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Filter bag modification system and method for flue gas purification

A flue gas purification and modification technology, applied in the field of gas purification

Inactive Publication Date: 2021-03-30
南京科赫科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese Patent Application No. 201410757998.X discloses a method for modifying the surface of the separation membrane to be hydrophobic and oleophobic. Atomic layer deposition (ALD) is used to coat the polytetrafluoroethylene network fibers with nanoparticles and then treated with plasma. The surface of polytetrafluoroethylene is then placed in perfluoromonomer for plasma grafting treatment to obtain a modified hydrophobic and oleophobic membrane, but this method can only treat the surface fibers of the membrane material, and the fibers at the bottom of the filter bag cannot contact the modifier to obtain modification

Method used

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  • Filter bag modification system and method for flue gas purification

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Comparison scheme
Effect test

Embodiment 1

[0024] The method for modifying the filter bag by using the above-mentioned filter bag modification system for flue gas purification comprises the following steps:

[0025] Step 1: Hang the filter bag to be modified on the flower plate of the modification device 3, and install a supporting cage for support;

[0026] Step 2: inject the modified raw material a into the modified raw material tank 1, turn on the modified raw material pump 2, the modified fan 4, the tail gas fan 8 and the modified raw material recovery pump 5 in turn, and blow the clean air from the lower part of the modified device 3 through the blower The inlet is fed with clean air; the modified raw material a is a hydrophobic modified raw material, and the hydrophobic modified raw material is a mixed solution of polyethersulfone and isophorone;

[0027] Step 3: After running for 5 minutes, turn off the modified raw material pump 2, and keep the modified fan 4, exhaust fan 8 and modified raw material recovery pu...

Embodiment 2

[0030] The method for modifying the filter bag by using the above-mentioned filter bag modification system for flue gas purification comprises the following steps:

[0031] Step 1: Hang the filter bag to be modified on the flower plate of the modification device 3, and install a supporting cage for support;

[0032] Step 2: inject the modified raw material a into the modified raw material tank 1, turn on the modified raw material pump 2, the modified fan 4, the tail gas fan 8 and the modified raw material recovery pump 5 in turn, and blow the clean air from the lower part of the modified device 3 through the blower The inlet is fed with clean air; the modified raw material a is an oleophobic modified raw material, and the oleophobic modified raw material is a suspension of perfluorooctyltrichlorosilane of silica nanoparticles;

[0033] Step 3: After running for 20 minutes, turn off the modified raw material pump 2, and keep the modified raw material fan 4, tail gas fan 8 and m...

Embodiment 3

[0036] The method for modifying the filter bag by using the above-mentioned filter bag modification system for flue gas purification comprises the following steps:

[0037] Step 1: Hang the filter bag to be modified on the flower plate of the modification device 3, and install a supporting cage for support;

[0038] Step 2: inject the modified raw material a into the modified raw material tank 1, turn on the modified raw material pump 2, the modified fan 4, the tail gas fan 8 and the modified raw material recovery pump 5 in turn, and blow the clean air from the lower part of the modified device 3 through the blower The inlet is fed with clean air; the modified raw material a is an amphoteric modified raw material, and the amphoteric modified raw material is a suspension of nano-zinc oxide perfluorodecyl acrylate;

[0039] Step 3: After running for 30 minutes, turn off the modified raw material pump 2, and keep the modified raw material fan 4, tail gas fan 8 and modified raw ma...

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Abstract

The invention discloses a filter bag modification system for flue gas purification. The filter bag modification system comprises a modification raw material tank, a modification raw material pump, a modification device, a modification fan, a modification raw material recovery pump, a cyclone gas-liquid separator, a tail gas treatment device and a tail gas fan, wherein the modification raw materialtank is connected with the modification raw material pump through a pipeline, the modification raw material pump is connected with the lower portion of the modification device through a pipeline, theupper portion of the modification device is connected with the inlet of the modification fan through a pipeline, and the outlet of the modification fan is connected with the inlet of the cyclone gas-liquid separator through a pipeline. According to the filter bag modification system for flue gas purification, the filter bag is modified dynamically, so that the modified material enters the filterbag material, the filter bag material is modified from the surface to the interior, the filter bag modification requirements of different requirements can be met, the applicability is wide, and the operation is simple and convenient. The invention also discloses a method for modifying the filter bag for flue gas purification by using the system for modifying the filter bag for flue gas purification.

Description

technical field [0001] The invention belongs to the technical field of gas purification, and in particular relates to a filter bag modification system and method for flue gas purification. Background technique [0002] In industrial production, a large amount of waste gas mixed with solid particles and air will be produced. If this waste gas is discharged directly into the atmosphere, it will pollute the environment and affect the health of people or other organisms. The dust collector is a commonly used device that can effectively purify the waste gas containing solid particles and remove the dust in the gas. The filter bag is the core component of the dust collector, which determines the operation stability and dust removal efficiency of the dust collector. However, the composition of the flue gas is complex. In addition to solid particles, it also contains water vapor, oily aerosols, nitrogen oxides and other pollutants. It is necessary for the filter bag to operate stabl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/42B01D46/02B01D45/16B01D53/02F23G7/07
CPCB01D46/4227B01D46/02B01D45/16B01D53/02F23G7/07B01D2258/0283B01D2253/102
Inventor 罗玉湘孟祥宇
Owner 南京科赫科技有限公司