Adjusting device for scraper of vacuum belt dehydrator

Abstract

The invention relates to the field of separation facilities, in particular to a vacuum belt dehydrator scraper adjusting device which comprises a dehydrator body, a scraper rest is fixedly installed at the front end of a rack of the dehydrator body, a chain plate assembly is fixedly installed at the end of the scraper rest, and the chain plate assembly is connected with a belt driving shaft of the dehydrator body. A plurality of frame guide shells are evenly distributed and installed on a chain plate of the chain plate assembly, cloth supporting frames are installed in the frame guide shells in a penetrating and sliding mode, and the distance between the cloth supporting frames is matched with the distance between a plurality of transverse grooves in a rubber belt of the dehydrator body. According to the invention, it is ensured that filter cakes on the filter cloth are fully scraped off, the cleaning and scraping effect is effectively improved, and meanwhile, the phenomenon that the movement of the chain plate assembly is blocked due to the fact that the drawn-back cloth supporting frame automatically extends out and abuts against the rack of the dehydrator body is avoided.

Description

Technical Field

[0001] The invention relates to the field of separation facilities, in particular to an adjusting device for a scraper of a vacuum belt dehydrator. Background Art

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

[0003] The annular scraper is usually equipped with an adjustment device, which can only adjust the friction between the annular scraper and the filter cloth, thereby changing the scraping force of the annular scraper on the filter cloth. However, due to the transverse grooves on the rubber belt, when the annular scraper presses the filter cloth against the rubber belt for scraping, when it moves to the position of the transverse grooves, the filter cloth loses support due to the presence of the transverse grooves. At this time, a gap will appear between the filter cloth and the annular scraper, and it is difficult for the two to come into close contact, causing the filter cake to pass through the gap, resulting in the phenomenon that the filter cake on the filter cloth is not completely scraped off, and the scraping effect is poor. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose an adjustment device for a scraper of a vacuum belt dehydrator.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adjustment device for a scraper of a vacuum belt dehydrator, comprising a dehydrator body, a knife holder is fixedly installed at the front end of the frame of the dehydrator body, a chain plate assembly is fixedly installed at the end of the knife holder, the chain plate assembly is connected to the belt drive shaft of the dehydrator body, a plurality of frame guide shells are evenly distributed and installed on the chain plate of the chain plate assembly, a plurality of the frame guide shells are all penetrated and slidably installed with cloth support racks, and the spacing between the plurality of the cloth support racks is the same as the spacing between the plurality of transverse grooves on the rubber belt of the dehydrator body. The front end of the cloth support frame is conically arranged, and a pusher guide wheel is installed at the rear end of the cloth support frame. One side of the tool holder is connected with an insertion guide rail, and the other side of the tool holder is connected with a withdrawal guide rail. The pusher guide wheels on the multiple cloth support frames on the lower side are fitted with the outer side of the insertion guide rail, and the pusher guide wheels on the multiple cloth support frames on the other side are fitted with the inner side of the withdrawal guide rail. A fixed frame part is arranged on the end face of the frame guide shell opposite to the chain plate assembly, and the fixed frame part is pressed against the cloth support frame. A scraper part is arranged on the upper end of the tool holder.

[0006] Preferably, reinforcement frames are obliquely fixedly installed on both sides of the end of the tool holder, the ends of the reinforcement frames are fixed to the chain plate assembly, two No. 1 connecting columns are fixedly installed on the lower end of the insertion guide rail, and a No. 2 fixed angle frame is fixedly installed between the outer surfaces of the two No. 1 connecting columns, and the No. 2 fixed angle frame is fixed to the tool holder.

[0007] Preferably, the frame guide shell has a shell seat extending relative to the end surface of the chain plate assembly, the end of the shell seat is fixed to the chain plate on the chain plate assembly, and two No. 2 connecting columns are fixedly installed on the lower end of the retraction guide rail, and a No. 1 fixed angle bracket is fixedly installed between the outer surfaces of the two No. 2 connecting columns, and the No. 1 fixed angle bracket is fixed to the tool holder.

[0008] Preferably, an axis frame is fixedly installed at the rear end of the dehydrator body near the edge, and a transmission shaft is rotatably installed at the end of the axis frame. A No. 1 pulley is coaxially embedded in the end of the sprocket shaft of the chain plate assembly and the outer surface of the transmission shaft, and a No. 1 synchronous belt is connected between the two No. 1 pulleys. A No. 2 pulley is coaxially embedded in the outer surface of the transmission shaft and the end of the belt drive shaft of the dehydrator body, and a No. 2 synchronous belt is connected between the two No. 2 pulleys. The No. 2 pulley and the No. 1 pulley on the transmission shaft are staggered.

[0009] Preferably, the fixed frame member includes a bearing cover fixedly mounted on the end face of the frame guide shell opposite to the chain plate assembly, and the interior of the bearing cover is elastically connected to a clamping plate, the clamping plate passes through the outer surface of the frame guide shell and is pressed onto the cloth support frame, and the clamping plate is slidably matched with the frame guide shell.

[0010] Preferably, a limiting column 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 column, the end of the limiting sleeve is fixed to the clamping plate, a compression spring is wrapped around the outer side of the limiting column and the limiting sleeve, one end of the compression spring is fixed to the clamping plate, and the other end of the compression spring is fixed to the inner wall of the bearing cover.

[0011] Preferably, the scraper member includes two guide columns slidably installed on the upper end of the knife frame, a knife seat is fixedly installed between the ends of the two guide columns, an annular scraper is fixedly installed between the two ends of the knife seat, and the annular scraper is tightly pressed against the filter cloth of the dehydrator body.

[0012] Preferably, an adjusting threaded rod is provided between the two guide columns, the adjusting threaded rod passes through and is screwed onto the tool holder, a hand wheel is coaxially fixedly mounted on the lower end of the adjusting threaded rod, an adjusting seat is rotatably mounted on the upper end of the adjusting threaded rod, both ends of the adjusting seat are inlaid with clamping caps, the clamping caps are slidably mounted on the outer surface of the guide column, a clamping spring is wound around the outer side of the guide column, one end of the clamping spring is fixed to the clamping cap, and the other end of the clamping spring is fixed to the tool holder.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. When the rubber belt on the dehydrator body drives the filter cloth to move, the annular scraper will press against the filter cloth to scrape the filter cake off the filter cloth. In this process, the chain plate assembly is driven by the belt drive shaft on the dehydrator body and moves synchronously with the rubber belt. At this time, the chain plate assembly drives multiple cloth support racks to rotate in the same direction as the rubber belt. The push rack guide wheel on the cloth support rack transferred to the bottom by the chain plate assembly will roll along the outer side of the insertion guide rail, so that the cloth support rack will gradually move forward during the movement process and insert into the rubber belt. The cloth support frame moves to the transverse groove on the belt, and then the cloth support frame continues to move driven by the chain plate assembly. At this time, the push frame guide wheel on the cloth support frame moves to the withdrawal guide rail and rolls along the inner side of the withdrawal guide rail to gradually withdraw the cloth support frame inserted in the transverse groove. This cycle allows the filter cloth at the transverse groove to be supported by the cloth support frame inserted in the transverse groove when it moves to the annular scraper, so that the annular scraper and the filter cloth are in close contact to avoid a gap between the two, thereby ensuring that the filter cake on the filter cloth is fully scraped off and improving the cleaning effect.

[0014] 2. When the cloth support rack is retracted, the compression spring will press the compression plate so that the compression plate is pressed against the cloth support rack, thereby fixing the cloth support rack in real time and preventing the cloth support rack from shifting by itself when there is no external force. This prevents the chain plate assembly from automatically extending out and contacting with the frame of the dehydrator body when the chain plate assembly drives the retracted cloth support rack to move, causing the movement of the chain plate assembly to be obstructed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A bottom view of the present invention; Figure 3 It is a partial view of the present invention; Figure 4 For the present invention Figure 3 A magnified view of middle; Figure 5 This is a plug-in view of the cloth support rack of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of middle B; Figure 7 It is a matching view of the cloth support rack, the withdrawal guide rail and the insertion guide rail of the present invention; Figure 8 It is an internal view of the bearing cover of the present invention.

[0016] In the attached drawings, the parts represented by the reference numerals are as follows: 1. Dehydrator body; 2. Annular scraper; 3. Knife holder; 4. Adjustment seat; 5. Retracting guide rail; 6. No. 1 fixed angle bracket; 7. No. 2 fixed angle bracket; 8. Inserting guide rail; 9. Reinforcement bracket; 10. Chain plate assembly; 11. No. 1 pulley; 12. No. 1 synchronous belt; 13. Transmission shaft; 14. Shaft bracket; 15. No. 2 pulley; 16. No. 2 synchronous belt; 17. Support Cloth rack; 18. Shell seat; 19. Rack guide shell; 20. Bearing cover; 21. Limiting column; 22. Limiting sleeve; 23. Compression spring; 24. Compression plate; 25. Adjustment threaded rod; 26. Hand wheel; 27. Guide column; 28. Pressing spring; 29. ​​Knife holder; 30. Push rack guide wheel; 31. Compression cap; 32. No. 1 connecting column; 33. No. 2 connecting column; 34. Rubber belt; 35. Filter cloth; 36. Horizontal groove. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] The present invention provides a technical solution: Figure 1-Figure 8The adjustment device of the scraper of a vacuum belt dewatering machine shown in the figure includes a dewatering machine body 1, a knife holder 3 is fixedly installed at the front end of the frame of the dewatering machine body 1, and a chain plate assembly 10 is fixedly installed at the end of the knife holder 3. The chain plate assembly 10 utilizes the rotation of the sprocket to drive the chain to move, thereby driving the chain plate on the chain to move. Because the above-mentioned 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 driving shaft of the dewatering machine body 1, and a plurality of frame guide shells 19 are evenly distributed on the chain plate of the chain plate assembly 10. Cloth support frames 17 are slidably installed inside the plurality of frame guide shells 19. The frame guide shells 19 play a role in guiding the cloth support frames 17. The spacing between the plurality of cloth support frames 17 matches the spacing between the plurality of transverse grooves 36 on the rubber belt 34 of the dewatering machine body 1, which can ensure that the chain plate assembly 10 can smoothly move the plurality of cloth support frames 17 when driving them to move. A cloth support frame 17 is inserted into a plurality of transverse grooves 36. The front end of the cloth support frame 17 is set in a cone shape, which can facilitate the insertion of the cloth support frame 17 into the transverse groove 36. The rear end of the cloth support frame 17 is installed with a push frame guide wheel 30, which plays a role in reducing wear. One side of the tool holder 3 is connected to an insertion guide rail 8, and the push frame guide wheel 30 rolls on the insertion guide rail 8, so that the cloth support frame 17 can be inserted into the transverse groove 36. The other side of the tool holder 3 is connected to a withdrawal guide rail 5, which is located below The pushing rack guide wheels 30 on the multiple cloth supporting racks 17 on one side are fitted with the outer side of the insertion guide rail 8, and the pushing rack guide wheels 30 on the multiple cloth supporting racks 17 located on the other side below are fitted with the inner side of the withdrawal guide rail 5. The pushing rack guide wheels 30 roll on the withdrawal guide rail 5, and the cloth supporting racks 17 can be pulled out from the transverse groove 36. The end face of the rack guide housing 19 opposite to the chain plate assembly 10 is provided with a fixed frame part, and the fixed frame part is pressed against the cloth supporting rack 17. A scraper part is provided at the upper end of the tool holder 3.

[0019] Reinforcement frames 9 are obliquely fixedly installed on both sides of the end of the tool holder 3. The ends of the reinforcement frames 9 are fixed to the chain plate assembly 10. The reinforcement frames 9 play a role in strengthening the connection with the chain plate assembly 10. Two No. 1 connecting columns 32 are fixedly installed on the lower end of the insertion guide rail 8. A No. 2 fixed angle frame 7 is fixedly installed between the outer surfaces of the two No. 1 connecting columns 32. The No. 2 fixed angle frame 7 is fixed to the tool holder 3. The No. 1 connecting column 32 and the No. 2 fixed angle frame 7 play a role in fixing the insertion guide rail 8.

[0020] A shell seat 18 is extended from the end surface 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 supports and fixes the frame guide shell 19. Two No. 2 connecting columns 33 are fixedly installed on the lower end of the withdrawal guide rail 5, and a No. 1 fixed angle bracket 6 is fixedly installed between the outer surfaces of the two No. 2 connecting columns 33. The No. 1 fixed angle bracket 6 is fixed to the tool holder 3. The No. 2 connecting column 33 and the No. 1 fixed angle bracket 6 fix the withdrawal guide rail 5.

[0021] A shaft frame 14 is fixedly installed near the edge of the rear end of the dehydrator body 1, and a transmission shaft 13 is rotatably installed at the end of the shaft frame 14. The shaft frame 14 plays a role in bearing the transmission shaft 13, and the transmission shaft 13 plays a role in transmission. The end of the sprocket shaft of the chain plate assembly 10 and the outer surface of the transmission shaft 13 are coaxially inlaid with a No. 1 pulley 11, and a No. 1 synchronous belt 12 is connected between the two No. 1 pulleys 11. The No. 1 pulley 11 plays the role of connecting the No. 1 synchronous belt 12, and the outer surface of the transmission shaft 13 and the end of the belt drive shaft of the dehydrator body 1 are coaxially inlaid with a No. 2 pulley 15, two A No. 2 synchronous belt 16 is connected between the No. 2 pulley 15, and the No. 2 pulley 15 serves to connect the No. 2 synchronous belt 16. The No. 2 pulley 15 and the No. 1 pulley 11 on the transmission shaft 13 are staggered. The No. 2 synchronous belt 16 and the No. 1 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 plate 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 the multiple cloth support racks 17 can always be aligned with the transverse grooves 36 on the rubber belt 34 for insertion during the movement.

[0022] The fixed frame includes a bearing cover 20 fixedly mounted on the end face of the frame guide shell 19 opposite to the chain plate assembly 10. The bearing cover 20 is elastically connected to a clamping plate 24 inside. The bearing cover 20 serves to support the clamping plate 24. The clamping plate 24 passes through the outer surface of the frame guide shell 19 and is pressed against the cloth support frame 17. The clamping plate 24 is slidably matched with the frame guide shell 19. The clamping plate 24 can be pressed against the cloth support frame 17 to fix the cloth support frame 17 in real time, so that the cloth support frame 17 will not shift by itself when there is no external force.

[0023] A limiting column 21 is fixedly installed on the inner top surface of the bearing cover 20, and a limiting sleeve 22 is slidably installed on the outer surface of the limiting column 21. The end of the limiting sleeve 22 is fixed to the clamping plate 24. The limiting column 21 and the limiting sleeve 22 prevent the clamping spring 23 from bending. A clamping spring 23 is wrapped around the outer side of the limiting column 21 and the limiting sleeve 22. One end of the clamping spring 23 is fixed to the clamping plate 24. The clamping spring 23 presses the clamping plate 24 onto the cloth support frame 17, and the other end of the clamping spring 23 is fixed to the inner wall of the bearing cover 20.

[0024] The scraper member includes two guide columns 27 that are slidably installed on the upper end of the knife frame 3. A knife seat 29 is fixedly installed between the ends of the two guide columns 27. The guide columns 27 play a role in guiding the knife seat 29. An annular scraper 2 is fixedly installed between the two ends of the knife seat 29. The knife seat 29 plays a role in supporting the annular scraper 2. The annular scraper 2 is tightly pressed 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.

[0025] An adjusting threaded rod 25 is arranged between the two guide columns 27, and the adjusting threaded rod 25 penetrates and is screwed on the knife holder 3. The adjusting threaded rod 25 plays the role of adjusting the scraping force of the annular scraper 2. A hand wheel 26 is coaxially fixedly installed on the lower end of the adjusting threaded rod 25, and the hand wheel 26 plays the role of facilitating the rotation of the adjusting threaded rod 25. An adjusting seat 4 is rotatably installed on the upper end of the adjusting threaded rod 25. Both ends of the adjusting seat 4 are inlaid with clamping caps 31. The adjusting seat 4 can drive the clamping cap 31 to move to squeeze the tensioning spring 28. The clamping cap 31 is slidably installed on the outer surface of the guide column 27. A tensioning spring 28 is wound around the outer side of the guide column 27. One end of the tensioning spring 28 is fixed to the tensioning cap 31, and the other end of the tensioning spring 28 is fixed to the knife holder 29. The tensioning spring 28 can tighten the annular scraper 2 to the filter cloth 35 of the dehydrator body 1 to scrape off the filter cake on the filter cloth 35.

[0026] When in use, when the rubber belt 34 on the dehydrator body 1 drives the filter cloth 35 to move, the annular scraper 2 will be pressed against the filter cloth 35 to scrape the filter cake on the filter cloth 35, and at the same time, the adjusting threaded rod 25 can be rotated to use the thread between the adjusting threaded rod 25 and the knife holder 3 to drive the adjusting seat 4 to move, so as to squeeze the tightening spring 28 to increase the deformation of the tightening spring 28, thereby increasing the tightening force of the annular scraper 2, and then adjusting the friction between the annular scraper 2 and the filter cloth 35 to change the annular scraper The scraper 2 has a strong scraping force on the filter cloth 35. When the annular scraper 2 is scraping 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 multiple cloth support racks 17 to rotate in the same direction as the rubber belt 34. The push rack guide wheel 30 on the cloth support rack 17 that is transferred to the bottom by the chain plate assembly 10 will roll along the outer side of the insertion guide rail 8, so that the cloth support rack 17 is gradually moved forward during the movement under the drive of the inclined surface of the insertion guide rail 8. The cloth support frame 17 is in the transverse groove 36 on the rubber belt 34, and then the cloth support frame 17 continues to move driven by the chain plate assembly 10. At this time, the push frame guide wheel 30 on the cloth support frame 17 moves to the withdrawal guide rail 5 and rolls along the inner side of the withdrawal guide rail 5 to gradually withdraw the cloth support frame 17 inserted in the transverse groove 36. In this way, when the filter cloth 35 at the transverse groove 36 moves to the annular scraper 2, the cloth support frame 17 inserted in the transverse groove 36 can be used to support the filter cloth 35, so that the annular scraper 2 and the filter cloth 35 are in close contact to avoid To avoid the formation of a gap 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 withdrawn, the clamping spring 23 will press the clamping plate 24, so that the clamping plate 24 is pressed against the cloth support frame 17, thereby fixing the cloth support frame 17 in real time, so that the cloth support frame 17 will not shift by itself when there is no external force, to avoid the chain plate assembly 10 automatically extending out when the chain plate assembly 10 drives the withdrawn cloth support frame 17 to move and abutting against the frame of the dehydrator body 1, resulting in the movement of the chain plate assembly 10 being obstructed.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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 scraper of a vacuum belt dehydrator 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 adjustment device for the scraper of a vacuum belt dehydrator 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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