Filter cloth anti-adhesion device for discharging of sludge filter press

Abstract

The utility model discloses a filter cloth anti-adhesion device for unloading of a sludge filter press, which comprises filter cloth and two groups of tensioning rollers, the two groups of tensioning rollers are vertically distributed, one end of the filter cloth is connected with a wind-up roller through the two groups of tensioning rollers, a beating roller is arranged between the two groups of tensioning rollers, a plurality of groups of sleeves arranged in a circumferential array are mounted on the beating roller, and the two groups of sleeves are connected with the other end of the filter cloth. A telescopic striking rod is installed on the sleeve, a compression spring corresponding to the striking rod is installed in the sleeve, an arc-shaped compression force storage plate is arranged between the two sets of tensioning rollers, and the compression force storage plate is used for compressing the sleeve. The utility model has the beneficial effects that the impact rod can be compressed into the sleeve by arranging the compression force storage plate, the impact rod extrudes the compression spring under the compression action of the compression force storage plate, and when the impact rod slides out of the compression force storage plate, the compression spring exerts certain thrust on the impact rod to enable the impact rod to impact the back surface of the filter cloth, so that the back surface of the filter cloth is not damaged. The filter cake is separated from the filter cloth, so that the filter cake is prevented from being adhered to the filter cloth, and the discharging effect of the filter cloth is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of filter press unloading technology, and in particular to a filter cloth anti-sticking device for unloading sludge filter press. Background Technology

[0002] Vertical sludge deep pressure filter dewatering equipment is a type of mechanical dewatering equipment that has gradually emerged in recent years. Compared with common sludge dewatering machines, it has the advantages of simple system, larger single processing capacity, lower operating cost, and high-pressure mechanical vertical extrusion of sludge. Under the conditions of proper selection and dosage of equipment reagents and precise control, the moisture content of the influent sludge is about 80%, and the average moisture content of the outfluent sludge can reach 50%-55%. After the sludge is pressed out of the press cage, it will be discharged through the unloading mechanism to separate the sludge material from the filter cloth, and at the same time, the filter cloth will be rolled up and recycled.

[0003] After sludge is dewatered by a filter press, it forms a filter cake. Some existing unloading devices only use scrapers to unload the filter cake. If the scraper comes into contact with the filter cloth, it can ensure the unloading effect of the filter cloth, but the scraper will damage the filter cloth and affect its service life. If the scraper and the filter cloth maintain a certain gap, a small amount of sludge will stick to the filter cloth, affecting the unloading effect of the filter cloth. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of some unloading devices that only use scrapers to unload filter cake. Although the unloading effect of the filter cloth can be guaranteed if the scraper comes into contact with the filter cloth, the scraper will cause some damage to the filter cloth and affect its service life. If a certain gap is maintained between the scraper and the filter cloth, a small amount of sludge will stick to the filter cloth, affecting the unloading effect of the filter cloth. This utility model provides a filter cloth anti-sticking device for unloading sludge filter press.

[0005] The purpose of this utility model is achieved through the following technical solution: a filter cloth anti-sticking device for unloading sludge filter press, comprising filter cloth and two sets of tension rollers, the two sets of tension rollers being vertically distributed, one end of the filter cloth being connected to the winding roller through the two sets of tension rollers, an impact roller being provided between the two sets of tension rollers, multiple sets of sleeves arranged in a circumferential array being installed on the impact roller, a retractable impact rod being installed on the sleeve, and a compression spring corresponding to the impact rod being installed inside the sleeve;

[0006] An arc-shaped compression accumulator plate is set between the two sets of tensioning rollers. The compression accumulator plate is used to compress the sleeve. By setting the compression accumulator plate, the striking rod can be compressed into the sleeve. Under the compression action of the compression accumulator plate, the striking rod squeezes the compression spring. When the striking rod slides out of the compression accumulator plate, the compression spring gives the striking rod a certain thrust so that the striking rod strikes the back of the filter cloth 1, so that the filter cake separates from the filter cloth, preventing the filter cake from sticking to the filter cloth, and effectively improving the unloading effect of the filter cloth.

[0007] A further technical solution is that the bottom surface of the striking rod extends into the sleeve and is fitted with a limiting plate. The side of the limiting plate is slidably connected to the inner wall of the sleeve, and the bottom surface of the limiting plate is connected to a compression spring. By setting the limiting plate to slide in the inner wall of the sleeve, the stability of the striking rod during extension and retraction can be ensured, and the smooth operation of the sleeve and the striking rod can be guaranteed.

[0008] A further technical solution is that the top of the striking rod is rounded and has a smooth coating. The rounded top and smooth coating of the striking rod can effectively reduce the friction of the striking rod when striking the filter cloth, thereby reducing damage to the filter cloth and ensuring its service life.

[0009] A further technical solution is to install detachable retaining rings on the impact roller. The impact roller has multiple sets of threaded holes, and the retaining rings are installed on the impact roller by bolts that are threaded to the threaded holes. The retaining rings can be removed and the number of retaining rings on the impact roller can be adjusted, thereby adjusting the impact force of the impact roller on the filter cloth to meet different usage requirements of the equipment.

[0010] A further technical solution is to install a collection box below the filter cloth, with the collection box being open.

[0011] A further technical solution is to install a scraper at the bottom of the filter cloth, with the scraper located between the collection box and the filter cloth. There is a gap of 1 to 3 mm between the scraper and the filter cloth. The gap between the scraper and the filter cloth allows the filter cake that has separated from the filter cloth to fall into the collection box, while avoiding contact with the filter cloth to prevent damage and ensure the service life of the filter cloth.

[0012] This invention has the following advantages: By setting a compression accumulator plate, the impact rod can be compressed into the sleeve. Under the compression action of the compression accumulator plate, the impact rod squeezes the compression spring. When the impact rod slides out of the compression accumulator plate, the compression spring gives the impact rod a certain thrust, causing the impact rod to strike the back of the filter cloth, separating the filter cake from the filter cloth and preventing the filter cake from sticking to the filter cloth. This effectively improves the unloading effect of the filter cloth. The rounded top of the impact rod and the smooth coating can effectively reduce the friction of the impact rod when striking the filter cloth, thereby reducing damage to the filter cloth and ensuring the service life of the filter cloth. Attached Figure Description

[0013] Figure 1 This is a schematic cross-sectional view of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the striking roller of this utility model;

[0015] Figure 3This is a three-dimensional structural diagram of the striking roller in this utility model;

[0016] In the diagram, 1. Filter cloth; 2. Tensioning roller; 3. Impact roller; 4. Sleeve; 5. Impact rod; 6. Compression accumulator plate; 7. Rewinding roller; 8. Collection box; 9. Compression spring; 10. Scraper; 11. Limiting plate; 12. Smooth coating; 13. Fixing ring; 14. Threaded hole; 15. Bolt. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used 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. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figures 1-3 As shown, a filter cloth anti-sticking device for unloading sludge filter press includes a filter cloth 1 and two sets of tension rollers 2. The two sets of tension rollers 2 are vertically distributed. One end of the filter cloth 1 is connected to the winding roller 7 through the two sets of tension rollers 2. An impact roller 3 is arranged between the two sets of tension rollers 2. Multiple sets of sleeves 4 arranged in a circumferential array are installed on the impact roller 3. Retractable impact rods 5 are installed on the sleeves 4. Compression springs 9 corresponding to the impact rods 5 are installed inside the sleeves 4. The tension rollers 2, impact rollers 3 and winding rollers 7 are all connected to external power equipment.

[0024] An arc-shaped compression accumulator plate 6 is set between the two sets of tensioning rollers 2. The compression accumulator plate 6 is used to compress the sleeve 4. By setting the compression accumulator plate 6, the striking rod 5 can be compressed into the sleeve 4. Under the compression action of the compression accumulator plate 6, the striking rod 5 squeezes the compression spring 9. When the striking rod 5 slides out from the compression accumulator plate 6, the compression spring 9 gives the striking rod 5 a certain pushing force so that the striking rod 5 strikes the back of the filter cloth 1, so that the filter cake is separated from the filter cloth 1, preventing the filter cake from sticking to the filter cloth, and effectively improving the unloading effect of the filter cloth.

[0025] The bottom surface of the striking rod 5 extends into the sleeve 4 and is fitted with a limiting plate 11. The side of the limiting plate 11 is slidably connected to the inner wall of the sleeve 4, and the bottom surface of the limiting plate 11 is connected to the compression spring 9. By setting the limiting plate 11 to slide in the inner wall of the sleeve 4, the stability of the striking rod 5 during extension and retraction can be ensured, and the smooth operation of the sleeve 4 and the striking rod 5 can be guaranteed.

[0026] A further technical solution is that the top of the striking rod 5 is rounded and a smooth coating 12 is provided on the top of the striking rod 5. The rounded top of the striking rod 5 and the smooth coating 12 can effectively reduce the friction of the striking rod 5 when striking the filter cloth 1, thereby reducing the damage to the filter cloth 1 and ensuring the service life of the filter cloth 1.

[0027] The impact roller 3 is equipped with a detachable retaining ring 13. The impact roller 3 has multiple sets of threaded holes 14. The retaining ring 13 is installed on the impact roller 3 by bolts 15 that are threaded to the threaded holes 14. The retaining ring 13 can be removed and the number of retaining rings 13 on the impact roller 3 can be adjusted, thereby adjusting the impact force of the impact roller 3 on the filter cloth 1 to meet different usage requirements of the equipment.

[0028] A collection box 8 is provided below the filter cloth 1, and the collection box 8 is open.

[0029] A scraper 10 is provided at the bottom of the filter cloth 1. The scraper 10 is located between the collection box 8 and the filter cloth 1. There is a gap of 1 to 3 mm between the scraper 10 and the filter cloth 1. The gap between the scraper 10 and the filter cloth 1 allows the filter cake that has separated from the filter cloth 1 to fall into the collection box 8, while avoiding contact with the filter cloth 1 to prevent damage to the filter cloth 1 and ensure the service life of the filter cloth 1.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A filter cloth anti-sticking device for unloading sludge filter press, comprising filter cloth (1) and two sets of tension rollers (2), characterized in that: The two sets of tension rollers (2) are arranged vertically. One end of the filter cloth (1) is connected to the winding roller (7) through the two sets of tension rollers (2). A striking roller (3) is arranged between the two sets of tension rollers (2). Multiple sets of sleeves (4) arranged in a circular array are installed on the striking roller (3). A telescopic striking rod (5) is installed on the sleeve (4). A compression spring (9) corresponding to the striking rod (5) is installed inside the sleeve (4). An arc-shaped compression accumulator plate (6) is provided between the two sets of tensioning rollers (2), and the compression accumulator plate (6) is used to compress the sleeve (4).

2. The filter cloth anti-sticking device for unloading a sludge filter press according to claim 1, characterized in that: The bottom surface of the striking rod (5) extends into the sleeve (4) and is fitted with a limiting plate (11). The side of the limiting plate (11) is slidably connected to the inner wall of the sleeve (4), and the bottom surface of the limiting plate (11) is connected to the compression spring (9).

3. The filter cloth anti-sticking device for unloading a sludge filter press according to claim 1, characterized in that: The top of the striking rod (5) is arc-shaped, and the top of the striking rod (5) is provided with a smooth coating (12).

4. The filter cloth anti-sticking device for unloading a sludge filter press according to claim 1, characterized in that: A detachable retaining ring (13) is installed on the striking roller (3). The striking roller (3) has multiple sets of threaded holes (14). The retaining ring (13) is installed on the striking roller (3) by bolts (15) that are threaded to the threaded holes (14).

5. The filter cloth anti-sticking device for unloading a sludge filter press according to claim 1, characterized in that: A collection box (8) is provided below the filter cloth (1), and the collection box (8) is open.

6. The filter cloth anti-sticking device for unloading a sludge filter press according to claim 5, characterized in that: The bottom of the filter cloth (1) is provided with a scraper (10), which is located between the collection box (8) and the filter cloth (1), and there is a gap of 1 to 3 mm between the scraper (10) and the filter cloth (1).

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