CN216825475U

CN216825475U - Filtering tower for removing dust, mist and aerosol

Info

Publication number: CN216825475U
Application number: CN202122923325.5U
Authority: CN
Inventors: 顾建
Original assignee: Jiangsu Kewei Environmental Protection Technology Co ltd
Current assignee: Jiangsu Kewei Environmental Protection Technology Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-06-28
Anticipated expiration: 2031-11-26

Abstract

The application discloses filter tower of aerosol is removed in dust removal fog has dust removal pad, defogging pad, removes the aerosol pad in proper order from bottom to top in filter tower inside. The dust removal pad can be formed by combining and splicing two or more blocks with the same thickness, and splicing seams of the dust removal pad and the defogging pad are not on the same vertical plane; the aerosol removing pad can be formed by connecting a plurality of unit backing plates in sequence by connecting pieces, and the backing plate fibers can absorb and filter most of aerosol. Through three-layer filtering, dust, water mist, aerosol and the like are sequentially blocked, the direct emptying standard can be achieved, and the environment is basically not polluted any more.

Description

Filtering tower for removing dust, mist and aerosol

Technical Field

The present application relates to a filter device.

Background

The dedusting and demisting process is actually a process of comprehensive action of dust catching and coagulation mechanisms. However, because the particle sizes of the water mist and the respiratory dust are small, the trapping and coagulation effects are not enough to separate the combined substances from the air flow, and therefore, in order to effectively purify the air flow containing dust, measures for enhancing the condensation, sedimentation and separation are also needed in addition to the dust trapping technology.

And classified into a mechanical dust collector, an electric dust collector, a filter dust collector, a wash dust collector, etc. according to the trapping mechanism. The mechanical dust remover removes dust particles from the airflow by means of mechanical force, and has the advantages of simple structure, low equipment cost and operation cost, but low dust removal efficiency. The electrostatic precipitator utilizes electrostatic force to separate dust particles from air flow, and is usually classified according to plate type and tube type, and is characterized by small air flow resistance, high dust removal efficiency up to more than 99%, but high investment.

Aerosols (aerosol) are colloidal dispersions of small solid or liquid particles dispersed and suspended in a gaseous medium. The dispersion term is solid or liquid small particles with a size of 0.001-100 μm, and the dispersion medium is gas. Liquid aerosols are commonly referred to as mists, and solid aerosols are commonly referred to as mists. They have colloidal properties, such as: has the characteristics of scattering effect, electrophoresis, Brownian motion and the like on light. The solid and liquid particles in the atmosphere do Brownian motion, do not settle due to gravity, and can be suspended in the atmosphere for months and years.

The elimination of aerosol in atmosphere depends mainly on the precipitation of atmosphere, and the collision, agglomeration, polymerization and sedimentation of small particles. However, the dust, water mist and aerosol in the exhaust gas discharged in large quantities cannot be directly discharged into the atmosphere, and need to be purified by certain equipment.

Application number 201210418746.5 relates to a preparation method of a functional module for absorbing fog drops and VOC in air flow, belonging to the technical field of material preparation and environmental protection. The method comprises the steps of adopting a paper honeycomb as a base material, punching holes at different positions of adjacent partition plate layers, soaking a paper honeycomb module in slurry containing absorbent powder, taking out the paper honeycomb module and drying the paper honeycomb module to obtain a functional module for absorbing fog drops and VOC in air flow, and deflecting the air flow in the functional module to pass through, wherein the fog drops and VOC are captured by the absorbent on the inner wall of the paper honeycomb and the surface of the partition plate layers. The baffling structure of this patent can be used for reference.

Disclosure of Invention

Utility model purpose:

the filter tower for removing dust, mist and aerosol can filter dust, water mist and aerosol at the same time, and the adsorption sectional area can be flexibly adjusted.

The technical scheme is as follows:

the utility model provides a filter tower of aerosol is removed to dust removal fog, its shaft of the tower below has the waste gas entry, and shaft of the tower top has the gas outlet that purifies. The filter tower is internally provided with a dust removal pad, a defogging pad and an aerosol removal pad from bottom to top in sequence.

The dust removal pad can be formed by splicing two or more pieces with the same thickness so as to adapt to and fill different cross sections inside the filter tower; the fiber (e.g. woven metal fiber mesh, abrasion resistant) interstices of the dusting pad are capable of filtering and collecting most of the solid dust therein.

The defogging pad can be formed by splicing two or more pieces with the same thickness so as to adapt to and fill different cross sections inside the filter tower; the gaps of the fibers (such as a cotton-flax fiber pad with water absorption) of the defogging pad can absorb most of the water mist to form water drops.

The splicing seams of the dust removal pad and the defogging pad are not on the same vertical plane, so that the dust and the water mist can be prevented from leaking out of a seam at the same time.

The aerosol removal pad is formed by connecting a plurality of unit base plates in sequence through hinges or flexible connecting pieces, and the base plate fibers can absorb and filter most aerosols (can be made of polypropylene fibers or made of non-woven fabrics in a composite mode). The adsorption tower can be folded, unfolded or partially unfolded into a plurality of continuous bent shapes (such as M-shaped or V-shaped or N-shaped) so as to adapt to cover different cross-sectional areas, and the shape of the outermost backing plate is matched with the inner wall of the adsorption tower.

The joint of the connecting piece has good sealing effect and basically does not leak air, and the components leaking from the splicing seam of the dust removal pad or the defogging pad can not easily pass through the aerosol pad.

Has the beneficial effects that:

the device is connected to a tail gas source, and through three-layer filtering, the cleanliness of the finally obtained purified gas is high, dust cannot pollute the purified gas defogging pad, water mist cannot make the degasified sol pad lose activity, and the dust, the water mist, the aerosol and the like are sequentially blocked; can reach the standard of direct emptying without polluting the environment. And the expansion area of the aerosol removing pad can be changed according to the section size of the adsorption tower, so that the adsorption surface area is enlarged, the adsorption capacity is improved, and the treatment capacity is improved.

Drawings

FIG. 1 is a schematic longitudinal sectional structure of a filtration column of the present application.

In the figure, 1-inlet; 2-a dust removal pad; 3-demisting pad; 4-aerosol removal pad; 5-a connector; 6-purified gas outlet; 7-splicing seams.

Detailed Description

The filter tower for removing dust, mist and aerosol as shown in fig. 1 is provided with a filter tower, a waste gas inlet is arranged below a tower body, and a purified gas outlet is arranged above the tower body; the filter tower is internally provided with a dust removal pad, a defogging pad and an aerosol removal pad from bottom to top in sequence.

The dust removal pad is formed by splicing two blocks with the same thickness, and the defogging pad is formed by splicing two blocks with the same thickness; the concatenation seam of dust removal pad and defogging pad is not at same plumb plane, avoids tail gas not through the filtration absorption of two kinds of preceding mats and directly leaks the third kind of mats from the seam, leads to degasification sol pad to adsorb dust or water smoke and loses efficacy.

The aerosol removing pad is formed by sequentially connecting 4 unit backing plates by connecting pieces, can adjust the size of the unfolded area, covers the upper part of the aerosol removing pad and increases the adsorption and filtration area of the aerosol removing pad.

Claims

1. The utility model provides a filter tower of dust removal fog aerosol has filter tower, and the shaft below has waste gas entry, and the shaft top has the outlet of purifying gas, its characterized in that: a dust removal pad, a defogging pad and an aerosol removal pad are sequentially arranged in the filter tower from bottom to top; the dust removal pad be the metal fiber woven mesh that can filter most solid dust, the defogging pad for having absorbent cotton-flax fiber pad, the aerosol removal pad make or polypropylene fiber and non-woven fabrics complex make for the polypropylene fiber that can adsorb filtration aerosol.

2. The filter tower for dust-removing mist-removing aerosol as claimed in claim 1, wherein: the dust removal pad is formed by splicing two or more pieces with the same thickness, and the demisting pad is formed by splicing two or more pieces with the same thickness; the splicing seams of the dust removal pad and the defogging pad are not on the same vertical plane.

3. The filter tower for removing dust and mist and removing aerosol as claimed in claim 1 or 2, wherein: the aerosol removing pad is formed by connecting a plurality of unit backing plates in sequence by connecting pieces to form an M-shaped or V-shaped or N-shaped bent shape and covers the upper part of the aerosol removing pad.