Efficient quartz sand crushing device

Abstract

The utility model discloses an efficient quartz sand crushing device which comprises a base, a crushing cylinder is arranged on the base, a feeding port is formed in the upper end of the crushing cylinder and provided with a feeding hopper, a discharging port is formed in the lower end of the crushing cylinder and connected with a discharging pipe, a sealing cover is arranged at the upper end of the hopper, and a rotating shaft is coaxially arranged in the crushing cylinder. The lower end of the rotating shaft is rotationally connected with a bearing seat arranged at the bottom of the smashing barrel, a driving mechanism used for driving the rotating shaft to rotate is arranged at the bottom of the smashing barrel, multiple stages of sieve plates are sequentially arranged in the smashing barrel from top to bottom, and each sieve plate sleeves the rotating shaft through a center hole of the sieve plate and is fixedly connected with the inner wall of the smashing barrel. A positioning sleeve is coaxially arranged on the rotating shaft above each sieve plate, an annular positioning plate is coaxially arranged outside the positioning sleeve, the positioning sleeve and the annular positioning plate are connected through a plurality of fixing rods, and a plurality of crushing hammer heads are arranged on the annular positioning plate in the circumferential direction. The quartz sand grinder is high in quartz sand grinding efficiency, good in grinding granularity uniformity, small in grinding tool abrasion in the grinding process and convenient to replace and maintain.

Description

Technical Field

[0001] This utility model relates to the technical field of quartz sand processing equipment, and in particular to a high-efficiency quartz sand crushing device. Background Technology

[0002] Quartz sand is quartz particles or powder produced by crushing and processing quartz stone. Quartz stone is a non-metallic mineral, a hard, wear-resistant, and chemically stable silicate mineral. Quartz sand is milky white or colorless and translucent, with a Mohs hardness. Quartz sand is an important industrial mineral raw material, a non-hazardous chemical, and is widely used in glass, casting, ceramics and fireproof materials, ferrosilicon smelting, metallurgical flux, metallurgy, construction, chemical industry, plastics, rubber, abrasives, filter media and other industries.

[0003] Currently, in actual processing, quartz sand undergoes a series of purification processes. The main process for producing finished quartz sand is to crush quartz blocks into quartz sand particles. However, during the crushing process, it is difficult to crush quartz blocks into qualified quartz sand particles in one go. The resulting particle size is not uniform, which easily clogs the screen, increases energy consumption, and reduces crushing efficiency. In addition, the crushing process causes severe wear on the crushing tools, and replacing the crushing tools is inconvenient. Utility Model Content

[0004] This invention provides a high-efficiency quartz sand crushing device, which solves the problems of low crushing efficiency, uneven particle size of crushed quartz sand, severe wear of crushing abrasives during crushing, and inconvenience in replacing crushing abrasives in traditional quartz sand crushers.

[0005] This utility model provides a high-efficiency quartz sand crushing device, including a base, a crushing cylinder on the base, a feeding port and a feeding hopper at the upper end of the crushing cylinder, a discharge port and a discharge pipe at the lower end, a sealing cover at the upper end of the hopper, a rotating shaft coaxially arranged inside the crushing cylinder, the lower end of the rotating shaft being rotatably connected to a bearing seat at the bottom of the crushing cylinder, a drive mechanism for driving the rotating shaft to rotate at the bottom of the crushing cylinder, multiple sieve plates arranged sequentially from top to bottom inside the crushing cylinder, each sieve plate being sleeved on the rotating shaft through its central hole and fixedly connected to the inner wall of the crushing cylinder, a positioning sleeve coaxially arranged on the rotating shaft above each sieve plate, an annular positioning plate coaxially arranged outside the positioning sleeve, the positioning sleeve and the annular positioning plate being connected by multiple fixing rods, multiple crushing hammers arranged along the circumference of the annular positioning plate, a grinding body arranged on the annular positioning plate between two adjacent crushing hammers, each grinding body being connected to the positioning sleeve by an adjusting rod.

[0006] In the above technical solution, the inner wall of the crushing cylinder is provided with an inner lining cylinder, and the inner wall of the inner lining cylinder is provided with multiple grinding internal teeth along the circumferential direction. The front side of each grinding body is an arc surface, and the arc surface is provided with grinding external teeth.

[0007] In the above technical solution, the inner lining cylinder is further composed of multiple cylinder units, and two adjacent cylinder units are connected by a socket structure.

[0008] In the above technical solution, each breaker hammer includes an upper mounting plate, a lower mounting plate, a rolling gear, and a pin. The upper mounting plate and the lower mounting plate are respectively set on the upper and lower end faces of the annular positioning plate. A pin is set between the upper mounting plate and the lower mounting plate. A rolling gear is rotatably set on the pin. A material distribution block is set on each annular positioning plate. The material distribution block is sleeved on the rotating shaft through its axial through hole.

[0009] In the above technical solution, two crushing plates are further provided on both sides of the upper mounting plate and the lower mounting plate, and multiple protruding hemispheres are arrayed on the outer side of each crushing plate.

[0010] In the above technical solution, the adjusting rod further includes a fixed rod, a telescopic spring, and a guide tube. One end of the fixed rod is fixedly connected to the positioning sleeve, and the other end is connected to the guide tube through the telescopic spring. One end of the telescopic spring is elastically fixedly connected to the fixed rod, and the other end is elastically fixedly connected to the guide tube. The fixed rod part is inserted into the guide tube and slides with the guide tube. The guide tube is inserted into the radial guide hole provided on the side wall of the annular positioning plate.

[0011] As can be seen from the above technical solutions, this utility model provides a high-efficiency quartz sand crushing device.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The drive mechanism drives the rotating shaft to move the crushing hammer and grinding media on the annular positioning plate to quickly and efficiently crush the quartz sand in the crushing cylinder. The crushed quartz sand has good particle size uniformity, the crushing hammer and grinding media have little wear, and maintenance and replacement are convenient.

[0014] 2. The inner lining cylinder prevents wear on the crushing cylinder. The inner lining cylinder is made of multi-segment splicing, which makes it easy to disassemble and repair or replace the parts with more severe wear. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency quartz sand crushing device proposed in this utility model.

[0017] Figure 2This is a partial structural cross-sectional schematic diagram of a high-efficiency quartz sand crushing device proposed in this utility model;

[0018] Figure 3 This is a top view schematic diagram of the installation structure of the crushing hammer and grinding body of a high-efficiency quartz sand crushing device proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the rolling gear installation structure of a high-efficiency quartz sand crushing device proposed in this utility model;

[0020] Figure 5 This is a cross-sectional schematic diagram of the adjusting rod structure of a high-efficiency quartz sand crushing device proposed in this utility model;

[0021] Figure 6 This is a cross-sectional schematic diagram of the socket structure of a high-efficiency quartz sand crushing device proposed in this utility model;

[0022] Figure 7 This is a side view of the crushing plate structure of a high-efficiency quartz sand crushing device proposed in this utility model.

[0023] In the picture:

[0024] 1-Base; 111-Motor; 112-Reducer;

[0025] 2- Crushing cylinder; 20- Inner liner cylinder; 21- Feed hopper; 22- Discharge pipe; 23- Sealing cover; 24- Grinding teeth; 201- Cylinder unit; 202- Socket structure; 203- Annular groove; 204- Annular boss;

[0026] 3- Rotating shaft;

[0027] 4-Sieve plate;

[0028] 5-Positioning sleeve;

[0029] 6- Annular positioning plate; 61- Fixing rod; 62- Material distribution block;

[0030] 7-Crusher hammer; 71-Upper mounting plate; 72-Lower mounting plate; 73-Rolling gear; 74-Pin; 75-Crushing plate; 76-Hemisphere;

[0031] 8-Grinding body; 81-Grinding external teeth;

[0032] 9-Adjusting rod; 91-Fixed rod; 92-Telescopic spring; 93-Guide tube. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0034] Example 1:

[0035] See Figure 1-7 A high-efficiency quartz sand crushing device includes a base 1, a crushing cylinder 2 mounted on the base 1, a feeding port and a feeding hopper 21 at the upper end of the crushing cylinder 2, and a discharge port and discharge pipe 22 at the lower end. The bottom plate of the crushing cylinder 2 is a sloped surface, so that the crushed quartz sand can automatically gather along the slope and be discharged into the discharge pipe 22. A sealing cover 23 is mounted on the upper end of the feeding hopper 21 to prevent dust generated during the crushing process from overflowing. A rotating shaft 3 is coaxially mounted inside the crushing cylinder 2, and the lower end of the rotating shaft 3 is rotatably connected to a bearing seat at the bottom of the crushing cylinder 2. A drive mechanism 11 for driving the rotating shaft 3 is mounted at the bottom of the crushing cylinder 2. Multiple screen plates 4 are arranged sequentially from top to bottom inside the crushing cylinder 2. Each screen plate 4 is fitted onto the rotating shaft 3 through its central hole and is fixedly connected to the inner wall of the crushing cylinder 2. A fixed bearing is coaxially mounted on the rotating shaft 3 above each screen plate 4. Positioning sleeve 5, with an annular positioning plate 6 coaxially mounted on its exterior. Positioning sleeve 5 and annular positioning plate 6 are connected by multiple radially arranged fixing rods 61. Annular positioning plate 6 has two radially distributed crushing hammers 7 arranged along its circumference. The two crushing hammers 7 are used to crush larger quartz sand particles and then perform pre-crushing. Grinding bodies 8 are arranged on the annular positioning plate 6 between two adjacent crushing hammers 7. Each grinding body 8 is connected to positioning sleeve 5 by an adjusting rod 9. The adjusting rod 9 is telescopic. During high-speed rotation, the grinding body 8 has a large centrifugal force and can gradually approach the inner wall of the crushing cylinder 2 to crush and grind the quartz sand particles. The driving mechanism 11 drives the rotating shaft 3 to drive the crushing hammers 7 and grinding bodies 8 on the annular positioning plate 6 to achieve rapid and efficient crushing of the quartz sand in the crushing cylinder 2. The crushed quartz sand has good particle size uniformity, and the crushing hammers 7 and grinding bodies 8 have little wear, making maintenance and replacement convenient.

[0036] In this embodiment, see Figure 3 , 5 6. The inner wall of the crushing cylinder 2 is coaxially fitted with an inner liner cylinder 20. The inner liner cylinder 20 is fixedly connected to the inner wall of the crushing cylinder 2 by screws. The inner wall of the inner liner cylinder 20 is provided with multiple axially distributed grinding inner teeth 24 along the circumferential direction. The grinding inner teeth 24 can be straight teeth or conical teeth. The rear end of each grinding body 8 is connected to the adjusting rod 9, and the front end can be extended to approach the inner wall of the inner liner cylinder 20 through the adjusting rod 9. The front end face of the grinding body 8 is an arc surface, and the arc surface is provided with vertically extending grinding outer teeth 81. The grinding outer teeth 81 are used to crush the quartz sand particles between the inner wall of the crushing cylinder 2. Specifically, the grinding outer teeth 81 rotate relative to the grinding inner teeth 24 to grind the quartz sand, resulting in high grinding efficiency.

[0037] In this embodiment, see Figure 6The inner liner cylinder 20 is composed of multiple cylinder units 201. Two adjacent cylinder units 201 are connected by a socket structure 202. The socket structure 202 includes a socket at the end of one cylinder unit 201 and an insertion port at the end of another cylinder unit 201. The socket is an annular groove 203 provided at the corresponding opening of the cylinder unit 201, and the insertion port is an annular boss 204 provided at the corresponding opening of the cylinder unit 201. Two adjacent cylinder units 201 are connected by inserting the corresponding annular boss 204 into the corresponding annular groove 203, which facilitates the individual disassembly and repair / replacement of severely worn parts on the inner liner cylinder 20.

[0038] In this embodiment, see Figure 2 , 3 4. Each crusher hammer 7 includes an upper mounting plate 71, a lower mounting plate 72, a rolling gear 73, and a pin 74. The upper mounting plate 71 and the lower mounting plate 72 are respectively set on the upper and lower end faces of the annular positioning plate 6. The pin 74 is set between the upper mounting plate 71 and the lower mounting plate 72. The upper and lower ends of the pin 74 are fixedly connected to the upper mounting plate 71 and the lower mounting plate 72 respectively. The pin 74 is rotatably connected to the annular positioning plate 6 and the rolling gear 73 through the axial through hole of the rolling gear 73. The rotating shaft 3 drives the annular positioning plate 6 and the rolling gear 73 to rotate, which facilitates the crushing of the quartz sand particles near the inner wall of the crushing cylinder 2. Each annular positioning plate 6 is provided with a material distribution block 62. The material distribution block 62 is cone-shaped and is sleeved on the rotating shaft 3 through its axial through hole. The material distribution block 62 facilitates the uniform dispersion of the quartz sand added to the crushing cylinder 2 into the crushing range of the crusher hammer 7, thereby increasing the crushing efficiency.

[0039] In this embodiment, see Figure 3 , 7 Two crushing plates 75 are set on both sides of the upper mounting plate 71 and the lower mounting plate 72. Multiple protruding hemispheres 76 are arrayed on the outer side of each crushing plate 75. The protruding hemispheres 76 can first impact and pre-crush the quartz sand blocks added into the crushing cylinder 2, and then crush the crushed particles to prevent large pieces of quartz sand from directly colliding and damaging the grinding tool.

[0040] In this embodiment, see Figure 3 , 5The adjusting rod 9 includes a fixed rod 91, a telescopic spring 92, and a guide tube 93. The guide hole of the guide tube 93 has a rectangular cross-section so that the fixed rod 91 can only move along the axial direction of the guide tube 93 and cannot rotate relative to it. One end of the fixed rod 91 is fixedly connected to the positioning sleeve 5, and the other end is connected to the guide tube 93 through the telescopic spring 92. The telescopic spring 92 is a tension spring. One end of the telescopic spring 92 is elastically fixedly connected to the fixed rod 91, and the other end is elastically fixedly connected to the guide tube 93. The fixed rod 91 is partially inserted into the guide tube 93 and slides in a guide-sliding fit with the guide tube 93. The guide tube 93 is inserted into the radial guide hole set on the side wall of the annular positioning plate 6 for a guide-sliding fit. This allows the grinding body 8 to rotate at a high speed, so that under the action of centrifugal force, the guide tube 93 can drive the telescopic spring 92 to pull it closer to the grinding inner teeth 24 to crush the quartz sand.

[0041] In this embodiment, see Figure 1 The drive mechanism 11 includes a motor 111 and a reducer 112. The motor 111 and the reducer 112 are fixed on the base 1. The output shaft of the motor 111 is connected to the input end of the reducer 112, and the output end of the reducer 112 is connected to the lower end of the rotating shaft 3. The motor 111 drives the reducer 112 to drive the rotating shaft 3 to rotate, thereby adjusting and controlling the rotation speed of the rotating shaft 3. This allows the rotating shaft 3 to perform grinding work on the grinding body 8 at a higher rotation speed. At a lower rotation speed, only the crushing hammer 7 crushes and pulverizes the quartz sand particles or quartz sand blocks in the crushing cylinder 2.

[0042] As can be seen from the above technical solution, when in use, the sealing cover 23 is opened, and the quartz sand blocks are added into the crushing cylinder 2 from the feeding hopper 21. The quartz sand blocks are evenly dispersed into the crushing hammer head 7 by the material distribution block 62. The driving mechanism 11 drives the rotating shaft 3 to drive the crushing hammer head 7 on the annular positioning plate 6 to crush the quartz sand blocks in the crushing cylinder 2 at low speed. Then, the driving mechanism 11 drives the rotating shaft 3 to drive the grinding body 8 on the annular positioning plate 6 to crush the quartz sand blocks in the crushing cylinder 2 at high speed. The crushed quartz sand is screened through the multi-stage sieve plate 4, and the quartz sand that reaches the qualified particle size passes through to continue crushing.

[0043] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of the invention is indicated by the claims.

[0044] It should be understood that this utility model is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model.

Claims

1. A high-efficiency quartz sand crushing device, characterized in that: The system includes a base (1), on which a crushing cylinder (2) is mounted. The upper end of the crushing cylinder (2) is a feeding port with a feeding hopper (21), and the lower end is a discharge port connected to a discharge pipe (22). A sealing cover (23) is mounted on the upper end of the feeding hopper (21). A rotating shaft (3) is coaxially mounted inside the crushing cylinder (2). The lower end of the rotating shaft (3) is rotatably connected to a bearing seat at the bottom of the crushing cylinder (2). A driving mechanism (11) for driving the rotating shaft (3) to rotate is mounted at the bottom of the crushing cylinder (2). Multiple sieve plates (4) are arranged sequentially from top to bottom inside the crushing cylinder (2). Each sieve... The plate (4) is fitted onto the rotating shaft (3) through its central hole and is fixedly connected to the inner wall of the crushing cylinder (2). A positioning sleeve (5) is coaxially arranged on the rotating shaft (3) above each of the screen plates (4). An annular positioning plate (6) is coaxially arranged outside the positioning sleeve (5). The positioning sleeve (5) and the annular positioning plate (6) are connected by multiple fixing rods (61). Multiple crushing hammers (7) are arranged on the annular positioning plate (6) along the circumferential direction. A grinding body (8) is arranged on the annular positioning plate (6) between two adjacent crushing hammers (7). Each grinding body (8) is connected to the positioning sleeve (5) by an adjusting rod (9).

2. The high-efficiency quartz sand crushing device according to claim 1, characterized in that, The inner wall of the crushing cylinder (2) is provided with an inner lining cylinder (20), and the inner wall of the inner lining cylinder (20) is provided with a plurality of grinding inner teeth (24) along the circumferential direction. The front side of each grinding body (8) is an arc surface, and the arc surface is provided with grinding outer teeth (81).

3. The high-efficiency quartz sand crushing device according to claim 2, characterized in that, The inner lining cylinder (20) is composed of multi-segment cylinder units (201), and two adjacent cylinder units (201) are connected by a socket structure (202).

4. The high-efficiency quartz sand crushing device according to claim 1, characterized in that, Each of the aforementioned hammerheads (7) includes an upper mounting plate (71), a lower mounting plate (72), a rolling gear (73), and a pin (74). The upper mounting plate (71) and the lower mounting plate (72) are respectively disposed on the upper and lower end faces of the annular positioning plate (6). The pin (74) is disposed between the upper mounting plate (71) and the lower mounting plate (72). The rolling gear (73) is rotatably disposed on the pin (74). A material distribution block (62) is disposed on each of the annular positioning plates (6). The material distribution block (62) is sleeved on the rotating shaft (3) through its axial through hole.

5. The high-efficiency quartz sand crushing device according to claim 4, characterized in that, Two breaking plates (75) are provided on both sides of the upper mounting plate (71) and the lower mounting plate (72), and multiple protruding hemispheres (76) are arrayed on the outer side of each breaking plate (75).

6. The high-efficiency quartz sand crushing device according to claim 2, characterized in that, The adjusting rod (9) includes a fixed rod (91), a telescopic spring (92), and a guide tube (93). One end of the fixed rod (91) is fixedly connected to the positioning sleeve (5), and the other end is connected to the guide tube (93) through the telescopic spring (92). One end of the telescopic spring (92) is elastically fixedly connected to the fixed rod (91), and the other end is elastically fixedly connected to the guide tube (93). The fixed rod (91) is partially inserted into the guide tube (93) and slides in a guiding manner with the guide tube (93). The guide tube (93) passes through a radial guide hole provided on the side wall of the annular positioning plate (6).

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