Sinking noise reduction type stone crushing device

Abstract

The sinking noise reduction type stone crushing device comprises a sinking pit which is 5-15 meters lower than the ground, a hardened base face is arranged at the pit bottom of the sinking pit, a damping mechanism is fixedly arranged at the upper end of the hardened base face, a crusher is arranged in the sinking pit, the crusher is fixedly arranged above the damping mechanism, and a discharging component and a feeding component are further arranged in the sinking pit. The upper end of the discharging component extends to the position above the ground outside the sinking pit, the lower end of the discharging component is connected with a feeding port of the crusher, the lower end of the feeding component is connected with a discharging port of the crusher, the upper end of the feeding component extends to the position above the ground outside the sinking pit, and a pit top incompletely covering an opening in the top of the sinking pit is further fixedly arranged over the crusher. According to the device, the jaw crusher is arranged in the sinking pit in the form of the sinking pit in cooperation with a corresponding mechanism, so that huge noise generated when the jaw crusher crushes stones can be effectively reduced with low cost.

Description

Technical Field

[0001] The invention relates to the technical field of stone crushing, and in particular to a sinking noise reduction type stone crushing device. Background Art

[0002] Stone crushing refers to breaking large pieces of raw stone into smaller pieces, usually using a jaw crusher. Jaw crushers are large in size and produce a lot of noise during the crushing process. If effective measures are not taken to reduce the noise, it will cause a lot of noise pollution to the production environment and the surrounding environment outside the factory.

[0003] When the jaw crusher is subjected to noise reduction treatment, the main method is to build a noise reduction wall outside the jaw crusher to wrap it. The disadvantage of this method is that it has high requirements on the wall thickness and sound insulation board of the wall. Not only is the cost high, but it also occupies a large amount of land above the ground. If the wall thickness does not meet the standard or the sound insulation board is damp, the noise reduction effect will be seriously reduced.

[0004] Therefore, it is necessary to design a new noise reduction treatment method that can effectively reduce the huge noise generated by the jaw crusher when crushing stones at a lower cost. Summary of the invention

[0005] The purpose of the present invention is to provide a sinking noise reduction type stone crushing device, which is mainly in the form of a sinking pit, with corresponding mechanisms, and a jaw crusher is arranged in the sinking pit to solve the problems described in the background technology.

[0006] The technical solution of the present invention is achieved in this way:

[0007] A sinking noise reduction stone crushing device comprises a sinking pit 5-15 meters below the ground, a hardened base surface is provided at the bottom of the sinking pit, a shock absorbing mechanism is fixedly provided on the upper end of the hardened base surface, a crusher is provided in the sinking pit, the crusher is fixedly provided above the shock absorbing mechanism, a unloading component and a loading component are also provided in the sinking pit, the upper end of the unloading component extends to above the ground outside the sinking pit, the lower end of the unloading component is connected to the feed port of the crusher, the lower end of the loading component is connected to the discharge port of the crusher, the upper end of the loading component extends to above the ground outside the sinking pit, and a pit top which does not completely cover the top opening of the sinking pit is fixedly provided directly above the crusher.

[0008] When using the above solution, a 5-15 meter sinking pit is dug below the ground of the plant, and the side walls of the sinking pit are compacted. In the best case, reinforced concrete is used for reinforcement. At the same time, the placement surface of the crusher in the sinking pit is hardened to form a hardened base surface. By setting a shock-absorbing mechanism on the hardened base surface and installing the crusher above the shock-absorbing mechanism, the vibration energy transmitted from the crusher to the bottom of the sinking pit can be effectively reduced, thereby reducing the damage of the vibration energy to the bottom of the pit and reducing the noise volume.

[0009] The large stones are transported to the crusher through the unloading parts, and after being crushed by the crusher, the crushed materials are output through the loading parts, which effectively and conveniently solves the loading and unloading problems of the crusher in the sinking pit.

[0010] When the crusher in the sinkhole is working, the sound waves emitted by the crusher are mainly classified into two dimensions, namely the upward direction and the surrounding directions. After the sound waves in the surrounding directions hit the side walls of the sinkhole, part of them are absorbed by the thick soil, and part of them rebound into the sinkhole. The multiple sound waves that rebound into the sinkhole weaken each other after multiple collisions in a chaotic state, thereby effectively reducing the energy of the sound waves transmitted from the sinkhole, thereby reducing the noise. The sound waves in the upward direction are also continuously weakened by the rebounding sound waves during the propagation process. When the sound waves in the forward direction are transmitted to the top of the pit, part of them are absorbed by the top of the pit, and part of them are blocked by the top of the pit and then rebound. Only a small part of the sound waves pass through the top of the pit to the outside. Therefore, the energy of the sound waves transmitted from the sinkhole is effectively reduced, thereby reducing the noise. At the same time, the noise transmitted from the sinkhole basically propagates upward, affecting the surrounding noise.

[0011] This device effectively reduces the cost of the entire noise reduction device by digging a sinking pit. The earth and stone produced when digging the sinking pit can also be used as materials or sold, further reducing costs. At the same time, the sinking pit uses the infinite thickness of the land itself to absorb sound wave energy, and the energy absorption effect is good.

[0012] A further technical solution is that noise reduction bricks are also laid on the side pit walls of the sinking pit, and the noise reduction bricks are fixedly laid upward from the pit bottom of the sinking pit along the side pit walls of the sinking pit to form a noise reduction wall.

[0013] When using the above solution, by laying noise reduction bricks to form a noise reduction wall, the energy absorption efficiency of sound waves can be further improved, and the noise can be further reduced. With the cooperation of the noise reduction wall, the excavation depth of the sinking pit can be further reduced, which reduces the excavation work and reduces the cost. At the same time, the price of noise reduction bricks is cheaper than that of sound insulation boards, and they are not afraid of moisture.

[0014] A further technical solution is that a side of the noise reduction wall facing the crusher is an uneven wall surface.

[0015] When using the above solution, by setting the wall surface of the noise reduction wall to be an uneven wall surface, the absorption of sound waves is further improved, which is also conducive to the rapid collision and reduction of sound waves when rebounding.

[0016] A further technical solution is that the uneven wall surface is a wavy wall surface.

[0017] When using the above solution, the wavy wall is not only easy to lay, reducing the construction difficulty and construction cost, but also the surface area of ​​the wall is larger, and the sound wave absorption effect is better.

[0018] A further technical solution is that a rectangular pit is dug at the bottom of the sinking pit, and the pit is filled with rectangular hard blocks of reinforced concrete structure to form the hardened base surface.

[0019] When the above scheme is used, the cost of the hardened base surface is lowered by digging pits and filling them with rectangular blocks of reinforced concrete structure.

[0020] A further technical solution is that the shock absorbing mechanism includes a base plate, a rubber pad and a mounting plate, the base plate is fixedly mounted on the upper end of the hardened base surface, a lower rubber groove is provided on the upper end surface of the base plate, the rubber pad is slidably sleeved in the lower rubber groove, the rubber pad cannot rotate and translate in the lower rubber groove, the mounting plate is arranged above the rubber pad, an upper rubber groove with the same cross-section as the lower rubber groove is provided on the lower end surface of the mounting plate, the number of the upper rubber grooves is the same as the number of the lower rubber grooves and they are aligned one by one, the mounting plate is slidably sleeved on the rubber pad through the upper rubber groove, and when the top of the upper rubber groove abuts against the top of the rubber pad, the lower end surface of the mounting plate does not abut against the upper end surface of the base plate.

[0021] When using the above solution, by providing the lower glue groove, the rubber pad and the upper glue groove, the mounting plate is not in direct contact with the bottom plate, the rubber pad can effectively absorb vibration energy, and the shock-absorbing structure is also easy to install and maintain.

[0022] A further technical solution is that the number of lower glue grooves is at least nine, and the lower glue grooves are evenly distributed on the upper end surface of the bottom plate in a horizontal and vertical grid shape, and the multiple lower glue grooves are distributed in at least three rows and at least three columns.

[0023] When the above solution is used, the grid-like evenly spaced distribution method not only reduces the amount of rubber pads used, but also makes the installation of the mounting plate more stable.

[0024] A further technical solution is that the unloading component is a unloading conveyor belt, one end of the unloading conveyor belt extends to the feed port of the crusher, and the other end of the unloading conveyor belt extends obliquely upward to above the ground outside the sinking pit.

[0025] A further technical solution is that the material discharge component includes an inclined feed chute, a spiral material discharge channel, an inclined discharge chute and a support frame. The support frame is fixed at the bottom of the sinking pit, the spiral material discharge channel is fixed on the support frame, one end of the inclined feed chute is connected to the entrance of the spiral material discharge channel, and the other end of the inclined feed chute extends obliquely upward to above the ground outside the sinking pit, one end of the inclined discharge chute is connected to the outlet of the spiral material discharge channel, and the other end of the inclined discharge chute extends obliquely downward to the feed port of the crusher.

[0026] When using the above solution, the spiral material feeding method is simpler and more convenient, and occupies a smaller area, which can reduce the excavation area of ​​the sinking pit, reduce the excavation and installation workload of the sinking pit, and reduce the excavation and installation costs.

[0027] A further technical solution is that the feeding component is a lifting conveyor belt, one end of the lifting conveyor belt extends below the discharge port of the crusher, and the other end of the lifting conveyor belt extends obliquely upward to above the ground outside the sinking pit.

[0028] The beneficial effects of the present invention are:

[0029] 1. Effectively reduce vibration and noise: By digging a sinking pit and setting up a shock-absorbing mechanism in the pit, the vibration energy of the crusher during operation is significantly reduced, which reduces damage to the bottom of the pit and effectively reduces the noise volume. Secondly, the wavy wall is easy to lay, which reduces the difficulty and cost of construction, and increases the sound wave absorption area. The sound waves are weakened after multiple reflections and collisions in the sinking pit, further reducing the propagation of noise. At the same time, the sound waves in the upward direction are continuously weakened during the propagation process, and only a small part of the sound waves can penetrate the top of the pit, effectively reducing the impact of noise on the surrounding environment.

[0030] 2. Cost saving: Digging a sinking pit reduces the cost of the entire noise reduction device, and the excavated earth and stone can be reused or sold, further reducing costs. Secondly, the sinking pit uses the thickness of the land itself to absorb the energy of sound waves, without the need to purchase expensive sound insulation materials. At the same time, when using noise reduction bricks to lay noise reduction walls, the price is low and it is not afraid of moisture, which is more cost-effective than sound insulation boards.

[0031] 3. Efficient use of space: The sinking pit not only does not occupy the area above the ground, but also further reduces the occupied area by cooperating with the spiral feeding method. In combination with the noise reduction wall, the excavation depth of the sinking pit can be further reduced, thereby reducing the excavation area and cost of the sinking pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a general schematic diagram of the present invention;

[0033] Figure 2 It is a partial structural top view of the present invention (the pit top, crusher and feeding parts are hidden);

[0034] Figure 3 It is a schematic diagram of the coordination between the pit top and the sinking pit;

[0035] Figure 4 This is a schematic diagram of the laying of noise reduction bricks;

[0036] Figure 5 Schematic diagram of the shock absorbing mechanism.

[0037] In the figure, 1. sinking pit, 2. noise reduction bricks, 3. lifting conveyor belt, 4. spiral unloading channel, 5. support frame, 6. jaw crusher, 7. bottom plate, 8. lower glue groove, 9. rubber pad, 10. mounting plate, 11. upper glue groove, 12. mounting bolts, 13. through holes, 14. positioning rods, 15. hardened base surface, 16. inclined feed chute, 17. inclined discharge chute, and 18. pit top. DETAILED DESCRIPTION

[0038] In order to better understand the technical content of the present invention, specific embodiments are provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0039] See also Figures 1 to 5 , a sinking noise reduction type stone crushing device, comprising a sinking pit 1 5-15 meters below the ground.

[0040] Preferably, the cross section of the sinking pit 1 is rectangular, and the side pit walls of the sinking pit 1 are compacted and reinforced by building walls with reinforced concrete structures.

[0041] Preferably, when no noise reduction wall is provided, the excavation depth of the sinking pit 1 is 9-12 meters.

[0042] Preferably, noise reduction bricks 2 are also laid on the side pit walls of the sinking pit 1. The noise reduction bricks 2 are rectangular autoclaved aerated concrete blocks. The noise reduction bricks 2 are fixedly laid upward from the bottom of the sinking pit 1 along the side pit walls of the sinking pit 1 in sequence to form a noise reduction wall.

[0043] Preferably, the side of the noise reduction wall facing the crusher is an uneven wall surface.

[0044] Preferably, the uneven wall surface is a wavy wall surface, a side edge of the noise reduction brick 2 protrudes outward, and the noise reduction bricks 2 are overlapped to form a triangular wavy surface.

[0045] A hardened base surface 15 is provided at the bottom of the sinking pit 1 .

[0046] Preferably, a rectangular concave pit is dug at the bottom of the sinking pit 1, and the concave pit is filled with rectangular blocks of reinforced concrete structure to form the hardened base surface 15.

[0047] A shock absorbing mechanism is fixedly arranged on the upper end of the hardened base surface 15 .

[0048] Specifically, the shock absorbing mechanism includes a bottom plate 7, a rubber pad 9 and a mounting plate 10. The bottom plate 7 is a steel plate, and the bottom plate 7 is fixedly mounted on the upper end of the hardened base surface 15. Preferably, through holes 13 are provided around the bottom plate 7, and a hole is provided on the hardened base surface 15. A positioning rod 14 is driven into the through hole 13, and the positioning rod 14 is inserted into the hole of the hardened base surface 15. A lower rubber groove 8 with a rectangular cross section is provided on the upper end surface of the bottom plate 7, and the rubber pad 9 is slidably sleeved in the lower rubber groove 8 up and down, and the rubber pad 9 cannot rotate or translate in the lower rubber groove 8. Preferably, the rubber pad 9 is a rubber pad 9. The mounting plate 10 is a steel plate, and the mounting plate 10 is arranged above the rubber pad 9. The lower end surface of the mounting plate 10 is provided with an upper glue groove 11 with the same cross-section as the lower glue groove 8. The number of the upper glue grooves 11 is the same as the number of the lower glue grooves 8 and they are aligned one by one. The mounting plate 10 is slid up and down on the rubber pad 9 through the upper glue groove 11. When the groove top of the upper glue groove 11 abuts against the top of the rubber pad 9, the lower end surface of the mounting plate 10 does not abut against the upper end surface of the bottom plate 7. Preferably, the distance between the lower end surface of the mounting plate 10 and the upper end surface of the bottom plate 7 is 1-2 cm.

[0049] Preferably, the number of the lower glue grooves 8 is at least nine, and the lower glue grooves 8 are evenly distributed on the upper end surface of the bottom plate 7 in a horizontal and vertical grid pattern. The plurality of lower glue grooves 8 are distributed in at least three rows, and the lower glue grooves 8 are distributed in at least three columns.

[0050] A crusher is arranged in the sinking pit 1 and is fixedly arranged above the shock absorbing mechanism.

[0051] Specifically, the crusher is a jaw crusher 6, and a plurality of mounting bolts 12 are provided on the upper end surface of the mounting plate 10, and the jaw crusher 6 is fixedly mounted on the mounting plate 10 by the mounting bolts 12. Alternatively, the jaw crusher 6 is welded to the mounting plate 10 by welding.

[0052] A material discharging component and a material loading component are also provided in the sinking pit 1. The upper end of the material discharging component extends above the ground outside the sinking pit 1, and the lower end of the material discharging component is connected to the feed port of the crusher.

[0053] Specifically, the unloading component can be a unloading conveyor belt or a spiral unloading channel 4.

[0054] When the unloading conveyor belt is used, one end of the unloading conveyor belt extends to the feed port of the crusher, and the other end of the unloading conveyor belt extends obliquely upward to above the ground outside the sinking pit 1.

[0055] Preferably, when a spiral feeding channel 4 is used, the feeding components include an inclined feed chute 16, a spiral feeding channel 4, an inclined discharge chute 17 and a support frame 5. The support frame 5 is fixed to the bottom of the sinking pit 1, and the spiral feeding channel 4 is fixed on the support frame 5. One end of the inclined feed chute 16 is connected to the entrance of the spiral feeding channel 4, and the other end of the inclined feed chute 16 extends obliquely upward to above the ground outside the sinking pit 1, and one end of the oblique discharge chute 17 is connected to the outlet of the spiral feeding channel 4, and the other end of the oblique discharge chute 17 extends obliquely downward to the feed port of the crusher.

[0056] The lower end of the feeding component is connected to the discharge port of the crusher, and the upper end of the feeding component extends to above the ground outside the sinking pit 1.

[0057] Specifically, the loading component is a lifting conveyor belt 3, one end of the lifting conveyor belt 3 extends below the discharge port of the crusher, and the other end of the lifting conveyor belt 3 extends obliquely upward to above the ground outside the sinking pit 1.

[0058] A pit top 18 which does not completely cover the top opening of the sinking pit 1 is also fixedly arranged directly above the crusher.

[0059] Preferably, the pit top 18 is a reinforced concrete structure.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sinking noise reduction stone crushing device, characterized in that: It includes a sinking pit 5-15 meters below the ground. A hardened base surface is provided at the bottom of the sinking pit. A shock-absorbing mechanism is fixedly provided on the upper end of the hardened base surface. A crusher is provided in the sinking pit. The crusher is fixedly provided above the shock-absorbing mechanism. A unloading component and a loading component are also provided in the sinking pit. The upper end of the unloading component extends to above the ground outside the sinking pit. The lower end of the unloading component is connected to the feed port of the crusher. The lower end of the loading component is connected to the discharge port of the crusher. The upper end of the loading component extends to above the ground outside the sinking pit. A pit top which does not completely cover the top opening of the sinking pit is also fixedly provided directly above the crusher.

2. A sinking noise reduction stone crushing device according to claim 1, characterized in that: Noise reduction bricks are also laid on the side pit walls of the sinking pit. The noise reduction bricks are fixedly laid upward from the pit bottom of the sinking pit along the side pit walls of the sinking pit in sequence to form a noise reduction wall.

3. The sinking noise reduction stone crushing device according to claim 2 is characterized in that: The side of the noise reduction wall facing the crusher is an uneven wall.

4. The sinking noise reduction stone crushing device according to claim 3 is characterized in that: The uneven wall surface is a wavy wall surface.

5. The sinking noise reduction stone crushing device according to claim 1, characterized in that: A rectangular pit is dug at the bottom of the sinking pit, and the pit is filled with rectangular hard blocks of reinforced concrete structure to form the hardened base surface.

6. The sinking noise reduction stone crushing device according to claim 5, characterized in that: The shock absorbing mechanism includes a bottom plate, a rubber pad and a mounting plate. The bottom plate is fixedly mounted on the upper end of the hardened base surface. A lower rubber groove is provided on the upper end surface of the bottom plate. The rubber pad is slidably sleeved in the lower rubber groove, and the rubber pad cannot rotate and translate in the lower rubber groove. The mounting plate is arranged above the rubber pad. An upper rubber groove with the same cross-section as the lower rubber groove is provided on the lower end surface of the mounting plate. The number of the upper rubber grooves is the same as the number of the lower rubber grooves and they are aligned one by one. The mounting plate is slidably sleeved on the rubber pad through the upper rubber groove. When the groove top of the upper rubber groove abuts against the top of the rubber pad, the lower end surface of the mounting plate does not abut against the upper end surface of the bottom plate.

7. The sinking noise reduction stone crushing device according to claim 6, characterized in that: The number of lower glue grooves is at least nine, and the lower glue grooves are evenly distributed on the upper end surface of the bottom plate in a horizontal and vertical grid shape. The multiple lower glue grooves are distributed in at least three rows and the multiple lower glue grooves are distributed in at least three columns.

8. The sinking noise reduction stone crushing device according to claim 1, characterized in that: The unloading component is a unloading conveyor belt, one end of which extends to the feed port of the crusher, and the other end of which extends obliquely upward to above the ground outside the sinking pit.

9. The sinking noise reduction stone crushing device according to claim 1, characterized in that: The material discharge components include an inclined feed chute, a spiral material discharge channel, an inclined discharge chute and a support frame. The support frame is fixed at the bottom of the sinking pit, and the spiral material discharge channel is fixed on the support frame. One end of the inclined feed chute is connected to the entrance of the spiral material discharge channel, and the other end of the inclined feed chute extends obliquely upward to above the ground outside the sinking pit. One end of the inclined discharge chute is connected to the outlet of the spiral material discharge channel, and the other end of the inclined discharge chute extends obliquely downward to the feed port of the crusher.

10. The sinking noise reduction stone crushing device according to claim 1, characterized in that: The feeding component is a lifting conveyor belt, one end of which extends below the discharge port of the crusher, and the other end of which extends obliquely upward to above the ground outside the sinking pit.

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