A plate filter press cleaning device

Abstract

The application discloses a plate filter press material cleaning device, and belongs to the technical field of filter press auxiliary equipment, which comprises a portal frame; a support is fixedly installed on the side wall of the portal frame, a threaded rod is vertically rotatably inserted on the support, a stepping motor with an output end fixedly connected with the rotating shaft of the threaded rod is fixedly installed on the support, and a sliding block is threadedly installed on the threaded rod; the grinding roller and the anti-abrasion mechanism are matched with each other, after solid substances are crushed, the negative pressure mechanism is used to suck out the partially crushed granular impurities in the surface hole of the filter cloth, so that the remaining granular impurities are prevented from being stuck in the surface hole of the filter cloth, then water flows into the surface hole of the filter cloth, the granular impurities remaining in the hole are driven to flow together by the water flow, compared with direct water spraying for cleaning, the impact force borne by the solid impurities can be reduced in the cleaning process, and the probability that the solid impurities are forced to be embedded in the deep part of the filter cloth hole is reduced.

Description

Technical Field

[0001] This invention relates to the field of filter press equipment technology, and more specifically, to a cleaning device for a plate filter press. Background Technology

[0002] Plate filter presses are solid-liquid separation equipment widely used in industries such as chemical, pharmaceutical, metallurgy, food, and environmental protection. Their working principle involves applying high pressure to multiple filter plates, causing the filter chambers between the plates to separate the solid and liquid components of the slurry under pressure, forming a filter cake. After filtration, the filter plates need to be pulled apart one by one to remove the filter cake.

[0003] During operation, plate filter presses often accumulate a large amount of solid impurities on the surface of the filter cloth, which have been pressed, shaped, and dried. Currently, the industry commonly uses high-pressure water jet technology to wash and clean the filter cloth. However, when high-pressure water impacts the filter cloth, the particulate impurities it carries are easily forced into the deep pores of the filter cloth fibers under the impact of high pressure. This prevents the effective unblocking of the filter cloth pores and instead leads to more serious internal blockage problems, causing an irreversible decline in the filter cloth's permeability.

[0004] Therefore, a cleaning device for a plate filter press is proposed. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a cleaning device for a plate filter press, which can reduce the probability of filter cloth being blocked during the cleaning process and improve the unblocking effect of the filter cloth.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A cleaning device for a plate filter press includes a gantry frame; A bracket is fixedly installed on the side wall of the gantry frame. A threaded rod is vertically inserted into the bracket and rotates. A stepper motor with its output end fixedly connected to the rotating shaft of the threaded rod is fixedly installed on the bracket. A slider is threaded onto the threaded rod. A rotating rod is horizontally inserted into the side wall of the slider, and a grinding roller is fixedly installed at the end of the rotating rod. The gantry frame is equipped with an anti-wear mechanism that cooperates with the grinding roller. A protective cover is fixedly installed on the side wall of the slider. The protective cover is fitted over the outside of the grinding roller, and the side wall of the protective cover has a through-hole that cooperates with the grinding roller. The grinding roller is equipped with a negative pressure mechanism to keep the space between the outer wall of the grinding roller and the inner wall of the protective cover in a negative pressure state. A horizontal tube is fixedly installed on the bottom wall of the slider. The horizontal tube is located below the grinding roller. Drainage holes are opened on the side wall of the horizontal tube, and a water supply mechanism for supplying water to the horizontal tube is provided on the gantry frame.

[0008] Furthermore, the anti-wear mechanism includes toothed grooves evenly spaced on the front wall of the gantry, and a gear that meshes with the toothed grooves is fixedly sleeved on the rotating rod.

[0009] Furthermore, the negative pressure mechanism includes a mounting tube rotatably inserted into the side wall of the protective cover at the end away from the rotating rod. A turbine is fixedly installed inside the mounting tube. The turbine is located at the end of the mounting tube away from the grinding roller. Air inlets are evenly opened on the side wall of the mounting tube. The air inlets are located between the turbine and the grinding roller. The mounting tube is fixedly connected to the end face of the grinding roller.

[0010] Furthermore, the protective cover has a flow guide cavity, and the inner wall of the protective cover has holes that communicate with the flow guide cavity; and the air inlet is connected to the flow guide cavity.

[0011] Furthermore, the water supply mechanism includes a water tank fixedly installed on a bracket, a solenoid valve fixedly installed on the output end of the water tank, and an elastic tube with its bottom end extending into a horizontal pipe fixedly installed on the output end of the solenoid valve.

[0012] Furthermore, the grinding roller has a cavity, and horizontal bars parallel to the grinding roller are evenly installed on the side wall of the cavity. The horizontal bars are evenly distributed circumferentially, and the cavity is filled with balls.

[0013] Furthermore, a scraper is fixedly installed on the inner wall of the protective cover, and the scraper is in contact with the side wall of the grinding roller.

[0014] Furthermore, the scraper is vertically fixed on the inner bottom wall of the protective cover.

[0015] Furthermore, a bellows is fixedly installed on the top wall of the slider, and the two ends of the bellows are fixedly connected to the slider and the bracket, respectively.

[0016] Furthermore, both the scraper and the ball bearing are made of magnetic material, and the scraper and the ball bearing attract each other.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) This solution uses the cooperation of grinding roller and anti-wear mechanism to crush solid material and then use negative pressure mechanism to suck out part of the crushed particulate impurities in the pores of the filter cloth surface, thereby preventing the remaining particulate impurities from getting stuck in the pores of the filter cloth surface. Then, water flows into the pores of the filter cloth surface and the water flows together with the particulate impurities remaining in the pores. Compared with direct water spraying for cleaning, this solution can reduce the impact force on solid impurities during the cleaning process and reduce the probability of solid impurities being forced to embed deep into the pores of the filter cloth.

[0018] (2) When the grinding roller in this scheme rotates, the balls inside the cavity move together. During the rotation, the balls are blocked and propelled by the crossbar, thus being lifted to a certain height. Subsequently, the balls detach from the crossbar under their own gravity and fall back, eventually hitting the bottom wall of the cavity, thereby generating an impact force. The grinding roller transmits the impact force to the filter cloth. Therefore, when the grinding roller crushes the solid impurities in the filter cloth pores, the crushed solid impurity particles in the filter cloth pores will be shaken off under the action of the impact force, thereby reducing the impurity content in the filter cloth pores, that is, preventing impurities from getting stuck in the filter cloth pores. When water flows into the filter cloth pores, it plays a role in ensuring that the impurities remaining in the filter cloth pores can flow out of the pores with the water flow.

[0019] (3) By setting up a scraper, the impurities adhering to the surface of the grinding roller can be scraped off during the rotation of the grinding roller, thus preventing the impurities from re-adhering to the surface of the filter cloth. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a bottom-view structural diagram of the present invention; Figure 3 This is a schematic diagram of the back structure of the present invention; Figure 4 This is a schematic diagram of the combined structure of the gear tooth groove of the present invention; Figure 5 This is a schematic cross-sectional view of the combined grinding roller and protective cover of the present invention; Figure 6 This is a cross-sectional view of the grinding roller of the present invention; Figure 7 For the present invention Figure 5 A magnified structural diagram at point M.

[0021] Explanation of the labels in the diagram: 1. Gantry frame; 2. Support; 3. Threaded rod; 4. Stepper motor; 5. Slider; 6. Guide rod; 7. Rotating rod; 8. Grinding roller; 9. Protective cover; 10. Horizontal tube; 11. Drain hole; 12. Gear groove; 13. Gear; 14. Mounting tube; 15. Turbine; 16. Air inlet; 17. Water tank; 18. Solenoid valve; 19. Elastic tube; 20. Cavity; 21. Crossbar; 22. Ball bearing; 23. Scraper; 24. Guide cavity; 25. Hole; 26. Corrugated pipe. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. Example 1:

[0023] Please see Figures 1 to 7 A cleaning device for a plate filter press, comprising a gantry frame 1; A bracket 2 is fixedly installed on the side wall of the gantry frame 1. A threaded rod 3 is vertically rotatably inserted into the bracket 2. A stepper motor 4 with its output end fixedly connected to the rotating shaft of the threaded rod 3 is fixedly installed on the bracket 2. A slider 5 is threadedly installed on the threaded rod 3. A guide rod 6 that passes through the slider 5 is vertically fixedly installed on the bracket 2, and the slider 5 is slidably sleeved on the guide rod 6, thereby preventing the slider 5 from rotating during the rotation of the threaded rod 3 and ensuring that the slider 5 can only move up and down along the threaded rod 3. A rotating rod 7 is horizontally inserted into the side wall of the slider 5, and a grinding roller 8 is fixedly installed at the end of the rotating rod 7. The gantry frame 1 is provided with an anti-wear mechanism that cooperates with the grinding roller 8. A protective cover 9 is fixedly installed on the side wall of the slider 5. The protective cover 9 is sleeved on the outside of the grinding roller 8, and the side wall of the protective cover 9 has a through-hole that cooperates with the grinding roller 8. Therefore, the side wall of the grinding roller 8 can be exposed through the through-hole. The grinding roller 8 is provided with a negative pressure mechanism for making the space between the outer wall of the grinding roller 8 and the inner wall of the protective cover 9 a negative pressure state. A horizontal tube 10 is fixedly installed on the bottom wall of the slider 5. The horizontal tube 10 is located below the grinding roller 8. A drain hole 11 is provided on the side wall of the horizontal tube 10, and a water supply mechanism for supplying water to the horizontal tube 10 is provided on the gantry frame 1.

[0024] The stepper motor 4 can be controlled by a program, so a preset program can be used to make the stepper motor 4 drive the threaded rod 3 to rotate in both directions.

[0025] The anti-wear mechanism includes toothed grooves 12 evenly distributed on the front wall of the gantry frame 1, and a gear 13 that meshes with the toothed grooves 12 is fixedly sleeved on the rotating rod 7.

[0026] First, move the gantry frame 1 to the designated position so that the grinding roller 8 is in close contact with the surface of the filter cloth.

[0027] Then start the stepper motor 4, which drives the threaded rod 3 to rotate forward, thereby moving the slider 5 to the bottom end of the threaded rod 3. Then, the stepper motor 4 drives the threaded rod 3 to rotate in reverse, causing the slider 5 to move upward along the threaded rod 3 and reset.

[0028] As the slider 5 moves up and down along the threaded rod 3, the gear 13 drives the rotating rod 7 to rotate under the interaction of the gear 13 and the tooth groove 12. This causes the grinding roller 8 to roll on the surface of the filter plate of the plate filter press, thereby reducing the friction on the filter cloth. At the same time, the grinding roller 8 applies pressure to the filter cloth on the surface of the filter plate, which crushes the dry solid impurities attached to the surface of the filter cloth and in the filter cloth pores 25, facilitating subsequent cleaning. When the grinding roller 8 rotates, it can reduce the friction on the filter cloth and prevent damage to the filter cloth.

[0029] Meanwhile, when the grinding roller 8 is pressing the filter cloth, under the action of the negative pressure mechanism, the space between the inner wall of the protective cover 9 and the outer wall of the grinding roller 8 is in a negative pressure state. This space draws air from the surface of the filter cloth through the through-hole, thereby attracting the crushed particulate impurities in the holes 25 on the surface of the filter cloth, drawing out the impurities, reducing the impurity content in the holes 25 of the filter cloth, and thus preventing the crushed impurities from getting stuck in the holes 25 of the filter cloth, which reduces the difficulty of cleaning.

[0030] When slider 5 moves up to its maximum extent again, stepper motor 4 stops working. At this time, the water supply mechanism supplies water to horizontal pipe 10, which discharges through drain hole 11. The water flows downward along the surface of filter cloth, so that the crushed impurities in the holes 25 on the surface of filter cloth can be soaked in the water flow. The impurities flow downward along the water flow until they are no longer in contact with the filter cloth.

[0031] Therefore, through the cooperation of the grinding roller 8 and the anti-wear mechanism, after the solid material is crushed, the negative pressure mechanism sucks out some of the crushed particulate impurities in the holes 25 on the surface of the filter cloth, thereby preventing the remaining particulate impurities from getting stuck in the holes 25 on the surface of the filter cloth. Then, water flows into the holes 25 on the surface of the filter cloth, and the water flow carries the particulate impurities remaining in the holes 25 along with it. Compared with direct water spraying for cleaning, the impact force on the solid impurities can be reduced during the cleaning process, and the probability of the solid impurities being forced to embed deep into the holes 25 of the filter cloth can be reduced.

[0032] like Figure 7 As shown, the negative pressure mechanism includes an installation tube 14 rotatably inserted into the side wall of the protective cover 9 at the end away from the rotating rod 7. A turbine 15 is fixedly installed inside the installation tube 14. The turbine 15 is located at the end of the installation tube 14 away from the grinding roller 8. Air inlets 16 are evenly opened on the side wall of the installation tube 14. The air inlets 16 are located between the turbine 15 and the grinding roller 8, and the installation tube 14 is fixedly connected to the end face of the grinding roller 8.

[0033] The protective cover 9 has a flow guide cavity 24, and the inner side wall of the protective cover 9 has holes 25 that communicate with the flow guide cavity 24 evenly; and the air inlet 16 communicates with the flow guide cavity 24.

[0034] When the grinding roller 8 drives the mounting tube 14 to rotate, the turbine 15 also rotates. At this time, the gas in the mounting tube 14 is pushed outward by the turbine 15, and the mounting tube 14 draws air from the guide cavity 24 through the air inlet 16. The guide cavity 24 draws air from the space between the grinding roller 8 and the inner wall of the protective cover 9 through the hole 25, so that the space is in a negative pressure state.

[0035] like Figure 3 As shown, the water supply mechanism includes a water tank 17 fixedly installed on the bracket 2. A solenoid valve 18 is fixedly installed on the output end of the water tank 17. An elastic tube 19 extending into the horizontal pipe 10 is fixedly installed on the output end of the solenoid valve 18. When water needs to be supplied to the horizontal pipe 10, the solenoid valve 18 is opened. At this time, the water in the water tank 17 is discharged into the horizontal pipe 10 through the elastic tube 19, thereby supplying water to the horizontal pipe 10. Since the elastic tube 19 can extend and retract, it plays a role in ensuring that the slider 5 can move normally.

[0036] like Figure 6 As shown, a cavity 20 is provided on the grinding roller 8, and crossbars 21 parallel to the grinding roller 8 are evenly installed on the side wall of the cavity 20. The crossbars 21 are evenly distributed circumferentially, and the cavity 20 is filled with balls 22.

[0037] When the grinding roller 8 rotates, the balls 22 inside the cavity 20 move along with it. During the rotation, the balls 22 are blocked and propelled by the crossbar 21, thus being lifted to a certain height. Subsequently, the balls 22 detach from the crossbar 21 under their own gravity and fall back, eventually impacting the bottom wall of the cavity 20, thereby generating an impact force.

[0038] Furthermore, the grinding roller 8 transmits the impact force to the filter cloth. Therefore, when the grinding roller 8 crushes the solid impurities in the filter cloth pores 25, the crushed solid impurity particles in the filter cloth pores 25 will be shaken off under the action of the impact force, thereby reducing the impurity content in the filter cloth pores 25, that is, preventing impurities from getting stuck in the filter cloth pores 25. When water flows into the filter cloth pores 25, it plays a role in ensuring that the impurities remaining in the filter cloth pores 25 can flow out of the pores 25 with the water flow.

[0039] like Figure 6 As shown, a scraper 23 is fixedly installed on the inner wall of the protective cover 9, and the scraper 23 is in contact with the side wall of the grinding roller 8. Therefore, during the rotation of the grinding roller 8, the scraper 23 can scrape off the impurities adhering to the surface of the grinding roller 8, which plays a role in preventing impurities from adhering to the surface of the filter cloth again.

[0040] like Figure 6As shown, the scraper 23 is vertically fixed on the inner bottom wall of the protective cover 9. Therefore, the scraped impurities will automatically fall downwards, which prevents impurities from entering the gap between the scraper 23 and the surface of the grinding roller 8, and ensures that the scraper 23 can scrape the impurities on the surface of the grinding roller 8 clean.

[0041] like Figure 5 As shown, a bellows 26 is fixedly installed on the top wall of the slider 5. The two ends of the bellows 26 are fixedly connected to the slider 5 and the bracket 2 respectively. Therefore, it can prevent external impurities from accumulating on the top wall of the slider 5 and entering the connection between the slider 5 and the threaded rod 3, thus ensuring that the threaded rod 3 can drive the slider 5 to move normally.

[0042] like Figure 6 As shown, both the scraper 23 and the ball 22 are made of magnetic material, and the scraper 23 and the ball 22 attract each other. Therefore, when the ball 22 falls, it increases the impact force of the ball 22 on the grinding roller 8, and improves the cleaning effect on the impurities attached to the surface of the grinding roller 8.

[0043] Instructions for use: First, move the gantry frame 1 to the designated position so that the grinding roller 8 is in close contact with the surface of the filter cloth.

[0044] Then start the stepper motor 4, which drives the threaded rod 3 to rotate forward, thereby moving the slider 5 to the bottom end of the threaded rod 3. Then, the stepper motor 4 drives the threaded rod 3 to rotate in reverse, causing the slider 5 to move upward along the threaded rod 3 and reset.

[0045] As the slider 5 moves up and down along the threaded rod 3, the gear 13 drives the rotating rod 7 to rotate under the interaction of the gear 13 and the tooth groove 12. This causes the grinding roller 8 to roll on the surface of the filter plate of the plate filter press, thereby reducing the friction on the filter cloth. At the same time, the grinding roller 8 applies pressure to the filter cloth on the surface of the filter plate, which crushes the dry solid impurities attached to the surface of the filter cloth and in the filter cloth pores 25, facilitating subsequent cleaning. When the grinding roller 8 rotates, it can reduce the friction on the filter cloth and prevent damage to the filter cloth.

[0046] Meanwhile, when the grinding roller 8 is pressing the filter cloth, under the action of the negative pressure mechanism, the space between the inner wall of the protective cover 9 and the outer wall of the grinding roller 8 is in a negative pressure state. This space draws air from the surface of the filter cloth through the through-hole, thereby attracting the crushed particulate impurities in the holes 25 on the surface of the filter cloth, drawing out the impurities, reducing the impurity content in the holes 25 of the filter cloth, and thus preventing the crushed impurities from getting stuck in the holes 25 of the filter cloth, which reduces the difficulty of cleaning.

[0047] When slider 5 moves up to its maximum extent again, stepper motor 4 stops working. At this time, the water supply mechanism supplies water to horizontal pipe 10, which discharges through drain hole 11. The water flows downward along the surface of filter cloth, so that the crushed impurities in the holes 25 on the surface of filter cloth can be soaked in the water flow. The impurities flow downward along the water flow until they are no longer in contact with the filter cloth.

[0048] Therefore, through the cooperation of the grinding roller 8 and the anti-wear mechanism, after the solid material is crushed, the negative pressure mechanism sucks out some of the crushed particulate impurities in the holes 25 on the surface of the filter cloth, thereby preventing the remaining particulate impurities from getting stuck in the holes 25 on the surface of the filter cloth. Then, water flows into the holes 25 on the surface of the filter cloth, and the water flow carries the particulate impurities remaining in the holes 25 along with it. Compared with direct water spraying for cleaning, the impact force on the solid impurities can be reduced during the cleaning process, and the probability of the solid impurities being forced to embed deep into the holes 25 of the filter cloth can be reduced.

[0049] The above are merely preferred embodiments of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concept, should be covered within the scope of protection of the present invention.

Claims

1. A cleaning device for a plate filter press, comprising a gantry frame (1); Its features are: A bracket (2) is fixedly installed on the side wall of the gantry (1). A threaded rod (3) is vertically rotatably inserted on the bracket (2). A stepper motor (4) with its output end fixedly connected to the rotating shaft of the threaded rod (3) is fixedly installed on the bracket (2). A slider (5) is threadedly installed on the threaded rod (3). A rotating rod (7) is horizontally inserted into the side wall of the slider (5), and a grinding roller (8) is fixedly installed at the end of the rotating rod (7). A wear-resistant mechanism that cooperates with the grinding roller (8) is provided on the gantry frame (1). A protective cover (9) is fixedly installed on the side wall of the slider (5). The protective cover (9) is sleeved on the outside of the grinding roller (8), and a through-hole that cooperates with the grinding roller (8) is opened on the side wall of the protective cover (9); and a negative pressure mechanism is provided on the grinding roller (8) to make the space between the outer wall of the grinding roller (8) and the inner wall of the protective cover (9) negative pressure. A horizontal tube (10) is fixedly installed on the bottom wall of the slider (5). The horizontal tube (10) is located below the grinding roller (8). A drain hole (11) is opened on the side wall of the horizontal tube (10). A water supply mechanism for supplying water to the horizontal tube (10) is provided on the gantry frame (1). The grinding roller (8) has a cavity (20) and a crossbar (21) parallel to the grinding roller (8) is evenly installed on the side wall of the cavity (20). The crossbar (21) is evenly distributed in a circle and the cavity (20) is filled with balls (22). A scraper (23) is fixedly installed on the inner wall of the protective cover (9), and the scraper (23) is in contact with the side wall of the grinding roller (8); The scraper (23) is vertically fixed on the inner bottom wall of the protective cover (9); Both the scraper (23) and the ball (22) are made of magnetic material, and the scraper (23) and the ball (22) attract each other. The anti-wear mechanism includes toothed grooves (12) evenly opened on the front wall of the gantry frame (1), and a gear (13) that meshes with the toothed grooves (12) is fixedly sleeved on the rotating rod (7). The negative pressure mechanism includes an installation tube (14) rotatably inserted into the side wall of the protective cover (9) away from the rotating rod (7). A turbine (15) is fixedly installed inside the installation tube (14). The turbine (15) is located at the end of the installation tube (14) away from the grinding roller (8). Air inlets (16) are evenly opened on the side wall of the installation tube (14). The air inlets (16) are located between the turbine (15) and the grinding roller (8). The installation tube (14) is fixedly connected to the end face of the grinding roller (8). The protective cover (9) has a flow guide cavity (24) and the inner sidewall of the protective cover (9) has holes (25) that communicate with the flow guide cavity (24); and the air inlet (16) communicates with the flow guide cavity (24).

2. The cleaning device for a plate filter press according to claim 1, characterized in that: The water supply mechanism includes a water tank (17) fixedly installed on a bracket (2), a solenoid valve (18) fixedly installed on the output end of the water tank (17), and an elastic tube (19) with its bottom end extending into the horizontal tube (10) fixedly installed on the output end of the solenoid valve (18).

3. The cleaning device for a plate filter press according to claim 1, characterized in that: A corrugated pipe (26) is fixedly installed on the top wall of the slider (5), and the two ends of the corrugated pipe (26) are fixedly connected to the slider (5) and the bracket (2) respectively.

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