Large sand mill and method of using the same

Abstract

The present invention discloses a large-scale sand mill, which relates to the technical field of sand mills, including a device housing, a rotor structure, a lining structure and a material screening structure. The present invention also discloses a method for using a large-scale sand mill, including the following steps: material feeding, material grinding and material unloading. The present invention sets a device housing, and a rotor structure and a lining structure are set inside the device housing. The material and the grinding medium can be ground inside the device housing. When the material is ground, the rotor structure can push the material and the grinding medium to move, so that the material and the grinding medium are thrown up inside the device housing to increase the collision probability between the material and the grinding medium, thereby achieving the effect of improving the material grinding effect. In the material grinding process, the rotor structure and the lining structure can collide with the material, thereby improving the material grinding effect.

Description

Technical Field

[0001] The invention relates to the technical field of sand mills, and in particular to a large sand mill and a use method thereof. Background Art

[0002] Sand mills can be roughly divided into horizontal sand mills, basket sand mills, vertical sand mills, etc. according to their performance. They are mainly composed of a machine body, a grinding cylinder, a sand mill disc (paddle), grinding media, a motor and a feed pump. The speed of feeding is controlled by the feed pump. The grinding media of this equipment is generally divided into zirconia beads, glass beads, zirconium silicate beads, etc.

[0003] The patent document with patent number CN203508099U discloses a vertical sand mill, including a cylinder, a heat dissipation device, a feed pipe, etc. The heat dissipation device is located outside the cylinder and connected to the cylinder, the feed pipe is arranged at the bottom of the cylinder, the discharge pipe is arranged at the upper part of the cylinder, the main shaft passes through the cylinder and is connected to the motor, the grinding disc is located in the cylinder and fixed on the main shaft, the motor is located below the cylinder, and a stirring blade is arranged in the cylinder, the stirring blade is fixed on the main shaft and located below the grinding disc. The slurry at the bottom of the cylinder is turned over to move upward to participate in the grinding of the grinding disc, and the accumulation of solid materials at the bottom of the cylinder is placed, which improves the working efficiency and makes the particle size distribution of the particles in the slurry after grinding more uniform and better dispersed.

[0004] There are some problems in the actual application of the above technical solution. The material and the grinding medium are only driven by the grinding disk during the grinding operation. The collision probability between the material and the grinding medium is constant, and the material only achieves the grinding effect through the collision with the grinding medium. The grinding effect is general. At the same time, when the device runs at a high speed for a long time, the drive motor is prone to burn out due to overheating, affecting the service life of the device. In addition, the collision speed and force of the material during the grinding process are constant, resulting in poor grinding effect.

[0005] Therefore, it is necessary to invent a large-scale sand mill and its use method to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a large sand mill and a method for using the same to solve the problems mentioned above.

[0007] To achieve the above object, the present invention provides the following technical solution: a large sand mill, comprising an equipment housing, the equipment housing comprising an outer shell, a transmission shaft is provided through the middle of the outer shell, and further comprising:

[0008] A rotor structure, wherein the rotor structure comprises a shaft sleeve, and the shaft sleeve is sleeved and arranged on the outer side of the transmission shaft, a movable rotor is fixedly arranged on the outer side of the shaft sleeve, and the movable rotor is arranged in a regular polygonal structure, a plurality of slots are arranged around the outer side wall of the movable rotor, a hammer is inserted and arranged inside the slot, a plurality of movable lining plates are movably arranged around the outer side wall of the movable rotor, and the plurality of movable lining plates and the plurality of slots are arranged in a staggered manner;

[0009] A lining plate structure, wherein the lining plate structure is provided in a plurality of groups, each group of the lining plate structure comprises an inner lining plate, the inner lining plate is provided in an arc-shaped structure, and the inner lining plate is provided on the inner side of the outer shell;

[0010] A screening material structure, wherein the screening material structure comprises a screening material cover, and the screening material cover is arranged through the middle of the bottom end of the outer shell;

[0011] An adjustment structure, wherein the adjustment structure includes an electromagnetic plate, a first airbag and a second airbag, wherein the electromagnetic plate is fixedly arranged at the bottom of the inner lining plate, the hammer and the movable lining plate are both made of permanent magnetic materials, a plurality of the first airbag and the second airbag are arranged, a plurality of mounting grooves are arranged around the outer side surface of the movable rotor, and the positions of the plurality of mounting grooves respectively correspond to the plurality of movable lining plates, a plurality of first airbags are respectively fixedly arranged in the corresponding mounting grooves, a plurality of second airbags are respectively fixedly arranged in the corresponding slots, each of the first airbags and the second airbag diagonally opposite thereto form a group, and an airflow channel is arranged between each group of the first airbag and the second airbag.

[0012] Preferably, a plurality of flanges are fixedly provided on both sides of the hammer, and the outer sides of the flanges are provided with an arc-shaped structure.

[0013] Preferably, two circular grooves are provided at the bottom end of the hammer, a first tension spring is arranged inside the circular groove, and the bottom end of the first tension spring is fixedly arranged at the bottom of the groove of the slot, limiting grooves are provided on the inner walls on both sides of the slot, a limiting slide is arranged inside the limiting groove, and the limiting slide is fixedly arranged at the outer bottom end of the hammer.

[0014] Preferably, a plurality of cavities are arranged around the interior of the movable rotor, and the plurality of cavities are staggered with the plurality of slots, through slots are arranged at both ends of each of the cavities, a movable block is arranged inside each of the through slots, and one end of the two movable blocks located in the same cavity are fixedly arranged on one side of the corresponding movable lining.

[0015] Preferably, a movable plate is movably provided at the bottom end of each movable block through a pin shaft, a movable frame is movably provided at the bottom end of each movable plate through a pin shaft, and each movable frame is arranged inside a corresponding cavity, and a socket is penetrated at one end of two movable frames close to each other in the same cavity, an insertion rod is penetrated inside the insertion hole, and a second tension spring is fixedly provided at both ends of the insertion rod and between the two movable frames.

[0016] Preferably, a plurality of connecting seats are fixedly provided on the inner side wall of the outer shell, a connecting block is fixedly provided on one end of the inner lining plate, and the connecting block is movably provided on the outer side of the connecting seat through a pin shaft, a plurality of first hinge seats are fixedly provided on the inner side wall of the outer shell, an electric telescopic rod is movably provided inside the first hinge seat through a pin shaft, a second hinge seat is fixedly provided on the top of the inner lining plate, and the bottom end of the electric telescopic rod is movably provided inside the second hinge seat through a pin shaft.

[0017] Preferably, a sieve plate with an arc-shaped structure is slidably provided on the inner top end of the sieve cover, and the sieve plate corresponds to the inner side wall of the outer shell.

[0018] Preferably, extension frames are fixedly provided on both sides of the lower surface of the screen plate, an extension plate is fixedly provided in the middle of the bottom end of the extension frame, a swing arm is movably provided on the inner side of the extension plate through a pin shaft, a turntable is movably provided on the bottom end of the swing arm through a pin shaft, a rotating rod is fixedly provided in the middle of the turntable, and the rotating rod is penetrated through the middle part of the screen cover through a bearing, a pulley is fixedly provided at one end of the rotating rod, and the pulley is provided on the outside of the screen cover, a positioning groove with a strip structure is penetrated through the outside of the screen cover, a positioning rod is penetrated through the inside of the positioning groove, and the positioning rod is fixedly provided on the outside of the extension plate.

[0019] Preferably, a feed cover is provided through the top of one side of the outer shell, a support foot is fixedly provided at the bottom end of the outer shell, a transmission disc is fixedly provided at one end of the transmission shaft, and the transmission disc is provided on the outside of the outer shell.

[0020] The invention also discloses a method for using a large sand mill, comprising the following steps:

[0021] Step 1: Material placement: Place the material to be ground and the grinding medium into the interior of the equipment housing;

[0022] Step 2: Grinding the material. The rotor structure rotates inside the equipment housing. The rotor structure drives the material to move and collides and grinds it, so that the material moves inside the equipment housing. During this process, the material collides with the liner structure and the rotor structure to achieve a grinding effect.

[0023] Step 3: Unloading: When the material moves to the bottom of the equipment casing, the screening structure screens the material. The material that meets the grinding standard is discharged from the bottom of the device, while the material that does not meet the grinding standard continues to move with the rotor structure to achieve continuous grinding of the material.

[0024] Technical effects and advantages of the present invention:

[0025] 1. The present invention provides an equipment shell, and a rotor structure and a lining structure are provided inside the equipment shell. The material and the grinding medium can be ground inside the equipment shell. When the material is ground, the rotor structure can push the material and the grinding medium to move, so that the material and the grinding medium are thrown up inside the equipment shell to increase the collision probability between the material and the grinding medium, thereby achieving the effect of improving the material grinding effect. During the material grinding process, the rotor structure and the lining structure can collide with the material, thereby improving the material grinding effect. The movable lining pushes the material to move under the action of the restoring force of the second tension spring, further accelerating the speed at which the material is thrown out, thereby increasing the impact force between the material and the inner lining plate and the inner wall of the shell, thereby improving the grinding effect.

[0026] 2. The present invention sets a rotor structure, and a plurality of movable hammers are set on the outer side of the rotor structure. When the rotor structure rotates, the hammers are thrown out under the action of centrifugal force. At this time, the hammers can push the materials and collide with the materials to improve the grinding effect of the device. After the equipment is stopped, the hammers can be reset under the action of the first tension spring, which facilitates the discharge of materials and the cleaning of the equipment.

[0027] 3. After the electromagnetic plate is energized, the electromagnetic plate generates a magnetic attraction force on the hammer passing through it, so that the driving motor of the device does not need to maintain a high speed all the time to make the hammer extend to the maximum extent from the movable rotor, effectively increasing the contact area between the hammer and the material, increasing the amount of material thrown out by the hammer and the collision and grinding area between the hammer and the material, improving the grinding effect, and effectively avoiding overheating of the driving motor due to maintaining a high speed for a long time, preventing the risk of burning the driving motor, and extending the service life of the device.

[0028] 4. After the electromagnetic plate of the present invention is energized, the electromagnetic plate generates a magnetic thrust on the movable liner passing through it, so that the movable liner moves in the direction close to the movable rotor to the maximum extent. During this process, the gas in the first airbag is introduced into the second airbag, and the second airbag prompts the hammer to extend greatly, so that the hammer located under the movable rotor can drive more materials to move upward and throw them away, thereby improving the grinding efficiency of the materials. At the same time, after the movable liner is separated from the magnetic thrust of the electromagnetic plate, the movable liner can move quickly in the direction away from the movable rotor under the action of the restoring tension of the second tension spring, providing an outward thrust to the material on the movable liner. Under the action of the thrust of the movable plate and the centrifugal force, the material and the grinding medium can be quickly thrown outward, thereby increasing the speed and collision force of the material and the grinding medium being thrown out, and further improving the grinding effect of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The overall structure of the present invention is schematically shown in cross section. Figure 1 .

[0030] Figure 2 It is a schematic diagram of the device housing structure of the present invention.

[0031] Figure 3 The overall structure of the present invention is schematically shown in cross section. Figure 2 .

[0032] Figure 4 It is a schematic diagram of the internal structure of the device housing of the present invention.

[0033] Figure 5 It is a schematic diagram of the inner lining plate structure of the present invention.

[0034] Figure 6 For the present invention Figure 3 A magnified schematic diagram of center A.

[0035] Figure 7 It is a schematic diagram of the screening material structure of the present invention.

[0036] Figure 8 It is a schematic diagram of the sieve plate structure of the present invention.

[0037] Fig. 9 It is a schematic diagram of the rotor structure of the present invention.

[0038] Fig.10 It is a schematic diagram of the slot position of the present invention.

[0039] Fig.11 It is a schematic diagram of the cavity position of the present invention.

[0040] Fig.12 It is a schematic diagram of the movable lining structure of the present invention.

[0041] Fig.13 It is a schematic diagram of the position of the regulating structure of the present invention.

[0042] Fig.14 It is a schematic diagram of the position of the electromagnetic plate of the present invention.

[0043] Fig.15 Schematic diagram of the position of the air flow channel of the present invention Figure 1 .

[0044] Fig.16 Schematic diagram of the air flow channel position of the present invention Figure 2 .

[0045] Fig.17 Schematic diagram of the position of the air flow channel of the present invention Figure 3

[0046] Fig.18 Schematic diagram of the position of the air flow channel of the present invention Figure 4 .

[0047] In the figure: 1, equipment shell; 2, rotor structure; 3, lining plate structure; 4, screening material structure; 5, adjustment structure; 101, outer shell; 102, transmission shaft; 103, connecting seat; 104, first hinge seat; 105, feed cover; 106, support foot; 107, transmission plate; 108, second hinge seat; 201, shaft sleeve; 202, movable rotor; 203, slot; 204, hammer; 205, flange; 206, circular groove; 207, first tension spring; 208, limit slot; 209, limit slider; 210, cavity; 211, through slot; 212, movable Movable block; 213, movable lining plate; 214, movable plate; 215, movable frame; 216, jack; 217, plug rod; 218, second tension spring; 301, inner lining plate; 302, connecting block; 303, electric telescopic rod; 401, sieve cover; 402, sieve plate; 403, extension frame; 404, extension plate; 405, swing arm; 406, turntable; 407, rotating rod; 408, pulley; 409, positioning groove; 410, positioning rod; 501, electromagnetic plate; 502, first airbag; 503, second airbag; 504, mounting groove; 505, airflow channel. DETAILED DESCRIPTION

[0048] 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.

[0049] Embodiment 1, the present invention provides as Figures 1 to 12A large sand mill shown includes an equipment housing 1, a rotor structure 2, a lining structure 3 and a screening structure 4. The rotor structure 2 is arranged in the middle of the inner side of the equipment housing 1, a plurality of lining structures 3 are arranged, and the plurality of lining structures 3 are all arranged on the inner wall of the equipment housing 1, and the screening structure 4 is arranged at the bottom end of the equipment housing 1.

[0050] The equipment shell 1 includes an outer shell 101, and a transmission shaft 102 is arranged through the middle of the outer shell 101; a feed cover 105 is arranged through the top of one side of the outer shell 101, and a support foot 106 is fixedly arranged at the bottom of the outer shell 101, and a transmission disk 107 is fixedly arranged at one end of the transmission shaft 102, and the transmission disk 107 is arranged on the outside of the outer shell 101, and the transmission disk 107 can drive the transmission shaft 102 by connecting the drive motor through a belt.

[0051] The rotor structure 2 includes a sleeve 201, and the sleeve 201 is sleeved on the outside of the transmission shaft 102. A clamping block is fixedly arranged inside the sleeve 201, and a clamping groove is opened on the outer wall of the transmission shaft 102. The clamping block and the clamping groove cooperate with each other, so that the transmission shaft 102 can drive the sleeve 201 to rotate. A movable rotor 202 is fixedly arranged on the outside of the sleeve 201, and the movable rotor 202 is arranged as a regular polygon structure; specifically, a plurality of slots 203 are arranged around the outer wall of the movable rotor 202, and a hammer 204 is inserted inside the slot 203. A plurality of flanges 205 are fixedly arranged on both sides of the hammer 204, and the outer side of the flange 205 is arranged as an arc structure. The arc structure improves the impact resistance of the surface of the flange 205 and increases the collision area with the material.

[0052] More specifically, two circular grooves 206 are provided at the bottom end of the hammer 204, a first tension spring 207 is arranged inside the circular groove 206, and the bottom end of the first tension spring 207 is fixedly arranged at the bottom of the slot 203, and limiting grooves 208 are provided on the inner walls on both sides of the slot 203, and a limiting slider 209 is arranged inside the limiting groove 208, and the limiting slider 209 is fixedly arranged at the outer bottom end of the hammer 204. The limiting slider 209 cooperates with the limiting groove 208 to limit the movement range of the hammer 204 and prevent the hammer 204 from being thrown out of the slot 203.

[0053] In addition, a plurality of cavities 210 are arranged around the interior of the movable rotor 202, and the plurality of cavities 210 and the plurality of slots 203 are arranged in an alternating manner, through slots 211 are arranged at both ends of each cavity 210, a movable block 212 is arranged inside each through slot 211, one end of each movable block 212 penetrates into the interior of the corresponding cavity 210, and a movable lining plate 213 is fixedly arranged at one end of two movable blocks 212 located in the same cavity 210, and the movable lining plate 213 is arranged on the outer side of the movable rotor 202.

[0054] Moreover, a movable plate 214 is movably provided at the bottom end of each movable block 212 through a pin shaft, a movable frame 215 is movably provided at the bottom end of each movable plate 214 through a pin shaft, and each movable frame 215 is arranged inside the corresponding cavity 210, and a plug hole 216 is penetrated at the ends of the two movable frames 215 located in the same cavity 210 that are close to each other, and an insertion rod 217 is penetrated inside the insertion hole 216, and the insertion rod 217 is fixedly provided inside the corresponding cavity 210, and a second tension spring 218 is fixedly provided at both ends of the insertion rod 217 and between the two movable frames 215. In the natural state, under the tension of the second tension spring 218, the two movable frames 215 in the same cavity 210 are respectively located on both sides of the cavity 210. At this time, the two movable frames 215 push the corresponding movable block 212 to move through the corresponding movable plate 214, thereby causing the movable lining plate 213 to move in a direction away from the movable rotor 202.

[0055] The lining plate structure 3 includes an inner lining plate 301, which is arranged in an arc-shaped structure and is arranged on the inner side of the outer shell 101; specifically, the inner side wall of the outer shell 101 is fixedly provided with a plurality of connecting seats 103, one end of the inner lining plate 301 is fixedly provided with a connecting block 302, and the connecting block 302 is movably arranged on the outer side of the connecting seat 103 through a pin shaft, and the inner side wall of the outer shell 101 is fixedly provided with a plurality of first hinge seats 104, and the interior of the first hinge seat 104 is movably provided with an electric The electric telescopic rod 303 is a movable telescopic rod, and a second hinge seat 108 is fixedly provided on the top of the inner lining plate 301. The bottom end of the electric telescopic rod 303 is movably arranged inside the second hinge seat 108 through a pin shaft. The electric telescopic rod 303 is electrically connected to an external controller. The electric telescopic rod 303 is extended and retracted to adjust the angle of the inner lining plate 301, thereby adjusting the distance between the inner lining plate 301 and the movable rotor 202, and further adjusting the impact force on the material to be suitable for grinding different materials.

[0056] The screening structure 4 includes a screening cover 401, and the screening cover 401 is arranged through the middle of the bottom end of the outer shell 101; specifically, a screening plate 402 with an arc structure is slidably arranged at the top inner side of the screening cover 401, and the screening plate 402 corresponds to the inner side wall of the outer shell 101, and extension frames 403 are fixedly arranged on both sides of the lower surface of the screening plate 402, and an extension plate 404 is fixedly arranged at the middle of the bottom end of the extension frame 403, and a swing arm 405 is movably arranged on the inner side of the extension plate 404 through a pin shaft, and the swing arm A turntable 406 is movably provided at the bottom end of 405 through a pin shaft, and the swing arm 405 is eccentrically provided through the pin shaft and the turntable 406. A rotating rod 407 is fixedly provided in the middle of the turntable 406. The rotating rod 407 and the turntable 406 are concentrically provided, and the rotating rod 407 is penetrated through the middle of the sieve cover 401 through a bearing, and a pulley 408 is fixedly provided at one end of the rotating rod 407, and the pulley 408 is provided on the outside of the sieve cover 401, and the pulley 408 is used to connect to an external driving mechanism such as a motor.

[0057] More specifically, a strip-shaped positioning groove 409 is provided on the outer side of the screen cover 401, a positioning rod 410 is provided inside the positioning groove 409, and the positioning rod 410 is fixedly provided on the outer side of the extension plate 404. The positioning rod 410 cooperates with the positioning groove 409 to limit the movement of the extension plate 404, so that the extension plate 404, the extension frame 403 and the screen plate 402 can only move up and down.

[0058] The present invention also provides a method for using a large sand mill, comprising the following steps:

[0059] Step 1: Material delivery: the material to be ground and the grinding medium are delivered to the inside of the equipment housing 1; the material can be delivered to the inside of the outer shell 101 through the feed cover 105, and the delivery of the material and the grinding medium can be realized at this time.

[0060] Step 2: Grinding the material. The rotor structure 2 rotates inside the equipment housing 1. The rotor structure 2 drives the material to move and performs collision grinding on it, so that the material moves inside the equipment housing 1. During this process, the material collides with the liner structure 3 and the rotor structure 2 to achieve a grinding effect.

[0061] When the material is ground, the transmission disc 107 at one end of the transmission shaft 102 can be connected to the driving motor through a belt to drive the device. The transmission shaft 102 drives the movable rotor 202 to rotate through the shaft sleeve 201, and the movable rotor 202 can drive the hammer 204 to rotate. At this time, the hammer 204 is thrown outward under the action of centrifugal force, that is, the length of the hammer 204 extending out of the movable rotor 202 increases. At this time, the hammer 204 moving downward will contact the material and the grinding medium, and push the material and the grinding medium to move, so that the material and the grinding medium follow the movement of the hammer 204 to collide with the material. When the hammer 204 drives the material upward, the material and the grinding medium are thrown obliquely upward under the action of centrifugal force and inertia, and collide with the inner lining plate 301. The material is ground during the collision, and In the above process, the material collides with the grinding medium for multiple times to achieve further grinding of the material. At the same time, in the process of the hammer 204 driving the material and the grinding medium to move upward, the material and the grinding medium will squeeze the movable lining 213, causing the movable lining 213 to move toward the movable rotor 202. At this time, the second tension spring 218 is stretched. When the material is thrown away, under the action of the restoring force of the second tension spring 218, the movable lining 213 will push the material to move, thereby accelerating the speed at which the material is thrown away, and then increasing the impact force between the material and the inner lining plate 301 and the inner wall of the outer shell 101. After the grinding is completed, the movable rotor 202 stops rotating. At this time, the centrifugal force on the hammer 204 disappears, and the length of the hammer 204 extending out of the movable rotor 202 is shortened, so as to facilitate the discharge of materials and the cleaning of equipment.

[0062] Step three, unloading, when the material moves to the bottom of the equipment housing 1, the screening structure 4 screens the material, and the material that meets the grinding standard is discharged from the bottom of the device, while the material that does not meet the grinding standard continues to move with the rotor structure 2 to achieve continuous grinding of the material.

[0063] When the material moves to the bottom of the equipment housing 1 during the grinding process, the material moves to the top of the screen plate 402 at this time. The material that meets the grinding standard can pass through the screen plate 402 and be discharged from the bottom of the screen cover 401. During this process, the pulley 408 is connected to the driving motor, and the pulley 408 drives the turntable 406 to rotate through the rotating rod 407, and the turntable 406 drives the swing arm 405 to move through the pin shaft, and the swing arm 405 drives the extension plate 404 to move. Since a positioning rod 410 is provided on the outer side of the extension plate 404, and the positioning rod 410 is restricted by the positioning groove 409 and can only move up and down, the extension plate 404 can only move up and down under the action of the swing arm 405, and the extension plate 404 drives the screen plate 402 to move up and down through the extension frame 403, so that the material above the screen plate 402 is constantly moving, thereby avoiding the blockage of the screen plate 402 caused by material accumulation. At the same time, the screen plate 402 can push the material upward to facilitate the rotor structure 2 to push the material to move.

[0064] Embodiment 2, the above scheme realizes grinding of materials in the equipment housing 1 through the rotor structure 2 and the lining structure 3. The rotor structure 2 pushes the material and the grinding medium to move and throw them away, thereby increasing the collision probability between the material and the grinding medium. The movable lining 213 pushes the material to move under the restoring force of the second tension spring 218, further accelerating the speed at which the material is thrown out, thereby increasing the impact force between the material and the inner lining 301 and the inner wall of the outer shell 101. At the same time, the rotor structure 2, the lining structure 3 and the material collide, thereby improving the grinding effect of the material. However, in the process of grinding the material, the driving motor of the device needs to drive the rotor structure 2 to always maintain a high speed to ensure that the hammer 204 can overcome the pulling force of the first tension spring 207 under the action of centrifugal force. , so that the length of the hammer 204 extending outside the movable rotor 202 is increased, and the hammer 204 can push the material and the grinding medium to move and throw them away. Maintaining a high speed for a long time will cause a large load on the drive motor of the device, which is easy to cause the drive motor to burn out and shorten the service life of the drive motor. In addition, when the material to be ground is small, since the material moving to the movable lining 213 is small, the weight of the material is not enough to overcome the tension of the second tension spring 218, that is, the movable lining 213 is difficult to move a large distance in the direction of the movable rotor 202, resulting in the movable lining 213 being unable to generate a large thrust during the process of the material being thrown away, thereby failing to effectively increase the speed at which the material is thrown away, which is not conducive to providing better grinding conditions for the material, resulting in poor material grinding effect. Therefore, further improvements are made to the scheme of the present invention to achieve the purpose of increasing the extended length of the hammer 204 without the need for the driving motor of the device to always maintain a high speed, thereby avoiding the risk of burning out of the device and extending the service life of the device. At the same time, it is ensured that when there is less material, the movable liner 213 can still provide a greater thrust to the material, so that the material can be thrown out at a higher speed, providing better grinding conditions for the material and ensuring the grinding effect of the material.

[0065] like Fig.10 and Figures 13 to 18As shown, an adjustment structure 5 is provided between the rotor structure 2 and the lining structure 3, and the adjustment structure 5 includes an electromagnetic plate 501, a first airbag 502 and a second airbag 503. The electromagnetic plate 501 is fixedly arranged at the bottom of the inner lining plate 301, the hammer 204 and the movable lining plate 213 are both made of permanent magnetic materials, and the surfaces of the hammer 204 and the movable lining plate 213 are provided with a wear-resistant layer, and the electromagnetic plate 501 can be connected to an external power supply. When the electromagnetic plate 501 is connected to an external power supply, a magnetic force will be generated, and a magnetic attraction force will be generated on the corresponding hammer 204, and a magnetic thrust will be generated on the corresponding movable lining plate 213. A plurality of first airbags 502 and a second airbag 503 are provided, and a plurality of mounting grooves 504 are arranged around the outer side surface of the movable rotor 202. The positions of the plurality of mounting grooves 504 correspond to the plurality of movable lining plates 213, respectively. 502 are respectively fixedly arranged in the corresponding installation groove 504, and a retaining ring is fixedly arranged on the outer periphery of the installation groove 504. The inner wall of the retaining ring is in contact with the side of the corresponding movable liner 213. The setting of the retaining ring can prevent materials and grinding media from entering the installation groove 504. When the movable liner 213 moves in the direction of the movable rotor 202, the corresponding first airbag 502 can be squeezed. A plurality of second airbags 503 are respectively fixedly arranged in the corresponding slots 203. When the second airbags 503 expand, the corresponding hammers 204 can be pushed to extend outward from the movable rotor 202. Each movable liner 213 and the hammer 204 located diagonally opposite to it form a group, that is, each first airbag 502 and the second airbag 503 located diagonally opposite to it form a group, and an airflow channel 505 is provided between each group of first airbags 502 and second airbags 503.

[0066] When the device is in a shutdown state, the adjustment structure 5 is in a natural state. At this time, the multiple movable linings 213 are at the farthest position from the movable rotor 202 under the action of the second tension spring 218, and will not cause squeezing to the corresponding first airbag 502. At this time, the length of the multiple hammers 204 extending out of the movable rotor 202 is the shortest, and there is no squeezing with the corresponding second airbag 503, and the air pressure between the first airbag 502 and the second airbag 503 is in a balanced state.

[0067] In the process of grinding the material, when the electromagnetic plate 501 is not energized, the electromagnetic plate 501 has no magnetism, that is, the electromagnetic plate 501 will not generate magnetic force on the hammer 204 and the movable lining plate 213. At this time, the hammer 204 extends from the corresponding slot 203 under the centrifugal force generated by the rotation of the movable rotor 202, and the length of the hammer 204 at this time depends on the size of the centrifugal force, that is, depends on the rotation speed of the movable rotor 202. Therefore, it is necessary to keep a high speed of the drive motor at all times, so as to achieve a longer extension of the hammer 204 from the slot 203, so as to achieve pushing and grinding of the material. If the drive motor rotates at a high speed for a long time, it will cause a large workload on the drive motor, which may easily cause the drive motor to burn out. At the same time, under the gravity of the material, the movable lining plate 213 will move towards the direction close to the movable rotor 202. At this time, the movable lining plate 213 will contact the corresponding first air The bag 502 is squeezed, so that the gas in the first air bag 502 enters the second air bag 503 through the air flow channel 505. At this time, the second air bag 503 expands, so that the hammer 204 is further extended outward on the basis of the original extension, so as to increase the contact area between the hammer 204 and the material. As the movable rotor 202 rotates, the material will be thrown out. In this process, the pressure of the material on the movable lining 213 is reduced. At this time, the movable lining 213 will provide thrust for the material to be thrown out, thereby increasing the speed of the material when it is thrown out, thereby improving the grinding effect of the material. However, when the material and grinding medium in the equipment housing 1 are less, it will not be enough to push the movable lining 213 to move toward the movable rotor 202, and it will not be able to provide thrust for the material to be thrown out, thereby failing to increase the speed of the material when it is thrown out, and at the same time, it will not be able to help the hammer 204 to extend further outward on the basis of the original extension.

[0068] At this time, the electromagnetic plate 501 is energized to generate magnetism. As the movable rotor 202 rotates, multiple hammers 204 and movable lining plates 213 will pass through the magnetic force range of the electromagnetic plate 501 in turn. When the hammer 204 passes through the electromagnetic plate 501, the electromagnetic plate 501 will generate magnetic attraction to it, so that the hammer 204 can extend out of the corresponding slot 203 to the maximum extent, thereby increasing the contact area between it and the material; when the movable lining plate 213 passes through the electromagnetic plate 501, the electromagnetic plate 501 will generate magnetic thrust to it, prompting the material to follow the movable lining plate 213 to move to the maximum extent in the direction close to the movable rotor 202. In this process, the corresponding second tension spring 218 is stretched, and at this time the movable lining plate 213 will greatly squeeze the corresponding first airbag 502, so that a large amount of gas in the first airbag 502 enters the second airbag 503 through the airflow channel 505, thereby causing the second airbag 503 to expand. The movable liner 213 is disengaged from the magnetic force range of the electromagnetic plate 501. At this time, under the action of the restoring force of the second tension spring 218, the movable liner 213 will move back to the direction away from the movable rotor 202. During this process, the squeezing of the first airbag 502 by the movable liner 213 gradually decreases and disappears. The hammer 204 will push the gas in the second airbag 503 into the first airbag 502 through the airflow channel 505, so that the first airbag 502 expands. At this time, under the action of the pulling force of the second tension spring 218 and the thrust of the first airbag 502, the movable liner 213 will quickly move away from the movable rotor 202, thereby quickly pushing out the material and grinding media on the movable liner 213, thereby increasing the speed at which the material is thrown out.

[0069] After the electromagnetic plate 501 is energized, the electromagnetic plate 501 generates a magnetic attraction force on the hammer 204 passing through it, so that the driving motor of the device does not need to always maintain a high speed to make the hammer 204 extend to the maximum extent from the movable rotor 202, effectively increasing the contact area between the hammer 204 and the material, increasing the amount of material thrown out by the hammer 204 and the collision and grinding area between the hammer 204 and the material, improving the grinding effect, and effectively avoiding the overheating of the driving motor due to maintaining a high speed for a long time, preventing the risk of the driving motor burning, and extending the service life of the device;

[0070] At the same time, the electromagnetic plate 501 generates a magnetic thrust on the movable liner 213 passing through it, so that the movable liner 213 moves in the direction close to the movable rotor 202 with the greatest amplitude. During this process, the gas in the first airbag 502 is introduced into the second airbag 503, and the second airbag 503 prompts the hammer 204 to extend greatly, so that the hammer 204 located below the movable rotor 202 can drive more materials to move upward and throw them away, thereby improving the grinding efficiency of the materials. At the same time, when the movable liner 213 is separated from the magnetic thrust of the electromagnetic plate 501, the movable liner 213 can move quickly in the direction away from the movable rotor 202 under the restoring tension of the second tension spring 218, providing an outward thrust to the materials on the movable liner 213. Under the action of the thrust of the movable liner 213 and the centrifugal force, even when there are fewer materials and grinding media, the materials and grinding media can be quickly thrown out, thereby increasing the speed and collision force of the materials and grinding media being thrown out, and further improving the grinding effect of the materials.

[0071] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A large sand mill, comprising a device housing (1), wherein the device housing (1) comprises an outer shell (101), a transmission shaft (102) is provided through the middle of the outer shell (101), and the characteristics are: Also includes: A rotor structure (2), the rotor structure (2) comprising a shaft sleeve (201), the shaft sleeve (201) being sleeved and arranged on the outside of a transmission shaft (102), a movable rotor (202) being fixedly arranged on the outside of the shaft sleeve (201), and the movable rotor (202) being arranged in a regular polygonal structure, a plurality of slots (203) being arranged around the outer wall of the movable rotor (202), a hammer (204) being inserted and arranged inside the slot (203), a plurality of movable lining plates (213) being movably arranged around the outer wall of the movable rotor (202), and the plurality of movable lining plates (213) and the plurality of slots (203) being arranged in a staggered manner; A plurality of flanges (205) are fixedly provided on both sides of the hammer (204), and the outer sides of the flanges (205) are arranged in an arc-shaped structure; two circular grooves (206) are provided at the bottom end of the hammer (204), a first tension spring (207) is arranged inside the circular groove (206), and the bottom end of the first tension spring (207) is fixedly arranged at the bottom of the groove of the slot (203); limiting grooves (208) are provided on the inner walls of both sides of the slot (203), a limiting slide block (209) is arranged inside the limiting groove (208), and the limiting slide block (209) is fixedly arranged at the outer bottom end of the hammer (204); a plurality of cavities (210) are arranged around the inside of the movable rotor (202), and the plurality of cavities (210) and the plurality of slots (203) are arranged in an alternating manner, and each of the two ends of the cavity (210) is penetrated by a through groove (2 11), a movable block (212) is provided through the interior of each through slot (211), and one end of the two movable blocks (212) located in the same cavity (210) is fixedly provided on one side of the corresponding movable lining plate (213); a movable plate (214) is provided at the bottom end of each movable block (212) through a pin shaft, and a movable frame (215) is provided at the bottom end of each movable plate (214) through a pin shaft, and each movable frame (215) is provided in the corresponding cavity (210), and a plug hole (216) is provided through the ends of the two movable frames (215) located in the same cavity (210) close to each other, and an insertion rod (217) is provided through the interior of the insertion hole (216), and a second tension spring (218) is fixedly provided between the two ends of the insertion rod (217) and the two movable frames (215); A lining plate structure (3), wherein the lining plate structure (3) is provided in a plurality of groups, each group of the lining plate structures (3) comprises an inner lining plate (301), the inner lining plate (301) being provided in an arc-shaped structure, and the inner lining plate (301) being provided on the inner side of the outer shell (101); A sieving material structure (4), the sieving material structure (4) comprising a sieving material cover (401), and the sieving material cover (401) is arranged through the middle of the bottom end of the outer shell (101); The regulating structure (5) comprises an electromagnetic plate (501), a first airbag (502) and a second airbag (503), wherein the electromagnetic plate (501) is fixedly arranged at the bottom of the inner lining plate (301), the hammer (204) and the movable lining plate (213) are both made of permanent magnetic materials, and the electromagnetic plate (501) can be connected to an external power supply. When the electromagnetic plate (501) is connected to the external power supply, magnetic force is generated, and magnetic attraction force is generated on the corresponding hammer (204), and magnetic thrust is generated on the corresponding movable lining plate (213). The first airbag (502) and the second airbag (503) ) are provided with a plurality of them, a plurality of mounting grooves (504) are provided around the outer side surface of the movable rotor (202), the positions of the plurality of mounting grooves (504) respectively correspond to the plurality of movable lining plates (213), a plurality of first airbags (502) are respectively fixedly provided in the corresponding mounting grooves (504), a plurality of second airbags (503) are respectively fixedly provided in the corresponding slots (203), each of the first airbags (502) and the second airbag (503) located diagonally opposite thereto form a group, and an airflow channel (505) is provided between each group of the first airbags (502) and the second airbags (503).

2. A large sand mill according to claim 1, characterized in that: A plurality of connection seats (103) are fixedly provided on the inner side wall of the outer shell (101); a connection block (302) is fixedly provided on one end of the inner lining plate (301), and the connection block (302) is movably provided on the outer side of the connection seat (103) via a pin shaft; a plurality of first hinge seats (104) are fixedly provided on the inner side wall of the outer shell (101), and an electric telescopic rod (303) is movably provided inside the first hinge seat (104) via a pin shaft; a second hinge seat (108) is fixedly provided on the top of the inner lining plate (301), and the bottom end of the electric telescopic rod (303) is movably provided inside the second hinge seat (108) via a pin shaft.

3. A large sand mill according to claim 1, characterized in that: A sieve plate (402) with an arc structure is slidably provided at the inner top end of the sieve cover (401), and the sieve plate (402) corresponds to the inner side wall of the outer shell (101).

4. A large sand mill according to claim 3, characterized in that: Extension frames (403) are fixedly provided on both sides of the lower surface of the sieve plate (402); an extension plate (404) is fixedly provided at the middle of the bottom end of the extension frame (403); a swing arm (405) is movably provided on the inner side of the extension plate (404) via a pin shaft; a turntable (406) is movably provided on the bottom end of the swing arm (405) via a pin shaft; a rotating rod (407) is fixedly provided at the middle of the turntable (406); the rotating rod (407) is penetrated and arranged in the middle of the sieve cover (401) via a bearing; a pulley (408) is fixedly provided at one end of the rotating rod (407); the pulley (408) is arranged on the outside of the sieve cover (401); a positioning groove (409) with a strip structure is penetrated and arranged on the outside of the sieve cover (401); a positioning rod (410) is penetrated and arranged inside the positioning groove (409); and the positioning rod (410) is fixedly provided on the outside of the extension plate (404).

5. A large sand mill according to claim 1, characterized in that: A feed cover (105) is provided through the top of one side of the outer shell (101), a support foot (106) is fixedly provided at the bottom end of the outer shell (101), a transmission disc (107) is fixedly provided at one end of the transmission shaft (102), and the transmission disc (107) is arranged on the outside of the outer shell (101).

6. A method for using a large sand mill, applied to a large sand mill according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: placing the material to be ground and the grinding medium into the interior of the equipment housing (1); Step 2: grinding the material. The rotor structure (2) rotates inside the equipment housing (1). The rotor structure (2) drives the material to move and performs collision grinding on the material, so that the material moves inside the equipment housing (1). During this process, the material collides with the liner structure (3) and the rotor structure (2), thereby achieving a grinding effect. Step 3: Discharging the material. When the material moves to the bottom of the equipment housing (1), the screening structure (4) screens the material. The material that meets the grinding standard is discharged from the bottom of the device, while the material that does not meet the grinding standard continues to move with the rotor structure (2) to achieve continuous grinding of the material.

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