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Heat exchange type blast furnace gas water separation and dust reduction device

A blast furnace gas and dust suppression device technology, which is applied in gas dust removal, combustible gas purification, combustible gas purification/reconstruction and other directions, can solve problems such as erosion, easy flameout, increased resistance, etc., achieve controllable cooling temperature, improve gas quality, improve The effect of stability

Pending Publication Date: 2020-04-24
临沂玫德庚辰金属材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high water content and low calorific value of blast furnace gas, it is difficult to ignite and it is easy to extinguish when the working conditions fluctuate. The mechanical water of blast furnace gas will corrode the burner or furnace refractory lining, which will bring great safety hazards or shorten the life of combustion equipment. Blast furnace gas contains a lot of dust. After using blast furnace gas for a long time, the dust in the gas will also deposit in the gas channel, which will increase the resistance and affect the normal adjustment of heating. Therefore, cleaning measures need to be taken

Method used

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  • Heat exchange type blast furnace gas water separation and dust reduction device
  • Heat exchange type blast furnace gas water separation and dust reduction device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Using the present invention, the blast furnace gas is transported through the gas inlet 1 and enters the upper conical pipe 2. The blast furnace gas enters the conical pipe and immediately decelerates and diffuses, the kinetic energy decreases, the dew point drops rapidly, and mechanical water is precipitated. Further, the blast furnace gas passes through the middle of the water analysis and dust reduction device. The tube bundles 43 between the upper and lower flower plates, all the tube bundles 43 are immersed in circulating cooling water, the blast furnace gas in the tube bundles 43 is forced to cool down and analyze water, and by adjusting the cooling water flow, the cooling range is controllable, and the mechanical water falls by gravity. To the lower part of the cylinder 3, while the moisture is precipitated, the dust in the gas and the mechanical water will fall to the bottom of the cylinder 3 under the action of gravity, and the gas outlet 5 set on the cylinder 3 ...

Embodiment 2

[0026] When cleaning and blowing down the interior, open the inspection and maintenance blowdown and ash removal valve group, open the manhole 9, and the equipment personnel will carry out maintenance and repair, cleaning and blowdown.

[0027] In the present invention, the blast furnace gas containing dust and moisture enters the conical tube from the gas inlet 1 through the arrangement of the conical tube and the heat exchange part 4, and immediately decelerates and diffuses, the kinetic energy decreases, the dew point drops rapidly, a large amount of mechanical water is precipitated, and the blast furnace gas passes through the conical tube. All the tube bundles 43 between the upper and lower gratings 42 in the middle of the water analysis and dust reduction device are immersed in circulating cooling water, which plays a role in forced cooling of the blast furnace gas in the tube bundle 43, and the mechanical water falls by gravity. To the lower conical pipe 21, while the wa...

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PUM

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Abstract

The invention discloses a heat exchange type blast furnace gas water separation and dust reduction device. The lower end of the gas inlet is connected with an upper conical pipe; the lower end of theupper conical pipe is connected with a cylinder; the gas outlet is formed in the lower side of the cylinder; a heat exchange part is arranged in the cylinder body; the horizontal position of the heatexchange part is higher than the gas outlet; the lower end of the cylinder communicates with a lower conical pipe; the lower end surface of the lower conical pipe is connected with an overhaul drainage blow-down valve group; the cooling water inlet is formed in the lower side of the heat exchange part and communicates with the interior of the heat exchange part; the cooling water outlet is formedin the upper side of the heat exchange part and communicates with the interior of the heat exchange part; the lower side of the lower conical pipe is provided with a drainage blow-down valve group anda manhole; and the gas inlet, the upper conical pipe, the cylinder, the lower conical pipe and the overhaul drainage blow-down valve group are located on the same axis and are communicated mutually.Blast furnace gas can be forcibly cooled, water separation and dust reduction are carried out, the gas quality is improved, the combustion stability is improved, damage to combustion equipment is reduced, and the structure is simple and the effect is stable.

Description

technical field [0001] The invention relates to the technical field of tail gas treatment, in particular to a heat exchange type blast furnace gas water analysis and dust reduction device. Background technique [0002] Blast furnace gas is a by-product of blast furnace production in the ironmaking industry. It generally contains about 5mg / m3 of dust and 7g / m3 to 30g / m3 of moisture (the moisture content is even higher under special production conditions). It is generally used in other production processes or gas in the iron and steel industry. Fuel for power generation. Due to the high water content and low calorific value of blast furnace gas, it is difficult to ignite and it is easy to extinguish when the working conditions fluctuate. The mechanical water of blast furnace gas will corrode the burner or furnace refractory lining, which will bring great safety hazards or shorten the life of combustion equipment. Blast furnace gas contains a lot of dust. After long-term use o...

Claims

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Application Information

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IPC IPC(8): C10K1/02C10K1/00
CPCC10K1/00C10K1/02
Inventor 邱溆峰张宇豪焦勇王宁舒磊展新宇崔士选
Owner 临沂玫德庚辰金属材料有限公司