CN215586647U - Kaolin low-speed grinding machine - Google Patents

Abstract

The application relates to a kaolin low-speed grinder, which comprises a feeding pipe, a shell, a grinding assembly, a backflow assembly and a discharging pipe, wherein a cavity is formed in the shell to provide a space for grinding kaolin slurry; the grinding component is fixedly arranged on the shell and is used for grinding the kaolin slurry to obtain fine slurry with smaller particle size of the kaolin particles; the backflow component is installed on the outer wall of the shell, one end of the backflow component is communicated with the upper end of the cavity through the discharge hole, the other end of the backflow component is communicated with the lower end of the cavity, and part of coarse slurry which is not effectively ground is thrown into the cavity again to be ground, so that high-quality kaolin fine slurry with uniform particle size is guaranteed to be obtained, secondary grinding of all slurry is avoided, and production cost is saved.

Description

Kaolin low-speed grinding machine

Technical Field

The application relates to the field of soil crushing, in particular to a kaolin low-speed grinding machine.

Background

In the production process of kaolin, in order to ensure that the final particle size of the product meets the quality requirement, kaolin slurry is usually ground to ensure the quality of the kaolin finished product.

The correlation technique is like the abrasive type stripping machine that chinese patent publication No. CN206661340U discloses, this utility model discloses an abrasive type stripping machine, including shell, dwang and grinding flabellum, realizes the low-speed grinding effect through stirring the flabellum, improves the treatment effeciency of thick liquids.

In view of the above-mentioned related art, the present inventors have considered that the existing kaolin grinding mill has a function of stirring and grinding particles in slurry, but have not considered that the kaolin processed by the grinding mill has uneven quality, in which some coarse powder which is not completely ground and ultra-fine powder which is completely ground are contained, and the coarse powder affects the quality of the kaolin slurry, so that secondary grinding is required, but secondary grinding results in ineffective grinding for ultra-fine grinding, reduces grinding efficiency, and has high production cost, so that improvement is required.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem of uneven quality of kaolin treated by a grinding machine, the application provides a low-speed grinding machine for kaolin.

The application provides a kaolin low-speed grinding machine, adopts following technical scheme.

A kaolin clay low-speed grinding machine comprises:

the device comprises a shell, a grinding head and a grinding head, wherein the shell is arranged in a sealing manner, a cavity is formed in the shell and provides a space for grinding kaolin, the lower end part of the shell is communicated with a feeding pipe for providing kaolin slurry, and a discharge hole is formed in the upper end part of the shell;

the grinding assembly is fixed on the shell and is used for grinding the kaolin crude slurry;

the backflow assembly is mounted on the outer wall of the shell, one end of the backflow assembly is communicated with the upper end of the cavity through the discharge hole, and the other end of the backflow assembly is communicated with the lower end of the cavity;

wherein, including the filter screen in the backward flow subassembly, the filter screen slope sets up, the filter screen is with kaolin thick liquids separation for thin thick liquids and thick liquids, and thick liquids backward flow to the tip in cavity lower extreme.

By adopting the technical scheme, a space is provided for grinding the kaolin slurry through the arrangement of the shell; grinding coarse particles in the kaolin through the arrangement of the grinding assembly, and grinding the coarse slurry into fine slurry through the grinding assembly; through the arrangement of the backflow component, a ground product is divided into coarse slurry and fine slurry through the screening effect of the filter screen, the coarse slurry flows back to the lower end part of the cavity, and the coarse slurry is ground again, so that the quality of the produced kaolin slurry is high, secondary grinding is not needed, the production efficiency is improved, and the production cost is reduced; wherein the filter screen slope sets up, not only improves the area of contact of thick liquids and filter screen, and then improves filtration efficiency, still avoids thick liquids to pile up on the filter screen.

Optionally, the backflow component is provided with:

a discharge pipe for transporting the fine slurry to a next production unit;

the return pipeline is communicated with the lower end part of the cavity;

the reflux pump is communicated with the reflux pipeline and is used for pressurizing the reflux coarse slurry;

wherein, the filter screen is divided into thin material chamber and thick material chamber with the return assembly inner space, thin material chamber sets up in the filter screen below, thin material chamber and discharging pipe intercommunication, thick material chamber sets up in the filter screen top, discharge gate and cavity upper end intercommunication are passed through to thick material chamber one end, the other end and backflow pipeline intercommunication.

By adopting the technical scheme, the fine slurry is collected in the fine material cavity through the filter screen by arranging the fine material cavity and the coarse material cavity, and is transported to a next production unit through the discharge pipe; the coarse slurry is stored by the coarse slurry chamber and is transported to the lower end part of the cavity through the backflow pipeline; through the setting of backwash pump, the pressure in the cavity can be broken through to the thick liquids in the guarantee backflow pipeline, gets into in the cavity smoothly.

Optionally, the reflow module further includes:

the vibration motor is in transmission connection with one side, away from the shell, of the filter screen, and the vibration motor runs intermittently.

Through adopting above-mentioned technical scheme, through vibrating motor's setting, carry out intermittent type nature vibration clearance to the filter screen, when the filter screen was sieved the operation, partial kaolin granule can block in the filter screen or pile up on the filter screen surface, through vibrating motor, let the filter screen take place the tremor, get rid of and pile up or block the kaolin granule of establishing on the filter screen, ensure that the filter screen sieves kaolin thick liquids persistence high efficiency.

Optionally, the grinding assembly comprises:

the rotating shaft is vertically arranged, the lower end of the rotating shaft is connected with the inner surface of the bottom of the shell, and the upper end of the rotating shaft penetrates through the top of the shell;

grind the flabellum, grind the flabellum setting in the cavity, grind flabellum and axis of rotation fixed connection.

Through adopting above-mentioned technical scheme, through the setting of grinding the flabellum, grind the kaolin thick liquids, through the setting of axis of rotation, drive and grind the flabellum and rotate.

Optionally, the grinding fan blade includes:

the fan comprises a first fan blade, a second fan blade and a fan, wherein the first fan blade is provided with a plurality of pieces, the first fan blades are arranged along the vertical direction of a rotating shaft, and one side of each first fan blade, which is far away from the rotating shaft, is obliquely arranged downwards;

the second fan blades are provided with a plurality of pieces, the second fan blades are arranged along the vertical direction of the rotating shaft, and one side of each second fan blade, which is far away from the rotating shaft, is obliquely arranged upwards;

wherein, each first fan blade and each second fan blade are arranged in a staggered manner.

By adopting the technical scheme, the first fan blade and the second fan blade are arranged, the first fan blade drives the slurry to rotate when rotating, and one side of the first fan blade, which is far away from the rotating shaft, inclines downwards to guide the slurry to do spiral motion downwards; when the second slurry rotates, the slurry is driven to rotate, and one side, far away from the rotating shaft, of the second fan blade inclines upwards to guide the slurry to do spiral motion upwards; because the first fan blades and the second fan blades are arranged in a staggered mode, the slurry moving upwards and the slurry moving downwards collide violently, so that kaolin particles in the kaolin slurry are levigated, and conversion from coarse slurry to fine slurry is completed.

Optionally, the grinding assembly further comprises:

the grinding motor is arranged on the upper end face of the shell and used for providing power for the rotating shaft;

the transmission part, the transmission part sets up at the casing up end, transmission part one end is connected with grinding motor transmission, and the other end is connected with axis of rotation transmission.

By adopting the technical scheme, the grinding motor is arranged to provide power for the rotating shaft so as to drive the grinding fan blades to rotate, so that the grinding process is smooth; through the setting of driving medium, for grinding motor and axis of rotation provide the transmission and be connected to turn into the low rotational speed of axis of rotation with the high rotational speed of motor, make the process of grinding more stable.

Optionally, the method further includes:

the exhaust pipe is arranged at the upper end of the shell and communicated with the cavity, and the horizontal height of the exhaust pipe is higher than that of the discharge hole.

By adopting the technical scheme, the gas in the shell is discharged through the arrangement of the exhaust pipe, so that the pressure inside and outside the shell is ensured to be consistent, and the slurry leakage phenomenon is avoided; because kaolin slurry violently collides under the drive of the grinding assembly to generate bubbles, gas in the slurry overflows after collision and is discharged through the exhaust pipe.

Optionally, the housing is provided with:

the climbing piece, the climbing piece is provided with a plurality of, each climbing piece is along vertical direction fixed connection in proper order on the casing outer wall.

Through adopting above-mentioned technical scheme, through the setting of climbing piece, can climb the casing top, be convenient for overhaul relevant parts.

Optionally, the feed pipe is provided with:

a valve for controlling a kaolin slurry feed flow.

By adopting the technical scheme, the feeding flow of the kaolin slurry is controlled by setting the valve, so that the production conditions and the quality of kaolin finished products are conveniently controlled.

In summary, the present application includes at least one of the following beneficial technical effects:

screening the ground kaolin slurry into coarse slurry and fine slurry, refluxing the coarse slurry which does not reach the standard after grinding into the cavity, and grinding again to ensure that the kaolin slurry with uniform particle size and excellent quality is obtained;

under the drive of the first fan blade and the second fan blade, the slurry collides and extrudes with each other in the cavity, and the kaolin particles are ground;

gas in a kaolin low-speed grinder is discharged to the external environment, so that the consistency of the internal and external air pressure environments of the grinder is guaranteed;

the filter screen in the backflow component is subjected to intermittent vibration treatment, so that kaolin particles are prevented from being blocked and accumulated on the filter screen, and the filtering efficiency of kaolin slurry is improved.

Drawings

FIG. 1 is a schematic view of a kaolin clay low speed grinder according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of the internal structure of a kaolin clay low-speed grinding machine according to an embodiment of the present application;

FIG. 3 is a schematic view of a reflow assembly in accordance with an embodiment of the present application;

FIG. 4 is a schematic view of an exemplary embodiment of a fan blade assembly.

Reference numerals: 1. a feed pipe; 2. a housing; 3. a grinding assembly; 4. a reflow assembly; 5. a discharge pipe; 6. an exhaust pipe; 7. a climbing member; 11. a valve; 21. a cavity; 22. a feed inlet; 23. a discharge port; 31. grinding the motor; 32. a transmission member; 33. a rotating shaft; 34. grinding the fan blades; 341. a first fan blade; 342. a second fan blade; 41. filtering with a screen; 42. a return line; 43. a fine material chamber; 44. a coarse material cavity; 45. a vibration motor; 46. a reflux pump.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses kaolin low-speed grinds machine.

A kaolin clay low-speed grinding machine comprises:

referring to fig. 1, a kaolin low-speed grinding machine comprises a feeding pipe 1, a shell 2, a grinding component 3, a backflow component 4 and a discharging pipe 5, wherein the shell 2 is arranged in a sealing manner, a cavity 21 is arranged inside the shell 2 to provide a space for grinding kaolin slurry, and a feeding port 22 and a discharging port 23 are arranged on the shell 2; the feeding pipe 1 communicates with the cavity 21 inside the casing 2 through the feeding port 22, and transports the kaolin slurry from the previous production unit to the grinding mill; the grinding component 3 is fixedly arranged on the shell 2 and is used for grinding the kaolin slurry to obtain fine slurry with smaller particle size of the kaolin particles; backflow component 4 installs on casing 2 outer wall, and backflow component 4 one end and discharge gate 23 intercommunication, the other end and feed inlet 22 intercommunication transport the tip under the cavity 21 with the part thick liquids that do not receive effective grinding, drop into once more and grind in the cavity 21 to guarantee to obtain the fine thick liquids of high-quality kaolin, also avoid grinding once more all thick liquids, practiced thrift manufacturing cost.

Referring to fig. 2 and 3, the backflow component 4 includes a filter screen 41, a backflow pipeline 42 and a backflow pump 46, wherein one side of the filter screen 41 away from the housing 2 is arranged in a downward inclination manner, the filter screen 41 divides the internal space of the backflow component 4 into a fine material chamber 43 and a coarse material chamber 44, the coarse material chamber 44 is communicated with the discharge port 23 on the housing 2, the kaolin slurry after grinding treatment is transported into the coarse material chamber 44 through the discharge port 23, the fine slurry enters the fine material chamber 43 through the filter screen 41, the coarse slurry is intercepted in the coarse material chamber 44 by the filter screen 41 and flows downwards along with the inclination angle of the filter screen 41, and flows back into the cavity 21 in the housing 2 through the backflow pipeline 42; because the cavity 21 is filled with kaolin slurry, a reflux pump 46 is arranged to pressurize the coarse slurry in the reflux pipeline 42 so as to overcome the pressure in the cavity 21 and smoothly enter the cavity 21 for re-grinding; the discharge pipe 5 communicates with the fine material chamber 43 and transports the fine slurry to the next production unit.

Referring to fig. 2 and 3, the backflow assembly 4 further includes a vibration motor 45, and since the filter screen 41 is in the screening process, part of slurry is blocked in the filter screen 41 or is accumulated on the filter screen 41, which affects the screening efficiency, a vibration motor 45 is installed on the side of the filter screen 41 away from the housing 2, the filter screen 41 is intermittently vibrated, so that kaolin particles blocked in the filter screen 41 are made to fall off, coarse slurry accumulated on the surface of the filter screen 41 is removed, and the screening efficiency is guaranteed.

Referring to fig. 1 and 2, the kaolin low-speed grinding machine further comprises a valve 11, the valve 11 is installed on the feeding pipe 1, and the feeding flow of the kaolin slurry can be adjusted by adjusting the valve 11, so that the kaolin low-speed grinding machine can be adjusted according to actual production conditions and quality requirements to obtain kaolin products with different qualities.

Referring to fig. 1, a kaolin low-speed grinding machine has a feed inlet 22 disposed at the lower end of a casing 2, and a discharge outlet 23 disposed at the upper end of the casing 2. since a large amount of gas is dissolved in kaolin slurry, when the kaolin slurry is ground inside the casing 2, the gas is driven out of the slurry under the action of grinding force, and the discharge of the gas inside the casing 2 is facilitated by the way of the upper end discharge.

Referring to fig. 1, the kaolin low-speed grinding machine further comprises an exhaust pipe 6, wherein the exhaust pipe 6 is arranged at the upper end of the shell 2 and is communicated with a cavity 21 of the shell 2, the level of the exhaust pipe 6 is higher than that of the discharge port, the exhaust pipe 6 is positioned above the liquid level of kaolin slurry in the cavity 21, and the air pressure inside and outside the shell 2 is ensured to be consistent in the external environment for discharging the gas in the cavity 21.

Referring to fig. 2, the grinding assembly 3 includes a rotating shaft 33, grinding blades 34, a grinding motor 31 and a transmission member 32, wherein the grinding motor 31 is mounted on the upper end surface of the housing 2 to provide power for the operation of the grinding assembly 3; the transmission member 32 is also arranged on the upper end surface of the shell 2, one end of the transmission member 32 is connected with the grinding motor 31, and the other end of the transmission member 32 is connected with the rotating shaft 33, so that the grinding motor 31 drives the rotating shaft 33 to rotate, and meanwhile, the transmission member 32 is arranged to convert the high rotating speed of the grinding motor 31 into the low rotating speed of the rotating shaft 33, so that the grinding process is more stable; the grinding fan blades 34 are arranged on the rotating shaft 33, and the grinding fan blades 34 are driven by the rotating shaft 33 to synchronously rotate so as to grind the kaolin slurry.

Referring to fig. 4, the grinding fan blades 34 include first fan blades 341 and second fan blades 342, wherein the first fan blades 341 are disposed in two sets, one end of each set away from the rotating shaft 33 is inclined downward, the other end of each set away from the rotating shaft 33 is inclined upward, and the first fan blades 341 and the second fan blades 342 of each set are arranged in a staggered manner along the vertical direction of the rotating shaft 33; under the guide of the first fan blade 341, the local kaolin slurry rotates downwards spirally, under the guide of the second fan blade 342, the local kaolin slurry rotates upwards spirally, the kaolin slurries in different rotating directions collide and extrude with each other, and kaolin particles in the kaolin slurries are levigated under the action of extrusion force and collision force to form fine kaolin slurry.

Referring to fig. 1, a kaolin low-speed grinding machine still is provided with climbing piece 7, and this climbing piece 7 is provided with a plurality of, and each climbing piece 7 is arranged in proper order along vertical direction and is fixed on 2 outer walls of the casing, and through climbing piece 7, the staff can climb the 2 tops of casing, examines and repair this kaolin low-speed grinding machine.

The application principle of the kaolin low-speed grinding machine is as follows: opening the valve 11, allowing kaolin slurry to enter the cavity 21 of the housing 2 from the feeding pipe 1, opening the grinding motor 31, allowing the grinding motor 31 to drive the transmission member 32, the rotating shaft 33 and the grinding fan blades 34 to rotate, and allowing the first fan blades 341 and the second fan blades 342 to extrude the inside of the kaolin slurry under the synergistic effect to grind kaolin particles; the grinded kaolin slurry enters the backflow component 4 through the discharge port 23, and under the action of the filter screen 41, part of the coarse slurry which is not completely grinded returns to the cavity 21 of the shell 2 through the backflow pipeline 42 and the backflow pump 46 for re-grinding; the fine slurry passes through the screen 41 and is transported via the discharge pipe 5 to the next production unit.

The above embodiments are the best embodiments of the present application, and the protection scope of the present application is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. A kaolin low-speed grinding machine is characterized by comprising:

the device comprises a shell (2), wherein the shell (2) is arranged in a sealing manner, a cavity (21) is formed in the shell (2) to provide a space for grinding kaolin, the lower end part of the shell (2) is communicated with a feeding pipe (1) for providing kaolin slurry, and a discharge hole (23) is formed in the upper end part of the shell (2);

the grinding assembly (3), the grinding assembly (3) is fixed on the shell (2), and the grinding assembly (3) is used for grinding kaolin crude slurry;

the backflow component (4) is installed on the outer wall of the shell (2), one end of the backflow component (4) is communicated with the upper end of the cavity (21) through a discharge hole (23), and the other end of the backflow component (4) is communicated with the lower end of the cavity (21);

wherein, including filter screen (41) in backward flow subassembly (4), filter screen (41) slope sets up, filter screen (41) are fine thick liquids and thick liquid with the separation of kaolin thick liquids, and the thick liquid flows back to in cavity (21).

2. The kaolin clay low-speed grinding machine as claimed in claim 1, characterized in that the backflow component (4) is provided with:

a discharge pipe (5), the discharge pipe (5) being used for transporting the fine slurry to a next production unit;

a return duct (42), said return duct (42) communicating with the lower end of the cavity (21);

the backflow pump (46), the backflow pump (46) is communicated with the backflow pipeline (42), and is used for pressurizing the backflow coarse slurry;

wherein, filter screen (41) are divided into fine material chamber (43) and coarse material chamber (44) with reflux unit (4) inner space, fine material chamber (43) set up in filter screen (41) below, fine material chamber (43) and discharging pipe (5) intercommunication, coarse material chamber (44) set up in filter screen (41) top, discharge gate (23) and cavity (21) upper end intercommunication are passed through to coarse material chamber (44) one end, the other end and backflow pipeline (42) intercommunication.

3. The kaolin clay low-speed grinder according to claim 1, wherein the backflow component (4) further comprises:

vibrating motor (45), vibrating motor (45) are kept away from casing (2) one side transmission with filter screen (41) and are connected, vibrating motor (45) clearance nature operation.

4. The kaolin clay low-speed grinder according to claim 1, characterized in that the grinding assembly (3) comprises:

the rotating shaft (33), the rotating shaft (33) is vertically arranged, the lower end of the rotating shaft (33) is connected with the inner surface of the bottom of the shell (2), and the upper end of the rotating shaft (33) penetrates through the top of the shell (2);

the grinding fan blades (34) are arranged in the cavity (21), and the grinding fan blades (34) are fixedly connected with the rotating shaft (33).

5. The kaolin clay low-speed grinder according to claim 4, characterized in that the grinding blades (34) comprise:

the fan comprises a first fan blade (341), wherein the first fan blade (341) is provided with a plurality of pieces, the first fan blade (341) is arranged along the vertical direction of a rotating shaft (33), and one side, far away from the rotating shaft (33), of each first fan blade (341) is obliquely arranged downwards;

the second fan blade (342) is provided with a plurality of pieces, each second fan blade (342) is arranged along the vertical direction of the rotating shaft (33), and one side, far away from the rotating shaft (33), of each second fan blade (342) is arranged in an upward inclined mode;

wherein each first fan blade (341) and each second fan blade (342) are arranged in a staggered manner.

6. The kaolin clay low-speed grinder according to claim 1, characterized in that the fan grinding assembly (3) further comprises:

the grinding motor (31), the grinding motor (31) is arranged on the upper end face of the shell (2), and the grinding motor (31) is used for providing power for the rotating shaft (33);

the transmission piece (32), transmission piece (32) set up at casing (2) up end, transmission piece (32) one end is connected with grinding motor (31) transmission, and the other end is connected with axis of rotation (33) transmission.

7. The kaolin clay low-speed grinding machine as claimed in claim 1, further comprising:

the exhaust pipe (6), the exhaust pipe (6) set up in casing (2) upper end, exhaust pipe (6) and cavity (21) intercommunication, exhaust pipe (6) level is higher than discharge gate (23) level.

8. The kaolin clay low-speed grinder according to claim 1, characterized in that the shell (2) is provided with:

climbing piece (7), climbing piece (7) are provided with a plurality of, each climbing piece (7) are along vertical direction fixed connection in proper order on casing (2) outer wall.

9. The kaolin clay low-speed grinder according to claim 1, characterized in that the feeding pipe (1) is provided with:

a valve (11), the valve (11) being for controlling a kaolin slurry feed flow.

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