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A kind of gas dedusting device and its dedusting method and application

A technology of gas dust removal and push device, which is applied in separation methods, chemical instruments and methods, and separation of dispersed particles. It can solve the problems of ceramic materials such as resistance to bending and processing and molding that are difficult to meet requirements, dust removal operations that cannot be used, and high dust concentration. , to achieve good economic benefits and application prospects, easy to recycle and avoid damage

Active Publication Date: 2020-12-29
JIANGSU ZHONGKE RUISAI POLLUTION CONTROL ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology also has certain problems. First, the process of backflushing and regenerating the dust removal particle layer through fluidization is actually to drive the dust from the deposition state into the airflow again to become a pneumatic conveying state, and it is necessary to carry out another dust settlement and In the operation of collecting, although the air flow rate is greatly reduced, the dust concentration is very high. If the dust bag is not added to collect the fine dust, it will easily escape
Second, this technical solution still cannot be used for the dedusting operation of ultra-high temperature (>1000°C) exhaust gas, because at such a high temperature, the grate plate supporting the large ball in the lower layer can only use ceramic materials, but ceramic materials are resistant to folding. It is difficult to meet the requirements in bending and processing

Method used

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  • A kind of gas dedusting device and its dedusting method and application
  • A kind of gas dedusting device and its dedusting method and application
  • A kind of gas dedusting device and its dedusting method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 10 sets of ceramic plate groups 2 with two ceramic plates placed in an inverted splayed shape are placed in the high-temperature air duct from bottom to top, and ceramic particles 1 are poured into the ceramic plate group 2 from top to bottom to form a wall of ceramic particles, containing The high-temperature airflow of dust passes through the ceramic particle wall for dust removal; among them, the particle diameter of the large particle ceramic particle sphere is 8mm, the particle diameter of the small particle ceramic particle sphere is 3mm, the accumulation volume of the large particle ceramic particle sphere and the small particle ceramic particle sphere The apparent bulk volume ratio is 2:8, and the composition of ceramic particles 1 is cordierite ceramics; the two ceramic plates of ceramic plate group 2 are rectangular ceramic plates, the length of the short side is 8cm, and the length of the long side is 1m. The distance between the bottom edges of the plates is ...

Embodiment 2

[0051] Except that the number of ceramic plate group 2 is 8 groups; the particle diameter of the large particle ceramic particle sphere is 20mm, the particle diameter of the small particle ceramic particle sphere is 4mm, the accumulation volume of the large particle ceramic particle sphere and the surface of the small particle ceramic particle sphere The apparent stacking volume ratio is 9:1, and the composition of the ceramic particles 1 is mullite ceramics; the two ceramic plates of the ceramic plate group 2 are rectangular ceramic plates, and the length of its short side is 10 cm, and the distance between the bottom edges of the two ceramic plates is 10cm, the angle between each ceramic plate and the plane where its bottom edge is located is 45 °, other steps are all the same as in Example 1.

[0052] The dust removal device has a removal rate of 97% for 5 micron dust in the exhaust gas at 1000°C.

Embodiment 3

[0054] Except that the number of ceramic plate group 2 is 5 groups; the particle diameter of the large particle ceramic particle sphere is 30mm, the particle diameter of the small particle ceramic particle sphere is 5mm, the bulk volume of the large particle ceramic particle sphere and the surface of the small particle ceramic particle sphere The apparent stacking volume ratio is 6:4, and the composition of the ceramic particles 1 is SiC ceramics; the two ceramic plates of the ceramic plate group 2 are rectangular ceramic plates, and the length of its short side is 50 cm, and the distance between the bottom edges of the two ceramic plates is 50 cm. Except that the angle between each ceramic plate and the plane where the bottom edge is located is 60°, other steps are the same as in Example 1.

[0055] The dust removal device has a removal rate of 97% for 5 micron dust in the exhaust gas at 1000°C.

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Abstract

The present invention provides a gas dust removing apparatus, a dust removing method, and uses thereof. The gas dust removing apparatus comprises ceramic particles, a plurality of ceramic plate groups, a material discharging valve, a vibration sieve, a ceramic particle pushing device, a dust pushing device and a ceramic particle conveying device. According to the present invention, dust-containing gas flow penetrates through the ceramic particles filled in the gap between the ceramic plate groups so as to be subjected to dust removing, the ceramic particles adsorbing the dust are discharged on the vibration sieve, the dust on the ceramic particles is screened out through vibration, the dust-removing ceramic particles are pushed to the ceramic particle conveying device through the ceramic particle pushing device, then are pushed to the top portion of the gas dust removing apparatus, and finally are poured into the gap between the ceramic plate groups, and the dust screened by the vibration sieve is pushed out of the gas dust removing apparatus by the dust pushing device; and the gas dust removing apparatus is made mainly from the ceramic has characteristics of high-temperature resistance, low air resistance and high dust removal efficiency, and is suitable for treating industrial dust-containing waste gas with a temperature of higher than 400 DEG C, especially higher than 1000 DEG C.

Description

technical field [0001] The invention belongs to the field of environmental protection and waste heat recovery, and relates to a gas dedusting device, a dedusting method and its application, and in particular to a high-temperature gas dedusting device, its dedusting method and its application. Background technique [0002] With the rapid development of my country's economy, energy issues have become increasingly prominent. At present, many high-energy-consuming industries such as metallurgy and electric power in my country have begun to fully implement technological transformations such as waste heat recovery and other energy-saving and consumption-reducing technologies. At the moment when energy is increasingly scarce, the waste heat of waste gas at around 350°C is worth recycling. It can be seen that waste heat recovery will be one of the important ways to save energy and reduce consumption in my country's industrial industry. However, most of the waste gas containing reco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D46/30B01D46/42
Inventor 岳仁亮单文奎吴傲立
Owner JIANGSU ZHONGKE RUISAI POLLUTION CONTROL ENG