CN116585833A - Dry paint mist filter - Google Patents

Dry paint mist filter Download PDF

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Publication number
CN116585833A
CN116585833A CN202310534091.6A CN202310534091A CN116585833A CN 116585833 A CN116585833 A CN 116585833A CN 202310534091 A CN202310534091 A CN 202310534091A CN 116585833 A CN116585833 A CN 116585833A
Authority
CN
China
Prior art keywords
filter
separating
elements
air flow
paint mist
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310534091.6A
Other languages
Chinese (zh)
Inventor
朱晓玲
吴鸣芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangyin Jingbian Industrial Automation Equipment Co ltd
Wuxi Yujing Purifying Technology Co ltd
Original Assignee
Jiangyin Jingbian Industrial Automation Equipment Co ltd
Wuxi Yujing Purifying Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangyin Jingbian Industrial Automation Equipment Co ltd, Wuxi Yujing Purifying Technology Co ltd filed Critical Jiangyin Jingbian Industrial Automation Equipment Co ltd
Priority to CN202310534091.6A priority Critical patent/CN116585833A/en
Publication of CN116585833A publication Critical patent/CN116585833A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
    • B01D45/06—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by reversal of direction of flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Separating Particles In Gases By Inertia (AREA)

Abstract

The invention discloses a dry paint mist filter, wherein an air flow channel passing through air flow is formed in a shell, and a filter assembly and a filter backboard are arranged in the air flow channel along the air flow direction; the filter assembly comprises filter units which are arranged in parallel at equal intervals along the airflow direction, wherein each filter unit comprises a plurality of separation elements A which are arranged at equal intervals, the adjacent separation elements A are arranged in a V shape, and a venturi structure is formed between the separation elements A; the filtering backboard comprises a plurality of separating elements B which are arranged at intervals in a staggered way, the separating elements B and the separating elements A are arranged in an angle offset manner in the horizontal direction, and the separating elements A and the separating elements B of the filtering units in the last row form a venturi structure; paint mist in the air flow is trapped by the separating element A and the separating element B through the Venturi structure. Through the mode, the dry paint mist filter provided by the invention has the advantages that the venturi effect is generated through the adsorption pipes filled with paint which are arranged in a V shape, so that the back of the adsorption pipe can collect oil mist, and the oil mist collection amount is increased.

Description

Dry paint mist filter
Technical Field
The invention relates to the field of industrial coating, in particular to a dry paint mist filter.
Background
The conventional coating waste gas separation technology is mainly divided into dry type and wet type. The traditional dry paint spraying system mainly adopts a form of paint mist adsorption felt, so that local saturation of a filtering material is easy to cause blockage, the capturing and containing capacity of paint particles is limited, and the paint mist adsorption felt needs to be replaced frequently. Although the traditional wet venturi or wet water curtain cabinet technology can realize continuous separation of paint mist and can meet the requirement of large-batch continuous operation, the technology can generate a large amount of waste gas, waste water and waste liquid, needs to consume a large amount of fresh constant temperature and humidity air and has high energy consumption.
Patent CN103608124B discloses a separating device, which is provided with staggered filter elements, and forms a progressive front adsorption structure under the condition that the interval between the filter elements is gradually reduced, and the paint mist is adsorbed and separated by a mass inertia principle. In this patent, the surface of the filter element facing the air flow has a good adsorption effect, and the back surface facing the air flow or the side surface through which the air flow flows is difficult to adsorb paint mist, so that the adsorption surface utilization rate of the filter element is not high, the surface of the filter element cannot be comprehensively utilized for adsorption, and the adsorption effect is further affected.
Disclosure of Invention
The invention mainly solves the technical problem of providing a dry paint mist filter, which is characterized in that a venturi effect is generated by using adsorption pipes filled with paint, which are arranged in a V shape, so that the back of the adsorption pipe can collect oil mist and the oil mist collection amount is increased.
In order to solve the technical problems, the invention adopts a technical scheme that: the dry paint mist filter comprises a shell, wherein an air flow channel passing through air flow is formed in the shell, and a filter assembly and a filter backboard are arranged in the air flow channel along the air flow direction; the filter assembly comprises filter units which are arranged in parallel at equal intervals along the airflow direction, wherein each filter unit comprises a plurality of separation elements A which are arranged at equal intervals, the adjacent separation elements A are arranged in a V shape, and a venturi structure is formed between the separation elements A; the filtering backboard comprises a plurality of separating elements B which are arranged at intervals in a staggered mode, the separating elements B and the separating elements A are arranged in an angle offset mode in the horizontal direction, and the separating elements A and the separating elements B of the filtering units in the last row form a venturi structure; paint mist in the air flow is trapped by the separating element A and the separating element B through a Venturi structure.
In a preferred embodiment of the present invention, paint mist in the air flow passes through the separating element a and the separating element B and is trapped by the front surfaces of the separating element a and the separating element B, and paint mist in the air flow passes through the venturi structure and is trapped by the back surface of the separating element a.
In a preferred embodiment of the invention, the separating element B is located at the rear between two adjacent separating elements a.
In a preferred embodiment of the invention, the separating elements a and B are rectangular in cross section.
In a preferred embodiment of the present invention, the long sides of the adjacent separating elements a enclose a large venturi structure, so as to increase the oil mist trapping amount on the surface where the long sides of the separating elements a are located, and the short sides of the adjacent separating elements a enclose a small venturi structure, so as to increase the oil mist trapping amount on the surface where the short sides of the separating elements a are located.
In a preferred embodiment of the present invention, the large venturi structures and the small venturi structures are alternately arranged at intervals in the direction of the air flow.
In a preferred embodiment of the invention, the separating elements a and B are arranged vertically and are bypassed by a gas flow flowing in a horizontal direction.
In a preferred embodiment of the present invention, the separation element is an adsorption tube having a mesh-like opening, and the adsorption tube is filled with an adsorption material.
In a preferred embodiment of the present invention, the housing is provided with paint-blocking cotton, and the paint-blocking cotton is located at the left and right sides of the filter assembly and is disposed at a gap with the filter assembly.
In a preferred embodiment of the invention, the filter back plate is removably mounted to the housing at the outlet location.
The beneficial effects of the invention are as follows: according to the dry paint mist filter, the venturi effect is generated through the adsorption pipes filled with paint and the filtering back plate which are arranged in a V shape, and the adsorption pipes are filled with oil mist by matching with the replaceable filtering back plate, so that the back of the adsorption pipes forming a venturi structure can also collect oil mist, and the oil mist collection amount is increased.
According to the dry paint mist filter, the plurality of groups of filter units are matched with the paint blocking cotton at two sides, and the rectangular adsorption tube can increase the adsorption area, so that more oil mist can be trapped.
According to the dry paint mist filter, the filter back plate capable of being replaced quickly is not broken and broken under the bearing pressure difference of 1200pa, so that operators can replace quickly, and the production and operation cost is reduced.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
FIG. 1 is a schematic view of a dry paint mist filter according to a preferred embodiment of the present invention;
FIG. 2 is a cross-sectional view of a dry paint mist filter;
FIG. 3 is a schematic view of another preferred embodiment of a dry paint mist filter according to the present invention;
the components in the drawings are marked as follows: 1. the device comprises a shell, 2, a filter assembly, 21, a filter unit, 3, a filter backboard, 4, a venturi structure, 5, paint-blocking cotton, a separation element A and a separation element B.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below. The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure, and are not intended to limit the scope of the invention, since any modification, variation in proportions, or adjustment of the size, etc. of the structures, proportions, etc. should be considered as falling within the spirit and scope of the invention, without affecting the effect or achievement of the objective. Also, the terms "upper", "lower", "left", "right", "middle", and the like are used herein for descriptive purposes only and are not intended to limit the scope of the invention for modification or adjustment of the relative relationships thereof, as they are also considered within the scope of the invention without substantial modification to the technical context.
Referring to fig. 1, a dry paint mist filter includes a housing 1, an air flow channel passing through air flow is formed in the housing 1, and a filter assembly 2 and a filter back plate 3 are disposed in the air flow channel along the air flow direction. An inlet is formed in the upper portion of the shell 1, and the filtering backboard 3 is detachably arranged at the outlet portion of the shell 1. Air with oil mist enters an air flow channel of the shell 1 through an inlet, and the air flows along the air flow channel and is discharged from an outlet part of the shell 1 after passing through the filter assembly 2 and the filter backboard 3 in sequence to trap the oil mist.
As shown in fig. 2, the filter assembly 2 includes filter units 21 arranged in parallel at equal intervals in the air flow direction, the filter units 21 include a plurality of separation elements a arranged at equal intervals, adjacent separation elements a are arranged in a V-shape, and a venturi structure 4 is formed between the separation elements a. The number of the filtering units 21 is 6, and the filtering units are arranged in parallel at equal intervals. Each filter unit 21 includes 6 separation elements a, and adjacent separation elements a are arranged in a V-shape, so that an overall shape approximates to a shape of a plurality of fold lines of V-shapes arranged in sequence, and a total of 36 separation elements a. The centers of the separation elements a in the same filter unit 21 are equally spaced. The centers of the separation elements a of adjacent filter units 21 are also arranged at equal intervals, and the cross section of the separation element a is rectangular. Gaps for the passage of air flow are provided between the front-rear or left-right adjacent separating elements a.
The long sides of the adjacent separating elements A are surrounded into a large Venturi structure, so that the oil mist trapping amount on the surface where the long sides of the separating elements A are positioned is increased. The short sides of the adjacent separating elements A enclose a small Venturi structure, so that the oil mist trapping amount on the surface where the short sides of the separating elements A are positioned is increased. When the airflow is in the direction shown in fig. 2, the airflow direction is the direction of the airflow channel, after the airflow flows through the separating element a, the front surface of the separating element a starts to collect oil mist, the airflow continues to enter the small venturi structure through the gap between the separating elements a, the airflow enters the rear large venturi structure after being accelerated by the small venturi structure, after the front surface of the separating element a is full of the oil mist, the venturi effect occurs due to the inertia effect of the oil mist, the flow path of the airflow in the large venturi structure changes, part of the airflow flows to the back surface of the separating element a, and therefore the oil mist in the large venturi structure can be collected by the back surface of the separating element a, and the back part of the adsorption tube can also contain paint. The square venturi structure 4 has a larger space in which oil mist can be trapped more effectively due to mass inertia. The large venturi structures and the small venturi structures are alternately arranged in the airflow flowing direction, and the airflow accelerating and adsorbing effects can be repeatedly formed.
The filtering backboard 3 comprises a plurality of separation elements B which are arranged at intervals in a staggered mode, and the separation elements B and the separation elements A are arranged in an angle offset mode in the horizontal direction. The separating elements B are positioned at the rear part between two adjacent separating elements a, the number of the separating elements B is 5, and the cross section of the separating elements B is rectangular. The separating elements a and B of the last row of filter units 21 form a venturi structure 4. The venturi effect is also generated between the separating element B and the separating element A of the last row, so that all separating elements can fully capture paint mist.
The filter backboard 3 adopts a replaceable structure, is subjected to pressure difference 1200pa, has no breakage and fracture, can quickly complete replacement in a short time, and reduces production and operation costs.
The separation element a and the separation element B are vertically arranged and are bypassed by a gas flow flowing in a horizontal direction. The separation elements A and B are adsorption tubes with net openings, and adsorption materials are filled in the adsorption tubes. The separating element A and the separating element B are arranged vertically, so that the air flow can effectively flow across the surfaces of the separating element A and the separating element B when flowing along the air flow channel. The materials in the adsorbent tube may be selected adaptively according to various paint properties, including cellulosic materials, cardboard materials, honeycomb cardboard, or other existing adsorbent materials, and will not be described in detail herein.
Be provided with on the shell 1 and hinder the cotton 5 of lacquer, hinder the cotton 5 of lacquer and be located filter component 2 left and right sides to be the clearance setting with filter component 2. The shell 1 is a plastic outer plate, and the 5 positions of the paint-resistant cotton are matched to provide better tightness and stability.
The following are experimental data:
operating state Weight of filter box Pressure difference of filter cartridge Differential pressure of filter bag
New 57kg 170pa 137pa
First replacement of back plate 116kg 260pa 380pa
Second replacement of back plate 175kg 482pa 86pa
Offline 196kg 1200pa 95pa
Pressure difference test data before first back plate replacement (E-cube fan only)
In example 2, as shown in fig. 3, 6 filter units are arranged in parallel at equal intervals. The first three filter units consist of 5 separation elements A, and the last three filter units consist of 6 separation elements A. It is also possible to form a venturi structure 4 similar to that of embodiment 1, thereby achieving the effect of trapping oil mist on the back surface of the separation element a.
In the embodiment 1 and the embodiment 2, the separating elements with square or rectangular cross sections and other structures can be used to form the same or similar venturi structure 4, and the effect of trapping oil mist on the back can be achieved, which is not illustrated in the drawings.
Compared with the prior art, the dry paint mist filter provided by the invention has the advantages that the venturi effect is generated through the V-shaped arranged adsorption pipes filled with paint, so that the back of the adsorption pipes can collect oil mist, and the oil mist collection amount is increased.
The invention and its embodiments have been described above by way of illustration and not limitation, and the invention is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.

Claims (10)

1. A dry paint mist filter comprising a housing having an air flow passage formed therein for passing an air flow, characterized in that: a filter assembly and a filter backboard are arranged in the airflow channel along the airflow direction;
the filter assembly comprises filter units which are arranged in parallel at equal intervals along the airflow direction, wherein each filter unit comprises a plurality of separation elements A which are arranged at equal intervals, the adjacent separation elements A are arranged in a V shape, and a venturi structure is formed between the separation elements A;
the filtering backboard comprises a plurality of separating elements B which are arranged at intervals in a staggered mode, the separating elements B and the separating elements A are arranged in an angle offset mode in the horizontal direction, and the separating elements A and the separating elements B of the filtering units in the last row form a venturi structure;
paint mist in the air flow is trapped by the separating element A and the separating element B through a Venturi structure.
2. The dry paint mist filter of claim 1 wherein paint mist in the air flow is trapped by the front sides of the separating element a and the separating element B after passing through the separating element a and the separating element B, and paint mist in the air flow is trapped by the back side of the separating element a after passing through the venturi structure.
3. The dry paint mist filter of claim 2, wherein the separating element B is located at the rear between two adjacent separating elements a.
4. A dry paint mist filter as set forth in claim 3, wherein the separating element a and the separating element B are rectangular in cross section.
5. The dry paint mist filter of claim 4, wherein the long sides of adjacent separating elements a define a large venturi structure, thereby increasing the amount of oil mist trapped on the surface of the long sides of the separating elements a, and the short sides of adjacent separating elements a define a small venturi structure, thereby increasing the amount of oil mist trapped on the surface of the short sides of the separating elements a.
6. The dry paint mist filter of claim 5, wherein the large venturi structures and the small venturi structures are alternately arranged at intervals in the air flow direction.
7. The dry paint mist filter of any one of claims 1 to 6, wherein the separating element a and the separating element B are arranged vertically and are bypassed by an air flow flowing in a horizontal direction.
8. The dry paint mist filter of claim 7, wherein the separation element is an adsorption tube having a mesh-like opening, and wherein the adsorption tube is filled with an adsorption material.
9. The dry paint mist filter of claim 1, wherein paint blocking cotton is disposed on the housing, and the paint blocking cotton is disposed on the left and right sides of the filter assembly and is disposed in a gap with the filter assembly.
10. The dry paint mist filter of claim 9, wherein the filter back plate is removably mounted to the housing at the outlet location.
CN202310534091.6A 2023-05-12 2023-05-12 Dry paint mist filter Pending CN116585833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310534091.6A CN116585833A (en) 2023-05-12 2023-05-12 Dry paint mist filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310534091.6A CN116585833A (en) 2023-05-12 2023-05-12 Dry paint mist filter

Publications (1)

Publication Number Publication Date
CN116585833A true CN116585833A (en) 2023-08-15

Family

ID=87610904

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310534091.6A Pending CN116585833A (en) 2023-05-12 2023-05-12 Dry paint mist filter

Country Status (1)

Country Link
CN (1) CN116585833A (en)

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