A vacuum belt dehydrator scraper adjustment device

Abstract

The present invention discloses an adjustment device for a vacuum belt dehydrator scraper, which belongs to the field of vacuum belt dehydrators, and comprises a side plate, wherein a passive shaft is rotatably connected to the inner side of the side plate, a conveying roller is fixedly connected to the outer surface of the passive shaft, a filter cloth is rotatably connected to the outer surface of the conveying roller, a support plate is fixedly connected to the outer surface of the front end of the side plate, and an adjustment component is arranged inside the support plate, wherein the adjustment component comprises a support part and an adjustment part, wherein the support part comprises a support rod rotatably connected to the side plate. By setting the adjustment component, the torque between the counterweight block and the support rod can be adjusted according to the thickness of the filter cake through flexible adjustment of the position of the counterweight block, so that the extrusion force between the scraper and the filter cloth can be kept within an appropriate range, thereby reducing the probability of excessive wear of the filter cloth by the scraper, and further effectively improving the working stability of the vacuum belt dehydrator.

Description

Technical Field

[0001] The invention relates to the field of vacuum belt dehydrators, and more particularly to an adjusting device for a scraper of a vacuum belt dehydrator. Background Art

[0002] As an effective solid-liquid separation equipment, vacuum belt dehydrator plays an important role in many industries. Its high efficiency and reliability make it an indispensable part of many industrial processes. During operation, the filter cake on the surface of the belt conveyor filter cloth needs to be scraped and cleaned by a scraper to improve the filter cake conveying effect.

[0003] In the actual working process, the position of the scraper directly affects the scraping and cleaning quality of the filter cake on the surface of the filter cloth. In order to achieve a better scraping effect, the scraper position of the vacuum belt dehydrator needs to be flexibly adjusted. Therefore, a scraper adjustment device needs to be provided to improve the convenience of scraper adjustment. For example, a Chinese patent with a publication number of CN216170502U discloses a scraper assembly of a vacuum belt dehydrator, which can use the elasticity of a spring to keep the scraper in contact with the surface of the filter cloth, thereby ensuring the effectiveness of scraping;

[0004] When the existing scraper adjustment device is working, although the gap between the scraper and the filter cloth can be adjusted according to the spring force, the elastic coefficient of the spring is constant. When the thickness of the filter cake on the surface of the filter cloth changes, the resistance encountered by the scraper when scraping the filter cake will also change accordingly. Due to the limitation of the elastic coefficient of the spring, when the thickness of the filter cake on the surface of the filter cloth is too thick or too thin, the flipping amplitude of the scraper under the elastic force of the spring cannot match the thickness of the filter cake in time, which will lead to the problem of incomplete removal of the filter cake on the surface of the filter cloth, and further cause more filter cake to remain on the surface of the filter cloth, which will affect the filter cake conveying effect of the vacuum belt dehydrator. At the same time, a certain amount of filter cake will adhere to the surface of the scraper when it is working, and the filter cake will increase the dead weight of the scraper, thereby affecting the flexibility of the scraper position adjustment. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide an adjustment device for the scraper of a vacuum belt dewatering machine, which can be realized by setting an adjustment component and flexibly adjusting the position of the counterweight block. The torque between the counterweight block and the support rod can be adjusted according to the thickness of the filter cake, so that the extrusion pressure between the scraper and the filter cloth can be maintained within an appropriate range, thereby reducing the probability of excessive wear of the filter cloth by the scraper, and further effectively improving the working stability of the vacuum belt dewatering machine.

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

[0007] A vacuum belt dehydrator scraper adjustment device comprises a side plate, a passive shaft is rotatably connected to the inner side of the side plate, a conveying roller is fixedly connected to the outer surface of the passive shaft, a filter cloth is rotatably connected to the outer surface of the conveying roller, a support plate is fixedly connected to the outer surface of the front end of the side plate, and an adjustment component is arranged inside the support plate;

[0008] The adjustment assembly includes a support part and an adjustment part, the support part includes a support rod rotatably connected to the side plate, a scraper is fixedly connected to the outer surface of the support rod, the scraper is in sliding contact with the outer surface of the filter cloth, and the support part is used to scrape and clean the surface of the filter cloth;

[0009] The adjusting part includes a connecting plate fixedly connected to the outer surface of the support rod, the outer surface of the connecting plate is fixedly connected to a first limit plate, the outer surface of the lower end of the first limit plate is rotatably connected to a screw rod, and the outer surface of the screw rod is helically connected to a counterweight block.

[0010] Furthermore, the side panels are in two groups and are symmetrically distributed, a feeding assembly is arranged between the two groups of side panels, the feeding assembly includes a driving shaft rotatably connected to the side panel, a conveying roller is fixedly connected to the outer surface of the driving shaft, a motor is fixedly connected to the outer surface of the left end of the side panel, the right end of the motor output shaft is fixedly connected to the driving shaft, the driving shaft and the driven shaft are distributed in parallel, and a feeding device is arranged on the upper side of the side panel.

[0011] Furthermore, a second limit plate is fixedly connected to the outer surface of the connecting plate, the second limit plate is located directly below the first limit plate, the screw rod penetrates to the lower side of the second limit plate, a knob is fixedly connected to the lower end of the screw rod, and the scraper is made of elastic nylon material.

[0012] Furthermore, a separation component is provided on the lower side of the side plate, and the separation component includes a dehydration part and a contact part. The dehydration part includes a connecting frame fixedly connected to the lower end of the side plate, and a support plate is fixedly connected to the outer surface of the lower end of the connecting frame. The number of the support plates is two groups and they are distributed in parallel. A water collecting box is provided on the upper side of the support plate, and the upper end of the water collecting box is open. The water collecting box is located directly below the filter cloth, and the outer surface of the lower end of the water collecting box is fixedly connected to a drainage pipe. The number of the drainage pipes is two groups and they are distributed in parallel.

[0013] Furthermore, the contact part includes a brush that is in close contact with the outer surface of the filter cloth, the front end outer surface of the water collecting tank is fixedly connected to a support seat, a cavity is embedded in the inner side of the support seat, the upper end of the cavity passes through the upper side of the support seat, and a movable plate is slidably connected to the inner wall of the cavity.

[0014] Furthermore, a pad is fixedly connected to the outer surface of the upper end of the movable plate, the outer surface of the upper end of the pad is fixedly connected to the brush, the outer surface of the lower end of the movable plate is fixedly connected to a spring, and the lower end of the spring is fixedly connected to the lower part of the inner wall of the cavity.

[0015] Furthermore, an extrusion assembly is arranged between the two groups of side plates, and the extrusion assembly includes a rotating shaft rotatably connected to the side plate, a first contact plate is fixedly connected to the outer surface of the passive shaft, and a second contact plate is symmetrically fixedly connected to the outer surface of the rotating shaft, and the first contact plate is in sliding contact with the second contact plate.

[0016] Furthermore, a movable seat is fixedly connected to the outer surface of the rotating shaft, a slide groove is embedded in the inner side of the movable seat, the slide groove runs through the upper and lower ends of the movable seat, a baffle is fixedly connected to the inner surface of the slide groove, an elastic plate is fixedly connected to the outer surface of the baffle, the elastic plate is in an arc shape, a top plate is fixedly connected to the end of the elastic plate away from the baffle, the top plate is slidably connected to the inner surface of the slide groove, the end of the top plate away from the elastic plate is in an arc shape, and the top plate is in sliding contact with the outer surface of the scraper.

[0017] Furthermore, a scraper assembly is provided on the outer surface of the scraper, and the scraper assembly includes a scraper plate slidably connected to the outer surface of the scraper, an ear seat is fixedly connected to the outer surface of the scraper plate, and a pin is fixedly connected to the outer surface of the ear seat, and the ear seats are in two groups and are symmetrically distributed.

[0018] Furthermore, a spiral strip is fixedly connected to the outer surface of the rotating shaft, a spiral seat is rotatably connected to the outer surface of the pin shaft, the rotating shaft is spirally connected to the spiral seat via the spiral strip, and the scraper plate is made of rubber material.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] (1) This solution provides an adjustment component and flexibly adjusts the position of the counterweight block to adjust the torque between the counterweight block and the support rod according to the thickness of the filter cake, so that the extrusion force between the scraper and the filter cloth can be maintained within an appropriate range, thereby reducing the probability of excessive wear of the scraper on the filter cloth, thereby effectively improving the working stability of the vacuum belt dehydrator;

[0021] (2) This solution provides a scraper assembly, and uses a scraper plate to scrape and clean the filter cake remaining on the scraper surface, thereby greatly reducing the filter cake remaining on the scraper surface, and effectively reducing the influence of the filter cake on the scraper surface on the weight of the scraper, thereby reducing the influence of the change in the scraper gravity on the scraper position adjustment accuracy, and further improving the scraper's scraping effect on the filter cake on the filter cloth surface;

[0022] (3) This solution provides a separation component and maintains appropriate tension between the plate brush and the filter cloth, thereby improving the cleaning effect of the filter cloth surface and reducing the probability of excessive wear of the filter cloth by the plate brush, thereby extending the service life of the dewatering belt conveyor to a certain extent. At the same time, scraping and cleaning the filter cloth by the plate brush can reduce the probability of the mesh on the filter cloth surface being blocked by solid filter cake, thereby extending the working time of the filter cloth to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 3 It is a top view of the overall structure of the present invention;

[0026] Figure 4 For the present invention Figure 3 Middle AA section view;

[0027] Figure 5 For the present invention Figure 3 Middle BB section view;

[0028] Figure 6 It is a schematic diagram of the structure of the extrusion assembly of the present invention;

[0029] Figure 7 For the present invention Figure 2 The enlarged schematic diagram at C in the middle;

[0030] Figure 8 For the present invention Figure 4 The enlarged schematic diagram at D in the middle;

[0031] Fig. 9 For the present invention Figure 4 The enlarged schematic diagram at E in the middle;

[0032] Fig.10 For the present invention Figure 5 Enlarged schematic diagram at F in the middle.

[0033] Description of the numbers in the figure:

[0034] Feeding assembly; 11, side plate; 12, support plate; 13, feeding device; 14, filter cloth; 15, motor; 16, driving shaft; 17, conveying roller; 18, driven shaft;

[0035] Separation assembly; 21, connecting frame; 22, supporting plate; 23, drainage pipe; 24, water collecting tank; 25, supporting seat; 26, spring; 261, cavity; 27, movable plate; 28, pad; 29, brush;

[0036] Adjustment assembly; 31, first limit plate; 32, screw; 33, counterweight; 34, second limit plate; 35, knob; 36, support rod; 37, scraper; 38, connecting plate;

[0037] Extrusion assembly; 41, first contact plate; 42, rotating shaft; 43, second contact plate; 44, movable seat; 45, slide groove; 46, top plate; 47, baffle plate; 48, elastic plate;

[0038] Scraper assembly; 51, scraper plate; 52, spiral seat; 53, spiral strip; 54, ear seat; 55, pin shaft. DETAILED DESCRIPTION

[0039] 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, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0040] See also Figures 1 to 10 , an adjustment device for a vacuum belt dehydrator scraper, comprising a side plate 11, a passive shaft 18 is rotatably connected to the inner side of the side plate 11, a conveying roller 17 is fixedly connected to the outer surface of the passive shaft 18, a filter cloth 14 is rotatably connected to the outer surface of the conveying roller 17, a support plate 12 is fixedly connected to the outer surface of the front end of the side plate 11, and an adjustment component is arranged inside the support plate 12;

[0041] The adjustment assembly includes a support portion and an adjustment portion. The support portion includes a support rod 36 rotatably connected to the side plate 11. A scraper 37 is fixedly connected to the outer surface of the support rod 36. The scraper 37 is in sliding contact with the outer surface of the filter cloth 14. The support portion is used to scrape and clean the surface of the filter cloth 14.

[0042] The adjusting part includes a connecting plate 38 fixedly connected to the outer surface of the support rod 36, the outer surface of the connecting plate 38 is fixedly connected to the first limit plate 31, the outer surface of the lower end of the first limit plate 31 is rotatably connected to the screw rod 32, and the outer surface of the screw rod 32 is spirally connected to the counterweight block 33.

[0043] By adopting the above technical solution, when the vacuum belt dehydrator is working, the filter cloth 14 is driven to move by the rotation of the conveying roller 17, so that the filter cake on the surface of the filter cloth 14 is conveyed by the circular rotation of the filter cloth 14. During the filter cake conveying process, the scraper 37 will continuously fit in contact with the surface of the filter cloth 14, so that the filter cake attached to the surface of the filter cloth 14 is scraped and cleaned by the scraper 37. When the thickness of the filter cake on the surface of the filter cloth 14 changes, the resistance encountered by the scraper 37 when scraping the filter cake will also change accordingly. In order to keep the scraper 37 in close contact with the filter cloth 14, the scraper 37 is reduced. 7 and the filter cloth 14, an adjustment component is provided, the support rod 36 fixedly supports the scraper 37 and the connecting plate 38, the side plate 11 rotatably supports the support rod 36 so that the support rod 36 can rotate to a certain extent, the scraper 37 and the connecting plate 38 fixedly connected to the surface of the support rod 36 will rotate with the support rod 36 as a fulcrum, and the support rod 36 can maintain a relatively stable state under the gravity of the counterweight block 33, so that the scraper 37 can maintain a close fit with the surface of the filter cloth 14, so as to continuously scrape and separate the filter cake on the surface of the filter cloth 14.

[0044] like Figure 1 and Fig. 9 As shown, the outer surface of the connecting plate 38 is fixedly connected to a second limit plate 34, the second limit plate 34 is located directly below the first limit plate 31, the screw rod 32 penetrates to the lower side of the second limit plate 34, the lower end of the screw rod 32 is fixedly connected to a knob 35, and the scraper 37 is made of elastic nylon material.

[0045] By adopting the above technical solution, when the thickness of the filter cake on the surface of the filter cloth 14 changes, it is necessary to synchronously adjust the extrusion force between the scraper 37 and the filter cloth 14. At this time, the operator rotates the screw 32 through the knob 35, and the counterweight block 33 is connected to the screw 32 through the spiral transmission connection. As the screw 32 rotates, it will move toward the second limit plate 34. The first limit plate 31 can support the rotation of the screw 32. When the counterweight block 33 moves toward the second limit plate 34, the force arm between the counterweight block 33 and the support rod 36 will increase. The gravity of the counterweight block 33 remains unchanged, that is, the torque remains constant. When the force arm increases, the extrusion force between the scraper 37 on the opposite side of the connecting plate 38 and the filter cloth 14 The scraper 37 will also increase accordingly, thereby maintaining a close fit with the surface of the filter cloth 14, so that the scraper 37 can effectively scrape and clean the filter cake on the surface of the filter cloth 14, thereby reducing the probability of a gap between the scraper 37 and the filter cloth 14, and further improving the scraping effect of the scraper 37. By flexibly adjusting the position of the counterweight block 33, the torque between the counterweight block 33 and the support rod 36 can be adjusted according to the thickness of the filter cake, so that the extrusion force between the scraper 37 and the filter cloth 14 can be maintained within an appropriate range, thereby reducing the probability of excessive wear of the filter cloth 14 by the scraper 37, and effectively improving the working stability of the vacuum belt dehydrator.

[0046] like Figure 1 , Figure 2 and Figure 4 As shown, there are two groups of side plates 11 and they are symmetrically distributed, a feeding assembly is arranged between the two groups of side plates 11, the feeding assembly includes a driving shaft 16 rotatably connected to the side plate 11, a conveying roller 17 is fixedly connected to the outer surface of the driving shaft 16, a motor 15 is fixedly connected to the outer surface of the left end of the side plate 11, the right end of the output shaft of the motor 15 is fixedly connected to the driving shaft 16, the driving shaft 16 and the driven shaft 18 are distributed in parallel, and a feeding device 13 is arranged on the upper side of the side plate 11.

[0047] By adopting the above technical scheme, when the vacuum belt conveyor is working, the motor 15 is started and operated, and the output shaft of the motor 15 drives the driving shaft 16 to rotate synchronously, thereby driving the conveying roller 17 on its surface to rotate synchronously through the driving shaft 16, and the conveying roller 17 on the surface of the driving shaft 16 and the driven shaft 18 rotate synchronously to convey the filter cloth 14. During the movement of the filter cloth 14, the driven shaft 18 is driven to rotate synchronously through another set of conveying rollers 17, and the feeding device 13 adds the filter cake evenly on the surface of the filter cloth 14. During the operation of the filter cloth 14, the solid filter cake will remain on the surface of the filter cloth 14 and the water in the filter cake will seep out from the surface of the filter cloth 14. During the conveying process of the filter cake, the filter cake is dehydrated synchronously. The upper edge height of the side plate 11 is higher than the upper surface of the filter cloth 14, so that the filter cake on the surface of the filter cloth 14 can be blocked, thereby effectively reducing the probability of leakage during the conveying process of the filter cloth, and improving the conveying quality of the filter cake of the dehydration belt conveyor.

[0048] like Figure 4 , Figure 5 and Figure 8 As shown, a separation component is provided on the lower side of the side plate 11, and the separation component includes a dehydration part and a contact part. The dehydration part includes a connecting frame 21 fixedly connected to the lower end of the side plate 11, and a support plate 22 is fixedly connected to the outer surface of the lower end of the connecting frame 21. The number of the support plates 22 is two groups and they are distributed in parallel. A water collecting box 24 is provided on the upper side of the support plate 22. The upper end of the water collecting box 24 is open. The water collecting box 24 is located directly below the filter cloth 14. A drainage pipe 23 is fixedly connected to the outer surface of the lower end of the water collecting box 24. The number of the drainage pipe 23 is two groups and they are distributed in parallel.

[0049] The contact portion includes a brush 29 that is in contact with the outer surface of the filter cloth 14. The front end outer surface of the water collecting box 24 is fixedly connected to a support seat 25. A cavity 261 is embedded inside the support seat 25. The upper end of the cavity 261 passes through the upper side of the support seat 25. The inner wall of the cavity 261 is slidably connected to a movable plate 27.

[0050] The outer surface of the upper end of the movable plate 27 is fixedly connected with a pad 28, and the outer surface of the upper end of the pad 28 is fixedly connected to the brush 29. The outer surface of the lower end of the movable plate 27 is fixedly connected with a spring 26, and the lower end of the spring 26 is fixedly connected to the lower inner wall of the cavity 261.

[0051] By adopting the above technical scheme, when the vacuum belt dehydrator conveys the filter cake, the vacuum belt dehydrator is fixedly connected through the connecting frame 21, and the water in the filter cake will penetrate downward through the filter cloth 14, and the water will drip downward to the inside of the water collecting box 24 under the action of gravity, while the filter cake will remain on the surface of the filter cloth 14 and continue to be conveyed. The side plate 11 fixes and supports the water collecting box 24 through the supporting plate 22, and the water is collected inside the water collecting box 24 and then discharged through the drain pipe 23, thereby realizing the rapid separation and processing of the water in the filter cake. When working, the water collecting box 24 fixes and supports the support seat 25, and during the operation of the filter cloth 14, the plate brush 29 will be in contact with the lower surface of the filter cloth 14, and the surface of the filter cloth 14 will be scraped and cleaned twice by the plate brush 29, so as to completely remove the filter cake on the surface of the filter cloth 14. In order to reduce the probability of filter cake adhering to the surface of the filter cloth 14, the pad 28 provides fixed support for the plate brush 29, and the cavity 261 arranged on the inner side of the support seat 25 is slidably connected with a movable plate 27. Under the elastic force of the spring 26 on the lower side, the movable plate 27 will drive the plate brush 29 to keep close contact with the surface of the filter cloth 14 through the pad 28, so that the plate brush 29 and the filter cloth 14 can maintain appropriate tension, thereby improving the cleaning effect of the surface of the filter cloth 14, and at the same time, it can also reduce the probability of excessive wear of the filter cloth 14 by the plate brush 29, thereby extending the service life of the dehydration belt conveyor to a certain extent. At the same time, scraping and cleaning the filter cloth 14 by the plate brush 29 can reduce the probability of the mesh on the surface of the filter cloth 14 being blocked by solid filter cake, thereby extending the working time of the filter cloth 14 to a certain extent.

[0052] like Figure 4 , Figure 6 , Figure 7 and Fig.10 As shown, an extrusion assembly is arranged between the two groups of side plates 11, and the extrusion assembly includes a rotating shaft 42 rotatably connected to the side plate 11, a first contact plate 41 is fixedly connected to the outer surface of the passive shaft 18, and a second contact plate 43 is symmetrically fixedly connected to the outer surface of the rotating shaft 42, and the first contact plate 41 is in sliding contact with the second contact plate 43.

[0053] The outer surface of the rotating shaft 42 is fixedly connected to a movable seat 44, and a slide groove 45 is embedded in the inner side of the movable seat 44. The slide groove 45 runs through the upper and lower ends of the movable seat 44, and the inner surface of the slide groove 45 is fixedly connected to a baffle 47, and the outer surface of the baffle 47 is fixedly connected to an elastic plate 48, and the elastic plate 48 is in an arc shape. The end of the elastic plate 48 away from the baffle 47 is fixedly connected to a top plate 46, and the top plate 46 is slidably connected to the inner surface of the slide groove 45, and the end of the top plate 46 away from the elastic plate 48 is in an arc shape, and the top plate 46 is in sliding contact with the outer surface of the scraper 37.

[0054] By adopting the above technical solution, during operation, the passive shaft 18 rotates with the movement of the filter cloth 14. During the rotation of the passive shaft 18, the first contact plate 41 will be driven to rotate synchronously. When the first contact plate 41 rotates to the front side, it will contact the surface of the second contact plate 43. The second contact plate 43 will drive the rotating shaft 42 to rotate under the pressing action of the first contact plate 41. The rotating shaft 42 drives the movable seat 44 to rotate synchronously during the rotation process. The movable seat 44 will drive the top plates 46 at both ends to rotate synchronously during the rotation process. The surface of the scraper 37 is pressed by the rotational contact between the top plate 46 and the surface of the scraper 37. When the top plate 46 contacts the surface of the scraper 37, the top plate 46 will move along the inner side of the movable seat 44 under the resistance of the scraper 37. The top plate 46 slides and the elastic plate 48 is squeezed in the process of sliding toward the side of the baffle plate 47. The baffle plate 47 on the inner side of the slide groove 45 can fix and support the two groups of elastic plates 48. The top plate 46 will keep close contact with the surface of the scraper 37 under the elastic force of the elastic plate 48, so that the contact force between the scraper 37 and the surface of the filter cloth 14 is maintained within an appropriate range. By setting an extrusion component, the two groups of top plates 46 can intermittently press and contact with the surface of the scraper 37. The top plate 46 can block and limit the scraper 37, preventing the scraper 37 from excessively turning away from the filter cloth 14. Not only can the gap between the scraper 37 and the filter cloth 14 be effectively controlled, but also the cleaning and scraping effect of the scraper 37 can be further improved.

[0055] like Figure 3 , Figure 4 and Figure 7 As shown, the outer surface of the scraper 37 is provided with a scraper assembly, and the scraper assembly includes a scraper plate 51 slidably connected to the outer surface of the scraper 37, the outer surface of the scraper plate 51 is fixedly connected to an ear seat 54, the outer surface of the ear seat 54 is fixedly connected to a pin shaft 55, and the ear seats 54 are in two groups and are symmetrically distributed.

[0056] The outer surface of the rotating shaft 42 is fixedly connected with a spiral strip 53, the outer surface of the pin shaft 55 is rotatably connected with a spiral seat 52, the rotating shaft 42 is spirally connected with the spiral seat 52 through the spiral strip 53, and the scraper plate 51 is made of rubber material.

[0057] By adopting the above technical solution, the driven shaft 18 drives the rotating shaft 42 to rotate synchronously through the first contact plate 41 and the second contact plate 43, and the spiral seat 52 is connected to the rotating shaft 42 through the spiral strip 53 on the surface of the rotating shaft 42. As the rotating shaft 42 rotates, the spiral seat 52 can move along the surface of the rotating shaft 42. During the movement, the spiral seat 52 drives the scraper plate 51 to move synchronously through the pin shaft 55 and the ear seat 54. The scraper plate 51 can slide along the surface of the scraper 37, so that the scraper plate 51 can scrape and clean the filter cake remaining on the surface of the scraper 37, thereby greatly reducing the scraper 37. 7, the filter cake residue on the surface of the scraper 37 can effectively reduce the influence of the filter cake on the surface of the scraper 37 on the weight of the scraper 37, thereby reducing the influence of the gravity change of the scraper 37 on the position adjustment accuracy of the scraper 37, and further improving the scraping effect of the scraper 37 on the filter cake on the surface of the filter cloth 14. When the scraper 37 swings to a certain extent, the scraper plate 51 can be rotatably connected to the spiral seat 52 through the ear seat 54 and the pin shaft 55, so that the scraper plate 51 can be synchronously turned over with the change of the angle of the scraper 37, so that the scraper plate 51 and the surface of the scraper 37 can always maintain a close fit, thereby improving the cleaning effect on the surface of the scraper 37.

[0058] Instructions for use: When the vacuum belt dehydrator is working, the feeding device 13 adds the filter cake evenly to the surface of the filter cloth 14, and the conveying roller 17 on the surface of the active shaft 16 and the passive shaft 18 drives the filter cloth 14 to move, and the water in the filter cake will penetrate downward through the filter cloth 14, and the water will drip downward to the inside of the water collecting box 24 under the action of gravity, while the filter cake will remain on the surface of the filter cloth 14 and continue to be conveyed. During the filter cake conveying process, the scraper 37 will continue to fit in contact with the surface of the filter cloth 14, so that the filter cake attached to the surface of the filter cloth 14 is scraped and cleaned by the scraper 37. During the operation of the filter cloth 14, the plate brush 29 will fit in contact with the lower surface of the filter cloth 14, and the surface of the filter cloth 14 is scraped and cleaned twice by the plate brush 29, so as to completely remove the filter cake on the surface of the filter cloth 14 and reduce the probability of filter cake adhesion on the surface of the filter cloth 14. When the filter cake thickness on the surface of the filter cloth 14 changes, the filter cloth 14 is equipped with a plurality of rollers 29 to remove the filter cake from the surface of the filter cloth 14. The weight block 33 is connected to the screw rod 32 through a spiral transmission connection, and as the screw rod 32 rotates, it will move toward the side of the second limit plate 34. When the counterweight block 33 moves toward the side of the second limit plate 34, the force arm between the counterweight block 33 and the support rod 36 will increase. At this time, the extrusion force between the scraper 37 and the filter cloth 14 on the opposite side of the connecting plate 38 will also increase accordingly, so that the scraper 37 and the surface of the filter cloth 14 are kept in close contact, and the top plate 46 will be kept in close contact with the surface of the scraper 37 under the elastic force of the elastic plate 48, so that the contact force between the scraper 37 and the surface of the filter cloth 14 is maintained within an appropriate range, and the material plate can slide along the surface of the scraper 37, so that the filter cake remaining on the surface of the scraper 37 can be scraped and cleaned by the scraper plate 51, thereby greatly reducing the filter cake residue on the surface of the scraper 37, and further improving the scraping effect of the scraper 37 on the filter cake on the surface of the filter cloth 14.

[0059] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustment device for a scraper of a vacuum belt dehydrator, comprising a side plate (11), the inner side of the side plate (11) being rotatably connected to a passive shaft (18), the outer surface of the passive shaft (18) being fixedly connected to a conveying roller (17), the outer surface of the conveying roller (17) being rotatably connected to a filter cloth (14), and the outer surface of the front end of the side plate (11) being fixedly connected to a support plate (12). Features: An adjustment component is arranged on the inner side of the support plate (12); The adjustment assembly comprises a support portion and an adjustment portion, the support portion comprising a support rod (36) rotatably connected to the side plate (11), a scraper (37) being fixedly connected to the outer surface of the support rod (36), the scraper (37) being in sliding contact with the outer surface of the filter cloth (14), and the support portion being used to scrape and clean the surface of the filter cloth (14); The adjusting portion comprises a connecting plate (38) fixedly connected to the outer surface of the support rod (36); the outer surface of the connecting plate (38) is fixedly connected to a first limit plate (31); the outer surface of the lower end of the first limit plate (31) is rotatably connected to a screw rod (32); the outer surface of the screw rod (32) is helically connected to a counterweight block (33); An extrusion assembly is provided between the two groups of side plates (11), the extrusion assembly comprising a rotating shaft (42) rotatably connected to the side plate (11), a first contact plate (41) being fixedly connected to the outer surface of the passive shaft (18), a second contact plate (43) being symmetrically fixedly connected to the outer surface of the rotating shaft (42), and the first contact plate (41) and the second contact plate (43) being in sliding contact; The outer surface of the rotating shaft (42) is fixedly connected to a movable seat (44), the inner side of the movable seat (44) is embedded with a slide groove (45), the slide groove (45) runs through the upper and lower ends of the movable seat (44), the inner surface of the slide groove (45) is fixedly connected to a baffle (47), the outer surface of the baffle (47) is fixedly connected to an elastic plate (48), the elastic plate (48) is in an arc shape, the end of the elastic plate (48) away from the baffle (47) is fixedly connected to a top plate (46), the top plate (46) is slidably connected to the inner surface of the slide groove (45), the end of the top plate (46) away from the elastic plate (48) is in an arc shape, and the top plate (46) is in sliding contact with the outer surface of the scraper (37); The outer surface of the scraper (37) is provided with a scraper assembly, the scraper assembly comprising a scraper plate (51) slidably connected to the outer surface of the scraper (37), an ear seat (54) fixedly connected to the outer surface of the scraper plate (51), a pin shaft (55) fixedly connected to the outer surface of the ear seat (54), and the ear seats (54) are provided in two groups and are symmetrically distributed; The outer surface of the rotating shaft (42) is fixedly connected with a spiral strip (53), the outer surface of the pin shaft (55) is rotatably connected with a spiral seat (52), the rotating shaft (42) is spirally connected to the spiral seat (52) via the spiral strip (53), and the scraper plate (51) is made of rubber material.

2. The vacuum belt dehydrator scraper adjustment device according to claim 1, Features: The number of the side plates (11) is two and they are symmetrically distributed. A feeding assembly is arranged between the two groups of the side plates (11). The feeding assembly comprises a driving shaft (16) rotatably connected to the side plates (11). A conveying roller (17) is fixedly connected to the outer surface of the driving shaft (16). A motor (15) is fixedly connected to the outer surface of the left end of the side plate (11). The right end of the output shaft of the motor (15) is fixedly connected to the driving shaft (16). The driving shaft (16) and the driven shaft (18) are distributed in parallel. A feeding device (13) is arranged on the upper side of the side plate (11).

3. The vacuum belt dehydrator scraper adjustment device according to claim 2, Features: The outer surface of the connecting plate (38) is fixedly connected to a second limit plate (34), the second limit plate (34) is located directly below the first limit plate (31), the screw rod (32) passes through the lower side of the second limit plate (34), the lower end of the screw rod (32) is fixedly connected to a knob (35), and the scraper (37) is made of elastic nylon material.

4. The vacuum belt dehydrator scraper adjustment device according to claim 3, Features: A separation component is provided at the lower side of the side plate (11), the separation component comprising a dehydration portion and a contact portion, the dehydration portion comprising a connection frame (21) fixedly connected to the lower end of the side plate (11), a support plate (22) is fixedly connected to the outer surface of the lower end of the connection frame (21), the number of the support plates (22) being two groups and being distributed in parallel, a water collecting box (24) is provided at the upper side of the support plate (22), the upper end of the water collecting box (24) being open, the water collecting box (24) being located directly below the filter cloth (14), the lower end of the water collecting box (24) being fixedly connected to the outer surface of a drainage pipe (23), the number of the drainage pipe (23) being two groups and being distributed in parallel.

5. The vacuum belt dehydrator scraper adjustment device according to claim 4, Features: The contact portion comprises a brush (29) which is in close contact with the outer surface of the filter cloth (14); the outer surface of the front end of the water collecting box (24) is fixedly connected to a support seat (25); a cavity (261) is embedded in the inner side of the support seat (25); the upper end of the cavity (261) passes through the upper side of the support seat (25); and a movable plate (27) is slidably connected to the inner wall of the cavity (261).

6. The vacuum belt dehydrator scraper adjustment device according to claim 5, Features: The outer surface of the upper end of the movable plate (27) is fixedly connected to a pad (28), and the outer surface of the upper end of the pad (28) is fixedly connected to a brush (29). The outer surface of the lower end of the movable plate (27) is fixedly connected to a spring (26), and the lower end of the spring (26) is fixedly connected to the lower part of the inner wall of the cavity (261).

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