Quartz sand pulverizing equipment with impurity filtering function

Abstract

The invention relates to the technical field of quartz sand pulverization, in particular to quartz sand pulverization equipment with an impurity filtering function, which comprises a base, a top cover component, a crushing cone component and a power wheel, the top cover component is mounted on the base, the crushing cone component is mounted in the center of the base, and the power wheel penetrates into the side wall of the base and is in transmission connection with the crushing cone component. The crushing cone assembly and the top cover assembly form a periodically-changing meshing gap, the vertical direction of the meshing gap is the feeding direction and the discharging direction of materials, a material receiving groove and a grinding wheel are arranged below the machine base, and the crushing cone assembly is matched with the top cover assembly to crush quartz sand into particles and then the particles enter a lower water adding grinding area. An airflow posture adjusting structure is arranged on the outer surface of the meshing cone and changes the posture of the quartz sand entering the meshing gap, so that the long axis direction of the quartz sand tends to the circumferential direction with the main shaft as the axis.

Description

Technical Field

[0001] The invention relates to the technical field of quartz sand powder making, in particular to quartz sand powder making equipment with an impurity filtering function. Background Art

[0002] As a major source of silicon, quartz sand is an important raw material in the electrical and electronic industries.

[0003] After the quartz sand ore is mined, it needs to be crushed, cleaned, and powdered before being packaged and stored for subsequent use.

[0004] In the prior art, conventional jaw crushers or cone crushers are generally used for coarse crushing, and the crushing can only reach a particle size of about 5 mm. Conventional crushers cannot directly produce powdered quartz sand, and further roller grinding or pneumatic crushing by pneumatic impact is required to achieve further crushing. For example, documents such as CN216936194U, CN216172613U, and CN117101784B all use meshing wheel crushing to crush quartz sand into powder step by step, which requires a long operation time, or the roller crushing method requires frequent maintenance, and the roller meshing wheel has a low crushing efficiency. Summary of the invention

[0005] The object of the present invention is to provide a quartz sand powder making device with impurity filtering function to solve the problems raised in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions: A quartz sand powder making equipment with impurity filtering function, the powder making equipment includes a machine base, a top cover assembly, a crushing cone assembly, and a power wheel. The top cover assembly is installed on the machine base, and the crushing cone assembly is installed at the center of the machine base. The power wheel penetrates from the side wall of the machine base, and the power wheel is transmission-connected with the crushing cone assembly. The crushing cone assembly and the top cover assembly form a periodically changing meshing gap, and the upper and lower directions of the meshing gap are respectively the feeding and discharging directions of the material. A material receiving trough and a grinding wheel are arranged below the machine base. The crushing cone assembly cooperates with the top cover assembly to crush the quartz sand into particles and then enters the water-added grinding area below.

[0007] The material to be processed is put into the machine from above the top cover assembly. The material is mainly quartz sand ore that has undergone preliminary crushing. Quartz sand with a particle size of 5~20mm is put into the device, crushed by the crushing cone assembly into particles below 2mm and fall into the space below. The quartz sand in the lower space is stirred in water for cleaning first, and some soil and other debris are dissolved into the water. A small number of other insoluble impurities are washed and separated from the quartz sand particles in the water. The quartz sand is further ground in the water and stirred by structures such as meshing dragons. The friction between the particles of the quartz sand itself is used for further crushing. After water grinding, it is filtered and cleaned, and dried to obtain quartz sand powder. This application mainly combines the crusher and water grinding links, and the uneven primary particles are subjected to a fine crushing process to output quartz sand particles with a similar particle size below 2mm, and then the friction between the particles themselves is further ground into a powder state.

[0008] The top cover assembly includes a top cover shell and a meshing cylinder. The crushing cone assembly includes a meshing cone, a main shaft, and a shaft seat. The shaft seat is relatively fixed to the inner wall of the base. The main shaft is eccentrically installed in the shaft seat. The meshing cone is installed on the top of the main shaft. The power wheel is connected to the main shaft by transmission. The top cover shell is installed on the base. The meshing cylinder is fixed in the center of the top cover shell. The inner surface of the lower part of the meshing cylinder and the upper surface of the meshing cone are matched to communicate with each other through the meshing gap to crush the quartz sand in the gap. An airflow posture adjustment structure is arranged on the outer surface of the meshing cone, and the airflow posture adjustment structure changes the posture of the quartz sand entering the meshing gap so that the long axis direction of the quartz sand tends to the circumferential direction with the main axis as the axis.

[0009] After the material enters the gap between the meshing cone and the meshing cylinder, the main shaft is driven by the power wheel to rotate eccentrically. During the rotation process, due to the limitation of the installation position, the meshing cone actually rotates and swings around a center of a circle. This is the action of the prior art and will not be described in detail in this application. When the material enters the meshing gap, if there are no other restrictions, the quartz sand particles will fall into the meshing gap in any posture, and due to the gravity factor, a large proportion of the particles fall in the direction of the long axis vertically. In this application, the long axis refers to the direction of the longest dimension when the particle is not a standard sphere. When the quartz sand long axis is radial to the main axis axis, the stone The quartz sand cannot be fully bitten by the meshing gap, but is squeezed and broken when the gap is still large. The broken quartz sand falls down quickly and cannot further reduce the particle size. If the quartz sand mostly falls in the circumferential direction of the main shaft axis to fill the gap between the meshing cone and the meshing cylinder, then the meshing gap will complete the process of crushing the quartz sand at a smaller size, and the quartz sand will be crushed more thoroughly. Even if the front part is crushed, the back part of the quartz sand will be bitten and will not break and bounce to the discharge port. Therefore, the long axis direction of the quartz sand is along the circumferential direction, so that it can enter a smaller meshing gap, and the particle size of the crushed quartz sand powder tends to be uniform and small.

[0010] The crushing cone assembly also includes a sealing pendulum block and an air inlet pipe. The sealing pendulum block is sleeved on the main shaft, the upper surface of the sealing pendulum block abuts against the lower surface of the meshing cone, and the air inlet pipe is connected to the lower side wall of the shaft seat. The main shaft is provided with a core hole extending upward from the bottom end, and the core hole is a blind hole. Side holes are provided on the side walls of the main shaft, and the side holes are located below the mounting section of the main shaft and the meshing cone. An air groove extending downward is provided on the inner wall of the meshing cone. The upper surface of the meshing cone is divided into a meshing surface and a guide surface, and the guide surface is located obliquely above the meshing surface. The air groove extends from the top of the meshing cone at least to the axial position of the guide surface. A plurality of air holes are also circumferentially provided on the meshing cone, and the air holes pass through the guide surface, and the air holes are tangential to the guide surface.

[0011] The high-pressure gas entering the device from the air inlet pipe is blown out from each air hole in turn through the core hole, the side hole, and the air groove. The gas blown tangentially here blows the falling quartz sand. If the quartz sand falls along the meshing cone in the long axis direction, it will be subjected to a greater force from the gas blowing, and the long axis of the quartz sand will be deflected, thereby changing its posture. The long axis of the quartz sand tends to fall along the circumferential direction of the meshing cone, completing the process of adjusting the falling posture of the quartz sand.

[0012] The pores are inclined upward at an angle of 5 to 20 degrees.

[0013] The air holes blow out gas obliquely upward to adjust the posture of the quartz sand, so that when the quartz sand changes its long axis toward the circumferential direction of the meshing cone, it has a downward tilt to match the speed direction of the quartz sand entering the meshing gap.

[0014] The powder making equipment also includes a guide tube, which is arranged in the top cover shell and located above the meshing tube. The guide tube is in an inverted trumpet shape.

[0015] The guide tube guides the quartz sand of the material entering the device into the gap between the meshing tube and the meshing cone to prevent the accumulation of material above.

[0016] The inner surface of the guide tube is provided with rolling grooves, which are spiral in shape.

[0017] The quartz sand is allowed to roll downward along a spiral path and enter the gap between the crushing cone assembly and the meshing cylinder in turn, preventing the material from entering too quickly in a short period of time and causing the machine to be overloaded for a short period of time and cause jamming.

[0018] The spiral lower end of the rolling groove extends in the direction of the air outlet of the air hole.

[0019] The spiral direction of the falling quartz sand points to the direction of gas outlet of the pore, allowing the quartz sand to directly face the incoming gas flow and quickly change its posture to the designed posture.

[0020] The top cover assembly is installed in a floating manner on the machine base, and a vertical lifting structure is arranged between the top cover shell and the machine base.

[0021] After the device has been running for a period of time, when it is necessary to clean the meshing gap between the meshing cylinder and the meshing cone, the top cover shell, meshing cylinder and guide cylinder are lifted together through the jacking structure, and the meshing gap can be reached from the side of the machine base. It can be flushed from other directions with a high-pressure water gun, or the meshing gap surface can be checked for defects and whether surface repair is needed to ensure a higher hardness at the meshing gap.

[0022] The power wheel inputs power via a belt, and a flywheel is also arranged at the end of the power wheel. The weight of the flywheel accounts for more than 40% of the weight of the rotating parts of the device.

[0023] The belt drive prevents overload, and the flywheel accumulates surplus power in normal times, which can provide surplus power to compensate in the event of a momentary overload and prevent jamming.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention comprehensively processes quartz sand and gravel materials by combining a cone crusher and a water mill structure. The cone crusher crushes the material into smaller particles, washes it with water and uses its own friction to crush it into a finer powder state, which only needs to be dried later. When the crusher is crushing, a targeted design is carried out. For small particle materials, the posture of the material entering the meshing surface will affect the direction of force. The present application changes the direction of the long axis of the particles toward the circumferential direction by blowing out circular tangential gas at the meshing cone, so that the material particles can enter the end of the meshing gap, and the meshing crushing is more thorough, eliminating the situation where a large number of large particles collapse and bounce downward, and the discharged material particles are more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the appearance structure of the main body of the present invention; Figure 2 It is a schematic diagram of the internal cutaway structure of the present invention; Figure 3 It is a three-dimensional schematic diagram of the cutaway structure of the present invention; Figure 4 It is a schematic diagram of the appearance of the meshing cone and the main shaft of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the meshing cone and the main shaft of the present invention; Figure 6 for Figure 5 A partial view in FIG. Figure 7 It is a schematic diagram of the principle of the crushing cone assembly of the present invention working in conjunction with the top cover assembly; Figure 8 It is a schematic diagram of the posture adjustment principle of quartz sand entering into the gap between the meshing cone and the meshing cylinder in the top view of the present invention; In the figure: 1. base; 2. top cover assembly; 21. top cover shell; 22. meshing cylinder; 23. guide cylinder; 231. rolling groove; 3. crushing cone assembly; 31. meshing cone; 311. meshing surface; 312. guide surface; 313. air groove; 314. air hole; 32. main shaft; 321. core hole; 322. side hole; 33. sealing pendulum block; 36. shaft seat; 37. intake pipe; 4. power wheel; 9. quartz sand. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] A quartz sand powder making equipment with impurity filtering function, the powder making equipment includes a machine base 1, a top cover assembly 2, a crushing cone assembly 3, and a power wheel 4. The top cover assembly 2 is installed on the machine base 1, and the crushing cone assembly 3 is installed at the center of the machine base 1. The power wheel 4 penetrates from the side wall of the machine base 1, and the power wheel 4 is transmission-connected with the crushing cone assembly 3. The crushing cone assembly 3 and the top cover assembly 2 form a periodically changing meshing gap, and the upper and lower directions of the meshing gap are respectively the feeding and discharging directions of the material. A material receiving trough and a grinding wheel are arranged below the machine base 1. The crushing cone assembly 3 cooperates with the top cover assembly 2 to crush the quartz sand 9 into particles and then enter the water-added grinding area below.

[0028] like Figure 1 , 2 As shown, the material to be processed is put into the machine from above the top cover component 2. The material is mainly quartz sand ore that has undergone preliminary crushing. Quartz sand with a particle size of 5 to 20 mm is put into the device and crushed into particles below 2 mm by the crushing cone component 3, and falls into the space below. The quartz sand in the lower space is stirred in water for cleaning first, and some soil and other debris are dissolved in the water. A small number of other insoluble impurities are washed and separated from the quartz sand particles in the water. The quartz sand is further ground in the water and stirred by structures such as meshing dragons. The friction between the particles of the quartz sand itself is used for further crushing. After water grinding, it is filtered and cleaned, and dried to obtain quartz sand powder. The present application mainly combines the crusher and water grinding links, and the uneven primary particles are subjected to a fine crushing process to output quartz sand particles with a particle size of less than 2 mm, and then the friction between the particles themselves is further ground into a powder state.

[0029] The top cover assembly 2 includes a top cover shell 21 and a meshing cylinder 22. The crushing cone assembly 3 includes a meshing cone 31, a main shaft 32 and a shaft seat 36. The shaft seat 36 is relatively fixed to the inner wall of the base 1. The main shaft 32 is eccentrically installed in the shaft seat 36. The meshing cone 31 is installed on the top of the main shaft 32. The power wheel 4 is connected to the main shaft 32 in a transmission manner. The top cover shell 21 is installed on the base 1. The meshing cylinder 22 is fixed in the center of the top cover shell 21. The inner surface of the lower part of the meshing cylinder 22 and the upper surface of the meshing cone 31 are matched to communicate with each other through the meshing gap to crush the quartz sand 9 in the gap. The outer surface of the meshing cone 31 is provided with an airflow posture adjustment structure, which changes the posture of the quartz sand entering the meshing gap so that the long axis direction of the quartz sand tends to the circumferential direction with the main axis 32 as the axis.

[0030] like Figures 2 to 7 As shown, after the material enters the gap between the meshing cone 31 and the meshing cylinder 22, the main shaft 32 is driven by the power wheel 4 to rotate eccentrically. During the rotation process, due to the limitation of the installation position, the meshing cone 31 actually rotates and swings around a center of a circle. This is the action of the prior art and will not be described in detail in this application. When the material is in the meshing gap, if there is no restriction from any other factors, the quartz sand particles will fall into the meshing gap in any posture, and due to the gravity factor, a large proportion of the particles fall in the direction of the long axis vertically. In this application, the long axis refers to the direction of the longest dimension when the particles are not standard spherical, such as Figure 8 As shown, when the long axis of quartz sand 9 is radial to the axis of the main shaft 32, quartz sand 9 cannot be fully bitten by the meshing gap, but is squeezed and broken when the gap is still large, and the broken quartz sand 9 falls down quickly, and the particle size cannot be further reduced. If quartz sand 9 mostly falls in the circumferential direction of the axis of the main shaft 32 to form a gap between the meshing cone 31 and the meshing cylinder 22, then the meshing gap will complete the process of crushing quartz sand 9 at a smaller size, and quartz sand 9 will be crushed more thoroughly. Even if the front part is crushed, the rear part of quartz sand 9 will have been bitten and will not break and bounce to the discharge port. Therefore, the long axis direction of quartz sand 9 is along the circumferential direction, so that it can enter a smaller meshing gap, and the particle size of the crushed quartz sand powder tends to be uniform and small.

[0031] The crushing cone assembly 3 further includes a sealing pendulum block 33 and an air inlet pipe 37. The sealing pendulum block 33 is sleeved on the main shaft 32. The upper surface of the sealing pendulum block 33 abuts against the lower surface of the meshing cone 31. The air inlet pipe 37 is connected to the lower side wall of the shaft seat 36. The main shaft 32 is provided with a core hole 321 extending upward from the bottom end, and the core hole 321 is a blind hole. A side hole 322 is provided on the side wall of the main shaft 32, and the side hole 322 is located below the mounting section of the main shaft 32 and the meshing cone 31. A downwardly extending air groove 313 is provided on the inner wall of the meshing cone 31. The upper surface of the meshing cone 31 is divided into a meshing surface 311 and a guide surface 312. The guide surface 312 is located obliquely above the meshing surface 311. The air groove 313 extends from the top of the meshing cone 31 at least to the axial position of the guide surface 312. A plurality of air holes 314 are also circumferentially provided on the meshing cone 31. The air holes 314 pass through the guide surface 312, and the air holes 314 are tangential to the guide surface 312.

[0032] like Figures 2 to 7 As shown, the high-pressure gas entering the device from the air inlet pipe 37 is blown out from each air hole 314 through the core hole 321, the side hole 322, and the air groove 313 in sequence. The tangentially blown gas blows the falling quartz sand 9 here. If the quartz sand 9 falls along the meshing cone 31 in the long axis direction, it will be subjected to a greater force from the gas blowing, and the long axis of the quartz sand 9 will be deflected, thereby changing its posture. The long axis of the quartz sand 9 tends to fall along the circumferential direction of the meshing cone 31, completing the process of adjusting the falling posture of the quartz sand 9.

[0033] The air hole 314 is inclined upward at an angle of 5 to 20 degrees.

[0034] like Figure 4 As shown, the air hole 314 blows out gas obliquely upward to adjust the posture of the quartz sand 9, so that when the quartz sand 9 changes its long axis toward the circumferential direction of the meshing cone 31, it has an oblique downward angle to fit the speed direction of the quartz sand 9 entering the meshing gap.

[0035] The powder making equipment further comprises a guide tube 23 , which is arranged in the top cover shell 21 , and is located above the engagement tube 22 , and is in the shape of an inverted trumpet.

[0036] The guide tube 23 guides the quartz sand 9 entering the device into the gap between the meshing tube 22 and the meshing cone 31 to prevent the material from piling up above.

[0037] A rolling groove 231 is provided on the inner surface of the guide tube 23, and the rolling groove 231 is spiral.

[0038] The quartz sand 9 is allowed to roll downward along a spiral path and enter the gap between the crushing cone assembly 3 and the meshing cylinder 22 in turn, to prevent the material from entering too fast in a short time and causing the machine to be overloaded for a short time and cause jamming.

[0039] The spiral lower end of the rolling groove 231 extends in the direction of the gas outlet of the gas hole 314 .

[0040] like Figure 4 , 8As shown, the spiral direction of the falling quartz sand 9 points to the gas outlet direction of the air hole 314, so that the quartz sand 9 directly faces the incoming gas flow and quickly changes its posture to the designed posture.

[0041] The top cover assembly 2 and the machine base 1 are installed in a floating manner, and a vertical lifting structure is provided between the top cover shell 21 and the machine base 1 .

[0042] like Figure 1 , 2 As shown, after the device has been running for a period of time, when it is necessary to clean the meshing gap between the meshing cylinder 22 and the meshing cone 31, the top cover shell 21, the meshing cylinder 22, and the guide cylinder 23 are lifted together through the jacking structure, and the meshing gap can be reached from the side of the machine base 1, and flushed from the direction with a high-pressure water gun, or checked for defects on the surface of the meshing gap to see whether surface repair is needed to ensure a higher hardness at the meshing gap.

[0043] The power wheel 4 inputs power via a belt, and a flywheel is also arranged at the end of the power wheel 4, the weight of the flywheel accounts for more than 40% of the weight of the rotating parts of the device.

[0044] The belt drive prevents overload, and the flywheel accumulates surplus power in normal times, which can provide surplus power to compensate in the event of a momentary overload and prevent jamming.

[0045] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A quartz sand powder making device with impurity filtering function, characterized in that: The powder making equipment comprises a machine base (1), a top cover assembly (2), a crushing cone assembly (3), and a power wheel (4). The top cover assembly (2) is mounted on the machine base (1), and the crushing cone assembly (3) is mounted at the center of the machine base (1). The power wheel (4) extends deep into the side wall of the machine base (1), and the power wheel (4) is transmission-connected to the crushing cone assembly (3). The crushing cone assembly (3) and the top cover assembly (2) form a periodically changing meshing gap, and the upper and lower directions of the meshing gap are respectively the feeding and discharging directions of the material. A material receiving trough and a grinding wheel are arranged below the machine base (1). The crushing cone assembly (3) cooperates with the top cover assembly (2) to crush the quartz sand (9) into particles, and then the particles enter the water-adding grinding area below.

2. The quartz sand powder making equipment with impurity filtering function according to claim 1, characterized in that: The top cover assembly (2) comprises a top cover shell (21) and a meshing cylinder (22); the crushing cone assembly (3) comprises a meshing cone (31), a main shaft (32), and a shaft seat (36); the shaft seat (36) is relatively fixed to the inner wall of the machine base (1); the main shaft (32) is eccentrically mounted in the shaft seat (36); the meshing cone (31) is mounted on the top of the main shaft (32); the power wheel (4) is drivingly connected to the main shaft (32); the top cover shell (21) is mounted on the machine base (1); the meshing cylinder (22) is fixed in the center of the top cover shell (21); the inner surface of the lower part of the meshing cylinder (22) and the upper surface of the meshing cone (31) are matched to communicate with each other through a meshing gap to crush the quartz sand (9) in the gap; The outer surface of the meshing cone (31) is provided with an airflow posture adjustment structure, which changes the posture of the quartz sand entering the meshing gap so that the long axis direction of the quartz sand tends to the circumferential direction with the main axis (32) as the axis.

3. The quartz sand powder making equipment with impurity filtering function according to claim 2 is characterized in that: The crushing cone assembly (3) further comprises a sealing pendulum block (33) and an air inlet pipe (37). The sealing pendulum block (33) is sleeved on the main shaft (32), the upper surface of the sealing pendulum block (33) abuts against the lower surface of the meshing cone (31), and the air inlet pipe (37) is connected to the lower side wall of the shaft seat (36). The main shaft (32) is provided with a core hole (321) extending upward from the bottom end, the core hole (321) being a blind hole, a side hole (322) being provided on the side wall of the main shaft (32), the side hole (322) being located below the mounting section of the main shaft (32) and the meshing cone (31), an air groove (313) extending downward is provided on the inner wall of the meshing cone (31), the upper surface of the meshing cone (31) is divided into a meshing surface (311) and a flow guide surface (312), the flow guide surface (312) being located obliquely above the meshing surface (311), the air groove (313) extending from the top end of the meshing cone (31) at least to the axial position of the flow guide surface (312), and a plurality of air holes (314) being provided circumferentially on the meshing cone (31), the air holes (314) penetrating the flow guide surface (312), and the air holes (314) being along the tangent direction of the flow guide surface (312).

4. The quartz sand powder making equipment with impurity filtering function according to claim 3 is characterized in that: The air hole (314) is inclined upward at an angle of 5 to 20 degrees.

5. The quartz sand powder making equipment with impurity filtering function according to claim 3 is characterized in that: The powder making equipment further comprises a flow guide cylinder (23), wherein the flow guide cylinder (23) is arranged in the top cover shell (21), the flow guide cylinder (23) is located above the engagement cylinder (22), and the flow guide cylinder (23) is in the shape of an inverted trumpet.

6. The quartz sand powder making equipment with impurity filtering function according to claim 5, characterized in that: The inner surface of the guide tube (23) is provided with a rolling groove (231), and the rolling groove (231) is spiral-shaped.

7. The quartz sand powder making equipment with impurity filtering function according to claim 6, characterized in that: The spiral lower end of the rolling groove (231) extends in a direction pointing toward the gas outlet direction of the air hole (314).

8. The quartz sand powder making equipment with impurity filtering function according to claim 2, characterized in that: The top cover assembly (2) and the machine base (1) are installed in a floating manner, and a vertical lifting structure is provided between the top cover shell (21) and the machine base (1).

9. The quartz sand powder making equipment with impurity filtering function according to claim 2, characterized in that: The power wheel (4) inputs power via a belt, and a flywheel is also provided at the end of the power wheel (4), the weight of the flywheel accounting for more than 40% of the weight of the rotating parts of the device.

Images