CN210846550U - Environment-friendly disc crusher - Google Patents

Abstract

The utility model provides an environment-friendly disc grinder, which comprises a grinding cavity, a static grinding disc and a movable grinding disc which are arranged in the grinding cavity, wherein the movable grinding disc is connected with a power mechanism through a rotating shaft; the automatic material receiving mechanism is arranged below a discharge port of the grinding cavity and comprises a cyclone separator connected with the discharge port of the grinding cavity, a negative pressure device connected with an exhaust port at the upper end of the cyclone separator, an upper supporting plate provided with a through hole and tightly connected with the periphery of a discharge port of the cyclone separator, and a lower supporting plate arranged below the upper supporting plate; the upper surface of the grinding cavity is provided with a cleaning mechanism which comprises a movable plate arranged above the grinding cavity and a lifting device for driving the movable plate to lift up and down, the movable plate is provided with a plurality of air pipes, the top ends of the air pipes are provided with air inlets, and the lower ends of the air pipes penetrate through a top plate of the grinding cavity and extend into the grinding cavity. The utility model provides a current disc grinder clearance and blanking all produce a large amount of dust polluted environment's problem, have that the structure is ingenious, compact reasonable, environmental protection efficient advantage.

Description

Environment-friendly disc crusher

Technical Field

The utility model relates to an environment-friendly disc grinder that grinds mineral into powder that uses in mineral chemical examination field.

Background

In the field of mineral assay, minerals need to be ground into powder, and a plurality of technologies can achieve the effect, wherein the environment-friendly disc grinder is one of the technologies and is characterized by high grinding speed and convenient discharge and cleaning.

The existing common disc grinder is provided with a motor, a movable grinding disc is arranged at the front end of the motor, a static grinding disc is arranged in a grinding cavity, a feeding hopper is arranged at the front end of the grinding cavity, falling materials are fed from the feeding hopper manually, the falling materials directly flow out through an outlet in the grinding process, the side face of the grinding cavity can be opened, and the cavity is cleaned manually. The blanking device has the problems of simple and crude structure, large dust in the blanking process, manual cleaning and uneven manual feeding. Therefore, a disc mill capable of automatically receiving materials and automatically cleaning becomes a goal pursued by those skilled in the art.

Disclosure of Invention

Therefore, the utility model discloses a first order is to solve current disc crusher can not self-cleaning to and can not accomplish the technical problem of dustless ejection of compact, open through the manual work and grind the chamber clearance and grind the chamber and direct blanking all can lead to raise dust and polluted environment's problem.

The utility model discloses a another purpose is overcome current environment-friendly disc grinder can not automatic feed, and artifical manual feeding has the inhomogeneous problem of feeding.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides an environment-friendly disc rubbing crusher, its includes a grinding mechanism, grinding mechanism includes: the front end face of the grinding cavity is provided with a feeding hole and the bottom of the grinding cavity is provided with a discharge hopper, one side of the feeding hole in the grinding cavity is provided with a static grinding disc with a central hole, and a movable grinding disc which is arranged opposite to the static grinding disc at intervals is connected with a power mechanism through a rotating shaft and can rotate, and the rotating shaft is arranged on a rotating shaft supporting seat through a bearing; the method is characterized in that: the discharge hopper of the grinding cavity is connected with an automatic material receiving mechanism; the automatic material receiving mechanism comprises a cyclone separator connected with an outlet below the discharge hopper, a negative pressure device connected with an exhaust port at the upper end of the cyclone separator, an upper supporting plate which is provided with a through hole, closely connected with the periphery of a feed opening at the lower end of the cyclone separator and used for fixing the cyclone separator, and a lower supporting plate used for placing a sample receiving bottle and arranged below the upper supporting plate; the grinding device comprises a grinding cavity, a movable plate and a lifting device, wherein the movable plate is arranged above a top plate of the grinding cavity, the lifting device is used for driving the movable plate to lift up and down relative to the top plate of the grinding cavity, a plurality of air pipes are arranged on the movable plate, air inlets are formed in the top ends of the air pipes located on the movable plate, the lower ends of the air pipes penetrate through the top plate of the grinding cavity and perform lifting movement in the grinding cavity, and spray holes are formed in the lower ends of the air pipes.

The environment-friendly disc grinder of the utility model also comprises a frame as an optimized mode, and the grinding mechanism is fixed on the upper surface of the upper mounting plate of the frame; the automatic material receiving mechanism is located below the upper mounting plate, and the upper support plate is hung below the upper mounting plate of the rack.

Preferably, the lifting device comprises two lifting cylinders arranged on the top plate of the grinding cavity, and two ends of the movable plate are connected with the telescopic ends of the two lifting cylinders; an upper fixed plate and a grinding cavity top plate are arranged above the movable plate in parallel, a vertical guide rail is arranged between the upper fixed plate and the grinding cavity top plate, and the movable plate is connected with the guide rail in a sliding mode and can move up and down along the guide rail under the driving of the lifting cylinder.

Preferably, the bottom end of the air pipe is closed, and the spray holes are formed in the side face of the lower end of the air pipe.

In order to clean the grinding cavity in all directions without dead angles, as a preferable mode, the air pipe is further connected with a rotation driving device capable of driving the air pipe to rotate by 360 degrees, and the rotation driving device comprises: a driving motor is arranged on the movable plate, a motor toothed belt wheel is arranged at the output shaft end of the driving motor, a driven toothed belt wheel is arranged at the upper end of the air pipe, and a toothed belt is wound between the motor toothed belt wheel and the driven toothed belt wheel and used for driving the air pipe to rotate.

Preferably, the number of the air pipes is at least two, each pair of air pipes is symmetrically arranged along the center line of the movable grinding disc, the position of one pair of air pipes is positioned in front of the static grinding disc, and the pair of air pipes is positioned just above the gap between the movable grinding disc and the static grinding disc when the movable grinding disc moves backwards; and the other air pipes are arranged at the positions corresponding to the rear part or the side cavity of the movable grinding disc.

As a preferred mode, an upper support plate of the automatic material receiving mechanism is provided with two guide rods and two fixed rods which are vertically arranged, and the upper support plate is arranged at the lower ends of the fixed rods and the middle parts of the guide rods; the lower support plate is movably arranged on the guide rod in a penetrating way; and the lower supporting plate is connected with an electric push rod capable of driving the lower supporting plate to move up and down.

Preferably, one side of the cyclone separator is provided with a vibrator.

In order to realize uniform automatic feeding, the environment-friendly disc grinder is characterized in that a feeding mechanism is arranged at a feeding port of the grinding cavity as an optimal mode, the feeding mechanism comprises a hopper and a spiral feeder connected to the outlet end at the downstream of the hopper, one end of a spiral shaft of the spiral feeder is connected with a feeding driver, and one end of the spiral feeder opposite to the feeding driver is provided with a discharging port; the discharge hole is communicated with the feed inlet of the grinding cavity.

Environment-friendly disc grinder, as preferred mode, power unit includes a driving motor, the tail end of pivot certainly pivot supporting seat tip stretches out the tail end of pivot and driving motor's output shaft end are equipped with transmission, the pivot is equipped with transmission strutting arrangement.

The environment-friendly disc grinder of the utility model adopts a preferable mode, and the transmission device comprises belt pulleys arranged at the end part of the rotating shaft and the end part of the driving motor shaft and a belt connected between the two belt pulleys; the transmission support device comprises: the belt pulley comprises a rotating shaft, a fixed belt pulley support, a shaft sleeve, a flange plate and a bearing, wherein the fixed belt pulley support is arranged at the tail end of the rotating shaft and is adjacent to the belt pulley, the shaft sleeve capable of axially moving relative to the rotating shaft is arranged between the belt pulley support and the rotating shaft, the end part of the shaft sleeve is provided with the flange plate connected with the end surface of the belt pulley, and the bearing is arranged between the shaft sleeve and the belt.

By adopting the above technical scheme, the utility model, through set up self-cleaning mechanism above grinding the chamber, especially directly carry high-pressure air quiet mill and move between the mill through the trachea, and the cleanness is gone on under grinding the relative inclosed state in chamber to reduced the manual work and opened the pollution that the clean production in grinding the chamber, also reduced workman's intensity of labour. Particularly, an automatic material receiving mechanism is connected below a discharge port of the grinding cavity, the automatic material receiving mechanism enables materials to be automatically sucked by providing a cyclone separator with negative pressure, the automatic material receiving mechanism is combined with a cleaning mechanism, the ground materials are discharged in a fully-closed state, automatic cleaning is carried out in the closed state, the production efficiency is greatly improved, and environmental pollution is avoided.

The utility model discloses further through increasing automatic feeder, through the spiral pay-off, make the pay-off even, accomplish automatically, reduce workman's intensity of labour.

Its rational in infrastructure of environment-friendly disc rubbing crusher, arrange ingenious, degree of automation is high, does benefit to environmental protection, has reduced workman intensity of labour.

Drawings

FIG. 1 is a schematic view of the overall structure of an environment-friendly disc crusher provided by the present invention;

FIG. 2 is a cross-sectional view of the feed mechanism;

FIG. 3 is a cross-sectional view of the grinding mechanism;

fig. 4 is a perspective view of the automatic receiving mechanism;

FIG. 5 is a perspective view of the cleaning mechanism;

figure 6 is a schematic view of the air duct arrangement of the cleaning mechanism.

Description of reference numerals: the device comprises a feeding mechanism 1, a hopper 11, a spiral feeder 12, a coupling 13, a feeding driver 14 and a discharging port 121; the grinding mechanism 2, the grinding cavity 21, the feeding port 211, the discharging hopper 212, the discharging port 213, the grinding cavity top plate 214, the static grinding disc 22, the movable grinding disc 23, the rotating shaft 24, the bearing 241, the adjusting device 25, the sliding block 251, the screw 252, the screw 253, the adjusting bearing seat 254, the coupling 255, the servo motor 256, the guide rail 257, the connecting plate 258 and the end plate 2581; a rotating shaft support base 26; the device comprises a power mechanism 3, a driving motor 31, a transmission device 32, a belt pulley 321, a belt 322, a transmission supporting device 33, a belt pulley bracket 331, a shaft sleeve 332 and a bearing 333; the automatic material receiving mechanism 4, a pipeline 41, a cyclone separator 42, a negative pressure device 43, an electric push rod 44, a vibrator 45, a guide rod 46, an upper supporting plate 47, a sample bottle 48, a lower supporting plate 49 and a fixing rod 410; the cleaning device comprises a cleaning mechanism 5, a lifting device 51, a lifting cylinder 511, an upper fixed plate 512, a guide rail 513, an air pipe 52a, an air pipe 52b, an air pipe 52c, an air inlet 521, a spray hole 522, a movable plate 53, a connecting piece 531, a rotary driving device 54, a driving motor 541, a motor toothed belt wheel 542 and a driven toothed belt wheel 543; frame 6, upper mounting plate 61.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be made with reference to the accompanying drawings, but the scope of the present invention should not be limited by the preferred embodiments.

As shown in fig. 1, the utility model provides a disc grinder capable of automatically discharging material, which comprises a grinding mechanism 2, wherein the grinding mechanism 2 comprises a grinding cavity 21, a static grinding disc 22 and a movable grinding disc 23 which are arranged in the grinding cavity, and the movable grinding disc 23 is connected with a power mechanism 3 through a rotating shaft 24 and can rotate; the rotary shaft 24 is mounted on the rotary shaft support base 26 through a bearing 241. It also comprises a frame 6, the grinding chamber 21 being fixed to an upper mounting plate 61 of the frame 6.

Specifically, as shown in fig. 1 and 3, the grinding chamber 21 of the grinding mechanism 2 is mounted on an upper mounting plate 61 of the frame 6; the grinding cavity 21 is provided with a feeding hole 211 and a discharging hole 213, the grinding cavity 21 is composed of a front end plate, a rear end plate, a left end plate, a right end plate, a top plate 214 and a discharging hopper 212 at the bottom, the feeding hole 211 is arranged on the front end plate, and the discharging hole 213 is arranged at the bottom of the lower end of the discharging hopper; the grinding cavity 21 is internally provided with a static grinding disc 22 which is arranged at the position of a feeding hole 211 and is in a static state, the central hole of the static grinding disc 22 is communicated with the feeding hole 211 arranged on a front end plate, one side of the static grinding disc 22 opposite to the feeding hole of the grinding cavity is oppositely provided with a movable grinding disc 23 at intervals, the movable grinding disc 23 is connected with a rotating shaft 24, the rotating shaft 24 is arranged on a rotating shaft supporting seat 26 through a bearing 241, and the rotating shaft 24 is connected with a power mechanism 3 and is used for driving the movable grinding disc 23 to rotate so as to grind materials between opposite friction surfaces of the movable grinding disc 23 and the static; in this embodiment, a flying-disc-shaped spacing cavity with a wide center and a narrow edge is formed between the movable grinding disc 23 and the static grinding disc 22 for storing the material to be ground, the distance between the edges of the two is the minimum to form the relative friction surface, after the material enters between the movable grinding disc 23 and the static grinding disc 22, the material is thrown out to the edge position under the rotation of the movable grinding disc 23, and is ground by the relative friction surface to form particles with a particle size smaller than the distance between the relative friction surface, and finally is thrown out from the edge gap between the movable grinding disc 23 and the static grinding disc 22, and is discharged through the discharge port 213 of the discharge hopper 212. The invention of the utility model is characterized in that: a cleaning mechanism 5 and an automatic blanking mechanism 4 are added.

As shown in fig. 1, 4 and 5, the cleaning mechanism 5 is disposed above the grinding chamber 21, the cleaning mechanism 5 has a movable plate 53 disposed parallel to the top plate of the grinding chamber, and a lifting device 51 is connected to the movable plate 53 to enable the movable plate 53 to lift up and down relative to the top plate of the grinding chamber, a plurality of air pipes 52 are disposed on the movable plate 53, an air inlet 521 is disposed at the top end of each air pipe 52 for communicating compressed air, the lower end of each air pipe 52 can pass through the top plate of the grinding chamber to move up and down in the grinding chamber, the lower end of each air pipe 52 has a spray hole 522, and in order to improve the cleaning effect, the air pipe is preferably closed at the bottom end, and the spray holes 522 are disposed at; the automatic material receiving mechanism 4 is arranged on a bottom plate 62 of the frame 6 and is positioned below the upper mounting plate 61, the automatic material receiving mechanism 4 comprises a cyclone separator 42 connected with a discharge port 213 through a pipeline 41, the upper end of the cyclone separator 42 is provided with an exhaust port, the exhaust port is connected with a negative pressure device 43, the lower end of the cyclone separator 42 is provided with a discharge port, the periphery of the discharge port is closely connected with an upper support plate 47 through a flange, the upper support plate 47 is hung below the upper mounting plate 61 of the frame and is used for supporting and mounting the cyclone separator 42, and the upper support plate 47 is provided with a through hole for butting with the sample receiving bottle 48; a lower support plate 49 is arranged below the upper support plate 47, and the lower support plate 49 can be used for placing the sampling bottle 48.

In order to avoid that the ground material does not generate dust when being discharged from the discharge port 213, an automatic material receiving mechanism 4 is arranged at the downstream of the discharge port 213. Specifically, referring to fig. 5, in the present embodiment, the lifting device 51 of the cleaning mechanism 5 includes two lifting cylinders 511 disposed on the top plate 214 of the grinding chamber, and two ends of the movable plate 53 are connected to telescopic ends of the two lifting cylinders through a connecting member 531; an upper fixed plate 512 is arranged above the movable plate 53 in parallel with the top plate of the grinding chamber, a vertical guide rail 513 is arranged between the upper fixed plate 512 and the top plate of the grinding chamber, and the movable plate 53 is slidably connected with the guide rail 513 and can move up and down along the guide rail 513 under the driving of the lifting cylinder 511.

Referring to fig. 5, in order to make the high-pressure air clean the grinding cavity, the movable grinding disc and the static grinding disc in all directions, the air pipe 52 is further connected with a rotation driving device 54 capable of driving the air pipe 52 to rotate 360 degrees, and the rotation driving device 54 comprises: a driving motor 541 arranged on the movable plate 53, a motor toothed belt wheel 542 arranged at an output shaft end of the driving motor 541, a driven toothed belt wheel 543 arranged at an upper end of each air tube 52, and a toothed belt (not shown) wound between the motor toothed belt wheel 542 and the driven toothed belt wheel 543 for driving the air tube 52 to rotate.

Referring to fig. 6, the air pipes 52 are preferably symmetrically arranged in pairs, at least two pairs, in this embodiment three pairs, each pair of air pipes is symmetrically arranged along the center line of the movable grinding disc 23, and the position of one pair of air pipes 52a is located in front of the stationary grinding disc 22, and when the movable grinding disc 23 moves backwards, the pair of air pipes 52 is located just above the gap between the movable grinding disc 23 and the stationary grinding disc 22; the other pair of air pipes 52b are positioned at two sides of the periphery of the movable grinding disc 23, and the third pair of air pipes 52c are arranged behind the movable grinding disc 23. With the arrangement, when the grinding cavity 21 needs to be cleaned, the movable grinding disc 23 is driven to move backwards to the limit position, then the lifting device 51 drives the air pipe 52 to descend to the positions between the movable grinding disc 22 and the static grinding disc 23, which do not stop moving up and down, and the side surface and the rear surface of the movable grinding disc 23, and meanwhile, the driving motor 541 drives the air pipe 52 to rotate 360 degrees, high-pressure gas sprayed from the spray holes 522 can sweep the inner wall of the grinding cavity 21 without dead angles, and materials attached to the inner wall of the grinding cavity 21 are cleaned.

Specifically, referring to fig. 4, in the automatic blanking mechanism 4: the upper support plate 47 is fixed on the frame 6 through two vertically arranged guide rods 46 and two vertically arranged fixing rods 410; the upper end of the fixed rod 410 is fixed below the upper mounting plate 61 of the frame 6, the lower end is used for connecting with the upper support plate 47, and meanwhile, the upper support plate 47 is also connected to a proper position in the middle of the guide rod 46; the lower support plate 49 is movably arranged on the guide rod 46 in a penetrating way; the lower support plate 49 is also connected with an electric push rod 44 capable of extending and retracting along the vertical direction, and the electric push rod 44 is fixed on the rack 6, so that the lower support plate 49 can vertically ascend and descend along the guide rod 46; in order to make the material in the cyclone 42 fall into the sampling bottle completely, a rapper 45 is provided at one side of the cyclone 42. When receiving materials, the electric push rod 44 is in a push-out state, so that the distance between the lower support plate 49 and the upper support plate 47 is large enough for placing a sample receiving bottle 48 on the lower support plate 49, and then the electric push rod 44 retracts, so that the upper bottle opening of the sample receiving bottle 48 is closely connected with the lower surface of the upper support plate 47 and is connected with the feed opening of the cyclone separator 42; the ground materials enter the cyclone separator 42 through the discharge hopper 212, under the action of negative pressure, the materials enter the sample receiving bottle 48, and the vibrator 45 works at the moment, so that powder adhered to the inner wall of the cyclone separator 42 can be vibrated down; the motorized push rod 44 is then pushed out again, allowing the vial 48 to be removed.

In order to realize uniform and automatic feeding, a feeding mechanism 1 is arranged at a feeding port of the grinding cavity 21, namely the grinding mechanism 2 is positioned at the downstream of the feeding mechanism 11; as shown in fig. 1 and 2, the feeding mechanism 1 includes a hopper 11 and a screw feeder 12 connected to a downstream end of the hopper 11, one end of a screw shaft of the screw feeder 12 is connected to a feeding driver 14 (such as a motor) through a coupling 13, and an end of the screw feeder 12 opposite to the feeding driver 14 is provided with a discharge port 121; the discharge port 121 is communicated with the feed port 211 of the grinding chamber, and after the materials are put into the hopper 11, the feed driver 14 drives the screw shaft to rotate, so that the materials uniformly enter the grinding chamber 21 from the discharge port along the screw shaft, and the purpose of uniform feeding is achieved.

Referring to fig. 3, the power mechanism 3 includes a driving motor 31, and the driving motor 31 is fixed on the upper mounting plate 61 of the frame and is located on the side of the grinding mechanism 2; the tail end of the rotating shaft 24 extends out of the rear end part of the rotating shaft supporting seat 26; a transmission device 32 is arranged at the tail end of the rotating shaft 24 and the output shaft end of the driving motor 31, and the transmission device 32 comprises belt pulleys 321 arranged at the end part of the rotating shaft and the end part of the driving motor shaft and a belt (omitted in the figure) connected between the two belt pulleys 321; in order to improve the stability of the rotating shaft 24 and facilitate the axial movement of the rotating shaft 24, a transmission supporting device 33 is provided at the tail end of the rotating shaft, and the transmission supporting device 33 includes: a fixed belt wheel support 331 is arranged at the tail end of the rotating shaft 24 near the belt wheel 322 and fixed on the upper mounting plate 61 of the frame 6, a shaft sleeve 332 which can move axially relative to the rotating shaft 24 is arranged between the belt wheel support 331 and the rotating shaft 24, namely, the shaft sleeve 322 and the rotating shaft can adopt spline connection, the end part of the shaft sleeve 332 is provided with a flange connected with the end surface of the belt wheel 321, and a bearing 333 is arranged between the shaft sleeve 332 and the belt wheel support 331. The transmission supporting device 33 provides radial support and fixation of the rotating shaft 24, and provides freedom of axial movement of the rotating shaft 24, so that an adjusting device 25 is arranged between the rotating shaft supporting seat 26 and the bracket 6, and is used for axial movement of the rotating shaft supporting seat 26, the rotating shaft 24 and the movable grinding disc 23, and aims to adjust the distance between the movable grinding disc and the static grinding disc.

Referring to fig. 2, the adjustment device 25 is fixed to a mounting plate 61 on the frame 6. The adjusting device 25 is connected with the rotating shaft supporting seat 26 and can drive the rotating shaft supporting seat 26 to move away from and close to the static grinding disc 22, so that the gap between the movable grinding disc 23 and the static grinding disc 22 can be adjusted by moving the rotating shaft supporting seat 26, and the particle size of the ground materials can be adjusted correspondingly; the adjusting device 25 includes: a slide block 251 disposed below the shaft support base 26 and capable of moving along the axial direction of the shaft 24 on the plane of the upper mounting plate 61, and preferably, a guide rail 257 for sliding the slide block is provided above the upper mounting plate 61; a connecting plate 258 is arranged between the sliding block 251 and the rotating shaft supporting seat 26, an end plate 2581 is arranged on the end surface of the connecting plate 258, a nut 252 is fixedly connected to the end plate 2581, a screw rod 253 is connected to the nut 252, the body of the screw rod 253 is fixed in position by adjusting a bearing seat 254, and one end of the screw rod 253 is connected with a servo motor 256 through a coupling 255. When the servo motor 256 rotates, the screw rod 253 rotates along with the servo motor, so that the screw nut 252 is driven to axially move on the screw rod 253, the slide block 251, the rotating shaft supporting seat 26 and the rotating shaft 24 are synchronously displaced, and the size of the gap between the movable grinding disc 23 and the static grinding disc 22 can be adjusted. Obviously, the setting of the adjusting device 25 is only a preferred solution, which is not a necessary technical feature of the present invention, and the utility model aims to provide an environment-friendly disc crusher, therefore, the adjusting device 25 can also adopt a manual screw and nut adjusting mode.

To sum up, the primary objective of the environment-friendly disc grinder provided by the above embodiments of the present invention is to automatically clean the grinding chamber in a closed state without dead angle by the cleaning mechanism 5; automatic dust-free material receiving is realized through the automatic material receiving mechanism 4; the production efficiency is improved, the labor intensity is reduced, and the environmental pollution is avoided. Further, even feeding is realized by arranging the feeding mechanism 1.

The foregoing description is intended to illustrate and not limit the invention, and those skilled in the art will understand that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention, such as by modifying the adjustment device to a manual adjustment, which is within the scope of the invention.

Claims (12)

1. The utility model provides an environment-friendly disc rubbing crusher, its includes a grinding mechanism, grinding mechanism includes: the front end face of the grinding cavity is provided with a feeding hole and the bottom of the grinding cavity is provided with a discharge hopper, one side of the feeding hole in the grinding cavity is provided with a static grinding disc with a central hole, and a movable grinding disc which is arranged opposite to the static grinding disc at intervals is connected with a power mechanism through a rotating shaft and can rotate, and the rotating shaft is arranged on a rotating shaft supporting seat through a bearing; the method is characterized in that: the discharge hopper of the grinding cavity is connected with an automatic material receiving mechanism; the automatic material receiving mechanism comprises a cyclone separator connected with a discharge port below a discharge hopper, a negative pressure device connected with an exhaust port at the upper end of the cyclone separator, an upper supporting plate which is provided with a through hole, closely connected with the periphery of a discharge port at the lower end of the cyclone separator and used for fixing the cyclone separator, and a lower supporting plate used for placing a sample receiving bottle and arranged below the upper supporting plate; the grinding device is characterized in that a cleaning mechanism is arranged on the grinding cavity and comprises a movable plate arranged above a top plate of the grinding cavity and a lifting device used for driving the movable plate to lift up and down relative to the top plate of the grinding cavity, a plurality of air pipes are arranged on the movable plate, air inlets are formed in the top ends of the air pipes positioned on the movable plate, the lower ends of the air pipes penetrate through the top plate of the grinding cavity and move up and down in the grinding cavity, and spray holes are formed in the lower ends of the air pipes.

2. The environment-friendly disc mill according to claim 1, wherein: the grinding mechanism is fixed on the upper surface of an upper mounting plate of the rack; the automatic material receiving mechanism is located below the upper mounting plate, and the upper support plate is hung below the upper mounting plate of the rack.

3. The environment-friendly disc mill according to claim 1 or 2, characterized in that: the lifting device comprises two lifting cylinders arranged on the top plate of the grinding cavity, and two ends of the movable plate are connected with the telescopic ends of the two lifting cylinders; an upper fixed plate and a grinding cavity top plate are arranged above the movable plate in parallel, a vertical guide rail is arranged between the upper fixed plate and the grinding cavity top plate, and the movable plate is connected with the guide rail in a sliding mode and can move up and down along the guide rail under the driving of the lifting cylinder.

4. The environment-friendly disc mill according to claim 1 or 2, characterized in that: the bottom end of the air pipe is closed, and the spray holes are formed in the side face of the lower end of the air pipe.

5. The environment-friendly disc mill according to claim 1 or 2, characterized in that: the trachea is connected with and can drives the trachea carries out the rotation driving device of 360 degrees rotations, rotation driving device includes: a driving motor is arranged on the movable plate, a motor toothed belt wheel is arranged at the output shaft end of the driving motor, a driven toothed belt wheel is arranged at the upper end of the air pipe, and a toothed belt is wound between the motor toothed belt wheel and the driven toothed belt wheel and used for driving the air pipe to rotate.

6. The environment-friendly disc mill according to claim 1 or 2, characterized in that: the air pipes are at least two pairs, each pair of air pipes are symmetrically arranged along the central line of the movable grinding disc, the position of one pair of air pipes is positioned in front of the static grinding disc, and when the movable grinding disc moves backwards, the pair of air pipes are just positioned above a gap between the movable grinding disc and the static grinding disc; and the other air pipes are arranged at the positions corresponding to the rear part or the side cavity of the movable grinding disc.

7. The environment-friendly disc mill according to claim 1 or 2, characterized in that: the upper support plate of the automatic material receiving mechanism is provided with two guide rods and two fixed rods which are vertically arranged, and the upper support plate is arranged at the lower ends of the fixed rods and the middle parts of the guide rods; the lower support plate is movably arranged on the guide rod in a penetrating way; and the lower supporting plate is connected with an electric push rod capable of driving the lower supporting plate to move up and down.

8. The environment-friendly disc mill according to claim 7, wherein: and a vibrator is arranged on one side of the cyclone separator.

9. The environment-friendly disc mill according to claim 1 or 2, characterized in that: a feeding mechanism is arranged at a feeding port of the grinding cavity, the feeding mechanism comprises a hopper and a spiral feeder connected to the downstream outlet end of the hopper, one end of a spiral shaft of the spiral feeder is connected with a feeding driver, and a discharging port is arranged at one end of the spiral feeder opposite to the feeding driver; the discharge hole is communicated with the feed inlet of the grinding cavity.

10. The environment-friendly disc mill according to claim 1 or 2, characterized in that: the power mechanism comprises a driving motor, the tail end of the rotating shaft extends out of the end part of the rotating shaft supporting seat, and transmission devices are arranged at the tail end of the rotating shaft and the output shaft end of the driving motor; and a transmission supporting device is arranged between the transmission device and the rotating shaft supporting seat.

11. The environment-friendly disc mill according to claim 10, wherein: the transmission device comprises belt pulleys arranged at the end part of the rotating shaft and the end part of the driving motor shaft and a belt connected between the two belt pulleys.

12. The environment-friendly disc mill according to claim 11, wherein: the transmission support device comprises: the belt pulley comprises a rotating shaft, a fixed belt pulley support, a shaft sleeve, a flange plate and a bearing, wherein the fixed belt pulley support is arranged at the tail end of the rotating shaft and is adjacent to the belt pulley, the shaft sleeve capable of axially moving relative to the rotating shaft is arranged between the belt pulley support and the rotating shaft, the end part of the shaft sleeve is provided with the flange plate connected with the end surface of the belt pulley, and the bearing is arranged between the shaft sleeve and the belt.

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