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A kind of ceramic dedusting equipment and process for tobacco cutting

A technology for dust removal equipment and ceramics, which is used in the separation of dispersed particles, chemical instruments and methods, and filtration of dispersed particles. There are only 98% and other problems to achieve the effect of increasing the filling area, improving the application value and improving the cleaning effect.

Active Publication Date: 2017-09-15
JIANGSU JIULANG HIGH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Patent CN202315565 U discloses a high-efficiency ceramic cyclone dust collector, which has the characteristics of high temperature resistance and corrosion resistance. The ceramic material increases the smoothness inside the equipment and helps to improve the internal blockage of dust, but its dust filtration efficiency is only 98%. , so it is difficult to remove fine and lighter particles
[0006] The ceramic tubes in the existing ceramic dust collector are all arranged in a single layer, the equipment filling area is small, and the space for the injection equipment and dust removal equipment is wasted
Chinese invention patent CN203030134 U introduces a high-temperature ceramic dust collector with frequency-adjustable sound wave cleaning, which uses sound waves to improve the cleaning efficiency, but the ordinary ceramic filter element has a single structure, and the pore structure is easily blocked, resulting in a rapid rise in filtration pressure
Patent CN203694778 U provides a granular layer porous ceramic dust collector for filtering PM2.5, but the ceramic filter elements are arranged in a single layer, which makes the filling efficiency of the dust collector low, and the patent uses an integral pulse, which requires not only a large The Venturi diversion device raises the height of the equipment, and the spray cleaning effect is not good

Method used

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  • A kind of ceramic dedusting equipment and process for tobacco cutting
  • A kind of ceramic dedusting equipment and process for tobacco cutting
  • A kind of ceramic dedusting equipment and process for tobacco cutting

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Embodiment 1

[0036] In this embodiment, a silicon carbide ceramic membrane tube 5 with an outer diameter of 35 mm, a length of 300 mm, and an average pore diameter of 20 μm is used as a filter element. The ceramic membrane integrated assembly 13 adopts a four-layer structure, and the silicon carbide ceramic membrane tube 5 uses asbestos as a sealing ring 6 . The inclination angle of the deflector 3 is 60 degrees, all the silicon carbide membrane tubes 5 are arranged in a triangle, and the distance between the centers of the membrane tubes is 60 mm. The dust concentration at the outlet of the dust collector is lower than 5mg / m 3 , The dust retention rate is greater than 99.9%, and the equipment resistance is less than 800Pa.

Embodiment 2

[0038] In this embodiment, a silicon carbide ceramic membrane tube 5 with an outer diameter of 60 mm, a length of 1500 mm, and an average pore diameter of 10 μm is used as a filter element. The ceramic membrane integrated assembly 13 adopts a two-layer structure, and the silicon carbide ceramic membrane tube 5 is sealed with a ceramic fiber felt. Circle 6. The inclination angle of the deflector 3 is 45 degrees, all the silicon carbide membrane tubes 5 are arranged in concentric circles, and the distance between the centers of the membrane tubes is 100 mm. The dust concentration at the outlet of the dust collector is lower than 3mg / m 3 , The dust retention rate is greater than 99.95%, and the equipment resistance is less than 1500Pa.

Embodiment 3

[0040] In this embodiment, an alumina ceramic membrane tube 5 with an outer diameter of 20 mm, a length of 450 mm, and an average pore diameter of 50 nm is used as a filter element. The ceramic membrane integrated module 13 adopts a three-layer structure, and the alumina ceramic membrane tube 5 uses graphite as a sealing ring. 6. The inclination angle of the deflector 3 is 30 degrees, the aluminum oxide membrane tubes 5 of the upper two membrane modules are arranged in a triangle, and the aluminum oxide membrane tubes 5 of the lower membrane module are arranged in concentric circles, and the distance between the centers of the membrane tubes is 40mm. The dust concentration at the outlet of the dust collector is lower than 1mg / m 3 , The dust retention rate is greater than 99.99%, and the equipment resistance is less than 5000Pa.

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Abstract

The invention provides ceramic dedusting equipment and technology for cutting shredded tobacco. The equipment mainly includes ash hopper, ceramic membrane integrated components, shell, deflector, back blowing device and clean air chamber. During dust removal, the dust-laden gas first enters the casing evenly through the deflector, and the dust-laden gas is purified through the ceramic membrane under the action of the induced draft fan, and the dust is trapped on the surface of the ceramic membrane. When the pressure rises to the set value, the backflush is carried out, and the backflush gas is dispersed into each membrane tube in the membrane module for reverse pulse cleaning. This dust removal device can handle spark dust and can withstand a high temperature of 500 ° C, and the PM2.5 interception rate can reach 99.99%. The device of the invention has the advantages of compact structure, high dust removal precision, spark resistance, high temperature resistance, acid and alkali resistance, long service life, strong applicability to dusty gas with sparks such as cutting tobacco shreds, and can also be used for high temperature flue gas dust removal such as boilers. deal with.

Description

technical field [0001] The present invention relates to a kind of ceramic dedusting equipment and process for cutting tobacco, in particular to a ceramic dedusting device for filtering spark dust during tobacco cutting, and the equipment can also be used for dust treatment of high-temperature flue gas such as boilers. Background technique [0002] During the cutting process of shredded tobacco, a lot of fine shredded tobacco dust will be produced, which will not only pollute the environment, but also cause harm to the human body, so it needs to be purified. Traditional dust removal technologies, such as water film wet dust removal, cyclone dust removal and electric dust removal, have low dust removal efficiency and have many limitations. resistance. [0003] Bag type dust removal, especially film-coated filter bag dust removal, has a high dust removal efficiency, and the removal rate of the average particle size of 2.5 μm can reach more than 99.99%, but the tobacco shreds w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D50/00B01D46/24B01D46/54B01D46/42
Inventor 仲兆祥许志龙武军伟
Owner JIANGSU JIULANG HIGH TECH CO LTD
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