Grinding machine with superfine grinding structure and use method of grinding machine

Abstract

The invention discloses a grinding machine with a superfine grinding structure and a using method of the grinding machine, and relates to the technical field of grinding machines. The device comprises a base, one side of the top of the base is fixedly connected with a driving assembly, one side of the driving assembly is provided with a grinding assembly, the grinding assembly comprises a grinding cylinder, and the grinding cylinder is arranged above the base. The multi-dimensional grinding design is adopted, the stirring shaft drives the disc and the hollow rotor to rotate at a high speed, slurry particles and grinding media are impacted, stretched and the like under the action of centrifugal force, it is guaranteed that the grinding medium layer is evenly distributed in combination with radial turbulence, superfine grinding can be efficiently achieved, and the particle grinding precision is improved; meanwhile, a gap cylinder separator is arranged, qualified and unqualified particles can be separated in real time, the stability of grinding quality is guaranteed, in addition, the design of a water jacket and a flow guide plate can effectively circulate and cool, the temperature of the grinding environment is kept stable, and the situation that the slurry property is affected due to too high temperature is avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of grinding machines, in particular to a grinding machine with superfine grinding structure and a method for using the same. BACKGROUND

[0002] As a common material processing equipment, grinding machines are widely used in chemical industry, food industry, pharmaceutical industry, building material industry and other fields. The main function of grinding machines is to reduce the particle size of materials to meet the requirements of different production processes through the interaction between grinding media and materials. Traditional grinding machines have various structures, such as ball mills, rod mills, vibration mills, stirring mills, etc. Taking a ball mill as an example, it mainly consists of a horizontally placed cylinder, grinding media (steel balls, etc.) in the cylinder and a driving device. When working, the cylinder rotates under the driving of the driving device, and the grinding media are lifted to a certain height and then fall down by impact and grinding to crush the materials. However, most of the existing grinding machines have many limitations. The grinding structure of the existing grinding machines is often simple. For example, some small grinding machines only use a single grinding disc or grinding roller to simply crush the materials. This method cannot fully grind the materials, resulting in low grinding efficiency. Therefore, the present application provides a grinding machine with superfine grinding structure and a method for using the same to solve the above problems. SUMMARY

[0003] The present application aims to provide a grinding machine with superfine grinding structure and a method for using the same. Through the cooperation of the grinding assembly and the driving assembly, the problem of low grinding efficiency caused by the simple grinding structure of the existing grinding machines is solved.

[0004] To solve the above technical problems, the present application is realized by the following technical solutions.

[0005] The application discloses a grinding machine with superfine grinding structure, which comprises a base, a driving assembly fixedly connected to one side of the top of the base, a grinding assembly provided on one side of the driving assembly, a grinding cylinder, an inner cavity of the grinding cylinder, a stirring shaft provided in the inner cavity of the grinding cylinder, a disc fixedly connected to the surface of the stirring shaft, a hollow rotor sleeved on the surface of the stirring shaft, a slit cylinder separator fixedly connected to the inner wall of the hollow rotor, grinding medium provided in the inner cavity of the grinding cylinder, a feeding pipe provided on one side of the bottom of the grinding cylinder, a flow regulating valve provided in the inner cavity of the feeding pipe, a front cover plate fixedly connected to one side of the grinding cylinder, a connector provided on one side of the front cover plate, a discharging pipe provided on the top of the connector, the driving assembly comprising a shell, the bottom of the shell being fixedly connected to the top of the base, a main transmission wheel provided on the top of the inner cavity of the shell, a slave transmission wheel provided on the bottom of the inner cavity of the shell, one end of the stirring shaft being fixedly connected to one side of the slave transmission wheel, the surface of the main transmission wheel being in transmission connection with the surface of the slave transmission wheel through a belt, a variable frequency motor provided on the top of one side of the shell, and the output shaft of the variable frequency motor penetrating into the inner cavity of the shell and being fixedly connected to one side of the main transmission wheel.

[0006] The application further provides that the surface of the grinding cylinder is sleeved with a water jacket, the inner cavity of the water jacket is provided with a spiral flow guide plate, the spiral flow guide plate guides the cooling water into the inner cavity of the water jacket, and the cooling water flows on the surface of the grinding cylinder in a spiral path, so that the heat on the surface of the grinding cylinder can be uniformly and quickly removed, and overall cooling is realized.

[0007] The application further provides that one side of the top of the water jacket is provided with a water inlet pipe, one side of the bottom of the water jacket is provided with a drain pipe, the valves in the inner cavities of the water inlet pipe and the drain pipe are respectively opened, cooling water is added into the inner cavity of the water jacket through the water inlet pipe, and the cooling water is finally discharged through the drain pipe, so that a cooling water circulation is formed in the inner cavity of the water jacket, and the heat on the surface of the grinding cylinder can be timely removed through the circulating cooling water.

[0008] The application further provides that one side of the surface of the stirring shaft is fixedly connected with a dynamic sealing plate, the surface of the dynamic sealing plate is in contact with the inner wall of the grinding cylinder, the dynamic sealing plate rotates with the stirring shaft, the grinding particles can pass through, the grinding medium cannot pass through, and the separation zone and the grinding zone can be separated.

[0009] The application further provides that both sides of the top of the base are fixedly connected with sliding rails, the inner cavities of the sliding rails are movably connected with sliding blocks, and the top of each sliding block is fixedly connected with the bottom of the grinding cylinder; after the grinding cylinder is disassembled, the grinding cylinder can be translated and disassembled through the sliding support structure composed of the sliding rails and the sliding blocks.

[0010] The present application is further provided with a thermometer on one side of the front cover plate, the probe of the thermometer penetrates into the inner cavity of the grinding cylinder, the change of the material temperature in the grinding cavity can be displayed by the thermometer, so that the staff can master the material temperature in real time and take corresponding operation.

[0011] The present application is further provided with a surplus material discharge pipe at the bottom of one side of the front cover plate, an electromagnetic valve is arranged in the inner cavity of the surplus material discharge pipe, the grinding sewage flows out through the surplus material discharge pipe by opening the electromagnetic valve in the inner cavity of the surplus material discharge pipe.

[0012] The present application is further provided with a control box fixedly connected to the top of the base and located on one side of the shell, an adjusting knob is arranged on the front surface of the control box, and the control box is arranged with wires and electrical components, and the adjusting knob on the front surface of the control box can adjust the pumping flow of the material.

[0013] The present application is further provided with a sealing disc fixedly connected to one side of the inner cavity of the grinding cylinder, the inner wall of the through hole on the surface of the sealing disc is in contact with the surface of the stirring shaft, and the sealing disc is arranged on the surface of the stirring shaft, so that the material and the grinding medium can be prevented from penetrating into the connection gap between the grinding cylinder and the stirring shaft.

[0014] A use method of a grinding machine with a superfine grinding structure, comprising the following steps: a. first, the grinding machine is powered on, the variable frequency motor is started, the output shaft of the variable frequency motor drives the main transmission wheel to rotate, the main transmission wheel drives the slave transmission wheel to rotate through the belt on the surface of the main transmission wheel, and the stirring shaft drives the disc on the surface of the stirring shaft and the hollow rotor to rotate at high speed; b. the slurry is injected into the inner cavity of the grinding cylinder through the feeding pipe, the grinding medium is thrown to the stationary grinding cylinder wall under the action of centrifugal force to form a dense annular layer, the slurry is thrown out radially by the disc on the stirring shaft to impact the medium layer, and the particles in the slurry are stretched in the gap between the disc and the grinding medium, and the particles in the slurry collide with the high-speed moving grinding medium, so that the particles in the slurry are subjected to multi-dimensional superfine grinding; c. the radial turbulent flow generated by the high-speed rotation of the disc on the stirring shaft throws the sedimentation medium to the grinding cylinder wall again to ensure that the grinding medium layer is uniformly distributed, the qualified particles reach the surface of the gap cylinder separator, and are discharged through the gap on the surface of the gap cylinder separator, and the unqualified particles are bounced back to the grinding area for continuous grinding; d. cooling water is injected into the inner cavity of the water jacket through the water inlet pipe, the cooling water flows in the spiral flow guide channel separated by the flow guide plates, and finally is discharged through the drain pipe, the heat on the surface of the grinding cylinder is taken away by the circulating cooling water, and the temperature in the inner cavity of the grinding cylinder is kept within a set range.

[0015] The present application has the following beneficial effects.

[0016] 1. The application adopts multi-dimensional grinding design, through the stirring shaft driving the disc and the hollow rotor high-speed rotation, the slurry particles are impacted, stretched and other multiple actions with the grinding medium under the action of centrifugal force, combined with the uniform distribution of the radial turbulent flow, the grinding medium layer can realize efficient superfine grinding, improve the particle grinding precision; at the same time, the gap cylinder separator can separate qualified and unqualified particles in real time, ensure the stability of the grinding quality, in addition, the design of water jacket and guide plate can effectively circulate cooling, maintain the stability of the grinding environment temperature, avoid the influence of high temperature on the properties of slurry.

[0017] 2. The application forms a complete process from equipment starting, slurry injection to grinding process control and cooling operation, which is convenient for operators to operate; through the variable frequency motor driving transmission system, the speed can be flexibly adjusted to adapt to different grinding requirements, and the applicability of the equipment is enhanced; the centrifugal force and turbulent flow are used to automatically maintain the distribution of the grinding medium and the separation of the material particles during the grinding process, the manual intervention is reduced, the grinding efficiency is improved, and the independent operation of the cooling water circulation system can ensure the stability of the cooling effect and protect the long-term stable operation of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used for the embodiment description.

[0019] Figure 1 It is a three-dimensional view of a grinding machine with a superfine grinding structure Figure 1 .

[0020] Figure 2 It is a three-dimensional view of a grinding machine with a superfine grinding structure Figure 2 .

[0021] Figure 3 It is a grinding machine with a superfine grinding structure Figure 2 The partial enlarged view of A in the grinding machine.

[0022] Figure 4 It is a sectional view of a water jacket in a grinding machine with a superfine grinding structure.

[0023] Figure 5 It is a sectional view of a grinding assembly in a grinding machine with a superfine grinding structure.

[0024] Figure 6 It is a grinding machine with a superfine grinding structure Figure 5 The partial enlarged view of B in the grinding machine.

[0025] Figure 7 It is a sectional view of a driving assembly in a grinding machine with a superfine grinding structure.

[0026] In the drawing: 1, base; 2, drive assembly; 3, grinding assembly; 301, grinding cylinder; 302, stirring shaft; 303, disc; 304, hollow rotor; 305, slit cylinder separator; 306, grinding medium; 307, feeding pipe; 308, flow regulating valve; 309, front cover plate; 310, connector; 311, discharge pipe; 201, housing; 202, main transmission wheel; 203, slave transmission wheel; 204, variable frequency motor; 4, water jacket; 5, guide plate; 6, dynamic sealing plate; 7, thermometer; 8, control box. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. The described embodiments are only some of the embodiments of the present application, not all. EMBODIMENT

[0028] Please refer to Figures 1-7 The present application is a grinding machine with superfine grinding structure, comprising a base 1, one side of the top of the base 1 is fixedly connected with a drive assembly 2, one side of the drive assembly 2 is provided with a grinding assembly 3, the grinding assembly 3 comprises a grinding cylinder 301, the grinding cylinder 301 is arranged above the base 1, the inner cavity of the grinding cylinder 301 is provided with a stirring shaft 302, the surface of the stirring shaft 302 is fixedly connected with a disc 303, the surface of the stirring shaft 302 is sleeved with a hollow rotor 304, the inner wall of the hollow rotor 304 is fixedly connected with a slit cylinder separator 305, the inner cavity of the grinding cylinder 301 is provided with a grinding medium 306, one side of the bottom of the grinding cylinder 301 is provided with a feeding pipe 307, the inner cavity of the feeding pipe 307 is provided with a flow regulating valve 308, one side of the grinding cylinder 301 is fixedly connected with a front cover plate 309, one side of the front cover plate 309 is provided with a connector 310, the top of the connector 310 is provided with a discharge pipe 311, the drive assembly 2 comprises a housing 201, the bottom of the housing 201 is fixedly connected with the top of the base 1, the top of the inner cavity of the housing 201 is provided with a main transmission wheel 202, the bottom of the inner cavity of the housing 201 is provided with a slave transmission wheel 203, one side of the slave transmission wheel 203 is fixedly connected with one end of the stirring shaft 302, the surface of the main transmission wheel 202 is drivingly connected with the surface of the slave transmission wheel 203 through a belt, the top of one side of the housing 201 is provided with a variable frequency motor 204, the output shaft of the variable frequency motor 204 penetrates into the inner cavity of the housing 201 and is fixedly connected with one side of the main transmission wheel 202.

[0029] Specifically: the output shaft of the variable frequency motor 204 drives the main transmission wheel 202 to rotate, the main transmission wheel 202 drives the slave transmission wheel 203 through the belt on its surface, and the slave transmission wheel 203 drives the stirring shaft 302 on one side to rotate. The variable frequency motor 204 can diversify the rotating speed of the stirring shaft 302. The constant speed machine can achieve the same effect by replacing the main transmission wheel 202 and the slave transmission wheel 203 of the driving assembly 2. Therefore, the grinding machine can meet the speed required when grinding different materials. The grinding medium 306 is thrown to the wall of the stationary grinding cylinder 301 under the action of centrifugal force to form a dense annular layer. The slurry is thrown out radially by the disc 303 on the stirring shaft 302 and hits the medium layer. The particles in the slurry are stretched in the gap between the disc 303 and the grinding medium 306. The particles in the slurry collide with the high-speed moving grinding medium 306, thereby performing multi-dimensional superfine grinding on the particles in the slurry. The gap cylinder separator 305 can discharge qualified material particles, and unqualified material particles are bounced back to the grinding area for regrinding. Embodiment

[0030] Please refer to Figures 1-7 On the basis of embodiment one, the surface of the grinding cylinder 301 is sleeved with a water jacket 4, the inner cavity of the water jacket 4 is provided with a guide plate 5, one side of the top of the water jacket 4 is provided with a water inlet pipe, one side of the bottom of the water jacket 4 is provided with a drain pipe, one side of the surface of the stirring shaft 302 is fixedly connected with a dynamic sealing plate 6, the surface of the dynamic sealing plate 6 is in contact with the inner wall of the grinding cylinder 301, both sides of the top of the base 1 are fixedly connected with sliding rails, the inner cavities of the sliding rails are movably connected with sliding blocks, one side of the front cover plate 309 is provided with a thermometer 7, the probe of the thermometer 7 penetrates into the inner cavity of the grinding cylinder 301, the bottom of one side of the front cover plate 309 is provided with a surplus discharge pipe, the inner cavity of the surplus discharge pipe is provided with a solenoid valve, the top of the base 1 and one side of the shell 201 are fixedly connected with a control box 8, the front surface of the control box 8 is provided with an adjusting knob, one side of the inner cavity of the grinding cylinder 301 is fixedly connected with a sealing disc, and the inner wall of the through hole on the surface of the sealing disc is in contact with the surface of the stirring shaft 302.

[0031] Specifically: the spiral guide plate 5, the cooling water into the water jacket 4 cavity is guided, the cooling water is in the surface of the grinding cylinder 301 flow with spiral path, can evenly and quickly take away the heat of the surface of the grinding cylinder 301, realize overall cooling, open the valve in the water inlet pipe and the drainage pipe cavity respectively, add cooling water to the inner cavity of the water jacket 4 through the water inlet pipe, and finally discharge the cooling water through the drainage pipe, so as to form a cooling water circulation in the inner cavity of the water jacket 4, and the heat on the surface of the grinding cylinder 301 is taken away in time through the circulating cooling water, the dynamic sealing plate 6 rotates with the stirring shaft 302, the grinding particles can pass through, the grinding medium 306 cannot pass through, and the separation zone and the grinding zone can be separated, the top of the sliding block is fixedly connected with the bottom of the grinding cylinder 301, after the grinding cylinder 301 is disassembled, the grinding cylinder 301 can be disassembled through the sliding support structure composed of the sliding rail and the sliding block, the temperature change of the material in the grinding cavity can be displayed through the temperature table 7, so that the staff can master the material temperature in real time and take corresponding operation, the electromagnetic valve in the excess material discharge pipe cavity is opened, the grinding sewage flows out through the excess material discharge pipe, the wiring and electrical components in the control box 8 are arranged, and the adjusting knob on the front of the control box 8 can adjust the pumping flow of the material, the sealing disc is arranged on the surface of the stirring shaft 302, and the material and the grinding medium 306 can be prevented from penetrating into the connection gap between the grinding cylinder 301 and the stirring shaft 302.

[0032] A use method of a grinder with a superfine grinding structure, comprising the following steps: a、First, the grinder is powered on, the variable frequency motor 204 is started, the output shaft of the variable frequency motor 204 drives the main transmission wheel 202 to rotate, the main transmission wheel 202 drives the from transmission wheel 203 to rotate through the belt on the surface of the main transmission wheel 202, the from transmission wheel 203 drives the stirring shaft 302 to rotate, and the stirring shaft 302 drives the disc 303 and the hollow rotor 304 on the surface of the stirring shaft 302 to rotate at high speed; b、The slurry is injected into the inner cavity of the grinding cylinder 301 through the feeding pipe 307, the grinding medium 306 is thrown to the wall of the stationary grinding cylinder 301 under the action of centrifugal force to form a ring-shaped dense layer, the slurry is thrown out radially by the disc 303 on the stirring shaft 302 to impact the medium layer, and the particles in the slurry are stretched in the gap between the disc 303 and the grinding medium 306, so that the particles in the slurry collide with the high-speed moving grinding medium 306, thereby performing multi-dimensional superfine grinding on the particles in the slurry; c、The disc 303 on the stirring shaft 302 rotates at high speed to generate radial turbulent flow, and the settled medium is thrown to the wall of the grinding cylinder 301 again to ensure that the layer of the grinding medium 306 is uniformly distributed, the qualified particles reach the surface of the gap cylinder separator 305 and are discharged through the gap on the surface of the gap cylinder separator 305, and the unqualified particles are bounced back to the grinding area for continuous grinding; d. The cooling water is injected into the inner cavity of the water jacket 4 through the water inlet pipe, flows through the spiral flow channel separated by the flow guide plate 5, and is finally discharged through the water outlet pipe. The heat on the surface of the grinding cylinder 301 is taken away by the circulating cooling water, and the temperature of the inner cavity of the grinding cylinder 301 is maintained within a set range.

[0033] The above disclosed preferred embodiments of the present application are only used to help explain the present application, and the preferred embodiments do not describe all the details and limit the present application to the specific embodiments described. The embodiments are selected and described in detail in the specification in order to better explain the principles and practical applications of the present application, so that those skilled in the art can well understand and utilize the present application.

Claims

1. A grinding machine with an ultrafine grinding structure, comprising a base (1), characterized in that: A driving assembly (2) is fixedly connected to one side of the top of the base (1), and a grinding assembly (3) is provided on one side of the driving assembly (2); The grinding assembly (3) comprises a grinding cylinder (301), the grinding cylinder (301) is arranged above the base (1), the inner cavity of the grinding cylinder (301) is provided with a stirring shaft (302), the surface of the stirring shaft (302) is fixedly connected to a disc (303), the surface of the stirring shaft (302) is sleeved with a hollow rotor (304), the inner wall of the hollow rotor (304) is fixedly connected to a slit cylinder separator (305), the inner cavity of the grinding cylinder (301) is provided with a grinding medium (306), a feeding pipe (307) is provided on one side of the bottom of the grinding cylinder (301), the inner cavity of the feeding pipe (307) is provided with a flow regulating valve (308), a front cover (309) is fixedly connected to one side of the grinding cylinder (301), a connector (310) is provided on one side of the front cover (309), and a discharge pipe (311) is provided on the top of the connector (310); The driving assembly (2) comprises a housing (201), the bottom of the housing (201) being fixedly connected to the top of the base (1), a main transmission wheel (202) being provided at the top of the inner cavity of the housing (201), a slave transmission wheel (203) being provided at the bottom of the inner cavity of the housing (201), one side of the slave transmission wheel (203) being fixedly connected to one end of the stirring shaft (302), the surface of the main transmission wheel (202) being transmission-connected to the surface of the slave transmission wheel (203) via a belt, a variable frequency motor (204) being provided at the top of one side of the housing (201), the output shaft of the variable frequency motor (204) passing through the inner cavity of the housing (201) and being fixedly connected to one side of the main transmission wheel (202).

2. The grinder with an ultrafine grinding structure according to claim 1, characterized in that: The surface of the grinding cylinder (301) is provided with a water jacket (4), and the inner cavity of the water jacket (4) is provided with a guide plate (5).

3. The grinder with an ultrafine grinding structure according to claim 2, characterized in that: A water inlet pipe is provided on one side of the top of the water jacket (4), and a drain pipe is provided on one side of the bottom of the water jacket (4).

4. The grinder with an ultrafine grinding structure according to claim 1, characterized in that: A dynamic sealing plate (6) is fixedly connected to one side of the surface of the stirring shaft (302), and the surface of the dynamic sealing plate (6) is in contact with the inner wall of the grinding cylinder (301).

5. The grinder with an ultrafine grinding structure according to claim 1, characterized in that: Both sides of the top of the base (1) are fixedly connected to slide rails, the inner cavity of the slide rails is movably connected to a slider, and the top of the slider is fixedly connected to the bottom of the grinding cylinder (301).

6. The grinder with an ultrafine grinding structure according to claim 1, characterized in that: A temperature gauge (7) is provided on one side of the front cover plate (309), and a probe of the temperature gauge (7) penetrates into the inner cavity of the grinding cylinder (301).

7. The grinder with an ultrafine grinding structure according to claim 1, characterized in that: A residual material discharge pipe is provided at the bottom of one side of the front cover plate (309), and a solenoid valve is provided in the inner cavity of the residual material discharge pipe.

8. The grinder with an ultrafine grinding structure according to claim 1, characterized in that: A control box (8) is fixedly connected to the top of the base (1) and located on one side of the housing (201), and an adjustment knob is provided on the front of the control box (8).

9. The grinder with an ultrafine grinding structure according to claim 1, characterized in that: A sealing disk is fixedly connected to one side of the inner cavity of the grinding cylinder (301), and the inner wall of the opening of the sealing disk is in contact with the surface of the stirring shaft (302).

10. A method for using a grinder having an ultrafine grinding structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: a. First, the grinding machine is connected to a power source and the variable frequency motor (204) is turned on. The output shaft of the variable frequency motor (204) drives the main transmission wheel (202) to rotate. The main transmission wheel (202) drives the slave transmission wheel (203) to rotate via a belt on its surface. The slave transmission wheel (203) drives the stirring shaft (302) to rotate. The stirring shaft (302) drives the disc (303) on its surface and the hollow rotor (304) to rotate at high speed. b. Slurry is injected into the inner cavity of the grinding cylinder (301) through the feeding pipe (307). The grinding medium (306) is thrown toward the wall of the stationary grinding cylinder (301) by the centrifugal force to form an annular dense layer. The slurry is radially thrown out by the disc (303) on the stirring shaft (302) to impact the medium layer. The particles in the slurry are stretched in the gap between the disc (303) and the grinding medium (306). The particles in the slurry collide with the high-speed moving grinding medium (306), thereby performing multi-dimensional ultrafine grinding on the particles in the slurry; c. The disc (303) on the stirring shaft (302) rotates at high speed to generate radial turbulence, which throws the sedimentation medium back to the wall of the grinding cylinder (301) to ensure that the grinding medium (306) layer is evenly distributed. Qualified particles reach the surface of the slit cylinder separator (305) and are discharged through the slits on the surface of the slit cylinder separator (305). Unqualified particles are bounced back to the grinding area to continue grinding; d. Cooling water is injected into the inner cavity of the water jacket (4) through the water inlet pipe. The cooling water circulates in the spiral guide channel separated by the guide plate (5) and is finally discharged through the drain pipe. The circulating cooling water takes away the heat from the surface of the grinding cylinder (301) and maintains the temperature of the inner cavity of the grinding cylinder (301) within the set range.

Images