Thin-layer sludge drier

Abstract

The utility model relates to a kind of thin-layer sludge drying machine, belong to sludge drying machine technical field, including working bucket, the inside top wall of working bucket is provided with stirring assembly, the inside wall of working bucket is provided with drying assembly, the top of working bucket is connected with sludge conveying pipe, the bottom of working bucket is connected with sludge discharge pipe, the inside top wall of working bucket is fixedly installed with mud stirring bucket;The drying assembly includes the motor with the top of mud stirring bucket fixed connection, motor output end is fixedly installed with rotating shaft.The thin-layer sludge drying machine, when sludge enters through inside working bucket, motor drives rotating shaft to drive rotating barrel to rotate, electric push rod controls spacer to open two mud boards, so that two mud boards are evenly coated into thin layer in the process of rotation, after drying is completed, electric push rod control spacer drops, spacer opens two mud scraping plates and makes it close to barrel wall, so that two mud scraping plates are scraped after drying Sludge.

Description

Technical Field

[0001] This utility model relates to the field of sludge drying machine technology, specifically a thin-layer sludge drying machine. Background Technology

[0002] A sludge dryer is a device used to reduce the moisture content of sludge. It removes moisture from sludge through methods such as thermal drying, natural sun drying, or mechanical dewatering, thereby reducing volume and facilitating transportation and subsequent disposal. Among many drying technologies, the thin-layer sludge dryer, with its unique thin-layer material distribution and efficient heat transfer characteristics, can achieve rapid and uniform drying effects. It also has advantages such as low energy consumption and small footprint, making it an important choice for sludge reduction and resource utilization.

[0003] Utility model patent CN220300604U discloses a thin-layer dryer for sludge drying, including a thin-layer dryer shell, a rotor, and blades disposed on the rotor; end caps are respectively disposed at both ends of the thin-layer dryer shell; the thin-layer dryer shell is provided with a waste steam outlet, a steam inlet, a feed inlet, a discharge outlet, and a steam condensate outlet; the waste steam outlet is used to remove the water vapor evaporated from the wet sludge; the steam inlet is used to inject heat medium into the jacket shell to realize heat exchange between the wet sludge and the heat medium; both ends of the rotor are coaxially disposed on the end caps through rolling bearings, and one end of the rotor is used to connect to an external drive mechanism.

[0004] However, existing thin-layer sludge dryers suffer from inconsistent sludge morphology due to uneven sludge feed size and large differences in moisture content during operation. This can easily lead to uneven heat transfer during the thin-layer drying process, resulting in inconsistent drying effects. This not only affects subsequent treatment but may also increase energy consumption and reduce equipment operating efficiency. Therefore, a thin-layer sludge dryer is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a thin-layer sludge dryer, which has the advantages of high-efficiency drying, uniform heating, and automatic adjustment. It solves the problem that the existing thin-layer sludge dryers suffer from uneven heat transfer due to inconsistent sludge feed size and moisture content, resulting in inconsistent drying effects.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a thin-layer sludge dryer, comprising a working bucket, a stirring assembly provided on the top wall of the working bucket, a drying assembly provided on the inner wall of the working bucket, a sludge conveying pipe connected to the top of the working bucket, a sludge discharge pipe connected to the bottom of the working bucket, and a sludge mixing bucket fixedly installed on the top wall of the working bucket.

[0007] The drying assembly includes a motor fixedly connected to the top of the mixing tank. A rotating shaft is fixedly installed at the output end of the motor. A rotating tank is fixedly installed at the end of the rotating shaft away from the motor. First fixing blocks are fixedly installed on the top outer walls of both sides of the rotating tank. First slide rails are fixedly installed at the bottom of the two first fixing blocks. Sliding mud-scraping plates are slidably connected inside the two first slide rails. First springs are fixedly installed on opposite sides of the two mud-scraping plates. Second fixing blocks are fixedly installed on the bottom outer walls of the front and rear sides of the rotating tank. Second slide rails are fixedly installed on the top of the two second fixing blocks. Sliding mud-scraping plates are slidably connected inside the two second slide rails. Second springs are fixedly installed on the front and rear outer walls of the rotating tank. The ends of the two second springs away from the rotating tank are respectively fixedly connected to the outer walls of the two mud-scraping plates. Two annular heating plates are fixedly installed on the inner wall of the working tank. A pushing assembly is provided on the bottom wall of the working tank.

[0008] Furthermore, the pushing component includes a support frame fixedly connected to the bottom wall of the working barrel, an electric push rod fixedly installed on the top of the support frame, a limit block fixedly installed on the telescopic end of the electric push rod, and the limit block is disposed inside the rotating barrel.

[0009] Furthermore, both of the smearing blades extend from the outside to the inside of the rotating barrel, and the first spring is disposed inside the rotating barrel.

[0010] Furthermore, a protective barrel is fixedly installed at the bottom of the mud-stirring bucket, the motor is located inside the protective barrel, a first circular slide rail is fixedly installed on the outer wall of the protective barrel, a positioning rod is fixedly installed on the top of each of the two first fixed blocks, and the ends of the two positioning rods away from the two first fixed blocks are slidably connected to the inside of the first circular slide rail. A second circular slide rail is fixedly installed on the top of the support frame, and a support rod is fixedly installed on the bottom of each of the two second fixed blocks, and the ends of the two support rods away from the two second fixed blocks are slidably connected to the inside of the second circular slide rail.

[0011] Furthermore, the annular heating plate at the top is disposed on the outside of the slurry plate and the scraper, and the annular heating plate at the bottom is disposed at the bottom of the slurry plate and the scraper.

[0012] Furthermore, the stirring assembly includes a first gear fixedly connected to the surface of the rotating shaft, a rotating rod rotatably mounted on the bottom wall of the inner wall of the protective tank, a second gear fixedly mounted on the surface of the rotating rod, the first gear and the second gear meshing with each other, a third gear fixedly mounted on the top of the rotating rod, a spiral stirring shaft rotatably mounted on the bottom wall of the mud stirring tank, and a fourth gear fixedly mounted on the bottom surface of the spiral stirring shaft, the third gear and the fourth gear meshing with each other.

[0013] Furthermore, the rotating rod extends from the inside of the protective barrel to the inside of the mud-stirring barrel, a guide plate is fixedly installed on the surface of the spiral stirring shaft, a second support rod is fixedly installed on the inner wall of the mud-stirring barrel, the top of the spiral stirring shaft is rotatably connected to the inside of the second support rod, and the third gear and the fourth gear are both located at the bottom of the guide plate.

[0014] Furthermore, an annular groove is provided at the bottom of the mud mixing bucket, and a mud conveying plate is connected to the annular groove. Four support legs are fixedly installed at the bottom of the working bucket.

[0015] Compared with the prior art, this utility model provides a thin-layer sludge dryer, which has the following characteristics:

[0016] Beneficial effects:

[0017] 1. In this thin-layer sludge dryer, when sludge enters the working drum, the motor drives the rotating shaft to rotate the drum. At this time, the electric push rod rises, causing the limit block to open the two sludge-applying plates. During the rotation, the two sludge-applying plates evenly spread the sludge into a thin layer. Subsequently, the annular heating plate heats and dries the thin layer of sludge. After drying, the electric push rod drives the limit block to descend, the sludge-applying plates retract, and the limit block opens the two scraper blades and makes them fit tightly against the drum wall. As the two scraper blades rotate, they scrape off the dried sludge. This design automatically adjusts the position of the sludge-applying plates and scraper blades through the electric push rod, so that the sludge is evenly heated and dried efficiently. After drying, the dried sludge is quickly scraped off, thus achieving a high drying efficiency.

[0018] 2. This thin-layer sludge dryer uses a motor to drive a rotating shaft, which in turn drives a first gear to rotate, thereby driving a second gear and a rotating rod to rotate, which in turn drives a third gear to rotate. Through the meshing transmission between the third and fourth gears, the spiral stirring shaft is driven to rotate inside the sludge mixing tank, so that the sludge reaches a uniform mixing state before entering the drying zone. This design creates favorable conditions for subsequent thin-layer drying, ensuring uniform sludge distribution and improving subsequent drying efficiency. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the internal structure of the working barrel of this utility model;

[0020] Figure 2 This is a side sectional view of the internal structure of the working barrel of this utility model;

[0021] Figure 3 This utility model Figure 1 Enlarged view of point A in the middle;

[0022] Figure 4 This is a schematic diagram of the connection structure between the scraper blade, the electric push rod, and the limiting block of this utility model;

[0023] Figure 5This is a schematic diagram of the connection structure between the trowel plate, the first spring, the electric push rod, and the limiting block of this utility model.

[0024] Figure 6 This is a three-dimensional view of the working bucket and supporting leg structure of this utility model.

[0025] In the diagram: 1. Working bucket; 2. Mixing assembly; 3. Drying assembly; 4. Mud conveying pipe; 5. Mud discharge pipe; 6. Mud mixing bucket; 7. Motor; 8. Rotating bucket; 9. First fixed block; 10. First slide rail; 11. Mud smearing plate; 12. First spring; 13. Second fixed block; 14. Second slide rail; 15. Mud scraper; 16. Second spring; 17. Annular heating plate; 18. Pushing assembly; 19. Electric push rod; 20. Limiting block; 21. Protective bucket; 22. First circular slide rail; 23. Positioning rod; 24. Second circular slide rail; 25. Support rod; 26. First gear; 27. Rotating rod; 28. Second gear; 29. ​​Third gear; 30. Spiral mixing shaft; 31. Fourth gear; 32. Guide plate; 33. Second support rod; 34. Mud conveying plate; 35. Support leg. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1 to 6 A thin-layer sludge dryer in this embodiment includes a working bucket 1, a stirring component 2 is provided on the top wall of the working bucket 1, a drying component 3 is provided on the inner wall of the working bucket 1, a sludge conveying pipe 4 is connected to the top of the working bucket 1, a sludge discharge pipe 5 is connected to the bottom of the working bucket 1, and a sludge mixing bucket 6 is fixedly installed on the top wall of the working bucket 1.

[0028] Specifically, the drying component 3 includes a motor 7 fixedly connected to the top of the mixing bucket 6. A rotating shaft is fixedly installed at the output end of the motor 7. A rotating bucket 8 is fixedly installed at the end of the rotating shaft away from the motor 7. First fixing blocks 9 are fixedly installed on the top outer walls of both sides of the rotating bucket 8. First slide rails 10 are fixedly installed at the bottom of both first fixing blocks 9. Sliding mud plates 11 are slidably connected inside both first slide rails 10. First springs 12 are fixedly installed on opposite sides of the two mud plates 11. Second fixing blocks 13 are fixedly installed on the bottom outer walls of the front and rear sides of the rotating bucket 8. Second slide rails 14 are fixedly installed on the top of both second fixing blocks 13. Sliding mud scrapers 15 are slidably connected inside both second slide rails 14. Second springs 16 are fixedly installed on the front and rear outer walls of the rotating bucket 8. The ends of the two second springs 16 away from the rotating bucket 8 are respectively fixedly connected to the outer walls of the two mud scrapers 15. Two annular heating plates 17 are fixedly installed on the inner wall of the working bucket 1. A pushing component 18 is provided on the bottom wall of the inner wall of the working bucket 1.

[0029] Please see Figure 1 , Figure 2 and Figure 4 , Figure 5 In this embodiment, the pushing component 18 includes a support frame that is fixedly connected to the bottom wall of the working barrel 1. An electric push rod 19 is fixedly installed on the top of the support frame. A limit block 20 is fixedly installed on the telescopic end of the electric push rod 19. The limit block 20 is disposed inside the rotating barrel 8.

[0030] When the motor 7 drives the rotating shaft to rotate the rotating bucket 8, the electric push rod 19 opens the two sludge-scraping plates 11 through the rising limit block 20, so that the two sludge-scraping plates 11 slide outward along the two first slide rails 10 and stretch the first spring 12. During the rotation, the two sludge-scraping plates 11 evenly spread the sludge into a thin layer on the annular heating plate 17 for drying. After drying, the electric push rod 19 descends to reset the sludge-scraping plates 11. Then, the limit block 20 is inserted between the two scraper plates 15, pushing the two scraper plates 15 to slide outward along the two second slide rails 14 and stretch the two second springs 16, so that the two scraper plates 15 are in close contact with the bucket wall and scrape off the dried sludge as the rotating bucket 8 rotates.

[0031] It should be noted that the first fixing block 9 and the second fixing block 13 are used to install the first slide rail 10 and the second slide rail 14. The first slide rail 10 and the second slide rail 14 provide a linear sliding path for the sludge smear 11 and the sludge scraper 15, so that the sludge smear 11 and the sludge scraper 15 can extend and retract radially to adapt to the application requirements of different sludge thicknesses. The first spring 12 provides elastic restoring force for the two sludge smear 11, so that the sludge smear 11 automatically retracts inward when pushed by the unrestricted block 20, so as to avoid interfering with the operation of the sludge scraper 15. The second spring 16 keeps the sludge scraper 15 in an inward retracted state when the electric push rod 19 is not pushed, so as to avoid interfering with the operation of the sludge smear 11, and at the same time, it enables the sludge scraper 15 to have automatic restoring and elastic clamping functions.

[0032] Specifically, both smearing blades 11 extend from the outside to the inside of the rotating barrel 8, the first spring 12 is disposed inside the rotating barrel 8, and both scraper blades 15 extend from the outside to the inside of the rotating barrel 8.

[0033] Specifically, a protective barrel 21 is fixedly installed at the bottom of the mud mixing barrel 6, the motor 7 is located inside the protective barrel 21, a first circular slide rail 22 is fixedly installed on the outer wall of the protective barrel 21, positioning rods 23 are fixedly installed on the top of the two first fixing blocks 9, and the ends of the two positioning rods 23 away from the two first fixing blocks 9 are slidably connected to the inside of the first circular slide rail 22. A second circular slide rail 24 is fixedly installed on the top of the support frame, and support rods 25 are fixedly installed on the bottom of the two second fixing blocks 13, and the ends of the two support rods 25 away from the two second fixing blocks 13 are slidably connected to the inside of the second circular slide rail 24.

[0034] Among them, the protective bucket 21 protects the motor 7 from sludge and high-temperature steam, ensuring that the motor operates stably in a clean environment. At the same time, it serves as the mounting base for the first circular slide rail 22. The first circular slide rail 22 and the positioning rod 23 ensure that the sludge scraper 11 moves strictly along the set circumferential trajectory when rotating, eliminating radial runout. The second circular slide rail 24 and the support rod 25 ensure that the sludge scraper 15 moves strictly along the set circumferential trajectory when rotating, eliminating radial runout.

[0035] Specifically, the top annular heating plate 17 is disposed on the outside of the smearing plate 11 and the scraper plate 15, and the bottom annular heating plate 17 is disposed at the bottom of the smearing plate 11 and the scraper plate 15.

[0036] It should be noted that the two top annular heating plates 17 heat up rapidly first to dry the falling sludge, while the two bottom annular heating plates 17 are used to intercept and dry the residual sludge that slides down from the top two annular heating plates 17 and is not completely dehydrated.

[0037] Please see Figures 1 to 3In this embodiment, the stirring assembly 2 includes a first gear 26 fixedly connected to the surface of the rotating shaft, a rotating rod 27 rotatably mounted on the bottom wall of the protective barrel 21, a second gear 28 fixedly mounted on the surface of the rotating rod 27, the first gear 26 and the second gear 28 meshing with each other, a third gear 29 fixedly mounted on the top of the rotating rod 27, a spiral stirring shaft 30 rotatably mounted on the bottom wall of the mud stirring barrel 6, a fourth gear 31 fixedly mounted on the bottom surface of the spiral stirring shaft 30, and the third gear 29 and the fourth gear 31 meshing with each other.

[0038] When the motor 7 drives the rotating shaft to rotate, the rotating rod 27 is driven to rotate through the meshing transmission of the first gear 26 and the second gear 28, and then the fourth gear 31 is driven to rotate by the third gear 29, so that the spiral stirring shaft 30 rotates in the mud mixing bucket 6.

[0039] Specifically, the rotating rod 27 extends from the inside of the protective barrel 21 to the inside of the mud mixing barrel 6, a guide plate 32 is fixedly installed on the surface of the spiral stirring shaft 30, a second support rod 33 is fixedly installed on the inner wall of the mud mixing barrel 6, the top of the spiral stirring shaft 30 is rotatably connected to the inside of the second support rod 33, and the third gear 29 and the fourth gear 31 are both located at the bottom of the guide plate 32.

[0040] The guide plate 32 pushes the evenly mixed sludge obliquely along the plate surface to the sludge conveying plate 34, preventing the material from accumulating at the bottom of the mixing tank 6.

[0041] Specifically, the bottom of the mud mixing bucket 6 is provided with an annular groove, and a mud conveying plate 34 is connected to the annular groove. Four support legs 35 are fixedly installed at the bottom of the working bucket 1.

[0042] The sludge conveying plate 34 directs the uniformly mixed sludge to the surface of the annular heating plate 17. Its tilt design ensures that the sludge slides smoothly and leaves no residue. The support leg 35 provides stable support for the working bucket 1.

[0043] The working principle of the above embodiments is as follows:

[0044] First, the sludge enters the mixing tank 6 through the sludge conveying pipe 4. The motor 7 drives the rotating shaft to rotate the first gear 26, which in turn drives the second gear 28 and the rotating rod 27 to rotate, which in turn drives the third gear 29 to rotate. Through the meshing transmission of the third gear 29 and the fourth gear 31, the spiral stirring shaft 30 is driven to rotate inside the mixing tank 6 to achieve uniform mixing of the sludge. The mixed sludge falls onto the surface of the annular heating plate 17 through the sludge conveying plate 34. The annular heating plate 17 heats up rapidly. At this time, the motor 7 synchronously drives the rotating tank 8 to rotate. The electric push rod 19 rises and pushes the limit block 20 to open the sludge spreading plate 11, so that the two sludge spreading plates 11 evenly spread the sludge into a thin layer on the annular heating plate 17 for drying. After drying, the electric push rod 19 descends to reset the sludge spreading plate 11. The electric push rod 19 descends between the two scraper plates 15, opening the two scraper plates 15 and making them close to the tank wall. Thus, as the rotating tank 8 continues to rotate, the scraper plates 15 scrape off the dried sludge, which is finally discharged through the sludge discharge pipe 5.

[0045] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0046] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thin-layer sludge dryer, comprising a working drum (1), characterized in that: The working barrel (1) is provided with a stirring component (2) on the inner top wall, a drying component (3) is provided on the inner wall of the working barrel (1), a mud conveying pipe (4) is connected to the top of the working barrel (1), a mud discharge pipe (5) is connected to the bottom of the working barrel (1), and a mud stirring barrel (6) is fixedly installed on the inner top wall of the working barrel (1). The drying component (3) includes a motor (7) fixedly connected to the top of the mixing bucket (6). A rotating shaft is fixedly installed at the output end of the motor (7). A rotating bucket (8) is fixedly installed at the end of the rotating shaft away from the motor (7). First fixing blocks (9) are fixedly installed on the top outer walls of both sides of the rotating bucket (8). First slide rails (10) are fixedly installed at the bottom of the two first fixing blocks (9). Sliding mud-scraping plates (11) are slidably connected inside the two first slide rails (10). First springs (12) are fixedly installed on opposite sides of the two mud-scraping plates (11). The rotating bucket (8) is positioned at the front and rear. A second fixing block (13) is fixedly installed on the bottom outer wall of both sides. A second slide rail (14) is fixedly installed on the top of each of the two second fixing blocks (13). A scraper (15) is slidably connected inside each of the two second slide rails (14). A second spring (16) is fixedly installed on the front and rear outer walls of the rotating bucket (8). The ends of the two second springs (16) away from the rotating bucket (8) are fixedly connected to the outer walls of the two scrapers (15). Two annular heating plates (17) are fixedly installed on the inner wall of the working bucket (1). A pushing component (18) is provided on the bottom wall of the working bucket (1).

2. The thin-layer sludge dryer according to claim 1, characterized in that: The pushing assembly (18) includes a support frame that is fixedly connected to the bottom wall of the working barrel (1). An electric push rod (19) is fixedly installed on the top of the support frame. A limit block (20) is fixedly installed on the telescopic end of the electric push rod (19). The limit block (20) is located inside the rotating barrel (8).

3. The thin-layer sludge dryer according to claim 1, characterized in that: Both of the smearing blades (11) extend from the outside to the inside of the rotating barrel (8), the first spring (12) is disposed inside the rotating barrel (8), and both of the scraper blades (15) extend from the outside to the inside of the rotating barrel (8).

4. A thin-layer sludge dryer according to claim 2, characterized in that: The bottom of the mud-stirring bucket (6) is fixedly installed with a protective bucket (21), the motor (7) is located inside the protective bucket (21), the outer wall of the protective bucket (21) is fixedly installed with a first circular slide rail (22), the top of the two first fixed blocks (9) is fixedly installed with positioning rods (23), the ends of the two positioning rods (23) away from the two first fixed blocks (9) are slidably connected to the inside of the first circular slide rail (22), the top of the support frame is fixedly installed with a second circular slide rail (24), the bottom of the two second fixed blocks (13) is fixedly installed with support rods (25), the ends of the two support rods (25) away from the two second fixed blocks (13) are slidably connected to the inside of the second circular slide rail (24).

5. A thin-layer sludge dryer according to claim 1, characterized in that: The top annular heating plate (17) is located on the outside of the trowel plate (11) and the scraper plate (15), and the bottom annular heating plate (17) is located at the bottom of the trowel plate (11) and the scraper plate (15).

6. A thin-layer sludge dryer according to claim 4, characterized in that: The stirring assembly (2) includes a first gear (26) fixedly connected to the surface of the rotating shaft. A rotating rod (27) is rotatably installed on the bottom wall of the inner wall of the protective barrel (21). A second gear (28) is fixedly installed on the surface of the rotating rod (27). The first gear (26) and the second gear (28) mesh with each other. A third gear (29) is fixedly installed on the top of the rotating rod (27). A spiral stirring shaft (30) is rotatably installed on the bottom wall of the mud stirring barrel (6). A fourth gear (31) is fixedly installed on the bottom surface of the spiral stirring shaft (30). The third gear (29) and the fourth gear (31) mesh with each other.

7. A thin-layer sludge dryer according to claim 6, characterized in that: The rotating rod (27) extends from the inside of the protective barrel (21) to the inside of the mud-stirring barrel (6). A guide plate (32) is fixedly installed on the surface of the spiral stirring shaft (30). A second support rod (33) is fixedly installed on the inner wall of the mud-stirring barrel (6). The top of the spiral stirring shaft (30) is rotatably connected to the inside of the second support rod (33). The third gear (29) and the fourth gear (31) are both located at the bottom of the guide plate (32).

8. A thin-layer sludge dryer according to claim 1, characterized in that: The bottom of the mud mixing bucket (6) is provided with an annular groove, and a mud conveying plate (34) is connected to the annular groove. The bottom of the working bucket (1) is fixedly equipped with four support legs (35).

Images