A raw ore crushing device

Abstract

This utility model relates to the field of raw ore processing technology and discloses a raw ore crushing device, including a crushing box. A crushing mechanism is provided on the left side surface and inside of the crushing box, and a screen box connected to its interior is fixedly connected to the lower end of the crushing box. A duct connected to its interior is fixedly connected to the front surface of the crushing box above the crushing mechanism, and a fan connected to its interior is fixedly connected to the front end of the duct. A filter plate is fixedly connected inside the duct, and an anti-clogging mechanism is provided on the upper surface and inside of the duct behind the filter plate. This utility model uses a dynamic shearing structure with opposing rotating crushing rollers. During the crushing process, the filter plate effectively intercepts dust, preventing dust from entering the fan and causing equipment wear or blockage, significantly extending the fan's service life. Combined with the reciprocating brushing function of the anti-clogging mechanism, it can automatically remove dust adhering to the filter plate surface, ensuring continuous ventilation efficiency of the filter plate and preventing dust removal system failure.

Description

Technical Field

[0001] This utility model relates to the field of raw ore processing technology, specifically a raw ore crushing device. Background Technology

[0002] Raw ore crushing is a core step in the mineral processing flow, and its efficiency directly affects the cost and quality of subsequent beneficiation, purification, and comprehensive resource utilization.

[0003] However, the crushing effect of ordinary coal mining raw ore crushing equipment on the market is not ideal, and the crushing efficiency is relatively low. It is not very convenient for people to use when using coal mining raw ore crushing equipment, which affects people's work efficiency, fails to meet people's needs, and brings inconvenience to people's lives.

[0004] A Chinese patent discloses a raw ore crushing device for coal mining (authorization announcement number CN211706890U). The patented technology includes:

[0005] By using the feed inlet, fixed block, hydraulic rod, electric hammer fixed block, electric hammer, first rotating shaft, roller, crushing teeth and second rotating shaft in coordination, the raw ore crushing device for coal mining achieves high crushing efficiency, thus solving the problem of low crushing efficiency of general raw ore crushing devices for coal mining. This makes it more worry-free and reassuring for people to use the raw ore crushing device for coal mining, further meeting people's needs and bringing convenience to people's lives.

[0006] By incorporating a dust suction port, a dust suction casing, and a blower body, the large amount of dust generated during the crushing process of the raw ore crushing device in coal mining can be discharged outside the device through the dust suction port and the blower body. This makes the raw ore crushing device operate more smoothly, increases its efficiency, further meets people's needs, and brings convenience to people's lives.

[0007] However, it has certain drawbacks: the dust generated during the crushing process flows directly through the fan body without effective filtration. The long-term impact of high-hardness particles and a large amount of dust will cause the impeller inside the fan to wear more rapidly, increase the operating resistance, and even cause equipment blockage or failure. This not only significantly shortens the service life of the fan and increases maintenance costs, but may also cause dust to overflow due to the failure of the dust removal system, thus deteriorating the working environment. Utility Model Content

[0008] The purpose of this invention is to provide a raw ore crushing device to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A raw ore crushing device includes a crushing box, a crushing mechanism is provided on the left side surface and inside of the crushing box, and a screen box connected to the lower end of the crushing box is fixedly connected to the screen box. A discharge hole is opened on the left side surface of the screen box, and a screen plate is fixedly connected to the inside of the screen box. A discharge pipe connected to the inside of the screen box is fixedly connected to the lower surface of the screen box. An air duct connected to the inside of the crushing box is fixedly connected to the front surface of the crushing box above the crushing mechanism. A fan connected to the inside of the air duct is fixedly connected to the front end of the air duct.

[0011] A filter plate is fixedly connected inside the air duct, and a recovery pipe connected to the inside of the filter plate is fixedly connected to the lower surface of the air duct behind the filter plate. A non-woven bag is fixedly sleeved on the lower end of the recovery pipe. An anti-clogging mechanism is provided on the upper surface and inside the air duct behind the filter plate.

[0012] As a further improvement of this utility model: the crushing mechanism includes two motors, one in front and one behind, and a crushing roller is fixedly connected to the output end of the motor.

[0013] As a further embodiment of this utility model: the anti-blocking mechanism includes a fixed plate, a second motor is fixedly connected to the rear surface of the fixed plate, a turntable is fixedly connected to the output end of the second motor, a rotating plate is rotatably connected to the outer edge of the front surface of the turntable, a sliding rod is rotatably connected to the upper end of the rear surface of the rotating plate, a slider is movably sleeved on the outside of the sliding rod, and a fixed block is fixedly connected to the upper end of the sliding rod. A fixed rod is fixedly connected to the front end of the lower surface of the fixed block, and a brush plate is fixedly connected to the lower end of the fixed rod.

[0014] As a further improvement of this utility model, the left end of the sieve plate is inclined downward.

[0015] As a further embodiment of this utility model: both motors are fixedly connected to the left side surface of the crushing box, the crushing roller is located inside the crushing box, and the right end of the crushing roller is rotatably connected to the right side surface inside the crushing box.

[0016] As a further embodiment of this utility model: the lower end of the fixing plate is fixedly connected to the upper surface of the air duct, the rear end of the slider is fixedly connected to the front surface of the fixing plate, the fixing rod movably penetrates the upper surface of the air duct, and the brush plate movably fits against the rear surface of the filter plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention achieves efficient ore crushing through a dynamic shearing structure with counter-rotating crushing rollers. During the crushing process, filter plates effectively intercept dust, preventing it from entering the blower and causing wear or blockage, thus significantly extending the blower's service life. Combined with the reciprocating brushing function of the anti-blocking mechanism, dust adhering to the filter plate surface is automatically removed, ensuring continuous ventilation efficiency and preventing dust removal system failure. Simultaneously, the inclined screen plate's grading and screening structure enables rapid separation of powder and particles, forming an integrated operating system encompassing crushing, active dust removal, automatic anti-blocking, and screening and recycling, significantly improving the cleanliness of the production environment and resource utilization. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a raw ore crushing device;

[0020] Figure 2 This is a top view of the crushing mechanism in a raw ore crushing device;

[0021] Figure 3 This is a partial schematic diagram of a raw ore crushing device;

[0022] Figure 4 This is a cross-sectional view of an air duct in a raw ore crushing device;

[0023] Figure 5 This is a schematic diagram of the anti-clogging mechanism in a raw ore crushing device.

[0024] In the diagram: 1. Crushing box; 2. Crushing mechanism; 3. Motor 1; 4. Crushing roller; 5. Screen box; 6. Discharge hole; 7. Screen plate; 8. Discharge pipe; 9. Air duct; 10. Fan; 11. Filter plate; 12. Recycling pipe; 13. Non-woven bag; 14. Anti-clogging mechanism; 15. Fixing plate; 16. Motor 2; 17. Turntable; 18. Rotating plate; 19. Slide bar; 20. Sliding block; 21. Fixing block; 22. Fixing rod; 23. Brush plate. Detailed Implementation

[0025] Please see Figures 1-3In this embodiment of the present invention, a raw ore crushing device includes a crushing box 1. A crushing mechanism 2 is provided on the left side surface and inside of the crushing box 1. The crushing mechanism 2 includes two motors 3, one in front and one behind. Both motors 3 are fixed to the left side surface of the crushing box 1. A crushing roller 4 is fixed to the output end of the motor 3. The crushing roller 4 is located inside the crushing box 1, and the right end of the crushing roller 4 is rotatably connected to the right side surface inside the crushing box 1. A screen box 5 connected to the lower end of the crushing box 1 is fixed to the screen box 5. A discharge hole 6 is opened on the left side surface of the screen box 5, and a screen plate 7 is fixed to the inside of the screen box 5. The left end of the screen plate 7 is inclined downward with an inclination angle of 30°-45°. A discharge pipe 8 connected to the screen box 5 is fixed to the lower surface of the screen box 5. An air duct 9 connected to the screen box 1 is fixed to the front surface of the crushing box 1 above the crushing mechanism 2. A fan 10 connected to the screen box 9 is fixed to the front end of the air duct 9.

[0026] The shredder 1 includes a box body and a box cover fixed to the upper end of the box body;

[0027] The upper end of the crushing box 1 is fixedly connected to a feed hopper that is connected to its interior. The feed hopper is used to feed raw ore into the crushing box 1.

[0028] The crushing roller 4 is rotatably connected to the crushing box 1 via a bearing;

[0029] Looking from left to right, the left motor 3 drives the crushing roller 4 to rotate clockwise, and the right motor 3 drives the crushing roller 4 to rotate counterclockwise, thereby crushing the raw ore; the roller teeth of the two crushing rollers 4 can achieve precise interlocking when rotating, forming a dynamic shearing surface, and the interlocking shearing of the teeth can generate concentrated shearing stress.

[0030] The left end of the sieve plate 7 is flush with the lower inner end of the discharge hole 6; the sieve plate 7 is attached to the four inner surfaces of the sieve box 5.

[0031] The sieve plate 7 is used to screen the crushed raw ore. The crushed ore slides to the left through the sieve plate 7 and is discharged through the discharge hole 6; the powder falls directly through the sieve plate 7 and is discharged through the discharge pipe 8.

[0032] The blower 10 is preferably a variable frequency motor, which can adjust its wind power. The blower 10 is used to draw air from the inside to the outside, and draw the dust generated during the crushing of the raw ore in the crushing box 1 into the air duct 9. The dust is blocked by the filter plate 11 to avoid damage to the blower 10. The blocked dust can fall off by its own weight and be discharged into the non-woven bag 13 through the recycling pipe 12 for recycling.

[0033] exist Figure 1 , Figure 3 and Figure 4In the middle: a filter plate 11 is fixedly connected inside the air duct 9, and a recovery pipe 12 connected to the inside of the filter plate 11 is fixedly connected to the lower surface of the air duct 9 behind the filter plate 11. A non-woven bag 13 is fixedly sleeved on the lower end of the recovery pipe 12.

[0034] exist Figure 1 , Figures 3-5 In the middle: The upper surface and the interior of the air duct 9 are jointly provided with an anti-clogging mechanism 14 located behind the filter plate 11. The anti-clogging mechanism 14 includes a fixed plate 15. The lower end of the fixed plate 15 is fixed to the upper surface of the air duct 9. The rear surface of the fixed plate 15 is fixed to a motor 16. The output end of the motor 16 is fixed to a turntable 17. The outer edge of the front surface of the turntable 17 is rotatably connected to a rotating plate 18. The upper end of the rear surface of the rotating plate 18 is rotatably connected to a sliding rod 19. The outer side of the sliding rod 19 is movably sleeved with a slider 20. The rear end of the slider 20 is fixed to the front surface of the fixed plate 15. The upper end of the sliding rod 19 is fixed to a fixed block 21. The front end of the lower surface of the fixed block 21 is fixed to a fixed rod 22. The fixed rod 22 movably penetrates the upper surface of the air duct 9. The lower end of the fixed rod 22 is fixed to a brush plate 23. The brush plate 23 movably fits against the rear surface of the filter plate 11.

[0035] Motor 16 is used to drive turntable 17 to rotate;

[0036] When the turntable 17 rotates, it can drive the slide bar 19 to move up and down repeatedly through the turntable 18, which in turn drives the brush plate 23 to move up and down repeatedly through the fixed rod 22, cleaning the surface of the filter plate 11 and preventing it from becoming clogged.

[0037] When the brush plate 23 is raised or lowered to the highest or lowest position, it will not touch the inner upper and lower surfaces of the air duct 9.

[0038] The brush plate 23 includes a plate body and brush bristles fixed to the front surface of the plate body, with the brush bristles adhering to the filter plate 11.

[0039] The working principle of this utility model is as follows: After the raw ore is fed into the crushing box 1 through the feed hopper, two motors 3 drive the crushing rollers 4 to rotate in opposite directions. The roller blades form a dynamic shearing surface to crush the ore. During the crushing process, the blower 10 draws air out from the air duct 9. When the dust is sucked into the air duct 9, it is intercepted by the filter plate 11. At the same time, the motor 16 of the anti-blocking mechanism 14 drives the brush plate 23 to move up and down through the linkage mechanism of the turntable 17 and the slide rod 19, continuously cleaning the surface of the filter plate 11. After the crushed material falls into the screen box 5, the powder directly penetrates the screen plate 7 and is discharged through the discharge pipe 8. The ore slides along the inclined screen plate 7 to the discharge hole 6 and is discharged. The dust intercepted by the filter plate 11 falls into the non-woven bag 13 through the recovery pipe 12 to complete the recovery, realizing the integrated operation of crushing, dust removal and screening.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 based on the specific circumstances.

Claims

1. A raw ore crushing device, comprising a crushing box (1), wherein a crushing mechanism (2) is provided on the left side surface and inside of the crushing box (1), and a screen box (5) connected to the lower end of the crushing box (1) is fixedly connected to the screen box (5), a discharge hole (6) is provided on the left side surface of the screen box (5), and a screen plate (7) is fixedly connected to the inside of the screen box (5), a discharge pipe (8) connected to the screen box (5) is fixedly connected to the lower surface of the screen box (5), and an air duct (9) connected to the air duct (9) is fixedly connected to the front surface of the crushing box (1) above the crushing mechanism (2), and a fan (10) connected to the air duct (9) is fixedly connected to the front end of the air duct (9). Its features are, The air duct (9) is fixedly connected to a filter plate (11), and a recovery pipe (12) connected to the interior of the filter plate (11) is fixedly connected to the lower surface of the air duct (9) behind the filter plate (11). A non-woven bag (13) is fixedly sleeved on the lower end of the recovery pipe (12). An anti-clogging mechanism (14) is provided on the upper surface and the interior of the air duct (9) behind the filter plate (11).

2. A raw ore crushing device according to claim 1, characterized in that, The crushing mechanism (2) includes two motors (3) at the front and rear, and a crushing roller (4) is fixedly connected to the output end of the motor (3).

3. A raw ore crushing device according to claim 1, characterized in that, The anti-blocking mechanism (14) includes a fixed plate (15), a motor (16) is fixedly connected to the rear surface of the fixed plate (15), a turntable (17) is fixedly connected to the output end of the motor (16), a rotating plate (18) is rotatably connected to the outer edge of the front surface of the turntable (17), a sliding rod (19) is rotatably connected to the upper end of the rear surface of the rotating plate (18), a slider (20) is movably sleeved on the outside of the sliding rod (19), and a fixed block (21) is fixedly connected to the upper end of the sliding rod (19). A fixed rod (22) is fixedly connected to the front end of the lower surface of the fixed block (21), and a brush plate (23) is fixedly connected to the lower end of the fixed rod (22).

4. The raw ore crushing device according to claim 1, characterized in that, The left end of the sieve plate (7) is inclined downward.

5. A raw ore crushing device according to claim 2, characterized in that, Both motors (3) are fixed to the left side surface of the crushing box (1), the crushing roller (4) is located inside the crushing box (1), and the right end of the crushing roller (4) is rotatably connected to the right side surface inside the crushing box (1).

6. A raw ore crushing device according to claim 3, characterized in that, The lower end of the fixed plate (15) is fixed to the upper surface of the air duct (9), the rear end of the slider (20) is fixed to the front surface of the fixed plate (15), the fixed rod (22) moves through the upper surface of the air duct (9), and the brush plate (23) moves against the rear surface of the filter plate (11).

Images