KR20110112752A - Cleaning unit for attach the cartridge filter dust collector - Google Patents

Abstract

Technical Field
The present invention is a device that allows the use of the filter repeatedly by removing the particle layer of the dust formed on the outside of the cartridge filter in the process of collecting the particulate dust contained in the air in the dry dust filter dust collector of the air pollution prevention facility.
Challenge to be solved
Maximize the dust removal function in the filter of the dust collector using the cartridge filter to prevent the filter from being clogged with dust and preventing the dust collection function from dropping or losing, and preventing the breakage of the filter cloth caused by the injection of strong compressed air during dust extraction and the outflow of dust
Solution to problem
Among the many filters installed inside the dust collector, the dedusting filter blocks the airflow and the spraying direction of the compressed air should be sprayed close to the orthogonal direction of the filter cloth from the inside of the filter to the outside and evenly sprayed at a constant pressure on the whole surface of the filter cloth.
For this purpose, the cover on the top of the filter, which was opened by the gas intake of the blower, is supplied with compressed air for the exhaust of the filter, and closed by the force of the compressed air, and the shaft (B3) and the rotating bundle (B5) are fitted with a bearing in the middle. The compressed air supplied to the tube (B1) blows the filter medium from the inside of the filter to the outside through the hole to shake off the dust, and the repulsive force caused by the injection pressure rotates the tube and the rotating bundle.
effect
According to the present invention, fine dust particles, which are one of the problems of the existing filter dust collectors, are caused by particle leakage (seepage) or pinholes during a dusting process of a blind jet and a pulse jet method in which the fine dust particles penetrate between the pores of the filter cloth. Minimize the occurrence of fault processes such as generation.
This extends the use time of the filter, reducing the cost and waste of replacement, and enabling the use of micro-filters, hepa filters, membrane filters, etc., which have low physical durability, thereby preventing human body damage and environmental pollution caused by fume dust. do.

Description

Cleaner unit for attach the cartridge filter dust collector

The present invention is a device that allows the use of the filter repeatedly by removing the particle layer of the dust formed on the outside of the cartridge filter in the process of collecting the particulate dust contained in the air in the dry dust filter dust collector of the air pollution prevention facility.

Pores of porous structure, such as PTFE membrane filters, are applied to dust collectors for the purpose of removing fine dust using filter cloths that are easily broken by existing dust extraction methods.

In general, the dust extraction method of the filter bag filter with a cartridge filter uses a pulsating jet stream and generates a shock wave at the surface of the filter with a high impact ejection pressure of 90 to 100 psi for a short time of 0.03 to 0.10 seconds to shake off the dust outside the filter. (Pulse jet) method is applied.

However, the pulse jet type has a disadvantage in that air is injected from the nozzle located at the top of the filter to the lower side of the filter, so that the ejection pressure is not evenly transmitted to the entire surface of the filter medium. The shock wave repeatedly diffuses and contracts the filter cloth, causing frequent accumulation of stress in the frame and bonded filter cloth portion of the filter, and the filter cloth also passes through the filter as time passes due to breakage or widening of the pores formed by the strong air pressure. There is an example of a lot of dust.

In the present invention, the use of compressed air as a method of dusting off the filter medium is the same as the impact jet method, but the operating principle is remarkably different.

Cover the top of one of the many filters installed inside the dust collector to block the flow of airflow, and blow out the compressed air within 60 psi for 1 to 3 seconds in the direction of the filter cloth from the holes drilled at regular intervals in the inner tube of the filter. The direction is deviated by 15 degrees from the side, which rotates due to the repelling force of the ejection pressure applied to the pleats of the filter during ejection.

This effectively removes dust due to the vibration of the filter generated during rotation and weakly sprayed air without the impact wave on the filter surface, without the impact of the air flow due to the blocking of the air flow and forming a shock wave on the filter surface.

W0 01/54797 A1 KR 10-1999-0063121 A KR 1994-0015071 A KR 10-2001-0041708 A KR 10-2002-0005665 A KR 10-0761318 B1 KR 10-0845967 B1 KR 10-2008-0103248 A KR 10-0815456 B1

Latest Air Pollution Prevention Technology Theory and Application of Dust Collecting Technology Kang, Seok-ho et al. Yeungnam University Press, 2004 Latest Atmospheric Engineering Design Seo Jung Min et al. 3 Book Publishing Fairy Tale Technology 2007 Latest Atmospheric Control Engineering Mikyung Kim et al.

Maximize the dust removal function in the filter of the dust collector using the cartridge filter to prevent the filter from being clogged with dust and preventing the dust collection function from dropping or losing, and preventing the breakage of the filter cloth caused by the injection of strong compressed air during dust extraction and the outflow of dust

Among the many filters installed inside the dust collector, the dedusting filter blocks the airflow and the spraying direction of the compressed air should be sprayed close to the orthogonal direction of the filter cloth from the inside of the filter to the outside and evenly sprayed at a constant pressure on the whole surface of the filter cloth.

For this purpose, the cover on the top of the filter, which was opened by the gas intake of the blower, is supplied with compressed air for the exhaust of the filter, and closed by the force of the compressed air, and the shaft (B3) and the rotating bundle (B5) are fitted with a bearing in the middle. The compressed air supplied to the tube (B1) blows the filter medium from the inside of the filter to the outside through the hole to shake off the dust, and the repulsive force caused by the injection pressure rotates the tube and the rotating bundle.

Cartridge filter is smoothly exhausted, so the filter is not clogged with dust.

To remove fine dust, filters with dense and small filter media should be used.

Such a filter medium has a structure vulnerable to physical force.

Therefore, by applying the designed dust extraction device, it is possible to make dust collector for fine dust with excellent collection effect.

Representative drawing
Exhaust System Stereoscopic Diagram: Displays the air flow and operation principle
drawing
Fig. 1: Assembly diagram of the dust extraction device: shows the assembled state and the principle of operation
Fig. 2: Parts of the exhaust device Fig. 1: Display components of the injector
Fig. 3: Parts of the exhaust device Fig. 2: Mark the components of the cover part

During the dust collection process, when cover A1 is opened by the suction force of the blower, air C1 containing dust is attached to the filter outer filter cloth, and clean air C2 passing through the filter cloth is sucked into the blower and discharged into the atmosphere.

When the compressed air D1 within 60 psi is supplied to B3 for an intermittent period for 1 to 3 seconds, the compressed air D2 passing through the hole F1 pushes down the disk A3 to close the cover A1, and the compressed air D3 passing through the hole F2 is connected to the tube B1. The compressed air D4 passing through the two holes is blown out from the inside of the filter cloth and exhausts the dust attached to the outside of the filter cloth.

At this time, the hole F3 is drilled 15 degrees laterally from the center, and the compressed air D4 is rotated in the direction of the arrow E3 by the repulsive force of the force striking the filter cloth and sprays uniform compressed air all over the filter cloth.

1.dust collection of dust generated when cutting materials such as steel plates using laser or plasma

2. Dust collection of fine dust generated when welding metals

3. Even small amounts of poisons, such as poisons, have a great effect on the human body and the environment.

Dust collection of particulate matter

Claims (2)

When the dust collector is operated, the cover A1 is kept open by raising the airflow C1 from the outside of the filter by the suction force of the blower located above the filter, raising it in the airflow C2 direction, and lifting it in the upper direction E2. Compressed air (D1) is supplied to the hollow shaft (B3) for 1 to 3 seconds at an intermittent cycle, and part of the compressed air through the hole (F1) is pressed downward of the round membrane (A3) mounted on the cover (A1). A cover made of a round membrane cylinder tube, etc., which covers the upper part of the filter (A1) to block the aeration of the filter.
Except the compressed air used to press the cover in claim 1, the remaining compressed air is introduced into the tube (B1) through the hole (F2) is injected through the hole drilled on the side of the tube (B3) and the dust accumulated on the outside of the filter cloth Bet. A device such as a rotating bundle (B2) hollow shaft (B3) with a hole in the tube (B1), with a bearing inside, designed to rotate by a repulsive force against which the compressed air strikes the filter cloth, with the hole twisted 15 degrees from the center of the filter.

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