In-situ automatic cleaning device for filter cloth of filter press

Abstract

The utility model discloses an in-situ automatic filter cloth cleaning device of a filter press, which comprises a cleaning box and is characterized in that the cleaning box is arranged between a filter cloth unloading device and a filter cloth rolling device, a plurality of groups of tension rollers are arranged in the cleaning box, and the filter cloth is arranged in a V shape in the cleaning box under the action of the tension rollers. A cleaning cavity and a draining cavity are formed in the cleaning box, and the filter cloth is symmetrically arranged in the cleaning cavity and the draining cavity. The filter cloth cleaning device has the advantages that the cleaning box is arranged between the filter cloth discharging device and the filter cloth winding device, in-situ cleaning of the filter cloth can be achieved, the filter cloth is cleaned after being discharged and before being wound, a new cleaning procedure does not need to be added, cost is saved, the production efficiency of equipment is effectively improved, and the production cost is reduced. The filter cloth is arranged in a V shape in the cleaning box, so that sludge on the filter cloth can flow towards the V-shaped bottom of the filter cloth under the cooperation of the cleaning brush and the first high-pressure spray head, and the cleaning effect on the sludge on the filter cloth is improved.

Description

Technical Field

[0001] This utility model relates to the field of filter cloth cleaning technology for filter presses, and in particular to an in-situ automatic cleaning device for filter cloths in filter presses. 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] The filter cloth in a vertical sludge deep filter press dewatering equipment must not only have a filtration function, but also be able to withstand a certain amount of compressive force. Usually, the filter cloth has relatively thick threads and a certain amount of porosity. During the sludge pressing process, sludge is easily blocked in the porosity, causing blockage of the water channels and affecting the water filtration effect of the filter cloth. Therefore, the filter cloth needs to be cleaned. In order to ensure that the sludge does not pollute the external environment during cleaning, some existing filter presses use separate cleaning devices to clean the filter cloth. This not only adds new equipment processes and increases costs, but also consumes a lot of water, which is wasteful of water resources. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing filter press filter cloths, which often use separate cleaning devices to ensure that the sludge does not pollute the external environment during cleaning. This not only adds new equipment processes and increases costs, but also consumes a lot of water and wastes water resources. The invention provides an in-situ automatic cleaning device for filter press filter cloths.

[0005] The purpose of this utility model is achieved through the following technical solution: an in-situ automatic cleaning device for filter cloth of a filter press, comprising a cleaning box, characterized in that: the cleaning box is installed between the filter cloth unloading device and the filter cloth winding device, multiple sets of tension rollers are installed in the cleaning box, the filter cloth is arranged in a V-shape in the cleaning box under the action of the tension rollers, the cleaning box is provided with a cleaning chamber and a draining chamber, the filter cloth is arranged symmetrically in the cleaning chamber and the draining chamber, the cleaning box is set between the filter cloth unloading device and the filter cloth winding device to realize in-situ cleaning of the filter cloth, cleaning is performed after the filter cloth is unloaded and before it is wound up, no additional cleaning process is required, saving costs and effectively improving the production efficiency of the equipment;

[0006] The cleaning chamber is equipped with multiple sets of cleaning brushes that come into contact with the filter cloth. The cleaning brushes are connected to an external power unit. The cleaning chamber is also equipped with multiple sets of first high-pressure nozzles corresponding to the cleaning brushes. The water inlet of the first high-pressure nozzles is connected to a water storage tank through a water supply pipe. By setting the filter cloth in a V-shape in the cleaning chamber, the sludge on the filter cloth can flow towards the bottom of the V-shape of the filter cloth with the cooperation of the cleaning brushes and the first high-pressure nozzles, thereby improving the cleaning effect on the sludge on the filter cloth.

[0007] The outlet of the cleaning tank is connected to a continuous flow sand filter, which is connected to a water storage tank. By connecting the outlet of the cleaning tank to a continuous flow sand filter, the cleaning water in the cleaning tank can be filtered and separated, effectively recycling water resources and avoiding waste.

[0008] A further technical solution involves installing multiple sets of second high-pressure nozzles within the draining chamber. These second high-pressure nozzles are positioned at the feed end of the lower part of the draining chamber, with each set positioned on both sides of the filter cloth. The water outlets of these second high-pressure nozzles on both sides of the filter cloth are directed towards the sides of the filter cloth. By using the second high-pressure nozzles positioned at the lower part of the draining chamber, the sludge washed away in the cleaning chamber can be flushed off the filter cloth, thus keeping the filter cloth clean within the draining chamber. Furthermore, the upward movement of the filter cloth within the draining chamber provides a certain degree of drainage, which is beneficial for water recycling. Simultaneously, the fact that the water outlets of the second high-pressure nozzles on both sides of the filter cloth are directed towards the sides of the filter cloth allows for the flushing of sludge from both sides of the filter cloth, improving the efficiency of the second high-pressure nozzles in flushing off the sludge from the filter cloth and further enhancing the cleaning effect on the filter cloth.

[0009] A further technical solution is to install a rotatable roller shaft inside the drainage chamber. The roller shaft is connected to an external power unit, and a protrusion is installed on the roller shaft at the contact point with the filter cloth. By driving the roller shaft and the protrusion to rotate through the external power unit, the protrusion can periodically contact the filter cloth, causing the filter cloth to vibrate, thereby improving the drainage effect of the filter cloth.

[0010] A further technical solution is to install a baffle between the cleaning chamber and the draining chamber. By installing the baffle to isolate the cleaning chamber and the draining chamber, it is possible to prevent the sludge in the cleaning chamber from splashing onto the filter cloth in the draining chamber.

[0011] A further technical solution is to set multiple cleaning brushes on the upper and lower sides of the filter cloth, with the water outlet of the first high-pressure nozzle facing the contact position between the cleaning brush and the filter cloth. By setting the cleaning brushes on the upper and lower sides of the filter cloth and the water outlet of the first high-pressure nozzle facing the contact position between the cleaning brush and the filter cloth, the cleaning effect of the cleaning brush and the first high-pressure nozzle on both sides of the filter cloth can be improved.

[0012] A further technical solution is to connect the sludge outlet of the continuous flow sand filter to an external sludge recovery device. By connecting the sludge outlet of the continuous flow sand filter to the external sludge recovery device, it is convenient to directly recover the filtered and separated sludge, thus avoiding waste of sludge.

[0013] This invention has the following advantages: The cleaning tank, positioned between the filter cloth unloading device and the filter cloth winding device, enables in-situ cleaning of the filter cloth. Cleaning is performed after unloading and before winding, eliminating the need for additional cleaning steps, saving costs, and effectively improving equipment production efficiency. By arranging the filter cloth in a V-shape within the cleaning tank, sludge on the filter cloth flows towards the bottom of the V-shape under the combined action of the cleaning brush and the first high-pressure nozzle, thereby improving the cleaning effect. Furthermore, the continuous flow sand filter connected to the outlet of the cleaning tank allows for the filtration and separation of the clean water, effectively recovering water resources and preventing waste. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the cleaning box in this utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 3 This is a schematic diagram showing the installation state of the second high-pressure nozzle in this utility model;

[0017] In the diagram, 1. Cleaning box; 2. Filter cloth; 3. Cleaning chamber; 4. Draining chamber; 5. Tensioning roller; 6. Cleaning brush; 7. First high-pressure nozzle; 8. Second high-pressure nozzle; 9. Baffle; 10. Roller shaft; 11. Protrusion; 12. Water supply pipe; 13. Water storage tank; 14. Continuous flow sand filter. Detailed Implementation

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] like Figures 1-3As shown, an in-situ automatic cleaning device for filter cloth in a filter press includes a cleaning box 1, which is installed between the unloading device and the winding device of the filter cloth 2. Multiple sets of tension rollers 5 are installed inside the cleaning box 1. Under the action of the tension rollers 5, the filter cloth 2 is arranged in a V-shape inside the cleaning box 1. The cleaning box 1 is provided with a cleaning chamber 3 and a draining chamber 4. The filter cloth 2 is symmetrically arranged in the cleaning chamber 3 and the draining chamber 4. Positioning the cleaning box 1 between the unloading device and the winding device of the filter cloth 2 enables in-situ cleaning of the filter cloth 2. Cleaning is performed after the filter cloth 2 is unloaded and before winding, eliminating the need for additional cleaning processes, saving costs, and effectively improving the production efficiency of the equipment.

[0025] Multiple sets of cleaning brushes 6 that come into contact with the filter cloth 2 are installed in the cleaning chamber 3. The cleaning brushes 6 are connected to an external power unit. Multiple sets of first high-pressure nozzles 7 corresponding to the cleaning brushes 6 are installed in the cleaning chamber 3. The water inlet of the first high-pressure nozzle 7 is connected to a water storage tank 13 through a water supply pipe 12. By setting the filter cloth 2 in a V-shape in the cleaning chamber 1, the sludge on the filter cloth 2 can flow towards the bottom of the V-shape of the filter cloth 2 with the cooperation of the cleaning brushes 6 and the first high-pressure nozzles 7, thereby improving the cleaning effect on the sludge on the filter cloth 2.

[0026] The outlet of the cleaning tank 1 is connected to a continuous flow sand filter 14, and the outlet of the continuous flow sand filter 14 is connected to the water storage tank 13. By setting the outlet of the cleaning tank 1 to be connected to the continuous flow sand filter 14, the cleaning water of the cleaning tank 1 can be filtered and separated, effectively recovering water resources and avoiding waste of water resources.

[0027] Multiple sets of second high-pressure nozzles 8 are installed inside the draining chamber 4. The second high-pressure nozzles 8 are located at the feed end of the lower part of the draining chamber 4, and the multiple sets of second high-pressure nozzles 8 are respectively located on both sides of the filter cloth 2. The water outlets of the second high-pressure nozzles 8 on both sides of the filter cloth 2 are all set towards the side of the filter cloth 2. The second high-pressure nozzles 8 located at the lower part of the draining chamber 4 can wash the sludge washed in the cleaning chamber 3 off the filter cloth 2, thereby keeping the filter cloth 2 in the draining chamber 4 clean. The upward movement of the filter cloth 2 in the draining chamber 4 has a certain draining effect, which is conducive to water recycling. At the same time, the water outlets of the second high-pressure nozzles 8 on both sides of the filter cloth 2 are all set towards the side of the filter cloth 2, which can wash the sludge off the sides of the filter cloth 2, improve the efficiency of the second high-pressure nozzles 8 in washing off the sludge on the filter cloth 2, and further improve the cleaning effect of the filter cloth 2.

[0028] A rotatable roller 10 is installed inside the draining chamber 4. The roller 10 is connected to an external power device. A protrusion 11 is installed on the roller 10 at the point where it contacts the filter cloth 2. The external power device drives the roller 10 and the protrusion 11 to rotate, so that the protrusion 11 periodically contacts the filter cloth 2, causing the filter cloth 2 to vibrate, thereby improving the draining effect of the filter cloth 2.

[0029] A baffle 9 is provided between the cleaning chamber 3 and the draining chamber 4. By setting the baffle 9 to isolate the cleaning chamber 3 and the draining chamber 4, the sludge in the cleaning chamber 3 can be prevented from splashing onto the filter cloth 2 in the draining chamber 4.

[0030] Multiple sets of cleaning brushes 6 are respectively arranged on the upper and lower sides of the filter cloth 2, and the water outlet of the first high-pressure nozzle 7 faces the contact position between the cleaning brush 6 and the filter cloth 2. By setting the cleaning brushes 6 on the upper and lower sides of the filter cloth 2 respectively, and the water outlet of the first high-pressure nozzle 7 facing the contact position between the cleaning brush 6 and the filter cloth 2, the cleaning effect of the cleaning brushes 6 and the first high-pressure nozzle 7 on both sides of the filter cloth 2 can be improved.

[0031] The sludge outlet of the continuous flow sand filter 14 is connected to an external sludge recovery device. By connecting the sludge outlet of the continuous flow sand filter 14 to an external sludge recovery device, it is convenient to directly recover the filtered and separated sludge, thus avoiding waste of sludge.

[0032] The working process of this utility model is as follows: The cleaning box 1 is installed between the unloading device of the filter cloth 2 and the winding device of the filter cloth 2. After the filter cloth 2 is unloaded, it enters the cleaning box 1 under the action of the winding device. The cleaning brush 6 and the first high-pressure nozzle 7 in the cleaning chamber 3 work together to wash the sludge on the filter cloth 2. Some of the sludge falls directly into the discharge end of the cleaning box 1 with the water. Some of the sludge flows along the filter cloth 2 with the water and reaches the lowest point of the filter cloth 2 when the filter cloth 2 enters the draining chamber 4. At the same time, the second high-pressure nozzle 8 in the draining chamber 4 washes the sludge and water flowing along the filter cloth 2 down to the discharge end of the cleaning box 1. Then, the filter cloth 2 moving in the draining chamber 4 is further drained by the roller 10 and the protrusion 11. After the filter cloth 2 is removed from the draining chamber 4, it is wound up on the winding device. The sludge and water enter the continuous flow sand filter 14 through the discharge end of the cleaning box 1 for mud-water separation. The separated water and sludge are recycled separately.

[0033] 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 press cloth in-situ automatic cleaning device, comprising a cleaning tank (1), characterized in that: The cleaning tank (1) is installed between the discharging device of filter cloth (2) and the winding device of filter cloth (2), a plurality of tensioning rollers (5) are installed in the cleaning tank (1), the filter cloth (2) is arranged in V shape in the cleaning tank (1) under the action of the tensioning rollers (5), a cleaning cavity (3) and a draining cavity (4) are arranged in the cleaning tank (1), and the filter cloth (2) is symmetrically arranged in the cleaning cavity (3) and the draining cavity (4); A plurality of cleaning brushes (6) in contact with the filter cloth (2) are installed in the cleaning cavity (3), the cleaning brushes (6) are connected with external power devices, a plurality of first high-pressure nozzles (7) corresponding to the cleaning brushes (6) are installed in the cleaning cavity (3), and the water inlet end of the first high-pressure nozzle (7) is connected with a water storage tank (13) through a water supply pipe (12). The water outlet end of the cleaning tank (1) is connected with a continuous flow sand filter (14), and the water outlet end of the continuous flow sand filter (14) is connected with the water storage tank (13).

2. The filter press cloth in-situ automatic cleaning device according to claim 1, characterized in that: A plurality of second high-pressure nozzles (8) are installed in the draining cavity (4), the second high-pressure nozzles (8) are arranged at the water inlet end of the lower part of the draining cavity (4), a plurality of the second high-pressure nozzles (8) are arranged on the two sides of the filter cloth (2) respectively, and the water outlet ends of the second high-pressure nozzles (8) on the two sides of the filter cloth (2) are arranged towards the side of the filter cloth (2).

3. The filter press cloth in-situ automatic cleaning device according to claim 1, characterized in that: A rotatable roller shaft (10) is installed in the draining cavity (4), the roller shaft (10) is connected with external power devices, and a protruding part (11) in contact with the filter cloth (2) is installed on the roller shaft (10).

4. The filter press cloth in-situ automatic cleaning device according to claim 1, characterized in that: A baffle (9) is arranged between the cleaning cavity (3) and the draining cavity (4).

5. The filter press cloth in-situ automatic cleaning device according to claim 1, characterized in that: A plurality of the cleaning brushes (6) are arranged on the upper and lower sides of the filter cloth (2) respectively, and the water outlet ends of the first high-pressure nozzles (7) are directed towards the contact positions of the cleaning brushes (6) and the filter cloth (2).

6. The filter press cloth in-situ automatic cleaning device according to claim 1, characterized in that: The mud outlet end of the continuous flow sand filter (14) is connected with external sludge recycling equipment.

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