Cloth cylinder dust filter device matched with grain processing production

Abstract

The invention relates to a cloth cylinder dust filter device, in particular to a cloth cylinder dust filter device matched with grain processing and production, a protective filter screen is mounted on the inner side in the cloth cylinder dust filter device, a fixed ring plate is fixedly arranged at one end of the protective filter screen, and the fixed ring plate is fixedly connected with a supporting top disc through a screw; detachable arrangement is carried out, so that follow-up work such as replacement and maintenance is facilitated; dust-containing waste gas enters from the bottom port of the cloth cylinder dust filter device and then is filtered through the filter cloth cylinder bag main body in the cloth cylinder dust filter device, the filtered gas is discharged outwards through the filter cloth cylinder bag main body, and air sprayed by the spraying and blowing pipe blows and cleans impurities on the protective filter screen and the filter cloth cylinder bag main body. At the moment, the blown filter cloth barrel bag main body expands outwards, and in the outward expansion process, the auxiliary top strip impacts the filter cloth barrel bag main body, so that the auxiliary top strip plays a positive role in cleaning impurities adhered to the inner side wall of the filter cloth barrel bag main body and even bound to the inner side wall of the filter cloth barrel bag main body.

Description

Technical Field

[0001] The present invention relates to a cloth cylinder dust filter device, and particularly to a cloth cylinder dust filter device adapted to grain processing production. Background Art

[0002] A Chinese patent document with the publication number CN215462738U discloses an efficient pulse cloth cylinder dust filter for grain processing. Its solution includes a box body, a moving mechanism, and a fixing mechanism. Four support legs are provided at the bottom end of the box body, a hopper is provided at the bottom end of the box body, an air inlet pipe opening is provided on one side of the outer wall of the box body, and a plurality of blowing pipes are provided inside the box body. Its solution realizes opening the box door by setting an extension slot frame, a fixing slot frame, a T-shaped rail, a T-shaped slot, a fixing seat, a rotating shaft, and an extension slot. Then, rotate the extension slot frame until it is in the same straight line as the fixing slot frame. At the same time, one end of the extension slot is docked with one end of the T-shaped slot. Pull the fixing plate, so that the T-shaped rail is limited to move along the inner wall of the T-shaped slot and then along the inner wall of the extension slot, so that the fixing plate is moved out of the box body while moving a plurality of filter cloth cylinders out of the box body, thus facilitating the replacement and cleaning of the filter cloth cylinders.

[0003] During the actual working process, the dust-containing gas enters from the bottom air inlet of the dust filter device, and then the impurities are filtered and separated by the filter cloth cylinders inside the device. The gas after that flows out from the top of the device. A corresponding blowing pipe is connected to the top of the filter cloth cylinder. That is, after the filtering work is completed, gas is blown into the filter cloth cylinder through the blowing pipe. At this time, the blown gas blows off the impurities adhered and filtered on the inner side of the filter cloth cylinder, so that the impurities fall and accumulate in the hopper at the bottom of the device, and finally are discharged through the ash discharge device; during the grain processing process, there may be waste such as spiny small shells in the incoming dust-containing gas. After being filtered by the cloth bags in the filter cloth cylinder, they will adhere to the cloth bags. When blown by the blowing pipe, some of the spiny small shells or waste will be blown off, and it is also possible to be pierced into the cloth bags under the action of wind, and the blown-up cloth bags are more likely to be pierced into them. After long-term work, this not only affects the filtering and separation of the cloth bags, but may also cause damage to the cloth bags, and corresponding improvements and optimizations are needed.

[0004] Therefore, the present invention proposes a cloth cylinder dust filter device adapted to grain processing production to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a cloth cylinder dust filter device adapted to grain processing production to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solutions: a cloth tube dust filter device adapted to grain processing production, including a support top plate, a support bottom plate, and a filter cloth tube bag body. The top end of the filter cloth tube bag body is fixedly connected to the support top plate, and the bottom end of the filter cloth tube bag body is fixedly connected to the support bottom plate. A connection sealing ring body is provided on the top of the support top plate;

[0007] An annular auxiliary slope is fixedly provided on the support bottom plate, and the annular auxiliary slope is arranged on the side of the filter cloth tube bag body. A protective filter wire mesh is arranged in the inner cavity of the filter cloth tube bag body, and an auxiliary component is arranged on the outer side of the filter cloth tube bag body.

[0008] Preferably, the protective filter wire mesh is arranged as a cylindrical shape, and a fixed ring plate is fixedly provided at one end of the protective filter wire mesh. First installation threaded grooves are symmetrically arranged on the fixed ring plate.

[0009] Preferably, support vertical bars are symmetrically and fixedly arranged on the inner side of the protective filter wire mesh. A limit chute body is arranged in the support vertical bars, and one end of the limit chute body extends to the end face position of one end of the support vertical bar. The limit chute body is connected to a filter auxiliary fitting.

[0010] Preferably, the fixed ring plate is fixedly connected to the support top plate by screws, and installation holes corresponding to the first installation threaded grooves are arranged on the support top plate.

[0011] Preferably, the other end of the protective filter wire mesh extends to the mouth position of the support bottom plate, and the port of the protective filter wire mesh corresponds to the position where the annular auxiliary slope is arranged.

[0012] Preferably, the auxiliary component includes a first support protective wire mesh cover, a second support protective wire mesh cover, an arc-shaped mounting plate member, a second installation threaded groove, and an auxiliary top bar; arc-shaped mounting plate members are symmetrically and fixedly arranged at both ends of the first support protective wire mesh cover, and arc-shaped mounting plate members are also symmetrically and fixedly arranged at both ends of the second support protective wire mesh cover. Second installation threaded grooves are arranged on the arc-shaped mounting plate members.

[0013] Preferably, the first support protective wire mesh cover and the second support protective wire mesh cover are arranged in corresponding positions and have the same number of sets. The first support protective wire mesh cover and the second support protective wire mesh cover are butted to form a protective wire mesh cylinder, that is, the arc-shaped mounting plate members at both ends of the first support protective wire mesh cover and the second support protective wire mesh cover are butted to form two mounting ring bodies. Auxiliary top bars are equidistantly arranged on the inner sides of the first support protective wire mesh cover and the second support protective wire mesh cover.

[0014] Preferably, the mounting ring body at one end of the protective wire mesh cylinder is fixedly connected to the supporting top plate by screws, and the mounting ring body at the other end of the protective wire mesh cylinder is fixedly connected to the supporting bottom plate by screws. The protective wire mesh cylinder is arranged on the outside of the filter cloth cylinder bag body, and mounting holes corresponding to the second mounting thread grooves are provided on both the supporting top plate and the supporting bottom plate.

[0015] Preferably, the filtering auxiliary fitting includes a bearing ring body, a limiting slider, an annular clamping groove body, an annular communication groove, a connecting plate member, an annular connecting strip, an elastic clamping ring body and a cleaning component; limiting sliders are symmetrically and fixedly arranged on the outer side wall of the bearing ring body, the limiting sliders are slidably arranged in the limiting chute body in a matching manner, and an annular clamping groove body is arranged on the bearing ring body. The annular clamping groove body is communicated with the annular communication groove, the annular clamping groove body is clamped with the elastic clamping ring body in a matching manner, the elastic clamping ring body is fixedly connected with the annular connecting strip, and the annular connecting strip is fixedly arranged on the connecting plate member.

[0016] Preferably, the connecting plate member is arranged as an annular plate body, and the connecting plate member is connected with the cleaning component. The cleaning component includes a cleaning brush body and an auxiliary convex body. The cleaning brush bodies are equidistantly and fixedly arranged on the outer side wall of the connecting plate member, and the cleaning brush bodies are arranged in a ring shape. Auxiliary convex bodies are equidistantly arranged on the side wall of the cleaning brush body, and the auxiliary convex bodies are arranged obliquely.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The present invention includes a supporting top plate, a supporting bottom plate, and a filter cloth tube bag body. The top end of the filter cloth tube bag body is fixedly connected to the supporting top plate, and the bottom end of the filter cloth tube bag body is fixedly connected to the supporting bottom plate. A connecting sealing ring body is provided on the top of the supporting top plate. Among them, an annular auxiliary slope is fixedly provided on the supporting bottom plate, and the annular auxiliary slope is arranged on the side position of the filter cloth tube bag body. A protective filter wire mesh is arranged in the inner cavity of the filter cloth tube bag body, and an auxiliary component is arranged on the outer side of the filter cloth tube bag body. In this solution, a protective filter wire mesh is installed inside the cloth tube dust collector device. A fixing ring plate is fixedly provided at one end of the protective filter wire mesh, and the fixing ring plate is fixedly connected to the supporting top plate by screws, and is detachably arranged, which is convenient for subsequent replacement, maintenance and other work. The dust-containing waste gas enters from the bottom port of the cloth tube dust collector device, and then passes through the filter cloth tube bag body therein for filtering. The filtered gas is then discharged outwards through the filter cloth tube bag body. During this process, the protective filter wire mesh provided has a good filtering and blocking effect on waste materials such as spiny small shells contained in the gas, and tries to prevent waste materials such as spiny small shells from directly hitting the filter cloth tube bag body or even piercing into it. The protective filter wire mesh can provide a good protection for the filter cloth tube bag body. When the protective filter wire mesh filters and blocks waste materials such as spiny small shells, during this process, there may still be a small amount or individual waste materials such as spiny small shells passing through the protective filter wire mesh and adhering to the inner side wall of the filter cloth tube bag body. At this time, the protective filter wire mesh acts as a buffer, trying to prevent waste materials such as spiny small shells from directly piercing the filter cloth tube bag body. And the air sprayed by the blowing pipe blows the impurities on the protective filter wire mesh and the filter cloth tube bag body. At this time, the inflated filter cloth tube bag body extends outwards. During the process of extending outwards, the filter cloth tube bag body will contact the auxiliary top strips arranged on the inner sides of the first supporting protective wire mesh cover and the second supporting protective wire mesh cover, that is, the arranged auxiliary top strips impact the filter cloth tube bag body, which has a positive effect on cleaning the impurities adhered to or even pierced into the inner side wall of the filter cloth tube bag body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural connection diagram of the cloth tube dust collector device of the present invention;

[0020] Figure 2 is Figure 1 an enlarged schematic structural connection diagram at A in

[0021] Figure 3 is a top view of the structural connection of the supporting top plate, the filter cloth tube bag body, and the supporting bottom plate of the present invention;

[0022] Figure 4 is a bottom view of the structural connection of the supporting top plate, the filter cloth tube bag body, and the supporting bottom plate of the present invention;

[0023] Figure 5 Schematic diagram of the connection between the support chassis and the local structure of the annular auxiliary ramp of the present invention;

[0024] Figure 6 Top view of the connection structure of the protective filter screen of the present invention;

[0025] Figure 7 For Figure 6 Enlarged schematic diagram of the connection structure at position B in

[0026] Figure 8 Bottom view of the connection structure of the protective filter screen of the present invention;

[0027] Figure 9 For Figure 8 Enlarged schematic diagram of the connection structure at position C in

[0028] Figure 10 Top view of the connection structure between the first support protective wire mesh cover and the second support protective wire mesh cover of the present invention;

[0029] Figure 11 For Figure 10 Enlarged schematic diagram of the connection structure at position D in

[0030] Figure 12 Bottom view of the connection structure between the first support protective wire mesh cover and the second support protective wire mesh cover of the present invention;

[0031] Figure 13 Exploded schematic diagram of the connection structure of the filtration auxiliary accessories of the present invention;

[0032] Figure 14 Top view of the connection structure of the bearing ring body, connecting plate member and cleaning component of the present invention;

[0033] Figure 15 For the present invention Figure 14 Enlarged schematic diagram of the connection structure at position E in

[0034] Figure 16 Bottom view of the connection structure of the bearing ring body, connecting plate member and cleaning component of the present invention;

[0035] Figure 17 For the present invention Figure 16 Enlarged schematic diagram of the connection structure at position F in

[0036] In the figure: support top plate 1, connecting and sealing ring body 11, support bottom plate 2, annular auxiliary slope 21, filter cloth tube bag body 3, protective filter wire mesh 4, fixing ring plate 401, first installation thread groove 402, support vertical bar 403, limit sliding groove body 404, first support and protective wire mesh cover 501, second support and protective wire mesh cover 502, arc-shaped installation plate member 503, second installation thread groove 504, auxiliary top bar 505, bearing ring body 601, limit slider 602, annular clamping groove body 603, annular communication groove 604, connecting plate member 605, annular connecting bar 606, elastic clamping ring body 607, cleaning brush body 6081, auxiliary convex body 6082. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present invention will be described clearly and completely. For the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Embodiment 1: Please refer to Figures 1-17 , a cloth tube dust filter device adapted to grain processing and production, including a support top plate 1, a support bottom plate 2, and a filter cloth tube bag body 3. The top end of the filter cloth tube bag body 3 is fixedly connected to the support top plate 1, and the bottom end of the filter cloth tube bag body 3 is fixedly connected to the support bottom plate 2. A connecting and sealing ring body 11 is arranged on the top of the support top plate 1; wherein an annular auxiliary slope 21 is fixedly arranged on the support bottom plate 2, and the annular auxiliary slope 21 is arranged on the side of the filter cloth tube bag body 3. A protective filter wire mesh 4 is arranged in the inner cavity of the filter cloth tube bag body 3, and an auxiliary component is arranged on the outer side of the filter cloth tube bag body 3.

[0039] In this solution, a protective filter screen 4 is installed inside the cloth cylinder dust collector device. A fixing ring plate 401 is fixedly arranged at one end of the protective filter screen 4. The fixing ring plate 401 is fixedly connected to the support top plate 1 by screws and is detachably arranged to facilitate subsequent replacement, maintenance and other work. The protective filter screen 4 is arranged in a cylindrical shape, and a fixing ring plate 401 is fixedly arranged at one end of the protective filter screen 4. First installation threaded grooves 402 are symmetrically arranged on the fixing ring plate 401. The fixing ring plate 401 is fixedly connected to the support top plate 1 by screws. Installation holes corresponding to the first installation threaded grooves 402 are arranged on the support top plate 1. The other end of the protective filter screen 4 extends to the position of the mouth of the support chassis 2, and the port of the protective filter screen 4 corresponds to the position of the annular auxiliary slope 21. The dust-containing waste gas enters from the bottom port of the cloth cylinder dust collector device and then passes through the filter cloth cylinder bag main body 3 for filtering. The filtered gas is then discharged outwards through the filter cloth cylinder bag main body 3. During this process, the protective filter screen 4 has a good filtering and blocking effect on waste materials such as spiny small shells contained in the gas, and tries to prevent waste materials such as spiny small shells from directly hitting the filter cloth cylinder bag main body 3 or even piercing into it. The protective filter screen 4 can provide a good protection for the filter cloth cylinder bag main body 3.

[0040] When it is necessary to clean the dust and impurities adhered to the filter cloth cylinder bag main body 3 subsequently, the blowpipe in the equipment will blow the filter cloth cylinder bag main body 3, that is, the gas ejected from the blowpipe enters from the top end of the filter cloth cylinder bag main body 3 to clean the protective filter screen 4 and the filter cloth cylinder bag main body 3. The impurities cleaned out fall into the ash hopper at the bottom of the equipment.

[0041] When filtering and blocking waste materials such as spiky small shells through the protective filter screen 4, in this process, there may still be a small amount or individual waste materials such as spiky small shells passing through the protective filter screen 4 and adhering to the inner side wall of the filter cloth tube bag body 3. At this time, the protective filter screen 4 serves as a buffer, trying to avoid the waste materials such as spiky small shells directly piercing the filter cloth tube bag body 3, which provides convenience for the subsequent blowing process and will not cause damage to the filter cloth tube bag body 3. On the other hand, during the blowing process, due to the blowing effect, some impurities on the protective filter screen 4 may also enter the space between the filter cloth tube bag body 3 and the protective filter screen 4 and adhere to the filter cloth tube bag body 3. They can all fall through the blown air. And this solution also sets up an auxiliary component to assist in cleaning the impurities adhering to the filter cloth tube bag body 3. The auxiliary component includes a first support protective wire mesh cover 501, a second support protective wire mesh cover 502, an arc-shaped mounting plate member 503, a second mounting thread groove 504, and an auxiliary top bar 505; arc-shaped mounting plate members 503 are symmetrically and fixedly arranged at both ends of the first support protective wire mesh cover 501, and arc-shaped mounting plate members 503 are also symmetrically and fixedly arranged at both ends of the second support protective wire mesh cover 502. The second mounting thread groove 504 is arranged on the arc-shaped mounting plate member 503; the mounting ring body at one end of the protective wire mesh tube is fixedly connected to the support top plate 1 by screws, and the mounting ring body at the other end of the protective wire mesh tube is fixedly connected to the support bottom plate 2 by screws. The protective wire mesh tube is arranged outside the filter cloth tube bag body 3. Mounting holes corresponding to the second mounting thread groove 504 are arranged on both the support top plate 1 and the support bottom plate 2; the first support protective wire mesh cover 501 and the second support protective wire mesh cover 502 are arranged in corresponding positions and have the same number of sets, and the first support protective wire mesh cover 501 and the second support protective wire mesh cover 502 are butted to form a protective wire mesh tube, that is, the arc-shaped mounting plate members 503 at the ends of the first support protective wire mesh cover 501 and the second support protective wire mesh cover 502 are butted to form two mounting ring bodies, and auxiliary top bars 505 are equidistantly arranged on the inner sides of both the first support protective wire mesh cover 501 and the second support protective wire mesh cover 502.

[0042] The air ejected from the injection pipe blows and cleans the impurities on the protective filter wire mesh 4 and the filter cloth cylinder bag body 3. At this time, the inflated filter cloth cylinder bag body 3 extends outwards. During the outward extension process, the filter cloth cylinder bag body 3 will contact the auxiliary top strips 505 arranged on the inner sides of the first support protective wire mesh cover 501 and the second support protective wire mesh cover 502, that is, the arranged auxiliary top strips 505 impact the filter cloth cylinder bag body 3, which has a positive effect on cleaning the impurities adhered to or even stuck on the inner side wall of the filter cloth cylinder bag body 3. Moreover, for the impurities that fall between the filter cloth cylinder bag body 3 and the protective filter wire mesh 4, finally, under the action of the annular auxiliary slope 21 on the support chassis 2, they flow out. The annular auxiliary slope 21 provides a guiding and draining effect on the fallen impurities during this process.

[0043] In this solution, the first support protective wire mesh cover 501 and the second support protective wire mesh cover 502 are butted to form a protective wire mesh cylinder. The protective wire mesh cylinder is arranged on the outer side of the filter cloth cylinder bag body 3 and can also provide a protective effect on the filter cloth cylinder bag body 3. The arranged protective wire mesh cylinder can be formed by splicing the first support protective wire mesh cover 501 and the second support protective wire mesh cover 502. Moreover, the mounting ring bodies at both ends of the protective wire mesh cylinder are fixedly connected to the support top plate 1 and the support chassis 2 respectively, and are detachably arranged, which is convenient for later replacement and maintenance work. And on this basis, when the first support protective wire mesh cover 501 and the second support protective wire mesh cover 502 are installed, they are directly installed from the side of the filter cloth cylinder bag body 3, without the need to sleeve and install from one end of the filter cloth cylinder bag body 3. That is, when it is necessary to check the filter cloth cylinder bag body 3 during long-term operation, there is no need to disassemble the whole cloth cylinder dust collector device, and only the first support protective wire mesh cover 501 and the second support protective wire mesh cover 502 need to be removed respectively. The operation is highly convenient and the use flexibility is good.

[0044] Among them, when impurities remaining on the protective filter screen 4 accumulate during long-term operation and cannot be effectively cleaned and separated solely by blowing, it is necessary for the staff to carry out the cleaning and separation work. In this solution, the filter auxiliary accessories are provided to effectively clean it. That is, support vertical bars 403 are symmetrically and fixedly arranged on the inner side of the protective filter screen 4, a limit chute body 404 is arranged in the support vertical bar 403, and one end of the limit chute body 404 extends to the end face position of one end of the support vertical bar 403. The limit chute body 404 is connected to the filter auxiliary accessories; among them, the filter auxiliary accessories include a bearing ring body 601, a limit slider 602, an annular clamping groove body 603, an annular communication groove 604, a connecting plate member 605, an annular connecting strip 606, an elastic clamping ring body 607, and a cleaning component; limit sliders 602 are symmetrically and fixedly arranged on the outer side wall of the bearing ring body 601. The limit sliders 602 are slidably arranged in the limit chute body 404 in a matching manner, and an annular clamping groove body 603 is arranged on the bearing ring body 601. The annular clamping groove body 603 is communicated with the annular communication groove 604. The annular clamping groove body 603 is clamped with the elastic clamping ring body 607 in a matching manner. The elastic clamping ring body 607 is fixedly connected to the annular connecting strip 606. The annular connecting strip 606 is fixedly arranged on the connecting plate member 605; the connecting plate member 605 is arranged as an annular plate body, and the connecting plate member 605 is connected to the cleaning component. The cleaning component includes a cleaning brush body 6081 and an auxiliary convex body 6082. The cleaning brush bodies 6081 are equidistantly and fixedly arranged on the outer side wall of the connecting plate member 605, and the cleaning brush bodies 6081 are arranged in an annular shape.

[0045] In this solution, by connecting and arranging a filtering auxiliary fitting inside the protective filtering wire mesh 4, the impurities adhering and accumulating on the protective filtering wire mesh 4 can be cleaned, and there is no need to remove the entire protective filtering wire mesh 4. Although the disassembly of the protective filtering wire mesh 4 is simple, the disassembly and installation processes still cause a certain amount of time waste. Just push the bearing ring body 601, and the bearing ring body 601 slides and moves through the limiting slider 602 in the limiting chute body 404 of the inner support vertical bar 403 of the protective filtering wire mesh 4. While the bearing ring body 601 is moving, the cleaning brush body 6081 on the side of the connecting plate member 605 arranged on the bearing ring body 601 cleans the protective filtering wire mesh 4, so that the adhering and accumulating impurities are separated from the protective filtering wire mesh 4. And in this solution, auxiliary convex bodies 6082 are equidistantly arranged on the side wall of the cleaning brush body 6081. The auxiliary convex bodies 6082 are inclined. The annular cleaning brush body 6081, driven by the connecting plate member 605, has a corresponding cleaning effect on the surface of the protective filtering wire mesh 4 and the pores of the protective filtering wire mesh 4. The arranged auxiliary convex bodies 6082 have a certain cleaning effect on the impurities that adhere more firmly or are stuck in the pores of the protective filtering wire mesh 4. Among them, the connecting plate member 605 and the bearing ring body 601 are detachably arranged, that is, the elastic snap ring body 607 at the bottom end of the connecting plate member 605 is adaptively clamped with the annular clamping groove body 603 on the bearing ring body 601. When it is necessary to clean the cleaning brush body 6081 to ensure its cleaning effect on the protective filtering wire mesh 4, directly pull out the connecting plate member 605 from the bearing ring body 601, that is, separate the elastic snap ring body 607 from the annular clamping groove body 603. When installation is required, align the elastic snap ring body 607 with the annular clamping groove body 603 and then press it in forcefully, and the operation is convenient.

[0046] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cloth drum dust filter device adapted for grain processing and production, comprising a supporting top plate (1), a supporting bottom plate (2) and a filter cloth drum bag body (3), wherein the top end of the filter cloth drum bag body (3) is fixedly connected to the supporting top plate (1), the bottom end of the filter cloth drum bag body (3) is fixedly connected to the supporting bottom plate (2), and a connecting sealing ring body (11) is provided at the top of the supporting top plate (1); Features: An annular auxiliary slope (21) is fixedly arranged on the supporting chassis (2), and the annular auxiliary slope (21) is arranged at the side of the filter cloth drum bag body (3), the inner cavity of the filter cloth drum bag body (3) is provided with a protective filter screen (4), and an auxiliary component is arranged on the outer side of the filter cloth drum bag body (3).

2. The cloth tube dust filter device adapted for grain processing and production according to claim 1 is characterized in that: The protective filter screen (4) is arranged in a cylindrical shape, and a fixing ring plate (401) is fixedly arranged on one end of the protective filter screen (4), and a first mounting thread groove (402) is symmetrically arranged on the fixing ring plate (401).

3. The cloth tube dust filter device adapted for grain processing and production according to claim 2 is characterized in that: A supporting vertical bar (403) is symmetrically fixedly arranged on the inner side of the protective filter screen (4), a limiting slide groove body (404) is arranged in the supporting vertical bar (403), and one end of the limiting slide groove body (404) extends to the end surface position of one end of the supporting vertical bar (403), and the limiting slide groove body (404) is connected to the auxiliary filtering accessory.

4. The cloth tube dust filter device adapted for grain processing and production according to claim 2 is characterized in that: The fixing ring plate (401) is fixedly connected to the supporting top plate (1) by means of screws, and the supporting top plate (1) is provided with a mounting hole corresponding to the first mounting thread groove (402).

5. The cloth tube dust filter device adapted for grain processing and production according to claim 2 is characterized in that: The other end of the protective filter screen (4) extends to the opening of the supporting chassis (2), and the port of the protective filter screen (4) corresponds to the setting position of the annular auxiliary slope (21).

6. The cloth tube dust filter device adapted for grain processing and production according to claim 1 is characterized in that: The auxiliary component comprises a first supporting protective wire mesh cover (501), a second supporting protective wire mesh cover (502), an arc-shaped mounting plate (503), a second mounting threaded groove (504) and an auxiliary top strip (505); the first supporting protective wire mesh cover (501) is symmetrically fixed with an arc-shaped mounting plate (503) at both ends, and the second supporting protective wire mesh cover (502) is also symmetrically fixed with an arc-shaped mounting plate (503), and the arc-shaped mounting plate (503) is provided with a second mounting threaded groove (504).

7. The cloth tube dust filter device adapted for grain processing and production according to claim 6 is characterized in that: The first supporting protective wire mesh cover (501) and the second supporting protective wire mesh cover (502) are arranged at corresponding positions and have the same number of groups, and the first supporting protective wire mesh cover (501) and the second supporting protective wire mesh cover (502) are butt-jointed to form a protective wire mesh tube, that is, the arc-shaped mounting plates (503) at the ends of the first supporting protective wire mesh cover (501) and the second supporting protective wire mesh cover (502) are butt-jointed to form two mounting rings, and auxiliary top strips (505) are equidistantly arranged on the inner sides of the first supporting protective wire mesh cover (501) and the second supporting protective wire mesh cover (502).

8. The cloth tube dust filter device adapted for grain processing and production according to claim 6 is characterized in that: The mounting ring at one end of the protective wire mesh cylinder is fixedly connected to the supporting top plate (1) by means of screws, and the mounting ring at the other end of the protective wire mesh cylinder is fixedly connected to the supporting bottom plate (2) by means of screws. The protective wire mesh cylinder is arranged on the outside of the filter cloth cylinder bag body (3), and both the supporting top plate (1) and the supporting bottom plate (2) are provided with mounting holes corresponding to the second mounting thread groove (504).

9. The cloth tube dust filter device adapted for grain processing and production according to claim 3 is characterized in that: The auxiliary filtering accessory comprises a bearing ring body (601), a limiting slider (602), an annular clamping groove body (603), an annular connecting groove (604), a connecting plate (605), an annular connecting strip (606), an elastic clamping ring body (607) and a cleaning component; the outer wall of the bearing ring body (601) is symmetrically and fixedly provided with a limiting slider (602), the limiting slider (602) is adapted and slidably arranged in the limiting slider body (404), and an annular clamping groove body (603) is arranged on the bearing ring body (601), the annular clamping groove body (603) is connected with the annular connecting groove (604), the annular clamping groove body (603) is adapted and clamped with the elastic clamping ring body (607), the elastic clamping ring body (607) is fixedly connected with the annular connecting strip (606), and the annular connecting strip (606) is fixedly arranged on the connecting plate (605).

10. The cloth tube dust filter device adapted for grain processing and production according to claim 9, characterized in that: The connecting plate (605) is configured as an annular plate body, and the connecting plate (605) is connected to a cleaning component, the cleaning component comprises a cleaning brush body (6081) and an auxiliary convex body (6082), the cleaning brush body (6081) is fixedly arranged at equal intervals on the outer wall of the connecting plate (605), and the cleaning brush body (6081) is arranged in an annular shape, and auxiliary convex bodies (6082) are arranged at equal intervals on the side wall of the cleaning brush body (6081), and the auxiliary convex bodies (6082) are arranged at an incline.

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