Primary sedimentation tank sludge recycling process for manufacturing bobbin paper

Abstract

The invention relates to the technical field of bobbin paper manufacturing, in particular to a primary sedimentation tank sludge recycling process for manufacturing bobbin paper.The primary sedimentation tank sludge recycling process comprises the following steps that S1, sludge and water are stirred and added into a cyclone desander through a feeding pipe, the cyclone desander separates gravel and muddy water through centrifugal force, the gravel is discharged through a sand discharging pipe, and the slurry is discharged through a sludge discharging pipe; and muddy water enters the upper chamber of the mixing barrel along the water outlet pipe. S2, adding a flocculating agent into the upper chamber, and stirring a mixture of the muddy water and the flocculating agent in the upper chamber by a lifting type stirring mechanism, so that fibers in the muddy water are flocculated. And S3, opening the switch assembly, introducing the mixture in the upper chamber into the lower chamber, then closing the switch assembly again, continuously adding the muddy water and the flocculating agent into the upper chamber, and meanwhile, driving the mud-water separation assembly to operate by the lifting type stirring mechanism through the transmission assembly so as to separate flocculent fibers in the mixture in the lower chamber from sewage. The device can rapidly extract fibers in sludge, and is low in energy consumption and high in efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of bobbin paper manufacturing, in particular to a primary sedimentation tank sludge recycling process for manufacturing bobbin paper. Background Art

[0002] Tube paper is mainly used in the production of cores and pipes, industrial pipes, mulch pipes, firework pipes, textile pipes, spiral pipes, pagoda pipes, parallel pipes, various paper corner protectors, cartons, honeycomb paperboards, etc. Tube paper is made from pulp, and when producing tube paper, the wastewater discharged is usually stored in the primary sedimentation tank, and the sludge is removed after the sludge settles. The sludge often contains a lot of crude fiber, and direct cleaning is likely to cause a waste of raw materials.

[0003] The technical solution disclosed in the Chinese patent with authorization announcement number CN213623789U compacts the sludge into small pieces to reduce the volume of papermaking sludge, making it convenient for storage, transportation and recycling of the sludge. By setting a pushing device, after the papermaking sludge is extruded and formed, the pushing rod is driven to push the formed sludge blocks onto the conveyor belt. During the transportation process, the heater above will dry the sludge to facilitate the later utilization of the sludge.

[0004] However, the device still has some shortcomings: the device does not screen the sludge, and the fibers in the sludge are still in the sludge, and need to be extracted again for subsequent use, which is time-consuming and labor-intensive. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the background technology and to propose a process for recycling sludge in a primary sedimentation tank for manufacturing bobbin paper.

[0006] The technical solution of the present invention: The present invention proposes a primary sedimentation tank sludge recycling process for manufacturing bobbin paper, comprising the following steps:

[0007] S1. Mix the sludge with water and add it into the cyclone desander through the feed pipe. The cyclone desander uses centrifugal force to separate the sand and gravel from the muddy water. The sand and gravel are discharged through the sand discharge pipe, and the muddy water enters the upper chamber of the mixing barrel along the outlet pipe.

[0008] S2. Add flocculant into the upper chamber, and the lifting stirring mechanism stirs the mixture of mud water and flocculant in the upper chamber to make the fibers in the mud water flocculate.

[0009] S3, the switch assembly is opened and closed again after the mixture in the upper chamber is introduced into the lower chamber, and the upper chamber continues to add muddy water and flocculant. At the same time, the lifting stirring mechanism drives the mud-water separation assembly to operate through the transmission assembly to separate the flocculent fibers in the mixture in the lower chamber from the sewage.

[0010] Preferably, a discharge pipe and a feeding hopper connected to the interior of the mixing barrel are provided on the mixing barrel. A partition is provided in the mixing barrel to separate the inner cavity of the mixing barrel into an upper chamber and a lower chamber. A feed pipe is provided at the input end of the cyclone desander, and two output ends of the cyclone desander are respectively connected to a sand discharge pipe and a water outlet pipe, and the other end of the water outlet pipe is connected to the upper chamber.

[0011] Preferably, the mixing barrel is connected to the frame, and the mud-water separation assembly and the cyclone desander are both connected to the frame.

[0012] Preferably, the switch assembly is arranged on the partition to control the on-off between the upper chamber and the lower chamber. The switch assembly includes a sealing plate and a hydraulic cylinder. An annular groove with a trapezoidal cross section is arranged on the side of the partition facing the upper chamber, a through hole connecting the annular groove and the lower chamber is arranged on the partition, and a guide tube connecting the through hole is arranged at the bottom of the partition. A slide groove is arranged in the partition to communicate with the through hole from the side, and the sealing plate is located in the slide groove and is slidably connected to its inner wall and the upper edge of the guide tube. The hydraulic cylinder is located in the slide groove, and the hydraulic cylinder drives the sealing plate to slide.

[0013] Preferably, the lifting stirring mechanism is located in the upper chamber and connected to the mixing barrel, and the lifting stirring mechanism includes a spline shaft, a scraper, a sleeve, a reciprocating screw, a motor and a movable plate. The spline shaft is rotatably connected to the upper cover and the partition of the mixing barrel, and the scraper is connected to the spline shaft, and the scraper is located in the annular groove and slidably connected to its inner wall. The bottom of the scraper is provided with a roller that rolls in contact with the bottom of the annular groove. The sleeve is sleeved on the outside of the spline shaft and slides along its radial direction, and a plurality of stirring paddles are provided on the sleeve. The reciprocating screw is coaxially connected to the top of the spline shaft, a bracket is provided on the mixing barrel, and the reciprocating screw is rotatably connected to the bracket. The motor is connected to the bracket, and the motor drives the reciprocating screw and the spline shaft to rotate. The movable plate is slidably connected to the bracket, and the movable plate is connected to the shuttle of the reciprocating screw. Two connecting rods are symmetrically arranged at the bottom of the movable plate, and the connecting rod passes through the upper cover of the mixing barrel and slides with it in the vertical direction. The bottom of the connecting rod is connected to the same ring, and the ring is sleeved on the outside of the sleeve and is coaxially rotatably connected with it.

[0014] Preferably, the input end of the mud-water separation component is connected to the interior of the lower chamber through the discharge pipe at the bottom of the mixing barrel. The mud-water separation component includes a sub-screen tube, a collecting hood and an auger. A feed hole and a discharge hole are arranged on the sub-screen tube, and the mouth of the discharge pipe is coated on the outside of the feed hole, and a fiber output pipe is arranged on the outside of the discharge hole. A plurality of filter holes are arranged on the sub-screen tube around its axis between the feed hole and the discharge hole. The collecting hood is sleeved on the outside of the sub-screen tube and a drainage channel is arranged between its inner wall and the outer wall of the sub-screen tube, and the collecting hood is connected to the mud output pipe. The auger is located in the sub-screen tube and is coaxially rotatably connected thereto.

[0015] Preferably, the transmission assembly is connected to the lifting stirring mechanism and the mud-water separation assembly to drive the mud-water separation assembly to operate when the lifting stirring mechanism is in operation. The transmission assembly includes a rotating shaft and a toothed belt. A bevel gear is respectively arranged on the rotating shaft and the mounting shaft of the auger, and the two bevel gears are meshed and connected. A large pulley is coaxially connected to the rotating shaft, and one end of the spline shaft extending into the lower chamber is coaxially connected to the small pulley, and an air guide hole connecting the lower chamber with the outside is arranged on the mixing barrel. The toothed belt passes through the air guide hole and is connected to the large pulley and the small pulley.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects:

[0017] By setting up a cyclone desander, the cyclone desander is used to remove impurities such as sand and gravel with a large specific gravity in the sludge, so that the impurity content in the mud water entering the upper chamber of the mixing barrel is reduced; by setting up a partition in the mixing barrel, the partition is used to divide the inner cavity of the mixing barrel into an upper chamber and a lower chamber, while the upper chamber mixes the mud water and flocculant, the mixture in the lower chamber is gradually discharged downward, this structure reduces the interval time between feeding and discharging, and improves work efficiency; by setting up a lifting stirring assembly, a group of motors are used to drive the stirring paddle to rotate and drive the stirring paddle to lift and reciprocate at the same time, thereby increasing the shear surface between the stirring paddle and the mixture, thereby improving the mixing efficiency of the mud water and the flocculant; by setting up a mud and water separation assembly, the mud and water separation assembly is linked with the lifting stirring assembly, which reduces the power consumption and also realizes the rapid separation and extraction of fibers from the mixed mud water. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A flowchart of an embodiment of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the present invention;

[0020] Figure 3 Schematic diagram of the internal structure of the mixing barrel;

[0021] Figure 4 It is a schematic diagram of the connection mechanism of various components on the partition;

[0022] Figure 5 It is a structural schematic diagram of a lifting stirring mechanism;

[0023] Figure 6 Schematic diagram of the internal structure of the mud-water separation component.

[0024] Reference numerals: 1, frame; 2, mixing barrel; 201, discharge pipe; 202, air guide hole; 3, hopper; 4, partition; 41, annular groove; 42, through hole; 43, slide; 5, guide pipe; 6, sealing plate; 7, hydraulic cylinder; 8, spline shaft; 9, scraper; 10, roller; 11, sleeve; 12, stirring paddle; 13, reciprocating screw rod; 131, shuttle; 14, bracket; 15 , motor; 16, movable plate; 17, ring; 18, sub-screening tube; 181, filter hole; 182, discharge hole; 183, fiber output pipe; 19, collecting cover; 20, mud output pipe; 21, auger; 22, rotating shaft; 23, bevel gear; 24, large pulley; 25, small pulley; 26, toothed belt; 27, cyclone desander; 28, feed pipe; 29, sand discharge pipe; 30, water outlet pipe. DETAILED DESCRIPTION

[0025] Embodiment 1

[0026] like Figure 2-Figure 6As shown, the present invention proposes a sludge recycling process for primary sedimentation tanks used for manufacturing bobbin paper, which is processed by a sludge separation and recycling device, and the sludge separation and recycling device includes a mixing barrel 2, a partition 4, a lifting stirring mechanism, a mud-water separation component, a transmission component and a cyclone desander 27. The mixing barrel 2 is connected to the frame 1, and the mixing barrel 2 is provided with a discharge pipe 201 and a feeding hopper 3 connected with the inside thereof. The partition 4 is arranged in the mixing barrel 2 to separate the inner cavity of the mixing barrel 2 into an upper chamber and a lower chamber, and a circular groove 41 with a trapezoidal cross section is arranged on the side of the partition 4 facing the upper chamber, and a through hole 42 connecting the circular groove 41 and the lower chamber is arranged on the partition 4, and a guide pipe 5 connecting the through hole 42 is arranged at the bottom of the partition 4. A chute 43 connected with the through hole 42 from the side thereof is arranged in the partition 4, and a sealing plate 6 is located in the chute 43 and is slidably connected with the inner wall thereof and the upper edge of the guide pipe 5. The hydraulic cylinder 7 is located in the slide groove 43, and the hydraulic cylinder 7 drives the sealing plate 6 to slide. The lifting stirring mechanism is located in the upper chamber and connected to the mixing barrel 2. The lifting stirring mechanism includes a spline shaft 8, a scraper 9, a sleeve 11, a reciprocating screw 13, a motor 15 and a movable plate 16. The spline shaft 8 is rotatably connected to the upper cover of the mixing barrel 2 and the partition 4, and the scraper 9 is connected to the spline shaft 8, and the scraper 9 is located in the annular groove 41 and is slidably connected to its inner wall. The bottom of the scraper 9 is provided with a roller 10 that is in rolling contact with the bottom of the annular groove 41. While the roller 10 rotates around the axis of the spline shaft 8 with the scraper 9, it rolls at the bottom of the annular groove 41, thereby crushing the large-sized impurities that are not completely separated in the mixture in the upper chamber to avoid affecting the subsequent separation process, thereby improving the purity of the fiber flocculent separated by the separation component. The sleeve 11 is sleeved on the outside of the spline shaft 8 and slides along its radial direction. A plurality of stirring paddles 12 are provided on the sleeve 11. The reciprocating screw 13 is coaxially connected to the top of the spline shaft 8, and a bracket 14 is provided on the mixing barrel 2, and the reciprocating screw 13 is rotatably connected to the bracket 14. The motor 15 is connected to the bracket 14, and the motor 15 drives the reciprocating screw 13 and the spline shaft 8 to rotate. The movable plate 16 is slidably connected to the bracket 14, and the movable plate 16 is connected to the shuttle 131 of the reciprocating screw 13. Two connecting rods are symmetrically arranged at the bottom of the movable plate 16, and the connecting rods penetrate the upper cover of the mixing barrel 2 and slide with it in the vertical direction. The bottom of the connecting rod is connected to the same ring 17, and the ring 17 is sleeved on the outside of the sleeve 11 and is coaxially rotatably connected with it. The mud and water separation assembly is connected to the frame 1, and the mud and water separation assembly includes a sub-screen pipe 18, a collecting cover 19 and an auger 21. A feed hole and a discharge hole 182 are arranged on the sub-screen pipe 18, and the pipe mouth of the discharge pipe 201 is covered on the outside of the feed hole, and a fiber output pipe 183 is arranged on the outside of the discharge hole 182. A plurality of filter holes 181 are arranged around the axis of the sub-screen pipe 18 between the feed hole and the discharge hole 182. The collecting cover 19 is sleeved on the outside of the sub-screen pipe 18 and a drainage channel is arranged between its inner wall and the outer wall of the sub-screen pipe 18. The collecting cover 19 is connected to the mud output pipe 20. The auger 21 is located in the sub-screen pipe 18 and is coaxially connected with it.The transmission assembly includes a rotating shaft 22 and a toothed belt 26. A bevel gear 23 is respectively arranged on the rotating shaft 22 and the mounting shaft of the auger 21, and the two bevel gears 23 are meshed and connected. A large pulley 24 is coaxially connected to the rotating shaft 22, and one end of the spline shaft 8 that penetrates into the lower chamber is coaxially connected to a small pulley 25, and an air guide hole 202 connecting the lower chamber with the outside is arranged on the mixing barrel 2. The air guide hole is convenient for maintaining the air pressure balance between the lower chamber and the outside, and is convenient for the mixture in the lower chamber to be discharged through the discharge pipe 201. The toothed belt 26 passes through the air guide hole 202 and is transmission-connected to the large pulley 24 and the small pulley 25. The transmission assembly is transmission-connected to the lifting stirring mechanism and the mud-water separation assembly to drive the mud-water separation assembly to operate when the lifting stirring mechanism is in operation. The cyclone desanders 27 are connected to the frame 1, a feed pipe 28 is arranged at the input end of the cyclone desanders 27, two output ends of the cyclone desanders 27 are respectively connected to the sand discharge pipe 29 and the water outlet pipe 30, and the other end of the water outlet pipe 30 is connected to the upper chamber.

[0027] In this embodiment, the sludge is first diluted by adding water, and then the diluted sludge is added into the cyclone desander 27 along the feed pipe 28. The cyclone desander 27 discharges the particulate impurities with a large specific gravity along the sand discharge pipe 29, while water and fibers with a small specific gravity enter the upper chamber of the mixing barrel 2 along the outlet pipe 30. When the mud water in the upper chamber reaches a certain amount, the grouting is suspended, and then the flocculant is added into the upper chamber along the feeding hopper 3, and the motor 15 is started. The motor 15 drives the reciprocating screw 13 and the spline shaft 8 to rotate coaxially, and the spline shaft 8 drives the scraper 9 and the stirring paddle 12 to rotate. The reciprocating screw 13 drives the movable plate 16 to reciprocate and rise and fall when it rotates, and then drives the sleeve 11 and the stirring paddle 12 to reciprocate and rise and fall through the connecting rod and the ring 17, so that the shear surface between the stirring paddle 12 and the mixed mud water is increased, thereby improving the mixing efficiency of the flocculant and the mud water. Then The hydraulic cylinder 7 is started, and the hydraulic cylinder 7 pulls the sealing plate 6 to retract and open the through hole 42. After the mixture in the upper chamber enters the lower chamber, the sealing plate 6 is reset, and then the cyclone desander 27 continues to inject grout into the upper chamber, while the mixture in the lower chamber enters the sub-screen pipe 18 along the discharge pipe 201. The rotation of the spline shaft 8 drives the small pulley 25 to rotate, and then drives the large pulley 24 and the rotating shaft 22 to rotate through the toothed belt 26, and then drives the auger 21 to rotate through the bevel gear 23. The auger will slowly slide the mixture entering the sub-screen pipe 18 toward the discharge hole 182. When the mixture passes through the filter hole 181, the sewage seeps out, and the fiber flocs move toward the discharge hole 182 under the propulsion of the auger 21 and are finally discharged from the fiber output pipe 183, while the sewage is discharged along the mud output pipe 20 at the bottom of the collecting cover 19.

[0028] Embodiment 2

[0029] like Figure 6As shown, a sludge separation and reuse device proposed by the present invention, compared with the first embodiment, a spring connected to its end cover is provided at one end of the sub-screen tube 18 away from the discharge pipe 201, and the other end of the spring is connected to a tensioning plate, and the tensioning plate is slidably connected to the inner wall of the sub-screen tube 18.

[0030] In this embodiment, a spring and a tensioning plate cooperate with the auger 21 to squeeze and remove water from the mixture in the sub-screen tube 18, so as to prevent the sewage from being discharged along the discharge hole 182 along with the fiber flocs under the drive of the auger 21.

[0031] Embodiment 3

[0032] like Figure 1-Figure 6 As shown, the present invention proposes a primary sedimentation tank sludge recycling process for manufacturing bobbin paper, comprising the following steps:

[0033] S1. The sludge is mixed with water and fed into the cyclone desander 27 through the feed pipe 28. The cyclone desander 27 uses centrifugal force to separate the sand and gravel from the muddy water. The sand and gravel are discharged through the sand discharge pipe 29, and the muddy water enters the upper chamber of the mixing barrel 2 along the outlet pipe 30.

[0034] S2. Add flocculant into the upper chamber, and the lifting stirring mechanism stirs the mixture of mud water and flocculant in the upper chamber to make the fibers in the mud water flocculate.

[0035] S3, the switch assembly is opened and closed again after the mixture in the upper chamber is introduced into the lower chamber, and the upper chamber continues to add muddy water and flocculant. At the same time, the lifting stirring mechanism drives the mud-water separation assembly to operate through the transmission assembly to separate the flocculent fibers in the mixture in the lower chamber from the sewage.

[0036] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A process for recycling sludge from a primary sedimentation tank for manufacturing tube paper, characterized in that: The following steps are involved: S1. The sludge is mixed with water and fed into the cyclone desander (27) through the feed pipe (28). The cyclone desander (27) uses centrifugal force to separate the sand and gravel from the muddy water. The sand and gravel are discharged through the sand discharge pipe (29), and the muddy water enters the upper chamber of the mixing barrel (2) along the water outlet pipe (30). S2. Add flocculant into the upper chamber, and the lifting stirring mechanism stirs the mixture of mud water and flocculant in the upper chamber to make the fibers in the mud water flocculate. S3, the switch assembly is opened and closed again after the mixture in the upper chamber is introduced into the lower chamber, and the upper chamber continues to add muddy water and flocculant. At the same time, the lifting stirring mechanism drives the mud-water separation assembly to operate through the transmission assembly to separate the flocculent fibers in the mixture in the lower chamber from the sewage.

2. A process for recycling sludge from a primary sedimentation tank for manufacturing tube paper according to claim 1, characterized in that: A discharging pipe (201) and a feeding hopper (3) which are in communication with the interior of the mixing barrel (2) are arranged on the mixing barrel; a partition plate (4) is arranged inside the mixing barrel to separate the inner cavity of the mixing barrel (2) into an upper chamber and a lower chamber; a feeding pipe (28) is arranged at the input end of the cyclone desander (27); two output ends of the cyclone desander (27) are respectively in communication with a sand discharge pipe (29) and a water outlet pipe (30); the other end of the water outlet pipe (30) is in communication with the upper chamber.

3. A process for recycling sludge from a primary sedimentation tank for manufacturing tube paper according to claim 2, characterized in that: The mixing barrel (2) is connected to the frame (1), and the mud-water separation component and the cyclone desander (27) are both connected to the frame (1).

4. A process for recycling sludge from a primary sedimentation tank for manufacturing tube paper according to claim 2, characterized in that: The switch assembly is arranged on the partition (4) to control the on-off between the upper chamber and the lower chamber; the switch assembly comprises a sealing plate (6) and a hydraulic cylinder (7); an annular groove (41) with a trapezoidal cross section is arranged on the side of the partition (4) facing the upper chamber, a through hole (42) connecting the annular groove (41) and the lower chamber is arranged on the partition (4), and a guide tube (5) connecting the through hole (42) is arranged at the bottom of the partition (4); a sliding groove (43) connected to the through hole (42) from the side thereof is arranged in the partition (4), the sealing plate (6) is located in the sliding groove (43) and is slidably connected to the inner wall thereof and the upper edge of the guide tube (5); the hydraulic cylinder (7) is located in the sliding groove (43), and the hydraulic cylinder (7) drives the sealing plate (6) to slide.

5. A process for recycling sludge from a primary sedimentation tank for manufacturing tube paper according to claim 4, characterized in that: The lifting stirring mechanism is located in the upper chamber and connected to the mixing barrel (2), and comprises a spline shaft (8), a scraper (9), a sleeve (11), a reciprocating screw (13), a motor (15) and a movable plate (16); the spline shaft (8) is rotatably connected to the upper cover of the mixing barrel (2) and the partition (4); the scraper (9) is connected to the spline shaft (8), and the scraper (9) is located in the annular groove (41) and is slidably connected to the inner wall thereof; a roller (10) is provided at the bottom of the scraper (9) and is in rolling contact with the bottom of the annular groove (41); the sleeve (11) is sleeved on the outside of the spline shaft (8) and slides along the radial direction thereof, and a plurality of stirring paddles (12) are provided on the sleeve (11); the reciprocating screw (13) is rotatably connected to the upper cover of the mixing barrel (2) and the partition (4); the scraper (9) is connected to the spline shaft (8), and the scraper (9) is located in the annular groove (41) and is slidably connected to the inner wall thereof; a roller (10) is provided at the bottom of the scraper (9) and is in rolling contact with the bottom of the annular groove (41); the sleeve (11) is sleeved on the outside of the spline shaft (8) and slides along the radial direction thereof; a plurality of stirring paddles (12) are provided on the sleeve (11); 13) is coaxially connected to the top of the spline shaft (8), a bracket (14) is arranged on the mixing barrel (2), and the reciprocating screw rod (13) is rotatably connected to the bracket (14); a motor (15) is connected to the bracket (14), and the motor (15) drives the reciprocating screw rod (13) and the spline shaft (8) to rotate; a movable plate (16) is slidably connected to the bracket (14), the movable plate (16) is connected to the shuttle (131) of the reciprocating screw rod (13), two connecting rods are symmetrically arranged at the bottom of the movable plate (16), the connecting rods penetrate the upper cover of the mixing barrel (2) and slide with it in the vertical direction, and the bottom of the connecting rods is connected to the same circular ring (17), and the circular ring (17) is sleeved on the outside of the sleeve (11) and is coaxially rotatably connected with it.

6. A process for recycling sludge from a primary sedimentation tank for manufacturing tube paper according to claim 5, characterized in that: The input end of the mud-water separation component is connected to the interior of the lower chamber through a discharge pipe (201) at the bottom of the mixing barrel (2); the mud-water separation component comprises a sub-screen tube (18), a collecting cover (19) and an auger (21); a feed hole and a discharge hole (182) are arranged on the sub-screen tube (18); the pipe mouth of the discharge pipe (201) is covered on the outside of the feed hole, and a fiber output pipe (183) is arranged on the outside of the discharge hole (182); a plurality of filter holes (181) are arranged on the sub-screen tube (18) around its axis between the feed hole and the discharge hole (182); the collecting cover (19) is sleeved on the outside of the sub-screen tube (18) and a drainage channel is arranged between its inner wall and the outer wall of the sub-screen tube (18); the collecting cover (19) is connected to the mud output pipe (20); the auger (21) is located in the sub-screen tube (18) and is coaxially rotatably connected thereto.

7. A process for recycling sludge from a primary sedimentation tank for manufacturing tube paper according to claim 6, characterized in that: The transmission assembly is connected to the lifting stirring mechanism and the mud-water separation assembly so as to drive the mud-water separation assembly to operate when the lifting stirring mechanism is in operation; the transmission assembly comprises a rotating shaft (22) and a toothed belt (26); a bevel gear (23) is respectively arranged on the rotating shaft (22) and the mounting shaft of the auger (21); the two bevel gears (23) are meshedly connected; a large pulley (24) is coaxially connected to the rotating shaft (22); one end of the spline shaft (8) extending into the lower chamber is coaxially connected to the small pulley (25); and an air guide hole (202) connecting the lower chamber with the outside is arranged on the mixing barrel (2); the toothed belt (26) passes through the air guide hole (202) and is connected to the large pulley (24) and the small pulley (25).

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