A rotary mixing device for bentonite slurry

By using a hot air blower-driven rotary mixing device, the problem of bentonite adhesion during heating is solved through the design of the hot air blower and mixing components. This achieves uniform heating and thorough mixing, improves mixing efficiency, and reduces production costs.

CN117445176BActive Publication Date: 2026-07-17WUHU HENGJIE BENTONITE TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUHU HENGJIE BENTONITE TECH CO LTD
Filing Date
2023-10-11
Publication Date
2026-07-17

Smart Images

  • Figure CN117445176B_ABST
    Figure CN117445176B_ABST
Patent Text Reader

Abstract

This invention discloses a rotary mixing device for bentonite slurry, relating to the field of bentonite technology. It includes a working cylinder with a hot air blower at the bottom for heating the bentonite inside. A mixing assembly for mixing the bentonite is located inside the working cylinder, and a drive assembly for rotating the mixing assembly is also present. The two sides of the protrusion form a smooth curve structure with the inner wall of the working cylinder. Through the design of components such as connecting pipes, rotating bearings, drive rollers, mounting pipes, fixed seats, nozzles, and guide wheels, this invention achieves the function of using hot air to drive material mixing. The drive roller is connected to the hot air through the connecting pipe. The mixing blades move left and right during rotation, ensuring the bentonite is subjected to more sufficient force. This device achieves mixing operation without motor drive and effectively controls the drying degree of the material. The hot air dries the bentonite more evenly, preventing the bentonite from clumping on the inner wall of the cylinder, and more effectively achieving bentonite mixing.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of bentonite technology, specifically to a rotary mixing device for bentonite slurry. Background Technology

[0002] Bentonite is a non-metallic mineral with montmorillonite as its main mineral component. Due to its high moisture content, if bentonite is not dried during mixing, some of it will clump together, affecting the mixing effect. Furthermore, bentonite tends to adhere to the inner wall of the equipment during mixing, resulting in waste and increased production costs.

[0003] The existing technology has the following problems: In the prior art, Chinese patent publication number "CN210964751U" discloses a bentonite mixing device, including a mixing chamber. A heater is fixedly connected to the bottom of the mixing chamber, and a heat pipe is fixedly connected to the top surface of the heater. A positioning hole is provided on the outer surface of a fixing block, and a stirring fan blade is fixedly connected inside the positioning hole. After the heater starts to emit heat energy, the heat energy is transferred into the mixing chamber through the heat pipe at the top of the heater, simultaneously stirring and drying the bentonite inside the mixing chamber, effectively improving… Regarding work efficiency, the aforementioned patent can solve the problem of insufficient material mixing to a certain extent. However, in actual operation, heat pipe heating is used. Due to the high viscosity of bentonite, the conventional heat pipe heating and drying method causes the bentonite near the heat pipe to solidify too quickly, while the bentonite far from the heat pipe becomes too moist. This causes the bentonite to adhere to the inner wall of the cylinder and is not easy to remove. Over time, this can easily reduce the volume of the mixing chamber and exacerbate the blockage of the discharge port. Therefore, we propose a slurry bentonite rotary mixing device to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a rotary mixing device for bentonite slurry to solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: The present invention provides a rotary mixing device for bentonite slurry, comprising a working cylinder, a hot air blower for heating the bentonite inside the cylinder at its bottom, a mixing assembly for mixing the bentonite inside the working cylinder, a drive assembly for driving the mixing assembly to rotate inside the working cylinder, the bottom of the drive assembly being connected to the hot air blower, a support platform for stabilizing the drive assembly being formed around the top of the working cylinder's inner cavity, and multiple protrusions for adjusting the working state of the mixing assembly being fixedly connected to the inner wall of the working cylinder, the protrusions being evenly distributed around the axis of the working cylinder, and the two sides of the protrusions forming a smooth curve structure with the inner wall of the working cylinder, the drive assembly including a connecting pipe for connecting to the hot air blower, one end of the connecting pipe being fixedly connected to the output end of the hot air blower, and the other end of the connecting pipe extending through the bottom of the working cylinder into the cylinder, a rotating bearing for fixing a drive roller being sleeved at one end of the connecting pipe inside the working cylinder, and the drive roller being connected to the hot air blower through the connecting pipe.

[0006] Preferably, the bottom of the working cylinder is fixedly connected with multiple feet for stabilizing the overall device, and the upper and lower end faces of the working cylinder are provided with material inlets for bentonite to enter and exit, and the material inlets are threadedly connected with sealing caps for sealing the overall device.

[0007] Preferably, the outer ring wall of the rotating bearing has an outer ring groove, and a first rubber ring for sealing the connection between the connecting pipe and the rotating bearing is provided in the outer ring groove. The first rubber ring is fixedly connected to the connecting pipe by adhesion. The inner ring wall of the rotating bearing has an inner ring groove, and a second rubber ring for stabilizing the driving rolling is provided in the inner ring groove. The inner ring wall of the second rubber ring is fixedly connected to the driving roller by adhesion. The top of the driving roller is in contact with the sealing cover of the material inlet.

[0008] Preferably, a sleeve for stabilizing the drive roller is fixedly connected to the bottom of the closed cover. The drive roller is rotatably connected to the closed cover through the sleeve. The axes of the drive roller, the connecting pipe, and the working cylinder are coincident. The bottom of the drive roller has a hollow structure. The inner diameter area of ​​the drive roller is half that of the connecting pipe. Multiple mounting pipes are fixedly connected around the drive roller. The multiple mounting pipes are evenly distributed around the axis of the drive roller.

[0009] Preferably, a plurality of fixing seats are fixedly connected to the surface of the mounting tube, and the plurality of fixing seats are evenly distributed along the length of the mounting tube. A plurality of nozzles for hot gas exhaust are fixedly connected to the side of the fixing seat near the drive roller. The nozzles are evenly distributed along the edge of the fixing seat. The nozzles, fixing seats, mounting tube and drive roller are connected. The nozzles are at a 45-degree angle to the horizontal plane.

[0010] Preferably, the end of the mounting tube away from the drive roller is provided with a fixing groove for fixing the guide wheel. Connecting plates are fixedly connected to both sides of the fixing groove wall. Rotating rods for installing the guide wheel are fixedly connected to the end faces of the two connecting plates that are close to each other. The guide wheel is sleeved on the surface of the rotating rod and rotatably connected to it. The bottom of the guide wheel contacts the receiving platform on the inner wall of the working cylinder.

[0011] Preferably, the stirring assembly includes a mounting base for fixing multiple parts. The mounting base is disposed inside the working cylinder and fixedly connected to the drive roller on one side near the axis of the working cylinder. Multiple mounting bases are provided and are evenly distributed around the axis of the drive roller. Two mounting grooves for fixing a reset spring are provided on the side of the mounting base away from the drive roller. The two mounting grooves are symmetrically distributed along the axis of the mounting base.

[0012] Preferably, the mounting groove is provided with a connecting rod for fixing the stirring fan blades, one end of the return spring contacts the bottom of the mounting groove, the other end of the return spring contacts the connecting rod, the connecting rod is slidably connected to the wall of the mounting groove, and the mounting base has multiple limiting windows on both sides near the mounting groove for stabilizing the connecting rod.

[0013] Preferably, the plurality of limiting windows are evenly distributed around the axis of the mounting groove, the limiting windows are elliptical strip structures, and the connecting rod is fixedly connected with a plurality of limiting seats to prevent itself from detaching from the mounting base. The limiting seats are placed inside the limiting windows and are slidably connected to the inner wall of the limiting windows. The end of the connecting rod away from the mounting base is fixedly connected to the stirring fan blade.

[0014] Preferably, the angle between the stirring blade and the connecting rod is 120 degrees. The surface of the stirring blade is provided with multiple arc-shaped grooves for mixing bentonite. The arc-shaped grooves are evenly arranged along the width direction of the stirring blade. A top seat for contacting the protrusion is fixedly connected to the side of the stirring blade away from the connecting rod. The end of the top seat away from the stirring blade has an elliptical structure. The side of the top seat away from the stirring blade is slidably connected to the protrusion.

[0015] Compared with existing technologies, the above one or more technical solutions have the following beneficial effects: This invention incorporates a hot air blower. Through the design of components such as a connecting pipe, rotating bearing, drive roller, mounting pipe, fixed base, nozzle, and guide wheel, it achieves the function of using hot air to drive material stirring. The hot air blower delivers hot air into the working cylinder. The drive roller is connected to the hot air through the connecting pipe and stirs the material by rotating. Simultaneously, the design of components such as the nozzle and guide wheel enhances the discharge of hot air and the stability of the material flow. This device achieves stirring operation without motor drive, effectively controls the degree of material drying, and effectively prevents… The heating element prevents the bentonite from being over-dried, ensuring more even drying with hot air and preventing the bentonite from clumping on the inner wall of the cylinder. During the operation of the mixing assembly, the drive unit pushes the mixing blades closer to the drive roller as they rotate. The return spring design ensures that the blades return to their original position after passing the boss. The mixing blades move left and right during rotation, allowing the bentonite to be subjected to more sufficient force. Multiple arc-shaped grooves are formed on the surface of the mixing blades, which are used to mix the bentonite, achieving more thorough mixing and more effective mixing of the bentonite. Attached Figure Description

[0016] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the assembly structure of the stirring component and the working cylinder of the present invention;

[0019] Figure 3 This is a schematic diagram of the assembly structure of the rotating bearing and the drive roller of the present invention;

[0020] Figure 4 This is a schematic diagram of the assembly structure of the nozzle and the fixed pipe of the present invention;

[0021] Figure 5 This is a schematic diagram of the assembly structure of the guide wheel and the receiving platform of the present invention;

[0022] Figure 6 This is a schematic diagram of the internal structure of the working cylinder of the present invention;

[0023] Figure 7 This is a schematic diagram of the assembly structure of the stirring component and the boss of the present invention;

[0024] Figure 8 This is a schematic diagram of the assembly structure of the reset spring and the fixed base of the present invention.

[0025] In the diagram: 1. Working cylinder; 11. Standing foot; 12. Receiving platform; 13. Thrust; 14. Material inlet; 15. Sealing cover; 2. Hot air blower; 3. Drive assembly; 31. Connecting pipe; 33. Rotating bearing; 34. Outer ring groove; 35. First rubber ring; 36. Inner ring groove; 37. Second rubber ring; 38. Drive roller; 39. Mounting pipe; 391. Fixed seat; 392. Nozzle; 393. Fixed groove; 394. Connecting plate; 395. Rotating rod; 396. Guide wheel; 4. Mixing assembly; 41. Mounting seat; 42. Mounting groove; 43. Return spring; 44. Limiting window; 45. Connecting rod; 46. Limiting seat; 47. Mixing fan blade; 48. Arc groove; 49. Top seat. Detailed Implementation

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

[0027] Please see Figures 1-8 This invention provides a rotary mixing device for bentonite slurry, comprising a working cylinder 1, a hot air blower 2 for heating the bentonite inside the working cylinder 1 at the bottom, a mixing component 4 for mixing the bentonite inside the working cylinder 1, a drive component 3 for driving the mixing component 4 to rotate inside the working cylinder 1, multiple feet 11 for stabilizing the overall device fixedly connected to the bottom of the working cylinder 1, material inlets 14 for bentonite inlet and outlet openings on the upper and lower end faces of the working cylinder 1, and sealing caps 15 for sealing the overall device threadedly connected to the material inlets 14, the bottom of the drive component 3 communicating with the hot air blower 2, and receiving platforms 12 for stabilizing the drive component 3 opening around the top of the inner cavity of the working cylinder 1, and multiple bosses 13 for adjusting the working state of the mixing component 4 fixedly connected to the inner wall of the working cylinder 1, the bosses 13 being evenly distributed around the axis of the working cylinder 1, and the two sides of the bosses 13 forming a smooth curve structure with the inner wall of the working cylinder 1, so that when the mixing component 4 contacts the bosses 13, the mixing blades 47 can pass through the bosses 13 more smoothly.

[0028] To eliminate the need for a motor-driven mixing device and prevent the heating wire from excessively drying the bentonite, a connecting pipe 31 for connecting to the hot air blower 2 is provided in the drive assembly 3. One end of the connecting pipe 31 is fixedly connected to the output end of the hot air blower 2, and the other end of the connecting pipe 31 extends through the bottom of the working cylinder 1 into the cylinder. A rotating bearing 33 for fixing the drive roller 38 is sleeved on the end of the connecting pipe 31 inside the working cylinder 1. An outer ring groove 34 is formed on the outer ring wall of the rotating bearing 33, and a first rubber ring 35 for sealing the connection between the connecting pipe 31 and the rotating bearing 33 is provided in the outer ring groove 34. The first rubber ring 35 is fixedly connected to the connecting pipe 31 by adhesion. An inner ring groove 36 is formed on the inner ring wall of the rotating bearing 33, and a second rubber ring 36 for stabilizing the drive roller 3 is provided in the inner ring groove 36. 7. The inner ring wall of the second rubber ring 37 is fixedly connected to the drive roller 38 by adhesion. The top of the drive roller 38 contacts the sealing cover 15 of the material inlet 14. A sleeve for stabilizing the drive roller 38 is fixedly connected to the bottom of the sealing cover 15. The drive roller 38 is rotatably connected to the sealing cover 15 through the sleeve. The axes of the drive roller 38, the connecting pipe 31, and the working cylinder 1 are coincident. The bottom of the drive roller 38 is a hollow structure. The drive roller 38 is connected to the hot air blower 2 through the connecting pipe 31. The inner diameter area of ​​the drive roller 38 is half that of the connecting pipe 31. Multiple mounting pipes 39 are fixedly connected around the drive roller 38. The multiple mounting pipes 39 are evenly distributed around the axis of the drive roller 38. Multiple fixing seats 391 are fixedly connected to the surface of the mounting pipes 39. The multiple fixing seats 391 are evenly distributed along the length of the mounting pipes 39. The device has multiple nozzles 392 for hot air exhaust fixedly connected to the side of the fixed base 391 near the drive roller 38. The nozzles 392 are evenly distributed along the edge of the fixed base 391. The nozzles 392, fixed base 391, mounting tube 39 and drive roller 38 are connected. The nozzles 392 are at a 45-degree angle to the horizontal plane. The end of the mounting tube 39 away from the drive roller 38 has a fixing groove 393 for fixing guide wheels 396. Connecting plates 394 are fixedly connected to both sides of the groove wall of the fixing groove 393. Rotating rods 395 for installing guide wheels 396 are fixedly connected to the end faces of the two connecting plates 394 that are close to each other. The guide wheels 396 are sleeved on the surface of the rotating rods 395 and rotated with them. The bottom of the guide wheels 396 contacts the receiving platform 12 on the inner wall of the working cylinder 1. The device does not require an external motor. The connecting pipe 31 is connected to the hot air blower 2. One end of the connecting pipe 31 is fixedly connected to the output end of the hot air blower 2, and the other end extends into the working cylinder 1. The hot air blower 2 can deliver hot air into the working cylinder 1 through the connecting pipe 31. The connection between the connecting pipe 31 and the rotating bearing 33 is sealed by a rubber ring. The top of the drive roller 38 is rotatably connected to the sealing cover 15 through a sleeve, forming a stable drive device. The hollow structure of the drive roller 38 is connected to the hot air blower 2 through the connecting pipe 31. The bottom of the drive roller 38 is hollow, and its inner diameter area is half that of the connecting pipe 31. When hot air enters the interior of the drive roller 38, it is sprayed out through multiple nozzles 392. The nozzles 392 are at a 45-degree angle to the horizontal plane, and the hot air velocity increases due to the smaller diameter of the pipe.The generated hot air drives the material mixing. The nozzles 392 are evenly distributed along the edge of the fixed base 391, allowing hot air to be evenly discharged from the nozzles 392. This achieves the function of using hot air to drive material mixing and effectively prevents bentonite from clumping on the inner wall of the cylinder. Hot air is delivered to the working cylinder 1 by the hot air blower 2. This device achieves mixing operation without motor drive and effectively controls the degree of material drying, preventing the heating wire from over-drying the bentonite, and ensuring more uniform drying of the bentonite by the hot air.

[0029] To ensure more thorough mixing of the bentonite, the mixing assembly 4 includes mounting seats 41 for fixing multiple components. Each mounting seat 41 is located inside the working cylinder 1 and is fixedly connected to the drive roller 38 on its side closest to the axis of the working cylinder 1. Multiple mounting seats 41 are provided, evenly distributed around the axis of the drive roller 38. Two mounting grooves 42 for fixing return springs 43 are provided on the side of each mounting seat 41 away from the drive roller 38. These two mounting grooves 42 are symmetrically distributed along the axis of the mounting seat 41. A connecting rod 45 for fixing the mixing blades 47 is installed within each mounting groove 42. One end of the return spring 43 is connected to… The bottom of the mounting groove 42 contacts the rod 45, and the other end of the return spring 43 contacts the connecting rod 45. The connecting rod 45 is slidably connected to the wall of the mounting groove 42. Multiple limiting windows 44 for stabilizing the connecting rod 45 are provided on both sides of the mounting base 41 near the mounting groove 42. These limiting windows 44 are evenly distributed around the axis of the mounting groove 42 and are elliptical in shape. Multiple limiting seats 46 for preventing the connecting rod 45 from detaching from the mounting base 41 are fixedly connected around it. The limiting seats 46 are placed inside the limiting windows 44 and slidably connected to the inner wall of the limiting windows 44. The end of the connecting rod 45 furthest from the mounting base 41 is connected to the... The mixing blade 47 is fixedly connected, and the angle between the mixing blade 47 and the connecting rod 45 is 120 degrees. Multiple arc-shaped grooves 48 for mixing bentonite are formed on the surface of the mixing blade 47. These grooves are evenly arranged along the width of the mixing blade 47. A top seat 49 for contacting the boss 13 is fixedly connected to the side of the mixing blade 47 away from the connecting rod 45. The end of the top seat 49 away from the mixing blade 47 has an elliptical structure, and the side of the top seat 49 away from the mixing blade 47 is slidably connected to the boss 13. During the operation of the mixing assembly 4 driven by the driving component, the end of the connecting rod 45 away from the mounting base 41 is connected to the mixing... The fan blade 47 is fixedly connected, and the angle between the mixing fan blade 47 and the connecting rod 45 is 120 degrees, which allows the mixing fan blade 47 to pass more smoothly when it contacts the boss 13. When the mixing fan blade 47 rotates, the boss 13 pushes the fan blade closer to the drive roller 38. The design of the return spring 43 will make the fan blade return to its original position after passing the boss 13. During the mixing of bentonite, the mixing fan blade 47 will move left and right while rotating, so that the bentonite is subjected to more force. Multiple arc-shaped grooves 48 are opened on the surface of the mixing fan blade 47. These grooves are used to mix the bentonite, so as to achieve more thorough mixing of the bentonite.

[0030] Working principle

[0031] In actual use, the device does not require an external motor. The connecting pipe 31 is connected to the hot air blower 2. One end of the connecting pipe 31 is fixedly connected to the output end of the hot air blower 2, and the other end extends into the working cylinder 1. Hot air from the hot air blower 2 can be delivered into the working cylinder 1 through the connecting pipe 31. The connection between the connecting pipe 31 and the rotating bearing 33 is sealed by a rubber ring. The top of the drive roller 38 is rotatably connected to the sealing cover 15 via a sleeve, forming a stable drive device. The hollow structure of the drive roller 38 is connected to the hot air blower 2 through the connecting pipe 31. The bottom of the drive roller 38 is hollow, and its inner diameter area is half that of the connecting pipe 31. When hot air enters the drive roller 38, it is sprayed out through multiple nozzles 392. The nozzles 392 are at a 45-degree angle to the horizontal plane. As the diameter of the pipe decreases, the hot air speed increases, and the generated hot air can drive the material to stir. The nozzles 392 are evenly distributed along the edge of the fixed seat 391, so that the hot air can be evenly discharged from the nozzles 392. The bottom of the guide wheel 396 contacts the receiving platform 12 on the inner wall of the working cylinder 1, which plays a role in stabilizing the drive assembly 3.

[0032] This device achieves the function of using hot air to drive material mixing and effectively prevents the heating wire from over-drying the bentonite. The hot air dries the bentonite more evenly and prevents the bentonite from clumping on the inner wall of the cylinder. Hot air is delivered to the working cylinder 1 by the hot air blower 2. The drive roller 38 is connected to the hot air through the connecting pipe 31 and drives the material mixing by rotating. At the same time, the design of components such as the nozzle 392 and guide wheel 396 enhances the discharge of hot air and the stability of the material flow. This device realizes the mixing operation without the need for a motor and effectively controls the degree of drying of the material.

[0033] During the operation of the mixing assembly 4 driven by the driving component, the end of the connecting rod 45 away from the mounting base 41 is fixedly connected to the mixing blade 47. The angle between the mixing blade 47 and the connecting rod 45 is 120 degrees, which allows the mixing blade 47 to pass more smoothly when it contacts the boss 13. When the mixing blade 47 rotates, the boss 13 pushes the blade closer to the driving roller 38. The design of the return spring 43 will cause the blade to return to its original position after passing the boss 13. During the mixing of bentonite, the mixing blade 47 will move left and right while rotating, so that the bentonite is subjected to more force. The surface of the mixing blade 47 is provided with multiple arc-shaped grooves 48. These grooves are used to mix the bentonite, which realizes more thorough mixing of the bentonite and can more effectively achieve the mixing of bentonite.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A rotary mixing device for bentonite slurry, characterized in that, The device includes a working cylinder (1), a hot air blower (2) for heating bentonite inside the cylinder is provided at the bottom of the working cylinder (1), a stirring assembly (4) for mixing bentonite is provided inside the working cylinder (1), a drive assembly (3) for driving the stirring assembly (4) to rotate is built into the working cylinder (1), the bottom of the drive assembly (3) is connected to the hot air blower (2), a support platform (12) for stabilizing the drive assembly (3) is provided around the top of the inner cavity of the working cylinder (1), and a plurality of protrusions (13) for adjusting the working state of the stirring assembly (4) are fixedly connected to the inner wall of the working cylinder (1). (13) The protrusions (13) are evenly distributed around the axis of the working cylinder (1). The two sides of the protrusions (13) and the inner wall of the working cylinder (1) form a smooth curve structure. The drive assembly (3) includes a connecting pipe (31) for connecting the hot air blower (2). One end of the connecting pipe (31) is fixedly connected to the output end of the hot air blower (2). The other end of the connecting pipe (31) extends through the bottom of the working cylinder (1) into the cylinder. One end of the connecting pipe (31) inside the working cylinder (1) is fitted with a rotating bearing (33) for fixing the drive roller (38). The drive roller (38) is connected to the hot air blower (2) through the connecting pipe (31). The outer ring of the rotating bearing (33) has an outer ring groove (34), and a first rubber ring (35) for sealing the connection between the connecting pipe (31) and the rotating bearing (33) is provided in the outer ring groove (34). The first rubber ring (35) is fixedly connected to the connecting pipe (31) by adhesion. The inner ring wall of the rotating bearing (33) has an inner ring groove (36), and a second rubber ring (37) for stabilizing the driving rolling is provided in the inner ring groove (36). The inner ring wall of the second rubber ring (37) is fixedly connected to the driving roller (38) by adhesion. The top of the driving roller (38) is in contact with the closing cover (15) of the material port (14). The bottom of the closed cover (15) is fixedly connected to a sleeve for stabilizing the drive roller (38). The drive roller (38) is rotatably connected to the closed cover (15) through the sleeve. The axes of the drive roller (38), the connecting pipe (31) and the working cylinder (1) are coincident. The bottom of the drive roller (38) is a hollow structure. The inner diameter area of ​​the drive roller (38) is half that of the connecting pipe (31). Multiple mounting pipes (39) are fixedly connected around the drive roller (38). The multiple mounting pipes (39) are evenly distributed around the axis of the drive roller (38). Multiple fixing seats (391) are fixedly connected to the surface of the mounting tube (39). The multiple fixing seats (391) are evenly distributed along the length of the mounting tube (39). Multiple nozzles (392) for hot gas discharge are fixedly connected to the side of the fixing seat (391) near the drive roller (38). The nozzles (392) are evenly distributed along the edge of the fixing seat (391). The nozzles (392), fixing seats (391), mounting tube (39) and drive roller (38) are connected. The nozzles (392) are at a 45-degree angle to the horizontal plane.

2. The rotary mixing device for bentonite slurry according to claim 1, characterized in that, The bottom of the working cylinder (1) is fixedly connected with a number of feet (11) for stabilizing the overall device. The upper and lower end faces of the working cylinder (1) are provided with material inlets (14) for bentonite to enter and exit. The material inlets (14) are threadedly connected with a sealing cover (15) for sealing the overall device.

3. The rotary mixing device for bentonite slurry according to claim 1, characterized in that, The mounting tube (39) has a fixing groove (393) for fixing the guide wheel (396) at one end away from the drive roller (38). The fixing groove (393) has connecting plates (394) fixedly connected to both sides of the groove wall. The two connecting plates (394) are fixedly connected to the end faces of each other, and a rotating rod (395) for installing the guide wheel (396) is fixedly connected. The guide wheel (396) is sleeved on the surface of the rotating rod (395) and rotates therewith. The bottom of the guide wheel (396) contacts the receiving platform (12) on the inner wall of the working cylinder (1).

4. The rotary mixing device for bentonite slurry according to claim 1, characterized in that, The stirring assembly (4) includes a mounting base (41) for fixing multiple parts. The mounting base (41) is located inside the working cylinder (1) and is fixedly connected to the drive roller (38) on the side close to the axis of the working cylinder (1). Multiple mounting bases (41) are provided and are evenly distributed around the axis of the drive roller (38). Two mounting grooves (42) for fixing the reset spring (43) are opened on the side of the mounting base (41) away from the drive roller (38). The two mounting grooves (42) are symmetrically distributed along the axis of the mounting base (41).

5. The rotary mixing device for bentonite slurry according to claim 4, characterized in that, The mounting groove (42) is provided with a connecting rod (45) for fixing the stirring fan blade (47). One end of the reset spring (43) is in contact with the bottom of the mounting groove (42), and the other end of the reset spring (43) is in contact with the connecting rod (45). The connecting rod (45) is slidably connected to the wall of the mounting groove (42). The mounting base (41) is provided with multiple limiting windows (44) on both sides near the mounting groove (42) for stabilizing the connecting rod (45).

6. The rotary mixing device for bentonite slurry according to claim 5, characterized in that, Multiple limiting windows (44) are evenly distributed around the axis of the mounting groove (42). The limiting windows (44) are elliptical strip structures. Multiple limiting seats (46) for preventing themselves from detaching from the mounting base (41) are fixedly connected around the connecting rod (45). The limiting seats (46) are placed inside the limiting windows (44) and are slidably connected to the inner wall of the limiting windows (44). The end of the connecting rod (45) away from the mounting base (41) is fixedly connected to the stirring blade (47).

7. The rotary mixing device for bentonite slurry according to claim 6, characterized in that, The angle between the stirring blade (47) and the connecting rod (45) is 120 degrees. The surface of the stirring blade (47) is provided with multiple arc-shaped grooves (48) for mixing bentonite. The arc-shaped grooves (48) are evenly arranged along the width direction of the stirring blade (47). A top seat (49) for contacting the protrusion (13) is fixedly connected to the side of the stirring blade (47) away from the connecting rod (45). The end of the top seat (49) away from the stirring blade (47) is an elliptical structure. The side of the top seat (49) away from the stirring blade (47) is slidably connected to the protrusion (13).