An automatic cleaning device for filter cloth

Abstract

The utility model relates to the field of cleaning device discloses an automatic cleaning device for filter cloth, including cleaning subassembly, drive assembly and cloth winding subassembly, the cleaning subassembly includes several spiral mud scraping rollers and several flush tubes, the spiral mud scraping roller is along the width direction of filter cloth and sets up, be provided with several nozzles on the flush tube, several the filter cloth of the filter cloth of the spiral mud scraping roller contact place is all oriented to the nozzle, drive assembly drives the spiral mud scraping roller rotates, cloth winding subassembly drives filter cloth to remove.

Description

Technical Field

[0001] This utility model relates to the field of cleaning devices, and specifically to an automatic cleaning device for filter cloth. Background Technology

[0002] In municipal sewage treatment, industrial wastewater treatment, and river dredging, sludge dewatering is a crucial subsequent treatment step. Plate and frame filter presses and diaphragm filter presses are widely used in these fields due to their high dewatering rates and high filter cake solids content. As the core filtration medium of the filter press, the permeability of the filter cloth directly determines the filter press's working efficiency, processing capacity, and final dewatering effect.

[0003] In actual operation, after several or even dozens of filtration cycles, the surface and internal pores of the filter cloth will inevitably be clogged by fine sludge particles, colloidal substances, grease and other contaminants, which will lead to a decrease in the dewatering efficiency of the filter cloth and may also cause an increase in the moisture content of the filter cake, making it impossible to achieve the expected reduction target and increasing subsequent transportation and treatment costs.

[0004] Currently, the common methods for cleaning clogged filter cloths are manual high-pressure water guns and simple fixed spray devices. High-pressure water gun cleaning involves operators manually rinsing each filter cloth side-by-side with a high-pressure water gun after the filter press has finished unloading. This method suffers from drawbacks such as high labor intensity, low cleaning efficiency, inconsistent cleaning results, and a lack of guarantee of uniformity. Simple fixed spray devices spray the filter cloth through spray pipes during or after unloading. These devices typically have cleaning blind spots, and the fixed spray angle and pressure prevent the thorough removal of stubborn contaminants embedded deep within the filter cloth fibers, resulting in limited cleaning effectiveness. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the current method of rinsing filter cloth by high-pressure water gun or simple fixed spray device has limited cleaning effect. The purpose is to provide an automatic cleaning device for filter cloth, which solves the problem that the current cleaning method cannot completely remove stubborn dirt and leaves blind spots, and improves the cleaning effect of filter cloth.

[0006] This utility model is achieved through the following technical solution: An automatic cleaning device for filter cloth includes a cleaning assembly, a driving assembly, and a cloth winding assembly. The cleaning assembly includes several spiral scraper rollers and several flushing pipes. The spiral scraper rollers are used to scrape off contaminants from the filter cloth. The flushing pipes are equipped with several nozzles, which are respectively directed towards the front and back of the contact area between the filter cloth and the spiral scraper rollers. The driving assembly drives the spiral scraper rollers to rotate. The cloth winding assembly moves the filter cloth.

[0007] The beneficial effects of this utility model are that by setting a spiral scraper roller and a flushing pipe along the width direction of the filter cloth, and setting a drive component to drive the spiral scraper roller to rotate, and setting a cloth rolling component to drive the filter cloth to move, the drive component drives the spiral scraper roller to rotate during the cleaning of the filter cloth. The spiral scraper strips on the spiral scraper roller form a continuous and uniform scraping along the width direction of the filter cloth, which can actively peel off the stubborn dirt on the surface and pores of the filter cloth, and transform the hard-to-wash solid adhering into loose particles that are easily carried away by the water flow. Water is sprayed evenly through several nozzles on the flushing pipe to directionally flush the loose dirt peeled off by the spiral scraper roller, preventing the dirt from re-adhering to the filter cloth. In conjunction with the movement of the filter cloth, the surface of the filter cloth can be rinsed point by point, which solves the problem that the current cleaning method does not completely remove stubborn dirt and is prone to leaving blind spots, thus improving the cleaning effect of the filter cloth.

[0008] In some embodiments, a cleaning tank is also included. The spiral scraper roller includes a driving spiral scraper roller and a driven spiral scraper roller, both of which are rotatably connected within the cleaning tank. The cleaning tank supports and positions the driving and driven spiral scraper rollers and collects wastewater generated during the cleaning process.

[0009] In some embodiments, a top cover is also included, which is connected above the cleaning tank via a connecting bracket, and a gap is provided between the top cover and the cleaning tank for the filter cloth to pass through. The top cover prevents water and contaminants on the filter cloth from splashing onto the outside of the cleaning tank during the cleaning process, thus protecting the working environment.

[0010] In some embodiments, the drive assembly includes a first drive motor, an active rotating shaft mounted on the axis of the active spiral scraper roller, and a driven rotating shaft mounted on the axis of the driven spiral scraper roller. The first drive motor is located outside one end of the cleaning tank and is connected to the active rotating shaft via a connector. An active sprocket is connected to the outer end of the active rotating shaft outside the cleaning tank, and a driven sprocket is connected to the outer end of the driven rotating shaft outside the cleaning tank. The active sprocket and the driven sprocket are connected via a chain drive. By setting the first drive motor to drive the active rotating shaft to rotate, the active spiral scraper roller rotates to scrape mud. Then, the chain drives the driven sprocket to rotate, thereby rotating the driven spiral scraper roller. This achieves synchronous rotation of two spiral scraper rollers driven by one drive motor.

[0011] In some embodiments, the system further includes a frame on which the cleaning tank is mounted. The cloth winding assembly includes a second drive motor, a third drive motor, and a reversing roller. The second drive motor is connected to a first cloth winding roller via a coupling, and the third drive motor is connected to a second cloth winding roller via a coupling. Both the first and second cloth winding rollers are rotatably connected to the frame and located above the cleaning tank. The reversing roller is rotatably connected to the bottom of the cleaning tank. In operation, the filter cloth first passes around the first drive roller, then passes around the bottom of the reversing roller to change its direction of movement, and finally winds around the second drive roller. By driving the two cloth-rolling rollers with independent motors, the tension of the filter cloth can be precisely controlled by adjusting the speed difference between the two motors. This allows for flexible adaptation to the optimal tension for filter cloths of different thicknesses and materials (such as nylon and polyester filter cloths). Furthermore, by first winding the filter cloth around the first drive roller, then around the reversing roller at the bottom of the cleaning tank, and finally winding it around the second drive roller, the movement path of the filter cloth in the cleaning tank changes from a unidirectional straight line to a bidirectional folding back. This extends the residence time of the filter cloth in the cleaning area, achieving thorough cleaning of every point on the filter cloth surface.

[0012] In some embodiments, the cloth winding assembly further includes at least two guide rollers, both of which are rotatably mounted on the frame and located above and on either side of the cleaning tank. In operation, the filter cloth passes over the outside of the corresponding guide roller. Positioning the guide rollers above and outside the cleaning tank prevents the filter cloth from sticking to the top of the cleaning tank due to fluctuations in winding tension and prevents it from snagging on components such as motors and couplings on the top of the tank, ensuring a smooth conveying process.

[0013] In some embodiments, the driven spiral scraper roller is located above one side of the reversing roller and on the front side of the filter cloth, while the driving spiral scraper roller is located above the other side of the reversing roller and on the back side of the filter cloth. This allows the filter cloth to face upwards when it passes over one side of the reversing roller during operation, enabling the spiral scraper blades of the driven spiral scraper roller to directly act on the front side, peeling off the dirt adhering to the front. When the filter cloth folds back and passes over the other side of the reversing roller, the back side faces upwards, improving the cleaning effect on the filter cloth.

[0014] In some embodiments, the rinsing pipe includes a first rinsing pipe and a second rinsing pipe, with several nozzles evenly distributed along the length of the first and second rinsing pipes. The first rinsing pipe is located below the back side of the filter cloth, and the second rinsing pipe is located above the front side of the filter cloth. Both the first and second rinsing pipes are connected to an external water pipe. By setting two rinsing pipes, with the second rinsing pipe located above the front side, the water flow is directed from top to bottom to directly flush away loose sludge from the front side, preventing it from re-embedding into the filter cloth pores. With the first rinsing pipe located below the back side, the water flow is directed from bottom to top to flush out residual sludge in the pores on the back side, and the water pressure can also open the gaps between the filter cloth fibers, allowing the hidden fine mud to be completely discharged.

[0015] In some embodiments, brushes are provided on both sides of the bottom of the top cover, the brushes are arranged along the length of the top cover, and the bristles of the brushes face the filter cloth. By setting the brushes to wipe, adsorb or guide residual water droplets in the pores, water droplets are prevented from dripping and contaminating the equipment when entering the next stage (such as filtration or cloth rolling), or from causing secondary adhesion of dirt due to residual moisture.

[0016] In some embodiments, a water receiving tank and a drain pipe are also included. The water receiving tank is installed on one side of the cleaning tank and below the second cloth roll. The water receiving tank is open. Two drain branch pipes are connected to the drain pipe, which are respectively installed at the bottom of the water receiving tank and the cleaning tank. By setting the water receiving tank directly below the second cloth roll, water droplets dripping during filter cloth winding are caught, and wastewater generated by the dual rinsing pipes is promptly discharged through the drain pipes from the bottom branch pipes of the cleaning tank, ensuring that the spiral scraper roller is always in effective contact with the filter cloth.

[0017] Compared with the prior art, this utility model has the following advantages and beneficial effects: 1. The spiral scraper on the spiral scraper roller forms a continuous and uniform scraping along the width of the filter cloth, which can actively peel off stubborn dirt from the surface and pores of the filter cloth, transforming the hard-to-wash solid deposits into loose particles that are easily carried away by the water flow. Water is sprayed evenly through several nozzles on the flushing pipe to directionally flush the loose dirt peeled off by the spiral scraper roller, preventing the dirt from re-adhering to the filter cloth. In conjunction with the movement of the filter cloth, the surface of the filter cloth can be rinsed point by point, solving the problem that current cleaning methods cannot thoroughly remove stubborn dirt and are prone to leaving blind spots, thus improving the cleaning effect on the filter cloth.

[0018] 2. By first wrapping the filter cloth around the first drive roller, then around the reversing roller at the bottom of the cleaning tank, and finally winding it around the second drive roller, the movement path of the filter cloth in the cleaning tank is changed from a one-way straight line to a two-way folding, which prolongs the residence time of the filter cloth in the cleaning area and achieves point-by-point cleaning of the filter cloth surface.

[0019] 3. Position the second flushing pipe above the front, and let the water flow from top to bottom to directly flush away the loose sludge on the front, preventing it from re-embedding into the filter cloth pores. Position the first flushing pipe below the back, and let the water flow from bottom to top to flush in the opposite direction. This will not only push out the residual mud in the pores on the back, but also use water pressure to open the gaps between the filter cloth fibers, allowing the hidden fine mud to be completely discharged. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings: Figure 1 This is a structural diagram of the present invention; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is the front view of the present invention; Figure 4 This utility model Figure 3 Sectional view of CC; Figure 5 This is a partial structural diagram of the present invention.

[0021] The attached diagram shows the markings and corresponding component names: First drive motor 1, second drive motor 11, third drive motor 12, brush 2, drain pipe 30, first flushing pipe 31, second flushing pipe 32, nozzle 33, active spiral scraper roller 4, driven spiral scraper roller 41, first cloth rolling roller 61, second cloth rolling roller 62, reversing roller 7, guide roller 71, filter cloth 8, drive sprocket 5, chain 51, cleaning box 80, water receiving box 81, top cover 82. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0023] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] In the description of this utility model, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" 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 limiting the scope of protection of this utility model.

[0025] The terms "first," "second," etc., used in this utility model are merely for clarity of description and are not intended to limit any order or emphasize importance. Furthermore, the term "connection" as used herein, unless otherwise specified, can refer to a direct connection or an indirect connection via other components. Example

[0026] like Figures 1-5 As shown, this embodiment provides an automatic cleaning device for filter cloth, including a cleaning component, a driving component, and a cloth winding component. The cleaning component includes several spiral scraper rollers and several rinsing pipes. The spiral scraper rollers are arranged along the width direction of the filter cloth 8. The rinsing pipes are equipped with several nozzles 33, which face the front and back sides of the contact area between the filter cloth 8 and the spiral scraper rollers, respectively. The driving component drives the spiral scraper rollers to rotate. The cloth winding component moves the filter cloth 8. This solves the problem that current cleaning methods do not thoroughly remove stubborn dirt and easily leave blind spots, thus improving the cleaning effect on the filter cloth 8.

[0027] See Figures 1-5 It also includes a cleaning tank 80. The spiral scraper rollers include a driving spiral scraper roller 4 and a driven spiral scraper roller 41, both of which are rotatably connected inside the cleaning tank 80. The cleaning tank 80 supports and positions the driving spiral scraper roller 4 and the driven spiral scraper roller 41, and collects the wastewater generated during the cleaning process.

[0028] See Figure 3 and Figure 4 It also includes a top cover 82, which is connected to the top of the cleaning tank 80 via a connecting bracket. A gap is provided between the top cover 82 and the cleaning tank 80 for the filter cloth 8 to pass through. By providing the top cover 82, water flow and contaminants on the filter cloth 8 are prevented from splashing onto the outside of the cleaning tank 80 during the cleaning process, thus protecting the working environment.

[0029] See Figure 1 and Figure 2The drive assembly includes a first drive motor 1. An active rotating shaft is mounted on the axis of the active spiral scraper roller 4, and a driven rotating shaft is mounted on the axis of the driven spiral scraper roller 41. The first drive motor 1 is located on the outer side of one end of the cleaning tank 80. The first drive motor 1 is connected to the active rotating shaft via a connector. An active sprocket 5 is connected to the outer end of the active rotating shaft in the cleaning tank 80, and a driven sprocket is connected to the outer end of the driven rotating shaft in the cleaning tank 80. The active sprocket 5 and the driven sprocket are connected by a chain 51. By setting the first drive motor 1 to drive the active rotating shaft to rotate, the active spiral scraper roller 4 rotates to scrape mud. Then, the chain 51 drives the driven sprocket to rotate, thereby rotating the driven spiral scraper roller 41. This achieves synchronous rotation of two spiral scraper rollers driven by one drive motor.

[0030] See Figure 1 The system also includes a frame, on which the cleaning tank 80 is mounted. The cloth winding assembly includes a second drive motor 11, a third drive motor 12, and a reversing roller 7. The second drive motor 11 is connected to a first cloth winding roller 61 via a coupling, and the third drive motor 12 is connected to a second cloth winding roller 62 via a coupling. Both the first cloth winding roller 61 and the second cloth winding roller 62 are rotatably connected to the frame and located above the cleaning tank 80. The reversing roller 7 is rotatably connected to the bottom of the cleaning tank 80. In operation, the filter cloth 8 first passes around the first drive roller, then passes around the bottom of the reversing roller 7 to change its direction of movement, and finally winds around the second drive roller. By driving the two cloth rollers with independent motors, the tension of the filter cloth 8 can be precisely controlled by adjusting the speed difference between the two motors. This allows for flexible adaptation to the optimal tension for filter cloths 8 of different thicknesses and materials (such as nylon filter cloth 8 and polyester filter cloth 8). Furthermore, by first winding the filter cloth 8 around the first drive roller, then around the reversing roller 7 at the bottom of the cleaning tank 80, and finally winding it around the second drive roller, the movement path of the filter cloth 8 in the cleaning tank 80 changes from a unidirectional straight line to a bidirectional folding back, extending the residence time of the filter cloth 8 in the cleaning area and achieving thorough cleaning of the surface of the filter cloth 8 point by point.

[0031] See Figure 4 The cloth winding assembly also includes at least two guide rollers 71, both of which are rotatably mounted on the frame and located above and on both sides of the cleaning tank 80. In operation, the filter cloth passes over the outside of the corresponding guide roller 71. Positioning the guide rollers 71 above and outside the cleaning tank 80 prevents the filter cloth from sticking to the top of the cleaning tank 80 due to fluctuations in winding tension, and also prevents it from snagging on components such as motors and couplings on the top of the tank, ensuring a smooth conveying process.

[0032] See Figures 1-4The driven spiral scraper roller 41 is located above one side of the reversing roller 7 and on the front side of the filter cloth 8, while the driving spiral scraper roller 4 is located above the other side of the reversing roller 7 and on the back side of the filter cloth 8. This arrangement allows the filter cloth 8 to face upwards when it passes over one side of the reversing roller 7, enabling the spiral scraper blades of the driven spiral scraper roller 41 to directly act on the front side and peel off the dirt adhering thereto. When the filter cloth 8 folds back and passes over the other side of the reversing roller 7, the back side faces upwards, improving the cleaning effect on the filter cloth 8.

[0033] See Figures 1-4 The rinsing pipe includes a first rinsing pipe 31 and a second rinsing pipe 32. Several nozzles 33 are evenly distributed along the length of the first rinsing pipe 31 and the second rinsing pipe 32. The first rinsing pipe 31 is located below the back of the filter cloth 8, and the second rinsing pipe 32 is located above the front of the filter cloth 8. Both the first rinsing pipe 31 and the second rinsing pipe 32 are connected to an external water pipe. By setting two rinsing pipes, with the second rinsing pipe 32 located above the front, the water flow is directed from top to bottom to directly flush away loose sludge on the front, preventing it from re-embedded in the pores of the filter cloth 8. With the first rinsing pipe 31 located below the back, the water flow is directed from bottom to top to flush out residual mud and dirt in the pores on the back, and the water pressure can also open the gaps between the fibers of the filter cloth 8, allowing the hidden fine mud to be completely discharged.

[0034] See Figure 1 and Figure 4 The top cover 82 has brushes 2 on both sides of its bottom. The brushes 2 are arranged along the length of the top cover 82, with the bristles facing the filter cloth 8. By setting the brushes 2 to wipe away or drain residual water droplets in the pores, water droplets are prevented from dripping and contaminating the equipment when entering the next stage (such as filtration or cloth rolling), or from causing secondary adhesion of dirt due to residual moisture.

[0035] See Figure 2 It also includes a water receiving tank and a drain pipe 30. The water receiving tank is installed on one side of the cleaning tank 80 and below the second cloth roll 62. The water receiving tank is open. The drain pipe 30 is connected to two drain branch pipes, which are respectively installed at the bottom of the water receiving tank 81 and the bottom of the cleaning tank 80. By setting the water receiving tank 81 directly below the second cloth roll 62, water droplets dripping from the filter cloth 8 during winding are caught, and wastewater generated by the double rinsing pipe is discharged in time through the drain pipe 30 from the bottom branch pipe of the cleaning tank 80, ensuring that the spiral scraper roller is always in effective contact with the filter cloth 8.

[0036] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An automatic cleaning device for filter cloth, characterized in that, include: A cleaning assembly includes several spiral scraper rollers and several flushing pipes. The spiral scraper rollers are used to scrape off contaminants from the filter cloth. The flushing pipes are equipped with several nozzles, which are respectively directed towards the front and back of the contact area between the filter cloth and the spiral scraper rollers. A drive assembly that drives the spiral scraper roller to rotate; A cloth winding assembly that drives the filter cloth to move.

2. The automatic cleaning device for filter cloth according to claim 1, characterized in that, It also includes a cleaning tank, and the spiral scraper roller includes a driving spiral scraper roller and a driven spiral scraper roller, both of which are rotatably connected inside the cleaning tank.

3. The automatic cleaning device for filter cloth according to claim 2, characterized in that, It also includes a top cover, which is connected to the top of the cleaning tank via a connecting bracket, and a gap is provided between the top cover and the cleaning tank for the filter cloth to pass through.

4. The automatic cleaning device for filter cloth according to claim 2, characterized in that, The drive assembly includes a first drive motor, an active rotating shaft mounted on the axis of the active spiral scraper roller, and a driven rotating shaft mounted on the axis of the driven spiral scraper roller. The first drive motor is located on the outside of one end of the cleaning tank and is connected to the active rotating shaft via a connector. An active sprocket is connected to the outside end of the active rotating shaft, and a driven sprocket is connected to the outside end of the driven rotating shaft. The active sprocket and the driven sprocket are connected by a chain drive.

5. The automatic cleaning device for filter cloth according to claim 2, characterized in that, It also includes a frame, on which the cleaning tank is mounted. The cloth winding assembly includes a second drive motor, a third drive motor, and a reversing roller. The second drive motor is connected to a first cloth winding roller via a coupling, and the third drive motor is connected to a second cloth winding roller via a coupling. Both the first and second cloth winding rollers are rotatably connected to the frame and located above the cleaning tank. The reversing roller is rotatably connected to the bottom of the cleaning tank. In operation, the filter cloth first passes around the first drive roller, then passes around the bottom of the reversing roller to change its direction of movement, and finally winds around the second drive roller.

6. The automatic cleaning device for filter cloth according to claim 5, characterized in that, The cloth roll assembly also includes at least two guide rollers, both of which are rotatably mounted on the frame and located above the two sides of the cleaning tank. In operation, the filter cloth passes over the outside of the corresponding guide roller.

7. The automatic cleaning device for filter cloth according to claim 5, characterized in that, The driven spiral scraper roller is located above one side of the reversing roller and on the front side of the filter cloth, while the active spiral scraper roller is located above the other side of the reversing roller and on the back side of the filter cloth.

8. The automatic cleaning device for filter cloth according to claim 5, characterized in that, The rinsing pipe includes a first rinsing pipe and a second rinsing pipe. Several nozzles are evenly distributed along the length of the first rinsing pipe and the second rinsing pipe. The first rinsing pipe is located below the back of the filter cloth, and the second rinsing pipe is located above the front of the filter cloth. Both the first rinsing pipe and the second rinsing pipe are connected to an external water pipe.

9. The automatic cleaning device for filter cloth according to claim 3, characterized in that, Both sides of the bottom of the top cover are provided with brushes, which are arranged along the length of the top cover and the bristles of the brushes face the filter cloth.

10. The automatic cleaning device for filter cloth according to any one of claims 2-9, characterized in that, It also includes a water receiving tank and a drain pipe. The water receiving tank is installed on one side of the washing tank and located below the second roll of cloth. The water receiving tank is open. The drain pipe is connected to two drain branch pipes, which are respectively installed at the bottom of the water receiving tank and the washing tank.

Images