Pressure device of belt filter press
By employing a meshing structure between the pressure roller and the pressure roller in the belt filter press, and hydraulic adjustment, the problem of insufficient filter cloth tension is solved, achieving a more efficient sludge dewatering effect.
Patent Information
- Application Number
- CN202423069936.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Due to the influence of filter cloth material and roller stress during the filtration process, belt filter presses have relatively low tension pressure, resulting in poor sludge treatment effect.
It adopts an interlocking structure of pressure roller and pressure roller, with the surfaces of the pressure roller and pressure roller having an arc-shaped structure and equipped with micro protrusions. The pressure filter gap is adjusted by a hydraulic component to provide adjustable pressure to enhance the squeezing effect of the filter cloth.
It improves sludge dewatering efficiency, increases the pressure of the filter cloth on the sludge, and promotes the effective release of water from the sludge.
Smart Images
Figure CN223620275U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of belt filter press technology, and in particular to a pressurizing device for a belt filter press. Background Technology
[0002] With the sustained, rapid, and stable development of my country's economy, the scale of urban sewage treatment has been increasing, and sludge production has also increased accordingly. However, due to my country's long-standing emphasis on "water treatment over sludge treatment," sludge treatment and disposal have not kept pace with sewage treatment, and the problem of sludge treatment and disposal has not been effectively solved, resulting in a very serious situation.
[0003] Belt filter presses are important sludge treatment equipment. They convert the tension of the filter cloth into pressure between the filter cloth and the rollers, thereby achieving the function of sludge dewatering. However, during the filtration process, the tension pressure of the filter cloth is relatively low due to the influence of the filter cloth material and roller stress. Utility Model Content
[0004] In view of the above problems, this utility model is proposed to provide a belt filter press pressurizing device that overcomes or at least partially solves the above problems, and can solve the problem of low pressure in belt filter presses, thereby achieving the effect of pressurizing belt filter presses.
[0005] Specifically, this utility model provides a belt filter press press device, which includes a frame, a double-layer filter cloth, and a first press assembly. The first press assembly includes a first pressure roller, a first pressure receiving roller, and a first pressure regulating mechanism. The first pressure receiving roller is mounted on the frame. The first pressure roller is reciprocally slidably mounted on the frame. The first pressure roller and the first pressure receiving roller are fitted with a clearance to form a first press gap for squeezing the double-layer filter cloth. The first pressure regulating mechanism is used to provide pressure to the first pressure roller and adjust the first press gap according to the thickness of the double-layer filter cloth.
[0006] Optionally, the first filter press assembly further includes a second pressure roller and a second pressure regulating mechanism; the second pressure roller is reciprocally slidably mounted on the frame; the second pressure roller and the first pressure roller are fitted with a clearance to form a second filter press gap for pressing the double-layer filter cloth; the second pressure regulating mechanism is used to provide pressure to the second pressure roller and adjust the second filter press gap according to the thickness of the double-layer filter cloth.
[0007] Optionally, the belt filter press press further includes a second filter press assembly; the second filter press assembly includes a third pressure roller, a second pressure roller, and a third pressure regulating mechanism.
[0008] Optionally, the first pressure regulating mechanism includes a hydraulic component; the hydraulic component is used to provide pressure to the first pressure roller and automatically adjust the size of the first filter gap when the first pressure roller is subjected to a reaction force, so that the double-layer filter cloth can pass through the first gap.
[0009] Optionally, the hydraulic assembly includes a cylinder, a slider, and a guide rail; the guide rail is fixedly mounted on the frame; the slider is slidably mounted on the guide rail and connected to one end of the first pressure roller; one end of the cylinder is mounted on the frame, and the other end is connected to the slider.
[0010] Optionally, the hydraulic assembly also includes a gap adjustment section for adjusting the sliding position of the first pressure roller.
[0011] Optionally, the cross-sections of the first pressure roller and the first pressure roller are gear-shaped; the first pressure roller and the first pressure roller mesh with each other; the concave and convex surfaces of the first pressure roller and the first pressure roller are arc-shaped structures.
[0012] Optionally, the surfaces of the first booster roller and the first pressure roller are provided with a plurality of micro protrusions.
[0013] In this invention, a belt filter press press device features a pressure roller and a pressure roller with gear-shaped cross-sections, which mesh with each other. The concave and convex surfaces of the pressure roller and pressure roller have arc-shaped structures, forming a surface-type pressure surface as they rotate in mesh. When the filter cloth, carrying sludge, passes through the filter press gap, it experiences gradually increasing surface pressure and a certain period of pressure, allowing more water to be extracted from the sludge.
[0014] Furthermore, in the belt filter press press device of this utility model, the surfaces of the pressure roller and the pressure roller are provided with staggered micro protrusions, which can make the filter cloth be subjected to "S"-shaped pressure on the transverse surface when the double-layer filter cloth passes through the filter gap, thereby destroying the overall structure of the sludge cake and making the sludge cake filter out more water.
[0015] Furthermore, in the belt filter press press device of this utility model, the pressure regulating mechanism can adjust the filter gap between the pressure roller and the pressure roller and provide pressure to the pressure roller.
[0016] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description
[0017] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:
[0018] Figure 1 This is a schematic structural diagram of a belt filter press pressurizing device according to an embodiment of the present invention;
[0019] Figure 2 yes Figure 1 Enlarged view of a portion of point A in the middle;
[0020] Figure 3 This is a schematic diagram of a miniature protrusion in a belt filter press press according to an embodiment of the present invention.
[0021] In the diagram: 1. Frame; 2. Second filter press assembly; 3. First pressure roller; 4. First filter press assembly; 5. First pressure regulating mechanism; 501. Slider; 502. Cylinder; 503. Guide rail; 504. Connector; 6. First pressure roller; 7. Second pressure roller; 8. Second pressure regulating mechanism; 9. First filter press gap; 10. Double-layer filter cloth; 11. Second filter press gap; 12. Micro protrusion. Detailed Implementation
[0022] The following reference Figures 1 to 3 This invention describes a belt filter press pressurizing device according to an embodiment of the present invention. In this description, it should be understood that 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.
[0023] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" 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, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0024] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0025] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0026] Figure 1 This is a schematic structural diagram of a belt filter press pressurizing device according to an embodiment of the present invention, as shown below. Figure 1 As shown, and refer to Figures 2 to 3 This utility model provides a belt filter press pressurizing device, which includes a frame 1, a double-layer filter cloth 10, and a first filter press assembly 4. The first filter press assembly 4 includes a first pressure roller 6, a first pressure roller 3, and a first pressure regulating mechanism 5.
[0027] The first pressure roller 3 is fixedly mounted on the frame 1, and the first pressure roller 6 is mounted on the frame 1 in a reciprocating sliding manner. The first pressure roller 6 and the first pressure roller 3 are fitted with a clearance to form a first filtration gap 9 for compressing the double-layer filter cloth 10. The double-layer filter cloth 10, carrying sludge, passes through the first filtration gap 9. The first pressure regulating mechanism 5 is used to provide pressure to the first pressure roller 6 and to adjust the first filtration gap 9 according to the thickness of the double-layer filter cloth 10. Before operating the belt filter press, the first pressure regulating mechanism 5 is manually adjusted to ensure that double-layer filter cloths 10 of different thicknesses can pass through the first filtration gap 9, preventing the first pressure roller 6 and the first pressure roller 3 from meshing too tightly and preventing the double-layer filter cloth 10 from passing through. Simultaneously, by setting a specific pressure through the first pressure regulating mechanism 5, the first pressure roller 6 is pressurized. Under the specific pressure applied by the first pressure roller 6, the double-layer filter cloth 10 passes through the first filtration gap 9, ensuring that more water is filtered out of the sludge.
[0028] In other embodiments of this utility model, such as Figures 1 to 2 As shown, the first filter press assembly 4 also includes a second pressure roller 7 and a second pressure regulating mechanism 8. The second pressure roller 7 is slidably mounted on the frame 1, and there is a clearance fit between the second pressure roller 7 and the first pressure roller 3 to form a second filter press gap 11 for compressing the double-layer filter cloth 10. The double-layer filter cloth 10, carrying sludge, passes through the second filter press gap 11. The second pressure regulating mechanism 8 is used to adjust the size of the second filter press gap 11 according to the thickness of the double-layer filter cloth 10.
[0029] Specifically, the integral formed by the second pressure roller 7 and the second pressure regulating mechanism 8 is perpendicular to the integral formed by the first pressure roller 6 and the first pressure regulating mechanism 5.
[0030] In other embodiments of this utility model, such as Figure 1 As shown, the belt filter press press also includes a second filter press assembly 2. The second filter press assembly 2 includes a third pressure roller, a second pressure roller, and a third pressure regulating mechanism. The second pressure roller is fixedly mounted on the frame 1, and the third pressure roller is slidably mounted on the frame 1. The third pressure roller and the second pressure roller are fitted with a clearance to form a third filter press gap for compressing the double-layer filter cloth 10. The double-layer filter cloth 10, carrying sludge, passes through the third filter press gap. The third pressure regulating mechanism is used to adjust the size of the third filter press gap according to the thickness of the double-layer filter cloth 10. The third pressure regulating mechanism provides pressure to the third pressure roller and adjusts the third filter press gap according to the thickness of the double-layer filter cloth 10. Before operating the belt filter press, the third pressure regulating mechanism is manually adjusted to ensure that double-layer filter cloth 10 of different thicknesses can pass through the third filter press gap, preventing the third pressure roller and the second pressure roller from meshing too tightly and preventing the double-layer filter cloth 10 from passing through. At the same time, a specific pressure is set by the third pressure regulating mechanism to pressurize the third pressure roller. Under the specific pressure applied by the third pressure roller, the double-layer filter cloth 10 passes through the third pressure filter gap, which can ensure that more water is filtered out of the sludge.
[0031] Specifically, the first filter gap 9, the first filter gap 11, and the third filter gap are not on a straight line.
[0032] In some embodiments of this utility model, such as Figures 1 to 2 As shown, the first pressure regulating mechanism 5 includes a hydraulic component; the hydraulic component is used to buffer the first pressure roller 6 when the first pressure roller 6 receives positive pressure, and is also used to adjust the size of the first filter gap 9.
[0033] The hydraulic assembly includes a cylinder 502, a slider 501, and a guide rail 503. The guide rail 503 is fixedly mounted on the frame 1, and the slider 501 slides reciprocally up and down within the guide rail 503. A through hole is formed at one end of the slider 501, through which one end of the first pressure roller 6 shaft passes and is fixedly mounted using countersunk screws. The slider 501 drives the first pressure roller 6 to slide reciprocally up and down together. The bottom end of the cylinder 502 is fixedly mounted on the frame 1, and the other end is connected to the slider 501. The cylinder 502 is set with a specific pressure to automatically adjust the size of the first filter gap 9 according to the thickness of the double-layer filter cloth 10 under specific pressure conditions.
[0034] In other embodiments of this utility model, such as Figure 2 As shown, the hydraulic assembly includes a cylinder 502, a slider 501, a guide rail 503, and a connector 504. The guide rail 503 is fixedly mounted on the frame 1, and the slider 501 is reciprocally slidably mounted within the guide rail 503. A through hole is formed at one end of the slider 501, through which one end of the first pressure roller 6 shaft passes and is fixedly mounted by a countersunk screw. The slider 501 drives the first pressure roller 6 to reciprocate. The bottom end of the connector 504 is fixedly mounted on the frame 1, and the top end of the connector 504 is hinged to the bottom end of the cylinder 502. The top end of the cylinder 502 is connected to the slider 501. The cylinder 502 is set with a specific pressure, used to automatically adjust the size of the first filter gap 9 according to the thickness of the double-layer filter cloth 10 under specific pressure conditions.
[0035] Specifically, cylinder 502 is detachable for easy replacement and maintenance.
[0036] Specifically, the connector 504 is telescopic, and the minimum limit of the first filter press gap can be adjusted by adjusting the length of the connector 504.
[0037] In other embodiments of this utility model, such as Figure 2 As shown, the hydraulic assembly also includes a gap adjustment section, which is used to adjust the sliding position of the first pressure roller 6. The gap adjustment section is used to adjust the minimum limit of the first filter gap 9 to prevent the first pressure roller 6 from meshing too tightly with the first pressure roller 3, which would prevent the double-layer filter cloth 10 from passing through the first filter gap 9.
[0038] In some embodiments of this utility model, such as Figure 1 As shown, the cross-sections of the first pressure roller 6 and the first pressure roller 3 are gear-shaped. The convex and concave surfaces of the first pressure roller 6 and the first pressure roller 3 mesh with each other, ensuring that the first pressure roller 6 and the first pressure roller 3 can stably transmit pressure during rotation and apply uniform and controllable extrusion force to the double-layer filter cloth 10. The concave and convex surfaces of the first pressure roller 6 and the first pressure roller 3 have an arc-shaped structure, which allows the double-layer filter cloth 10 to flow more smoothly when passing through the first pressure gap 9.
[0039] In some embodiments of this utility model, such as Figure 3 As shown, the surfaces of the first pressure roller 6 and the first pressure roller 3 are provided with multiple micro protrusions 12. The multiple micro protrusions 12 can cause the sludge to be subjected to "S"-shaped pressure on the transverse surface of the double-layer filter cloth 10 when passing through the first filter press gap 9, thereby destroying the overall structure of the sludge cake, reducing the pressure-bearing capacity of the sludge cake, and thus pressing out more water from the sludge cake.
[0040] Working Principle: Before operating the high-pressure belt filter press, technicians manually adjust the first, second, and third pressure regulating mechanisms to ensure that the size of the first, second, and third filter gaps meets the requirements for the passage of the double-layer filter cloth 10. Simultaneously, a specific pressure is set for the cylinders 502 within the first, second, and third pressure regulating mechanisms, and this set pressure is transmitted to the first, second, and third pressure rollers. Then, the belt filter press is operated, and the double-layer filter cloth 10, carrying sludge, passes sequentially through the first filter gap 9, the second filter gap 11, and the third filter gap. At the same time, the first, second, and third pressure regulating mechanisms automatically adjust the size of the first, second, and third filter gaps according to the set pressure and the thickness of the double-layer filter cloth 10.
[0041] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Thus, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.
Claims
1. A pressurizing device for a belt filter press, characterized in that, Includes a frame, double-layer filter cloth, and a first filter press assembly; The first pressure filter assembly includes a first pressure roller, a first pressure receiving roller, and a first pressure adjusting mechanism; the first pressure receiving roller is mounted on the frame; the first pressure roller is reciprocally slidably mounted on the frame; the first pressure roller and the first pressure receiving roller are clearance-fitted to form a first pressure filter gap for compressing the double-layer filter cloth; the first pressure adjusting mechanism is used to provide pressure to the first pressure roller and adjust the first pressure filter gap according to the thickness of the double-layer filter cloth.
2. The pressurizing device for a belt filter press according to claim 1, characterized in that, The first pressure filter assembly further includes a second pressure roller and a second pressure regulating mechanism; the second pressure roller is reciprocally slidably mounted on the frame; the second pressure roller and the first pressure roller are in clearance fit to form a second pressure filter gap for squeezing the double-layer filter cloth; the second pressure regulating mechanism is used to provide pressure to the second pressure roller and adjust the second pressure filter gap according to the thickness of the double-layer filter cloth.
3. The pressurizing device for a belt filter press according to claim 2, characterized in that, It also includes a second filter press assembly; the second filter press assembly includes a third pressure roller, a second pressure roller and a third pressure regulating mechanism.
4. The pressurizing device for a belt filter press according to claim 1, characterized in that, The first pressure regulating mechanism includes a hydraulic component; the hydraulic component is used to provide pressure to the first pressure roller, and automatically adjusts the size of the first pressure filter gap when the first pressure roller is subjected to a reaction force, so that the double-layer filter cloth passes through the first pressure filter gap.
5. The pressurizing device for a belt filter press according to claim 4, characterized in that, The hydraulic assembly includes a cylinder, a slider, and a guide rail; the guide rail is fixedly mounted on the frame; the slider is slidably mounted on the guide rail and connected to one end of the first pressure roller; one end of the cylinder is mounted on the frame, and the other end is connected to the slider.
6. The pressurizing device for a belt filter press according to claim 5, characterized in that, The hydraulic assembly further includes a gap adjustment section; the gap adjustment section is used to adjust the sliding position of the first pressure roller.
7. The pressurizing device for a belt filter press according to claim 1, characterized in that, The first pressure roller and the first pressure roller have gear-shaped cross sections; the first pressure roller and the first pressure roller mesh with each other; the concave and convex surfaces of the first pressure roller and the first pressure roller have arc-shaped structures.
8. The pressurizing device for a belt filter press according to claim 7, characterized in that, The surfaces of the first pressure roller and the first pressure roller are provided with multiple micro protrusions.