Industrial bag filter

Abstract

The utility model discloses an industrial bag filter, its characterized in that, including cylinder body, cylinder cover, filter bag and heating device, the heating device includes heating pipe and heating body, the cylinder body is the open cylinder, the heating pipe is along the inner wall of cylinder body and is spirally wound, the heating body covers the outer wall of cylinder body, the open end of cylinder body is detachably installed with filter bag, and filter bag is contained in cylinder body, and the cylinder cover is connected with cylinder body. An industrial bag filter, through the heating pipe of inside, filter bag periphery addition in cylinder body, the heating body is added in the outside of cylinder body, can effectively solve low freezing point solvent, oil or mixed solvent enters the filter after, because temperature reduces, or when liquid temperature drops when reusing after stopping, thereby lead to the problem that filter bag filter hole is blocked. Improved filtration efficiency and filtrate quality.

Description

Technical Field

[0001] This utility model belongs to the field of bag filter technology and relates to an industrial bag filter. Background Technology

[0002] In industrial production processes, bag filters are widely used for filtering various liquids. However, when filtering solvents, oils, or mixed solvents with low freezing points, these materials, in a molten state, enter the cold bag filter. The temperature drops further, causing the material to precipitate on the filter bag and clog its micropores. Even if a new filter bag filters smoothly initially, after use, the low-freezing-point solvents will clog the filter pores as the temperature drops, preventing the solvent, oil, or mixed solvent from passing through. Furthermore, the clogging of the filter pores prevents the solvent, oil, or mixed solvent from passing through, leading to increased pressure inside the filter. In such cases, the seams of the filter bag or the filter cloth itself may tear due to insufficient strength, ultimately resulting in substandard filtrate.

[0003] The aforementioned problems severely affect filtration efficiency and filtrate quality, limiting the application of bag filters in the filtration of materials with low freezing points. Utility Model Content

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] An industrial bag filter includes a cartridge body, a cartridge cover, a filter bag, and a heating device, wherein the heating device includes a heating tube and a heating element;

[0006] The cylinder body is an open cylinder, the heating tube is spirally wound along the inner wall of the cylinder body, and the heating element covers the outer wall of the cylinder body; a filter bag is detachably installed at the open end of the cylinder body, the filter bag is housed in the cylinder body, and the cylinder cover is connected to the cylinder body.

[0007] As a further embodiment of this utility model: one end of the heating tube is provided with a first inlet and the other end is provided with a first outlet, both the first inlet and the first outlet extending from inside the cylinder body to outside the cylinder body; the first inlet is located at the upper side of the cylinder body, and the first outlet is located at the lower side of the cylinder body.

[0008] As a further embodiment of this utility model: the heating body is a cylinder, the heating body is provided with a second inlet and a second outlet, the second inlet is located at the upper side of the heating body, and the second outlet is located at the bottom of the heating body.

[0009] As a further embodiment of this utility model: the cylinder body is provided with a feed inlet, a discharge outlet and a discharge outlet, the feed inlet is located at the upper side of the cylinder body, the discharge outlet is located at the lower side of the cylinder body, and the discharge outlet is located at the bottom of the cylinder body.

[0010] As a further embodiment of this utility model: the distance between the extended filter bag and the heating tube is 0-5mm.

[0011] As a further embodiment of this utility model, it also includes a clamping ring. The inner side of the upper end of the cylinder body is provided with an annular groove, and the clamping ring is engaged with the annular groove to fix the filter bag.

[0012] As a further embodiment of this utility model: a first annular boss extends circumferentially from the top of the cylinder body, and a second annular boss extends circumferentially from the bottom of the cylinder cover. The first annular boss and the second annular boss are provided with a plurality of mounting holes corresponding to each other, and bolts pass through the mounting holes to connect the first annular boss and the second annular boss.

[0013] As a further embodiment of this utility model, a safety valve interface is provided at the upper end of the cylinder cover.

[0014] As a further embodiment of this utility model, a pressure gauge interface is provided at the upper end of the cylinder cover.

[0015] As a further embodiment of this utility model, it also includes a cover opening device and a support device; the cover opening device includes a connecting plate, a bearing, a swing rod, a connecting rod and a locking nut, the swing rod has an L-shaped structure and the upper part of the connecting rod is threaded;

[0016] One end of the connecting plate is connected to the upper side of the cylinder body, and the other end of the connecting plate is connected to one end of the swing rod through the bearing; the other end of the swing rod is connected to one end of the connecting rod through the locking nut, and the other end of the connecting rod is connected to the top of the cylinder cover;

[0017] The support device includes several support rods, which are connected to the lower part of the heating element.

[0018] The beneficial effects of this utility model are:

[0019] An industrial bag filter, by adding heating pipes inside the filter body and around the filter bag, and adding a heating element outside the filter body, effectively solves the problem of filter bag pores becoming clogged due to temperature drop when low-freezing-point solvents, oils, or mixed solvents enter the filter, or when the liquid temperature drops after being shut down and then restarted. This improves filtration efficiency and filtrate quality.

[0020] In industrial production scenarios, a large amount of heat energy is often discharged. By connecting heating pipes and heating elements to these heat-dissipating devices, this waste heat can be fully utilized to heat industrial bag filters, effectively controlling energy consumption costs. Therefore, an industrial bag filter possesses high economic efficiency and practicality, making it suitable for widespread application in industrial production. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of an industrial bag filter;

[0022] Figure 2 This is a top-down structural diagram of an industrial bag filter;

[0023] Figure 3 This is a schematic diagram of the connection between the cartridge body and the cartridge cover of an industrial bag filter;

[0024] Figure 4 This is a schematic diagram of the connection between the connecting plate and the swing rod of an industrial bag filter.

[0025] Figure 5 This is a schematic diagram of the connection between the pendulum rod and the connecting rod of an industrial bag filter;

[0026] 1-Cylinder body, 11-Inlet, 12-Outlet, 13-Discharge port, 14-First annular boss

[0027] 2-Cylinder cover, 21-Safety valve interface, 22-Pressure gauge interface, 23-Second annular boss.

[0028] 3-Filter bag,

[0029] 41-Heating element, 411-First inlet, 412-First outlet

[0030] 42-Heating element, 421-Second inlet, 422-Second outlet

[0031] 5-Pressure ring,

[0032] 6- Bolts

[0033] 71-Connecting plate, 72-Bearing, 73-Swing rod, 74-Connecting rod, 75-Locking nut, 76-Long rod,

[0034] 81-Support rod. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. It should be understood that this application is not limited to the exemplary embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0036] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0039] like Figure 1 and 2 As shown, an industrial bag filter includes a cylindrical body 1, a cover 2, a filter bag 3, and a heating device. The heating device includes a heating tube 41 and a heating element 42. The cylindrical body 1 is an open cylinder. The heating tube 41 is spirally wound along the inner wall of the cylindrical body 1, and the heating element 42 covers the outer wall of the cylindrical body 1. The filter bag 3 is detachably installed at the open end of the cylindrical body 1 and is housed inside the cylindrical body 1. The cover 2 is connected to the cylindrical body 1.

[0040] Specifically, the cylinder body 1 and the cylinder cover 2 are connected to each other, forming a closed cavity. The filter bag 3 is installed at the opening of the cylinder body 1. The filter medium flows into the filter bag 3, is filtered by the filter bag 3, enters the interior of the cylinder body 1, and is discharged through the outlet provided on the cylinder body 1. The filter medium is the material to be filtered, which is a liquid.

[0041] A heating tube 41 is installed on the inner wall of the cylinder body 1, which provides heat to the filter medium inside the filter bag 3. When there are solids in the filtered liquid, the process of the heated liquid flowing out of the filter bag 3 will be smoother under the action of the heating tube 41. In particular, the heating tube 41 adopts a spiral design, which significantly increases the heat dissipation area of ​​the pipe and helps to improve the heating effect.

[0042] A heating element 42 is provided on the outside of the cylinder body 1. The heating element 42 not only serves to keep the liquid warm, but also further heats the liquid. When the filtered liquid is discharged from the cylinder body 1, the heating element 42 ensures that the pipe at the outlet of the cylinder body 1 also maintains a certain temperature, thereby effectively preventing the outlet pipe from being blocked due to liquid solidification.

[0043] In practical applications, heating tube 41 and heating element 42 can be simultaneously supplied with heat sources such as liquid or gas, resulting in a larger heating area and higher heating efficiency, which can better meet the anti-condensation requirements in the liquid filtration process.

[0044] An industrial bag filter, by adding heating pipes 41 inside the cylinder body 1 and around the filter bag 3, and adding a heating element 42 outside the cylinder body 1, can effectively solve the problem of filter bag pores becoming clogged due to temperature drop after low freezing point solvents, oils, or mixed solvents enter the filter, or when the liquid temperature drops after being shut down and then put back into use. This improves filtration efficiency and filtrate quality.

[0045] In industrial production scenarios, a large amount of heat energy is often discharged. By connecting the heating tube 41 and the heating element 42 to these heat discharge devices, this waste heat can be fully utilized to heat the industrial bag filter, effectively controlling energy consumption costs. Therefore, this industrial bag filter has high economic efficiency and practicality, making it suitable for widespread application in industrial production.

[0046] like Figure 2 As shown in the top view cross-sectional diagram, from the outside to the inside are heating element 42, cylinder body 1, heating tube 41 and filter bag 3, wherein cylinder body 1 has a certain wall thickness; on the same side at different heights, there are feed inlet 11, discharge outlet 12, first inlet 411 and first outlet 412.

[0047] In this embodiment, as Figure 1As shown, one end of the heating tube 41 is provided with a first inlet 411 and the other end is provided with a first outlet 412. The first inlet 411 and the first outlet 412 extend from inside the cylinder body 1 to outside the cylinder body 1, respectively. The first inlet 411 is located at the upper side of the cylinder body 1, and the first outlet 412 is located at the lower side of the cylinder body 1. The first inlet 411 and the first outlet 412 are connected to an external heating system.

[0048] Specifically, the heating tube 41 is located inside the cylindrical body 1. The first inlet 411 and the first outlet 412 are installed through the cylindrical body 1, thus providing support for the entire spiral-shaped heating tube 41. No other fixing connectors are needed for the heating tube 41 within the cylindrical body 1. For connection to external heat dissipation equipment, the first inlet 411 and the first outlet 412 are located on the same side of the cylindrical body 1. To facilitate heat flow from top to bottom, the first inlet 411 is located at the upper end of the cylindrical body 1, and the first outlet 412 is located at the lower end of the cylindrical body 1. The heat source flows from top to bottom within the spiral-shaped heating tube 41, heating the cylindrical body 1.

[0049] In this embodiment, as Figure 1 As shown, the heating body 42 is a cylinder. The heating body 42 is provided with a second inlet 421 and a second outlet 422. The second inlet 421 is located at the upper side of the heating body 42, and the second outlet 422 is located at the bottom of the heating body 42.

[0050] Specifically, the heating element 42 covers the cylindrical body 1, with clearance treatment at the first inlet 411, first outlet 412, discharge port 12, and discharge port 13. The inlet 11 is located at the top of the cylindrical body 1. Whether the cylindrical body 1 covers the inlet 11 is selected based on the production process and manufacturing cost of the heating element 42. In this embodiment, the heating element 42 does not cover the inlet 11; it begins to cover it at the same level as the filter bag 3. To facilitate the flow of heat source from high to low, the heating element 42 also has a corresponding second inlet 421 and second outlet 422. The second inlet 421 is located at the upper end of the heating element 42, and the second outlet 422 is located at the lower end of the heating element 42. The heat source flows from top to bottom within the annular cavity of the heating element 42, heating the cylindrical body 1.

[0051] In this embodiment, as Figure 1 As shown, the cylinder body 1 is provided with a feed inlet 11, a discharge outlet 12 and a discharge outlet 13. The feed inlet 11 is located at the upper side of the cylinder body 1, the discharge outlet 12 is located at the lower side of the cylinder body 1, and the discharge outlet 13 is located at the bottom of the cylinder body 1.

[0052] Specifically, the filter medium enters through the inlet 11, passes through the filter bag 3 into the cylinder body 1, and is discharged from the outlet 12. Minor impurities may remain at the bottom of the cylinder body 1 after filtration; these are discharged through the outlet 13. During the cleaning process of the cylinder body 1, the outlet 12 and outlet 13, located on the side and bottom respectively, are opened simultaneously to ensure a more thorough cleaning of the cylinder body 1.

[0053] In this embodiment, the distance between the extended filter bag 3 and the heating tube 41 is 0-5mm.

[0054] Specifically, the material and size of the filter bag 3 are selected based on the properties of the filter medium and the filtration requirements. To prevent tearing, the filter bag 3 should fit snugly against the wall of the cylinder body 1 or be larger than the cylinder body 1. This ensures that the filter bag is not damaged by tension after being filled with solid material or liquid, and prevents tearing at the seams of the filter bag 3 or due to insufficient strength caused by increased pressure inside the cylinder body 1, thus guaranteeing the quality of the filtrate. Simultaneously, the closer the filter bag 3 is to the heating tube 41, the better it facilitates short-time heat transfer, promptly heating and melting the solidified material in the filter bag 3. If the working temperature of the filter medium is ≤100℃, the filter bag 3 can be made of nylon PA1012 material, which contains acids and alkalis, with a 5mm gap between the filter bag 3 and the heating tube 41. If the working temperature of the filter medium is >100℃, which contains acids and alkalis, the filter bag 3 can be made of PPS material, with a 2-3mm gap between the filter bag 3 and the heating tube 41, and can be placed directly against the surface.

[0055] In this embodiment, as Figure 1 As shown, it also includes a clamping ring 5. The inner side of the upper end of the cylinder body 1 is provided with an annular groove. The clamping ring 5 is engaged with the annular groove to fix the filter bag 3.

[0056] Specifically, the filter bag 3 is installed on the inner wall of the cylinder body 1 via the compression ring 5.

[0057] In this embodiment, as Figure 1 and 3 As shown, a first annular boss 14 extends circumferentially from the top of the cylinder body 1, and a second annular boss 23 extends circumferentially from the bottom of the cylinder cover 2. The first annular boss 14 and the second annular boss 23 are provided with several mounting holes corresponding to each other. Bolts 6 pass through the mounting holes to connect the first annular boss 14 and the second annular boss 23.

[0058] Specifically, the connection between the cylinder body 1 and the cylinder cover 2 is made by a ring of bolts 6 to ensure the stability and sealing of the connection between the two.

[0059] In this embodiment, as Figure 1 As shown, the upper end of the cylinder cover 2 is provided with a safety valve interface 21.

[0060] Specifically, the high temperature inside the cylinder body 1 will convert the liquid into gas. As heating continues, the amount of water vapor inside the cylinder body 1 will continuously increase, and the pressure will also rise accordingly. A safety valve is connected to the safety valve port 21. When the pressure inside the cylinder body 1 exceeds the preset safety value, the valve will automatically open to release some gas or liquid to reduce the pressure inside the cylinder body 1 and prevent the filter from being damaged or posing a danger due to overpressure.

[0061] In this embodiment, as Figure 1 As shown, the upper end of the cylinder cover 2 is provided with a pressure gauge interface 22.

[0062] Specifically, the pressure gauge detects the hydraulic and pneumatic pressure inside the cylinder body 1, making it easy for manual inspection of the pressure value inside the cylinder body 1.

[0063] In this embodiment, as Figure 1 , 4 As shown in Figure 5, it also includes a cover opening device and a support device; the cover opening device includes a connecting plate 71, a bearing 72, a swing rod 73, a connecting rod 74, and a locking nut 75. The swing rod 73 has an L-shaped structure, and the upper part of the connecting rod 74 is threaded; one end of the connecting plate 71 is connected to the upper side of the cylinder body 1, and the other end of the connecting plate 71 is connected to one end of the swing rod 73 through the bearing 72; the other end of the swing rod 73 is connected to one end of the connecting rod 74 through the locking nut 75, and the other end of the connecting rod 74 is connected to the top of the cylinder cover 2; the support device includes several support rods 81, and the support rods 81 are connected to the lower part of the heating element 42.

[0064] Specifically, the connecting rod 74 moves up and down at the connection point of the swing rod 73. When the connecting rod 74 moves upward, the cylinder cover 2 opens. The surface of the connecting rod 74 is threaded and fixed by locking nuts 75 at both ends of the swing rod. The swing rod 73 can rotate at the connecting plate 71. When the cylinder cover 2 is opened, the swing rod 73 is rotated, and the cylinder cover 2 rotates away from the opening of the cylinder body 1. A long rod 76 is connected at the corner of the L-shaped swing rod 73. The long rod 76 and the swing rod 73 form a triangular area, increasing the stability of the swing rod 73. Specifically, the support rod 81 provides support for the entire filter. The support rod 81 can be integrally formed with the heating element 42, or it can be welded to the heating element 42 first. Alternatively, the support rod 81 can be welded to the lower part of the heating element 42 after the cylinder body 1 and the heating element 42 are assembled.

[0065] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0066] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An industrial bag filter, characterized in that, It includes a cylinder body, a cylinder cover, a filter bag, and a heating device, wherein the heating device includes a heating tube and a heating element; The cylinder body is an open cylinder, the heating tube is spirally wound along the inner wall of the cylinder body, and the heating element covers the outer wall of the cylinder body; a filter bag is detachably installed at the open end of the cylinder body, the filter bag is housed in the cylinder body, and the cylinder cover is connected to the cylinder body.

2. The industrial bag filter according to claim 1, characterized in that, The heating tube has a first inlet at one end and a first outlet at the other end. Both the first inlet and the first outlet extend from inside the cylindrical body to outside the cylindrical body. The first inlet is located at the upper side of the cylindrical body, and the first outlet is located at the lower side of the cylindrical body.

3. The industrial bag filter according to claim 2, characterized in that, The heating element is a cylinder, and the heating element has a second inlet and a second outlet. The second inlet is located at the upper side of the heating element, and the second outlet is located at the bottom of the heating element.

4. The industrial bag filter according to claim 1, characterized in that, The cylinder body is provided with a feed inlet, a discharge outlet and a discharge outlet. The feed inlet is located at the upper side of the cylinder body, the discharge outlet is located at the lower side of the cylinder body, and the discharge outlet is located at the bottom of the cylinder body.

5. The industrial bag filter according to claim 1, characterized in that, The distance between the extended filter bag and the heating tube is 0-5mm.

6. The industrial bag filter according to claim 5, characterized in that, It also includes a clamping ring. The inner side of the upper end of the cylinder body is provided with an annular groove. The clamping ring is engaged with the annular groove to fix the filter bag.

7. The industrial bag filter according to claim 6, characterized in that, The top circumference of the cylinder body has a first annular boss, and the bottom circumference of the cylinder cover has a second annular boss. The first annular boss and the second annular boss are provided with a plurality of mounting holes corresponding to each other. Bolts pass through the mounting holes to connect the first annular boss and the second annular boss.

8. The industrial bag filter according to claim 1, characterized in that, The upper end of the cylinder cover is equipped with a safety valve interface.

9. The industrial bag filter according to claim 1, characterized in that, The upper end of the cylinder cover is provided with a pressure gauge interface.

10. The industrial bag filter according to claim 1, characterized in that, It also includes a cover opening device and a support device; the cover opening device includes a connecting plate, a bearing, a swing rod, a connecting rod and a locking nut, the swing rod has an L-shaped structure and the upper part of the connecting rod is threaded; One end of the connecting plate is connected to the upper side of the cylinder body, and the other end of the connecting plate is connected to one end of the swing rod through the bearing; the other end of the swing rod is connected to one end of the connecting rod through the locking nut, and the other end of the connecting rod is connected to the top of the cylinder cover; The support device includes several support rods, which are connected to the lower part of the heating element.

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