Gypsum board mixer for preventing exhaust hole from being blocked

Abstract

The present invention discloses a gypsum board mixer that prevents the clogging of exhaust holes, comprising a mixer cavity, an exhaust hole being provided at the top of the mixer cavity, an annular cylinder with openings at both ends, one end of the annular cylinder being mounted on the exhaust hole, and the other end being arranged toward the interior of the mixer cavity, a mesh disk being provided inside the annular cylinder, the mesh disk being rotatably arranged on the end opening of the annular cylinder, and a first injection hole being further provided inside the annular cylinder. The present invention isolates dust and material splashing in the mixer by providing a mesh disk, and isolates the raised dust by providing an injection hole, thereby effectively isolating the material dust from entering and significantly reducing the possibility of the mixer exhaust hole being clogged. In addition, the device can also drive the mesh disk to rotate through the water column ejected from the injection hole, further preventing the material from sticking to the exhaust hole, thereby eliminating the need for staff to manually clean the mixer exhaust port and discharge port, thereby improving work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of gypsum board production, in particular to a gypsum board mixer capable of preventing air vents from being blocked. Background Art

[0002] During the actual production process of gypsum board, the slurry is mixed in a mixer. Typically, process water, gypsum powder, and auxiliary materials are added to the mixer, and the slurry is prepared through agitation.

[0003] However, during the addition and mixing of materials, some dusty materials will rise up, forming dust. Dust will fly out of the larger feed inlet (the inlet for added materials and auxiliary materials, generally located on the top surface of the gypsum board mixer) and the smaller exhaust outlet. Powdered dust in the air can seriously pollute the air environment and pose a serious threat to the human body if inhaled.

[0004] In response to the above problems, the traditional solution usually relies on the operator to manually clean the exhaust hole or the discharge port with a brush and water after the problem occurs. The cleaning process is time-consuming and labor-intensive, and there are also safety hazards. Summary of the Invention

[0005] The object of the present invention is to provide a gypsum board mixer that can prevent the exhaust holes from being blocked, so as to solve the technical problem in the prior art of potential safety hazards caused by manual cleaning of the exhaust holes.

[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0007] A gypsum board mixer for preventing clogging of exhaust holes, comprising:

[0008] A mixer cavity, which is used to mix gypsum board materials and has an exhaust hole at the top;

[0009] An annular cylinder, with openings at both ends, one end of the annular cylinder being mounted on the exhaust hole and the other end being disposed toward the interior of the mixer cavity;

[0010] A mesh blocking portion is provided inside the annular column, and the mesh blocking portion includes a mesh disk, which is rotatably provided on the end opening of the annular column, and the mesh disk rotates with the longitudinal center axis of the annular column as a rotation axis;

[0011] A water film blocking portion is further provided inside the annular column. The water film blocking portion includes a first spray hole. The first spray hole sprays a water column to drive the mesh disk to rotate at the end of the annular column to block the slurry and dust from the mixer cavity.

[0012] As a preferred technical solution of the present invention, the inner wall of the annular cylinder is recessed inward to form an annular groove, and the mesh plate is rotatably connected to the annular cylinder by embedding its edge into the annular groove.

[0013] Ball bearings are arranged on the upper and lower surfaces of the annular groove, and annular limiting grooves are provided on the upper and lower surfaces of the edge of the mesh plate, and the balls abut against the annular limiting grooves.

[0014] As a preferred technical solution of the present invention, elastic baffles are provided above and below the mesh disk, and the elastic baffles are distributed in a ring shape on the inner wall of the annular cylinder along the edge of the mesh disk. One end of the elastic baffle is provided on the inner wall of the annular cylinder, and the other end elastically abuts against the edge surface of the mesh disk. The elastic baffle is used to close the gap connecting the mesh disk and the annular groove.

[0015] As a preferred technical solution of the present invention, the mesh blocking part also includes a plurality of impeller blades arranged on the upper surface of the mesh disk, and the plurality of impeller blades are distributed in a ring array on the surface of the mesh disk close to the edge. The impeller blades are arranged in a crescent shape as a whole, and the concave side of the crescent-shaped impeller blade faces the first injection hole. The water column ejected from the first injection hole contacts the concave side of the plurality of impeller blades in turn to drive the mesh disk.

[0016] As a preferred technical solution of the present invention, the water column sprayed from the first spray hole lands near the top of the impeller blade.

[0017] As a preferred technical solution of the present invention, a reinforcing rib is provided on the side of the impeller blade opposite to the recessed side, one end of the reinforcing rib is connected to the mesh disk, and the other end is connected to the convex surface of the impeller blade.

[0018] As a preferred technical solution of the present invention, a plurality of through holes are opened on the surface of the impeller blade to reduce its own weight.

[0019] As a preferred technical solution of the present invention, the interior of the annular cylinder is hollowed out to form a water storage chamber, the first injection hole is arranged on the inner wall of the annular cylinder and the first injection hole is connected to the water storage chamber, the water storage chamber is connected to an external water pipe, the external water pipe is a pressurized water pipe, and a shut-off valve, a flow meter and a pressure gauge are provided on the external water pipe.

[0020] As a preferred technical solution of the present invention, a plurality of second spray holes 17 are provided above the first spray hole in the annular cylinder. The plurality of second spray holes 17 are circumferentially distributed on the inner wall of the annular cylinder around the longitudinal center axis of the annular cylinder, and the second spray holes 17 are connected to the water storage chamber.

[0021] A mist nozzle is provided in the second spray hole 17 , and the water in the water storage chamber flows through the mist nozzle and is ejected in a fan-shaped or triangular shape to form a water film surface in the middle of the annular cylinder.

[0022] As a preferred technical solution of the present invention, a protruding inner wall water trough cavity is provided on the inner wall of the end portion of the annular cylinder close to the exhaust port, the inner wall water trough cavity is arranged circumferentially along the inner wall of the annular cylinder, the inner wall water trough cavity is communicated with the water storage cavity, a water leakage hole is provided at the bottom of the inner wall water trough cavity, and the water leakage trough is inclined toward the inner wall of the annular cylinder, and the water flow ejected from the water leakage hole is used to shower over the inner wall of the circular cylinder.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention provides a mesh plate to isolate dust and material splashing within the mixer. Furthermore, by providing a spray hole to form a water film, the dust is secondary isolated, effectively blocking the entry of material dust and significantly reducing the possibility of the mixer's exhaust holes being clogged. Furthermore, the device can also drive the mesh plate to rotate through the water jet ejected from the spray hole, thereby better blocking the splashing material and further preventing it from sticking to the exhaust hole. This eliminates the need for manual cleaning of the mixer's exhaust and discharge ports, improving work efficiency and reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0026] Figure 1 It is a schematic diagram of the overall cross-section structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the overall structure of the present invention, specifically including a mixer cavity;

[0028] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0029] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0030] Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle.

[0031] The numbers in the figure represent the following:

[0032] 1. Mixer cavity; 2. Annular cylinder; 3. Mesh blocking part; 4. Mesh plate; 5. Water film blocking part; 6. First injection hole; 7. Annular groove; 8. Ball; 9. Annular limit groove; 10. Elastic baffle; 11. Impeller blade; 12. Reinforcement rib; 13. Through hole; 14. Water storage cavity; 15. Inner wall water tank cavity; 16. Leakage hole; 17. Second injection hole. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0034] like Figures 1 to 5 As shown, the present invention provides a gypsum board mixer for preventing the blockage of the exhaust hole, comprising a mixer cavity 1, the mixer cavity 1 is used for mixing gypsum board materials, and the top of the mixer cavity 1 is provided with an exhaust hole.

[0035] The annular column 2 has openings at both ends. One end of the annular column 2 is mounted on the exhaust hole, and the other end is disposed toward the interior of the mixer cavity 1 .

[0036] A mesh blocking portion 3 is provided inside the annular column 2. The mesh blocking portion 3 includes a mesh disk 4. The mesh disk 4 is rotatably provided on the end opening of the annular column 2, and the mesh disk 4 rotates with the longitudinal center axis of the annular column 2 as the rotation axis.

[0037] A water film blocking portion 5 is also provided inside the annular column 2. The water film blocking portion 5 includes a first injection hole 6. The first injection hole 6 sprays a water column to drive the mesh disk 4 to rotate at the end of the annular column 2 to block the slurry and dust from the mixer cavity 1.

[0038] In the use of traditional mixers, after the powder made of gypsum powder is added into the mixer, dust will be generated and discharged from the exhaust hole. In addition, during the operation of the mixer, the process water inside it may splash into the exhaust hole after combining with the powder and being stirred by the internal stirring device, thereby causing the exhaust hole to be blocked.

[0039] Therefore, in this device, the mesh plate 4 and the water film blocking part 5 are provided to act together at the exhaust hole, so as to form two barriers to isolate the exhaust hole, thereby greatly reducing the probability of blockage here.

[0040] The mesh plate 4 and the water film blocking part 5 are both arranged on the annular cylinder 2. The annular cylinder 2 is a cylinder with a hollow interior connected to the exhaust hole. The hollow interior is connected to the exhaust hole to form a passage for the internal air to flow out.

[0041] The annular cylinder 2 is fixedly mounted at one end to the vent, with the other end facing the interior of the mixer. The connection between the end and the vent can be achieved by threaded engagement. The outer wall of the annular cylinder 2 can be threaded so that the annular cylinder 2 is inserted into the top inner wall of the mixer for connection. Alternatively, the inner wall of the annular cylinder 2 can be threaded so that the annular cylinder 2 connects to a protrusion (artificially formed and arranged around the vent) formed on the inner wall of the mixer.

[0042] At the same time, the water column in the first spray hole 6 and the water flow in the second spray hole 17 can also flush the mesh plate 4, further preventing the mesh plate 4 from being stuck with dust and splashing slurry.

[0043] like Figure 1 As shown, the interior of the annular cylinder 2 is hollowed out to form a water storage chamber 14, the first injection hole 6 is arranged on the inner wall of the annular cylinder 2 and the first injection hole 6 is connected to the water storage chamber 14, the water storage chamber 14 is connected to an external water pipe, the external water pipe is a pressurized water pipe, and a shut-off valve, a flow meter and a pressure gauge are provided on the external water pipe (as shown in the figure).

[0044] The water storage chamber 14 is arranged inside the annular cylinder 2. The cylinder wall is hollowed out and the whole is a closed cavity. It is only connected to the external water pipe. The water storage chamber 14 formed by the hollowing inside the annular cylinder 2 is used to store water so that the internal water flow can be ejected from the injection holes (the first injection hole 6 and the second injection hole 17) opened on the inner wall of the annular cylinder 2.

[0045] The external water pipe can be connected to the outer wall of the annular column 2 at one end, communicated with the internal water storage chamber 14, and the other end passes through the mixer and is connected to an external water source. The external water pipe can also be connected to the top of the annular column 2 and communicated with it.

[0046] The external water pipe injects water into the water storage chamber 14 and maintains a certain pressure, so that the water in the water storage chamber 14 is ejected from the injection hole.

[0047] In this device, a mesh disk 4 is provided at one end of the annular cylinder 2 facing the interior of the mixer, so that the splashing of the material inside the mixer can be blocked by the mesh disk 4, reducing the amount of the material entering the center of the annular cylinder 2.

[0048] Then, the water column formed by the external water pipe and the water storage chamber 14 at the first injection hole 6 is used to impact the mesh disk 4, so that the mesh disk 4 rotates and the position of the cross fork in the middle of the mesh disk 4 is changed, so that the blocking range is wider and the possibility of material splashing into the annular cylinder 2 is smaller and less.

[0049] Finally, a water film is formed in the center of the annular cylinder 2 through the second injection hole 17, and the middle of the annular cylinder 2 is covered by the water film, thereby isolating dust from entering the exhaust hole.

[0050] As for the connection between the mesh plate 4 and the annular cylinder 2, in this device, the inner wall of the annular cylinder 2 can be recessed to form an annular groove 7, and the mesh plate 4 is rotatably connected to the annular cylinder 2 by embedding the edge thereof into the annular groove 7.

[0051] Ball bearings 8 are arranged on the upper and lower surfaces of the annular groove 7 , and annular limiting grooves 9 are provided on the upper and lower surfaces of the edge of the mesh plate 4 , and the ball bearings 8 abut against the annular limiting grooves 9 .

[0052] The connection between the ball bearings 8 and the mesh disk 4 can reduce friction during the rotation of the mesh disk 4 and provide a better rotation effect.

[0053] The mesh plate 4 is a common mesh plate similar to a filter screen, with a solid edge and a mesh-shaped middle portion. In this device, the mesh plate 4 is connected to the annular groove by embedding the solid edge portion of the mesh plate 4 into the annular groove 7, and the mesh plate 4 rotates by abutting against the ball 8.

[0054] The annular limiting groove 9 is provided on the edge of the mesh plate 4 to limit the position of the mesh plate 4 in the annular groove 7. Since the mesh plate 4 needs to rotate in the annular groove 7, a certain gap is required between the mesh plate 4 and the annular groove 7. However, this gap will cause the mesh plate 4 to shake in the annular groove 7. Therefore, the annular limiting groove 9 is provided on the mesh plate 4 so that the ball 8 is set in the annular groove 7. By using the annular limiting groove 9 to limit the ball 8, the mesh plate 4 is limited from the side.

[0055] Since dust and flying materials may enter the device, and there is a gap between the mesh plate 4 and the annular groove 7, if a component for closing the gap is not provided, dust or materials are likely to enter the annular groove 7, thereby causing the mesh plate 4 to be stuck and unable to rotate. Therefore, an elastic baffle 10 is also added to the device.

[0056] like Figures 1 to 5As shown, elastic baffles 10 are provided above and below the mesh disk 4. The elastic baffles 10 are distributed in a ring shape on the inner wall of the annular cylinder 2 along the edge of the mesh disk 4. One end of the elastic baffle 10 is provided on the inner wall of the annular cylinder 2, and the other end elastically abuts against the edge surface of the mesh disk 4. The elastic baffle 10 is used to close the gap connecting the mesh disk 4 and the annular groove 7.

[0057] The function of the elastic baffle 10 is to block the gap (two gaps above and below) connecting the mesh disk 4 and the annular groove 7, so that dust and the like will not enter the annular groove 7. Since the mesh disk 4 needs to rotate, one end of the elastic baffle 10 cannot be fixedly connected to the mesh disk 4, but can be rotated or abutted against the mesh disk 4. Taking the present device as an example, the elastic baffle 10 itself has a certain elasticity, one end of which is fixedly mounted on the inner wall of the annular cylinder 2, and the other end abuts against the edge of the mesh disk 4, thereby closing the gap. More specifically, when the end of the elastic baffle 10 abuts against the edge of the mesh disk 4, the end of the elastic baffle 10 will bend and fit on the edge surface of the mesh disk 4, thereby connecting to the mesh disk 4 and not restricting the rotation of the mesh disk 4.

[0058] As for the rotation of the mesh disk 4, in this device, the water column sprayed from the first spray hole 6 is used to collide with the impeller blade, thereby pushing the impeller blade to rotate.

[0059] like Figure 4 As shown, the mesh blocking portion 3 further includes a plurality of impeller blades 11 disposed on the upper surface of the mesh disk 4. The plurality of impeller blades 11 are distributed in an annular array on the surface of the mesh disk 4 near the edge. The impeller blades 11 are arranged in a crescent shape as a whole, with the concave side of the crescent-shaped impeller blade 11 facing the first injection hole 6. The water jets ejected from the first injection hole 6 sequentially contact the concave sides of the plurality of impeller blades 11 to drive the mesh disk 4. The water jets ejected from the first injection hole 6 land near the top of the impeller blade 11.

[0060] First, the impeller blade 11 is specifically arranged on the upper surface of the mesh plate 4. The solid portion of the edge of the mesh plate 4 can be made slightly larger, on the one hand to facilitate its connection with the annular groove 7, and on the other hand to allow the impeller blade 11 to be arranged thereon. The reason for placing the impeller blade 11 close to the edge of the mesh plate 4 is to more effectively drive the mesh plate 4 to rotate when the water column impacts the impeller blade 11.

[0061] Secondly, setting the impeller blade 11 in a crescent shape can cause water to form a backflow, making the impact potential energy of the water column greater. In this device, the position of the first injection hole 6 is fixed, and the water column is ejected at a fixed angle. The water column impacts the top position of the concave side of the impeller blade 11, pushing the impeller blade 11 to drive the mesh disk 4 to rotate. When the water column impacts the crescent-shaped side of the impeller blade 11, compared to a flat surface, the water column does not directly explode and diffuse. Instead, some water flows downward along the crescent-shaped concave surface, forming a backflow, thereby increasing the impact on the impeller blade 11 and further increasing the driving force on the mesh disk 4.

[0062] During the specific configuration, since the impeller blades 11 are distributed in a circular array, their concave sides are aligned with the first injection holes 6. That is, in the initial static state, each first injection hole 6 is aligned with a single impeller blade 11. After the mesh disk 4 rotates, although each first injection hole 6 is still aligned with a single impeller blade 11, the impeller blade 11 rotates due to the rotation of the mesh disk 4. Therefore, each impeller blade 11 will pass by the position of the first injection hole 6 and be impacted by the water column. In actual configuration, the first injection hole 6 is arranged above the mesh disk and tilted downward to align with the impeller blade 11.

[0063] Furthermore, a reinforcing rib 12 is provided on the side of the impeller blade 11 opposite to the concave side. One end of the reinforcing rib 12 is connected to the mesh plate 4, and the other end is connected to the convex surface of the impeller blade 11. The function of the reinforcing rib is to prevent the impeller blade 11 from being broken by the impact of the water column for a long time. Therefore, the reinforcing rib is provided on the back side of the concave side of the impeller blade 11 to support the impeller blade 11.

[0064] In addition, a plurality of through holes 13 may be provided on the surface of the impeller blade 11 to reduce its own weight. Thus, the impeller blade 11 is formed into a shape with a hollow center to reduce its own weight and the overall weight of the mesh disk 4, thereby making the rotation of the mesh disk 4 smoother.

[0065] like Figure 1 As shown, a plurality of second spray holes 17 are provided above the first spray hole 6 in the annular cylinder 2 . The plurality of second spray holes 17 are distributed circumferentially on the inner wall of the annular cylinder 2 around the longitudinal center axis of the annular cylinder 2 , and the second spray holes 17 are connected to the water storage chamber 14 .

[0066] A mist nozzle is provided in the second spray hole 17 , and the water in the water storage chamber 14 is ejected through the mist nozzle and spreads out in a fan shape or a triangle and forms a water film surface in the middle of the annular cylinder 2 .

[0067] After the first spray hole 6 sprays water to drive the mesh plate 4 to rotate, thereby forming a barrier to dust and splashing slurry, the second spray hole 17 sprays water to form a water film above the mesh plate 4, forming a second barrier to dust and splashing slurry. The combined use of these two barriers reduces the amount of dust that enters the exhaust hole.

[0068] In actual use, the dust generated during the discharge of the slurry and powder brought up by the stirring device in the mixer may break through the mesh disk 4 and enter the annular cylinder 2. Therefore, an annular second injection hole 17 is also opened on the inner wall of the annular cylinder 2. By arranging a mist nozzle in the second injection hole 17, the water in the water storage chamber 14 is diffused after passing through the second injection hole 17 and sprayed out in the form of mist. The mist water sprayed from the multiple second injection holes 17 forms a water film in the annular cylinder 2 above the mesh disk 4. When the splashing slurry contacts the water film, it will fall due to resistance or be dispersed into small particles and fall down. When the dust rises with the airflow, the airflow is discharged through the water film, and the dust will be screened by the water film or condensed into granular slurry and fall down.

[0069] Furthermore, in this device, the water film formed by the second spray holes 17 not only blocks dust but also cleans the inner wall of the annular cylinder 2. The fan-shaped water jets ejected from the second spray holes 17 collide with each other in the middle of the annular cylinder 2, then burst and disperse, splashing onto the inner wall of the annular cylinder 2, flushing it, thereby preventing dust and slurry from clogging the annular cylinder 2.

[0070] In actual operation, the water film may only form in the middle of the annular cylinder 2, rather than forming a complete circular shape covering the entire central hole area of the annular cylinder 2. In other words, there is still an area without water film between two adjacent second injection holes 17. However, although slurry and dust may overflow from these areas, most of them will be blocked by the water flow.

[0071] Furthermore, multiple layers of second injection holes 17 may be provided to form multiple water films for isolation.

[0072] In addition, the device is also provided with a protruding inner wall water trough cavity 15 on the inner wall of the end of the annular cylinder 2 near the exhaust port. The inner wall water trough cavity 15 is arranged along the circumference of the inner wall of the annular cylinder 2. The inner wall water trough cavity 15 is connected with the water storage cavity 14. A water leakage hole 16 is provided at the bottom of the inner wall water trough cavity 15, and the water leakage hole 16 is inclined toward the inner wall of the annular cylinder 2. The water flow ejected from the water leakage hole 16 is used to shower over the inner wall of the annular cylinder 2.

[0073] The main function of the inner wall water tank cavity 15 is to flow water along the inner wall of the annular cylinder 2 through the leakage holes 16, so that the water flows over the inner wall, cleaning the inner wall and preventing slurry from adhering to the inner wall of the annular cylinder 2. It also prevents dust and slurry from overflowing from the adjacent second injection holes 17 and entering the exhaust hole to a certain extent. The leakage holes 16 are formed around the annular cylinder 2.

[0074] As shown in the figure, the bottom surface of the water leakage hole 16 can be provided with an inclined edge inclined toward the inner wall of the annular cylinder, so that the water sprayed from the water leakage hole can flow toward the annular cylinder, thereby cleaning the inner wall of the annular cylinder.

[0075] Furthermore, the size of the leak hole 16 can be slightly larger. Since the inner wall water tank cavity 15 is connected to the water storage cavity 14, the water pressure applied to the first spray hole 6 and the second spray hole 17 is the same as the water pressure applied to the leak hole 16. Therefore, if the leak hole 16 is smaller, the water column ejected from the leak hole 16 will be faster and will rebound and diverge after hitting the inner wall of the annular cylinder 2. Only a small amount of water will flow down along the inner wall of the annular cylinder 2, resulting in a poor rinsing effect. If the leak hole 16 is larger, the same water pressure from the inner wall water tank cavity 15 will be applied to the leak hole 16, resulting in a slower ejection speed and less impact. This can reduce the splashing of water and achieve a better rinsing effect on the inner wall of the annular cylinder 2.

[0076] The above embodiments are merely exemplary embodiments of the present application and are not intended to limit the scope of the present application. The scope of protection of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and scope of protection of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present application.

Claims

1. A gypsum board mixer for preventing clogging of exhaust holes, characterized in that: include: A mixer cavity (1), the mixer cavity (1) is used for mixing gypsum board materials, and an exhaust hole is provided on the top of the mixer cavity (1); An annular column (2), wherein both ends of the annular column (2) are provided with openings, one end of the annular column (2) is mounted on the exhaust hole, and the other end is arranged toward the interior of the mixer cavity (1); A mesh blocking portion (3) is provided inside the annular column (2), and the mesh blocking portion (3) includes a mesh plate (4). The mesh plate (4) is rotatably provided on the end opening of the annular column (2), and the mesh plate (4) rotates with the longitudinal center axis of the annular column (2) as a rotation axis. A water film blocking portion (5) is further provided inside the annular column (2), and the water film blocking portion (5) includes a first spray hole (6). The first spray hole (6) sprays a water column to drive the mesh plate (4) to rotate at the end of the annular column (2) to block the slurry and dust from the mixer cavity (1); The annular cylinder (2) is hollowed out to form a water storage chamber (14); the first injection hole (6) is provided on the inner wall of the annular cylinder (2) and the first injection hole (6) is in communication with the water storage chamber (14); the water storage chamber (14) is connected to an external water pipe, the external water pipe is a pressurized water pipe, and a stop valve, a flow meter, and a pressure gauge are provided on the external water pipe; A plurality of second spray holes (17) are provided above the first spray hole (6) in the annular cylinder (2), the plurality of second spray holes (17) being distributed circumferentially on the inner wall of the annular cylinder (2) around the longitudinal center axis of the annular cylinder (2), and the second spray holes (17) are in communication with the water storage chamber (14); A mist nozzle is provided in the second spray hole (17), and the water in the water storage chamber (14) is ejected through the mist nozzle to spread out in a fan or triangle shape and form a water film surface in the middle of the annular cylinder (2).

2. A gypsum board mixer for preventing vent blockage according to claim 1, characterized in that: The inner wall of the annular cylinder (2) is recessed inward to form an annular groove (7), and the mesh plate (4) is rotatably connected to the annular cylinder (2) by embedding its edge into the annular groove (7). Ball bearings (8) are arranged on the upper and lower surfaces of the annular groove (7), and annular limiting grooves (9) are provided on the upper and lower surfaces of the edge of the mesh plate (4), and the ball bearings (8) abut against the annular limiting grooves (9).

3. A gypsum board mixer for preventing clogging of exhaust holes according to claim 2, characterized in that: Elastic retaining strips (10) are provided above and below the mesh disk (4). The elastic retaining strips (10) are distributed in an annular manner on the inner wall of the annular cylinder (2) along the edge of the mesh disk (4). One end of the elastic retaining strip (10) is provided on the inner wall of the annular cylinder (2), and the other end elastically abuts against the edge surface of the mesh disk (4). The elastic retaining strip (10) is used to close the gap connecting the mesh disk (4) and the annular groove (7).

4. A gypsum board mixer for preventing clogging of exhaust holes according to claim 2, characterized in that: The mesh blocking portion (3) further comprises a plurality of impeller blades (11) arranged on the upper surface of the mesh disk (4), wherein the plurality of impeller blades (11) are distributed in an annular array on the surface of the mesh disk (4) near the edge thereof, and the impeller blades (11) are arranged in a crescent shape as a whole, wherein the concave side of the crescent-shaped impeller blade (11) faces the first injection hole (6), and the water jets ejected from the first injection hole (6) sequentially contact the concave sides of the plurality of impeller blades (11) to drive the mesh disk (4).

5. A gypsum board mixer for preventing clogging of exhaust holes according to claim 4, characterized in that: The water column sprayed from the first spray hole (6) lands at a position close to the top end of the impeller blade (11).

6. A gypsum board mixer for preventing clogging of exhaust holes according to claim 4, characterized in that: A reinforcing rib (12) is provided on the side of the impeller blade (11) opposite to the concave side, one end of the reinforcing rib (12) is connected to the mesh plate (4), and the other end is connected to the convex surface of the impeller blade (11).

7. A gypsum board mixer for preventing clogging of exhaust holes according to claim 4, characterized in that: A plurality of through holes (13) are provided on the surface of the impeller blade (11) to reduce its own weight.

8. A gypsum board mixer for preventing clogging of exhaust holes according to claim 1, characterized in that: A protruding inner wall water trough cavity (15) is provided on the inner wall of the end portion of the annular cylinder (2) near the exhaust hole. The inner wall water trough cavity (15) is circumferentially arranged along the inner wall of the annular cylinder (2). The inner wall water trough cavity (15) is connected to the water storage cavity (14). A water leakage hole (16) is provided at the bottom of the inner wall water trough cavity (15). The water leakage hole (16) is inclined toward the inner wall of the annular cylinder (2). The water flow ejected from the water leakage hole (16) is used to shower over the inner wall of the annular cylinder (2).

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