A dust removal device for a crusher
By using an adjustable-height dust hood in the dust removal device of the crusher, the problem of incomplete dust capture caused by a fixed height of the dust hood is solved, achieving more efficient dust capture and energy saving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBI JINGZHONG TECH CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-26
AI Technical Summary
The existing dust collection device for crushers has a fixed dust hood height, which cannot adapt to changes in different materials or feed rates, resulting in incomplete dust capture. This necessitates increasing the fan power to compensate for the incomplete dust capture, thus increasing energy consumption.
Design a dust removal device with a flexible and automatic height adjustment of the dust hood. The dust hood on the lifting frame is adjusted in real time by a motor-driven lead screw to ensure the best dust removal effect.
It enables real-time adjustment of the distance between the dust collection hood and the crusher feed inlet, improving dust capture efficiency, reducing energy consumption, and adapting to the diverse material crushing production needs.
Smart Images

Figure CN224272528U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of crusher technology, and specifically relates to a dust removal device for a crusher. Background Technology
[0002] The dust removal device of a crusher is a system specifically designed to reduce dust generated during crushing operations, protecting the environment and worker health. It typically includes key components such as a dust hood, piping system, fan, dust collector, ash hopper, and ash discharge device. The dust hood is installed at the crusher's feed inlet and discharge outlet, where dust is easily generated. The negative pressure provided by the fan draws dust-laden air into the piping system and directs it to the dust collector for purification. The purified air is then discharged, while the collected dust falls into the ash hopper.
[0003] Existing dust removal devices for crushers work by placing a dust collection hood above the crusher's feed inlet and then activating a fan-driven dust collection mechanism to suck up and collect the dust generated during crusher operation. However, the fixed height of the dust collection hood cannot adapt to changes in different materials or feed rates, resulting in dust not being effectively captured in some situations. For example, if the dust collection hood is too far from the feed inlet, the generated dust will exceed the effective range of the hood. To compensate for the efficiency loss caused by the poor position of the dust collection hood, it is often necessary to increase the power of the fan to provide greater suction to ensure sufficient dust collection, which leads to increased energy consumption. Furthermore, different types of crushed materials require different dust collection hood heights, and a fixed height is difficult to meet the diverse material crushing production needs. Utility Model Content
[0004] In view of this, this utility model addresses the shortcomings of the prior art by providing a dust removal device for a crusher. The height of the dust suction hood can be flexibly and automatically adjusted, and the distance between the dust suction hood and the crusher feed inlet can be adjusted in real time to keep it in the optimal dust suction position, thereby more effectively capturing the dust generated by the crushed material and meeting the diverse material crushing production needs.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a dust removal device for a crusher, including a mounting plate, an mounting frame provided at the upper end of the mounting plate, the mounting plate and the mounting frame being fixed together by welding, a cavity frame provided at the upper end of the mounting frame, a cavity frame welded and fixed at the upper end of the cavity plate, a lifting frame slidably arranged inside the cavity frame, a dust suction hood provided at the front side of the lifting frame, a screw threadedly connected to the lifting frame being rotatably arranged inside the cavity frame, a drive unit for driving the screw to rotate being arranged inside the mounting frame, the drive unit including a motor arranged inside the mounting frame, the output shaft of the motor being connected to the lower end of the screw through a coupling.
[0006] As a further improvement of this utility model, a control panel is provided at the upper end of the mounting plate, and the motor and fan are electrically connected to the control panel.
[0007] As a further improvement of this utility model, a dust collection box is provided on the rear side of the mounting plate. Multiple exhaust slots are opened at the lower end of the dust collection box. A fan is provided on the bottom wall of the dust collection box. A filter collection box is slidably arranged inside the dust collection box. The filter collection box and the dust collection hood are connected by a telescopic square tube. A limiting locking component for limiting and locking the filter collection box is provided on the rear side of the dust collection box. The limiting locking component includes two spring pieces that are rotatably arranged on the rear side of the dust collection box by a rotating column. The two spring pieces are installed in conjunction with a filter collection box.
[0008] As a further improvement of this utility model, the mounting plate has multiple mounting holes inside.
[0009] As a further improvement of this utility model, two reinforcing ribs are welded and fixed between the mounting plate and the cavity frame, and the left and right positions of the two reinforcing ribs correspond to each other.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] Firstly, the motor can be turned on via the control panel, causing the dust hood on the lifting frame to move up and down under the constraint of the cavity frame. This allows for real-time adjustment of the distance between the dust hood and the crusher's feed inlet, ensuring that the hood is always in the optimal dust-collecting position. This effectively captures the dust generated by the crushed materials, thus meeting the diverse material crushing production needs.
[0012] Secondly, the triangular stability formed between the two reinforcing ribs and the mounting plate increases the stability of the cavity frame, further enhancing the stability of the dust removal device when collecting dust from the crusher. Attached Figure Description
[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the rear cross-sectional structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the right-side cross-sectional structure of the present invention;
[0017] Figure 4 This is an enlarged structural diagram of point A of this utility model.
[0018] In the diagram: 101, mounting plate; 102, mounting hole; 103, mounting frame; 104, dust collection box; 105, connecting telescopic square tube; 106, dust collection hood; 107, reinforcing rib; 108, control panel; 109, spring; 110, fan; 111, filter collection box; 112, lifting frame; 113, cavity frame; 201, motor; 202, lead screw. Detailed Implementation
[0019] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.
[0020] like Figure 1 , 2 As shown in Figures 3 and 4, a dust removal device for a crusher includes a mounting plate 101. A mounting frame 103 is provided at the upper end of the mounting plate 101. A cavity frame 113 is provided at the upper end of the mounting frame 103. The cavity frame 113 is welded and fixed to the upper end of the cavity plate. A lifting frame 112 is slidably arranged inside the cavity frame 113. A dust suction hood 106 is provided on the front side of the lifting frame 112. A lead screw 202 that is threadedly connected to the lifting frame 112 is rotatably arranged inside the cavity frame 113. A drive unit for driving the lead screw 202 to rotate is arranged inside the mounting frame 103. The drive unit includes a motor 201 arranged inside the mounting frame 103. The output shaft of the motor 201 is connected to the lower end of the lead screw 202 through a coupling. A plurality of mounting holes 102 are opened inside the mounting plate 101, and the plurality of mounting holes 102 are respectively located at the four corners of the mounting plate 101.
[0021] A dust collection box 104 is provided on the rear side of the mounting plate 101. Multiple exhaust slots are provided at the lower end of the interior of the dust collection box 104. A fan 110 is provided on the bottom wall of the dust collection box 104. A filter collection box 111 is slidably arranged inside the dust collection box 104. The filter collection box 111 and the dust collection hood 106 are connected by a telescopic square tube 105. A limiting locking assembly for limiting and locking the filter collection box 111 is provided on the rear side of the dust collection box 104. The limiting locking assembly includes two spring pieces 109 that are rotatably arranged on the rear side of the dust collection box 104 via a rotating column. The left and right positions of the two spring pieces 109 are corresponding. The two spring pieces 109 are installed in conjunction with one filter collection box 111.
[0022] First, the dust removal device is fixed to the upper end of the crusher feed inlet by inserting bolts through the mounting holes 102 on the mounting plate 101, so that the dust suction hood 106 corresponds to the upper end of the crusher feed inlet. Then, the fan 110 is turned on by controlling the control panel 108. The impeller rotates and sucks the dust generated at the crusher feed inlet into the interior of the processing box through the connecting telescopic square tube 105. The dust is then intercepted by the filter collection box 111, and the purified dust is discharged through the exhaust port, thereby realizing the dust collection and removal during the crushing operation of the crusher.
[0023] When it is necessary to adjust the height of the dust hood 106, the motor 201 is turned on by controlling the control panel 108. The output shaft drives the lead screw 202 to rotate, so that the dust hood 106 on the lifting frame 112 moves up and down under the restriction of the cavity frame 113, thereby realizing the adjustment of the distance between the dust hood 106 and the feed inlet of the crusher.
[0024] When it is necessary to process the dust inside the filter collection box 111, pull and rotate the springs 109 on both sides to make them leave the surface of the filter collection box 111, and then the filter collection box 111 can be pulled out to process the dust inside.
[0025] According to another embodiment of the present invention, such as Figure 1 , 2 As shown, two reinforcing ribs 107 are welded and fixed between the mounting plate 101 and the cavity frame 113. The two reinforcing ribs 107 increase the stability of the cavity frame 113 and further increase the stability of the dust removal device operation.
[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.
Claims
1. A dust removal device for a crusher, comprising a mounting plate (101), characterized in that: The mounting plate (101) has a mounting frame (103) at its upper end, and a cavity frame (113) at its upper end. The cavity frame (113) is welded and fixed to the upper end of the cavity plate. A lifting frame (112) is slidably arranged inside the cavity frame (113). A dust suction hood (106) is arranged on the front side of the lifting frame (112). A screw rod (202) threadedly connected to the lifting frame (112) is rotatably arranged inside the cavity frame (113). A drive unit for driving the screw rod (202) to rotate is arranged inside the mounting frame (103). The drive unit includes a motor arranged inside the mounting frame (103). 201), the output shaft of the motor (201) is connected to the lower end of the lead screw (202) through a coupling. A dust collection box (104) is provided on the rear side of the mounting plate (101). Multiple exhaust slots are provided at the lower end of the interior of the dust collection box (104). A fan (110) is provided on the bottom wall of the dust collection box (104). A filter collection box (111) is slidably arranged inside the dust collection box (104). The filter collection box (111) and the dust collection hood (106) are connected by a telescopic square tube (105). A limit locking component for limiting and locking the filter collection box (111) is provided on the rear side of the dust collection box (104).
2. The dust removal device for a crusher as described in claim 1, characterized in that: The limiting locking assembly includes two springs (109) that are rotatably disposed on the rear side of the dust collection box (104) via a rotating column. The two springs (109) are installed in conjunction with a filter collection box (111).
3. The dust removal device for a crusher as described in claim 1, characterized in that: Two reinforcing ribs (107) are welded and fixed between the mounting plate (101) and the cavity frame (113).
4. The dust removal device for a crusher as described in claim 1, characterized in that: The mounting plate (101) has multiple mounting holes (102) inside.
5. The dust removal device for a crusher as described in claim 1, characterized in that: The upper end of the mounting plate (101) is provided with a control panel (108), and the motor (201) and the fan (110) are electrically connected to the control panel (108).