High-sealing leakproof cloth bag for bag-type dust collector

Abstract

The utility model relates to the technical field of bag-type dust removers, in particular to a high-sealing leakproof cloth bag for a bag-type dust remover, which comprises a dust remover main body and a filter bracket detachably connected in the dust remover main body, the filter bag assembly comprises a filter bag body, an outer bag cage arranged outside the filter bag body in a sleeving mode and an inner bag cage connected into the filter bag body in a clamped and embedded mode, the outer bag cage is of a cylindrical frame structure, the two ends of the outer bag cage are connected to a filter support in a matched mode, and a pressing ring is arranged on the upper surface of the filter support; the pressing ring is movably arranged on the filtering support along the axis of the outer bag cage, a sealing gasket is arranged between the outer bag cage and the pressing ring, one face of the sealing gasket abuts against the outer bag cage, and the other face of the sealing gasket abuts against the pressing ring; by additionally arranging the sealing ring and the sealing gasket, the double-sealing effect is realized, and the sealing stability of the filter bag assembly is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of bag dust collectors, in particular to a high-sealing anti-leakage bag for bag dust collectors. Background Art

[0002] Bag filter, also known as bag filter, is a dry dust filter. It is suitable for capturing fine, dry, non-fibrous dust. The dust collecting component in the bag filter is a filter bag, which is made of textile filter cloth or non-textile felt. The dust-containing gas is filtered by the filtering effect of the fiber fabric. When the dust-containing gas enters the bag filter, the dust with large particles and high specific gravity settles down due to the effect of gravity and falls into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is retained, so that the gas is purified. Therefore, the filtering effect of the bag filter is directly related to the filter bag installed on it. It is usually necessary to ensure that the filter bag has a high installation sealing to prevent fine dust gas from passing through. In the prior art, the filter bag sealing strip on the bag filter is a fast-consumable product. After a period of use, dust and liquid will enter from the gap between the top cover and the upper box body, thereby affecting the working efficiency and filtering effect of the equipment. For example, Chinese patent CN209221703U discloses a bag dust collector and a sealing strip for the bag dust collector, including a sealing strip body for installation in a sealing strip installation groove, the sealing strip body including a top cover sealing strip for flush attachment to the bottom surface of the top cover; and also including a left side wall sealing strip for aligning the bottom surface of the top cover sealing strip and the left side wall of the upper box body, and a right side wall sealing strip for aligning the bottom surface of the top cover sealing strip and the right side wall of the upper box body, wherein the top cover sealing strip, the right side wall sealing strip and the left side wall sealing strip are seamlessly connected. The sealing strip for the bag dust collector provided by the above patent improves the sealing effect between the filter bag of the bag dust collector and the top cover and the upper box body. However, the sealing strip is integrated into the end of the filter bag. In order to ensure the sealing effect, the sealing strip needs to be connected to the bag collector by interference fit. The integrated sealing strip is difficult to connect due to its large size, and the overall fitting effect of the sealing strip is poor. The operator needs to check it one by one, and the installation process is cumbersome, affecting production efficiency.

[0003] Therefore, it is necessary for technical personnel in this field to provide a high-seal and leak-proof bag for a bag dust collector, improve the sealing performance of the filter bag seal of the bag dust collector while ensuring the convenience of replacement, reduce the number of maintenance times of the bag dust collector, and increase the service life and efficiency of the bag dust collector. Utility Model Content

[0004] The utility model aims to provide a high-sealing anti-leakage cloth bag for a bag dust collector, so as to solve the technical problem of poor sealing performance of the sealing element of the filter bag in the bag dust collector in the prior art.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a high-sealing and leak-proof cloth bag for a bag dust collector, comprising a dust collector body and a filter bracket detachably connected to the dust collector body, a filter bag assembly being plugged in and out of the filter bracket, the filter bag assembly comprising a filter bag body, an outer bag cage sleeved outside the filter bag body, and an inner bag cage snap-fitted and connected to the filter bag body, the outer bag cage presenting a cylindrical frame structure, the two ends of the outer bag cage being cooperatively connected to the filter bracket, a pressure ring being provided on the upper surface of the filter bracket, the pressure ring being arranged on the filter bracket along the axis of the outer bag cage, a sealing gasket being provided between the outer bag cage and the pressure ring, one side of the sealing gasket abutting against the outer bag cage, and the other side of the sealing gasket abutting against the pressure ring.

[0006] Furthermore, the outer bag cage includes annular parts arranged in sequence along the longitudinal direction and a cylindrical part vertically fixedly connected to the annular parts.

[0007] Furthermore, there are multiple annular parts, the cylindrical part is fixedly connected between two adjacent annular parts, and an annular part is respectively provided at both ends of the outer bag cage, and the annular part abuts against the filter bracket.

[0008] Furthermore, a sealing ring is installed on the circumferential surface of the annular portion at the end of the outer bag cage, and the sealing ring is connected between the filter bracket and the outer bag cage.

[0009] Furthermore, there are multiple pressing rings, one pressing ring corresponds to one outer bag cage, one end of the pressing ring is threadedly connected to the filter bracket, and the other end of the pressing ring abuts against the upper surface of the filter bracket.

[0010] Furthermore, the filter bag body is fixedly connected to the outer bag cage as a whole, and the inner bag cage is cooperatively connected to the filter bag body.

[0011] Furthermore, part of the inner bag cage located in the filter bag body is directly opposite to the annular portion located at the end of the outer bag cage; the other part of the inner bag cage located in the filter bag body is located at the cylindrical portion of the outer bag cage.

[0012] Furthermore, a clamping groove is provided on the inner bottom wall of the filter bracket, one clamping groove faces a filter bag assembly, and the end of the outer bag cage is fitted and connected in the clamping groove and abuts against the bottom wall of the clamping groove.

[0013] Furthermore, an air outlet channel is provided on the dust collector body above the filter bracket, an air inlet channel is provided on the dust collector body below the filter bracket, the air inlet channel is connected to the filter bracket, and the air outlet channel is connected to the inside of the filter bag body. An ash hopper is provided on the dust collector body directly below the filter bracket.

[0014] The beneficial effect of the utility model is that the utility model realizes a double sealing effect by adding a sealing ring and a sealing gasket, thereby ensuring the sealing stability of the filter bag assembly. The inner bag cage located in the filter bag body is directly opposite to the annular portion located at the end of the outer bag cage, which is used to ensure the tightness of the connection between the annular portion at the end of the outer bag cage and the filter bracket. By applying pressure internally, the annular portion at the end of the outer bag cage can fit the filter bracket more closely and squeeze the sealing ring, thereby improving the sealing effect. At the same time, during installation, the sealing gasket and the sealing ring are separately arranged, respectively used to seal the top and the side, which improves the convenience of replacement while ensuring the sealing effect, and prevents the overall sealing of the equipment from being loose when one component is damaged or not installed tightly enough, thereby improving the use effect of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a stereoscopic diagram of a high-seal anti-leakage cloth bag for a cloth bag dust collector of the utility model.

[0016] Figure 2 The utility model is a top view of a high-seal anti-leakage cloth bag for a cloth bag dust collector.

[0017] Figure 3 yes Figure 2 Section view along AA.

[0018] Figure 4 yes Figure 2 Cross-sectional view along BB (isometric state).

[0019] Figure 5 The utility model is a three-dimensional diagram of a filter bag assembly in a high-sealing anti-leakage cloth bag for a cloth bag dust collector.

[0020] Figure 6 yes Figure 5 Explosion diagram.

[0021] Figure 7 yes Figure 3 A partial enlarged schematic diagram of area A in the middle.

[0022] The markings of the components in the accompanying drawings are as follows: 10, filter bracket; 11, sealing gasket; 12, pressure ring; 13, sealing ring; 14, card slot; 20, dust collector body; 21, air outlet channel; 22, air inlet channel; 27, ash hopper; 30, filter bag assembly; 31, filter bag body; 32, outer bag cage; 321, annular portion; 322, cylindrical portion; 33, inner bag cage. DETAILED DESCRIPTION

[0023] Now the utility model is described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the utility model in a schematic manner, so it only shows the components related to the utility model.

[0024] See also Figure 1 , Figure 2 and Figure 3 The utility model provides a high-sealing and leak-proof bag for a bag dust collector, including a dust collector body 20 and a filter bracket 10 detachably connected to the dust collector body 20. The filter bracket 10 is a square frame structure. A filter bag assembly 30 is plugged in and connected to the filter bracket 10. A plurality of filter bag assemblies 30 are evenly arranged on the filter bracket 10.

[0025] When in use, by removing the top cover plate (not shown) of the dust collector body 20, the filter bag assembly 30 is conveniently installed in sequence into the filter bracket 10. The filter bag assembly 30 is installed into the filter bracket 10 in a plug-in manner.

[0026] For further information, see Figure 5 , Figure 6 and Figure 7 The filter bag assembly 30 includes a filter bag body 31, an outer bag cage 32 sleeved outside the filter bag body 31, and an inner bag cage 33 connected to the filter bag body 31. The outer bag cage 32 is a cylindrical frame structure, and the two ends of the outer bag cage 32 are connected to the filter bracket 10. By tightly connecting the two ends of the outer bag cage 32 with the filter bracket 10, the sealing effect is improved, thereby ensuring the stability of the use of the utility model. The inner bag cage 33 is connected to the filter bag body 31 to enhance the stability of the connection between the filter bag body 31 and the outer bag cage 32, and ensure the stability of the use of the filter bag assembly 30.

[0027] Specifically, the outer bag cage 32 includes an annular portion 321 arranged in sequence along the longitudinal direction and a cylindrical portion 322 vertically fixedly connected to the annular portion 321. There are multiple annular portions 321, and the cylindrical portion 322 is fixedly connected between two adjacent annular portions 321 to form a stable frame structure; an annular portion 321 is provided at each end of the outer bag cage 32, and the annular portion 321 abuts against the filter bracket 10. A sealing ring 13 is installed on the circumferential surface of the annular portion 321 located at the end of the outer bag cage 32, and the sealing ring 13 is connected between the filter bracket 10 and the outer bag cage 32 to ensure the sealing effect.

[0028] A pressing ring 12 is provided on the upper surface of the filter bracket 10, and there are multiple pressing rings 12. One pressing ring 12 corresponds to an outer bag cage 32. One end of the pressing ring 12 is threadedly connected to the filter bracket 10, and the other end of the pressing ring 12 abuts against the upper surface of the filter bracket 10. The pressing ring 12 is arranged on the filter bracket 10 along the axis of the outer bag cage 32, so as to press the outer bag cage 32 downward; a sealing gasket 11 is provided between the outer bag cage 32 and the pressing ring 12, one side of the sealing gasket 11 abuts against the outer bag cage 32, and the other side of the sealing gasket 11 abuts against the pressing ring 12. When in use, the outer bag cage 32 is plugged and connected to the filter bracket 10, and the pressing ring 12 is installed above the outer bag cage 32. By rotating the pressing ring 12, the pressing ring 12 is continuously pressed downward and the outer bag cage 32 is tightly pressed into the filter bracket 10, thereby improving the sealing effect from the outside.

[0029] In this embodiment, the sealing ring 13 is made of rubber. The sealing pad 11 is also made of rubber. The utility model achieves a double sealing effect by adding the sealing ring 13 and the sealing pad 11 to ensure the sealing stability of the filter bag assembly 30.

[0030] The inner bag cage 33 is connected in cooperation with the filter bag body 31, and the filter bag body 31 is fixedly connected to the outer bag cage 32 by a cable tie to ensure the stability of the installation. The inner bag cage 33 is connected in cooperation with the filter bag body 31 so that the filter bag body 31 is uniformly cylindrical to ensure the roundness. At the same time, the inner bag cage 33 and the outer bag cage 32 cooperate with each other to tightly clamp the filter bag body 31 between the inner bag cage 33 and the outer bag cage 32, thereby improving the stability and uniformity of the filtration of the filter bag body 31.

[0031] In this embodiment, part of the inner bag cage 33 located in the filter bag body 31 is directly opposite to the annular portion 321 located at the end of the outer bag cage 32, so as to ensure the tightness of the connection between the annular portion 321 at the end of the outer bag cage 32 and the filter bracket 10. Through the pressure applied during installation, the annular portion 321 at the end of the outer bag cage 32 and the end of the inner bag cage 33 can be more closely attached to the inner and outer walls of the filter bag body 31 and squeeze the filter bag body 31, thereby improving the sealing effect from the inside. Another part of the inner bag cage 33 located in the filter bag body 31 is directly opposite to the cylindrical portion 322 on the outer bag cage 32. Since the cylindrical portion 322 is vertically fixedly connected to the annular portion 321, the filter bag body 31 located therein needs to be provided with a frame structure of the inner bag cage 33 to ensure the roundness, thereby improving the overall roundness of the filter bag body 31 and improving the stability and uniformity of the filtration of the utility model.

[0032] For further information, see Figure 3 , Figure 4A card embedding groove 14 is provided on the inner bottom wall of the filter bracket 10, and one card embedding groove 14 faces a filter bag assembly 30. The end of the outer bag cage 32 is fitted and connected in the card embedding groove 14 and abuts against the bottom wall of the card embedding groove 14 to achieve a stable connection relationship between the outer bag cage 32 and the filter bracket 10.

[0033] Please refer again Figure 1 , Figure 3 The dust collector body 20 is provided with an air outlet channel 21 above the filter support 10, and the dust collector body 20 is provided with an air inlet channel 22 below the filter support 10. The air inlet channel 22 is connected to the filter support 10, and the air outlet channel 21 is connected to the inside of the filter bag body 31. The dust collector body 20 is provided with an ash hopper 27 directly below the filter support 10; when in use, the dust-containing gas is input from the air inlet channel 22 into the filter support 10 through a fan (not shown in the figure), and the dust in the dust-containing gas is filtered out by the filter bag assembly 30 in the filter support 10. The filtered gas enters the inside of the filter bag body 31 and is discharged from the air outlet channel 21, completing the air dust removal and purification. During the filtering process, large particles of dust will automatically settle in the ash hopper 27, and the filter bag body 31 will also block part of the dust and make it settle in the ash hopper 27, so as to ensure the filtering stability.

[0034] The specific operation method of the utility model is as follows: step 1: installing the filter bag body 31 into the outer bag cage 32, and then installing the inner bag cage 33 into the filter bag body 31 to complete the assembly of the filter bag assembly 30.

[0035] Step 2: Plug and unplug the filter bag assembly 30 into the filter bracket 10, install the pressure ring 12 above the filter bag assembly 30, and rotate the pressure ring 12 so that the pressure ring 12 is continuously pressed down and the filter bag assembly 30 is tightly pressed into the filter bracket 10 to complete the installation.

[0036] The utility model realizes the internal and external double sealing effect by adding the sealing ring 13 and the sealing pad 11, thereby ensuring the sealing stability of the filter bag assembly 30. The part of the inner bag cage 33 located in the filter bag body 31 is directly opposite to the annular portion 321 located at the end of the outer bag cage 32, so as to ensure the tightness of the connection between the annular portion 321 at the end of the outer bag cage 32, the end of the inner bag cage 33 and the filter bracket 10. By applying pressure internally, the annular portion 321 at the end of the outer bag cage 32 and the end of the inner bag cage 33 can be more closely attached to the inner and outer walls of the filter bag body 31 and squeeze the filter bag body 31, thereby improving the sealing effect. At the same time, during installation, the sealing pad 11 and the sealing ring 13 are separately arranged, respectively used to seal the top and the side, so as to ensure the sealing effect and improve the convenience of replacement, and prevent the overall sealing of the equipment from being loose when one component is damaged or not installed tightly enough, thereby improving the use effect of the utility model.

[0037] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A highly sealed anti-leakage bag for a bag filter, comprising a dust collector body (20) and a filter bracket (10) detachably connected to the dust collector body (20), wherein a filter bag assembly (30) is pluggably connected to the filter bracket (10), characterized in that: The filter bag assembly (30) comprises a filter bag body (31), an outer bag cage (32) sleeved outside the filter bag body (31), and an inner bag cage (33) snap-fitted into the filter bag body (31); the outer bag cage (32) is a cylindrical frame structure; both ends of the outer bag cage (32) are cooperatively connected to a filter support (10); a pressure ring (12) is provided on the upper surface of the filter support (10); the pressure ring (12) is arranged on the filter support (10) along the axis of the outer bag cage (32); a sealing gasket (11) is provided between the outer bag cage (32) and the pressure ring (12); one side of the sealing gasket (11) abuts against the outer bag cage (32), and the other side of the sealing gasket (11) abuts against the pressure ring (12).

2. The high-seal anti-leakage bag for bag dust collector according to claim 1, characterized in that: The outer bag cage (32) comprises annular portions (321) arranged in sequence along the longitudinal direction and a cylindrical portion (322) vertically fixedly connected to the annular portions (321).

3. The high-seal anti-leakage bag for bag dust collector according to claim 2, characterized in that: A plurality of the annular portions (321) are provided, and the cylindrical portion (322) is fixedly connected between two adjacent annular portions (321). An annular portion (321) is provided at each end of the outer bag cage (32), and the annular portion (321) abuts against the filter support (10).

4. The high-seal anti-leakage bag for bag dust collector according to claim 3, characterized in that: A sealing ring (13) is installed on the circumferential surface of the annular portion (321) located at the end of the outer bag cage (32), and the sealing ring (13) is connected between the filter support (10) and the outer bag cage (32).

5. The high-seal anti-leakage bag for bag dust collector according to claim 1, characterized in that: A plurality of the pressure rings (12) are provided, one pressure ring (12) corresponds to one outer bag cage (32), one end of the pressure ring (12) is threadedly connected to the filter bracket (10), and the other end of the pressure ring (12) abuts against the upper surface of the filter bracket (10).

6. The high-seal anti-leakage bag for bag dust collector according to claim 2, characterized in that: The filter bag body (31) and the outer bag cage (32) are fixedly connected as a whole, and the inner bag cage (33) is connected to the filter bag body (31).

7. The high-seal anti-leakage bag for bag dust collector according to claim 6, characterized in that: A portion of the inner bag cage (33) located in the filter bag body (31) is directly opposite to the annular portion (321) located at the end of the outer bag cage (32); another portion of the inner bag cage (33) located in the filter bag body (31) is located at the cylindrical portion (322) on the outer bag cage (32).

8. The high-seal anti-leakage bag for bag dust collector according to claim 1, characterized in that: An embedding groove (14) is provided on the inner bottom wall of the filter bracket (10), one embedding groove (14) faces a filter bag assembly (30), and an end of the outer bag cage (32) is fitted and connected in the embedding groove (14) and abuts against the bottom wall of the embedding groove (14).

9. The high-seal anti-leakage bag for bag dust collector according to claim 1, characterized in that: An air outlet channel (21) is provided on the dust collector body (20) above the filter bracket (10), an air inlet channel (22) is provided on the dust collector body (20) below the filter bracket (10), the air inlet channel (22) is connected to the filter bracket (10), and the air outlet channel (21) is connected to the inside of the filter bag body (31), and an ash hopper (27) is provided on the dust collector body (20) directly below the filter bracket (10).

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