An adjusting device for a scraper of a vacuum belt filter press

Abstract

The present invention relates to the field of separation facilities, and specifically to an adjusting device for a scraper of a vacuum belt filter press, which includes a filter press body. A knife rest is fixedly installed at the front end of the frame of the filter press body. A chain plate assembly is fixedly installed at the end of the knife rest. The chain plate assembly is connected to the belt drive shaft of the filter press body. A plurality of frame guide shells are evenly distributed and installed on the chain plates of the chain plate assembly. A plurality of cloth support frames are slidably installed through the interiors of the plurality of frame guide shells. The spacing between the plurality of cloth support frames matches the spacing between a plurality of transverse grooves on the rubber belt of the filter press body. The present invention ensures that the filter cake on the filter cloth is fully scraped off, effectively improves the scraping effect, and at the same time avoids the phenomenon that the retracted cloth support frame automatically extends and abuts against the frame of the filter press body, resulting in hindered movement of the chain plate assembly.

Description

Technical Field

[0001] The present invention relates to the field of separation facilities, and particularly to an adjusting device for a scraper of a vacuum belt filter press. Background Art

[0002] A vacuum belt filter press, also known as a fixed vacuum chamber rubber belt filter, is a new type, highly efficient and continuously operable solid-liquid separation mechanical equipment. When the vacuum belt filter press is working, the slurry is fed onto the filter cloth of the vacuum belt filter press, and the filter cloth is conveyed by a heavy rubber belt. Transverse grooves are formed on the rubber belt to facilitate the liquid to enter the vacuum groove through the transverse grooves. Under the action of vacuum, the filtrate and air are mixed in the vacuum groove and pumped to the vacuum filtrate collection pipe, and then enter the gas-liquid separator for steam-water separation. The separated filter cake adheres to the filter cloth and is scraped off by the subsequent annular scraper.

[0003] Among them, an adjusting device is usually equipped on the annular scraper, and the adjusting device can only adjust the friction force between the annular scraper and the filter cloth, so as to change the scraping force of the annular scraper on the filter cloth. However, due to the transverse grooves formed on the rubber belt, when the annular scraper presses the filter cloth against the rubber belt for scraping, when moving to the position of the transverse groove, the filter cloth loses support due to the existence of the transverse groove. At this time, a gap appears between the filter cloth and the annular scraper, and it is difficult for the two to be in close contact, resulting in the filter cake passing through the gap, so that the filter cake on the filter cloth is not completely scraped off, and the scraping effect is not good. Summary of the Invention

[0004] The purpose of the present invention is to solve the defects existing in the background art, and to propose an adjusting device for a scraper of a vacuum belt filter press.

[0005] To achieve the above object, the present invention provides the following technical solution: An adjusting device for a scraper of a vacuum belt dewatering machine, including a dewatering machine body. A knife rest is fixedly installed at the front end of the frame of the dewatering machine body. A chain plate assembly is fixedly installed at the end of the knife rest. The chain plate assembly is connected to the belt drive shaft of the dewatering machine body. A plurality of frame guide shells are evenly distributed and installed on the chain plates of the chain plate assembly. A plurality of cloth support frames are slidably installed through the interiors of the plurality of frame guide shells. The distance between the plurality of cloth support frames matches the distance between a plurality of transverse grooves on the rubber belt of the dewatering machine body. The front end of the cloth support frame is tapered. A push frame guide wheel is installed at the rear end of the cloth support frame. An insertion guide rail is connected to one side of the knife rest. A retraction guide rail is connected to the other side of the knife rest. The push frame guide wheels on the plurality of cloth support frames on the lower side are in contact with the outer side of the insertion guide rail. The push frame guide wheels on the plurality of cloth support frames on the other lower side are in contact with the inner side of the retraction guide rail. A fixed frame member is provided on the end face of the frame guide shell opposite to the chain plate assembly. The fixed frame member presses on the cloth support frame. A scraper member is provided at the upper end of the knife rest.

[0006] Preferably, reinforcing frames are fixedly installed obliquely on both sides of the end of the knife rest. The ends of the reinforcing frames are fixed to the chain plate assembly. Two first connecting columns are fixedly installed at the lower end of the insertion guide rail. A second fixed angle bracket is fixedly installed between the outer surfaces of the two first connecting columns. The second fixed angle bracket is fixed to the knife rest.

[0007] Preferably, a shell seat extends from the end face of the frame guide shell relative to the chain plate assembly. The end of the shell seat is fixed to the chain plate on the chain plate assembly. Two second connecting columns are fixedly installed at the lower end of the retraction guide rail. A first fixed angle bracket is fixedly installed between the outer surfaces of the two second connecting columns. The first fixed angle bracket is fixed to the knife rest.

[0008] Preferably, a shaft frame is fixedly installed near the edge at the rear end of the dewatering machine body. A transmission shaft is rotatably installed at the end of the shaft frame. One end of the sprocket shaft of the chain plate assembly and the outer surface of the transmission shaft are coaxially inlaid with first belt pulleys. A first synchronous belt is connected between the two first belt pulleys. The outer surface of the transmission shaft and the end of the belt drive shaft of the dewatering machine body are coaxially inlaid with second belt pulleys. A second synchronous belt is connected between the two second belt pulleys. The second belt pulley and the first belt pulley on the transmission shaft are arranged in a staggered manner.

[0009] Preferably, the fixed frame member includes a bearing cover fixedly installed on the end face of the frame guide shell opposite to the chain plate assembly. A pressing plate is elastically connected inside the bearing cover. The pressing plate passes through the outer surface of the frame guide shell and presses on the cloth support frame. The pressing plate is slidably matched with the frame guide shell.

[0010] Preferably, a limiting post is fixedly installed on the inner top surface of the bearing cover. A limiting sleeve is slidably installed on the outer surface of the limiting post. The end of the limiting sleeve is fixed to the pressing plate. A pressing spring is wound around the outer sides of the limiting post and the limiting sleeve. One end of the pressing spring is fixed to the pressing plate, and the other end of the pressing spring is fixed to the inner wall of the bearing cover.

[0011] Preferably, the scraping member includes two guiding posts slidably installed through the upper end of the tool rest. A tool holder is fixedly installed between the ends of the two guiding posts. An annular scraper is fixedly installed between the two ends of the tool holder. The annular scraper presses against the filter cloth of the dewatering machine body.

[0012] Preferably, an adjusting threaded rod is arranged between the two guiding posts. The adjusting threaded rod penetrates and is screwed tightly on the tool rest. A hand wheel is coaxially fixedly installed at the lower end of the adjusting threaded rod. An adjusting seat is rotatably installed at the upper end of the adjusting threaded rod. Pressing caps are inlaid at both ends of the adjusting seat. The pressing caps are slidably installed on the outer surface of the guiding post. A tightening spring is wound around the outer side of the guiding post. One end of the tightening spring is fixed to the pressing cap, and the other end of the tightening spring is fixed to the tool holder.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. When the rubber belt on the dewatering machine body drives the filter cloth to move, the annular scraper presses against the filter cloth to scrape off the filter cake on the filter cloth. During this process, the chain plate assembly is driven by the belt drive shaft on the dewatering machine body to move synchronously with the rubber belt. At this time, the chain plate assembly drives a plurality of cloth support frames to rotate in the same direction as the rubber belt. The push frame guide wheels on the cloth support frames turned to the lower part by the chain plate assembly will roll along the outer side of the insertion guide rail. Under the drive of the inclined surface of the insertion guide rail, the cloth support frame will gradually move forward during the movement to be inserted into the transverse groove on the rubber belt. Subsequently, the cloth support frame continues to move under the drive of the chain plate assembly. At this time, the push frame guide wheels on the cloth support frame move to the retraction guide rail and roll along the inner side of the retraction guide rail to gradually retract the cloth support frame inserted into the transverse groove. In this cycle, when the filter cloth at the transverse groove moves to the annular scraper, the filter cloth can be supported by the cloth support frame inserted into the transverse groove, so that the annular scraper and the filter cloth are in close contact to avoid gaps between the two, thereby ensuring that the filter cake on the filter cloth is fully scraped off and improving the scraping effect.

[0015] 2. When the cloth support frame is retracted, the pressing spring presses the pressing plate to press the pressing plate against the cloth support frame to fix the cloth support frame in real time, so that the cloth support frame will not shift by itself when there is no external force, so as to avoid the phenomenon that the cloth support frame automatically extends and abuts against the frame of the dewatering machine body when the chain plate assembly drives the retracted cloth support frame to move, resulting in the movement of the chain plate assembly being blocked. Description of the Drawings

[0016] Figure 1 is the overall structural schematic diagram of the present invention;

[0017] Figure 2 is the bottom view of the present invention;

[0018] Figure 3 is the partial view of the present invention;

[0019] Figure 4 is the Figure 3 enlarged view of A in the present invention;

[0020] Figure 5 is the insertion view of the cloth support of the present invention;

[0021] Figure 6 is the Figure 5 enlarged view of B in the present invention;

[0022] Figure 7 is the mating view of the cloth support, the retracting guide rail and the inserting guide rail of the present invention;

[0023] Figure 8 is the internal view of the bearing cover of the present invention.

[0024] In the drawings, the list of components represented by each reference numeral is as follows: 1, dehydrator body; 2, annular scraper; 3, tool rest; 4, adjusting seat; 5, retracting guide rail; 6, first fixed angle bracket; 7, second fixed angle bracket; 8, inserting guide rail; 9, reinforcing frame; 10, chain plate assembly; 11, first belt pulley; 12, first synchronous belt; 13, transmission shaft; 14, shaft bracket; 15, second belt pulley; 16, second synchronous belt; 17, cloth support; 18, housing base; 19, frame guide housing; 20, bearing cover; 21, limiting column; 22, limiting sleeve; 23, compression spring; 24, compression plate; 25, adjusting screw rod; 26, hand wheel; 27, guide column; 28, top spring; 29, tool holder; 30, push frame guide wheel; 31, compression cap; 32, first connecting column; 33, second connecting column; 34, rubber belt; 35, filter cloth; 36, transverse groove. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] The present invention provides a technical solution: as Figures 1-8An adjusting device for a scraper of a vacuum belt dewatering machine as shown includes a dewatering machine body 1. A knife rest 3 is fixedly installed at the front end of the frame of the dewatering machine body 1. A chain plate assembly 10 is fixedly installed at the end of the knife rest 3. The chain plate assembly 10 uses a sprocket to rotate to drive the movement of the chain, thereby driving the chain plates on the chain to move. Since the above movement method is a prior art and has been widely used, it is not elaborated in detail here. The chain plate assembly 10 is connected to the belt drive shaft of the dewatering machine body 1. A plurality of frame guide shells 19 are evenly distributed and installed on the chain plates of the chain plate assembly 10. A plurality of cloth support frames 17 are slidably installed through the interiors of the plurality of frame guide shells 19. The frame guide shells 19 play a role in guiding the cloth support frames 17. The distance between the plurality of cloth support frames 17 matches the distance between a plurality of transverse grooves 36 on the rubber belt 34 of the dewatering machine body 1, which can ensure that when the chain plate assembly 10 drives the cloth support frames 17 to move, the plurality of cloth support frames 17 can be smoothly inserted into the plurality of transverse grooves 36. The front end of the cloth support frame 17 is arranged in a conical shape, which is beneficial for the cloth support frame 17 to be inserted into the transverse groove 36. A push frame guide wheel 30 is installed at the rear end of the cloth support frame 17, and the push frame guide wheel 30 plays a role in reducing wear. One side of the knife rest 3 is connected with an insertion guide rail 8, and the push frame guide wheel 30 rolls on the insertion guide rail 8, which can insert the cloth support frame 17 into the transverse groove 36. The other side of the knife rest 3 is connected with a retraction guide rail 5. The push frame guide wheels 30 on the plurality of cloth support frames 17 on the lower side are in contact with the outer side of the insertion guide rail 8, and the push frame guide wheels 30 on the plurality of cloth support frames 17 on the other lower side are in contact with the inner side of the retraction guide rail 5. The push frame guide wheel 30 rolls on the retraction guide rail 5, which can extract the cloth support frame 17 from the transverse groove 36. A fixed frame member is arranged on the end face of the frame guide shell 19 opposite to the chain plate assembly 10, and the fixed frame member presses on the cloth support frame 17. A scraper member is arranged at the upper end of the knife rest 3.

[0027] Reinforcing frames 9 are fixedly installed obliquely on both sides of the end of the knife rest 3, and the ends of the reinforcing frames 9 are fixed to the chain plate assembly 10. The reinforcing frames 9 play a role in strengthening the connection of the chain plate assembly 10. Two first connecting columns 32 are fixedly installed at the lower ends of the insertion guide rail 8 respectively, and a second fixed angle bracket 7 is fixedly installed between the outer surfaces of the two first connecting columns 32. The second fixed angle bracket 7 is fixed to the knife rest 3. The first connecting columns 32 and the second fixed angle bracket 7 play a role in fixing the insertion guide rail 8.

[0028] A shell seat 18 extends from the end face of the frame guide shell 19 relative to the chain plate assembly 10, and the end of the shell seat 18 is fixed to the chain plate on the chain plate assembly 10. The shell seat 18 plays a role in supporting and fixing the frame guide shell 19. Two second connecting columns 33 are fixedly installed at the lower ends of the retraction guide rail 5 respectively, and a first fixed angle bracket 6 is fixedly installed between the outer surfaces of the two second connecting columns 33. The first fixed angle bracket 6 is fixed to the knife rest 3. The second connecting columns 33 and the first fixed angle bracket 6 play a role in fixing the retraction guide rail 5.

[0029] At the rear end of the dehydrator body 1 near the edge, a shaft bracket 14 is fixedly installed. At the end of the shaft bracket 14, a transmission shaft 13 is rotatably installed. The shaft bracket 14 serves to support the transmission shaft 13, and the transmission shaft 13 serves for transmission. At the ends of the sprocket shafts of the chain plate assembly 10 and on the outer surface of the transmission shaft 13, first belt pulleys 11 are coaxially inlaid. A first synchronous belt 12 is connected between the two first belt pulleys 11. The first belt pulleys 11 serve to connect the first synchronous belt 12. On the outer surface of the transmission shaft 13 and at the end of the belt drive shaft of the dehydrator body 1, second belt pulleys 15 are coaxially inlaid. A second synchronous belt 16 is connected between the two second belt pulleys 15. The second belt pulleys 15 serve to connect the second synchronous belt 16. The second belt pulley 15 and the first belt pulley 11 on the transmission shaft 13 are arranged in a staggered manner. The second synchronous belt 16 and the first synchronous belt 12 can connect the sprocket shaft of the chain plate assembly 10 and the belt drive shaft of the dehydrator body 1 together, so that the chain plates on the chain plate assembly 10 and the rubber belt 34 on the dehydrator body 1 can move at the same speed and in the same direction, thereby ensuring that during the movement process, multiple cloth support frames 17 can always be aligned and inserted into the transverse grooves 36 on the rubber belt 34.

[0030] The fixed frame member includes a bearing cover 20 fixedly installed on the end face of the frame guide housing 19 opposite to the chain plate assembly 10. Inside the bearing cover 20, a pressing plate 24 is elastically connected. The bearing cover 20 serves to support the pressing plate 24. The pressing plate 24 passes through the outer surface of the frame guide housing 19 and presses on the cloth support frame 17. The pressing plate 24 is slidably engaged with the frame guide housing 19. The pressing plate 24 can press on the cloth support frame 17 to fixedly hold the cloth support frame 17 in real time, so that when there is no external force acting on the cloth support frame 17, it will not shift by itself.

[0031] On the inner top surface of the bearing cover 20, a limiting post 21 is fixedly installed. On the outer surface of the limiting post 21, a limiting sleeve 22 is slidably installed. The end of the limiting sleeve 22 is fixed to the pressing plate 24. The limiting post 21 and the limiting sleeve 22 serve to prevent the pressing spring 23 from being bent. A pressing spring 23 is wound around the outside of the limiting post 21 and the limiting sleeve 22. One end of the pressing spring 23 is fixed to the pressing plate 24. The pressing spring 23 serves to press the pressing plate 24 against the cloth support frame 17. The other end of the pressing spring 23 is fixed to the inner wall of the bearing cover 20.

[0032] The scraper member includes two guide posts 27 slidably installed through the upper end of the knife rest 3. Between the ends of the two guide posts 27, a knife seat 29 is fixedly installed. The guide posts 27 serve to guide the knife seat 29. Between the two ends of the knife seat 29, an annular scraper 2 is fixedly installed. The knife seat 29 serves to support the annular scraper 2. The annular scraper 2 presses against the filter cloth 35 of the dehydrator body 1. The annular design of the annular scraper 2 can avoid scratching the filter cloth 35.

[0033] An adjusting screw rod 25 is arranged between two guide columns 27. The adjusting screw rod 25 passes through and is screwed tightly on the tool rest 3. The adjusting screw rod 25 functions to adjust the scraping force of the annular scraper 2. A hand wheel 26 is coaxially and fixedly installed at the lower end of the adjusting screw rod 25. The hand wheel 26 functions to facilitate the rotation of the adjusting screw rod 25. An adjusting seat 4 is rotatably installed at the upper end of the adjusting screw rod 25. Pressing caps 31 are inlaid at both ends of the adjusting seat 4. The adjusting seat 4 can drive the pressing caps 31 to move so as to squeeze the pressing spring 28. The pressing caps 31 are slidably installed on the outer surface of the guide columns 27. A pressing spring 28 is wound around the outside of the guide columns 27. One end of the pressing spring 28 is fixed to the pressing cap 31, and the other end of the pressing spring 28 is fixed to the tool rest 29. The pressing spring 28 can press the annular scraper 2 tightly against the filter cloth 35 of the dewatering machine body 1 to scrape off the filter cake on the filter cloth 35.

[0034] During use, when the rubber belt 34 on the dehydrator body 1 drives the filter cloth 35 to move, the annular scraper 2 will press tightly against the filter cloth 35 to scrape off the filter cake on the filter cloth 35. At the same time, the adjusting screw rod 25 can be rotated to drive the adjusting seat 4 to move by the thread between the adjusting screw rod 25 and the tool rest 3, so as to squeeze the pressing spring 28, increase the deformation of the pressing spring 28, thereby increasing the pressing force on the annular scraper 2, and then adjusting the frictional force between the annular scraper 2 and the filter cloth 35 to change the scraping force of the annular scraper 2 on the filter cloth 35. When the annular scraper 2 scrapes the filter cake on the filter cloth 35, the chain plate assembly 10 is driven by the belt drive shaft on the dehydrator body 1 to move synchronously with the rubber belt 34. At this time, the chain plate assembly 10 drives a plurality of cloth support frames 17 to rotate in the same direction as the rubber belt 34. The push frame guide wheel 30 on the cloth support frame 17 rotated to the lower part by the chain plate assembly 10 will roll along the outside of the insertion guide rail 8, so that under the drive of the inclined surface of the insertion guide rail 8, the cloth support frame 17 will gradually move forward during the movement and be inserted into the transverse groove 36 on the rubber belt 34. Subsequently, the cloth support frame 17 continues to move under the drive of the chain plate assembly 10. At this time, the push frame guide wheel 30 on the cloth support frame 17 moves to the retraction guide rail 5 and rolls along the inside of the retraction guide rail 5 to gradually retract the cloth support frame 17 inserted into the transverse groove 36. In this cycle, when the filter cloth 35 at the transverse groove 36 moves to the annular scraper 2, the cloth support frame 17 inserted into the transverse groove 36 can support the filter cloth 35, so that the annular scraper 2 and the filter cloth 35 are in close contact to prevent a gap from appearing between the two, thereby ensuring that the filter cake on the filter cloth 35 is fully scraped off. When the cloth support frame 17 is retracted, the pressing spring 23 will press the pressing plate 24 to press the pressing plate 24 tightly against the cloth support frame 17, thereby fixing the cloth support frame 17 in real time, so that when there is no external force acting on the cloth support frame 17, it will not shift by itself, so as to avoid the phenomenon that when the chain plate assembly 10 drives the retracted cloth support frame 17 to move, the cloth support frame 17 automatically extends and abuts against the frame of the dehydrator body 1, resulting in the movement of the chain plate assembly 10 being blocked.

[0035] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent in such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum belt dehydrator scraper adjustment device, comprising a dehydrator body (1), characterized in that: A knife rack (3) is fixedly mounted on the front end of the frame of the dehydrator body (1), and a chain plate assembly (10) is fixedly mounted on the end of the knife rack (3). The chain plate assembly (10) is connected to the belt drive shaft of the dehydrator body (1), and a plurality of rack guide shells (19) are evenly distributed and mounted on the chain plate of the chain plate assembly (10). A cloth support rack (17) is slidably mounted through the interior of each of the plurality of rack guide shells (19). The spacing between the plurality of cloth support racks (17) matches the spacing between the plurality of transverse grooves on the rubber belt of the dehydrator body (1). The front end of the cloth support rack (17) is arranged in a conical shape. A pusher guide wheel (30) is installed at the rear end of the tool holder (7), one side of the tool holder (3) is connected to an insertion guide rail (8), and the other side of the tool holder (3) is connected to a retraction guide rail (5), the pusher guide wheels (30) on the plurality of cloth support frames (17) located on the lower side are fitted with the outer side of the insertion guide rail (8), and the pusher guide wheels (30) on the plurality of cloth support frames (17) located on the other side are fitted with the inner side of the retraction guide rail (5), the end face of the guide housing (19) opposite to the chain plate assembly (10) is provided with a fixed frame member, and the fixed frame member is pressed against the cloth support frame (17), and a scraper member is provided at the upper end of the tool holder (3).

2. The vacuum belt dehydrator scraper adjustment device according to claim 1, characterized in that: Reinforcement frames (9) are obliquely fixedly installed on both sides of the end of the tool holder (3), and the ends of the reinforcement frames (9) are fixed to the chain plate assembly (10). Two No. 1 connecting columns (32) are fixedly installed on the lower ends of the insertion guide rails (8), and a No. 2 fixed angle frame (7) is fixedly installed between the outer surfaces of the two No. 1 connecting columns (32), and the No. 2 fixed angle frame (7) is fixed to the tool holder (3).

3. The adjustment device for a vacuum belt dehydrator scraper according to claim 1, characterized in that: The frame guide housing (19) is provided with a housing seat (18) extending from the end surface of the chain plate assembly (10), and the end of the housing seat (18) is fixed to the chain plate on the chain plate assembly (10). Two No. 2 connecting columns (33) are fixedly mounted on the lower end of the retracting guide rail (5), and a No. 1 fixed angle frame (6) is fixedly mounted between the outer surfaces of the two No. 2 connecting columns (33), and the No. 1 fixed angle frame (6) is fixed to the tool holder (3).

4. The adjusting device for a vacuum belt dehydrator scraper according to claim 1, characterized in that: A shaft frame (14) is fixedly mounted near the edge of the rear end of the dehydrator body (1), and a transmission shaft (13) is rotatably mounted on the end of the shaft frame (14). A first pulley (11) is coaxially inlaid on the end of the sprocket shaft of the chain plate assembly (10) and the outer surface of the transmission shaft (13), and a first synchronous belt (12) is connected between the two first pulleys (11). A second pulley (15) is coaxially inlaid on the outer surface of the transmission shaft (13) and the end of the belt drive shaft of the dehydrator body (1), and a second synchronous belt (16) is connected between the two second pulleys (15). The second pulley (15) and the first pulley (11) on the transmission shaft (13) are arranged in a staggered manner.

5. The vacuum belt dehydrator scraper adjustment device according to claim 1, characterized in that: The fixed frame member includes a bearing cover (20) fixedly mounted on the end surface of the frame guide shell (19) opposite to the chain plate assembly (10), and the interior of the bearing cover (20) is elastically connected to a clamping plate (24), and the clamping plate (24) passes through the outer surface of the frame guide shell (19) and is clamped on the cloth support frame (17), and the clamping plate (24) is slidably matched with the frame guide shell (19).

6. The vacuum belt dehydrator scraper adjustment device according to claim 5, characterized in that: A limiting column (21) is fixedly mounted on the inner top surface of the bearing cover (20), a limiting sleeve (22) is slidably mounted on the outer surface of the limiting column (21), an end of the limiting sleeve (22) is fixed to a clamping plate (24), a clamping spring (23) is wound around the outer sides of the limiting column (21) and the limiting sleeve (22), one end of the clamping spring (23) is fixed to the clamping plate (24), and the other end of the clamping spring (23) is fixed to the inner wall of the bearing cover (20).

7. The adjusting device for a scraper of a vacuum belt dehydrator according to claim 1, characterized in that: The scraper member comprises two guide columns (27) which penetrate and are slidably mounted on the upper end of the blade holder (3); a blade seat (29) is fixedly mounted between the ends of the two guide columns (27); an annular scraper (2) is fixedly mounted between the two ends of the blade seat (29); and the annular scraper (2) is pressed tightly against the filter cloth of the dehydrator body (1).

8. The adjustment device for the scraper of a vacuum belt dehydrator according to claim 7, characterized in that: An adjusting threaded rod (25) is arranged between the two guide columns (27), the adjusting threaded rod (25) penetrates and is screwed onto the tool holder (3), a hand wheel (26) is coaxially fixedly mounted on the lower end of the adjusting threaded rod (25), an adjusting seat (4) is rotatably mounted on the upper end of the adjusting threaded rod (25), both ends of the adjusting seat (4) are inlaid with clamping caps (31), the clamping caps (31) are slidably mounted on the outer surface of the guide column (27), a clamping spring (28) is wound around the outer side of the guide column (27), one end of the clamping spring (28) is fixed to the clamping cap (31), and the other end of the clamping spring (28) is fixed to the tool holder (29).

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