Bag-type dust collector easy to clean

Abstract

The utility model discloses an easy-to-clean bag-type dust collector which comprises an upper box body and a lower box body, a partition plate is arranged at the upper part in the upper box body, a plurality of groups of through holes are uniformly formed in the partition plate, filter bags are arranged in the through holes, and support frames are arranged in the filter bags; the support frame consists of an upper support part and a lower support part; the upper support part is arranged at the top opening of the filter bag and is tightly pressed with the through hole to form sealing; the upper supporting part is composed of an upper fixing ring and an upper supporting rod, and an upper connecting ring is arranged at the tail end of the upper supporting rod. The lower supporting part consists of a lower fixing ring and a lower supporting rod; a lower connecting ring is arranged at the top end of the lower supporting rod; the lower connecting ring is connected with the upper connecting ring in a sleeving manner; the lower fixing ring is arranged on the bottom frame, reset springs are arranged between the four corners of the bottom frame and the lower box body, a cam is arranged on one side of the bottom frame and connected with a driving shaft, and the driving shaft extends to the outer side of the lower box body. The filter bag cleaning device is novel in structure, the cam is matched with the return spring, so that the whole filter bag can oscillate, and the cleaning effect is further improved.

Description

Technical Field

[0001] This utility model relates to the field of gas dust removal, and in particular to an easy-to-clean bag filter. Background Technology

[0002] Baghouse dust collectors primarily rely on filter bags made of fiber filter media to purify gas. Dust-laden gas enters the baghouse dust collector through the inlet. As it passes through the hopper, some large dust particles are separated by inertia and gravity and fall to the bottom of the hopper. The remaining dust-laden gas then enters the filter bag filtration zone in the middle chamber. The gas passes through the filter bags, while the dust is trapped on the outer surface of the filter bags. The purified gas then enters the upper chamber through the filter bag openings and is finally discharged through the outlet.

[0003] Traditional baghouse dust collectors mainly rely on back-blowing systems to clean filter bags, lacking other auxiliary methods. As a result, the cleaning effect of filter bags is not ideal, which further leads to dust accumulation on the filter bags and poor air purification effect. At the same time, the efficiency of filter bag replacement is low, which also needs to be further optimized. Utility Model Content

[0004] The purpose of this invention is to provide an easy-to-clean baghouse dust collector with high cleaning efficiency and easy filter bag replacement.

[0005] The purpose of this utility model is achieved as follows: an easy-to-clean bag filter includes an upper chamber and a lower chamber. The upper chamber has a partition plate at its upper part, with multiple sets of through holes evenly distributed on the partition plate. Filter bags are placed inside the through holes, and support frames are provided inside the filter bags. The support frame consists of an upper support part and a lower support part. The upper support part is positioned at the top opening of the filter bag and is pressed tightly against the through hole to form a seal. The upper support part consists of an upper fixing ring and a downwardly extending upper support rod, with the upper support rod evenly distributed on the upper fixing ring and an upper connecting ring at its end. The lower support part consists of a lower fixing ring and an upwardly extending lower support rod, with a lower connecting ring at the top of the lower support rod. The lower connecting ring is sleeved and connected to the upper connecting ring. The lower fixing ring is mounted on a bottom frame, and return springs are provided between the four corners of the bottom frame and the lower chamber. A cam is provided on one side of the bottom frame, and the cam is connected to a drive shaft, which extends to the outside of the lower chamber.

[0006] Preferably, the bottom frame is composed of a hollow frame and a mesh, the mesh is placed inside the hollow frame, and the mesh is provided with multiple sets of fixing holes to be connected and fixed with the lower fixing ring.

[0007] Preferably, a protective plate is provided on the side of the hollow frame adjacent to the cam, and the protective plate is fixedly connected to the hollow frame by bolts.

[0008] Preferably, a counterweight is provided at the bottom of the hollow frame.

[0009] Preferably, the upper fixing ring has an outward flange around its periphery, and the partition has a fixing groove around its through hole that matches the outward flange. The outward flange is covered with a rubber layer and engages with the fixing groove for fixation.

[0010] Preferably, annular rings are provided for limiting and fixing between the upper support rods and between the lower support rods.

[0011] Compared with the prior art, the advantages of this utility model are:

[0012] 1. The traditional filter bag support frame is transformed into a connection structure between the upper and lower support parts. The upper and lower support parts can be movably connected. After the bottom cam rotates, the main body of the lower support part can vibrate. Combined with the traditional back-blowing system, the cleaning effect of the filter bag is further improved, and small dust particles are prevented from covering the bag body.

[0013] 2. Springs are installed around the bottom frame. After they come into contact with the cam, they can automatically return to their original position. The bottom frame will achieve multiple vibrations under the action of the spring force, thereby achieving dust removal. The counterweight at the bottom of the bottom frame can ensure that the main body of the bottom frame can always form a tension with the bag body, ensuring the verticality of the bag body.

[0014] 3. The upper fixing ring and through hole are designed to be inserted and engaged, making it convenient to remove and replace the independent bag body later. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is an enlarged view of the structure at point A of this utility model.

[0017] Figure 3 This is a schematic diagram of the bottom frame of this utility model.

[0018] The components include: 1. Upper housing; 2. Lower housing; 3. Partition; 301. Through hole; 3011. Fixing groove; 4. Filter bag; 5. Support frame; 501. Upper support part; 5011. Upper fixing ring; 50111. Outward flange; 5012. Upper support rod; 50121. Upper connecting ring; 502. Lower support part; 5021. Lower fixing ring; 5022. Lower support rod; 50221. Lower connecting ring; 6. Bottom frame; 601. Hollow frame; 602. Mesh; 6021. Fixing hole; 7. Return spring; 8. Cam; 9. Drive shaft; 10. Counterweight. Detailed Implementation

[0019] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0020] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figure 1-3As shown, an easy-to-clean bag filter includes an upper housing 1 and a lower housing 2. The upper housing 1 has a partition 3 at its upper part, with multiple sets of through holes 301 evenly distributed on the partition 3. Filter bags 4 are placed within the through holes 301, and a support frame 5 is installed inside the filter bags 4. The support frame 5 consists of an upper support part 501 and a lower support part 502. The upper support part 501 is positioned at the top opening of the filter bag 4 and is pressed tightly against the through holes 301 to form a seal. The upper support part 501 consists of an upper fixing ring 5011 and a downwardly extending upper support rod 5012. The upper support rod 5012 is evenly distributed on the upper fixing ring 5011, and the end of the upper support rod 5012 is provided with an upper connecting... The lower support part 502 consists of a lower fixed ring 5021 and an upwardly extending lower support rod 5022. The lower support rod 5022 has a lower connecting ring 50221 at its top. The lower connecting ring 50221 is sleeved and connected to the upper connecting ring 50121, so that the upper support part and the lower support part can be movably connected. The lower fixed ring 5021 is set on the bottom frame 6. The bottom frame 6 has a return spring 7 between its four corners and the lower housing 2. The bottom frame 6 has a cam 8 on one side. The cam 8 is connected to the drive shaft 9. The drive shaft 9 extends to the outside of the lower housing. The driving force of the drive shaft can be manual or motor driven.

[0023] like Figure 3 As shown, the bottom frame 6 is composed of a hollow frame 601 and a grid 602. The grid 602 is placed inside the hollow frame 601. The grid 602 is provided with multiple sets of fixing holes 6021 that are connected and fixed to the lower fixing ring 5021. Since the air inlet is at the bottom of the lower box, the grid shape facilitates gas flow.

[0024] like Figure 1 , 3 As shown, a protective plate is provided on the side adjacent to the hollow frame 6 and the cam 8. The protective plate is fixed to the hollow frame by bolts to prevent the cam from making direct contact with the hollow frame, thereby preventing damage to the hollow frame. During maintenance, only the protective plate needs to be replaced.

[0025] like Figure 1 As shown, the hollow frame 6 has a counterweight 10 at the bottom. The counterweight at the bottom of the bottom frame can ensure that the main body of the bottom frame can always be stretched with the bag body, thus ensuring the verticality of the bag body.

[0026] like Figure 2 As shown, the upper fixing ring 5011 has an outer flange 50111 around its periphery, and the through hole 301 of the partition plate 3 has a fixing groove 3011 around its periphery that matches the outer flange 50111. The outer flange 50111 is covered with a rubber layer and engages with the fixing groove 3011 for fixation. That is, after the entire filter bag body contacts the connection between the lower fixing ring and the bottom frame, it can be pulled out directly, which improves the replacement efficiency and eliminates the need to remove multiple sets of bolts.

[0027] like Figure 1-2As shown, annular rings (not shown in the figure) are provided between the upper support rods 5012 and between the lower support rods 5022 to limit and fix them. The annular rings are used to ensure that each support rod will not shift and can form an integral cylindrical structure to adapt to the filter bag body and ensure the verticality of the filter bag body.

[0028] The working principle of this utility model is explained as follows: When cleaning the bag, the top back-blowing system (this is prior art, not shown in the figure) first cleans the bag. Then, the cam is driven so that it comes into contact with the bottom frame. The bottom frame can automatically return to its original position under the action of the spring. The bottom frame will achieve multiple vibrations under the action of the spring force, thereby removing dust. The back-blowing system is restarted to further clean the dust on the surface of the bag, and the cleaning effect is more ideal.

[0029] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. An easy-to-clean baghouse dust collector, comprising an upper housing and a lower housing, characterized in that, The upper chamber has a partition plate at its upper part, with multiple sets of through holes evenly distributed on the partition plate. Filter bags are placed inside the through holes, and support frames are placed inside the filter bags. The support frame consists of an upper support part and a lower support part. The upper support part is placed at the top opening of the filter bag and is pressed tightly against the through hole to form a seal. The upper support part consists of an upper fixing ring and a downwardly extending upper support rod. The upper support rod is evenly distributed on the upper fixing ring, and an upper connecting ring is provided at the end of the upper support rod. The lower support part consists of a lower fixing ring and an upwardly extending lower support rod. A lower connecting ring is provided at the top of the lower support rod. The lower connecting ring is sleeved and connected to the upper connecting ring. The lower fixing ring is set on the bottom frame. Return springs are provided between the four corners of the bottom frame and the lower chamber. A cam is provided on one side of the bottom frame. The cam is connected to a drive shaft, and the drive shaft extends to the outside of the lower chamber.

2. The easy-to-clean bag filter according to claim 1, characterized in that, The bottom frame consists of a hollow frame and a mesh. The mesh is placed inside the hollow frame and has multiple sets of fixing holes that are connected and fixed to the lower fixing ring.

3. The easy-to-clean bag filter according to claim 2, characterized in that, A protective plate is provided on the side of the hollow frame adjacent to the cam, and the protective plate is fixedly connected to the hollow frame by bolts.

4. The easy-to-clean bag filter according to claim 2, characterized in that, The hollow frame is equipped with a counterweight at its bottom.

5. The easy-to-clean bag filter according to claim 1, characterized in that, The upper fixing ring has an outward flange around its periphery, and the partition plate has a fixing groove around its through hole that matches the outward flange. The outward flange is covered with a rubber layer and engages with the fixing groove for fixation.

6. The easy-to-clean bag filter according to claim 1, characterized in that, The upper support rods are provided with ring rings for limiting and fixing between each other and between each other.

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