Owner 舒瑞
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