Industrial dust collector with filter cartridges arranged in a cascade

Abstract

The utility model relates to an industrial dust collector with filter cartridges arranged in a ladder form, comprising: a box, a flower plate is arranged in the box, a plurality of filter mechanisms are arranged on the flower plate, the length of the filter mechanisms increases from left to right, and the filter mechanisms are used for dust filtration treatment; the filter mechanism comprises a fixing ring, an adjusting assembly is fixedly connected to the bottom of the fixing ring, and a filter cartridge is sleeved outside the adjusting assembly; the adjusting assembly comprises: an upper connecting ring, a plurality of connecting rods are equidistantly arranged on one end of the upper connecting ring in a circumferential direction, and the filter cartridge total length can be adjusted by rotation through the arrangement of the adjusting assembly, the filter cartridges increase in an arithmetic progression along the air inlet direction, the filter cartridges can be flexibly reconstructed without relying on fixed specification supports, the cumbersome operation of overall replacement of the supports in the traditional scheme is avoided, the convenience of equipment working condition adaptation is significantly improved, and the standardized structure of the adjusting assembly makes the supports not need to be customized according to the length difference of the filter cartridges, thereby fundamentally reducing the storage demand of multi-specification supports.

Description

Technical Field

[0001] This utility model relates to the field of industrial dust collector technology, specifically an industrial dust collector with filter cartridges arranged in a stepped manner. Background Technology

[0002] As the core filtration element of industrial dust collectors, the arrangement of filter cartridges directly affects the dust removal efficiency and operational stability of the equipment. To address the problem of uneven gas flow and dust removal flow in traditional dust collectors, existing technologies propose a design where filter cartridges are arranged in an arithmetic progression. This means that along the air inlet direction, the length of the filter cartridges increases sequentially. By increasing the filtration area of ​​the rear filter cartridges, the load on filter cartridges at different positions is balanced, preventing localized overload or premature damage caused by uneven airflow distribution.

[0003] However, in the aforementioned tiered arrangement design, the filter cartridges and their supports are mostly fixed connections. When the filter cartridge length increases according to an arithmetic progression, the length of the support also needs to increase accordingly. This necessitates stocking supports of various specifications to match the filter cartridge lengths. When actual operating conditions change and adjustments to the arithmetic parameters of the filter cartridge length are required (e.g., changing tolerances or starting lengths), the entire set of support of the corresponding length must be replaced. This is not only cumbersome and time-consuming, but the large inventory of supports of different specifications further increases the equipment's maintenance costs, becoming a prominent problem restricting the flexible adaptation of industrial dust collectors to different operating conditions. Therefore, a new technical solution is needed to address this issue. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide an industrial dust collector with filter cartridges arranged in a stepped manner.

[0005] To achieve the objective of this utility model, the technical solution adopted is as follows: An industrial dust collector with filter cartridges arranged in a stepped manner is designed, comprising:

[0006] The housing has a perforated plate inside, and multiple filter mechanisms are installed on the perforated plate. The length of the filter mechanisms increases from left to right and they are used for dust filtration.

[0007] The filtration mechanism includes a fixed ring, an adjustment component is fixedly connected to the bottom of the fixed ring, and a filter cylinder is sleeved on the outside of the adjustment component;

[0008] The adjustment component includes:

[0009] The upper connecting ring has multiple connecting rods equidistantly arranged at one end along the circumference, and the other ends of the multiple connecting rods are connected to the lower connecting ring.

[0010] An externally threaded connecting pipe is fixedly connected to the end of the upper connecting ring away from the connecting rod.

[0011] An internal threaded hole is formed on the inner wall of the lower connecting ring and is adapted to the external threaded connecting pipe.

[0012] Preferably, a clamp is fitted on the outer side of the filter cartridge, the clamp being used to fasten the filter cartridge to the outer surface of the adjustment assembly.

[0013] Preferably, a plurality of backflush pipes are fixedly connected to the inner cavity of the box above the perforated plate. Each of the plurality of backflush pipes is connected to a plurality of jet nozzles at one end near the perforated plate, and the plurality of jet nozzles are respectively aligned with the middle of the plurality of adjustment components. One end of each of the plurality of backflush pipes extends through the box to the outside of the box. A conduit is connected between the plurality of backflush pipes on the outside of the box. A pulse valve is installed at one end of the conduit, and an air manifold is connected to the other end of the pulse valve.

[0014] Preferably, the fixing ring has fixing bolts on both sides of the end away from the adjusting component, and the fixing bolts are threaded to the surface of the tube sheet.

[0015] Preferably, the outer wall of the connecting rod is coplanar with the outer walls of the upper connecting ring and the lower connecting ring, and the outer walls of the connecting rod, the upper connecting ring and the lower connecting ring are all smooth.

[0016] Preferably, one end of the housing is connected to an air inlet pipe, and the upper side of the end of the housing away from the air inlet pipe is connected to an air outlet pipe, with the air inlet pipe positioned close to the side of the shortest filter cartridge.

[0017] Preferably, the top of the box is provided with a removable box cover, and the end of the box cover near the box body is provided with a sealing gasket for sealing.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This invention utilizes the combination of an external threaded connecting pipe and an internal threaded hole to adjust the total length of the filter cartridge by rotation. This allows the filter cartridge to be flexibly reconfigured along the air inlet direction according to an arithmetic progression (such as tolerance and initial length) without relying on a fixed-specification bracket. When actual operating conditions (such as air volume and dust concentration) change, only the on-site adjustment component is needed to adjust the gradient parameters of the filter cartridge length, avoiding the cumbersome operation of replacing the entire bracket in traditional solutions. This significantly improves the convenience of adapting the equipment to operating conditions. Moreover, the standardized structure of the adjustment component (upper connecting ring, connecting rod, lower connecting ring) eliminates the need for customized brackets based on differences in filter cartridge length, fundamentally reducing the need for stocking multiple specifications of brackets and lowering the complexity of inventory management and hardware costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0021] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the connection structure between the filter cartridge and the adjustment component of this utility model;

[0023] Figure 4 This is a schematic diagram of the connection structure of the adjustment component of this utility model.

[0024] In the diagram: 1. Housing; 11. Housing cover; 12. Air inlet pipe; 13. Air outlet pipe; 2. Air manifold; 21. Pulse valve; 22. Conduit; 23. Backflush pipe; 24. Jet nozzle; 3. Perforated plate; 31. Filter cartridge; 32. Fixing ring; 33. Clamp; 34. Upper connecting ring; 35. Fixing bolt; 36. External threaded connecting pipe; 37. Connecting rod; 38. Lower connecting ring; 39. Internal threaded hole. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0026] Example 1: An industrial dust collector with filter cartridges arranged in a stepped manner, see [link to example]. Figures 1 to 4 ,include:

[0027] Box 1, the inner cavity of the box 1 is provided with a perforated plate 3, and multiple filter mechanisms are provided on the perforated plate 3. The length of the filter mechanisms increases from left to right and is used for dust filtration.

[0028] The filtration mechanism includes a fixed ring 32, an adjustment component is fixedly connected to the bottom of the fixed ring 32, and a filter cylinder 31 is sleeved on the outside of the adjustment component.

[0029] The adjustment component includes:

[0030] The upper connecting ring 34 has multiple connecting rods 37 equidistantly arranged at one end along the circumference, and the other ends of the multiple connecting rods 37 are connected to the lower connecting ring 38.

[0031] The external threaded connecting pipe 36 is fixedly connected to the end of the upper connecting ring 34 away from the connecting rod 37;

[0032] An internal threaded hole 39 is formed on the inner wall of the lower connecting ring 38 and is adapted to the external threaded connecting pipe 36.

[0033] During operation, the overall length of the filter cartridge 31 can be adjusted by rotating the external threaded connecting pipe 36 and the internal threaded hole 39. This allows the filter cartridge 31 to be flexibly reconfigured along the air inlet direction using a gradual, arithmetic progression (such as tolerance and initial length) without relying on a fixed-specification bracket. When actual operating conditions (such as airflow and dust concentration) change, only the on-site adjustment components are needed to adjust the gradient parameters of the filter cartridge 31 length. This avoids the cumbersome operation of replacing the entire bracket in traditional solutions, significantly improving the ease of adapting the equipment to different operating conditions. Furthermore, the standardized structure of the adjustment components (upper connecting ring 34, connecting rod 37, lower...) allows for easy adjustment. The connecting ring 38) eliminates the need for customized brackets to accommodate variations in the length of the filter cartridges 31, fundamentally reducing the need for stocking brackets of various specifications, lowering inventory management complexity and hardware costs. Furthermore, the design of the filter cartridges 31 with their lengths increasing arithmetically along the airflow direction naturally adapts to the airflow characteristics of the dust collector, where "the front end has a small airflow and the rear end has a large airflow." Combined with the adjustment components, the length difference of the filter cartridges 31 is calibrated in real time, allowing the filtration area gradient of each filter cartridge 31 to dynamically match the actual airflow distribution. This avoids localized overload (damage to the filter cartridges 31) caused by the fixed length of traditional fixed brackets, significantly extending the service life of the filter cartridges 31.

[0034] For details, see Figure 3 The filter cartridge 31 is fitted with a clamp 33 on its outer side. The clamp 33 is used to fasten the filter cartridge 31 to the outer surface of the adjustment component. The elastic fastening effect of the clamp 33 can stably fit the filter cartridge 31 to the outside of the adjustment component, ensuring the sealing performance between the filter cartridge 31 and the bracket, preventing the dust-laden airflow from leaking from the connection, ensuring dust removal efficiency. Furthermore, the filter cartridge 31 can be quickly connected to the adjustment component through the clamp 33, and the filter cartridge 31 can be disassembled and assembled without the aid of tools. Especially in the scenario of multiple filter cartridges 31 arranged in a gradient, the replacement of a single filter cartridge 31 does not affect other filtration mechanisms, greatly improving maintenance efficiency.

[0035] Further, see Figure 1 and Figure 2 Multiple backflush pipes 23 are fixedly connected to the inner cavity of the box 1 above the tube sheet 3. Each of the multiple backflush pipes 23 is connected to a multiple jet nozzle 24 at one end near the tube sheet 3. The multiple jet nozzles 24 are respectively corresponding to the middle of the multiple adjustment components. One end of the multiple backflush pipes 23 extends through the box 1 to the outside of the box 1. The multiple backflush pipes 23 on the outside of the box 1 are connected to a conduit 22. One end of the conduit 22 is equipped with a pulse valve 21. The other end of the pulse valve 21 is connected to an air manifold 2. By setting the jet nozzles 24 to the middle of the adjustment components, the pulse cleaning airflow can directly act on the core filtration area of ​​the filter cartridge 31, thereby enabling backflush dust removal of the filter cartridge 31 without stopping the machine to clean the dust adhering to the surface of the filter cartridge 31. Backflush dust removal is a known technology and will not be described in detail here.

[0036] It is worth noting that, see Figure 3 The fixing ring 32 has fixing bolts 35 on both sides of the end away from the adjustment component, and the fixing bolts 35 are threaded to the surface of the tube sheet 3. The filter mechanism can be fixed on the tube sheet 3 by the threaded connection of the fixing bolts 35, ensuring the arithmetic accuracy of the filter cartridges 31 along the air inlet direction. At the same time, the detachable nature of the threaded connection provides a convenient interface for adjusting the length of the filter cartridges 31 or for overall maintenance, and the position adjustment or disassembly and maintenance of the filter mechanism can be achieved without the need for complicated tools.

[0037] It is worth noting that, see Figure 4 The outer wall of the connecting rod 37 is coplanar with the outer walls of the upper connecting ring 34 and the lower connecting ring 38, and the outer walls of the connecting rod 37, the upper connecting ring 34 and the lower connecting ring 38 are all smooth. The smooth coplanar outer walls of the upper connecting ring 34, the lower connecting ring 38 and the connecting rod 37 avoid the airflow turbulence points caused by the unevenness of the outer wall of the adjustment component, so that the dust-laden airflow can flow evenly along the surface of the filter cartridge 31. With the gradual increase of the length of the filter cartridge 31, the uniformity of the airflow distribution on the surface of the filtration mechanism is further optimized, reducing dust accumulation and filtration efficiency loss caused by local eddies, and avoiding wear on the filter cartridge 31 caused by the unevenness of the outer wall of the adjustment component, thus further extending the service life of the filter cartridge 31.

[0038] It is worth mentioning that, see Figure 2 One end of the housing 1 is connected to an air inlet pipe 12, and the upper side of the end of the housing 1 away from the air inlet pipe 12 is connected to an air outlet pipe 13. The air inlet pipe 12 is located close to the side of the shortest filter cartridge 31. By approaching the short filter cartridge 31 (front filter cartridge 31) through the air inlet pipe 12, the dust-laden airflow first passes through the short filter cartridge 31 with a smaller filtration area. As the airflow flows towards the long filter cartridge 31 (rear filter cartridge 31), the filtration area gradually increases. This forms a dynamic match with the actual airflow distribution characteristics of "small air volume at the front end and large air volume at the rear end" in the dust collector, which strengthens the natural balance of the load on the filter cartridge 31 and avoids the local overload caused by the concentrated load at the air inlet end of the traditional equal-length filter cartridge 31.

[0039] It is worth mentioning that, see Figure 4 The top of the housing 1 is provided with a removable cover 11, and the end of the cover 11 near the housing 1 is provided with a sealing gasket for sealing. The removable cover 11 provides a direct operating space for the adjustment, maintenance and replacement of the filter cartridge 31. Especially in the scenario of multiple filter cartridges 31 arranged in a gradient, the top filter mechanism can be directly accessed without disassembling other parts, which greatly shortens the maintenance time. In addition, the setting of the sealing gasket ensures the high airtightness of the inner cavity of the housing 1, avoids the leakage of dust-laden airflow and affects the dust removal effect, and prevents external impurities from entering and damaging the precision of the gradient arrangement of the filter cartridges 31.

[0040] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0041] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. An industrial dust collector with filter cartridges arranged in a stepped manner, characterized in that, include: Box (1), the inner cavity of the box (1) is provided with a perforated plate (3), and multiple filter mechanisms are provided on the perforated plate (3). The length of the filter mechanism increases from left to right and is used for dust filtration. The filtration mechanism includes a fixed ring (32), an adjustment component is fixedly connected to the bottom of the fixed ring (32), and a filter cylinder (31) is sleeved on the outside of the adjustment component; The adjustment component includes: The upper connecting ring (34) has multiple connecting rods (37) equidistantly arranged at one end along the circumference, and the other ends of the multiple connecting rods (37) are connected to the lower connecting ring (38). An externally threaded connecting pipe (36) is fixedly connected to the end of the upper connecting ring (34) away from the connecting rod (37); An internal threaded hole (39) is formed on the inner wall of the lower connecting ring (38) and is adapted to the external threaded connecting pipe (36).

2. An industrial dust collector with filter cartridges arranged in a stepped manner as described in claim 1, characterized in that, The filter cartridge (31) is fitted with a clamp (33) on its outer side, which is used to fasten the filter cartridge (31) to the outer surface of the adjustment assembly.

3. An industrial dust collector with filter cartridges arranged in a stepped manner as described in claim 1, characterized in that, Multiple backflush pipes (23) are fixedly connected to the inner cavity of the box (1) above the flower plate (3). Each of the multiple backflush pipes (23) is connected to a multiple jet head (24) at one end near the flower plate (3), and the multiple jet heads (24) are respectively corresponding to the middle of the multiple adjustment components. One end of the multiple backflush pipes (23) extends through the box (1) to the outside of the box (1). The multiple backflush pipes (23) on the outside of the box (1) are connected to a conduit (22). One end of the conduit (22) is equipped with a pulse valve (21), and the other end of the pulse valve (21) is connected to an air bag (2).

4. An industrial dust collector with filter cartridges arranged in a stepped manner as described in claim 1, characterized in that, The fixing ring (32) has fixing bolts (35) on both sides of the end away from the adjustment component, and the fixing bolts (35) are threaded to the surface of the flower plate (3).

5. An industrial dust collector with filter cartridges arranged in a stepped manner as described in claim 1, characterized in that, The outer side wall of the connecting rod (37) is coplanar with the outer side walls of the upper connecting ring (34) and the lower connecting ring (38), and the outer side walls of the connecting rod (37), the upper connecting ring (34) and the lower connecting ring (38) are all smooth.

6. An industrial dust collector with filter cartridges arranged in a stepped manner as described in claim 1, characterized in that, One end of the housing (1) is connected to an air inlet pipe (12), and the upper side of the end of the housing (1) away from the air inlet pipe (12) is connected to an air outlet pipe (13). The air inlet pipe (12) is located close to the side of the shortest filter cartridge (31).

7. An industrial dust collector with filter cartridges arranged in a stepped manner as described in claim 1, characterized in that, The top of the box (1) is provided with a removable box cover (11), and the end of the box cover (11) near the box (1) is provided with a sealing gasket for sealing.

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