Improved disc dehydrator

Abstract

The invention relates to the technical field of dehydration equipment, and discloses an improved disc dehydrator which comprises a rack, a disc filtering assembly and a scraping assembly, the scraping assembly comprises a connecting block, a placing groove is formed in the top of the connecting block, a scraper is movably arranged in the placing groove, an adjusting assembly is further arranged on the connecting block, and the adjusting assembly is arranged on the rack. The adjusting assembly can change the posture of the scraper in the placing groove; the adjusting assembly comprises a first adjusting rod and a second adjusting rod, the connecting block is provided with a first threaded hole and a second threaded hole which are communicated with the containing groove, the thread turning direction of the first threaded hole is opposite to that of the second threaded hole, the first adjusting rod is in threaded connection with the interior of the first threaded hole, and the second adjusting rod is in threaded connection with the interior of the second threaded hole. The first adjusting rod and the second adjusting rod are each provided with an adjusting gear, the connecting block is further rotationally connected with an adjusting sleeve, and the adjusting sleeve is meshed with the adjusting gears. The device has the advantages of being flexible to use and good in material treatment effect.

Description

Technical Field

[0001] The invention relates to an improved disc dehydrator, belonging to the technical field of dehydration equipment. Background Art

[0002] Disc dehydrator is a kind of equipment used for solid-liquid separation, which is usually used to treat mud, sludge, food processing waste, etc. Its working principle is to use the capillary phenomenon of the disc: when vacuuming, only water can pass through, and air and mineral particles cannot pass through, so that the liquid can be separated from the solid particles, thereby achieving the purpose of dehydration, and it can also ensure no vacuum loss, greatly reducing energy consumption and material moisture.

[0003] At present, the angle between the scraper device used to scrape the filter cake adsorbed on the disc in the common disc dehydrator is mostly fixed and difficult to adjust. For example, the invention patent with Chinese patent application number CN201510893300.1 discloses a disc dehydrator, and its scraper is fixedly set on both sides of each disc, and the angle between the scraper and the disc is fixed. Another example is the utility model patent with Chinese patent application number CN201920183306.3, which discloses a scraping device for a disc dehydrator, and its scraper is also fixedly set, and the angle between the non-ceramic discs cannot be adjusted. Another example is the invention patent application with Chinese patent application number CN202410810542.9, which discloses a disc dehydrator unloading device, and the angle between its inclined scraper and the filter disc is also constant.

[0004] This type of fixed angle scraper has the following problems in actual use: 1. The material processing effect is unstable; materials with different viscosities and particle sizes will form different deposits on the disc, and the pressure applied by the fixed scraper to the deposit is fixed. When facing a deposit formed by fragile materials, it is easy to apply too much pressure to these materials, resulting in excessive scraping and aggravated disc wear; and when facing a deposit formed by high-viscosity materials and fine materials, it is easy to fail to apply enough pressure to these materials, so that they cannot be removed well, causing the disc to be easily blocked.

[0005] 2. Poor operational flexibility: The fixed scraper angle limits the operational flexibility of the equipment. When the material properties or process conditions change, the equipment cannot be adjusted in time to adapt to new needs. Summary of the invention

[0006] In order to solve the above problems existing in the prior art, the present invention provides an improved disc dehydrator.

[0007] The technical solution of the present invention is as follows: An improved disc dehydrator comprises a frame and a disc filter assembly mounted on the frame, a scraper assembly is arranged at a position on the frame close to a discharge portion of the disc filter assembly, the scraper assembly comprises a connecting block for connecting with the frame, a placement slot is provided on the top of the connecting block, a scraper is movably arranged in the placement slot, an adjustment assembly is also arranged on the side wall of the connecting block away from the disc filter assembly, and the adjustment assembly can change the posture of the scraper in the placement slot; the adjustment assembly comprises a first adjustment rod and a second adjustment rod, a first threaded hole and a second threaded hole are provided on the side wall of the connecting block away from the disc filter assembly, and the first threaded hole and the second threaded hole have opposite threaded directions The arrangement is such that the first adjusting rod is threadedly connected to the first threaded hole, one end of the first adjusting rod is inserted into the placement groove to abut against the scraper, and the other end is extended out of the connecting block, and the second adjusting rod is threadedly connected to the second threaded hole, one end of the second adjusting rod is inserted into the placement groove to abut against the scraper, and the other end is extended out of the connecting block; the end portions of the first adjusting rod and the second adjusting rod extending out of the connecting block are both provided with adjustment gears that can drive the first adjusting rod and the second adjusting rod to rotate in the horizontal direction, and the side wall of the connecting block away from the disc filter assembly is also rotatably connected with an adjusting sleeve, and a tooth portion meshing with the adjusting gear is provided on the inner wall of the adjusting sleeve, and the rotation of the adjusting sleeve drives the adjustment gear to rotate.

[0008] Furthermore, the groove walls on both sides of the placement groove and the groove bottom wall leave an adjustment gap between the scraper and the scraper for the scraper to swing. A first mounting groove is provided on the inner groove wall of the placement groove away from the adjustment component side. A first limiting ball is connected to the first mounting groove by setting a first spring. The first limiting ball extends horizontally into the placement groove. A first connecting groove adapted to the first limiting ball is provided on the scraper. The first limiting ball abuts against the inner wall of the first connecting groove. The horizontal position of the first limiting ball abutting against the first connecting groove is in the middle between the first adjusting rod and the second adjusting rod. When the first limiting ball abuts against the inner wall of the first connecting groove, the first spring is in a compressed state.

[0009] Furthermore, a second mounting groove is provided on the bottom wall of the placement groove, and a second limiting ball is connected to the second mounting groove by means of a second spring. The second limiting ball extends upward into the placement groove, and a second connecting groove adapted to the second limiting ball is provided on the scraper. The second limiting ball abuts against the inner wall of the second connecting groove, and the vertical position where the second limiting ball abuts against the second connecting groove is located in the middle of the bottom wall of the scraper. When the second limiting ball abuts against the second connecting groove, the second spring is in a compressed state.

[0010] Furthermore, the adjustment gear is connected to the first adjustment rod and the second adjustment rod in a key connection manner.

[0011] Furthermore, a sealing cover is provided on the side wall of the adjusting sleeve away from the connecting block.

[0012] Furthermore, the disc filter assembly includes a disc body and discs distributed in a circular array on the disc body, a slurry tank is provided on the frame, the lower half of the disc body and the discs located at the lower half of the disc body are arranged to extend into the slurry tank, a vacuum area is formed in the slurry tank, connecting shafts are provided on both side walls of the disc body, and first drive assemblies are provided on both sides of the slurry tank on the frame, and the first drive assemblies are connected to the corresponding side connecting shafts to drive the disc body to rotate.

[0013] Furthermore, the scraper assembly is symmetrically arranged at the discharge part of the disc filter assembly, and the scraper assemblies on both sides are arranged close to the disc, and the blades of the scrapers in the scraper assemblies on both sides can abut against the corresponding side walls of the disc.

[0014] Furthermore, the frame is provided with a collecting groove arranged in a one-to-one correspondence with the scraper assembly, and the filter cake scraped off the disc by the scraper can fall into the collecting groove for collection.

[0015] Furthermore, a baffle is provided between the slurry tank and each collecting tank, and the height of the baffle is not lower than the height of the scraper assembly.

[0016] Furthermore, a stirring assembly is also provided on the frame, and the stirring assembly includes a second driving assembly fixedly provided on the frame and a stirring rod movably mounted on the connecting shaft, the bottom of the stirring rod is arranged to extend into the slurry tank, and a rotating groove is provided on the top of the stirring rod. A connecting rod is also provided between the stirring rod and the second driving assembly, one end of the connecting rod is connected to the driving part of the second driving assembly, and the other end is movably connected to the rotating groove by a pin shaft.

[0017] The present invention has the following beneficial effects: The present invention arranges the scraper movably in the placement groove and arranges an adjustment component to enable the scraper to change its posture in the placement groove, so that the scraper angle can be adjusted when facing different types of materials, so that the scraper can apply appropriate pressure to these materials. When adjusting the angle between the scraper and the disc, the adjustment sleeve is rotated, and the adjustment gear is driven to rotate after the adjustment sleeve rotates, thereby driving the first adjustment rod and the second adjustment rod to rotate. Since the thread rotation directions of the first threaded hole and the second threaded hole are set in opposite directions, the movement directions of the first adjustment rod and the second adjustment rod are set in opposite directions. The extension and contraction movement directions can be adapted to the movement by pushing the scraper, thereby realizing the adjustment of the scraper angle. Compared with the prior art, the present invention has the advantages of flexible use and good material processing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a structural schematic diagram of the present invention; Figure 2 A top view of the present invention; Figure 3 It is a structural schematic diagram of the scraper assembly in the present invention; Figure 4 This is the enlarged view of point A; Figure 5 It is a structural schematic diagram of the scraper in the present invention when adjusting the angle; Figure 6 It is a schematic diagram of the structure of the connection between the adjusting sleeve and the adjusting gear in the present invention.

[0019] The reference numerals in the figure are as follows: 1. Frame; 2. Disc filter assembly; 201. disc body; 202. disc; 203. connecting shaft; 3. Scraper assembly; 301. Connecting block; 302. Placement slot; 303. Scraper; 4. Adjustment assembly; 401. First adjustment rod; 402. Second adjustment rod; 403. First threaded hole; 404. Second threaded hole; 405. Adjustment gear; 406. Adjustment sleeve; 407. Tooth; 408. Cover 5. Adjust the gap; 6. First mounting groove; 7. First spring; 8. First limiting ball; 9. First connecting groove; 10. Second mounting groove; 11. Second spring; 12. Second limiting ball; 13. Second connecting groove; 14. Slurry groove; 15. First driving assembly; 16. Collecting groove; 17. Baffle; 18. stirring assembly; 1801. second driving assembly; 1802. stirring rod; 1803. rotating groove; 1804. connecting rod; 1805. pin shaft. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Example: Please refer to Figures 1 to 6The present embodiment provides an improved disc dehydrator, comprising a frame 1 and a disc filter assembly 2 mounted on the frame 1, wherein the disc filter assembly 2 comprises a disc body 201 and discs 202 distributed in a ring array on the disc body 201, and each disc 202 is provided with filter holes for filtering. A slurry tank 14 is provided on the frame 1, and the slurry tank 14 is used to store the slurry to be filtered. The lower half of the disc body 201 and the disc 202 located at the lower half of the disc body 201 are arranged to extend into the slurry tank 14 to facilitate subsequent filtering work. A vacuum area is formed in the slurry tank 14. The vacuum area cooperates with the extension of the disc 202 so that when the slurry passes through the disc 202, the air and mineral particles in the slurry cannot pass through the disc 202, and only water can pass through, so that the impurities in the slurry can be separated from the slurry, thereby achieving the purpose of filtering. The air and mineral particles that cannot pass through will form a deposition layer on the disc 202 under the capillary action of the disc 202, which is the filter cake. Connecting shafts 203 are provided on both side walls of the disc body 201, and first driving components 15 are provided on both sides of the slurry tank 14 on the frame 1. The first driving components 15 are connected to the corresponding side connecting shafts 203 to drive the disc body 201 to rotate. The first driving components 15 can be a reduction motor commonly used in the prior art, and are fixedly connected to the connecting shaft 203 through an electric spindle to drive the disc body 201 to rotate. After the disc body 201 rotates, the disc 202 can continuously enter and move out of the slurry tank 14. The disc 202 entering the slurry tank 14 can perform corresponding filtering work, and the disc 202 moving out of the slurry tank 14 needs to perform corresponding scraping operations.

[0022] A scraper assembly 3 is provided at a position close to the discharge part of the disc filter assembly 2 on the frame 1. The specific position of the discharge part of the disc filter assembly 2 can be determined according to actual needs. Generally, it is selected at the end position of one side of the disc filter assembly 2. The scraper assembly 3 can scrape the disc filter assembly 2 that continuously passes through this position. The scraper assembly 3 includes a connecting block 301 for connecting with the frame 1. A placement groove 302 is provided on the top of the connecting block 301. A scraper 303 is movably provided in the placement groove 302. In this embodiment, the scraper assembly 3 is symmetrically arranged at the discharge part of the disc filter assembly 2, and the scraper assemblies 3 on both sides are arranged close to the disc 202. Since the main filtering component is the disc 202, the blades of the scrapers 303 in the scraper assemblies 3 on both sides can abut against the corresponding side walls of the passing disc 202, so that the filter cake adsorbed on the disc 202 can be scraped off.

[0023] An adjustment component 4 is also provided on the side wall of the connection block 301 away from the disc filter assembly 2, and the adjustment component 4 can change the posture of the scraper 303 in the placement groove 302. In this embodiment, the adjustment component 4 includes a first adjustment rod 401 and a second adjustment rod 402. A first threaded hole 403 and a second threaded hole 404 are provided on the side wall of the connection block 301 away from the disc filter assembly 2 to communicate with the placement groove 302. The first threaded hole 403 and the second threaded hole 404 are distributed up and down on the connection block 301, and the first threaded hole 403 is provided above the second threaded hole 404. The thread rotation directions of the first threaded hole 403 and the second threaded hole 404 are set in opposite directions. The first adjustment rod 401 is threadedly connected to the first threaded hole 403, one end of the first adjustment rod 401 is inserted into the placement groove 302 to abut against the scraper 303, and the other end is extended out of the connecting block 301. The second adjustment rod 402 is threadedly connected to the second threaded hole 404, one end of the second adjustment rod 402 is inserted into the placement groove 302 to abut against the scraper 303, and the other end is extended out of the connecting block 301. Through the above-mentioned arrangement, when the first adjustment rod 401 and the second adjustment rod 402 rotate in the same direction, because the thread rotation directions of the first threaded hole 403 and the second threaded hole 404 are set in opposite directions, the movement directions of the first adjustment rod 401 and the second adjustment rod 402 are opposite, so that they can perform an extension and retraction movement. Then, if the first adjustment rod 401 pushes the scraper 303, the second adjustment rod 402 performs a retraction movement. This retraction movement can adapt to the displacement generated by the scraper 303 after being pushed, so as not to interfere with the movement of the scraper 303, so that the scraper 303 can perform a corresponding movement, thereby completing the change of posture and completing the adjustment of the angle.

[0024] In order to enable the first adjustment rod 401 and the second adjustment rod 402 to move in the same direction, the ends of the first adjustment rod 401 and the second adjustment rod 402 extending out of the connection block 301 are both provided with adjustment gears 405 capable of driving the first adjustment rod 401 and the second adjustment rod 402 to rotate in the horizontal direction. The adjustment gears 405 on both sides are connected with the first adjustment rod 401 or the second adjustment rod 402 corresponding thereto by a key connection method commonly used in the prior art, so that the adjustment gears 405 on both sides can drive the corresponding first adjustment rod 401 and the second adjustment rod 402 to rotate with them when rotating, and the first adjustment rod 401 and the second adjustment rod 402 can also move through the corresponding adjustment gears 405. An adjustment sleeve 406 is also rotatably connected to the side wall of the connection block 301 away from the disc filter assembly 2. The adjustment sleeve 406 can be rotatably connected to the disc filter assembly 2 by a common bearing connection method, which is not limited here. The inner ring wall of the adjusting sleeve 406 is provided with teeth 407 adapted to the adjusting gears 405 on both sides, and the adjusting sleeve 406 is meshed with the adjusting gears 405 on both sides through the teeth 407, and the rotation of the adjusting sleeve 406 can drive the adjusting gears 405 on both sides to rotate. Through the above arrangement, when the adjusting sleeve 406 rotates, it can drive the adjusting gears 405 on both sides to rotate synchronously and in the same direction through the meshing of the teeth 407 with the adjusting gears 405 on both sides, so that the first adjusting rod 401 and the second adjusting rod 401 can rotate synchronously and in the same direction.

[0025] In order to prevent the adjustment gear 405 from being interfered by external impurities, in the present embodiment, a cover 408 is provided on the side wall of the adjustment sleeve 406 away from the connecting block 301. The cover 408 can protect the adjustment gears 405 on both sides therein, so as to prevent the adjustment gears 405 on both sides from being interfered by external impurities and ensure that they can rotate normally.

[0026] In order to make the scraper 303 move better in the placement groove 302, in this embodiment, the groove walls on both sides of the placement groove 302 and the groove bottom wall are left with an adjustment gap 5 for the scraper 303 to swing, and the specific width of the adjustment gap 5 can be determined according to actual conditions. A first installation groove 6 is provided on the groove wall of the placement groove 302 away from the adjustment component 4. A first limiting ball 8 is connected to the first installation groove 6 by setting a first spring 7. The first limiting ball 8 is arranged to extend into the placement groove 302. A first connecting groove 9 adapted to the first limiting ball 8 is provided on the scraper 303. The first limiting ball 8 abuts against the inner wall of the first connecting groove 9. The horizontal position where the first limiting ball 8 abuts against the first connecting groove 9 is located in the middle between the first adjustment rod 401 and the second adjustment rod 402, so that the first adjustment rod 401 and the second adjustment rod 402 can adjust the scraper 303 more accurately and reliably, and it is not easy to get stuck. The first spring 7 is in a compressed state when the first limiting ball 8 abuts against the inner wall of the first connecting groove 9. A second mounting groove 10 is provided on the bottom wall of the placement groove 302, and a second limiting ball 12 is connected to the second mounting groove 10 by setting a second spring 11. The second limiting ball 12 is arranged to extend into the placement groove 302. A second connecting groove 13 adapted to the second limiting ball 12 is provided on the scraper 303, and the second limiting ball 12 abuts against the inner wall of the second connecting groove 13. The horizontal position of the second limiting ball 12 abutting against the second connecting groove 13 is in the middle position of the bottom wall of the scraper 303. When the second limiting ball 12 abuts against the inner wall of the second connecting groove 13, the second spring 11 is in a compressed state.

[0027] Through the above-mentioned settings, the first limiting ball 8, the second limiting ball 12 cooperate with the first adjustment rod 401 and the second adjustment rod 402 to limit the scraper 303 in the placement groove 302, thereby preventing the scraper 303 from falling off, and this limiting method makes the scraper 303 and the placement groove 302 detachably connected, that is, the scraper 303 can be disassembled by pulling the scraper 303 upwards, which can facilitate the subsequent disassembly of the scraper 303. When the angle between the scraper 303 and the disc 202 needs to be adjusted, the adjusting sleeve 406 is rotated. After the adjusting sleeve 406 rotates, it will drive the adjusting gear 405 to rotate, thereby driving the first adjusting rod 401 and the second adjusting rod 402 to rotate. Since the thread rotation directions of the first threaded hole 403 and the second threaded hole 404 are set in opposite directions, the movement directions of the first adjusting rod 401 and the second adjusting rod 402 are set in opposite directions. The extension and contraction movement directions can be pushed by the scraper 303 to make it swing accordingly, thereby realizing the adjustment of the angle of the scraper 303 to adapt to the scraping work of different types of materials. When the scraper 303 is swinging, the first connecting groove 9 and the second connecting groove 13 will squeeze the first limiting ball 8 and the second limiting ball 12, and the first spring 7 and the second spring 11 can also perform a corresponding contraction movement at this time, so that the first limiting ball 8 and the second limiting ball 12 can perform a corresponding retraction movement to the first mounting groove 6 and the second mounting groove 10 after being compressed, so as to continuously maintain the restriction on the scraper 303 without interfering with the movement of the scraper 303, thereby preventing the scraper 303 from falling off.

[0028] To facilitate the collection of the filter cake, in the present embodiment, a collecting groove 16 is provided on the frame 1 in one-to-one correspondence with the scraper assembly 3. The collecting groove 16 is arranged below the scraper assembly 3. The setting of the collecting groove 16 ensures that the filter cake scraped off the disc 202 by the scraper 303 in the scraper assembly 3 can fall into the corresponding collecting groove 16 for collection.

[0029] In order to prevent the filter cake scraped by the scraper 303 from falling into the slurry tank 14, in the present embodiment, a baffle 17 is provided between the slurry tank 14 and each collecting tank 16, and the height of the baffle 17 is not lower than the height of the scraper assembly 3, so that the position where the scraper 303 scrapes the filter cake is lower than the baffle 17, so that the baffle 17 can play a good blocking role, preventing the filter cake falling from the disc 202 from passing over the baffle 17 and falling into the slurry tank 14.

[0030] To improve the filtering effect, in the present embodiment, a stirring assembly 18 is further provided on the frame 1, and the stirring assembly 18 comprises a second driving assembly 1801 fixedly provided on the frame 1 and a stirring rod 1802 movably sleeved on the connecting shaft 203. The second driving assembly 1801 may be a driving motor commonly used in the prior art. A stirring rod 1802 is provided on each connecting shaft 203, and the bottom of each stirring rod 1802 is provided to extend into the slurry tank 14. A rotating groove 1803 is provided on the top of each stirring rod 1802. A connecting rod 1804 is further provided between each stirring rod 1802 and the second driving assembly 1801. One end of the connecting rod 1804 is connected to the driving part of the second driving assembly 1801, and the other end is movably connected to the rotating groove 1803 on the corresponding side by a pin shaft 1805. Through the above-mentioned arrangement, after the second driving assembly 1801 starts working, it can drive the connecting rods 1804 on both sides and the ends connected thereto to rotate. At this time, the connecting rods 1804 on both sides can drive the corresponding side stirring rods 1802 to swing back and forth around the connecting shaft 203 through the connection of the pin shaft 1805, so that the stirring rod 1802 can stir the slurry in the slurry tank 14, thereby improving the filtering effect and making the adsorption of the disc 202 more comprehensive.

[0031] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An improved disc dehydrator, comprising a frame (1) and a disc filter assembly (2) mounted on the frame (1), a scraper assembly (3) being arranged on the frame (1) at a position close to a discharge portion of the disc filter assembly (2), characterized in that: The scraper assembly (3) comprises a connection block (301) for connecting to the frame (1); a placement groove (302) is provided on the top of the connection block (301); a scraper (303) is movably arranged in the placement groove (302); an adjustment assembly (4) is also arranged on the side wall of the connection block (301) away from the disc filter assembly (2); the adjustment assembly (4) can change the posture of the scraper (303) in the placement groove (302); The adjustment assembly (4) comprises a first adjustment rod (401) and a second adjustment rod (402); a first threaded hole (403) and a second threaded hole (404) are provided on a side wall of the connection block (301) away from the disc filter assembly (2) and are connected to the placement groove (302); the threads of the first threaded hole (403) and the second threaded hole (404) are arranged in opposite directions; the first adjustment rod (401) is threadedly connected to the first threaded hole (403); one end of the first adjustment rod (401) is inserted into the placement groove (302) to abut against the scraper (303); the other end is arranged to extend out of the connection block (301); the second adjustment rod (402) is threadedly connected to the second threaded hole (404); the second One end of the adjustment rod (402) is inserted into the placement groove (302) to abut against the scraper (303), and the other end is arranged to extend out of the connection block (301); the ends of the first adjustment rod (401) and the second adjustment rod (402) extending out of the connection block (301) are both provided with adjustment gears (405) capable of driving the first adjustment rod (401) and the second adjustment rod (402) to rotate in the horizontal direction; an adjustment sleeve (406) is also rotatably connected to the side wall of the connection block (301) away from the disc filter assembly (2); a tooth portion (407) meshing with the adjustment gear (405) is provided on the inner wall of the adjustment sleeve (406); the rotation of the adjustment sleeve (406) drives the adjustment gear (405) to rotate.

2. An improved disc dehydrator according to claim 1, characterized in that: An adjustment gap (5) is left between the groove walls on both sides of the placement groove (302) and the groove bottom wall and the scraper (303) for the scraper (303) to swing. A first installation groove (6) is provided on the inner groove wall of the placement groove (302) away from the adjustment assembly (4). A first limiting ball (8) is connected to the first installation groove (6) by means of a first spring (7). The first limiting ball (8) extends horizontally into the placement groove (302). A first connecting groove (9) adapted to the first limiting ball (8) is provided on the scraper (303). The first limiting ball (8) abuts against the inner wall of the first connecting groove (9). The horizontal position where the first limiting ball (8) abuts against the first connecting groove (9) is located in the middle between the first adjustment rod (401) and the second adjustment rod (402). When the first limiting ball (8) abuts against the inner wall of the first connecting groove (9), the first spring (7) is in a compressed state.

3. An improved disc dehydrator according to claim 2, characterized in that: A second mounting groove (10) is provided on the bottom wall of the placement groove (302); a second limiting ball (12) is connected to the second mounting groove (10) via a second spring (11); the second limiting ball (12) extends upward into the placement groove (302); a second connecting groove (13) adapted to the second limiting ball (12) is provided on the scraper (303); the second limiting ball (12) abuts against the inner wall of the second connecting groove (13); the vertical position where the second limiting ball (12) abuts against the second connecting groove (13) is located in the middle of the bottom wall of the scraper (303); and the second spring (11) is in a compressed state when the second limiting ball (12) abuts against the second connecting groove (13).

4. The improved disc dehydrator according to claim 1, characterized in that: The adjustment gear (405) is connected to the first adjustment rod (401) and the second adjustment rod (402) in a key connection manner.

5. The improved disc dehydrator according to claim 1, characterized in that: A sealing cover (408) is provided on the side wall of the adjustment sleeve (406) away from the connection block (301).

6. The improved disc dehydrator according to claim 1, characterized in that: The disc filter assembly (2) comprises a disc body (201) and discs (202) distributed in an annular array on the disc body (201); a slurry tank (14) is provided on the frame (1); the lower half of the disc body (201) and the discs (202) located at the lower half of the disc body (201) are arranged to extend into the slurry tank (14); a vacuum zone is formed in the slurry tank (14); connecting shafts (203) are provided on both side walls of the disc body (201); first drive assemblies (15) are provided on both sides of the slurry tank (14) on the frame (1); the first drive assemblies (15) are connected to the corresponding side connecting shafts (203) so as to drive the disc body (201) to rotate.

7. An improved disc dehydrator according to claim 6, characterized in that: The scraper assemblies (3) are symmetrically arranged at the discharge portion of the disc filter assembly (2), and the scraper assemblies (3) on both sides are arranged close to the disc (202), and the blades of the scrapers (303) in the scraper assemblies (3) on both sides can abut against the corresponding side walls of the disc (202).

8. An improved disc dehydrator according to claim 6, characterized in that: The frame (1) is also provided with a collecting groove (16) arranged in a one-to-one correspondence with the scraping assembly (3), and the filter cake scraped off the disc (202) by the scraper (303) can fall into the collecting groove (16) for collection.

9. The improved disc dehydrator according to claim 7, characterized in that: A baffle (17) is provided between the slurry tank (14) and each collecting tank (16), and the height of the baffle (17) is not lower than the height of the scraper assembly (3).

10. The improved disc dehydrator according to claim 6, characterized in that: The frame (1) is also provided with a stirring assembly (18), the stirring assembly (18) comprising a second driving assembly (1801) fixedly arranged on the frame (1) and a stirring rod (1802) movably sleeved on a connecting shaft (203), the bottom of the stirring rod (1802) being arranged to extend into the slurry tank (14), the top of the stirring rod (1802) being provided with a rotation groove (1803), a connecting rod (1804) being further provided between the stirring rod (1802) and the second driving assembly (1801), one end of the connecting rod (1804) being connected to a driving portion of the second driving assembly (1801), and the other end being movably connected to the rotation groove (1803) by means of a pin shaft (1805).

Images