Efficient impact crusher for ore material

Abstract

This invention relates to a high-efficiency impact crusher for ore materials, comprising a crusher housing with a drive assembly, a reinforced crushing panel connected to the drive assembly inside the crusher housing for impact crushing of ore materials, and a support assembly located above the reinforced crushing panel outside the crusher housing. A dust extraction pipe for extracting dust generated during the crushing process is located in the middle of the support assembly. Through the negative pressure inside the dust extraction pipe, dust generated during ore crushing can be comprehensively extracted, effectively reducing dust overflow. Simultaneously, a rigid mesh surface performs preliminary filtration of the dust, intercepting large particles of debris, followed by further filtration through needle-punched industrial non-woven fabric, achieving efficient adsorption of fine dust. This forms a dual filtration structure combining coarse and fine filtration, significantly improving dust removal efficiency, thereby improving the working environment and reducing the impact of dust pollution on operators and the surrounding environment.

Description

Technical Field

[0001] This invention relates to the field of crushing equipment, specifically a high-efficiency impact crusher for ore materials. Background Technology

[0002] In the field of ore processing, impact crushers are commonly used crushing equipment. They crush ore materials through the impact and compression of internal crushing components and are widely used in mining, construction, and other industries. However, the crushing process generates a large amount of dust, which not only permeates the working environment but also harms the health of operators and pollutes the surrounding environment, failing to meet environmental protection requirements. Existing impact crushers are usually equipped with simple dust removal devices to improve processing efficiency.

[0003] For example, a municipal stone crusher with publication number CN219442009U includes a crushing device and a filtering device. The filtering device is fixedly connected to the bottom outer surface of the crushing device. A protective shell is fixedly installed inside the crushing device. A discharge hopper is welded to the center of the bottom surface of the protective shell. Connection holes are provided on both outer surfaces of the discharge hopper. A drive motor is fixedly installed on the middle outer surface of the protective shell. A transmission sprocket is fixedly connected to the outer surface of one end of the drive motor. A transmission chain is meshed with the outer surface of the transmission sprocket. This utility model mainly solves the problem that the combined operation of the crushing device and the filtering device can facilitate the treatment of dust generated at the stone inlet and outlet of the crushing device, thereby avoiding dust overflow and environmental pollution, and effectively performing dust-free crushing processing of stone.

[0004] While the above solutions can facilitate the handling of dust generated at the stone inlet and outlet of the crushing device, most existing dust removal structures for impact crushers only use a single filtration method, relying solely on a mesh surface for coarse filtration. This fails to effectively adsorb fine dust, resulting in a large amount of fine dust overflowing. Furthermore, the dust collection structure of existing dust removal devices does not comprehensively extract dust, and the negative pressure is not fully utilized, making it difficult to achieve efficient dust collection and further exacerbating the dust overflow problem. Summary of the Invention

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A high-efficiency impact crusher for ore materials includes a crusher housing with a drive assembly installed. A reinforced crushing panel connected to the drive assembly is installed inside the crusher housing for impact crushing of ore materials. A support assembly is provided outside the crusher housing above the reinforced crushing panel. A dust suction pipe for extracting dust generated during the crushing process is provided in the middle of the support assembly. Strip-shaped frame blocks are symmetrically fixedly connected to the inner side wall of the support assembly. A pair of electric push rods are respectively installed above the two strip-shaped frame blocks at their close ends. Two rigid mesh surfaces arranged vertically and horizontally opposite each other are provided at the two strip-shaped frame blocks at their close ends for supporting industrial non-woven fabric and intercepting large ore fragments. The dust suction pipe is located above the two rigid mesh surfaces. The upper rigid mesh surface is connected to the output ends of the two pairs of electric push rods arranged in a rectangular pattern. The lower rigid mesh surface is fixedly connected to the bottom side of the strip-shaped frame block. The invention also includes an adsorption layer assembly. The adsorption layer assembly includes an unwinding horizontal shaft and a winding horizontal shaft respectively assembled in two strip frames. Industrial non-woven fabric is wound between the unwinding horizontal shaft and the winding horizontal shaft to filter fine dust generated during the crushing process. The industrial non-woven fabric passes through the space between two rigid mesh surfaces. A motor is connected to the winding horizontal shaft.

[0006] Preferably, the two strip-shaped frames are provided with strip-shaped channels for industrial non-woven fabric to enter and exit at their respective ends, and a self-fitting baffle is provided in the strip-shaped channel located at the unwinding horizontal axis to seal the strip-shaped channel and prevent dust from entering from the channel gaps.

[0007] Preferably, the self-fitting baffle includes a fixed strip plate that is fixedly connected to the upper and lower inner walls of the strip channel respectively. Two sets of symmetrically arranged side opening slots are opened on one side of the vertical surface of the fixed strip plate. A spring is fixedly connected to the lower inner wall of the side opening slot. The free ends of the two springs are elastically connected to a follower inner slide plate. The follower inner slide plate is slidably connected to the two side opening slots.

[0008] Preferably, flexible abutment strips are fixedly connected to the ends of the two vertically corresponding follower inner slides that are close to each other, and the industrial non-woven fabric passes through the position between the two flexible abutment strips.

[0009] Preferably, the flexible abutment strip is made of nitrile rubber and has an arc-shaped cross-section.

[0010] Preferably, the rigid mesh is made of stainless steel with square mesh openings and protrusions on the edges of the rigid mesh. The protrusions are connected to the strip frame block and the electric push rod by bolts.

[0011] Preferably, both the unwinding horizontal shaft and the rewinding horizontal shaft are made of seamless steel pipes, with the same outer diameter, and are rotatably connected to the inner wall of the strip frame block through rolling bearings, in order to reduce the frictional force when the unwinding horizontal shaft and the rewinding horizontal shaft rotate.

[0012] Preferably, the drive assembly includes a drive motor and a gearbox, the drive motor and the gearbox are coaxially connected by a coupling, and the output end of the gearbox is connected to the reinforced crushing panel by a flat key.

[0013] Preferably, the industrial nonwoven fabric is a needle-punched dust-removing nonwoven fabric, and its width is consistent with the area between the two rigid mesh surfaces.

[0014] Preferably, the end of the suction pipe near the rigid mesh surface has a flared structure, and the flared structure is trumpet-shaped.

[0015] The beneficial effects of this invention are as follows: the negative pressure inside the dust extraction pipe can comprehensively extract the dust generated during the ore crushing process, effectively reducing dust overflow. At the same time, the rigid mesh surface is used for preliminary filtration of dust, intercepting large particles of debris. Then, needle-punched industrial non-woven fabric is used for further filtration, achieving efficient adsorption of fine dust. This forms a dual filtration structure that combines coarse and fine filtration, significantly improving the dust removal effect, thereby improving the working environment and reducing the impact of dust pollution on operators and the surrounding environment.

[0016] When the industrial nonwoven fabric absorbs dust to its filtration limit, the motor drives the winding and unwinding horizontal shafts to rotate synchronously, automatically completing the replacement of the industrial nonwoven fabric. This eliminates the need to stop and disassemble the equipment, significantly improving the convenience of equipment maintenance, effectively reducing downtime, ensuring continuous and stable crushing and dust removal operations, and improving overall operational efficiency.

[0017] The self-adaptive baffles within the strip channel, supported by springs, cause the flexible abutment strips to tightly adhere to the surface of the industrial nonwoven fabric. This effectively enhances the sealing effect between the strip channel and the industrial nonwoven fabric, preventing unfiltered dust from leaking through the channel gaps and preventing contamination of unused industrial nonwoven fabric on the unwinding horizontal shaft. This ensures the stability of the filtration operation while reducing equipment maintenance costs and various adverse effects caused by dust pollution. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the crusher housing of the present invention; Figure 2 This is a schematic diagram of the rigid mesh structure of the present invention; Figure 3 This is a schematic diagram of the internal cross-sectional structure of the strip-shaped frame block of the present invention; Figure 4 For the present invention Figure 3A schematic diagram of a partially truncated and enlarged section of the central strip-shaped frame; Figure 5 This is a schematic diagram of the industrial nonwoven fabric of the present invention positioned between two rigid mesh surfaces. Figure 6 This is a schematic diagram of the side cross-sectional structure of the strip channel of the present invention.

[0019] In the diagram: 1. Crusher housing; 2. Drive assembly; 3. Reinforced crushing panel; 4. Support assembly; 5. Dust suction pipe; 6. Strip frame block; 7. Electric push rod; 8. Rigid mesh surface; 9. Adsorption layer assembly; 900. Unwinding horizontal shaft; 901. Rewinding horizontal shaft; 902. Industrial non-woven fabric; 903. Motor; 904. Strip channel; 10. Self-fitting baffle; 1000. Fixing strip; 1001. Side opening slot; 1002. Spring; 1003. Follow-up inner sliding plate; 1004. Flexible abutment bar. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0022] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use the invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the invention can be made without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the invention with unnecessary detail. Therefore, the invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application. Example

[0023] A high-efficiency impact crusher for ore materials includes a crusher housing 1 with a drive assembly 2 installed inside. A reinforced crushing panel 3 connected to the drive assembly 2 is installed inside the crusher housing 1 for impact crushing of ore materials. A support assembly 4 is located outside the crusher housing 1 above the reinforced crushing panel 3. A dust extraction pipe 5 for extracting dust generated during the crushing process is located in the middle of the support assembly 4. Strip-shaped frame blocks 6 are symmetrically fixed to the inner sidewalls of the support assembly 4. A pair of electric push rods 7 are respectively installed above the two strip-shaped frame blocks 6 at their adjacent ends. Two parallel and opposite rigid mesh surfaces 8 are provided at the two adjacent ends of the strip-shaped frame blocks 6 to support industrial non-woven fabric. The material 902 intercepts large particles of ore and slag. The dust collection pipe 5 is located above the two rigid mesh surfaces 8. The upper rigid mesh surface 8 is connected to the output ends of two pairs of electric push rods 7 arranged in a rectangle. The lower rigid mesh surface 8 is fixedly connected to the bottom side of the strip frame block 6. It also includes an adsorption layer assembly 9, which includes an unwinding horizontal shaft 900 and a winding horizontal shaft 901 respectively assembled in the two strip frame blocks 6. Industrial non-woven fabric 902 is wound between the unwinding horizontal shaft 900 and the winding horizontal shaft 901 to filter fine dust generated during the crushing process. The industrial non-woven fabric 902 passes through the space between the two rigid mesh surfaces 8. A motor 903 is connected to the winding horizontal shaft 901.

[0024] Among them, motor 903 is a DC geared motor with a built-in Hall encoder, which can realize precise speed control and position control. The output end of motor 903 is coaxially connected to the take-up horizontal shaft 901 through a coupling. When the industrial non-woven fabric 902 is saturated and needs to be replaced, motor 903 drives the take-up horizontal shaft 901 to rotate at a preset speed, so that the industrial non-woven fabric 902 moves from the unwind horizontal shaft 900 to the take-up horizontal shaft 901 at a uniform linear speed. Electric push rod 7 and motor 903 are both centrally controlled by a programmable logic controller.

[0025] Two strip-shaped frame blocks 6 have strip-shaped channels 904 at their close ends for the entry and exit of industrial non-woven fabric 902. A self-locking baffle 10 is installed inside the strip-shaped channel 904 located at the unwinding horizontal axis 900 to seal the channel 904 and prevent dust from entering through the channel gaps. The self-locking baffle 10 includes fixed strips 1000 fixedly connected to the upper and lower inner walls of the strip-shaped channel 904. Two sets of symmetrically arranged side opening slots 1001 are opened on one side of the vertical surface of the fixed strips 1000. A spring 1002 is fixedly connected to the lower inner wall of the slot 1001. The free ends of the two springs 1002 are elastically connected to the follower inner slide plate 1003. The follower inner slide plate 1003 is slidably connected to the two side opening slots 1001. The two vertically corresponding follower inner slide plates 1003 are respectively fixedly connected to flexible abutment strips 1004 at their close ends. Industrial non-woven fabric 902 passes through the position between the two flexible abutment strips 1004. The flexible abutment strip 1004 is made of nitrile rubber and has an arc-shaped cross-section.

[0026] Nitrile rubber has excellent wear resistance, oil resistance and heat resistance, and can maintain long-term elasticity and sealing performance in the mining crushing working environment. The arc-shaped cross-section design allows the flexible strip 1004 to form line contact with the surface of the industrial non-woven fabric 902, which reduces the frictional resistance when the industrial non-woven fabric 902 moves while ensuring the sealing effect.

[0027] The rigid mesh 8 is made of stainless steel with square mesh openings. The edges of the rigid mesh 8 are provided with protrusions, which are connected to the strip frame block 6 and the electric push rod 7 by bolts. The unwinding horizontal shaft 900 and the winding horizontal shaft 901 are both made of seamless steel pipes with the same outer diameter. They are rotatably connected to the inner wall of the strip frame block 6 through rolling bearings to reduce the friction when the unwinding horizontal shaft 900 and the winding horizontal shaft 901 rotate. The drive assembly 2 includes a drive motor and a gearbox. The drive motor and the gearbox are coaxially connected by a coupling, and the output end of the gearbox is connected to the reinforced crushing panel 3 by a flat key. The industrial non-woven fabric 902 is a needle-punched dust removal non-woven fabric with a width consistent with the area between the two rigid mesh surfaces 8. The end of the dust collection pipe 5 near the rigid mesh surface 8 has a flared structure, and the flared structure is trumpet-shaped.

[0028] Among them, the rigid mesh surface 8 is made of 304 stainless steel with square mesh structure. The square mesh has a high opening rate and is not prone to stress concentration. It can provide good airflow while ensuring structural strength. The horn-shaped design significantly increases the air intake area of ​​the dust collection pipe 5, which can guide the dust-laden airflow evenly to the entire surface of the industrial non-woven fabric 902 at a low flow rate, avoiding local damage or reduced filtration efficiency of the industrial non-woven fabric 902 due to excessive local wind speed.

[0029] The working principle of this scheme is as follows: First, the drive assembly 2 is started. After the drive motor is powered on, it begins to run. The output end of the drive motor is connected to the input end of the reduction gearbox via a coupling. The coupling rotates synchronously with the drive motor, thereby driving the gears inside the reduction gearbox. After the reduction gearbox adjusts the speed of the drive motor, it is connected to the reinforced crushing panel 3 via a key at the output end. The key transmits power to drive the reinforced crushing panel 3 to reciprocate inside the crusher housing 1. The ore material enters the inner cavity of the crusher housing 1 through the feed inlet and falls between the reinforced crushing panel 3 and the fixed plate. The reinforced crushing panel 3 continuously pushes the ore material, making... The ore material is squeezed between the reinforced crushing panel 3 and the fixed plate. The resulting extrusion force acts on the ore material, achieving impact crushing. During the crushing process, the ore material collides and rubs against each other, generating a large amount of dust. This dust is dispersed upward with the airflow generated during the crushing process. At this time, the dust suction pipe 5 in the middle of the support assembly 4 is started simultaneously. The end of the dust suction pipe 5 near the rigid mesh surface 8 is set with a funnel-shaped flared structure. This flared structure expands the dust suction range of the dust suction pipe 5, so that the dispersed dust can be more comprehensively sucked into the dust suction pipe 5. The dust suction pipe 5 draws the dispersed dust into the pipe through internal negative pressure. During the dust extraction process by the dust collection pipe 5, the dust first passes through two parallel and opposite rigid mesh surfaces 8. When the spacing of the rigid mesh surfaces 8 needs to be adjusted, the electric push rod 7 is activated and extends, causing the upper rigid mesh surface 8 to move up and down, thereby adjusting the distance between the two rigid mesh surfaces 8. This ensures effective interception of large ore fragments generated during the crushing process. The large fragments intercepted by the rigid mesh surfaces 8 fall back into the inner cavity of the crusher housing 1 due to their own gravity, and continue to be crushed by the reinforced crushing panel 3 and the fixed... The plate is squeezed and impacted to complete the secondary crushing. The fine dust that has been intercepted by the rigid mesh 8 continues to move upward with the airflow and simultaneously passes through the industrial non-woven fabric 902 between the two rigid meshes 8. The industrial non-woven fabric 902 is a needle-punched dust removal non-woven fabric. Its width is consistent with the area between the two rigid meshes 8, which can fully cover the filtration area between the two rigid meshes 8. When the fine dust passes through the industrial non-woven fabric 902, it is adsorbed by the fiber structure of the industrial non-woven fabric 902, thus achieving the filtration of fine dust. As the filtration process continues, the dust adsorbed on the surface of the industrial nonwoven fabric 902 increases. When the industrial nonwoven fabric 902 reaches its filtration limit and the filtration effect decreases, the electric push rod 7 adjusts the distance between the two rigid mesh surfaces 8, and the motor 903 connected to the winding horizontal shaft 901 is started. The motor 903 outputs power to drive the winding horizontal shaft 901 to rotate slowly. During the rotation of the winding horizontal shaft 901, the industrial nonwoven fabric 902 with adsorbed dust on its surface is gradually wound onto the winding horizontal shaft 901. At the same time, the unwinding horizontal shaft 900, which is set opposite to the winding horizontal shaft 901, rotates synchronously, slowly releasing the unused industrial nonwoven fabric 902 wound on the unwinding horizontal shaft 902, so that the unused industrial nonwoven fabric 902 moves between the two rigid mesh surfaces 8, replacing a new filtration area and ensuring that the filtration operation continues. During the winding and unwinding process, the industrial nonwoven fabric 902 smoothly enters and exits through a strip channel 904 formed by two strip-shaped frame blocks 6 positioned close to each other at one end. The dimensions of the strip channel 904 are adapted to the width of the industrial nonwoven fabric 902 to ensure that the industrial nonwoven fabric 902 does not shift during movement. During the process of the industrial nonwoven fabric 902 entering and exiting the strip channel 904, the self-locking baffle 10 set inside the strip channel 904 plays a sealing role. The fixing strip 1000 in the self-locking baffle 10 is fixed to the upper and lower inner walls of the strip channel 904 by bolts. Two sets of symmetrically arranged side opening slots 1001 are opened on one side of the vertical surface of the fixing strip 1000. The inside of the side opening slot 1001 accommodates a spring 1002. One end of the spring 1002 is fixed to the lower inner wall of the side opening slot 1001, and the other end is connected to the follow-up inner slide plate. The 1003 connection provides elastic support for the follower inner slide plate 1003. The follower inner slide plate 1003 is embedded in two symmetrically arranged side opening slots 1001, allowing it to slide flexibly within the side opening slots 1001. When the follower inner slide plate 1003 slides, it drives the vertically corresponding flexible abutment strip 1004 to move synchronously, so that the flexible abutment strip 1004 is tightly attached to the surface of the industrial non-woven fabric 902. The flexible abutment strip 1004 is made of nitrile rubber and has an arc-shaped cross-section. The arc-shaped structure can better fit the surface of the industrial non-woven fabric 902, effectively enhancing the sealing effect between the strip channel 904 and the industrial non-woven fabric 902, preventing unfiltered fine dust from leaking from the gaps in the strip channel 904 and contaminating the unused industrial non-woven fabric 902 on the unwinding horizontal shaft 900, thus ensuring the stability of the filtration operation.

[0030] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0031] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0032] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A high efficiency impact crusher for mineral material, comprising a crusher housing (1) provided with a drive assembly (2), inside which a reinforced breaker panel (3) is fitted in connection with the drive assembly (2) for impact breaking of the mineral material, characterized in that The crusher housing (1) is provided with a support assembly (4) located above the reinforced crushing panel (3). The support assembly (4) is provided with a dust suction pipe (5) for extracting dust generated during the crushing process. The inner sidewall of the support assembly (4) is symmetrically fixedly connected with strip-shaped frame blocks (6). A pair of electric push rods (7) are respectively mounted on the upper side of the two strip-shaped frame blocks (6) that are close to each other. Two rigid mesh surfaces (8) are provided on the upper side of the two strip-shaped frame blocks (6) that are close to each other, which are used to support the industrial non-woven fabric (902) and intercept large particles of ore slag. The dust suction pipe (5) is located above the two rigid mesh surfaces (8). The upper rigid mesh surface (8) and the output ends of the two pairs of electric push rods (7) that are distributed in a rectangle are connected to each other. The lower rigid mesh surface (8) and the bottom side of the strip-shaped frame block (6) are fixedly connected. The assembly also includes an adsorption layer component (9). The adsorption layer assembly (9) includes an unwinding horizontal shaft (900) and a winding horizontal shaft (901) respectively assembled in two strip-shaped frames (6). An industrial non-woven fabric (902) is wound between the unwinding horizontal shaft (900) and the winding horizontal shaft (901) to filter fine dust generated during the crushing process. The industrial non-woven fabric (902) passes through the position between two rigid mesh surfaces (8). A motor (903) is connected to the winding horizontal shaft (901).

2. The high efficiency impact crusher for ore material according to claim 1, characterized in that, The two strip-shaped frame blocks (6) are respectively provided with strip-shaped channels (904) for industrial non-woven fabric (902) to enter and exit at their respective ends. A self-fitting baffle (10) is provided in the strip-shaped channel (904) located at the unwinding horizontal axis (900) to seal the strip-shaped channel (904) and prevent dust from entering from the channel gaps.

3. The high efficiency impact crusher for ore material according to claim 2, characterized in that, The self-fitting baffle (10) includes a fixed strip (1000) fixedly connected to the upper and lower inner walls of the strip channel (904). Two sets of symmetrically arranged side opening slots (1001) are opened on one side of the vertical surface of the fixed strip (1000). A spring (1002) is fixedly connected to the lower inner wall of the side opening slot (1001). The free ends of the two springs (1002) are elastically connected to a follower inner slide plate (1003). The follower inner slide plate (1003) is slidably connected to the two side opening slots (1001).

4. The high efficiency impact crusher for ore material according to claim 3, characterized in that, The two vertically corresponding follower inner slide plates (1003) are respectively fixedly connected to flexible abutment strips (1004) at their close ends, and the industrial non-woven fabric (902) passes through the position between the two flexible abutment strips (1004).

5. The high efficiency impact crusher for ore material according to claim 4, characterized in that, The flexible abutment strip (1004) is made of nitrile rubber and has an arc-shaped cross-section.

6. The high efficiency impact crusher for ore material according to claim 1, characterized in that, The rigid mesh (8) is made of stainless steel with square mesh holes and protrusions on the edge of the rigid mesh (8). The protrusions are connected to the strip frame block (6) and the electric push rod (7) by bolts.

7. The high-efficiency impact crusher for ore materials according to claim 1, characterized in that, Both the unwinding horizontal shaft (900) and the winding horizontal shaft (901) are made of seamless steel pipes with the same outer diameter. They are rotatably connected to the inner wall of the strip frame block (6) through rolling bearings to reduce the friction when the unwinding horizontal shaft (900) and the winding horizontal shaft (901) rotate.

8. The high-efficiency impact crusher for ore materials according to claim 1, characterized in that, The drive assembly (2) includes a drive motor and a gearbox. The drive motor and the gearbox are coaxially connected by a coupling, and the output end of the gearbox is connected to the reinforced crushing panel (3) by a flat key.

9. The high-efficiency impact crusher for ore materials according to claim 1, characterized in that, The industrial nonwoven fabric (902) is a needle-punched dust removal nonwoven fabric, and its width is consistent with the area between the two rigid mesh surfaces (8).

10. The high-efficiency impact crusher for ore materials according to claim 1, characterized in that, The end of the suction pipe (5) near the rigid mesh surface (8) has a flared structure, and the flared structure is trumpet-shaped.

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