A coal mine exploitation crushing device with dust collection function

Abstract

The utility model relates to the technical field of coal mining, disclose a kind of coal mining with dust collection function is broken, including crushing box and anti-blocking component, the top of the crushing box is fixedly connected with hopper, and the bottom of the hopper is extended to the inside of the crushing box, the both sides of the crushing box are fixedly connected with dust collection box, the inside of the dust collection box is fixedly connected with stainless steel filter screen. The anti-blocking component includes the baffle that is rotatably connected in the crushing box by hinge, the same slide is slidably connected to the outside of two groups of slide rods, the slide and the baffle are symmetrically hinged with connecting rod one by hinge, two groups of knocking balls are symmetrically arranged on the side of the stainless steel filter screen, and the vertical rod and the horizontal rod on the same side are symmetrically hinged with connecting rod two by hinge. The utility model effectively avoids the problem that dust attached to dust filter screen is difficult to remove, so that it can cause the problem of filter hole blockage.

Description

Technical Field

[0001] This utility model relates to the field of coal mining technology, and in particular to a coal mining crushing device with dust collection function. Background Technology

[0002] Coal mining refers to the process of extracting coal from underground or open-pit mines using certain technical means. Its significance lies in ensuring energy supply, promoting economic development, and supporting industrial needs. Coal mining requires crushing of the coal, thus necessitating the use of specialized crushing equipment.

[0003] Chinese utility model patent CN214811325U discloses a coal mine crushing device with dust collection function. This device, through the cooperation of a fan, dust collection box, dust filter, dust outlet, and control panel, can collect dust, preventing it from dispersing into the air, thus avoiding air pollution and interference with normal work. Regarding the aforementioned technology, the inventors believe the following defects exist:

[0004] In actual use, the dust easily adheres to the dust filter screen after being filtered, and the device lacks an integrated structure to remove the adhered dust, causing dust to accumulate on the dust filter and clog the filter holes, thus affecting the normal collection of dust. Therefore, we provide a coal mine crushing device with dust collection function. Utility Model Content

[0005] To address the problem in the aforementioned background technology where the difficulty in removing dust adhering to the dust filter screen leads to filter pore blockage, this utility model provides a coal mine crushing device with dust collection function.

[0006] This utility model is achieved using the following technical solution: a coal mine crushing device with dust collection function, including a crushing box and an anti-clogging component. The top of the crushing box is fixedly connected to a hopper, and the bottom outlet of the hopper extends into the interior of the crushing box. Two sets of crushing rollers are rotatably connected inside the hopper. Dust collection boxes are fixedly connected to both sides of the crushing box. An exhaust fan is fixedly connected inside the air outlet of the dust collection box. Dust suction hoods are provided on both sides of the top of the inner cavity of the crushing box. A connecting pipe is fixedly connected between the dust suction hood and the dust collection box on the same side. A stainless steel filter screen is fixedly connected inside the dust collection box.

[0007] The anti-clogging component includes a baffle plate rotatably connected inside the crushing chamber via a hinge. Two sets of sliding rods are symmetrically fixed to the inner wall of the crushing chamber via connecting seats. The same sliding plate is slidably connected to the outside of the two sets of sliding rods. A spring is sleeved on the outside of the sliding rods. A connecting rod is symmetrically hinged between the sliding plate and the baffle plate via a hinge. Two sets of striking balls are symmetrically arranged on one side of the stainless steel filter screen. A horizontal bar is fixedly connected to the striking ball, and the end of the horizontal bar extends movably into the interior of the crushing chamber. Two sets of vertical rods are symmetrically arranged inside the crushing chamber. A connecting rod is symmetrically hinged between the vertical rod and the horizontal bar on the same side via a hinge. A connecting frame is fixedly connected between the vertical rod and the sliding plate.

[0008] As a further improvement to the above solution, the baffle is located directly below the discharge port at the bottom of the hopper.

[0009] As a further improvement to the above solution, the two ends of the spring are fixedly connected to the connecting seat and the sliding plate, respectively.

[0010] As a further improvement to the above solution, the striking ball is made of rubber and is in contact with the surface of the stainless steel filter screen on the same side.

[0011] As a further improvement to the above solution, an inclined guide block is fixedly connected to the bottom of the inner cavity of the crushing box.

[0012] As a further improvement to the above solution, the top of the hopper is hinged with a cover plate.

[0013] As a further improvement to the above scheme, one end of each of the two sets of crushing rollers is coaxially and fixedly connected with a gear, and the gears are meshed with each other. The outside of the crushing box is fixedly connected with a motor, and the end of the motor rotor is coaxially and fixedly connected to the other end of one side of the crushing roller through a connecting shaft.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model can block the falling coal during the crushing process by setting a baffle. Compared with the coal falling directly to the bottom of the crushing chamber, the falling height is shortened. Since the falling height of the coal can reduce the friction and impact between it and the air, the generation of dust can be reduced, which is highly practical.

[0016] 2. When the weight of the coal on the baffle exceeds the elastic force of the spring, this utility model utilizes the sliding engagement between the sliding plate and the sliding rod, the hinged engagement between the sliding plate and the baffle and the connecting rod one, and the rotational engagement between the baffle and the inner wall of the crushing box. This causes the baffle to automatically tilt downwards and push the sliding plate down. Simultaneously, the downward movement of the sliding plate also causes the vertical rod, which is fixedly connected to it via the connecting frame, to move down as well. The hinged engagement between the vertical rod and the horizontal rod and the connecting rod two allows the striking ball to move away from the stainless steel filter screen. After the coal on the baffle is emptied, the spring's own rebound action causes the baffle to automatically reset. At this time, the striking ball also automatically resets and impacts the stainless steel filter screen, causing it to vibrate and shake off the dust adhering to the stainless steel filter screen. This effectively avoids the problem of filter pore blockage caused by the difficulty in removing dust adhering to the filter screen, further improving the practicality of the device. Attached Figure Description

[0017] Figure 1 This is a longitudinal section three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional schematic diagram of the baffle connection structure of this utility model;

[0019] Figure 3 This is a longitudinal sectional three-dimensional structural diagram of the dust collection box of this utility model;

[0020] Figure 4 This is a three-dimensional cross-sectional view of the hopper structure of this utility model.

[0021] Explanation of key symbols:

[0022] 1. Crushing box; 2. Hopper; 3. Crushing roller; 4. Dust collection box; 5. Exhaust fan; 6. Dust hood; 7. Stainless steel filter screen; 8. Inclined guide block; 9. Gear; 101. Baffle; 102. Slide bar; 103. Slide plate; 104. Spring; 105. Connecting rod one; 106. Striking ball; 107. Horizontal bar; 108. Vertical bar; 109. Connecting rod two; 110. Connecting frame. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] Example 1:

[0025] Please combine Figure 1-4This embodiment of a coal mining crushing device with dust collection function includes a crushing box 1. The top of the crushing box 1 is fixedly connected to a hopper 2, and the bottom outlet of the hopper 2 extends into the interior of the crushing box 1. Two sets of crushing rollers 3 are rotatably connected inside the hopper 2. Dust collection boxes 4 are fixedly connected to both sides of the crushing box 1. An exhaust fan 5 is fixedly connected inside the air outlet of the dust collection box 4. Dust suction hoods 6 are provided on both sides of the top of the inner cavity of the crushing box 1. A connecting pipe is fixedly connected between the dust suction hood 6 and the dust collection box 4 on the same side. A stainless steel filter screen 7 is fixedly connected inside the dust collection box 4. A cover plate is hinged to the top of the hopper 2 to prevent dust from escaping to the outside during coal crushing. One end of each of the two sets of crushing rollers 3 is coaxially fixedly connected to a gear 9, and the gears 9 are meshed together. A motor is fixedly connected to the outside of the crushing box 1, and the rotor end of the motor is coaxially fixedly connected to the other end of one crushing roller 3 through a connecting shaft.

[0026] An anti-clogging component for preventing dust adhesion includes a baffle 101 rotatably connected inside the crushing chamber 1 via a hinge. Two sets of sliding rods 102 are symmetrically fixed to the inner wall of the crushing chamber 1 via connecting seats. The same sliding plate 103 is slidably connected to the outside of the two sets of sliding rods 102. Springs 104 are sleeved on the outside of the sliding rods 102, with both ends of the springs 104 fixedly connected to the connecting seats and the sliding plate 103 respectively. A connecting rod 105 is symmetrically hinged between the sliding plate 103 and the baffle 101 via a hinge. Two sets of striking balls 106, made of rubber, are symmetrically arranged on one side of the stainless steel filter screen 7. The ball 106 is in contact with the surface of the stainless steel filter screen 7 on the same side. A horizontal bar 107 is fixedly connected to the ball 106 and the end of the horizontal bar 107 extends into the interior of the crushing box 1. A sealing ring is added to the movable connection between the horizontal bar 107 and the dust collection box 4. Two sets of vertical bars 108 are symmetrically arranged inside the crushing box 1. The vertical bars 108 and the horizontal bars 107 on the same side are symmetrically hinged to the connecting rod 109 through a hinge. A connecting frame 110 is fixedly connected between the vertical bars 108 and the sliding plate 103. The baffle 101 is located directly below the bottom outlet of the hopper 2, so that the coal can fall accurately onto the surface of the baffle 101.

[0027] The implementation principle of a coal mine crushing device with dust collection function in this embodiment is as follows: First, the motor is started, and the meshing action between the two sets of gears 9 drives the two sets of crushing rollers 3 to rotate inward simultaneously. Then, the coal is placed in the hopper 2 and covered with a cover plate. The rotating crushing rollers 3 can crush the coal. The crushed coal will be discharged from the hopper 2 and fall onto the baffle 101. By starting the exhaust fan 5, the air inside the dust collection box 4 can be discharged to form a negative pressure, thereby allowing the dust generated during the crushing process to be sucked into the dust collection box 4 through the dust suction hood 6. In the process, the stainless steel filter screen 7 can retain dust in the dust collection box 4 for collection. The baffle 101 can block the falling coal during the crushing process, shortening the falling height of the coal compared to the coal falling directly to the bottom of the inner cavity of the crushing box 1. Since reducing the falling height of the coal can reduce the friction and impact between it and the air, it can reduce the generation of dust. When the weight of the coal on the baffle 101 is greater than the elastic force of the spring 104, the sliding cooperation between the slide plate 103 and the slide rod 102 is utilized to connect the slide plate 103 and the baffle 101 with the connecting rod 105. The hinged connection between the baffle 101 and the inner wall of the crushing box 1, along with the rotational connection between the baffle 101 and the inner wall of the crushing box 1, causes the baffle 101 to automatically tilt downwards and push the sliding plate 103 downwards. At this time, the coal will slide down the inclined surface of the baffle 101 to the bottom of the inner cavity of the crushing box 1. Simultaneously, the downward movement of the sliding plate 103 will also drive the vertical rod 108, which is fixedly connected to it via the connecting frame 110, to move downwards as well. Utilizing the hinged connection between the vertical rod 108 and the horizontal rod 107 and the connecting rod 109, the striking ball 106 can be moved away from the stainless steel filter screen 7. After the coal on the baffle 101 is emptied, the... The spring 104's own rebound action causes the baffle 101 to automatically reset. At this time, the striking ball 106 will also automatically reset and impact the stainless steel filter screen 7. Because the stainless steel filter screen 7 has strong elasticity, it will vibrate when impacted, thereby shaking off the dust attached to the stainless steel filter screen 7. This effectively avoids the problem of filter holes becoming clogged due to the difficulty in removing the dust attached to the dust filter screen. Finally, after crushing, the coal can be discharged from the crushing box 1. The dust collected inside the dust collection box 4 can be discharged by opening it.

[0028] Example 2:

[0029] Based on Example 1, this embodiment is further improved in that: an inclined guide block 8 is fixedly connected to the bottom of the inner cavity of the crushing box 1 to facilitate the automatic discharge of coal.

[0030] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A coal mine crushing device with dust collection function, characterized in that, include: A crushing box (1) is provided. The top of the crushing box (1) is fixedly connected to a hopper (2) and the bottom outlet of the hopper (2) extends into the interior of the crushing box (1). Two sets of crushing rollers (3) are rotatably connected inside the hopper (2). Dust collection boxes (4) are fixedly connected to both sides of the crushing box (1). An exhaust fan (5) is fixedly connected inside the air outlet of the dust collection box (4). Dust suction hoods (6) are provided on both sides of the top of the inner cavity of the crushing box (1). A connecting pipe is fixedly connected between the dust suction hood (6) and the dust collection box (4) on the same side. A stainless steel filter screen (7) is fixedly connected inside the dust collection box (4). The anti-clogging component includes a baffle (101) rotatably connected to the inside of the crushing box (1) via a hinge. Two sets of sliding rods (102) are symmetrically fixed to the inner wall of the crushing box (1) via connecting seats. The two sets of sliding rods (102) are slidably connected to the same sliding plate (103). A spring (104) is sleeved on the outside of each sliding rod (102). A connecting rod (105) is symmetrically hinged between the sliding plate (103) and the baffle (101) via a hinge. The stainless steel filter screen... Two sets of striking balls (106) are symmetrically arranged on one side of (7). A crossbar (107) is fixedly connected to the striking ball (106), and the end of the crossbar (107) extends movably into the interior of the crushing box (1). Two sets of vertical bars (108) are symmetrically arranged inside the crushing box (1). A connecting rod (109) is symmetrically hinged between the vertical bar (108) and the crossbar (107) on the same side through a hinge. A connecting frame (110) is fixedly connected between the vertical bar (108) and the slide plate (103).

2. A coal mine crushing device with dust collection function as described in claim 1, characterized in that, The baffle (101) is located directly below the bottom outlet of the hopper (2).

3. A coal mine crushing device with dust collection function as described in claim 1, characterized in that, The two ends of the spring (104) are fixedly connected to the connecting seat and the sliding plate (103), respectively.

4. A coal mine crushing device with dust collection function as described in claim 1, characterized in that, The striking ball (106) is made of rubber and is in contact with the surface of the stainless steel filter screen (7) on the same side.

5. A coal mine crushing device with dust collection function as described in claim 1, characterized in that, An inclined guide block (8) is fixedly connected to the bottom of the inner cavity of the crushing box (1).

6. A coal mine crushing device with dust collection function as described in claim 1, characterized in that, The top of the hopper (2) is hinged with a cover plate.

7. A coal mine crushing device with dust collection function as described in claim 1, characterized in that, One end of each of the two sets of crushing rollers (3) is coaxially fixedly connected to a gear (9) and the gears (9) mesh with each other. The outside of the crushing box (1) is fixedly connected to a motor and the end of the motor rotor is coaxially fixedly connected to the other end of one side of the crushing roller (3) through a connecting shaft.

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