CN219128672U

CN219128672U - Paint mist filter

Info

Publication number: CN219128672U
Application number: CN202223421281.7U
Authority: CN
Inventors: 黎敦林
Original assignee: Suzhou Daichuang Filtration System Co ltd
Current assignee: Suzhou Daichuang Filtration System Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-06-06
Anticipated expiration: 2032-12-20

Abstract

The utility model relates to a paint mist filter, which comprises a box body and a plurality of filtering pieces; an air inlet and an air outlet are arranged on the box body; the filter piece is located inside the box, and the filter piece includes frame and inside casing, and the inside casing is connected inside the frame, all is provided with a plurality of filtration pores on frame and the inside casing, and the shape of frame and inside casing is different. The utility model has the characteristics of low processing cost, high filtering efficiency, large dust holding capacity, small wind resistance, excellent anti-saturation use performance, good durability and environmental protection, and can achieve good filtering effect.

Description

Paint mist filter

Technical Field

The utility model relates to the technical field of filtration, in particular to a paint mist filter.

Background

The effective paint adhesion utilization rate is generally only 30% -60% due to the physical characteristics of the paint spraying process, which means that up to 40% -70% of paint cannot be effectively adhered to a workpiece and becomes overspray fog to be dispersed into the air of a paint spray booth. In order to ensure the environmental protection requirement, the dispersed overspray fog is filtered by a paint fog filtering system and is treated by an organic waste gas concentration and removal procedure to reach the environmental protection emission standard before being discharged or recycled.

The overspray fog generated by the paint spraying station also has different existing forms due to different paint types adopted in the paint spraying procedure. The "undried paint mist" is a form of paint mist which remains in a high viscosity liquid state for a long period of time after the paint mist is formed, but which is thickened continuously and solidified to become a solid dry paint mist after a certain period of time.

For the undried paint mist, a 'combined fiber paint mist cotton paint mist filter' and a 'combined paper board baffling effect paint mist filter' are generally adopted to realize filtration, and the 'combined fiber paint mist cotton paint mist filter' is used for filtering and removing various undried paint mist by means of fiber paint mist cotton, but the filter has larger wind resistance, lower dust holding capacity and poorer durability, and the filter is manufactured by adopting chemical fibers (polyester short fibers, polypropylene short fibers and the like) or glass fibers with higher price, so that the manufacturing cost is higher; the combined paper board baffling effect paint mist filter is mainly divided into a combined V-shaped organ paper paint mist filter and a multi-layer net-shaped composite honeycomb paper baffling effect paint mist filter, wherein the combined V-shaped organ paper paint mist filter is easy to block and has low paint mist trapping efficiency, and the multi-layer net-shaped composite honeycomb paper baffling effect paint mist filter is low in anti-saturation usability and poor in durability. In addition, there is a "composite paint mist filter for absorbing lime powder", which requires that lime powder is blown onto the surface of a filter element in advance, the overspray paint mist in the air is filtered and absorbed by the lime powder, and after a period of time, the lime powder, which has absorbed a lot of paint on the surface of the filter, is blown off by back-blown air, but the filtration mode requires a lot of modification of a paint spray booth, has high cost, and needs to add lime powder grinding, screening, storage, treatment, conveying, separating devices and a large-scale air dust removing system, otherwise serious dust pollution is easily caused.

Therefore, the existing filter has poor filtering effect on the undried spray mist, and cannot meet the requirements of high efficiency, durability and environmental protection on the basis of low cost.

Disclosure of Invention

Therefore, the utility model aims to solve the technical problems that the filter for the undried spray mist in the prior art has poor filtering effect and cannot meet the requirements of high efficiency, durability and environmental protection on the basis of low cost.

In order to solve the technical problems, the utility model provides a paint mist filter, which comprises,

the box body is provided with an air inlet and an air outlet;

the filter comprises a plurality of filter elements, wherein the filter elements are positioned in the box body, the filter elements comprise an outer frame and an inner frame, the inner frame is connected in the outer frame, a plurality of filter holes are formed in the outer frame and the inner frame, and the shapes of the outer frame and the inner frame are different.

In one embodiment of the utility model, the outer frame is triangular and the inner frame is circular.

In one embodiment of the utility model, a plurality of filter elements are arranged in a plurality of rows, with adjacent rows of filter elements being staggered.

In one embodiment of the utility model, the outer frame and the inner frame are coaxially arranged.

In one embodiment of the utility model, the inside of the box body is also connected with a first positioning plate and a second positioning plate, the first positioning plate and the second positioning plate are respectively provided with a mounting hole, the mounting holes are in one-to-one correspondence with the filter pieces, one end of each filter piece is inserted into the corresponding mounting hole of the first positioning plate, and the other end of each filter piece is inserted into the corresponding mounting hole of the second positioning plate.

In one embodiment of the present utility model, the shape of the mounting hole is adapted to the shape of the outer frame.

In one embodiment of the present utility model, the filter holes on the outer frame and the inner frame are staggered.

In one embodiment of the utility model, the filter holes are round or square.

In one embodiment of the utility model, the inner frame is inscribed with the outer frame.

In one embodiment of the utility model, the outer and inner frames are plastic frames.

Compared with the prior art, the technical scheme of the utility model has the following advantages:

the paint mist filter has the characteristics of low processing cost, high filtering efficiency, large dust holding capacity, small wind resistance, excellent anti-saturation use performance, good durability and environmental protection, and realizes a good filtering effect.

Drawings

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings.

FIG. 1 is a schematic view of the construction of a paint mist filter of the present utility model;

FIG. 2 is a schematic view of the paint mist filter of FIG. 1 after the box is removed;

FIG. 3 is a schematic view of the filter element of FIG. 1;

FIG. 4 is a schematic view of the structure of the outer frame in FIG. 3;

FIG. 5 is a schematic view of the inner frame of FIG. 3;

FIG. 6 is a schematic view of the first positioning plate of FIG. 2;

FIG. 7 is a three-dimensional schematic view of the first positioning plate of FIG. 6;

FIG. 8 is a schematic view of the corner pad of FIG. 1;

description of the specification reference numerals: 1. a case; 11. an air inlet; 2. a first positioning plate; 21. a mounting hole; 3. a second positioning plate; 4. a filter; 41. an outer frame; 42. an inner frame; 43. filtering holes; 5. and (5) corner cushion blocks.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.

Referring to fig. 1 to 3, the present embodiment discloses a paint mist filter, comprising a case 1 and a plurality of filter elements 4;

an air inlet 11 and an air outlet are arranged on the box body 1;

the filter element 4 is located inside the case 1, the filter element 4 includes an outer frame 41 and an inner frame 42, the inner frame 42 is connected inside the outer frame 41, a plurality of filter holes 43 are formed in the outer frame 41 and the inner frame 42, and the outer frame 41 and the inner frame 42 are different in shape.

The non-dried spray paint mist entering the box body 1 from the air inlet 11 of the box body 1 is filtered by the filter element 4 and then discharged from the air outlet.

The paint mist filter with the structure adopts the structure that the outer frame 41 and the inner frame 42 which are in different shapes are nested, and a double-layer composite space grid structure is formed, so that when air flow enters the filter 4, high-speed baffling with a complex labyrinth flow passage can occur, and a large amount of undried paint mist contained in the air flow is trapped on the filter 4 under the combined action of centrifugal force, wall attaching effect, surface friction force and surface adsorption force, and is gradually solidified into continuously thickened solid paint slag layer by layer. These paint residues will grow and accumulate layer by layer in the wide spaces formed between the outer frame 41, the inner frame 42, and between the outer frame 41 and the inner frame 42, and between the different filter elements, and the surface of each layer of paint residues that has been solidified will quickly transform into a new paint mist collecting and growing substrate, so that the paint mist collecting capacity will not be increased. The whole structure does not need to be provided with filter cotton, and can achieve better filtering effect.

The above-mentioned filter element 4 adopts the nested structure of different shapes's frame 41 and inside casing 42 for filter element 4 has the more wide paint mist and piles up growth space, therefore, this kind of paint mist filter not only has very little initial windage, and even after long-term paint mist piles up growth, this kind of paint mist filter's windage increase still is very little, thereby ensured this kind of paint mist filter has powerful anti full performance, keep its high-efficient paint mist filtration entrapment ability continuously, thereby make it have super high durability.

In one embodiment, as shown in fig. 3-5, the outer frame 41 is triangular, and the inner frame 42 is circular, so as to achieve better filtering effect. The triangular outer frame 41 and the circular inner frame 42 are easy to manufacture and form, have space structural stability and are the optimal structural configuration design scheme.

In one embodiment, as shown in fig. 2, a plurality of filtering elements 4 are arranged in a plurality of rows, and two adjacent rows of filtering elements 4 are arranged in a staggered manner, so that the airflow can be baffled more times, and the filtering effect is improved.

In one embodiment, the outer frame 41 and the inner frame 42 are coaxially arranged.

In one embodiment, as shown in fig. 2, 6 and 7, the inside of the case 1 is further connected with a first positioning plate 2 and a second positioning plate 3, the first positioning plate 2 and the second positioning plate 3 are respectively provided with a mounting hole 21, the mounting holes 21 and the filter elements 4 are in one-to-one correspondence, one end of each filter element 4 is inserted into the corresponding mounting hole 21 of the first positioning plate 2, and the other end is inserted into the corresponding mounting hole 21 of the second positioning plate 3.

Through the setting of first locating plate 2 and second locating plate 3, can effectively realize the location of each filter 4, guarantee positioning stability and reliability.

In one embodiment, the shape of the mounting hole 21 is adapted to the shape of the outer frame 41. For example, when the outer frame 41 is triangular, the mounting holes 21 are also triangular to ensure the mating mounting of the two, ensuring the mounting stability of the two.

In one embodiment, the filter holes 43 on the outer frame 41 and the inner frame 42 are staggered to increase the baffling effect, thereby improving the filtering effect.

In one embodiment, the filter holes 43 are circular or square.

In one embodiment, the inner frame 42 is inscribed with the outer frame 41 to better ensure the stability of the connection of the outer frame 41 and the inner frame 42.

In one embodiment, the outer frame 41 and the inner frame 42 are made of plastic frames, which is convenient to process, low in cost and convenient to manufacture in a standardized manner.

In the concrete manufacturing process, the regenerated plastic can be adopted for processing, so that the cost is low, and the requirements of low carbon and environmental protection are met.

The commercial regenerated plastic net may be formed by bending and ultrasonic welding (or by plastic hot air welding, hot melt adhesive bonding, chemical adhesive bonding, etc.), thereby forming the nested structure of the outer frame 41 and the inner frame 42.

Further, the thickness of the outer frame 41 and the inner frame 42 is 2.5mm, and the size of the filter holes 43 is about 28mm.

In one embodiment, as shown in fig. 1 and 8, the case 1 is rectangular, and corner pads 5 are connected to the inner corners of the case 1 to ensure structural stability.

Further, the corner pads 5 are triangular.

The paint mist filter of the embodiment can achieve better filtering effect without arranging filter cotton; the filter is mainly used as a primary filter of heavy-load coarse-particle non-dried paint mist, and can effectively filter and trap a large amount of non-dried paint mist contained in various dry paint spray booth exhaust systems. The paint mist filter has a plurality of layers, and long baffling paths and full baffling effect, so that the paint mist filter has very high trapping efficiency for large-scale paint mist and medium-and small-scale paint mist.

According to the paint mist filter, the wind resistance is minimized, even if the paint mist filter reaches a saturated state, the filtering efficiency of the filter is not remarkably attenuated rapidly, the wind resistance is not increased rapidly and suddenly, the high-efficiency service life of the filter is greatly prolonged, the replacement frequency of a filter element is reduced to the greatest extent, and the filter material consumption is reduced and the manual maintenance cost is saved.

The paint mist filter is very suitable for being used as a primary filter, can be used alone, and can also be matched with other various high-precision filters, so that high-efficiency filtration is realized on a large amount of non-dried paint mist in an exhaust system of a dry paint spray booth.

In conclusion, the paint mist filter has high filtering efficiency, high paint capacity, low wind resistance, extremely strong anti-saturation use performance, extremely high durability and better environmental protection performance; the structure is simple, the processing is convenient, the low-cost regenerated material can be utilized for manufacturing, and the processing cost is greatly reduced; can be repeatedly used after regeneration and cleaning.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.

Claims

1. A paint mist filter, characterized in that: comprising the steps of (a) a step of,

the box body is provided with an air inlet and an air outlet;

2. A paint mist filter as set forth in claim 1, wherein: the outer frame is triangular, and the inner frame is circular.

3. A paint mist filter as set forth in claim 1, wherein: the plurality of filtering pieces are arranged in a plurality of rows, and two adjacent rows of filtering pieces are arranged in a staggered manner.

4. A paint mist filter as set forth in claim 1, wherein: the outer frame and the inner frame are coaxially arranged.

5. A paint mist filter as set forth in claim 1, wherein: the box is characterized in that a first locating plate and a second locating plate are further connected inside the box, mounting holes are formed in the first locating plate and the second locating plate, the mounting holes correspond to the filtering pieces one by one, one end of each filtering piece is inserted into the corresponding mounting hole of the first locating plate, and the other end of each filtering piece is inserted into the corresponding mounting hole of the second locating plate.

6. A paint mist filter as set forth in claim 5, wherein: the shape of the mounting hole is adapted to the shape of the outer frame.

7. A paint mist filter as set forth in claim 1, wherein: the filter holes on the outer frame and the inner frame are staggered.

8. A paint mist filter as set forth in claim 1, wherein: the filter holes are round or square.

9. A paint mist filter as set forth in claim 1, wherein: the inner frame is internally tangent with the outer frame.

10. A paint mist filter as set forth in claim 1, wherein: the outer frame and the inner frame are plastic frames.