Slurry grinding equipment

Abstract

A grinding cylinder is arranged in a machine box, a hose is arranged at the feeding end of the grinding cylinder, a grinding roller is arranged at the bottom of the grinding cylinder in a penetrating mode, a transmission structure is arranged outside the machine box, a servo motor is arranged on the transmission structure, and the servo motor is in transmission fit with the grinding roller through the transmission structure. The servo motor is in reciprocating fit with the grinding cylinder through a transmission structure and a reciprocating structure; the transmission structure comprises a transmission box, a gear A and a gear B are arranged in the transmission box, the gear A and the gear B are connected in a meshed mode, a connecting shaft A connected with the gear A in a sleeved mode is connected with the servo motor and the grinding roller, and a connecting shaft B connected with the gear B in a sleeved mode is connected with the reciprocating structure; the reciprocating structure comprises a cylindrical cam and a sleeve, the cylindrical cam is connected with a connecting shaft B sleeved with a gear B, the sleeve is connected with the grinding cylinder, and a roller on the inner wall of the sleeve is in sliding fit with a groove in the cylindrical cam. The starch grinding device has the advantages that the grinding cylinder transversely reciprocates relative to the grinding roller while the grinding roller rotates, and starch particles are further ground.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding, and particularly to a slurry grinding device. Background Art

[0002] Textile slurry is a key material used in the textile process to process yarns, mainly used to improve the weavability of yarns, reduce friction and breakage rate during the weaving process.

[0003] Textile slurry includes natural slurry, chemically synthesized slurry and composite slurry. Among them, natural slurry includes starch-based and plant gum-based; starch-based mainly includes corn starch, cassava starch, potato starch, etc. After removing impurities from natural starch raw materials such as corn starch, cassava starch, and potato starch, the starch granules are soaked and softened. Some natural starch granules are larger or contain impurities and need to be ground to make their particle sizes uniform to improve gelatinization efficiency and slurry stability. If the chemically modified starch may form lumps, it needs to be ground twice to ensure powder fluidity for subsequent mixing and dissolution.

[0004] The natural starch granules are ground by a grinding device. The natural starch granules enter the grinding cylinder, and the power provided by the motor drives the grinding roller to rotate. During the rotation of the grinding roller relative to the grinding cylinder, the natural starch granules located between the grinding roller and the inner wall of the grinding cylinder are ground. However, when the existing grinding roller grinds the natural starch granules, the grinding roller rotates relative to the grinding cylinder, and when grinding the natural starch granules, it only grinds in the direction of the rotation of the grinding roller. The natural starch granules are subjected to relatively single grinding force, and there is a situation of insufficient grinding.

[0005] In view of this, we propose a slurry grinding device. Summary of the Invention

[0006] The purpose of the present invention is to provide a slurry grinding device to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A slurry grinding device includes a chassis. A grinding cylinder is movably arranged inside the chassis. A hose is arranged at the feeding end of the grinding cylinder. A plurality of sieve holes are opened at the discharging end of the grinding cylinder. A grinding roller penetrates through the bottom of the grinding cylinder. A grinding gap is arranged between the outer wall of the grinding roller and the inner wall of the bottom of the grinding cylinder. A transmission structure is fixedly arranged outside the chassis. A servo motor is fixedly arranged on the transmission structure. The servo motor is in transmission cooperation with one end of the grinding roller through the transmission structure. The other end of the grinding roller is rotationally connected to the chassis through a rotating shaft. The servo motor is in reciprocating cooperation with the grinding cylinder through the transmission structure and a reciprocating structure;

[0008] The transmission structure includes a transmission box, which is fixedly arranged on the chassis. A gear A and a gear B are respectively rotatably arranged in the transmission box. The gear A and the gear B are meshed and connected. Both ends of the connecting shaft A sleeved with the gear A penetrate through the transmission box. Sealing bearings A are arranged at the penetration positions of both ends of the connecting shaft A and the transmission box. One end of the connecting shaft A sleeved with the gear A is connected to the transmission shaft of the servo motor, and the other end of the connecting shaft A sleeved with the gear A is connected to one end of the grinding roller. One end of the connecting shaft B sleeved with the gear B penetrates through the transmission box. A sealing bearing B is arranged at the penetration position of one end of the connecting shaft B and the transmission box. The other end of the connecting shaft B is rotatably connected to the inner wall of the transmission box. One end of the connecting shaft B sleeved with the gear B is connected to the reciprocating structure;

[0009] The reciprocating structure includes a cylindrical cam and a sleeve. One end of the cylindrical cam is fixedly connected to one end of the connecting shaft B sleeved with the gear B. One end of the sleeve is fixedly connected to the grinding cylinder. A roller is fixedly arranged on the inner wall of the sleeve, and the roller is in sliding fit with the groove on the cylindrical cam.

[0010] Preferably, the hose penetrates through the top end of the chassis. A groove is opened at the top end of the chassis, and the hose is movably arranged in the groove.

[0011] Preferably, both sides of the grinding cylinder are respectively connected to both sides of the inner wall of the chassis through a support structure. The support structure includes a fixed plate and a movable plate. One end of the fixed plate is fixedly arranged on the inner wall of the chassis, and one end of the movable plate is fixedly arranged on the side wall of the grinding cylinder. A chute is opened on the top side of the fixed plate, and a slider is fixedly arranged on the bottom side of the movable plate. The slider is in sliding fit with the chute.

[0012] Preferably, a blanking channel is fixedly arranged at the discharging end of the grinding cylinder. The inner cavity of the blanking channel corresponds to a plurality of sieve holes at the discharging end of the grinding cylinder. A discharging structure is arranged at the bottom of the chassis. The discharging structure includes an air duct B and an air duct C. The air duct B is fixedly arranged on one side of the bottom of the chassis, and the air duct C is fixedly arranged on the other side of the bottom of the chassis. The air duct B and the air duct C are corresponding. An air duct A is movably arranged between the air duct B and the air duct C. The opposite ends of the air duct B and the air duct C are respectively inserted and matched with both ends of the air duct A. The air duct A is connected to the blanking channel. The blanking channel, the air duct A, the air duct B and the air duct C are communicated. The air duct B is connected to a fan through a pipeline.

[0013] Preferably, sealing strips are respectively fixedly arranged at the opposite ends of the air duct B and the air duct C. The opposite ends of the air duct B and the air duct C are respectively in sealed fit with both ends of the inner cavity of the air duct A through the sealing strips.

[0014] Preferably, the cross section of the sealing strip is triangular, and the inclined surface of the sealing strip faces outward.

[0015] Preferably, a material collecting structure is respectively arranged at the grinding rollers on both sides of the grinding cylinder. The material collecting structure includes a circular sleeve sleeved on the grinding roller. The circular sleeve is fixedly connected to the grinding cylinder. A gap is provided between the inner wall of the circular sleeve and the outer wall of the grinding roller. The gap between the inner wall of the circular sleeve and the outer wall of the grinding roller is communicated with the inner cavity of the feeding channel through a connecting pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. By providing the grinding cylinder, grinding rollers, transmission structure and reciprocating structure, the present invention has the advantage that while the grinding rollers rotate, the grinding cylinder reciprocates horizontally relative to the grinding rollers, further grinding the starch particles, and solves the problem that when grinding natural starch particles, only the direction of rotation of the grinding rollers is used for grinding, and the natural starch particles are subjected to relatively single grinding force, resulting in insufficient grinding.

[0018] 2. By providing the feeding channel, air duct A, air duct B, air duct C and fan, the present invention has the advantage of efficiently collecting the ground starch particles.

[0019] 3. By providing the circular sleeve and the connecting pipe, the present invention has the advantage that the starch particles escaping from the gap at the connection between the grinding roller and the grinding cylinder are collected, reducing the waste of starch particles, and solving the problem of waste of the starch particles escaping from the gap at the connection between the grinding roller and the grinding cylinder. Description of the Drawings

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a schematic diagram of the position adjustment of the grinding cylinder of the present invention;

[0022] Figure 3 is a schematic diagram of the position adjustment of the grinding cylinder of the present invention;

[0023] Figure 4 is a schematic diagram of the driving connection structure between the grinding cylinder and the grinding rollers of the present invention;

[0024] Figure 5 is a schematic diagram of the sectional connection structure between the grinding cylinder and the grinding rollers of the present invention;

[0025] Figure 6 is a schematic diagram of the partial sectional view of the reciprocating structure of the present invention;

[0026] Figure 7 is a schematic diagram of the partial sectional view of the transmission structure of the present invention;

[0027] Figure 8 is a schematic diagram of the support structure of the present invention;

[0028] Figure 9 Schematic connection diagram of the material receiving structure and the material discharging structure of the present invention;

[0029] Figure 10 Schematic sectional connection diagram of the material receiving structure of the present invention;

[0030] Figure 11 Schematic sectional connection diagram of the material discharging structure of the present invention;

[0031] Figure 12 For the present invention Figure 11 Enlarged schematic diagram at position A.

[0032] In the figure: 100, chassis; 200, grinding cylinder; 300, support structure; 400, transmission structure; 500, servo motor; 600, reciprocating structure; 700, grinding roller; 800, material discharging structure; 900, material receiving structure; 1000, feeding channel; 1100, fan; 1200, hose;

[0033] 301, fixed plate; 302, chute; 303, movable plate; 304, slider;

[0034] 401, transmission box; 402, gear A; 403, gear B;

[0035] 601, cylindrical cam; 602, sleeve; 603, roller;

[0036] 801, air duct A; 802, air duct B; 803, air duct C; 804, sealing strip;

[0037] 901, round sleeve; 902, connecting pipe. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] Please refer to Figures 1 to 8, an embodiment provided by the present invention: a slurry grinding device, including a chassis 100, a grinding cylinder 200 is movably arranged inside the chassis 100, a hose 1200 is arranged at the feeding end of the grinding cylinder 200, the hose 1200 passes through the top end of the chassis 100, a groove is formed at the top end of the chassis 100, the hose 1200 movably passes through the groove, the hose 1200 is connected to the discharging end of a feeding device for external materials, the hose 1200 can move in the groove along with the movement of the grinding cylinder 200, and the movement of the grinding cylinder 200 does not affect normal feeding; a plurality of sieve holes are formed at the discharging end of the grinding cylinder 200, and the aperture of the sieve holes is selected and used by technicians in this field according to actual situations; a grinding roller 700 passes through the bottom of the grinding cylinder 200, a grinding gap is arranged between the outer wall of the grinding roller 700 and the inner wall of the bottom of the grinding cylinder 200, after the grinding roller 700 cooperates with the grinding cylinder 200 to grind natural starch particles, the fine starch particles fall along the grinding gap; a transmission structure 400 is fixedly arranged outside the chassis 100, a servo motor 500 is fixedly arranged on the transmission structure 400, and the servo motor 500 is selected and used by technicians in this field according to actual situations; the servo motor 500 is in transmission cooperation with one end of the grinding roller 700 through the transmission structure 400, the other end of the grinding roller 700 is rotationally connected to the chassis 100 through a rotating shaft, the grinding roller 700 rotates under the action of the servo motor 500 cooperating with the transmission structure 400, and the servo motor 500 is in reciprocating cooperation with the grinding cylinder 200 through the transmission structure 400 and a reciprocating structure 600; the starch particles enter the grinding cylinder 200, the grinding roller 700 rotates to grind the starch particles in the grinding gap between the outer wall of the grinding roller 700 and the inner wall of the bottom of the grinding cylinder 200, and at the same time, the grinding cylinder 200 reciprocates horizontally relative to the grinding roller 700 to further grind the starch particles.

[0040] The transmission structure 400 includes a transmission box 401, which is fixedly arranged on the chassis 100. Inside the transmission box 401, a gear A 402 and a gear B 403 are respectively rotatably arranged. The gear A 402 and the gear B 403 are meshed and connected. Both ends of the connecting shaft A sleeved with the gear A 402 pass through the transmission box 401. Sealing bearings A are arranged at the penetration positions of both ends of the connecting shaft A and the transmission box 401. One end of the connecting shaft A sleeved with the gear A 402 is connected to the transmission shaft of the servo motor 500, and the other end of the connecting shaft A sleeved with the gear A 402 is connected to one end of the grinding roller 700. One end of the connecting shaft B sleeved with the gear B 403 passes through the transmission box 401. A sealing bearing B is arranged at the penetration position of one end of the connecting shaft B and the transmission box 401. The other end of the connecting shaft B is rotatably connected to the inner wall of the transmission box 401. The inside of the transmission box 401 is filled with engine oil. An oil inlet and an oil drain port are successively arranged on the transmission box 401, and sealing plugs are arranged at the oil inlet and the oil drain port. One end of the connecting shaft B sleeved with the gear B 403 is connected to the reciprocating structure 600. The reciprocating structure 600 includes a cylindrical cam 601 and a sleeve 602. One end of the cylindrical cam 601 is fixedly connected to one end of the connecting shaft B sleeved with the gear B 403. One end of the sleeve 602 is fixedly connected to the grinding cylinder 200. A roller 603 is fixedly arranged on the inner wall of the sleeve 602, and the roller 603 is in sliding fit with the groove on the cylindrical cam 601. The servo motor 500 drives the connecting shaft A to rotate, and the grinding roller 700 rotates accordingly. Moreover, the gear A 402 rotates synchronously with the connecting shaft A. The gear B 403 meshed with the gear A 402 rotates, and the connecting shaft B rotates. Then the cylindrical cam 601 rotates accordingly. The groove on the cylindrical cam 601 slides relative to the roller 603, so that the sleeve 602 reciprocates relative to the cylindrical cam 601, driving the grinding cylinder 200 to reciprocate.

[0041] Both sides of the grinding cylinder 200 are respectively connected to both sides of the inner wall of the chassis 100 through the support structure 300. The support structure 300 includes a fixed plate 301 and a movable plate 303. One end of the fixed plate 301 is fixedly arranged on the inner wall of the chassis 100. One end of the movable plate 303 is fixedly arranged on the side wall of the grinding cylinder 200. A chute 302 is opened on the top side of the fixed plate 301. A slider 304 is fixedly arranged on the bottom side of the movable plate 303. The slider 304 is in sliding fit with the chute 302. During the reciprocating movement of the grinding cylinder 200, the movable plate 303 moves relative to the fixed plate 301, and the slider 304 moves along the chute 302, so that the grinding cylinder 200 reciprocates stably.

[0042] By arranging the grinding cylinder 200, the grinding roller 700, the transmission structure 400 and the reciprocating structure 600, the present invention has the advantages that while the grinding roller 700 rotates, the grinding cylinder 200 reciprocates horizontally relative to the grinding roller 700, further grinding the starch granules, and solves the problem that when grinding natural starch granules, only the grinding in the rotating direction of the grinding roller 700 is carried out, the force on the natural starch granules during grinding is relatively single, and there is a problem of insufficient grinding.

[0043] Please refer to Figure 2 、 Figure 3 、 Figure 9 、 Figure 11 and Figure 12 ,An embodiment provided by the present invention: A slurry grinding device, a discharge channel 1000 is fixedly provided at the discharge end of the grinding cylinder 200, the inner cavity of the discharge channel 1000 corresponds to a plurality of sieve holes at the discharge end of the grinding cylinder 200, a discharge structure 800 is provided at the bottom of the chassis 100, the discharge structure 800 includes an air duct B802 and an air duct C803, the air duct B802 is fixedly provided on one side of the bottom of the chassis 100, the air duct C803 is fixedly provided on the other side of the bottom of the chassis 100, the air duct B802 and the air duct C803 correspond to each other, an air duct A801 is movably provided between the air duct B802 and the air duct C803, the opposite ends of the air duct B802 and the air duct C803 are respectively inserted and matched with both ends of the air duct A801, sealing strips 804 are respectively fixedly provided at the opposite ends of the air duct B802 and the air duct C803, and the opposite ends of the air duct B802 and the air duct C803 are respectively in sealing cooperation with both ends of the inner cavity of the air duct A801 through the sealing strips 804; The air duct A801 is movable relative to the air duct B802 and the air duct C803, and the connection between the air duct A801 and the air duct B802 and the air duct C803 is sealed through the sealing strip 804 to reduce air leakage; The cross-section of the sealing strip 804 is triangular, the inclined surface of the sealing strip 804 faces outward, when the air blown in the air duct B802, the air duct A801 and the air duct C803 carries materials through the sealing strip 804, the air and the materials pass along the inclined surface of the sealing strip 804, and it is not easy to cause material blockage; The air duct A801 is connected to the discharge channel 1000, the discharge channel 1000, the air duct A801, the air duct B802 and the air duct C803 are communicated, the air duct B802 is connected to a fan 1100 through a pipeline, and the fan 1100 is selected and used by professional technicians according to actual conditions, and the air duct C803 corresponds to an external material receiving mechanism. The starch particles falling from the sieve holes after grinding pass through the discharge channel 1000, the fan 1100 blows air towards the directions of the air duct B802, the air duct A801 and the air duct C803, and the negative pressure generated in the air duct B802, the air duct A801 and the air duct C803 sucks away the starch particles passing through the discharge channel 1000. The negative pressure can assist the starch particles to fall from the sieve holes, and the starch particles blown out from the air duct C803 are collected by the external material receiving mechanism.

[0044] By setting the discharge channel 1000, the air duct A801, the air duct B802, the air duct C803 and the fan 1100, the present invention has the advantage of efficiently collecting the ground starch particles.

[0045] Please refer to Figure 9 and Figure 10, an embodiment provided by the present invention: a slurry grinding device, receiving structures 900 are respectively provided at the grinding rollers 700 on both sides of the grinding cylinder 200. The receiving structure 900 includes a circular sleeve 901. The circular sleeve 901 is sleeved on the grinding roller 700, and the circular sleeve 901 is fixedly connected to the grinding cylinder 200. There is a gap between the inner wall of the circular sleeve 901 and the outer wall of the grinding roller 700. The gap between the inner wall of the circular sleeve 901 and the outer wall of the grinding roller 700 is communicated with the inner cavity of the feeding channel 1000 through a connecting pipe 902. When air passes through the air duct A801, suction will also be generated in the feeding channel 1000. When the starch particles escaping from the gap at the connection between the grinding roller 700 and the grinding cylinder 200 pass through the gap between the inner wall of the circular sleeve 901 and the outer wall of the grinding roller 700, the starch particles are sucked away from the connecting pipe 902 by the suction force and enter the feeding channel 1000, and these starch particles are discharged together. The oversized starch particles will not escape from the gap at the connection between the grinding roller 700 and the grinding cylinder 200, and the escaping starch particles belong to the qualified starch particles.

[0046] By providing the circular sleeve 901 and the connecting pipe 902, the present invention has the advantage that the starch particles escaping from the gap at the connection between the grinding roller 700 and the grinding cylinder 200 are collected, reducing the waste of starch particles, and solves the problem of waste of the starch particles escaping from the gap at the connection between the grinding roller 700 and the grinding cylinder 200.

[0047] Working principle: The natural starch granules to be ground are fed into the grinding cylinder 200 from the hose 1200 through an external feeding device. The servo motor 500 drives the connecting shaft A to rotate, and the grinding roller 700 rotates accordingly. Moreover, the gear A 402 rotates synchronously with the connecting shaft A, and the gear B 403 meshing with the gear A 402 rotates, causing the connecting shaft B to rotate. Then the cylindrical cam 601 rotates. The groove on the cylindrical cam 601 slides relative to the roller 603, causing the sleeve 602 to reciprocate relative to the cylindrical cam 601, driving the grinding cylinder 200 to reciprocate. During the reciprocating movement of the grinding cylinder 200, the movable plate 303 moves relative to the fixed plate 301, and the slider 304 moves along the chute 302, enabling the grinding cylinder 200 to reciprocate stably. The grinding roller 700 cooperates with the grinding cylinder 200 to apply a circumferential force to grind the natural starch granules. The reciprocating movement of the grinding cylinder 200 grinds the starch granules transversely, further grinding the starch granules. The starch granules falling through the sieve holes are passed through the blanking channel 1000. The blower 1100 blows air towards the directions of the air duct B 802, the air duct A 801, and the air duct C 803. The negative pressure generated in the air duct B 802, the air duct A 801, and the air duct C 803 sucks away the starch granules passing through the blanking channel 1000. The starch granules blown out from the air duct C 803 are collected by an external material receiving mechanism. Moreover, the air duct A 801 reciprocates with the grinding cylinder 200. While the air duct A 801 reciprocates, its two ends are always connected to the air duct B 802 and the air duct C 803 to form a complete air duct. When air passes through the air duct A 801, suction is also generated in the blanking channel 1000. When the starch granules escaping from the gap at the connection between the grinding roller 700 and the grinding cylinder 200 pass through the gap between the inner wall of the circular sleeve 901 and the outer wall of the grinding roller 700, the starch granules are sucked away from the connecting pipe 902 and enter the blanking channel 1000, and this part of the starch granules is discharged together.

[0048] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A slurry grinding device, characterized in that: The invention comprises a case (100), wherein a grinding cylinder (200) is arranged inside the case (100), a hose (1200) is arranged at the feeding end of the grinding cylinder (200), a grinding roller (700) is passed through the bottom of the grinding cylinder (200), a transmission structure (400) is arranged outside the case (100), a servo motor (500) is arranged on the transmission structure (400), the servo motor (500) is in transmission cooperation with the grinding roller (700) through the transmission structure (400), and the servo motor (500) is in reciprocating cooperation with the grinding cylinder (200) through the transmission structure (400) and a reciprocating structure (600); The transmission structure (400) comprises a transmission box (401), the transmission box (401) is arranged on the chassis (100), a gear A (402) and a gear B (403) are respectively arranged in the transmission box (401), the gear A (402) and the gear B (403) are meshed and connected, one end of the connecting shaft A sleeved by the gear A (402) is connected to the transmission shaft of the servo motor (500), the other end of the connecting shaft A sleeved by the gear A (402) is connected to the grinding roller (700), and one end of the connecting shaft B sleeved by the gear B (403) is connected to the reciprocating structure (600); The reciprocating structure (600) comprises a cylindrical cam (601) and a sleeve (602); the cylindrical cam (601) is connected to one end of a connecting shaft B sleeved with the gear B (403); the sleeve (602) is connected to the grinding cylinder (200); a roller (603) is provided on the inner wall of the sleeve (602); the roller (603) is slidably matched with a groove on the cylindrical cam (601).

2. A slurry grinding device according to claim 1, characterized in that: The hose (1200) is inserted into the top of the chassis (100); a groove is provided at the top of the chassis (100), and the hose (1200) is movably inserted into the groove.

3. A slurry grinding device according to claim 1, characterized in that: The two sides of the grinding cylinder (200) are respectively connected to the two sides of the inner wall of the chassis (100) through a support structure (300); the support structure (300) comprises a fixed plate (301) and a movable plate (303); the fixed plate (301) is arranged on the inner wall of the chassis (100); the movable plate (303) is arranged on the side wall of the grinding cylinder (200); the fixed plate (301) is provided with a slide groove (302); the movable plate (303) is provided with a slider (304); the slider (304) is slidably matched with the slide groove (302).

4. A slurry grinding device according to claim 1, characterized in that: A discharge channel (1000) is provided at the discharge end of the grinding cylinder (200), a discharge structure (800) is provided at the bottom of the chassis (100), the discharge structure (800) comprises an air duct B (802) and an air duct C (803), the air duct B (802) is provided at one side of the bottom of the chassis (100), the air duct C (803) is provided at the other side of the bottom of the chassis (100), an air duct A (801) is movably provided between the air duct B (802) and the air duct C (803), the air duct A (801) is connected to the discharge channel (1000), and the air duct B (802) is connected to the fan (1100) via a pipeline.

5. A slurry grinding device according to claim 4, characterized in that: The opposite ends of the air duct B (802) and the air duct C (803) are respectively provided with sealing strips (804), and the opposite ends of the air duct B (802) and the air duct C (803) are respectively sealed with the two ends of the inner cavity of the air duct A (801) through the sealing strips (804).

6. A slurry grinding device according to claim 5, characterized in that: The sealing strip (804) has a triangular cross-section, and the inclined surface of the sealing strip (804) faces outwards.

7. A slurry grinding device according to claim 4, characterized in that: The grinding rollers (700) on both sides of the grinding cylinder (200) are respectively provided with a material receiving structure (900), and the material receiving structure (900) comprises a circular sleeve (901), and the circular sleeve (901) is sleeved on the grinding roller (700), and the circular sleeve (901) is connected to the grinding cylinder (200), and the circular sleeve (901) is connected to the material discharge channel (1000) through a connecting pipe (902).

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