CN114210415B

CN114210415B - Ceramic clay processing equipment of misce bene

Info

Publication number: CN114210415B
Application number: CN202111507417.3A
Authority: CN
Inventors: 史洪涛
Original assignee: Chaozhou Liansheng Arts & Crafts Co ltd
Current assignee: Chaozhou Liansheng Arts & Crafts Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2023-06-02
Anticipated expiration: 2041-12-10
Also published as: CN114210415A

Abstract

The invention relates to the field of ceramics, in particular to uniformly mixed ceramic clay processing equipment, which comprises a shell, wherein two sides of the upper end of the shell are provided with feeding inlets, the bottom of the shell is provided with a collecting chamber, the lower part of the collecting chamber is provided with a discharging plate capable of being opened and closed, the upper part of the feeding inlet is provided with a fixedly connected motor, the output end of the motor is fixedly connected with a grinding rod, the lower part of the motor is provided with a transmission cavity, the grinding rod is fixedly connected with a large gear in the transmission cavity, the upper part of the transmission cavity is symmetrically provided with a fixedly connected fixed rod, the fixed rod is rotationally connected with a small gear meshed with the large gear, the lower part of the large gear is provided with a grinding shaft which is rotationally connected around the grinding rod, the upper part of the grinding shaft is provided with a fixedly connected transmission gear panel, the transmission gear panel is meshed with the small gear, and the clay in the cavity is divided into different particles through the multistage grinding cavity, and iron impurities in the clay can be removed simultaneously, and the clay raw materials in the iron impurities can be separated in multiple stages.

Description

Ceramic clay processing equipment of misce bene

Technical Field

The invention relates to the field of ceramics, in particular to uniformly mixed ceramic clay processing equipment.

Background

Ceramics are a collective name of pottery and porcelain, and are also an art work in China, and far in the new stone era, the China has the popular style of rough and naive painted pottery and black pottery. Ceramic and porcelain are different in texture and properties. The ceramic is made of clay with high viscosity and high plasticity as main material, and has opaque, fine pores, weak hydroscopicity and cloudy sound. The porcelain is made of clay, feldspar and quartz, is semitransparent, does not absorb water and resist corrosion, and has hard and compact matrix and a crisp beating effect. The traditional ceramic art works in China are high in quality, attractive in appearance and high in artistic value, are known in the world, are a clay generic term suitable for being used as ceramic raw materials, mainly comprise kaolin, and are prepared by mixing various raw materials together when the ceramic clay raw materials are prepared, so that the following three problems exist in the prior art:

1. when the ceramic clay is mixed in the current ceramic clay mixing process, particles and small blocks with uneven sizes are easy to exist after the mixing due to different particle sizes of different raw materials, so that the ceramic clay is not easy to mix;

2. the current mixing mode is single, is not beneficial to mixing raw materials, has lower mixing efficiency, is easy to spill powder during mixing, and is easy to operate equipment under long-time influence;

3. the iron impurities exist in the ceramic clay raw material, the iron impurities can affect the quality of the ceramic, the iron impurities need to be removed, and when the iron impurities are removed, the raw materials mixed in part of massive iron impurities are easily taken away at the same time, so that loss is caused.

Disclosure of Invention

The invention aims at solving the problems in the prior art and provides a uniformly mixed ceramic clay processing device which is provided with a multi-stage grinding cavity so that clay in the cavity is divided into different particles to be quickly ground, iron impurities in the clay are removed, and clay raw materials in the iron impurities can be subjected to multi-stage separation.

In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a ceramic clay processing equipment of misce bene, includes the casing, the feed inlet of feeding has been seted up to casing upper end both sides, the room that gathers materials has been seted up to the casing bottom, the casing is in but gather materials the room below has been seted up the flitch of switching, the casing is in feed inlet top is equipped with fixed connection's motor, motor output fixed connection grinds the pole, the casing is in the transmission chamber has been seted up to the motor below, it is in to grind the pole fixed connection gear wheel in the transmission chamber, transmission chamber top symmetry sets up fixed connection's dead lever, rotate on the dead lever connect with gear wheel meshing's pinion, the casing is in around the gear wheel below is equipped with the grinding shaft that rotates to connect to grind the pole, the grinding shaft top is equipped with fixed connection's drive tooth panel, drive tooth panel with gear wheel meshing.

Preferably, the first-stage sliding tray has been seted up on grinding axle upper portion, two first briquetting that the symmetry set up are connected in the sliding connection of one-stage sliding tray, first briquetting with be equipped with a set of first spring coupling that the symmetry set up from top to bottom between the one-stage sliding tray, grinding pole fixed connection is in one-stage sliding tray internal rotation's one-stage dwang, one-stage dwang can the butt at the outer end when rotating first briquetting, the casing corresponds first briquetting has been seted up first grinding chamber, second-stage sliding tray has been seted up at grinding axle middle part, two second briquetting that the symmetry set up are connected in the sliding connection of second-stage sliding tray, first briquetting with be equipped with the second spring coupling that the symmetry set up from top to bottom between the one-stage sliding tray, grinding pole fixed connection is in second-stage sliding tray internal rotation's second level dwang, the second level dwang can the butt at the rotation outer end the second briquetting, the casing corresponds the second briquetting has been seted up the second grinding chamber, the casing corresponds first briquetting has been seted up first slider, third slider has been seted up in the sliding connection of second stage sliding tray, third slider has been seted up in the sliding connection of third slider, third slider has been set up in the third slider, third slider has been kept away from the third slider.

Preferably, the first grinding cavity the second grinding cavity the third grinding cavity narrows step by step, the one-level dwang the second level dwang the tertiary dwang shortens step by step, first briquetting the second briquetting the switch groove of diminishing step by step has been seted up to the third briquetting downside, be equipped with sliding connection's switch that can control electromagnet switch diminish step by step in the switch groove, the switch with be equipped with switch spring coupling between the switch groove.

Preferably, the grinding shaft is provided with a first impurity removing channel with an opening smaller than that of a corresponding switch below the first pressing block when the second pressing block is retracted, the first impurity removing channel is provided with a first fine grinding groove above the second-stage rotating rod and at the joint of the grinding rods, the first fine grinding block is connected in the first fine grinding groove in a sliding manner, a fourth spring is arranged between the first fine grinding block and the first fine grinding groove, the grinding shaft is provided with a second impurity removing channel with an opening smaller than that of the corresponding switch below the second pressing block when the second pressing block is retracted, the second impurity removing channel is provided with a second fine grinding groove above the third rotating rod and at the joint of the grinding rods, the second fine grinding block is connected with the second fine grinding block in a sliding manner, a fifth spring is arranged between the second fine grinding block and the second fine grinding groove, the grinding shaft is provided with a third impurity removing channel with an opening smaller than that of the corresponding switch below the third pressing block is retracted, and the second impurity removing channel is provided with a second impurity removing channel through the joint of the third rotating rod and the third rotating rod.

Preferably, the lower end of the grinding rod is fixedly connected with a fan rod, the lower end of the fan rod is fixedly connected with an air suction fan which generates downward suction force when rotating, the shell surrounds the fan rod and is provided with a fixedly connected supporting block for supporting the grinding shaft, the supporting block surrounds the fan rod and is provided with a controllable electromagnet, and the shell surrounds the supporting block below the third grinding cavity and is provided with a blanking channel.

Preferably, the supporting block is provided with a plurality of groups of concave iron storage openings for adsorbing iron impurities around the fan rod.

The beneficial effects are that: according to the invention, the raw materials are ground and extruded in the grinding cavity through the arrangement of the multi-stage grinding cavity and the pressing block, and the ground raw materials enter the next-stage grinding cavity to be continuously ground;

the pressing block in the grinding cavity can adsorb the iron impurities detached from the raw material block during movement, and the raw materials on the impurity block are separated through the impurity removing channel and the fine grinding block;

part of fine particles are downwards adsorbed by the air suction fan, so that the particles are prevented from being scattered on a transmission part of the equipment, and the operation of the equipment is prevented from being influenced.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic diagram of a structural implementation of the present invention;

FIG. 3 is a schematic view of the direction A-A in FIG. 2;

FIG. 4 is an enlarged schematic view of FIG. 2B;

FIG. 5 is an enlarged schematic view of FIG. 2 at C;

FIG. 6 is a schematic view of the external appearance of the part D in FIG. 2;

in the drawing, a housing 10, a feed inlet 11, a discharge plate 12, a collecting chamber 13, a motor 14, a grinding rod 15, a fixed rod 16, a transmission gear panel 17, a pinion 18, a large gear 19, a blanking passage 20, a first spring 21, a second spring 22, a third spring 23, a grinding shaft 24, a primary rotating rod 25, a secondary rotating rod 26, a tertiary rotating rod 27, an electromagnet 28, a first grinding chamber 29, a second grinding chamber 30, a third grinding chamber 31, a first pressing block 32, an electromagnet groove 33, a second pressing block 34, a third pressing block 35, a first fine grinding block 36, a first fine grinding groove 37, a fourth spring 38, a first fine grinding passage 39, a second fine grinding passage 40, a second fine grinding block 41, a second fine grinding groove 42, a fifth spring 43, a fine grinding ball 44, a fan rod 45, a concave iron storage port 46, a controllable electromagnet 47, a supporting block 48, a third fine grinding passage 49, an air suction fan 50, a switch 51, a switch groove 52, a switch spring 53, a transmission chamber 54, a primary sliding groove 55, a secondary sliding groove 57, and a tertiary sliding groove 57.

Detailed Description

The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

In the description of the present invention, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that the inventive product is conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Referring to fig. 1-6, a ceramic clay processing device with uniform mixing comprises a shell 10, wherein two sides of the upper end of the shell 10 are provided with a feeding inlet 11, the bottom of the shell 10 is provided with a collecting chamber 13, the lower part of the collecting chamber 13 is provided with a discharging plate 12 capable of being opened and closed, the upper part of the feeding inlet 11 of the shell 10 is provided with a motor 14 fixedly connected with the output end of the motor 14 and a grinding rod 15 fixedly connected with the output end of the motor 14, the lower part of the motor 14 is provided with a transmission cavity 54, the grinding rod 15 is fixedly connected with a large gear 19 in the transmission cavity 54, the upper part of the transmission cavity 54 is symmetrically provided with a fixed rod 16 fixedly connected with the fixed rod 16, the fixed rod 16 is rotationally connected with a small gear 18 meshed with the large gear 19, the shell 10 is provided with a grinding shaft 24 rotationally connected around the grinding shaft 24, the upper part of the grinding shaft 24 is provided with a transmission gear panel 17 fixedly connected with the small gear 18, and the transmission gear panel 17 is meshed with the small gear 18.

Further, a first stage sliding groove 55 is formed at the upper part of the grinding shaft 24, two first pressing blocks 32 which are symmetrically arranged are connected in a sliding way in the first stage sliding groove 55, a group of first springs 21 which are symmetrically arranged up and down are arranged between the first pressing blocks 32 and the first stage sliding groove 55, a grinding rod 15 is fixedly connected with a first stage rotating rod 25 which rotates in the first stage sliding groove 55, the outer end of the first stage rotating rod 25 is abutted against the first pressing blocks 32 when rotating, a first grinding cavity 29 is formed in the shell 10 corresponding to the first pressing blocks 32, a second stage sliding groove 56 is formed in the middle part of the grinding shaft 24, two second pressing blocks 34 which are symmetrically arranged are connected in a sliding way in the second stage sliding groove 56, a group of second springs 22 which are symmetrically arranged up and down are arranged between the first pressing blocks 32 and the first stage sliding groove 55 are connected, the grinding rod 15 is fixedly connected with a second stage rotating rod 26 which rotates in the second stage sliding groove 56, the outer end of the second-stage rotating rod 26 can be abutted to the second pressing block 34 during rotation, the second grinding cavity 30 is formed in the shell 10 corresponding to the second pressing block 34, the third-stage sliding groove 57 is formed in the lower portion of the grinding shaft 24, two third pressing blocks 35 which are symmetrically arranged in a sliding connection mode are arranged in the third-stage sliding groove 57 in a sliding connection mode, a group of third springs 23 which are symmetrically arranged up and down are arranged between the third pressing blocks 35 and the third-stage sliding groove 57 in a sliding connection mode, the grinding rod 15 is fixedly connected with the third-stage rotating rod 27 which rotates in the third-stage sliding groove 57, the outer end of the third-stage rotating rod 27 can be abutted to the third pressing block 35 during rotation, the third grinding cavity 31 is formed in the shell 10 corresponding to the third pressing block 35, the electromagnet groove 33 is formed in one side, away from the first pressing block 32, of the second pressing block 34, of the third pressing block 35, of the first pressing block 32 is far away from the first-stage rotating rod 25, and the electromagnet 28 is fixedly connected in the electromagnet groove 33.

Further, the third grinding chamber 31 of the second grinding chamber 30 of the first grinding chamber 29 is narrowed step by step, the third rotating rod 27 of the second rotating rod 26 of the first rotating rod 25 is shortened step by step, a switch groove 52 which is narrowed step by step is formed in the lower side of the third pressing block 35 of the second pressing block 34 of the first pressing block 32, a switch 51 which is connected in a sliding mode and can control the switch of the electromagnet 28 to be narrowed step by step is arranged in the switch groove 52, and a switch spring 53 is arranged between the switch 51 and the switch groove 52 for connection.

Further, the grinding shaft 24 is provided with a first impurity removing channel 39 with an opening smaller than that of the corresponding switch 51 below the first pressing block 32 when retracting, the first impurity removing channel 39 is provided with a first fine grinding groove 37 at the joint of the second-stage rotating rod 26 and the grinding rod 15, the first fine grinding groove 37 is connected with the first fine grinding block 36 in a sliding manner, a fourth spring 38 is arranged between the first fine grinding block 36 and the first fine grinding groove 37 and connected, the grinding shaft 24 is provided with a second impurity removing channel 40 with an opening smaller than that of the corresponding switch 51 below the second pressing block 34 when retracting, the second impurity removing channel 40 is provided with a second fine grinding groove 42 at the joint of the second fine grinding block 41 above the third-stage rotating rod 27 and the grinding rod 15, a fifth spring 43 is arranged between the second fine grinding block 41 and the second fine grinding groove 42, the grinding shaft 24 is provided with a third impurity removing channel 49 with an opening smaller than that of the corresponding switch 51 below the third pressing block 35 when retracting, the third impurity removing channel 49 is provided with a plurality of groups of balls and connected with the second impurity removing channels 24 below the third rotating rod 27 and the second fine grinding rod 15 through the joint of the second impurity removing channel 44.

Further, the lower end of the grinding rod 15 is fixedly connected with a fan rod 45, the lower end of the fan rod 45 is fixedly connected with an air suction fan 50 which generates downward suction force when rotating, the shell 10 is provided with a supporting block 48 which is fixedly connected with the grinding shaft 24 around the fan rod 45, the supporting block 48 is provided with a controllable electromagnet 47 around the fan rod 45, and the shell 10 is provided with a blanking passage 20 around the supporting block 48 below the third grinding cavity 31.

Further, the supporting block 48 is provided with a plurality of groups of concave iron storage openings 46 for adsorbing iron impurities around the fan bar 45.

Working principle: the staff puts the ceramic clay raw material into the feed inlet 11, turns on the motor 14, the motor 14 drives the grinding rod 15 to rotate, meanwhile, the fixedly connected large gear 19 rotates, the pinion 18 meshed with the motor is driven to rotate, and the pinion 18 drives the transmission gear panel 17 to rotate, so that the transmission gear panel 17 and the grinding rod 15 reversely rotate, and meanwhile, the transmission gear panel 17 is fixedly connected with the grinding shaft 24, so that the rotation direction of the grinding shaft 24 and the grinding rod 15 is opposite;

the raw materials fall into the first grinding cavity 29, the grinding rod 15 drives the fixedly connected primary rotating rod 25 to rotate, meanwhile, as the first pressing block 32 is arranged in the grinding shaft 24 and is connected through the first spring 21, the primary rotating rod 25 and the first pressing block 32 move in opposite directions, the primary rotating rod 25 pushes the first pressing block 32 to stretch the first spring 21, meanwhile, the first pressing block 32 is extruded into the primary sliding groove 55 to squeeze and collide the raw materials in the first grinding cavity 29, meanwhile, when the primary rotating rod 25 passes through the first pressing block 32, the first pressing block 32 is reset by the tension of the first spring 21, the first pressing block 32 continuously stretches out from the primary sliding groove 55 to retract to squeeze the raw materials along with the rotation of the grinding rod 15, meanwhile, when the first pressing block 32 stretches out, the switch 51 arranged in the switch groove 52 is sprung out by the elasticity of the switch spring 53, so that the electromagnet 28 is electrified to generate magnetism, the magnetic clay blocks broken by the first grinding chamber 29 are absorbed, after the first pressing block 32 is retracted, the switch 51 is pressed into the switch groove 52, the electromagnet is powered off, meanwhile, the magnetic clay blocks absorbed on the electromagnet fall into the first impurity removing channel 39, the impurities in the first grinding chamber 29 enter the second grinding chamber 30 after grinding and extrusion, the similar steps are repeated, finer iron impurities are separated, the separated raw materials enter the third grinding chamber 31 again, the raw materials are subjected to deeper grinding and separation of the iron impurities along with the narrowing of the grinding and extrusion space, meanwhile, the iron-containing clay passing through the first impurity removing channel 39, the second impurity removing channel 40 and the third impurity removing channel 49 is ground at a high speed due to the reverse rotation between the grinding shaft 24 and the grinding rod 15, and meanwhile, the iron-containing clay is extruded and ground by the first fine grinding block 36 in the first fine grinding channel 37 under the pressure of the fourth spring 38, the clay is thinned, iron impurities and clay raw materials are further separated, meanwhile, clay impurities passing through the first fine grinding block 36 and clay impurities passing through the second impurity removing channel 40 are thinned after being extruded and ground through the second fine grinding block 41 under the elastic force of the fifth spring 43, finally, the clay impurities passing through the third impurity removing channel 49 are ground between the fine grinding balls 44, as the lower end of the grinding rod 15 is fixedly connected with the fan rod 45, the lower end of the fan rod 45 is fixedly connected with the suction fan 50 for generating downward suction force, both the impurities and the raw materials above the fan rod 45 move downwards under the influence of gravity and suction force, the iron impurities of the removed raw materials are adsorbed on the concave iron storage hole 46 under the influence of the controllable electromagnet 47 fixedly connected with the supporting block 48, the opening of the concave iron storage hole 46 increases the iron sucking quantity, meanwhile, the iron impurities are prevented from being sucked down under the influence of large wind force, finally, the worker obtains the clay raw materials after grinding and deironing in the aggregate chamber 13, opens the discharge plate 12 to drop down, closes the controllable electromagnet 47 after collection is completed, the iron impurities are dropped from the concave iron storage hole 46, and the iron storage hole 12 is cleaned and collected through the discharge plate 12.

The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the invention.

Claims

1. The utility model provides a ceramic clay processing equipment of misce bene, includes casing (10), its characterized in that, feed inlet (11) of feeding are seted up to casing (10) upper end both sides, aggregate room (13) have been seted up to casing (10) bottom, casing (10) are in aggregate room (13) below has seted up discharge plate (12) that can open and close, casing (10) are in feed inlet (11) top is equipped with fixed connection's motor (14), motor (14) output fixed connection grinding rod (15), casing (10) are seted up transmission chamber (54) in motor (14) below, grinding rod (15) are in transmission chamber (54) internal fixation connection gear wheel (19), transmission chamber (54) top symmetry sets up fixed connection's dead lever (16), rotate on dead lever (16) and connect with gear wheel (19) meshing pinion (18), casing (10) are equipped with around grinding shaft (24) that grinding rod (15) are connected in a rotation below grinding rod (15), be equipped with grinding shaft (24) and fixed gear wheel (17) are connected with gear wheel (17);

the grinding shaft (24) is provided with a first-stage sliding groove (55) at the upper part, two first pressing blocks (32) which are symmetrically arranged are connected in a sliding mode in the first-stage sliding groove (55), a group of first springs (21) which are symmetrically arranged up and down are arranged between the first pressing blocks (32) and the first-stage sliding groove (55), the grinding rod (15) is fixedly connected with a first-stage rotating rod (25) which rotates in the first-stage sliding groove (55), the outer end of the first-stage rotating rod (25) is abutted against the first pressing blocks (32) during rotation, the shell (10) is correspondingly provided with a first grinding cavity (29) in the first pressing block (32), a second-stage sliding groove (56) is arranged in the middle of the grinding shaft (24), two second pressing blocks (34) which are symmetrically arranged in a sliding mode are arranged up and down are arranged between the first pressing blocks (32) and the first-stage sliding groove (55), the grinding rod (15) is fixedly connected with a group of second springs (22) which are symmetrically arranged up and down, the grinding rod (15) is fixedly connected with the second-stage rotating rod (26) when the second-stage rotating rod (34) is abutted against the second-stage sliding groove (26) and the second-stage rotating rod (34), three-stage sliding grooves (57) are formed in the lower portion of the grinding shaft (24), two third pressing blocks (35) which are symmetrically arranged are connected in a sliding mode in the three-stage sliding grooves (57), a group of third springs (23) which are vertically symmetrically arranged are arranged between the third pressing blocks (35) and the three-stage sliding grooves (57), the grinding rod (15) is fixedly connected with a three-stage rotating rod (27) which rotates in the three-stage sliding grooves (57), the outer ends of the three-stage rotating rod (27) are abutted to the third pressing blocks (35) when rotating, a third grinding cavity (31) is formed in the shell (10) corresponding to the third pressing blocks (35), an electromagnet groove (33) is formed in one side, away from the first-stage rotating rod (25), of the third pressing blocks (35), and an electromagnet (28) is fixedly connected in the electromagnet groove (33);

the first grinding cavity (29) is gradually narrowed by the second grinding cavity (30) and the third grinding cavity (31), the primary rotating rod (25) is gradually shortened by the secondary rotating rod (26) and the tertiary rotating rod (27), a switch groove (52) which is gradually narrowed is formed in the lower side of the third pressing block (35) by the first pressing block (32) and the second pressing block (34), a switch (51) which is connected in a sliding mode and can control the switch of the electromagnet (28) to be gradually narrowed is arranged in the switch groove (52), and a switch spring (53) is arranged between the switch (51) and the switch groove (52) to be connected;

the grinding shaft (24) is provided with a first impurity removing channel (39) with an opening smaller than that of a corresponding switch (51) below the first pressing block (32) when the first pressing block is retracted, the first impurity removing channel (39) is provided with a first fine grinding groove (37) at the joint of the upper part of the second-stage rotating rod (26) and the grinding rod (15), the first fine grinding block (36) is connected in a sliding manner in the first fine grinding groove (37), a fourth spring (38) is arranged between the first fine grinding block (36) and the first fine grinding groove (37) to be connected, the grinding shaft (24) is provided with a second impurity removing channel (40) with an opening smaller than that of the corresponding switch (51) below the second pressing block (34) when the second pressing block is retracted, the second impurity removing channel (40) is provided with a second fine grinding groove (42) at the joint of the upper part of the third-stage rotating rod (27) and the grinding rod (15), the second fine grinding block (42) is connected in a sliding manner with the second fine grinding block (37), the second fine grinding block (41) is connected with the second fine grinding channel (41) when the second fine grinding block (41) is retracted, the second fine grinding channel (41) is connected with the second fine grinding channel (41) and the second fine grinding channel (41) is provided with a second fine grinding channel (43), a plurality of groups of fine grinding balls (44) which are rotationally connected to the grinding shaft (24) are arranged at the joint of the third impurity removing channel (49) and the grinding rod (15) below the three-stage rotating rod (27), and gaps between the grinding rod (15) and the grinding shaft (24) are communicated between the first impurity removing channel (39) and the second impurity removing channel (40) and between the third impurity removing channel (49);

the lower end of the grinding rod (15) is fixedly connected with a fan rod (45), the lower end of the fan rod (45) is fixedly connected with an air suction fan (50) which generates downward suction force when rotating, the shell (10) is provided with a supporting block (48) which is fixedly connected and supports the grinding shaft (24) around the fan rod (45), the supporting block (48) is provided with a controllable electromagnet (47) around the fan rod (45), and the shell (10) is provided with a blanking channel (20) around the supporting block (48) below the third grinding cavity (31);

the supporting block (48) surrounds the fan rod (45) and is provided with a plurality of groups of concave iron storage openings (46) for adsorbing iron impurities.