Gypsum board stirring and mixing device and method

Abstract

The invention relates to the field of disc type stirrers, in particular to a gypsum board stirring and mixing device which comprises a stirring shell, a stirring disc, a centrifugal disc and a driving system, the stirring shell is provided with a disc-shaped stirring chamber, the stirring disc and the centrifugal disc are coaxially arranged in the stirring chamber, the centrifugal disc is arranged above the stirring disc, and the driving system is arranged above the stirring disc. The driving system is connected to the centrifugal disc and the stirring disc, so that the centrifugal disc and the stirring disc rotate respectively, the rotating speed of the centrifugal disc is larger than that of the stirring disc, the solid material inlet is formed above the centrifugal disc, the centrifugal disc is used for receiving falling solid materials, and the liquid material inlet surrounds the inner wall of the stirring chamber. A liquid material fed through the liquid material inlet flows downwards along the inner wall of the stirring chamber. According to the embodiment of the invention, the solid material is uniformly thrown through high-speed rotation of the centrifugal disc, and the solid material is ensured to be fully dispersed before entering a stirring area in combination with the water flow flowing downwards along the side wall of the stirring shell, so that the mixing uniformity is remarkably improved.

Description

Technical Field

[0001] The invention relates to the field of disc mixers, and in particular to a gypsum board stirring and mixing device and method. Background Art

[0002] The disc mixers currently on the market are mainly composed of a rotating stirring disc, which is usually installed in the center of the container and driven by an electric motor to rotate at a certain speed. During its operation, raw materials (such as solid materials) are put into the top of the stirring disc through the feeding port. As the stirring disc rotates, the raw materials are evenly distributed in the container. Through the action of the stirring teeth on the stirring disc, the solid materials are fully mixed with water or other liquids to form a uniform slurry.

[0003] In a conventional pan mixer, solid materials are put onto the mixing pan, and then the solid materials are scraped onto the working area of ​​the mixing teeth by a fixed scraper as the mixing pan rotates, making it difficult to evenly distribute the solid materials. Summary of the invention

[0004] The object of the present invention is to provide a gypsum board stirring and mixing device and method to solve the technical problem that the solid materials of the traditional pan mixer are difficult to be evenly distributed into the mixer.

[0005] In order to solve the above technical problems, the present invention specifically provides the following technical solutions: A gypsum board stirring and mixing device, comprising a stirring shell, a stirring disk, a centrifugal disk and a driving system; The stirring shell is fixedly connected to the frame, and the stirring shell has a disc-shaped stirring chamber, the stirring disc and the centrifugal disc are coaxially arranged inside the stirring chamber, and the centrifugal disc is arranged above the stirring disc; The driving system is connected to the centrifugal disk and the stirring disk, so that the centrifugal disk and the stirring disk rotate respectively, and the rotation speed of the centrifugal disk is greater than the rotation speed of the stirring disk; A solid material inlet and a liquid material inlet are provided on the top of the stirring shell. The solid material inlet is provided above the centrifugal disk. The centrifugal disk is used to receive the fallen solid material and evenly scatter the solid material to all sides through its own rotation. The liquid material inlet is provided around the inner wall of the stirring chamber. The liquid material introduced through the liquid material inlet flows downward along the inner wall of the stirring chamber, flushes the scattered solid material between the stirring disk and the stirring chamber, and realizes uniform mixing through the rotation of the stirring disk.

[0006] Furthermore, a liquid collecting chamber is arranged at the top of the stirring shell and surrounds the inner wall of the stirring chamber. The liquid collecting chamber is in a circular ring shape and is connected to a liquid source through a liquid inlet pipe. An overflow port close to the inner wall of the stirring chamber is arranged at the highest point of the liquid collecting chamber. The liquid source puts liquid material into the interior of the liquid collecting chamber through the liquid inlet pipe. The liquid material overflows after the liquid level exceeds the overflow port, and the overflowed liquid material flows downward along the inner wall of the stirring chamber.

[0007] Furthermore, a plurality of drainage holes connected to the stirring chamber are provided at the lowest point of the liquid collecting chamber, and the flux of the drainage holes is smaller than the flux of the liquid inlet pipe, so that the input speed of the liquid material through the liquid inlet pipe is greater than the output speed of the liquid material through the drainage holes.

[0008] Furthermore, the solid material inlet is arranged directly above the centrifugal disk in the axial direction.

[0009] Further, the drive system includes a motor, a high-speed shaft, a speed reducer and a low-speed shaft; Among them, the motor and the reducer are fixedly connected to the frame, the main shaft of the motor, the high-speed shaft, the input shaft of the reducer, the output shaft of the reducer and the low-speed shaft are coaxially connected in sequence, and the input shaft, the output shaft and the low-speed shaft are all provided with through holes that are gap-matched with the high-speed shaft, the stirring disk is sleeved on the outside of the low-speed shaft, the stirring disk is drivingly connected to the low-speed shaft, the centrifugal disk is installed on the top of the high-speed shaft, and the centrifugal disk is drivingly connected to the high-speed shaft.

[0010] Furthermore, the reducer also includes: a reduction housing and a gear transmission mechanism, the input shaft and the output shaft are coaxially arranged, and the input shaft and the output shaft are respectively rotatably connected to the reduction housing, and the output shaft and the input shaft are connected through the gear transmission mechanism.

[0011] Further, the gear transmission mechanism includes a first gear coaxially connected to the input shaft, a second gear meshed with the first gear, a third gear coaxially connected to the second gear, and a fourth gear meshed with the third gear and coaxially connected to the output shaft, the number of teeth of the first gear is smaller than the number of teeth of the second gear, and the number of teeth of the third gear is smaller than the number of teeth of the fourth gear.

[0012] Furthermore, the high-speed shaft is connected to a first flange at one end close to the motor, the input shaft of the reducer is connected to a second flange, the output shaft of the reducer is connected to a third flange, and the low-speed shaft is connected to a fourth flange at one end close to the reducer. The first flange and the second flange are fixedly connected, and the third flange and the fourth flange are fixedly connected.

[0013] Further, the centrifugal disc comprises a rotating disc and a rotating rod, the rotating rod is coaxially arranged below the rotating disc, a first threaded hole extending axially upward is formed on the bottom wall of the rotating rod, a threaded column is coaxially connected to the top end of the high-speed shaft, and the threaded column is connected to the first threaded hole; A second threaded hole extending axially upward is formed on the bottom wall of the first threaded hole, the diameter of the second threaded hole is relatively smaller than the diameter of the first threaded hole, and the spiral directions of the first threaded hole and the second threaded hole are opposite; The high-speed shaft is provided with a through hole axially penetrating the high-speed shaft and the threaded column, a bolt is inserted into the through hole, the head of the bolt abuts against the bottom end of the high-speed shaft, and the rod of the bolt passes through the high-speed shaft to connect to the second threaded hole.

[0014] A gypsum board stirring and mixing method, the gypsum board stirring and mixing method is performed using a gypsum board stirring and mixing device, and the gypsum board stirring and mixing method comprises the following steps; Step 1: Add raw materials: Add solid materials to the top of the centrifugal disc through the solid material inlet, and at the same time, add liquid materials to the mixing chamber through the liquid material inlet, so that the liquid materials flow downward along the inner wall of the mixing chamber; Step 2: Disperse the solid materials: rotate the centrifugal disc at a higher speed than the stirring disc, and use the centrifugal force to evenly spread the solid materials to the edge area of ​​the stirring chamber; Step 3: Mixing and stirring: The stirring disc is rotated at a relatively low speed, and the stirring teeth on the stirring disc shear and stir the solid materials thrown to the edge and the liquid materials flowing down; Step 4: Discharge the mixture: After reaching the predetermined stirring time, discharge the slurry.

[0015] Compared with the prior art, this application has the following beneficial effects: The embodiment of the present invention evenly throws the solid materials through the high-speed rotation of the centrifugal disk, and combines the water flow flowing downward along the side wall of the mixing shell to ensure that the solid materials are fully dispersed before entering the mixing area, thereby significantly improving the uniformity of mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] Figure 1 A top view of an embodiment of the present invention; Figure 2 for Figure 1 Cross-sectional view in the AA direction; Figure 3 for Figure 2 A local enlarged view of point B; Figure 4 is a three-dimensional diagram of a driving system and a stirring plate according to an embodiment of the present invention; Figure 5 is a three-dimensional diagram of a driving system according to an embodiment of the present invention; Figure 6 It is a front view of a reducer, a high-speed shaft and a low-speed shaft according to an embodiment of the present invention; Figure 7 for Figure 6 The cross-sectional view in CC direction; The numbers in the figure represent the following: 2-mixing shell; 21-mixing chamber; 22-solid material inlet; 23-liquid material inlet; 24-discharge port; 25-liquid collecting chamber; 251-liquid inlet pipe; 252-overflow port; 253-drainage hole; 3-mixing plate; 31-mixing teeth; 32-seal; 4-centrifugal plate; 41-rotating plate; 42-rotating rod; 421-first threaded hole; 422-second threaded hole; 43-bolt; 5-motor; 6-high-speed shaft; 61-first flange; 62-threaded column; 63-first bearing; 7-reducer; 71-reduction housing; 72-input shaft; 721-second flange; 73-output shaft; 731-third flange; 74-first gear; 75-second gear; 76-third gear; 77-fourth gear; 8-low-speed shaft; 81-fourth flange; 82-second bearing; 83-pressure plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In view of the shortcomings of the existing stirring disk mixer in terms of mixing uniformity and efficiency, the present invention designs an improved gypsum board stirring and mixing device, the specific structure and working principle of which are described as follows.

[0020] refer to Figure 1 , Figure 2 The gypsum board stirring and mixing device includes: a stirring shell 2, a stirring disk 3, a centrifugal disk 4 and a driving system.

[0021] The stirring shell 2 is fixedly connected to the frame, and has a flat disc-shaped stirring chamber 21. The stirring disk 3 and the centrifugal disk 4 are arranged inside the stirring chamber 21, and the centrifugal disk 4 is arranged above the stirring disk 3. The centrifugal disk 4, the stirring disk 3 and the stirring chamber 21 are coaxially arranged.

[0022] The driving system is connected to the centrifugal disk 4 and the stirring disk 3 , so that the centrifugal disk 4 and the stirring disk 3 rotate respectively, and the rotation speed of the centrifugal disk 4 is greater than the rotation speed of the stirring disk 3 .

[0023] A solid material inlet 22 and a liquid material inlet 23 are provided on the top of the mixing shell 2, which are used to put in solid materials and liquid materials respectively.

[0024] The solid material inlet 22 is arranged above the centrifugal disc 4. The centrifugal disc 4 is used to receive the fallen solid materials and evenly scatter the solid materials around by its own high-speed rotation.

[0025] The liquid material inlet 23 is arranged around the inner wall of the stirring chamber 21. The liquid material introduced through the liquid material inlet 23 flows downward along the inner wall of the stirring chamber 21, flushing the scattered solid material to between the stirring disk 3 and the stirring chamber 21. The solid material and the liquid material are stirred by the stirring disk 3 to achieve uniform mixing.

[0026] refer to Figure 2 A discharge port 24 is provided at the bottom of the stirring shell 2, and a discharge valve (not shown in the figure) is installed at the discharge port 24.

[0027] refer to Figure 3 , Figure 4 A stirring tooth 31 is installed on the edge of the stirring disk 3, and the stirring tooth 31 is used to shear and stir the material. A seal 32 is arranged between the bottom of the stirring disk 3 and the bottom wall of the stirring chamber 21, and the seal 32 is used to prevent the material from approaching the driving system.

[0028] The gypsum board mixing method comprises the following steps: Step 1: Adding raw materials: Add solid materials to the top of the centrifugal disc 4 through the solid material inlet, and at the same time, add liquid materials to the mixing chamber 21 through the liquid material inlet, so that the liquid materials flow downward along the inner wall of the mixing chamber 21; Step 2: Dispersing the solid materials: rotating the centrifugal disc 4 at a higher speed than the stirring disc, and using the centrifugal force to evenly sprinkle the solid materials to the edge area of ​​the stirring chamber 21; Step 3: Mixing and stirring: the stirring disk 3 is rotated at a relatively low speed, and the stirring disk 3 shears and stirs the solid materials thrown to the edge and the liquid materials flowing down; Step 4: Discharging the mixture: After reaching a predetermined stirring time, the discharge valve is opened to discharge the slurry through the discharge port 24 .

[0029] The advantages of the above embodiment are: 1. Improve the dispersion speed of solid materials: The solid materials are evenly thrown through the high-speed rotation of the centrifugal disk 4, and combined with the water flow flowing downward along the side wall of the mixing shell 2, it is ensured that the solid materials are fully dispersed before entering the mixing area, which significantly improves the uniformity of mixing.

[0030] 2. Reducing the rotation speed of the stirring disk 3: Reducing the rotation speed of the stirring disk 3 can reduce excessive shearing and local high-speed flow of materials, and prevent materials from being ejected from the stirring area or generating an uneven mixing area.

[0031] 3. Elimination of scrapers and wear-resistant plates: There is no need to design a scraper to scrape the solid materials from above the stirring disk 3. At the same time, the wear-resistant plate installed between the stirring disk 3 and the scraper is also eliminated, which reduces the kinetic energy loss during the rotation of the stirring disk 3 and reduces the production cost of the equipment.

[0032] Furthermore, since the conventional liquid material inlet 23 is a circular hole, the technical effect of the liquid material introduced through the liquid material inlet 23 flowing downward along the inner wall of the stirring chamber 21 cannot be achieved. Therefore, an example is provided below to achieve this technical effect.

[0033] refer to Figure 3 A liquid collecting chamber 25 is provided at the top of the stirring shell 2 and surrounds the inner wall of the stirring chamber 21. The liquid collecting chamber 25 is in a circular shape and is connected to a liquid source via a liquid inlet pipe 251. An overflow port 252 close to the inner wall of the stirring chamber 21 is provided at the highest point of the liquid collecting chamber 25. The liquid source feeds liquid material into the liquid collecting chamber 25 via the liquid inlet pipe 251. The liquid material overflows after the liquid level exceeds the overflow port 252. The overflowed liquid material flows downward along the inner wall of the stirring chamber 21.

[0034] Since the liquid material that fails to overflow from the overflow port 252 will remain inside the collecting chamber 25, thereby contaminating the liquid material used in the next production, in order to solve this problem, preferably, a plurality of drainage holes 253 connected to the stirring chamber 21 are provided at the lowest point of the collecting chamber 25, and the flux of the drainage holes 253 is smaller than the flux of the liquid inlet pipe 251, so that the input speed of the liquid material through the liquid inlet pipe 251 is greater than the output speed of the liquid material through the drainage holes 253, thereby achieving the technical effect of emptying the liquid material inside the collecting chamber 25 through the drainage holes 253, and also achieving the technical effect of the liquid material inside the collecting chamber 25 overflowing through the overflow port 252.

[0035] Furthermore, in order to improve the dispersion effect of the solid material and ensure that the solid material is evenly thrown to the edge of the mixing chamber 21, refer to Figure 2The solid material inlet 22 is arranged just above the axial direction of the centrifugal disk 4. This design ensures that the solid material is at the same distance from the edge of the mixing chamber 21 in any direction when being thrown, thereby further improving the mixing efficiency of the solid material.

[0036] However, since the space directly above the centrifugal disk 4 in the axial direction is occupied by the solid material inlet 22, the drive system can only be set below the agitator disk 3 and the centrifugal disk 4. However, it is difficult for a traditional drive system to drive two coaxial components to rotate at different speeds from one direction. In order to solve this problem, an example is provided below to achieve this technical effect.

[0037] refer to Figure 2 , Figure 4 and Figure 5 The driving system includes: a motor 5, a high-speed shaft 6, a reducer 7 and a low-speed shaft 8.

[0038] Among them, the motor 5 and the reducer 7 are fixedly connected to the frame, the main shaft of the motor 5, the high-speed shaft 6, the input shaft 72 of the reducer 7, the output shaft 73 of the reducer 7 and the low-speed shaft 8 are coaxially connected in sequence, and the input shaft 72 of the reducer 7, the output shaft 73 of the reducer 7 and the low-speed shaft 8 are provided with through holes that are clearance-matched with the high-speed shaft 6, the stirring disc 3 is mounted on the outside of the low-speed shaft 8, the stirring disc 3 is transmission-connected to the low-speed shaft 8, the centrifugal disc 4 is installed on the top of the high-speed shaft 6, and the centrifugal disc 4 is transmission-connected to the high-speed shaft 6.

[0039] The main shaft of the motor 5 outputs torque to the high-speed shaft 6, so that the high-speed shaft 6 rotates at a relatively fast speed. The high-speed shaft 6 outputs torque to the low-speed shaft 8 through the reducer 7, so that the low-speed shaft 8 rotates at a relatively slow speed. The high-speed shaft 6 runs through the entire reducer 7 and the low-speed shaft 8, so that the centrifugal disk 4 can rotate at a relatively fast speed above the stirring disk 3, while the stirring disk 3 rotates at a relatively slow speed.

[0040] Furthermore, since the conventional reducer 7 does not have a structure through which a rotating shaft can pass, in order to solve this problem, an example is provided below to achieve this technical effect.

[0041] refer to Figure 6 and Figure 7 The reducer 7 includes: a reduction housing 71, an input shaft 72, a gear transmission mechanism and an output shaft 73. The input shaft 72 and the output shaft 73 are coaxially arranged, and the input shaft 72 and the output shaft 73 are respectively rotatably connected to the reduction housing 71. The input shaft 72 and the output shaft 73 both have through holes that are clearance-matched with the high-speed shaft 6. The output shaft 73 and the input shaft 72 are connected through a gear transmission mechanism. The transmission ratio of the gear transmission mechanism is greater than 1, so that the input shaft 72 rotates at a relatively fast speed, while the output shaft 73 rotates at a relatively slow speed.

[0042] Furthermore, an example is provided below to illustrate a gear transmission mechanism with a transmission ratio greater than 1.

[0043] refer to Figure 7 The gear transmission mechanism includes a first gear 74 coaxially connected to the input shaft 72, a second gear 75 meshing with the first gear 74, a third gear 76 coaxially connected to the second gear 75, and a fourth gear 77 meshing with the third gear 76 and coaxially connected to the output shaft 73. The number of teeth of the first gear 74 is smaller than that of the second gear 75, and the number of teeth of the third gear 76 is smaller than that of the fourth gear 77.

[0044] The input shaft 72 , the first gear 74 , the second gear 75 , the third gear 76 , the fourth gear 77 and the output shaft 73 are sequentially driven to form a gear transmission mechanism with a transmission ratio greater than 1.

[0045] Furthermore, the end of the high-speed shaft 6 close to the motor 5 is connected to the first flange 61, the input shaft 72 of the reducer 7 is connected to the second flange 721, the output shaft 73 of the reducer 7 is connected to the third flange 731, and the end of the low-speed shaft 8 close to the reducer 7 is connected to the fourth flange 81, the first flange 61 and the second flange 721 are fixedly connected, and the third flange 731 and the fourth flange 81 are fixedly connected.

[0046] In order to maintain the smooth rotation of the high-speed shaft 6 and the low-speed shaft 8 , a first bearing 63 is installed between the high-speed shaft 6 and the low-speed shaft 8 , and a second bearing 82 is installed between the low-speed shaft 8 and the mixing shell 2 .

[0047] As to the connection method between the centrifugal disc 4 and the high-speed shaft 6, an example is provided below.

[0048] refer to Figure 3 and Figure 7 The centrifugal disk 4 includes a rotating disk 41 and a rotating rod 42. The rotating rod 42 is coaxially arranged below the rotating disk 41. The bottom wall of the rotating rod 42 is formed with a first threaded hole 421 extending axially upward. The top end of the high-speed shaft 6 is coaxially connected with a threaded column 62, and the threaded column 62 is connected to the first threaded hole 421.

[0049] The bottom wall of the first threaded hole 421 is formed with a second threaded hole 422 extending axially upward. The diameter of the second threaded hole 422 is relatively smaller than the diameter of the first threaded hole 421. The interior of the high-speed shaft 6 is provided with a through hole axially penetrating itself and the threaded column 62. A bolt 43 is inserted into the through hole. The head of the bolt 43 abuts against the bottom end of the high-speed shaft 6, and the rod of the bolt 43 passes through the high-speed shaft 6 and connects to the second threaded hole 422.

[0050] Preferably, the spiral directions of the first threaded hole 421 and the second threaded hole 422 are opposite to each other, so as to improve the connection firmness between the centrifugal disk 4 and the high-speed shaft 6 .

[0051] Regarding the connection method between the stirring disc 3 and the low-speed shaft 8, an example is provided below.

[0052] refer to Figure 3 The stirring disc 3 and the low-speed shaft 8 transmit torque via a key (not shown in the figure), and the top of the low-speed shaft 8 is connected to a pressure plate 83 via bolts 43, and the pressure plate 83 is connected to the top of the stirring disc 3 via bolts 43.

[0053] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A gypsum board stirring and mixing device, characterized in that: It comprises a stirring shell (2), a stirring disk (3), a centrifugal disk (4) and a driving system; The stirring shell (2) is fixedly connected to the frame, the stirring shell (2) is provided with a disc-shaped stirring chamber (21), the stirring disc (3) and the centrifugal disc (4) are coaxially arranged inside the stirring chamber (21), and the centrifugal disc (4) is arranged above the stirring disc (3); The driving system is connected to the centrifugal disk (4) and the stirring disk (3), so that the centrifugal disk (4) and the stirring disk (3) rotate respectively, and the rotation speed of the centrifugal disk (4) is greater than the rotation speed of the stirring disk (3); The top of the stirring shell (2) is provided with a solid material inlet (22) and a liquid material inlet (23). The solid material inlet (22) is provided above the centrifugal disc (4). The centrifugal disc (4) is used to receive the fallen solid material and evenly scatter the solid material in all directions through its own rotation. The liquid material inlet (23) is provided around the inner wall of the stirring chamber (21). The liquid material introduced through the liquid material inlet (23) flows downward along the inner wall of the stirring chamber (21), flushing the scattered solid material between the stirring disc (3) and the stirring chamber (21), and achieving even mixing through the rotation of the stirring disc (3).

2. A gypsum board stirring and mixing device according to claim 1, characterized in that: A liquid collecting chamber (25) is arranged at the top of the stirring shell (2) and surrounds the inner wall of the stirring chamber (21). The liquid collecting chamber (25) is in the shape of a ring. The liquid collecting chamber (25) is connected to a liquid source via a liquid inlet pipe (251). An overflow port (252) close to the inner wall of the stirring chamber (21) is arranged at the highest point of the liquid collecting chamber (25). The liquid source feeds liquid material into the liquid collecting chamber (25) via the liquid inlet pipe (251). The liquid material overflows after the liquid level exceeds the overflow port (252). The overflowed liquid material flows downward along the inner wall of the stirring chamber (21).

3. A gypsum board stirring and mixing device according to claim 2, characterized in that: A plurality of drainage holes (253) connected to the stirring chamber (21) are provided at the lowest point of the liquid collecting chamber (25), and the flux of the drainage holes (253) is smaller than the flux of the liquid inlet pipe (251), so that the input speed of the liquid material through the liquid inlet pipe (251) is greater than the output speed of the liquid material through the drainage holes (253).

4. A gypsum board stirring and mixing device according to claim 1, characterized in that: The solid material inlet (22) is arranged directly above the centrifugal disc (4) in the axial direction.

5. A gypsum board stirring and mixing device according to claim 4, characterized in that: The driving system includes a motor (5), a high-speed shaft (6), a reducer (7) and a low-speed shaft (8); The motor (5) and the reducer (7) are fixedly connected to the frame; the main shaft of the motor (5), the high-speed shaft (6), the input shaft (72) of the reducer (7), the output shaft (73) of the reducer (7) and the low-speed shaft (8) are coaxially connected in sequence; the input shaft (72), the output shaft (73) and the low-speed shaft (8) are all provided with through holes that are clearance-matched with the high-speed shaft (6); the stirring disc (3) is sleeved on the outer side of the low-speed shaft (8); the stirring disc (3) is drivingly connected to the low-speed shaft (8); the centrifugal disc (4) is mounted on the top of the high-speed shaft (6); and the centrifugal disc (4) is drivingly connected to the high-speed shaft (6).

6. A gypsum board stirring and mixing device according to claim 5, characterized in that: The reducer (7) further comprises: a reduction housing (71) and a gear transmission mechanism, wherein the input shaft (72) and the output shaft (73) are coaxially arranged, and the input shaft (72) and the output shaft (73) are respectively rotationally connected to the reduction housing (71), and the output shaft (73) and the input shaft (72) are connected via the gear transmission mechanism.

7. A gypsum board stirring and mixing device according to claim 6, characterized in that: The gear transmission mechanism comprises a first gear (74) coaxially connected to the input shaft (72), a second gear (75) meshing with the first gear (74), a third gear (76) coaxially connected to the second gear (75), and a fourth gear (77) meshing with the third gear (76) and coaxially connected to the output shaft (73), wherein the number of teeth of the first gear (74) is smaller than the number of teeth of the second gear (75), and the number of teeth of the third gear (76) is smaller than the number of teeth of the fourth gear (77).

8. A gypsum board stirring and mixing device according to claim 6, characterized in that: The end of the high-speed shaft (6) close to the motor (5) is connected to a first flange (61), the input shaft (72) of the reducer (7) is connected to a second flange (721), the output shaft (73) of the reducer (7) is connected to a third flange (731), and the end of the low-speed shaft (8) close to the reducer (7) is connected to a fourth flange (81), the first flange (61) and the second flange (721) are fixedly connected, and the third flange (731) and the fourth flange (81) are fixedly connected.

9. A gypsum board stirring and mixing device according to claim 5, characterized in that: The centrifugal disk (4) comprises a rotating disk (41) and a rotating rod (42); the rotating rod (42) is coaxially arranged below the rotating disk (41); a first threaded hole (421) extending axially upward is formed on the bottom wall of the rotating rod (42); a threaded column (62) is coaxially connected to the top end of the high-speed shaft (6); and the threaded column (62) is connected to the first threaded hole (421); A second threaded hole (422) extending axially upward is formed on the bottom wall of the first threaded hole (421), the diameter of the second threaded hole (422) being relatively smaller than the diameter of the first threaded hole (421), and the spiral directions of the first threaded hole (421) and the second threaded hole (422) being opposite; The high-speed shaft (6) is provided with a through hole axially penetrating the high-speed shaft (6) and the threaded column (62), a bolt (43) being inserted into the through hole, the head of the bolt (43) being against the bottom end of the high-speed shaft (6), and the rod of the bolt (43) passing through the high-speed shaft (6) being connected to the second threaded hole (422).

10. A gypsum board mixing method, characterized in that: The gypsum board stirring and mixing method is performed using the gypsum board stirring and mixing device according to any one of claims 1 to 9, and the gypsum board stirring and mixing method comprises the following steps; Step 1: Add raw materials: Add solid materials to the top of the centrifugal disc through the solid material inlet, and at the same time, add liquid materials to the mixing chamber through the liquid material inlet, so that the liquid materials flow downward along the inner wall of the mixing chamber; Step 2: Disperse the solid materials: rotate the centrifugal disc at a higher speed than the stirring disc, and use the centrifugal force to evenly spread the solid materials to the edge area of ​​the stirring chamber; Step 3: Mixing and stirring: The stirring disc is rotated at a relatively low speed, and the stirring teeth on the stirring disc shear and stir the solid materials thrown to the edge and the liquid materials flowing down; Step 4: Discharge the mixture: After reaching the predetermined stirring time, discharge the slurry.

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