A quartz sand coarse crushing protection structure

Abstract

The utility model discloses a quartz sand coarse crushing protection structure relates to quartz sand coarse crushing technical field, the utility model discloses a crushing box, motor, collection tank, fan, crushing roller, adjusting plate and pivot, the crushing roller is installed in the crushing box inside, the motor is provided with in the crushing box front end, the adjusting plate is provided with in the crushing box inside, the adjusting plate front and back two ends are provided with the pivot, the pivot outer wall is sleeved with the support ring, the pivot outside is sleeved with the torsional spring, the mounting shaft is installed in the crushing box front end, the crushing roller one end is provided with the synchronous wheel, the synchronous wheel outer wall is sleeved with the belt, the mounting shaft one end is provided with the knock stick, the pivot one end is provided with the force block, the crushing roller one end is sleeved with the gear, the utility model discloses through the intermittent feeding and prevent the crushing roller and stuff, the adjusting plate prevents the stone material splashing, the dust extraction system reduces the pollution, the self -cleaning filter cover reduces the maintenance, solves the coarse crushing pain point, realizes safe and efficient operation.

Description

Technical Field

[0001] This utility model relates to the field of coarse crushing technology of quartz sand, and in particular to a protective structure for coarse crushing of quartz sand. Background Technology

[0002] In the quartz sand processing industry chain, the coarse crushing process is a key step in processing natural quartz blocks into 8-12mm coarse sand particles, providing qualified raw materials for subsequent fine grinding and purification processes. It is widely used in construction, glass, casting and other fields. However, existing quartz sand coarse crushing equipment has many technical defects in actual operation, making it difficult to meet the production requirements of high efficiency, safety and environmental protection.

[0003] Firstly, traditional coarse crushing equipment mostly adopts a continuous feeding method, with quartz blocks falling directly and continuously into the gap between the crushing rollers. This can easily lead to a sudden increase in the load on the crushing rollers due to the accumulation of stone, causing material jamming and motor overload. This not only reduces the coarse crushing efficiency, but also requires a 20-30 minute shutdown for cleaning after a single material jam, and also exacerbates the wear of the crushing rollers, shortening the service life of the equipment.

[0004] Secondly, the protective performance is insufficient. During the coarse crushing process, the quartz blocks are easily squeezed and sheared, which can easily produce small stone chips that fly out. However, the existing equipment lacks an effective top protective structure, and the stone chips can easily splash out from the raw material inlet or the gaps in the equipment, which can cause safety hazards to the operators and also lead to the waste of raw materials.

[0005] Furthermore, dust pollution is a prominent issue. The coarse crushing of quartz sand generates a large amount of dust with a particle size of <5μm. Most existing equipment is not equipped with an efficient dust collection system, and the dust directly diffuses into the working environment, not only polluting the air and harming the respiratory system of operators, but also adhering to the surface of equipment parts, increasing the frequency and difficulty of equipment maintenance.

[0006] Furthermore, some equipment equipped with dust collection systems suffers from filter clogging due to dust accumulation, requiring frequent shutdowns for cleaning and further disrupting the production process. This leads to a decrease in overall processing efficiency, making it difficult to meet the demands of large-scale quartz sand production. Adding corresponding processing equipment would increase the operating costs and maintenance requirements of additional electrical equipment. Therefore, there is an urgent need for a quartz sand coarse crushing protection structure that combines intermittent feeding, safety protection, dust collection, and self-cleaning functions to address the aforementioned technical pain points. Thus, those skilled in the art have provided a quartz sand coarse crushing protection structure to solve the problems mentioned in the background section. Utility Model Content

[0007] 1. Technical Solution

[0008] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0009] This utility model relates to a protective structure for coarse crushing of quartz sand, comprising a crushing box, a motor, a collecting box, a blower, crushing rollers, an adjusting plate, and a rotating shaft. The crushing box contains symmetrically distributed crushing rollers that rotate rotatably. A motor with its output end connected to one end of the crushing rollers is located at the front end of the crushing box. A symmetrically distributed adjusting plate is located inside the crushing box. A rotating shaft, rotating through the crushing box, is located at both ends of the adjusting plate. A support ring is fitted onto the outer wall of the rotating shaft. A torsion spring, with its two ends connected to the support ring and the crushing box respectively, is fitted onto the outer side of the rotating shaft. An installation shaft is rotatably mounted at the front end of the crushing box. Synchronous pulleys are located at the outer end of the crushing rollers in the crushing box and at the end of the installation shaft. Belts are fitted onto the outer walls of the synchronous pulleys. A striking rod is located at one end of the installation shaft. A force-bearing block located on the rotation path of the striking rod is located at one end of the rotating shaft. Meshing gears are fitted onto one end of each crushing roller.

[0010] Furthermore, a pre-storage cavity is provided inside the upper end of the crushing box, a guide plate is provided inside the crushing box between the crushing roller and the adjusting plate, and symmetrically distributed limiting rods are provided inside the crushing box between the guide plate and the adjusting plate;

[0011] Specifically, the pre-storage chamber is used to store quartz sand, which falls onto the guide plate through the opening of the adjustment plate, and is then guided into the gap between the crushing rollers by the guide plate. The excessive expansion of the adjustment plate is limited by the limit rod.

[0012] Furthermore, the inner wall of the lower end of the crushing box is provided with symmetrically distributed guide grooves, and the lower end of the crushing box is provided with a discharge port;

[0013] Specifically, the guide channel guides and gathers the crushed quartz sand, which is then discharged through the outlet.

[0014] Furthermore, a support mesh that penetrates the pre-storage cavity is embedded inside the rear end of the crushing box. A collection box is provided on the rear side of the crushing box. A fan is provided at one end of the collection box. A suction cylinder corresponding to the suction end of the fan is provided inside the one end of the collection box. A suction pipe is connected to one end of the suction cylinder. A suction cover that fits into the crushing box and is sleeved on the outside of the support mesh is provided at one end of the suction pipe.

[0015] Specifically, the suction force of the blower acts on the suction pipe through the suction cylinder, then on the suction hood through the suction pipe, and finally on the inside of the crushing chamber through the support net, sucking up the generated dust and intercepting the quartz sand by the support net.

[0016] Furthermore, the inner wall of the collection box is provided with a filter cover that is sleeved on the outside of the blower. One end of the rotating shaft is rotatably installed inside the crushing box and the suction cylinder. One end of the rotating shaft is provided with a connecting rod located inside the collection cylinder. One end of the connecting rod is provided with an arc-shaped plate. The outer wall of the arc-shaped plate is provided with a brush. The filter cover has an inwardly concave arc-shaped surface corresponding to one end of the arc-shaped plate.

[0017] Specifically, the sucked-in dust is intercepted by the filter cover, and the arc-shaped plate is connected to the rotating shaft by the connecting rod. The rotating shaft drives the arc-shaped plate to rotate at a small angle, and the arc-shaped surface of the filter cover is scraped by the brush to clean the filter cover in real time.

[0018] Furthermore, an ash hopper is provided at the lower end of the collection box, a discharge pipe is provided at the lower end of the ash hopper, a valve is provided inside the discharge pipe, symmetrically distributed guide plates are provided on the inner wall of the collection box, a cone plate is provided below the guide plates, and flow channels are provided on both sides of the cone plate and at the center of the guide plates;

[0019] Specifically, the collected dust is guided into the ash hopper by the guide plate and the cone plate, the suction airflow avoids directly acting on the ash hopper, and the opening and closing of the discharge pipe is controlled by the valve.

[0020] 2. Beneficial effects

[0021] Compared with existing technologies, the advantages of this utility model are:

[0022] In this invention, the crushing rollers inside the crushing box rotate relative to each other to coarsely crush the input quartz sand raw material, quartz blocks. The quartz blocks are pre-stored inside the pre-storage chamber. When the crushing rollers rotate, the synchronous pulley and belt drive the mounting shaft to rotate. During the rotation of the mounting shaft, the striking rod strikes the force block, which in turn drives the rotating shaft to rotate at a small angle. The linkage adjustment plate opens intermittently. When the striking rod passes the force block, the rotating shaft drives the adjustment plate to reset due to the elastic support of the torsion spring. This prevents the stones from splashing out to the outside through the upper opening during the crushing process, thus improving the safety of the coarse crushing process.

[0023] Meanwhile, dust during the crushing process is drawn and collected, improving the environment and enhancing the quality of operation. The rotating shaft is linked to a cleaning structure to clean the filter cover, ensuring the stability of the processing equipment, reducing maintenance work and costs, and improving ease of use. The adjusting plate opens and closes intermittently, feeding material intermittently to avoid stone accumulation.

[0024] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0027] Figure 2 This is a rear-view three-dimensional structural diagram of the present invention;

[0028] Figure 3 This is a schematic diagram of the main sectional three-dimensional structure of this utility model;

[0029] Figure 4 This is a top-view three-dimensional structural diagram of the adjustment plate of this utility model;

[0030] Figure 5 This is a rear cross-sectional perspective view of the collection box of this utility model.

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 1. Crushing box; 2. Pre-storage chamber; 3. Suction hood; 4. Motor; 5. Collection box; 6. Fan; 7. Ash hopper; 8. Suction pipe; 9. Support net; 10. Gear; 11. Limiting rod; 12. Crushing roller; 13. Discharge port; 14. Guide plate; 15. Flow guide channel; 16. Adjusting plate; 17. Filter cover; 18. Torsion spring; 19. Rotating shaft; 20. Support ring; 21. Mounting shaft; 22. Synchronous pulley; 23. Impact rod; 24. Belt; 25. Suction cylinder; 26. Valve; 27. Connecting rod; 28. Brush; 29. ​​Arc plate; 30. Flow guide plate; 31. Conical plate; 32. Discharge pipe; 33. Stress block. Detailed Implementation

[0033] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0037] Example 1

[0038] Please see Figure 1-5 As shown, this embodiment is a protective structure for coarse crushing of quartz sand, including a crushing box 1, a motor 4, a collection box 5, a blower 6, crushing rollers 12, an adjusting plate 16, and a rotating shaft 19. The crushing rollers 12 are symmetrically distributed and rotatably mounted inside the crushing box 1. A motor 4 with its output end connected to one end of the crushing rollers 12 is located at the front end of the crushing box 1. The adjusting plate 16 is symmetrically distributed inside the crushing box 1. Rotating shafts 19, which rotatably penetrate the crushing box 1, are located at both ends of the adjusting plate 16. Support rings are sleeved on the outer wall of the rotating shaft 19. 20. A torsion spring 18 is sleeved on the outside of the rotating shaft 19, with its two ends connected to the support ring 20 and the crushing box 1 respectively. An installation shaft 21 is rotatably installed at the front end of the crushing box 1. A synchronous wheel 22 is provided at one end of the crushing roller 12 on the outside of the crushing box 1 and at one end of the installation shaft 21. A belt 24 is sleeved on the outer wall of the synchronous wheel 22. A striking rod 23 is provided at one end of the installation shaft 21. A force-bearing block 33 is provided at one end of the rotating shaft 19 on the rotation path of the striking rod 23. A gear 10 that meshes with each other is sleeved at one end of the crushing roller 12.

[0039] The upper end of the crushing box 1 is provided with a pre-storage chamber 2. The crushing box 1 is provided with a guide plate 14 located between the crushing roller 12 and the adjusting plate 16. The crushing box 1 is provided with symmetrically distributed limit rods 11 located between the guide plate 14 and the adjusting plate 16.

[0040] The inner wall of the lower end of the crushing box 1 is provided with symmetrically distributed guide grooves 15, and the lower end of the crushing box 1 is provided with a discharge port 13.

[0041] A support net 9 that penetrates the pre-storage chamber 2 is embedded inside the rear end of the crushing box 1. A collection box 5 is set on the rear side of the crushing box 1. A fan 6 is set at one end of the collection box 5. A suction cylinder 25 corresponding to the suction end of the fan 6 is set inside the collection box 5. A suction pipe 8 is connected to one end of the suction cylinder 25. A suction cover 3 that fits into the crushing box 1 and is sleeved on the outside of the support net 9 is set at one end of the suction pipe 8.

[0042] The inner wall of the collection box 5 is provided with a filter cover 17 that is sleeved on the outside of the blower 6. One end of the rotating shaft 19 is rotatably installed inside the crushing box 1 and the suction cylinder 25. One end of the rotating shaft 19 is provided with a connecting rod 27 located inside the collection cylinder. One end of the connecting rod 27 is provided with an arc plate 29. The outer wall of the arc plate 29 is provided with a brush 28. The filter cover 17 has an inwardly concave arc surface corresponding to one end of the arc plate 29.

[0043] A hopper 7 is provided at the lower end of the collection box 5, a discharge pipe 32 is provided at the lower end of the hopper 7, a valve 26 is provided inside the discharge pipe 32, symmetrically distributed guide plates 30 are provided on the inner wall of the collection box 5, a cone plate 31 is provided below the guide plate 30, and flow channels are provided on both sides of the cone plate 31 and at the center of the guide plate 30.

[0044] Based on the implementation steps of Embodiment 1: First, turn on the fan 6 at one end of the collection box 5. The suction force generated by the fan 6 is transmitted to the suction hood 3 through the suction cylinder 25 and suction pipe 8, and then acts on the inside of the crushing box 1 through the support net 9. At this time, a slight airflow can be observed at the suction hood 3 to ensure that the dust suction channel is unobstructed. Turn on the motor 4 at the front end of the crushing box 1. The output end of the motor 4 drives the two sets of crushing rollers 12 to rotate relative to each other. Through the meshing of the gear 10, the crushing rollers 12 rotate in opposite directions. At the same time, the synchronous pulley 22 at one end of the outer side of the crushing roller 12 drives the mounting shaft 21 to rotate through the belt 24. The striking rod 23 at one end of the mounting shaft 21 moves in a circle with the mounting shaft 21. The rotation speed is the same as that of the crushing roller 12. When the striking rod 23 rotates to contact the force block 33 at one end of the rotating shaft 19, it will generate an impact force on the force block 33, causing the rotating shaft 19 to rotate around the side wall of the crushing box 1. As the angle rotates, the rotating shaft 19 synchronously drives the adjusting plate 16 inside the crushing box 1 to rotate, so that a feeding gap is formed between the adjusting plate 16 and the inner wall of the crushing box 1. The quartz blocks in the pre-storage chamber 2 fall into the guide plate 14 below through this gap. The guide plate 14 guides the blocks to the gap between the two sets of crushing rollers 12, avoiding uneven crushing caused by block displacement. When the striking rod 23 disengages from the force block 33, the torsion spring 18 on the outside of the rotating shaft 19 releases its elastic force, driving the rotating shaft 19 to reset and the adjusting plate 16 to close. Through the cycle of striking and resetting, the adjusting plate 16 achieves intermittent feeding, avoiding the problems of material jamming and excessive load on the crushing rollers 12 caused by traditional continuous feeding. During this period, the limiting rod 11 inside the crushing box 1 limits the opening and closing angle of the adjusting plate 16 to prevent the adjusting plate 16 from being over-expanded, causing large pieces of stone to fall rapidly, and further avoiding impact overload on the crushing rollers 12.

[0045] Quartz stones falling between crushing rollers 12 are squeezed and sheared by the relatively rotating crushing rollers 12, and crushed into coarse sand particles. During the crushing process, the adjusting plate 16 is always in an intermittent closed state, which can prevent small stone chips that are splashed during crushing from splashing out from the opening below the pre-storage chamber 2. Traditional coarse crushing equipment does not have this protection, which can easily lead to injury to operators and improve operational safety. The crushed coarse sand particles fall into the lower end of the crushing box 1 and are collected to the discharge port 13 through the symmetrically distributed guide channels 15 on the inner wall. The guide channels 15 prevent coarse sand from accumulating at the bottom of the box and are finally transported to the subsequent screening equipment through the discharge port 13. The quartz sand dust generated during the coarse crushing process is drawn in by the suction force of the blower 6, passes through the support net 9, enters the suction hood 3, and then enters the collection box 5 through the suction pipe 8 and the suction cylinder 25.

[0046] After dust enters the collection box 5, it is guided to the cone plate 31 by the guide plate 30 on the inner wall, and falls into the ash hopper 7 through the flow channels on both sides of the cone plate 31 and the center of the guide plate 30. The flow channel design avoids the airflow directly impacting the dust in the ash hopper 7 and prevents the dust from being raised again. At the same time, the filter cover 17 on the outside of the fan 6 intercepts a small amount of fine dust to prevent it from entering the fan 6 and damaging the components. When the rotating shaft 19 rotates, it rotates synchronously with the opening and closing of the adjusting plate 16. The connecting rod 27 at one end drives the arc plate 29 to rotate back and forth at a small angle. The brush 28 on the outer wall of the arc plate 29 scrapes against the concave arc surface inside the filter cover 17 to clean the dust attached to the surface of the filter cover 17 in real time. This avoids the problem of frequent shutdowns and cleaning of the filter cover 17 required by traditional equipment. It can operate continuously without cleaning the filter cover 17, reducing the frequency of maintenance.

[0047] Open valve 26 of discharge pipe 32 at the lower end of ash hopper 7 to discharge the collected dust into a sealed bag, which can be recycled as building sealant, realizing solid waste utilization. After cleaning, close valve 26 and check whether there is any dirt residue on the surface of crushing roller 12. Wash it clean with high-pressure water. Check that the adjusting plate 16, striking rod 23, and force block 33 are unworn. Check the tension of belt 24 of synchronous pulley 22. If it is loose, adjust the tension of belt 24. The adjusting plate 16 is closed intermittently to prevent stone from splashing. There is no risk of stone chips injuring people in the working area, which solves the problem of lack of protection in traditional coarse crushing. Intermittent feeding avoids material jamming on crushing roller 12. The dust collection system reduces the dust concentration in the working area. The filter cover 17 is cleaned in real time to reduce the number of maintenance times, solving the problems of dust pollution and high maintenance costs.

[0048] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A protective structure for coarse crushing of quartz sand, characterized in that: The system includes a crushing box (1), a motor (4), a collection box (5), a blower (6), crushing rollers (12), an adjusting plate (16), and a rotating shaft (19). The crushing box (1) is rotatably mounted with symmetrically distributed crushing rollers (12). A motor (4) with its output end connected to one end of each crushing roller (12) is located at the front end of the crushing box (1). A symmetrically distributed adjusting plate (16) is located inside the crushing box (1). A rotating shaft (19) is rotatably mounted at both the front and rear ends of the adjusting plate (16), penetrating the crushing box (1). A support ring (20) is fitted onto the outer wall of the rotating shaft (19). The rotating shaft (19) is externally... A torsion spring (18) is sleeved on the side and connected to the support ring (20) and the crushing box (1) respectively at both ends. An installation shaft (21) is rotatably installed at the front end of the crushing box (1). A synchronous wheel (22) is provided at one end of the crushing roller (12) on the outside of the crushing box (1) and at one end of the installation shaft (21). A belt (24) is sleeved on the outer wall of the synchronous wheel (22). A striking rod (23) is provided at one end of the installation shaft (21). A force-bearing block (33) is provided at one end of the rotating shaft (19) on the rotation path of the striking rod (23). A gear (10) meshing with each other is sleeved at one end of the crushing roller (12).

2. The quartz sand coarse crushing protective structure according to claim 1, characterized in that: The crushing box (1) has a pre-storage cavity (2) inside its upper end. The crushing box (1) has a guide plate (14) located between the crushing roller (12) and the adjusting plate (16) inside its interior. The crushing box (1) also has symmetrically distributed limiting rods (11) located between the guide plate (14) and the adjusting plate (16) inside its interior.

3. The quartz sand coarse crushing protective structure according to claim 1, characterized in that: The crushing box (1) has symmetrically distributed guide grooves (15) on the inner wall of the lower end, and a discharge port (13) is opened inside the lower end of the crushing box (1).

4. The quartz sand coarse crushing protective structure according to claim 2, characterized in that: The crushing box (1) has a support net (9) embedded inside the rear end, which penetrates the pre-storage cavity (2). A collection box (5) is provided on the rear side of the crushing box (1). A fan (6) is provided at one end of the collection box (5). A suction cylinder (25) corresponding to the suction end of the fan (6) is provided inside one end of the collection box (5). A suction pipe (8) is connected to one end of the suction cylinder (25). A suction cover (3) is provided at one end of the suction pipe (8) that fits against the crushing box (1) and is sleeved on the outside of the support net (9).

5. The quartz sand coarse crushing protective structure according to claim 4, characterized in that: The inner wall of the collection box (5) is provided with a filter cover (17) sleeved on the outside of the fan (6). One end of the rotating shaft (19) is rotatably installed inside the crushing box (1) and the suction cylinder (25). One end of the rotating shaft (19) is provided with a connecting rod (27) located inside the collection cylinder. One end of the connecting rod (27) is provided with an arc plate (29). The outer wall of the arc plate (29) is provided with a brush (28). The filter cover (17) is concave arc surface corresponding to one end of the arc plate (29).

6. The quartz sand coarse crushing protective structure according to claim 1, characterized in that: The collection box (5) is provided with an ash hopper (7) at the lower end, and a discharge pipe (32) is provided at the lower end of the ash hopper (7). A valve (26) is provided inside the discharge pipe (32). Symmetrically distributed guide plates (30) are provided on the inner wall of the collection box (5). A cone plate (31) is provided below the guide plate (30). Flow channels are provided on both sides of the cone plate (31) and at the center of the guide plate (30).

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