Material cleaning device of plate filter press

Abstract

The invention discloses a material cleaning device of a plate filter press, and belongs to the technical field of filter press corollary equipment. A support is fixedly installed on the side wall of the portal frame, a threaded rod is vertically and rotatably inserted into the support, a stepping motor with the output end fixedly connected with a rotating shaft of the threaded rod is fixedly installed on the support, and a sliding block is installed on the threaded rod in a threaded mode. According to the scheme, through mutual cooperation of the grinding roller and the anti-abrasion mechanism, after solid substances are crushed, part of crushed granular impurities in the holes in the surface of the filter cloth are sucked out through the negative pressure mechanism, so that the other granular impurities are prevented from being clamped in the holes in the surface of the filter cloth and then enter the holes in the surface of the filter cloth through water flow; the granular impurities remaining in the holes are driven by water flow to flow together, compared with direct water spraying material cleaning, the impact force borne by the solid impurities can be reduced in the material cleaning process, and the probability that the solid impurities are forced to be embedded into the deep positions of the holes of the filter cloth is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of filter press supporting equipment, and more particularly to a material cleaning device for a plate filter press. Background Art

[0002] A plate filter press is a type of solid-liquid separation equipment widely used in the chemical, pharmaceutical, metallurgical, food, and environmental protection industries. Its working principle is to apply high pressure to multiple filter plates, causing the filter chambers between the plates to separate the solid and liquid in the slurry under pressure, forming a filter cake. After filtration is completed, the filter plates need to be pulled apart one by one to remove the filter cake.

[0003] During operation, a large amount of solid impurities formed by filtration and then air-dried often adhere to the filter cloth surface of a plate filter press. Currently, high-pressure water jets are widely used to clean filter cloths. However, when high-pressure water jets impact the filter cloth, the impurities carried by the impurities are easily forced into the deep pores of the filter cloth fibers. This prevents effective pore clearing and instead leads to more serious internal blockage, resulting in an irreversible decline in the filter cloth's permeability.

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

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

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

[0007] A plate filter press cleaning device comprises a gantry; A bracket is fixedly mounted on the side wall of the gantry, a threaded rod is inserted into the bracket for vertical rotation, a stepper motor whose output end is fixedly connected to the rotating shaft of the threaded rod is fixedly mounted on the bracket, and a slider is threadedly mounted on the threaded rod; A rotating rod is inserted horizontally on the side wall of the slider, a grinding roller is fixedly installed on the end of the rotating rod, and an anti-wear mechanism cooperating with the grinding roller is provided on the gantry; A protective cover is fixedly mounted on the side wall of the slider, and the protective cover is sleeved on the outside of the grinding roller. A through hole is opened on the side wall of the protective cover to cooperate with the grinding roller; and a negative pressure mechanism is provided on the grinding roller for keeping 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 pipe is fixedly installed on the bottom wall of the slider, and the horizontal pipe is located below the grinding roller. Drain holes are opened on the side walls of the horizontal pipe, and a water supply mechanism for supplying water to the horizontal pipe is provided on the gantry.

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

[0009] Furthermore, the negative pressure mechanism includes a mounting tube that is rotatably inserted on the side wall of the protective cover away from the rotating rod, and 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 inlet holes are evenly opened on the side wall of the mounting tube, and the air inlet holes are located between the turbine and the grinding roller, and the mounting tube is fixedly connected to the end face of the grinding roller.

[0010] Furthermore, a guide cavity is provided on the protective cover, and holes communicating with the guide cavity are evenly provided on the inner side wall of the protective cover; and the air inlet is communicated with the guide cavity.

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

[0012] Furthermore, a cavity is provided on the grinding roller, and cross bars parallel to the grinding roller are evenly installed on the side walls of the cavity. The cross bars are evenly distributed around the circumference, and balls are installed in the cavity.

[0013] Furthermore, a scraper is fixedly mounted on the inner side 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 fixedly mounted on the inner bottom wall of the protective cover.

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

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

[0017] Compared with the prior art, the present invention has the following beneficial effects: (1) This solution uses the cooperation between the grinding roller and the anti-wear mechanism. After the solid matter is crushed, the negative pressure mechanism sucks out some of the crushed granular impurities in the holes on the filter cloth surface, thereby preventing the remaining granular impurities from being stuck in the holes on the filter cloth surface. Then, water flows into the holes on the filter cloth surface, and the granular impurities remaining in the holes are driven to flow together by the water flow. Compared with direct water spraying for cleaning, this solution can reduce the impact force on the solid impurities during the cleaning process, thereby reducing the probability of solid impurities being forced to embed deep into the holes of the filter cloth.

[0018] (2) When the grinding roller in this scheme rotates, the balls in the cavity move along with it. During the rotation process, the balls are blocked and pushed by the crossbar, and are thus lifted to a certain height. Subsequently, the balls break away from the crossbar under the action of 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 pores of the filter cloth, the crushed solid impurity particles in the pores of the filter cloth will be shaken off under the action of the impact force, thereby reducing the impurity content in the pores of the filter cloth, that is, preventing impurities from being stuck in the pores of the filter cloth. When water flows into the pores of the filter cloth, it plays a role in ensuring that the impurities remaining in the pores of the filter cloth can flow out of the pores with the water flow.

[0019] (3) This solution provides a scraper, which can scrape off impurities adhering to the surface of the grinding roller during the rotation of the grinding roller, thereby preventing the impurities from adhering to the surface of the filter cloth again. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a bottom view structural schematic 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 teeth of the present invention; Figure 5 This is a schematic cross-sectional view of the combined structure of the grinding roller and the protective cover of the present invention; Figure 6 Schematic diagram of the cross-sectional structure of the grinding roller of the present invention; Figure 7 For the present invention Figure 5 Schematic diagram of the enlarged structure at M in the middle.

[0021] Description of the numbers in the figure: 1. Gantry; 2. Bracket; 3. Threaded rod; 4. Stepper motor; 5. Slider; 6. Guide rod; 7. Rotating rod; 8. Grinding roller; 9. Protective cover; 10. Cross pipe; 11. Drain hole; 12. Tooth groove; 13. Gear; 14. Mounting pipe; 15. Turbine; 16. Air inlet; 17. Water tank; 18. Solenoid valve; 19. Elastic tube; 20. Cavity; 21. Cross bar; 22. Ball; 23. Scraper; 24. Diversion chamber; 25. Hole; 26. Bellows. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Example 1:

[0023] See also Figures 1 to 7 , a plate filter press cleaning device, comprising a gantry 1; A bracket 2 is fixedly mounted on the side wall of the gantry 1, a threaded rod 3 is vertically rotatably inserted on the bracket 2, a stepping motor 4 whose output end is fixedly connected to the rotating shaft of the threaded rod 3 is fixedly mounted on the bracket 2, a slider 5 is threadedly mounted on the threaded rod 3, a guide rod 6 that passes through the slider 5 is vertically fixedly mounted 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, ensuring that the slider 5 can only move up and down along the threaded rod 3; A rotating rod 7 is inserted horizontally and rotatably on the side wall of the slider 5, and a grinding roller 8 is fixedly installed on the end of the rotating rod 7, and an anti-wear mechanism cooperating with the grinding roller 8 is provided on the gantry 1; A protective cover 9 is fixedly mounted on the side wall of the slider 5. The protective cover 9 is sleeved on the outside of the grinding roller 8. A through hole is opened on the side wall of the protective cover 9 to cooperate with the grinding roller 8, so that the side wall of the grinding roller 8 can be exposed to the outside through the through hole. A negative pressure mechanism is provided on the grinding roller 8 for maintaining a negative pressure in the space between the outer wall of the grinding roller 8 and the inner wall of the protective cover 9. A transverse pipe 10 is fixedly mounted horizontally on the bottom wall of the slider 5 , and the transverse pipe 10 is located below the grinding roller 8 . A drainage hole 11 is provided on the side wall of the transverse pipe 10 , and a water supply mechanism for supplying water to the transverse pipe 10 is provided on the gantry 1 .

[0024] The operation of the stepping motor 4 can be controlled by a program, so a program can be preset to enable the stepping motor 4 to drive the threaded rod 3 to rotate forward and reverse.

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

[0026] First, move the gantry 1 to the specified 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, so that the slider 5 moves to the bottom end of the threaded rod 3, and then the stepper motor 4 drives the threaded rod 3 to rotate reversely, so that the slider 5 moves up along the threaded rod 3 and resets.

[0028] As the slider 5 moves up and down along the threaded rod 3, the gear 13 cooperates with the tooth groove 12 to drive the rotating rod 7 to rotate, thereby driving the grinding roller 8 to roll on the filter plate surface 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 filter plate surface, thereby crushing dry solid impurities adhering to the filter cloth surface and in the filter cloth holes 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] At the same time, when the grinding roller 8 rolls 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. The space draws air from the surface of the filter cloth through the through-hole, so that the crushed granular impurities in the holes 25 on the surface of the filter cloth are attracted and the impurities are sucked out, reducing the impurity content in the holes 25 of the filter cloth, thereby preventing the crushed impurities from being stuck in the holes 25 of the filter cloth, and reducing the difficulty of cleaning the material.

[0030] When the slider 5 moves up to the maximum again, the stepper motor 4 stops working. At this time, the water supply mechanism supplies water to the horizontal pipe 10, and the horizontal pipe 10 discharges water through the drainage hole 11. The water flows downward along the surface of the filter cloth, so that the crushed impurities in the holes 25 on the surface of the filter cloth can be immersed in the water flow, and the impurities flow downward along the water flow until they are out of contact with the filter cloth.

[0031] Therefore, through the mutual cooperation between the grinding roller 8 and the anti-wear mechanism, after the solid matter is crushed, some of the crushed granular impurities in the holes 25 on the surface of the filter cloth are sucked out by the negative pressure mechanism, thereby preventing the remaining granular impurities from being stuck in the holes 25 on the surface of the filter cloth. Then the water flows into the holes 25 on the surface of the filter cloth, and the granular impurities remaining in the holes 25 are driven by the water flow to flow together. 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 is reduced.

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

[0033] A guide cavity 24 is formed on the protective cover 9 , and holes 25 communicating with the guide cavity 24 are evenly formed on the inner wall of the protective cover 9 ; and the air inlet 16 is communicated with the 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, thereby putting the space in a negative pressure state.

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

[0036] like Figure 6 As shown, a cavity 20 is formed on the grinding roller 8 , and cross bars 21 parallel to the grinding roller 8 are evenly mounted on the side walls of the cavity 20 . The cross bars 21 are evenly distributed around the circumference, and balls 22 are installed in the cavity 20 .

[0037] As the grinding roller 8 rotates, the balls 22 in the cavity 20 move with it. During rotation, the balls 22 are blocked and moved by the crossbar 21, lifting them to a certain height. Subsequently, under the influence of their own weight, the balls 22 break away from the crossbar 21 and fall back, eventually striking the bottom wall of the cavity 20, generating an impact force.

[0038] In addition, 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 holes 25, the crushed solid impurity particles in the filter cloth holes 25 will be shaken off under the action of the impact force, thereby reducing the impurity content in the filter cloth holes 25, that is, preventing impurities from being stuck in the filter cloth holes 25. When water flows into the filter cloth holes 25, it plays a role in ensuring that the impurities remaining in the filter cloth holes 25 can flow out of the holes 25 with the water flow.

[0039] like Figure 6 As shown, a scraper 23 is fixedly mounted 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, impurities adhering to the surface of the grinding roller 8 can be scraped off by the scraper 23, thereby preventing the 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, so the scraped impurities will automatically fall downward, preventing the impurities from entering the gap between the scraper 23 and the surface of the grinding roller 8, and ensuring 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, and the two ends of the bellows 26 are fixedly connected to the slider 5 and the bracket 2 respectively, thereby preventing foreign impurities from accumulating on the top wall of the slider 5 and entering the connection between the slider 5 and the threaded rod 3, thereby ensuring that the threaded rod 3 can drive the slider 5 to move normally.

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

[0043] Usage: First, move the gantry 1 to the designated position so that the grinding roller 8 fits tightly against the surface of the filter cloth.

[0044] Then start the stepper motor 4, which drives the threaded rod 3 to rotate forward, so that the slider 5 moves to the bottom end of the threaded rod 3, and then the stepper motor 4 drives the threaded rod 3 to rotate reversely, so that the slider 5 moves up along the threaded rod 3 and resets.

[0045] As the slider 5 moves up and down along the threaded rod 3, the gear 13 cooperates with the tooth groove 12 to drive the rotating rod 7 to rotate, thereby driving the grinding roller 8 to roll on the filter plate surface 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 filter plate surface, thereby crushing dry solid impurities adhering to the filter cloth surface and in the filter cloth holes 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] At the same time, when the grinding roller 8 rolls 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. The space draws air from the surface of the filter cloth through the through-hole, so that the crushed granular impurities in the holes 25 on the surface of the filter cloth are attracted and the impurities are sucked out, reducing the impurity content in the holes 25 of the filter cloth, thereby preventing the crushed impurities from being stuck in the holes 25 of the filter cloth, and reducing the difficulty of cleaning the material.

[0047] When the slider 5 moves up to the maximum again, the stepper motor 4 stops working. At this time, the water supply mechanism supplies water to the horizontal pipe 10, and the horizontal pipe 10 discharges water through the drainage hole 11. The water flows downward along the surface of the filter cloth, so that the crushed impurities in the holes 25 on the surface of the filter cloth can be immersed in the water flow, and the impurities flow downward along the water flow until they are out of contact with the filter cloth.

[0048] Therefore, through the mutual cooperation between the grinding roller 8 and the anti-wear mechanism, after the solid matter is crushed, some of the crushed granular impurities in the holes 25 on the surface of the filter cloth are sucked out by the negative pressure mechanism, thereby preventing the remaining granular impurities from being stuck in the holes 25 on the surface of the filter cloth. Then the water flows into the holes 25 on the surface of the filter cloth, and the granular impurities remaining in the holes 25 are driven by the water flow to flow together. 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 is reduced.

[0049] The above are only preferred embodiments of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A plate filter press cleaning device, comprising a gantry (1); Its characteristics are: A bracket (2) is fixedly mounted on the side wall of the gantry (1), a threaded rod (3) is vertically rotatably inserted into the bracket (2), a stepping motor (4) whose output end is fixedly connected to the rotating shaft of the threaded rod (3) is fixedly mounted on the bracket (2), and a slider (5) is threadedly mounted on the threaded rod (3); A rotating rod (7) is inserted horizontally and rotatably on the side wall of the slider (5), a grinding roller (8) is fixedly mounted on the end of the rotating rod (7), and an anti-wear mechanism cooperating with the grinding roller (8) is provided on the gantry (1); A protective cover (9) is fixedly mounted 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 opening for cooperating 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) for making the space between the outer wall of the grinding roller (8) and the inner wall of the protective cover (9) in a negative pressure state; A transverse tube (10) is fixedly mounted horizontally on the bottom wall of the slider (5), the transverse tube (10) is located below the grinding roller (8), a drainage hole (11) is provided on the side wall of the transverse tube (10), and a water supply mechanism for supplying water to the transverse tube (10) is provided on the gantry (1).

2. A plate filter press cleaning device according to claim 1, characterized in that: The anti-wear mechanism comprises tooth grooves (12) uniformly arranged on the front wall of the gantry (1), and a gear (13) meshing with the tooth grooves (12) is fixedly sleeved on the rotating rod (7).

3. The plate filter press cleaning device according to claim 2, characterized in that: The negative pressure mechanism comprises a mounting tube (14) rotatably inserted on the side wall of the protective cover (9) away from the rotating rod (7), a turbine (15) is fixedly installed inside the mounting tube (14), the turbine (15) is located at the end of the mounting tube (14) away from the grinding roller (8), air inlet holes (16) are evenly opened on the side wall of the mounting tube (14), the air inlet holes (16) are located between the turbine (15) and the grinding roller (8), and the mounting tube (14) is fixedly connected to the end face of the grinding roller (8).

4. A plate filter press cleaning device according to claim 3, characterized in that: A flow guide cavity (24) is provided on the protective cover (9), and holes (25) communicating with the flow guide cavity (24) are evenly provided on the inner side wall of the protective cover (9); and the air inlet (16) is communicated with the flow guide cavity (24).

5. The plate filter press cleaning device according to claim 4, characterized in that: The water supply mechanism comprises a water tank (17) fixedly mounted on the bracket (2), a solenoid valve (18) fixedly mounted on the output end of the water tank (17), and an elastic tube (19) whose bottom end extends into the transverse tube (10) fixedly mounted on the output end of the solenoid valve (18).

6. The plate filter press cleaning device according to claim 5, characterized in that: A cavity (20) is formed on the grinding roller (8), and cross bars (21) parallel to the grinding roller (8) are evenly mounted on the side walls of the cavity (20). The cross bars (21) are evenly distributed around the circumference, and balls (22) are mounted in the cavity (20).

7. A plate filter press cleaning device according to claim 6, characterized in that: A scraper (23) is fixedly mounted on the inner side wall of the protective cover (9), and the scraper (23) is in contact with the side wall of the grinding roller (8).

8. The plate filter press cleaning device according to claim 7, characterized in that: The scraper (23) is vertically fixedly mounted on the inner bottom wall of the protective cover (9).

9. A plate filter press cleaning device according to claim 8, characterized in that: The scraper (23) and the ball (22) are both made of magnetic material, and the scraper (23) and the ball (22) attract each other.

10. The plate filter press cleaning device according to claim 1, characterized in that: A bellows (26) is fixedly mounted on the top wall of the slider (5), and both ends of the bellows (26) are fixedly connected to the slider (5) and the bracket (2), respectively.

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