A bag filter for high viscosity materials
By combining an inverted trapezoidal filter cartridge with a pressure release device, the problem of poor flowability of high-viscosity materials is solved, achieving efficient filtration and recovery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI ZHIZHI BOYUE PHOTOELECTRIC TECH CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-07
Smart Images

Figure CN224462355U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bag filter technology, specifically a bag filter for high-viscosity materials. Background Technology
[0002] High-viscosity materials, due to their special physical properties (such as poor flowability, easy adhesion, and high filtration resistance), often face problems such as low filtration efficiency, easy equipment clogging, and high maintenance costs in industrial production. Therefore, bag filters are needed to filter high-viscosity materials. A bag filter is a filtration device that achieves solid-liquid or gas-solid separation based on filter bags. With its advantages of simple structure, flexible operation, and low cost, it is widely used in chemical, food, pharmaceutical, water treatment, and environmental protection fields. The material flows from the inside of the filter bag to the outside. Particles larger than the pore size of the filter bag are trapped on the surface to form an initial filter cake layer. As filtration proceeds, the filter cake layer gradually thickens, and tiny particles smaller than the pore size are intercepted by the filter cake, achieving high-precision filtration. The high-viscosity material stored in the filter bag is easy to remove.
[0003] Existing bag filters mostly use vertical cylindrical filter bags. When high-viscosity materials flow from the vertical cylindrical filter bag to the bottom, they will adhere to the inner wall of the filter bag, resulting in poor flowability and the inability of high-viscosity materials to flow downward for filtration, which leads to raw material waste and reduced product recovery rate.
[0004] Therefore, it is necessary to provide a new bag filter for high-viscosity materials to solve the above-mentioned technical problems. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a bag filter for high-viscosity materials.
[0006] The bag filter for high-viscosity materials provided by this utility model includes:
[0007] The device housing has an internal cavity.
[0008] The filter cylinder has a cavity with fixed limit blocks inside. There are multiple sets of limit blocks. A filter plate is placed on top of the multiple sets of limit blocks. The top of the filter plate has through holes. There are multiple sets of through holes. A filter cylinder is fixedly connected inside each of the multiple sets of through holes. The multiple sets of filter cylinders are cylinders that gradually decrease in size from top to bottom. The side cross-section is an inverted trapezoid.
[0009] Preferably, a sealing cover is provided on the top of the device housing, and a compression sealing ring is fixed at the connection between the sealing cover and the device housing. There are two sets of sealing rings, and fixing bolts are installed on the edges of both sets of sealing rings. A handle is fixedly connected to the top of the sealing cover. The top of the filter can be sealed by balancing the sealing rings with the sealing cover.
[0010] Preferably, the top of the sealing cover has a through hole, and a transmission pipe is fixedly connected inside the through hole. An air valve is fixedly connected to the bottom of the transmission pipe, and an air jet pipe is fixedly connected to the bottom of the air valve. Multiple sets of air jet pipes are provided, each corresponding to the position of the filter cartridge. By using the air valve in conjunction with the air jet pipe, air pressure can be released to the material.
[0011] Preferably, the top of the sealing cap has a through hole, and a barometer is installed inside the through hole. The barometer can be used to monitor the internal air pressure of the filter.
[0012] Preferably, a support frame is fitted on the outside of each of the multiple filter cartridges, and the shape of the filter cartridges can be maintained by the support frame.
[0013] Preferably, a through hole is provided on one side of the device housing, a collection tray is fixedly connected to the inner wall of the cavity of the device housing, a drain pipe is fixedly connected to one side of the collection tray, and one end of the drain pipe passes through the through hole to the outside of the device housing. The liquid attached to the inside of the device housing can be collected and discharged through the collection tray.
[0014] Preferably, a feed pipe is fixedly connected to one side of the device housing, and a discharge pipe is fixedly connected to one side of the device housing. The feed pipe and discharge pipe can be used to transfer materials.
[0015] Preferably, the bottom of the device housing is fixedly connected with support feet on all four sides, which can support the entire device.
[0016] Compared with related technologies, the bag filter for high-viscosity materials provided by this utility model has the following beneficial effects:
[0017] This utility model provides a bag filter for high-viscosity materials;
[0018] 1. This utility model can filter high-viscosity materials through the filter cylinders. When high-viscosity materials need to be filtered, the high-viscosity materials are fed into the top of the device housing through the feed pipe. The high-viscosity materials flow into the multiple sets of filter cylinders fixedly connected to the filter plate. The inverted trapezoidal filter cylinders increase the flow rate of the high-viscosity materials. The filter bags block and filter the high-viscosity materials. Excess liquid flows to the bottom of the device housing and is discharged from the device through the discharge pipe, thereby achieving the filtration of high-viscosity materials.
[0019] 2. This utility model can accelerate the filtration speed by releasing air pressure to the high-viscosity material through the air valve and the air jet pipe. When the high-viscosity material flows into the multiple sets of filter cylinders fixedly connected to the filter plate for filtration, the air can be controlled to enter the air valve through the transmission pipe and the air can be diverted through the air jet pipe. The air pressure is released to the high-viscosity material at the corresponding position of the filter cylinder, thereby accelerating the filtration speed of the high-viscosity material. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of the bag filter for high-viscosity materials according to this utility model.
[0021] Figure 2 This is a top cross-sectional view of the bag filter for high-viscosity materials according to this utility model.
[0022] Figure 3 This is a front cross-sectional view of the bag filter for high-viscosity materials according to this utility model.
[0023] Figure 4 This is a side cross-sectional view of the bag filter for high-viscosity materials according to this utility model.
[0024] The following are the labels in the diagram: 1. Device casing; 2. Sealing cover; 3. Sealing ring; 4. Fixing bolt; 5. Barometer; 6. Transfer pipe; 7. Handle; 8. Feed pipe; 9. Discharge pipe; 10. Support leg; 11. Drain pipe; 12. Filter plate; 13. Filter cylinder; 14. Support frame; 15. Limiting block; 16. Air valve; 17. Air jet pipe; 18. Collection tray. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0026] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0027] Please see Figures 1 to 4 This utility model provides a bag filter for high-viscosity materials, the bag filter for high-viscosity materials comprising:
[0028] The device housing 1 has a cavity inside;
[0029] The filter cylinder 13 has a cavity with a fixed connection of a limiting block 15. Multiple sets of limiting blocks 15 are provided. A filter plate 12 is placed on the top of the multiple sets of limiting blocks 15. The top of the filter plate 12 has a through hole. Multiple sets of through holes are provided. A filter cylinder 13 is fixedly connected inside each of the multiple sets of through holes. The multiple sets of filter cylinders 13 are cylinders that gradually decrease in size from top to bottom. The side cross-section is an inverted trapezoid.
[0030] It should be noted that when high-viscosity materials need to be filtered, the high-viscosity material is fed into the top of the inner shell 1 of the device through the feed pipe 8. The high-viscosity material flows into the multiple sets of filter cylinders 13 fixedly connected to the filter plate 12. The inverted trapezoidal filter cylinders 13 increase the flow rate of the high-viscosity material. The filter bags block and filter the high-viscosity material. Excess liquid flows to the bottom of the inner shell 1 of the device and is discharged from the device through the discharge pipe 9, thereby achieving the filtration of high-viscosity materials. When the high-viscosity material flows into the multiple sets of filter cylinders 13 fixedly connected to the filter plate 12 for filtration, the air in the transmission pipe 6 can be controlled to enter the air valve 16, and the air can be diverted through the jet pipe 17. The air pressure is released to the high-viscosity material at the corresponding position of the filter cylinder 13, thereby accelerating the filtration speed of the high-viscosity material.
[0031] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 The top of the device housing 1 is provided with a sealing cover 2. A compression sealing ring 3 is fixed at the connection between the sealing cover 2 and the device housing 1. There are two sets of sealing rings 3. The edges of the two sets of sealing rings 3 are equipped with fixing bolts 4. A handle is fixedly connected to the top of the sealing cover 2. The top of the filter can be sealed by the sealing cover 2 and the sealing rings 3.
[0032] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 The top of the sealing cover 2 has a through hole, and a transmission pipe 6 is fixedly connected inside the through hole. A gas valve 16 is fixedly connected to the bottom of the transmission pipe 6, and a jet pipe 17 is fixedly connected to the bottom of the gas valve 16. Multiple sets of jet pipes 17 are provided and correspond to the positions of the filter cylinder 13 respectively. The gas pressure can be released to the material by balancing the jet pipes 17 through the set gas valves 16.
[0033] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 The top of the sealing cover 2 has a through hole, and a barometer 5 is installed inside the through hole. The internal air pressure of the filter can be monitored by the barometer 5.
[0034] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 Each of the multiple filter cartridges 13 is fitted with a support frame 14 on its outer side, and the shape of the filter cartridge 13 can be maintained by the support frame 14.
[0035] In the embodiments of this utility model, please refer to Figure 1 and Figure 4A through hole is provided on one side of the device housing 1. A collection tray 18 is fixedly connected to the inner wall of the cavity of the device housing 1. A drain pipe 11 is fixedly connected to one side of the collection tray 18. One end of the drain pipe 11 passes through the through hole to the outside of the device housing 1. The liquid attached to the inside of the device housing 1 can be collected and discharged through the collection tray 18.
[0036] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 A feed pipe 8 is fixedly connected to one side of the device housing 1, and a discharge pipe 9 is fixedly connected to one side of the device housing 1. Materials can be transferred through the feed pipe 8 and the discharge pipe 9.
[0037] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 The bottom of the device housing 1 is fixedly connected with support feet 10 on all four sides, and the entire device can be supported by the support feet 10.
[0038] The working principle of the bag filter for high-viscosity materials provided by this utility model is as follows:
[0039] In use, when high-viscosity materials need to be filtered, the high-viscosity material is fed into the top of the device housing 1 through the feed pipe 8. The high-viscosity material flows into the multiple sets of filter cylinders 13 fixedly connected to the filter plate 12. The inverted trapezoidal filter cylinders 13 increase the flow rate of the high-viscosity material. The filter bags block and filter the high-viscosity material. Excess liquid flows to the bottom of the device housing 1 and is discharged from the device through the discharge pipe 9, thereby achieving the filtration of high-viscosity materials. When the high-viscosity material flows into the multiple sets of filter cylinders 13 fixedly connected to the filter plate 12 for filtration, the air inlet valve 16 can be controlled by the transmission pipe 6, and the air can be diverted through the jet pipe 17 to release air pressure to the high-viscosity material at the corresponding position of the filter cylinder 13, thereby accelerating the filtration speed of the high-viscosity material.
[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A bag filter for high-viscosity materials, characterized in that, include: The device housing (1) has a cavity inside; The filter cylinder (13) has a limiting block (15) fixedly connected inside the cavity. Multiple sets of limiting blocks (15) are provided. A filter plate (12) is placed on the top of the multiple sets of limiting blocks (15). The top of the filter plate (12) is provided with a through hole. Multiple sets of through holes are provided. A filter cylinder (13) is fixedly connected inside the multiple sets of through holes. The multiple sets of filter cylinders (13) are cylinders that gradually shrink from top to bottom. The side cross-section is an inverted trapezoid.
2. A bag filter for high-viscosity materials according to claim 1, characterized in that: The top of the device housing (1) is provided with a sealing cover (2). A compression sealing ring (3) is fixed at the connection between the sealing cover (2) and the device housing (1). There are two sets of sealing rings (3). The edges of the two sets of sealing rings (3) are equipped with fixing bolts (4). A handle is fixedly connected to the top of the sealing cover (2).
3. A bag filter for high-viscosity materials according to claim 2, characterized in that: The top of the sealing cover (2) has a through hole, and a transmission pipe (6) is fixedly connected inside the through hole. A gas valve (16) is fixedly connected to the bottom of the transmission pipe (6), and a jet pipe (17) is fixedly connected to the bottom of the gas valve (16). Multiple sets of jet pipes (17) are provided, each corresponding to the position of the filter cylinder (13).
4. A bag filter for high-viscosity materials according to claim 2, characterized in that: The top of the sealing cover (2) has a through hole, and a barometer (5) is installed inside the through hole.
5. A bag filter for high-viscosity materials according to claim 1, characterized in that: Each of the multiple filter cartridges (13) is fitted with a support frame (14) on its outer side.
6. A bag filter for high-viscosity materials according to claim 1, characterized in that: A through hole is provided on one side of the device housing (1), and a collection tray (18) is fixedly connected to the inner wall of the cavity of the device housing (1). A drain pipe (11) is fixedly connected to one side of the collection tray (18), and one end of the drain pipe (11) passes through the through hole to the outside of the device housing (1).
7. A bag filter for high-viscosity materials according to claim 1, characterized in that: A feed pipe (8) is fixedly connected to one side of the device housing (1), and a discharge pipe (9) is fixedly connected to one side of the device housing (1).
8. A bag filter for high-viscosity materials according to claim 1, characterized in that: The bottom of the device housing (1) is fixedly connected with support feet (10) on all four sides.