Novel mining hammer crusher

Abstract

The invention belongs to the field of hammer crushers, and discloses a novel mining hammer crusher which comprises a first rotating device, and the end face of an output shaft of the first rotating device is fixedly connected with a double-shaft detachable crushing mechanism; the double-shaft detachable crushing mechanism comprises a first detachable hammer head device, a V-shaped belt is arranged on the surface, away from the first rotating device, of the first detachable hammer head device, and a second detachable hammer head device is arranged at the end, away from the first detachable hammer head device, of the V-shaped belt. According to the novel hammer crusher for the mine, the contact area between the hammer head and materials is larger in the striking process of the materials through the trapezoidal hammer head, the hammer head can apply more uniform acting force to the materials through the larger contact area in the operation process of the novel hammer crusher for the mine, kinetic energy can be more effectively transmitted to the materials, the materials are more easily crushed, and the service life of the novel hammer crusher for the mine is prolonged. And when the trapezoidal hammer head rotates at a high speed to hit the materials, the appropriate hitting angle enables the materials to be more easily crushed in the preset direction after being impacted.

Description

Technical Field

[0001] The present invention relates to the technical field of hammer crushers, and particularly to a new type of hammer crusher for mines. Background Art

[0002] With the continuous development of the global economy, the demand for various ore resources is increasing. In order to increase production, mining enterprises need more efficient crushing equipment to process a large amount of ore raw materials. Traditional crushers are gradually difficult to meet the needs of large-scale production in terms of processing capacity and efficiency. Therefore, the research and development of new type of hammer crushers have been promoted to achieve higher crushing efficiency and production capacity, and help mining enterprises improve economic benefits.

[0003] The patent application with the application number CN201323139454.0 discloses a double-rotor hammer crusher for mines, which includes a box body. An inlet hopper is opened at the top end of the box body. A crushing box is fixedly connected by embedding at the upper end of the box body. A plurality of equally spaced and arrayed material passing openings are opened in the middle of the crushing box. A crushing mechanism is arranged in the crushing box. A mounting plate is slidably connected to the lower end of the crushing box, and the mounting plate is located at the lower end of the material passing opening.

[0004] At present, there are certain optimizations in the crushing effect and efficiency of the double-rotor hammer crusher for mines. However, the double-rotor hammer crusher for mines can be optimized in terms of structure for the crushing device, filtering device, etc., to improve the crushing efficiency and effect of minerals, reduce maintenance costs, and reduce the generation of dust. In view of this, the test device is improved. Summary of the Invention

[0005] The purpose of the present invention is to provide a new type of hammer crusher for mines to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A new type of hammer crusher for mines includes a first rotating device, and a double-shaft detachable crushing mechanism is fixedly connected to the end face of the output shaft of the first rotating device; The double-shaft detachable crushing mechanism includes a first detachable hammer head device. A V-belt is arranged on the surface of the first detachable hammer head device away from the first rotating device, and a second detachable hammer head device is arranged at one end of the V-belt away from the first detachable hammer head device.

[0007] Preferably, the first detachable hammer head device includes a transmission shaft. A notch is opened on the surface of the transmission shaft. A long strip-shaped trapezoidal hammer head is movably connected inside the notch. A limiting block is fixedly connected to the end face of the long strip-shaped trapezoidal hammer head, and a gear-rack moving device is arranged on the top of the limiting block.

[0008] Preferably, the number of the double-shaft detachable crushing mechanisms is two. The first detachable hammer device and the second detachable hammer device have the same size, but different positions. The second detachable hammer device is located at the bottom of the first detachable hammer device, with a gap between them. And the second detachable hammer device is closer to the center line between the two double-shaft detachable crushing mechanisms. A housing is provided at one end of the first rotating device close to the output shaft, and the double-shaft detachable crushing mechanism is located inside the housing.

[0009] Preferably, the notch is rectangular and bends around the cylindrical surface of the transmission shaft. A part of the long strip-shaped trapezoidal hammer located inside the notch is rectangular, and the rest is trapezoidal. The limit block is located at the bottom of the rack of the gear-rack moving device, and the gear-rack moving device is fixedly connected to the transmission shaft.

[0010] Preferably, the housing includes a feed inlet. Vibration devices are fixedly connected to two inner walls of the housing perpendicular to the axis of the transmission shaft. A splash-proof plate is fixedly connected inside the housing. A collection cavity is provided inside the housing. A first arc-shaped filter plate is fixedly connected inside the housing. A first transmission plate is arranged at the bottom of the first arc-shaped filter plate. A rectangular groove is provided inside the housing.

[0011] Preferably, the vibration device includes a rotating shaft. A rotating rod is rotatably connected to the surface of the rotating shaft, and an impact block is fixedly connected to one end of the rotating rod.

[0012] The impact block is movably connected to the surface of the first arc-shaped filter plate under the action of gravity. The end of the rotating rod away from the impact block is movably connected to the surface of the double-shaft detachable crushing mechanism. The number of the splash-proof plates is two, and both splash-proof plates are located between the first detachable hammer device and the second detachable hammer device. The first transmission plate is inclined to the bottom wall of the housing. The first arc-shaped filter plate is located at the bottom of the second detachable hammer device. Both ends of the first transmission plate partially overlap with the first arc-shaped filter plate and the collection cavity respectively. The number of the first transmission plate and the collection cavity is two, and they are symmetric along the center line between the two double-shaft detachable crushing mechanisms. The bottom plate of the collection cavity forms a certain inclination angle with the bottom wall of the housing. A dust-proof mechanism is fixedly connected to the top of the housing.

[0013] Preferably, the number of the vibration devices is four, all located on the surface of the first arc-shaped filter plate. The rotating shaft is fixedly connected to the housing. The rotating shaft is not located at the center of the rotating rod. The impact block is located at the end of the rotating rod farther from the rotating shaft.

[0014] Preferably, the dust-proof mechanism includes an air inlet pipe. One end of the air inlet pipe away from the housing is fixedly connected with an anti-diffusion pipe. One end of the air inlet pipe away from the housing is fixedly connected with a storage box. The air inlet pipe is located inside the rectangular groove. The anti-diffusion pipe is located inside the storage box. An air flow generating device is fixedly connected inside the air inlet pipe. The dust-proof mechanism is located above the collection cavity.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. For this new type of hammer crusher for mining, through the trapezoidal hammer head, during the striking process of the material, the hammer head and the material have a larger contact area. During the operation of the new type of hammer crusher for mining, the larger contact area can enable the hammer head to exert a more uniform force on the material, and can more effectively transfer kinetic energy to the material, making it easier for the material to be crushed. And when the trapezoidal hammer head strikes the material at a high speed, the appropriate striking angle makes it easier for the material to break along the predetermined direction after being impacted, reducing the rebound and sliding of the material, enabling the material to be more fully subjected to the impact effect, thereby improving the crushing effect and efficiency.

[0016] 2. For this new type of hammer crusher for mining, through the detachable design of the trapezoidal hammer head, when an accident of hammer head damage occurs during the operation of the new type of hammer crusher for mining, the damaged hammer head can be replaced separately, without the need to disassemble the entire set of hammer heads or adjust other components, reducing both the maintenance cost and the maintenance time. By reducing the maintenance time, the maintenance efficiency per unit time is improved.

[0017] 3. For this new type of hammer crusher for mining, through the cooperation of two double-shaft detachable crushing mechanisms, the crushing process of the new type of hammer crusher for mining is refined. The material is initially crushed by the first detachable hammer head device located above, and then the material after preliminary crushing is secondarily crushed by the second detachable hammer head device below. In this way, the crushing process is split into two stages. Through the continuous operation of the two stages, the material can gradually reach the target particle size under different crushing conditions. Compared with single-stage crushing that needs to directly crush the material from the initial large block to the final particle size, staged crushing shortens the crushing time required for each stage, increases the material processing capacity per unit time, and improves the crushing effect of the material by refining the crushing process.

[0018] 4. The new type of hammer crusher for mining, during the operation of the new type of hammer crusher for mining, the first rotating device drives the double-axis detachable crushing mechanism to rotate, when the long trapezoidal hammer head on the surface of the rotating double-axis detachable crushing mechanism contacts the shorter end of the rotating rod, the shorter end of the rotating rod is exerted with downward pressure, and the end of the rotating rod connected to the impact block is lifted, and when the long trapezoidal hammer head does not contact the shorter end of the rotating rod due to rotation, the end of the rotating rod connected to the impact block is lifted and descended under the influence of gravity to hit the surface of the first arc filter plate, causing the arc filter plate to vibrate and accelerate the screening process of the filter plate, thereby improving the crushing efficiency of the device.

[0019] 5. The new type of hammer crusher for mining generates airflow through the operation of the dust prevention mechanism. The airflow carries the dust generated during the operation of the new type of hammer crusher for mining, and then the airflow brings the dust into the storage box along the anti-escape pipe. When the dust inside the storage box is lifted up due to external force, the lifted dust is intercepted inside the anti-escape pipe, so as to collect the generated dust and prevent the collected dust from escaping from the storage box. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the back structure of the present invention; Figure 3 It is a structural schematic diagram of the double-shaft detachable crushing mechanism of the present invention; Figure 4 It is a structural schematic diagram of a first detachable hammer head device of the present invention; Figure 5 For the present invention Figure 4 A is an enlarged schematic diagram; Figure 6 It is a structural schematic diagram of the housing of the present invention; Figure 7 is a cross-sectional view of the housing of the present invention; Figure 8 For the present invention Figure 7 A magnified schematic diagram of B; Figure 9 It is a schematic diagram of the structure of the vibration device of the present invention; Figure 10 It is a structural schematic diagram of the dustproof mechanism of the present invention; Figure 11 It is a cross-sectional view of the dustproof mechanism of the present invention.

[0021] In the figure: 1. First rotating device; 2. Biaxial detachable crushing mechanism; 201. First detachable hammer device; 202. V-belt; 203. Second detachable hammer device; 2011. Transmission shaft; 2012. Notch; 2013. Long strip trapezoidal hammer; 2014. Limit block; 2015. Gear rack moving device; 3. Housing; 301. Feed inlet; 302. Vibration device; 3021. Rotating shaft; 3022. Rotating rod; 3023. Impact block; 303. Splash guard; 304. Collection cavity; 305. First arc filter plate; 306. First transfer plate; 307. Rectangular groove; 4. Dust-proof mechanism; 401. Intake pipe; 402. Anti-escaping pipe; 403. Storage tank; 404. Air flow generating device. Detailed implementation mode

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Example 1, please refer to Figures 1 - 5, the present invention provides a technical solution: a new type of hammer crusher for mines, including a first rotating device 1. A double-shaft detachable crushing mechanism 2 is fixedly connected to the end face of the output shaft of the first rotating device 1. A housing 3 is provided at one end of the first rotating device 1 close to the output shaft. The double-shaft detachable crushing mechanism 2 is located inside the housing 3. The double-shaft detachable crushing mechanism 2 includes a first detachable hammer head device 201, which is used for initially crushing materials. The first detachable hammer head device 201 includes a transmission shaft 2011. A notch 2012 is formed on the surface of the transmission shaft 2011. The notch 2012 is rectangular and bent around the cylindrical surface of the transmission shaft 2011. The notch 2012 bent around the cylindrical surface of the transmission shaft 2011 is used to limit the freedom degree of the long strip-shaped trapezoidal hammer head 2013, making the fixing and disassembling process of the long strip-shaped trapezoidal hammer head 2013 more simple and convenient. A long strip-shaped trapezoidal hammer head 2013 is movably connected inside the notch 2012. A part of the long strip-shaped trapezoidal hammer head 2013 located inside the notch 2012 is rectangular, and the rest is trapezoidal. A limiting block 2014 is fixedly connected to the end face of the long strip-shaped trapezoidal hammer head 2013. The limiting block 2014 is used to cooperate with the gear-rack moving device 2015 to fix the long strip-shaped trapezoidal hammer head 2013. The limiting block 2014 is located at the bottom of the rack of the gear-rack moving device 2015. A gear-rack moving device 2015 is provided on the top of the limiting block 2014. The gear-rack moving device 2015 is fixedly connected to the transmission shaft 2011. A V-belt 202 is provided on the surface of the first detachable hammer head device 201 far from the first rotating device 1. The V-belt 202 is used to connect the first detachable hammer head device 201 and the second detachable hammer head device 203 and transmit the kinetic energy of the first detachable hammer head device 201 to the second detachable hammer head device 203. A second detachable hammer head device 203 is provided at one end of the V-belt 202 far from the first detachable hammer head device 201. The second detachable hammer head device 203 is used for secondary crushing of materials. The number of the double-shaft detachable crushing mechanisms 2 is two. The first detachable hammer head device 201 and the second detachable hammer head device 203 have the same size, but different positions. The second detachable hammer head device 203 is located at the bottom of the first detachable hammer head device 201, with a gap between them, and the second detachable hammer head device 203 is closer to the center line between the two double-shaft detachable crushing mechanisms 2.

[0024] Working principle of this embodiment: The first rotating device 1 rotates at high speed to drive the first detachable hammer head device 201 to rotate at high speed. The first detachable hammer head device 201 rotating at high speed drives the second detachable hammer head device 203 to rotate at high speed through the V-belt 202. The first detachable hammer head device 201 rotating at high speed drives the strip-shaped trapezoidal hammer head 2013 on its surface to rotate at high speed, so that the strip-shaped trapezoidal hammer head 2013 obtains a huge linear velocity and kinetic energy. When the material enters the inside of this new type of hammer crusher for mines through the feed inlet 301, the strip-shaped trapezoidal hammer head 2013 rotating at high speed will impact the material at an extremely high speed. This strong impact force instantly breaks the internal structure of the material, causing the material to bear a huge external force in a short time, thereby breaking the large pieces of material into smaller pieces. Then, the preliminarily crushed material falls under the influence of gravity. The falling material enters between the two second detachable hammer head devices 203 with smaller gaps. Then, the two second detachable hammer head devices 203 rotating at high speed perform secondary crushing on the material that has been initially crushed, breaking the internal structure of the material again into finer particles. When the strip-shaped trapezoidal hammer head 2013 is damaged during the operation of the double-shaft detachable crushing mechanism 2, the gear and rack moving device 2015 that restricts the movement of the damaged strip-shaped trapezoidal hammer head 2013 operates to move the rack at the top of the limit block 2014 horizontally. When the rack moves out of the top space of the limit block 2014, the damaged strip-shaped trapezoidal hammer head 2013 is taken out. Then, the spare strip-shaped trapezoidal hammer head 2013 is installed into the notch 2012, and then the gear and rack moving device 2015 operates again to move the rack above the limit block 2014 fixedly connected to the strip-shaped trapezoidal hammer head 2013.

[0025] Embodiment 2. On the basis of Embodiment 1, please refer to Figures 6 - 11, the present invention provides a technical solution: The housing 3 includes a feed inlet 301. Two inner walls of the housing 3 perpendicular to the axis of the transmission shaft 2011 are fixedly connected with vibration devices 302. The number of vibration devices 302 is four, and they are all located on the surface of the first arc-shaped filter plate 305. The vibration device 302 includes a rotating shaft 3021. The rotating shaft 3021 is used to support the rotation of the rotating rod 3022 while restricting the degree of freedom of the rotating rod 3022. The rotating shaft 3021 is fixedly connected with the housing 3. The rotating shaft 3021 is not located at the center of the rotating rod 3022. The impact block 3023 is located at the end of the rotating rod 3022 farther from the rotating shaft 3021. The impact block 3023 is used to impact the surface of the first arc-shaped filter plate 305 to cause vibration. At the same time, because the impact block 3023 is located at the end of the rotating rod 3022 farther from the rotating shaft 3021, the impact force of the impact block 3023 is increased. The surface of the rotating shaft 3021 is rotatably connected with a rotating rod 3022. One end of the rotating rod 3022 is fixedly connected with an impact block 3023. The impact block 3023 is movably connected with the surface of the first arc-shaped filter plate 305 under the action of gravity. The end of the rotating rod 3022 away from the impact block 3023 is movably connected with the surface of the double-shaft detachable crushing mechanism 2. The end of the rotating rod 3022 away from the impact block 3023 is movably connected with the surface of the double-shaft detachable crushing mechanism 2 to intermittently apply pressure to the end of the rotating rod 3022 connected to it during the operation of the double-shaft detachable crushing mechanism 2, so that the end of the rotating rod 3022 fixedly connected with the impact block 3023 continuously impacts the first arc-shaped filter plate 305 under the influence of pressure and gravity. Inside the housing 3, a splash-proof plate 303 is fixedly connected. The splash-proof plate 303 is used to prevent the material from leaving the crushing range during the process of falling between the two second detachable hammer devices 203 after being initially crushed by the first detachable hammer device 201. The number of splash-proof plates 303 is two, and both splash-proof plates 303 are located between the first detachable hammer device 201 and the second detachable hammer device 203. A collection cavity 304 is opened inside the housing 3. The bottom plate of the collection cavity 304 forms a certain inclination angle with the bottom wall of the housing 3. The inclined bottom wall at the bottom of the collection cavity 304 is used to concentrate the material inside the collection cavity 304 in one direction, which is more convenient for cleaning when cleaning the material in the collection cavity 304. Inside the housing 3, a first arc-shaped filter plate 305 is fixedly connected. The first arc-shaped filter plate 305 is used to filter the material after preliminary crushing and make the unqualified crushed material slide down along the curved ends, so that it enters the collection cavity 304 to collect the unqualified material and prevent the unqualified material from accumulating and affecting the working efficiency of the first arc-shaped filter plate 305. The first arc-shaped filter plate 305 is located at the bottom of the second detachable hammer device 203. A first transfer plate 306 is arranged at the bottom of the first arc-shaped filter plate 305.The first transmission plate 306 is used to receive the unqualified materials sliding off the surface of the first arc filter plate 305 and then make the unqualified materials slide into the collecting cavity 304 to collect the unqualified materials. The two ends of the first transmission plate 306 partially overlap with the first arc filter plate 305 and the collecting cavity 304 respectively. The first transmission plate 306 is inclined to the bottom wall of the shell 3. The number of the first transmission plate 306 and the collecting cavity 304 are both two, and they are symmetrical along the center line between the two double-axis detachable crushing mechanisms 2. The shell 3 A rectangular groove 307 is provided inside, and a dustproof mechanism 4 is fixedly connected to the top of the shell 3. The dustproof mechanism 4 includes an air inlet pipe 401, and an anti-escape pipe 402 is fixedly connected to the end of the air inlet pipe 401 away from the shell 3, and a storage box 403 is fixedly connected to the end of the air inlet pipe 401 away from the shell 3. The air inlet pipe 401 is located inside the rectangular groove 307, and the anti-escape pipe 402 is located inside the storage box 403. An airflow generating device 404 is fixedly connected inside the air inlet pipe 401, and the dustproof mechanism 4 is located above the collection cavity 304.

[0026] The working principle of this embodiment is as follows: the materials are preliminarily crushed by two first detachable hammer devices 201, and the preliminarily crushed materials fall onto the surface of the first arc filter plate 305 under the influence of gravity. While the first arc filter plate 305 filters the preliminarily crushed materials, the materials on the surface of the first arc filter plate 305 slide to both ends due to the arc surface of the first arc filter plate 305. During the rotation of the first detachable hammer device 201, the top height of the elongated trapezoidal hammer 2013 located on the cylindrical surface of the rotating shaft 3021 is higher than the cylindrical surface of the rotating shaft 3021. Therefore, during the rotation of the first detachable hammer device 201, the rotating rod 3022 located at the bottom of the first detachable hammer device 201 is repeatedly pressed. When pressure is applied to the rotating rod 3022, the end of the rotating rod 3022 connected to the impact block 3023 is lifted up, and then pressed again. During the time when the force disappears, one end of the rotating rod 3022 connected to the impact block 3023 falls under the influence of gravity, and then the impact block 3023 hits the surface of the first arc filter plate 305 to cause the first arc filter plate 305 to vibrate, and the materials sliding down from both ends of the first arc filter plate 305 fall onto the inclined first transmission plate 306, and then enter the collection cavity 304 under the influence of gravity. In the process of the double-axis detachable crushing mechanism 2 crushing the material, the airflow generating device 404 works to generate airflow, and the airflow drives the dust generated in the process of crushing the material by the double-axis detachable crushing mechanism 2 to flow, and the flowing dust enters the storage box 403 through the anti-escape pipe 402. When the dust-proof mechanism 4 stops working and the dust inside the storage box 403 is lifted up due to external force, the scattered dust is intercepted in the anti-escape pipe 402 through the curved corner inside the anti-escape pipe 402.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of hammer crusher for mining, comprising a first rotating device (1), characterized in that: The end surface of the output shaft of the first rotating device (1) is fixedly connected to a double-shaft detachable crushing mechanism (2); The double-shaft detachable crushing mechanism (2) comprises a first detachable hammer device (201), a surface of the first detachable hammer device (201) away from the first rotating device (1) is provided with a V-belt (202), and an end of the V-belt (202) away from the first detachable hammer device (201) is provided with a second detachable hammer device (203).

2. A new type of hammer crusher for mining according to claim 1, characterized in that: The first detachable hammer head device (201) comprises a transmission shaft (2011), a notch (212) is provided on the surface of the transmission shaft (2011), a long trapezoidal hammer head (2013) is movably connected inside the notch (2012), an end face of the long trapezoidal hammer head (2013) is fixedly connected to a limiting block (2014), and a gear rack moving device (2015) is provided on the top of the limiting block (2014).

3. A new type of mining hammer crusher according to claim 1, characterized in that: The number of the double-shaft detachable crushing mechanisms (2) is two; the first detachable hammer device (201) and the second detachable hammer device (203) are of the same size; the first detachable hammer device (201) and the second detachable hammer device (203) are located at different positions; the second detachable hammer device (203) is located at the bottom of the first detachable hammer device (201), with a gap therebetween; and the second detachable hammer device (203) is closer to the center line between the two double-shaft detachable crushing mechanisms (2); a shell (3) is provided at one end of the first rotating device (1) close to the output shaft; and the double-shaft detachable crushing mechanism (2) is located inside the shell (3).

4. A new type of hammer crusher for mining according to claim 2, characterized in that: The notch (2012) is rectangular and curved around the cylindrical surface of the transmission shaft (2011); a portion of the long trapezoidal hammer head (2013) located inside the notch (2012) is rectangular, and the remaining portion is trapezoidal; the limit block (2014) is located at the bottom of the rack of the gear rack moving device (2015); and the gear rack moving device (2015) is fixedly connected to the transmission shaft (2011).

5. A new type of hammer crusher for mining according to claim 3, characterized in that: The shell (3) comprises a feed inlet (301); two inner walls of the shell (3) perpendicular to the axis of the transmission shaft (2011) are fixedly connected to a vibration device (302); a splash plate (303) is fixedly connected inside the shell (3); a collecting cavity (304) is provided inside the shell (3); a first arc-shaped filter plate (305) is fixedly connected inside the shell (3); a first transmission plate (306) is provided at the bottom of the first arc-shaped filter plate (305); and a rectangular groove (307) is provided inside the shell (3).

6. A new type of hammer crusher for mining according to claim 5, characterized in that: The vibration device (302) comprises a rotating shaft (3021), the surface of which is rotatably connected to a rotating rod (3022), and one end of which is fixedly connected to a collision block (3023).

7. A new type of hammer crusher for mining according to claim 6, characterized in that: The impact block (3023) is movably connected to the surface of the first arc-shaped filter plate (305) under the action of gravity. The end of the rotating rod (3022) away from the impact block (3023) is movably connected to the surface of the double-axis detachable crushing mechanism (2). There are two splash plates (303), and both of the two splash plates (303) are located between the first detachable hammer head device (201) and the second detachable hammer head device (203). The first transmission plate (306) is inclined at the bottom wall of the shell (3). (305) is located at the bottom of the second detachable hammer head device (203), the two ends of the first transmission plate (306) partially overlap with the first arc-shaped filter plate (305) and the collection cavity (304), the number of the first transmission plate (306) and the collection cavity (304) are both two, and they are symmetrical along the center line between the two dual-axis detachable crushing mechanisms (2), the bottom plate of the collection cavity (304) and the bottom wall of the shell (3) are inclined at a certain angle, and the top of the shell (3) is fixedly connected with a dustproof mechanism (4).

8. A new type of hammer crusher for mining according to claim 6, characterized in that: There are four vibration devices (302), all of which are located on the surface of the first arc-shaped filter plate (305); the rotation shaft (3021) is fixedly connected to the housing (3); the rotation shaft (3021) is not located at the center of the rotation rod (3022); and the impact block (3023) is located at an end of the rotation rod (3022) that is farther from the rotation shaft (3021).

9. A new type of hammer crusher for mining according to claim 7, characterized in that: The dust prevention mechanism (4) comprises an air intake pipe (401), one end of the air intake pipe (401) away from the shell (3) is fixedly connected to an anti-escape pipe (402), one end of the air intake pipe (401) away from the shell (3) is fixedly connected to a storage box (403), the air intake pipe (401) is located inside the rectangular groove (307), the anti-escape pipe (402) is located inside the storage box (403), the air intake pipe (401) is fixedly connected to an airflow generating device (404), and the dust prevention mechanism (4) is located above the collection cavity (304).

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