Damage-resistant bag type dust collector

Abstract

The utility model provides a damage-resistant bag type dust collector, which relates to the field of bag type dust collectors and comprises a dust collector body and a filtering device. The filtering device comprises a plurality of filtering bag assemblies; the filter bag assembly comprises a filter bag body and a magnetic supporting net; the filter bag body is of a cylindrical structure; a cylindrical accommodating cavity is formed in the cylindrical structure of the filter bag body; the opening part of the cylindrical structure of the filter bag body faces upwards and faces the upper space; the cylindrical outer wall of the filter bag body is exposed in the lower space; the magnetic supporting net is of a tubular structure; the magnetic supporting net has magnetism; a plurality of meshes are formed in the magnetic supporting net; the meshes are communicated with the tubular inner side and the tubular outer side of the magnetic supporting net; the magnetic supporting net is detachably and fixedly mounted on the cylindrical outer wall of the filter bag body. According to the anti-damage bag type dust collector provided by the utility model, the problem that the service life of a filter bag of a bag type dust collector is short in the prior art is solved, and the service life of the filter bag can be prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of bag type dust collector, especially to the anti-damage bag type dust collector. BACKGROUND

[0002] Bag type dust collector is an air purification equipment widely used in industrial field, mainly used for removing particulate pollutants in air, when dust-containing gas passes through the filter chamber composed of filter bags (usually made of fiber material), particulate matter is captured on the surface of filter bag due to inertial impact, diffusion deposition, gravity settling and screening effect, thereby realizing filtration.

[0003] In the prior art, a bag type dust collector for preventing dew condensation influence is disclosed in Chinese patent application No. 202223193888.4, which illustrates the specific structure and working principle of the bag type dust collector.

[0004] In many industrial scenarios, such as metal processing, polishing and welding process links, metal particles will be generated. Compared with dust, wood chips and other particulate matters, metal particles have higher hardness and some have sharp edges. During the operation of the bag type dust collector, these metal particles will impact the filter bags made of fiber material at high speed. Due to the relatively soft material of the filter bag, the impact and scratching of the metal particles can easily cause physical damage to the filter bag, resulting in problems such as damage and perforation of the filter bag, which greatly shortens the service life of the filter bag. Frequent replacement of the filter bag not only increases the maintenance cost of the equipment, but also affects the continuity and stability of production, reduces production efficiency and has adverse effects on the economic benefits of enterprises. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the anti-damage bag type dust collector provided by the utility model can prolong the service life of the filter bag of the bag type dust collector.

[0006] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0007] The present invention provides a wear-resistant bag filter, comprising a dust collector body and a filter device; a cavity is formed within the dust collector body; the filter device is disposed within the cavity; the filter device divides the cavity inside the dust collector body into an independent upper space and a lower space; dust-laden gas can only flow between the upper space and the lower space through the filter device; the bottom of the lower space is provided with a dust hopper for collecting particulate matter and an inlet pipe communicating with the outside for introducing dust-laden gas; the upper space is provided with an outlet pipe for discharging purified gas; the filter device... The device includes multiple filter bag assemblies; each filter bag assembly includes a filter bag body and a magnetic support mesh; the filter bag body has a cylindrical structure; a cylindrical cavity is formed inside the cylindrical structure of the filter bag body; the opening of the cylindrical structure of the filter bag body faces upward and towards the upper space; the cylindrical outer wall of the filter bag body is exposed to the lower space; the magnetic support mesh has a tubular structure; the magnetic support mesh is magnetic; the magnetic support mesh has multiple mesh holes; the mesh holes connect the inner and outer sides of the tubular magnetic support mesh; the magnetic support mesh is detachably and fixedly installed on the cylindrical outer wall of the filter bag body.

[0008] The anti-damage bag filter provided by this utility model preferably has the tubular inner wall of the magnetic support mesh closely attached to the cylindrical outer wall of the filter bag body.

[0009] The anti-damage bag filter provided by this utility model preferably includes a magnetic support mesh comprising a magnetizable support mesh body and a permanent magnet block; the permanent magnet block is detachably connected and fixed to the support mesh body.

[0010] The anti-damage bag filter provided by this utility model preferably has the following features: the support mesh body is tubular; the permanent magnet block is annular; the permanent magnet block is magnetically attracted and fixed to the magnetic support mesh; and the inner circle of the annular structure of the permanent magnet block is fixed against the tubular outer wall of the magnetic support mesh.

[0011] The anti-damage bag filter provided by this utility model preferably has a polygonal mesh shape for the magnetic support mesh, and the side length of the polygonal mesh is between 0.5-2mm.

[0012] The anti-damage bag filter provided by this utility model preferably has a surface roughening treatment on the magnetic support mesh, with a surface roughness Ra of 3.2-6.3μm.

[0013] The above technical solution has the following advantages or beneficial effects:

[0014] The utility model provides an anti -damage bag formula dust catcher relates to bag formula dust catcher field, including dust catcher and filter device The cavity is formed in the dust catcher The filter device is arranged in the cavity The filter device divides the cavity in the dust catcher into the upper space and the lower space which are independent of each other Dust -laden gas can only flow between the upper space and the lower space through the filter device The lower space bottom is provided with the ash bucket for collecting particulate matter and the gas inlet pipe for introducing dust -laden gas which communicates with outside The upper space is provided with the gas outlet pipe for discharging the gas after purification The filter device includes a plurality of filter bag assemblies The filter bag assembly includes filter bag body and magnetic support net The filter bag body is cylindrical structure The cylindrical structure of filter bag body forms the cavity The mouth of the cylindrical structure of filter bag body is upward and towards the upper space The cylindrical outer wall of filter bag body is exposed to the lower space The magnetic support net is tubular structure The magnetic support net has magnetism The magnetic support net has a plurality of mesh holes The mesh hole communicates the tubular inside and outside of the magnetic support net The magnetic support net can be detachably fixed and installed on the cylindrical outer wall of filter bag body The anti -damage bag formula dust catcher provided by the utility model solves the problem of low service life of filter bag of bag formula dust catcher in the prior art, and can prolong the service life of filter bag. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model and its features, shape and advantages will become more apparent by reading the detailed description of the non - limiting embodiments with reference to the following drawings. The same reference signs indicate the same parts throughout the drawings. The drawings are not necessarily drawn to scale, the emphasis is on showing the main idea of the utility model.

[0016] Fig. 1 It is the whole structure schematic diagram of anti -damage bag formula dust catcher provided by the utility model embodiment 1.

[0017] Fig. 2 It is the filter bag assembly structure schematic diagram of anti -damage bag formula dust catcher provided by the utility model embodiment 1. DETAILED DESCRIPTION

[0018] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. It should be noted that the terms used in the utility model are only for describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application.

[0019] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without inventive effort are within the protection scope of the present utility model.

[0020] Example 1:

[0021] The damage-resistant bag filter provided in Embodiment 1 of this utility model, such as Figs. 1-2 As shown, the dust collector includes a dust collector body 1 and a filter device 2. A cavity is formed inside the dust collector body 1. The filter device 2 is disposed within the cavity. The filter device 2 divides the cavity inside the dust collector body 1 into an independent upper space 11 and a lower space 12. Dust-laden gas can only flow between the upper space 11 and the lower space 12 through the filter device 2. The bottom of the lower space 12 is equipped with a dust hopper for collecting particulate matter and an inlet pipe 13 connected to the outside for introducing dust-laden gas. The upper space 11 is equipped with an outlet pipe 14 for discharging purified gas. The filter device 2 includes multiple filter bag assemblies 21. Component 21 includes a filter bag body 211 and a magnetic support mesh 212; the filter bag body 211 has a cylindrical structure; a cylindrical cavity is formed inside the cylindrical structure of the filter bag body 211; the opening of the cylindrical structure of the filter bag body 211 faces upward and towards the upper space 11; the cylindrical outer wall of the filter bag body 211 is exposed to the lower space 12; the magnetic support mesh 212 has a tubular structure; the magnetic support mesh 212 is magnetic; the magnetic support mesh 212 has multiple mesh holes; the mesh holes connect the inner and outer sides of the tubular magnetic support mesh 212; the magnetic support mesh 212 is detachably and fixedly installed on the cylindrical outer wall of the filter bag body 211.

[0022] In actual operation, the gas to be filtered enters the lower space 12 through the inlet pipe 13, then passes through each filter bag body 211 into the upper space 11, and finally leaves the cavity of the dust collector body 1 through the outlet pipe 14. Unlike the prior art, this embodiment sets a magnetic support mesh 212 on the outside of the filter bag body 211. The dust-laden gas can pass through the mesh of the magnetic support mesh 212 and then be filtered by the filter bag body 211. The magnetic support mesh 212 can apply force to the metal particulate impurities in the gas, so that the metal particulate impurities are slowed down. Some metal particulate impurities can be directly adsorbed onto the magnetic support mesh 212. In this way, the direct impact of metal particles on the filter bag body 211 is effectively avoided or slowed down, preventing the filter bag body 211 from being scratched by metal particles with sharp edges, thereby extending the service life of the filter bag body 211.

[0023] The anti-damage bag type dust collector provided by the embodiment 1 of the utility model solves the problem of low service life of filter bag of the bag type dust collector in the prior art, and can prolong the service life of the filter bag.

[0024] As a preferred solution, in the embodiment, the tubular inner wall of the magnetic support net 212 closely abuts the cylindrical outer wall of the filter bag body 211. The close abutting manner can more effectively support the filter bag body 211, ensure that the filter bag body 211 always maintains a good shape and structure during the filtering process, improve the stability of the filter bag body 211, and avoid affecting the filtering effect due to the shape change of the filter bag body 211.

[0025] As a preferred solution, in the embodiment, the magnetic support net 212 includes a support net body 2121 that can be magnetized and a permanent magnet block 2122; the permanent magnet block 2122 is detachably connected and fixed with the support net body 2121. When cleaning the magnetic support net 212, the separation of the permanent magnet block 2122 from the support net body 2121 can facilitate the separation of the metal particles adsorbed on the support net body 2121; when stronger magnetism is needed to better adsorb the metal particles, a permanent magnet block 2122 with stronger magnetism can be replaced, or the number of permanent magnet blocks 2122 can be increased (one permanent magnet block 2122 is preferably used in the embodiment); the permanent magnet block 2122 preferably adopts a ring structure in the embodiment, and the ring-shaped permanent magnet block 2122 can be sleeved outside the tubular support net body 2121, and the permanent magnet block 2122 is magnetically adsorbed on the support net body 2121.

[0026] To balance the support performance and the air permeability, as a preferred solution, in the embodiment, the mesh shape of the magnetic support net 212 is a polygon, and the side length of the polygonal mesh is between 0.5-2mm.

[0027] As a preferred solution, in the embodiment, the surface of the magnetic support net 212 is roughened, and the surface roughness Ra is 3.2-6.3μm. The roughened surface of the magnetic support net 212 can increase the friction between the magnetic support net 212 and the filter bag body 211, so that the magnetic support net 212 is more firmly fixed to the outer wall of the filter bag body 211, reduces the relative sliding between the two, and further enhances the protection of the filter bag body 211. At the same time, the rough surface can also adsorb some large particle pollutants to some extent, reducing the filtering burden of the filter bag body 211.

[0028] In summary, the utility model provides an anti - damage bag type dust collector relates to bag type dust collector field, including dust collector and filter device, the cavity is formed in the dust collector, the filter device is arranged in the cavity, the filter device divides the cavity in the dust collector interior into the upper space and the lower space of independent each other, dust - containing gas only can flow between the upper space and the lower space through the filter device, the bottom of lower space is provided with the ash bucket for collecting particulate matter and the gas inlet pipe for introducing dust - containing gas with outside communication, the upper space is provided with the gas outlet pipe for discharging the gas after purification, the filter device includes a plurality of filter bag assemblies, the filter bag assembly includes filter bag body and magnetic support net, the filter bag body is the barrel structure, the cavity is formed in the barrel structure inside of filter bag body, the mouth part of barrel structure of filter bag body is upward and to the upper space, the barrel outer wall of filter bag body is exposed to the lower space, the magnetic support net is the tubular structure, the magnetic support net has magnetism, the magnetic support net has a plurality of mesh, the mesh communicates the tubular inside and outside of magnetic support net, the magnetic support net can detachable fixed mounting in the barrel outer wall of filter bag body, the utility model provides an anti - damage bag type dust collector, solved the problem of low service life of filter bag of bag type dust collector in the prior art, can prolong the service life of filter bag.

[0029] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, are all included in the patent protection range of the utility model.

Claims

1. A bag-type dust collector with anti-damage function, comprising a dust collector body and a filter device; a cavity is formed in the dust collector body; the filter device is arranged in the cavity; the filter device separates the cavity inside the dust collector body into an upper space and a lower space which are independent of each other; dust-containing gas can only flow between the upper space and the lower space through the filter device; a bottom of the lower space is provided with a dust hopper for collecting particulate matters and an air inlet pipe for introducing dust-containing gas which communicates with the outside; the upper space is provided with an air outlet pipe for discharging purified gas; Characterized in that, the filter device comprises a plurality of filter bag assemblies; the filter bag assembly comprises a filter bag body and a magnetic support net; the filter bag body has a cylindrical structure; a cylindrical cavity is formed inside the cylindrical structure of the filter bag body; an opening of the cylindrical structure of the filter bag body faces upward and toward the upper space; a cylindrical outer wall of the filter bag body is exposed to the lower space; the magnetic support net has a tubular structure; the magnetic support net has magnetism; the magnetic support net has a plurality of mesh holes; the mesh holes communicate the inside and outside of the tubular structure of the magnetic support net; the magnetic support net is detachably and fixedly installed on the cylindrical outer wall of the filter bag body.

2. The attrition bag precipitator of claim 1, wherein a tubular inner wall of the magnetic support net closely abuts against the cylindrical outer wall of the filter bag body.

3. The attrition bag precipitator of claim 1 wherein, the magnetic support net comprises a support net body which can be magnetized and a plurality of permanent magnet blocks; the permanent magnet blocks are detachably connected and fixed with the support net body.

4. The attrition bag precipitator of claim 3 wherein, the support net body has a tubular structure; the permanent magnet blocks have an annular structure; the permanent magnet blocks are magnetically and adsorptively fixed with the magnetic support net; an inner circle of the annular structure of the permanent magnet blocks abuts against and fixes the tubular outer wall of the magnetic support net.

5. The attrition bag precipitator of claim 1 wherein, the mesh holes of the magnetic support net have a polygonal shape, and the side length of the polygonal mesh holes is between 0.5-2mm.

6. The attrition bag precipitator of claim 1 wherein, the surface of the magnetic support net is roughened, and the surface roughness Ra is 3.2-6.3μm.

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