Crushing device for surface mine exploitation

Abstract

The utility model provides a crushing device for surface mine exploitation, which belongs to the technical field of mineral exploitation crushing and comprises a crushing box, a feeding cylinder and a discharging hopper, the feeding cylinder is arranged above the crushing box in a penetrating manner, the discharging hopper is fixedly arranged at the bottom of the crushing box, and a screen is fixedly arranged at the bottom of the inner side of the crushing box. A crushing assembly is mounted on the crushing box; ore enters the crushing box through the feeding barrel and falls onto the screen, the hydraulic cylinder is started, the hydraulic cylinder contracts to drive the penetrating frame to move towards the side close to the crushing box, the penetrating frame drives the two guide rods to move in the opposite directions, the guide rods drive the two crushing toothed plates to move in the opposite directions, and crushing is achieved. The effect of crushing ores on the screen is achieved, the two crushing toothed plates can be driven to move through the single hydraulic cylinder, more energy is saved, and due to the fact that the two crushing toothed plates are vertically arranged, the situation that the ores move upwards along the crushing toothed plates in the crushing process can be prevented, and the crushing effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of mineral mining and crushing, in particular to a crushing device used in open-pit mine development. Background Art

[0002] Open-pit mining is a mining method that removes the loose soil and surrounding rocks on the top of the ore body and its surroundings, transports the waste rock to the dump, and directly mines the ore from the exposed ore body. When the ore body is shallowly buried or there is an outcrop on the surface, open-pit mining is more advantageous than underground mining. The production of open-pit mining has the characteristics of seasonality, variability, openness and mobility. After mining the ore, open-pit mining usually needs to use a crushing device to crush the mined ore to facilitate the subsequent transportation of the ore.

[0003] In the prior art, a Chinese patent with a patent publication number of CN218796084U discloses a crushing device for open-pit mining, wherein the device places the ore to be crushed into a feed hopper, and the ore falls from the feed port into the crushing box, and is discharged from the discharge port after the ore is crushed by the crushing assembly. When the ore is added to the feed hopper, the ore pushes the first baffle plate to rotate downward under the action of gravity, so that the first baffle plate is stuck in the first groove. When the ore is continuously added to the feed hopper, the ore above will accumulate in the feed hopper, so that the ore fragments generated when the ore is crushed are blocked by the ore in the feed hopper. When the ore is not added to the feed hopper, the height of the ore in the feed hopper is lower than the end of the first groove close to the feed port, and the torsion spring pushes the first baffle plate out of the first groove, so that the first baffle plate abuts against the limit plate. At this time, the first baffle plate is blocked at the top of the feed hopper, and the fragments generated by the crushing assembly when crushing the ore are blocked in the feed hopper by the first baffle plate, which is safer to use.

[0004] The device crushes the ore through the cooperation of the first crushing tooth plate and the second crushing tooth plate. Since the second crushing tooth plate is inclined, the ore to be crushed is likely to move upward along the second crushing tooth plate, affecting the crushing effect. Although a drill is provided to crush the ore moving upward, the ore on the top of the second crushing tooth plate is crushed, and the ore below the second crushing tooth plate cannot be crushed, which easily leads to blockage of the discharge port and affects the normal crushing. Therefore, a crushing device for open-pit mining is designed to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problems existing in the above-mentioned background technology and proposes a crushing device for open-pit mining.

[0006] The technical problem to be solved by the utility model is to provide a crushing device for open-pit mining, which can prevent the blockage of the discharge port during crushing, and has good crushing effect and high practicability.

[0007] The technical problem to be solved by the utility model is to provide a crushing device for open-pit mining, comprising a crushing box, a feeding cylinder and a discharging hopper, wherein the feeding cylinder is arranged through the top of the crushing box, the discharging hopper is fixedly arranged at the bottom of the crushing box, a screen is fixedly arranged at the inner bottom of the crushing box, and a crushing assembly is installed on the crushing box;

[0008] The crushing assembly includes a guide sleeve, a guide rod, a hydraulic cylinder, a through frame and a crushing tooth plate. The left and right side surfaces of the crushing box are penetrated by guide sleeves, the guide rod is penetrated in the guide sleeve, the guide rod is located at the inner end of the crushing box and a crushing tooth plate is fixedly provided, the outer surface of the crushing box is fixedly provided with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly provided with a through frame, and the through frame penetrates the two guide rods.

[0009] Preferably, the penetration frame is in an inverted "V" shape, and two guide rods are penetrated by penetration grooves matching the penetration frame.

[0010] Preferably, when the hydraulic cylinder is extended and retracted to a minimum length, the two crushing tooth plates are in close contact with each other.

[0011] Preferably, the bottom level of the crushing tooth plate is equal to the upper surface level of the screen.

[0012] Preferably, the feed barrel comprises a first material guide plate and a second material guide plate, the first material guide plate is fixedly disposed on the right side surface of the feed barrel, and the second material guide plate is fixedly disposed at the center of the left side surface of the feed barrel.

[0013] Preferably, the first material guide plate is inclined toward the lower left, the second material guide plate is inclined toward the lower right, and the horizontal widths of the first material guide plate and the second material guide plate are smaller than the inner width of the feed barrel.

[0014] Preferably, the left end of the first material guide plate is located to the left of the right end of the second material guide plate.

[0015] Preferably, a material baffle plate is fixedly provided above the crushing tooth plate, and the material baffle plate is attached to the inner top of the crushing box.

[0016] Preferably, the width of the baffle plate is not less than 0.5 times the width of the feed barrel.

[0017] Preferably, when the hydraulic cylinder is extended and retracted to the maximum length, the side of the material blocking plate away from the crushing tooth plate is attached to the inner surface of the crushing box.

[0018] 1. The utility model is provided with a crushing assembly. When the ore is crushed, the ore enters the crushing box through the feed barrel and falls onto the screen. The hydraulic cylinder is turned on, and the hydraulic cylinder contracts to drive the through-frame to move to the side close to the crushing box. The through-frame drives the two guide rods to move in relative directions, so that the guide rods drive the two crushing tooth plates to move in relative directions, thereby achieving the effect of crushing the ore on the screen. The two crushing tooth plates can be driven to move by a single hydraulic cylinder, which is more energy-efficient. In addition, since the two crushing tooth plates are vertically arranged, the ore can be prevented from moving upward along the crushing tooth plates during the crushing process, thereby ensuring the crushing effect. The completely crushed ore passes through the screen and falls into the discharge hopper for discharge.

[0019] 2. The utility model is provided with a first guide plate and a second guide plate. The first guide plate can block the right side of the inside of the feed barrel, and the second guide plate can block the left side of the inside of the feed barrel, so that the first guide plate and the second guide plate can block the fragments splashed when the ore is crushed, thereby ensuring the safety of use. The second guide plate can block the ore between the two crushing tooth plates to prevent the ore between the two crushing tooth plates from moving upward during the crushing process, resulting in the crushing tooth plates being unable to completely crush the ore, thereby ensuring the crushing efficiency.

[0020] 3. The utility model is provided with a baffle plate. Since the baffle plate is attached to the inner top of the crushing box and the width of the baffle plate is not less than 0.5 times the width of the feed tube, when the two crushing tooth plates move relative to each other to crush the ore, the ore can be prevented from falling between the crushing tooth plates and the inner side of the crushing box, thereby ensuring normal crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0022] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model.

[0023] Figure 2 It is a cross-sectional structural diagram of the overall structure of the utility model.

[0024] Figure 3 It is a schematic cross-sectional view of the overall structure of the utility model.

[0025] Figure 4 This is a schematic diagram of the structure of the crushing component of the utility model when viewed from above.

[0026] [Reference Signs]

[0027] 1. Crushing box; 2. Feeding barrel; 201. First guide plate; 202. Second guide plate; 3. Discharge hopper; 4. Guide sleeve; 5. Guide rod; 6. Hydraulic cylinder; 7. Through frame; 8. Crushing tooth plate; 801. Baffle plate; 9. Screen. DETAILED DESCRIPTION Example

[0028] like Figure 1-Figure 4 As shown, the embodiment of the utility model provides a crushing device for open-pit mining, comprising a crushing box 1, a feed cylinder 2, and a discharge hopper 3. The feed cylinder 2 is arranged through the top of the crushing box 1, the discharge hopper 3 is fixedly arranged at the bottom of the crushing box 1, a screen 9 is fixedly arranged at the inner bottom of the crushing box 1, and a crushing assembly is installed on the crushing box 1;

[0029] The crushing assembly includes a guide sleeve 4, a guide rod 5, a hydraulic cylinder 6, a penetration frame 7 and a crushing tooth plate 8. The left and right side surfaces of the crushing box 1 are penetrated by the guide sleeve 4, the guide rod 5 is penetrated by the guide sleeve 4, the guide rod 5 is located at the inner end of the crushing box 1 and a crushing tooth plate 8 is fixedly provided, the outer surface of the crushing box 1 is fixedly provided with a hydraulic cylinder 6, the output end of the hydraulic cylinder 6 is fixedly provided with a penetration frame 7, and the penetration frame 7 penetrates the two guide rods 5.

[0030] During actual use, by providing a crushing assembly, when the ore is crushed, the ore enters the crushing box 1 through the feed barrel 2 and falls onto the screen 9, the hydraulic cylinder 6 is turned on, and the hydraulic cylinder 6 contracts to drive the through-frame 7 to move to the side close to the crushing box 1, and the through-frame 7 drives the two guide rods 5 to move in relative directions, so that the guide rods 5 drive the two crushing tooth plates 8 to move in relative directions, thereby achieving the effect of crushing the ore on the screen 9. The two crushing tooth plates 8 can be driven to move by a single hydraulic cylinder 6, which is more energy-efficient. Moreover, since the two crushing tooth plates 8 are vertically arranged, the ore can be prevented from moving upward along the crushing tooth plates 8 during the crushing process, thereby ensuring the crushing effect, and the completely crushed ore passes through the screen and falls to the discharge hopper 3 for discharge.

[0031] In this embodiment, the penetration frame 7 is in an inverted "V" shape, and the two guide rods 5 are penetrated by a penetration groove matching the penetration frame 7, so that the penetration frame 7 can drive the two guide rods 5 to move left and right.

[0032] In this embodiment, when the hydraulic cylinder 6 is extended to the minimum length, the two crushing tooth plates 8 are close to each other, so that the two crushing tooth plates 8 can cooperate to crush the ore above the screen.

[0033] In this embodiment, the bottom level of the crushing tooth plate 8 is equal to the upper surface level of the screen 9, so that the two crushing tooth plates 8 can cooperate to crush the ore above the screen.

[0034] In this embodiment, the feed barrel 2 includes a first material guide plate 201 and a second material guide plate 202 . The first material guide plate 201 is fixedly disposed on the right surface of the feed barrel 2 , and the second material guide plate 202 is fixedly disposed in the center of the left surface of the feed barrel 2 .

[0035] In this embodiment, the first guide plate 201 is tilted toward the lower left, and the second guide plate 202 is tilted toward the lower right. The horizontal width of the first guide plate 201 and the second guide plate 202 is smaller than the internal width of the feed barrel 2, so as to prevent ore from accumulating on the first guide plate 201 and the second guide plate 202 and ensure smooth feeding.

[0036] In this embodiment, the left end of the first guide plate 201 is located to the left of the right end of the second guide plate 202, so that the first guide plate 201 cooperates with the second guide plate 202 to block the fragments splashed when the ore is crushed, thereby ensuring safety in use.

[0037] By providing a first guide plate 201 and a second guide plate 202, the first guide plate 201 can block the right side of the inside of the feed barrel 2, and the second guide plate 202 can block the left side of the inside of the feed barrel 2, so that the first guide plate 201 and the second guide plate 202 can block the fragments splashed when the ore is crushed, thereby ensuring safety of use, and the second guide plate 202 can block the ore between the two crushing tooth plates 8 to prevent the ore between the two crushing tooth plates 8 from moving upward during the crushing process, resulting in the crushing tooth plates 8 being unable to completely crush the ore, thereby ensuring crushing efficiency.

[0038] In this embodiment, a material baffle plate 801 is fixedly provided above the crushing tooth plate 8 , and the material baffle plate 801 is attached to the inner top of the crushing box 1 .

[0039] In this embodiment, the width of the baffle plate 801 is not less than 0.5 times the width of the feed barrel 2, so that when the two crushing tooth plates 8 are close to each other, the baffle plate 801 blocks the feed barrel 2 to prevent the ore entering the feed barrel 2 from falling between the crushing tooth plates 8 and the inner side of the crushing box 1, thereby ensuring normal crushing.

[0040] In this embodiment, when the hydraulic cylinder 6 is extended to the maximum length, the side of the material blocking plate 801 away from the crushing tooth plate 8 is attached to the inner surface of the crushing box 1 to prevent the material blocking plate 801 from causing damage to the crushing box 1.

[0041] By providing a baffle plate 801, since the baffle plate 801 is attached to the inner top of the crushing box 1, and the width of the baffle plate 801 is not less than 0.5 times the width of the feed tube 2, when the two crushing tooth plates 8 move relative to each other to crush the ore, the ore can be prevented from falling between the crushing tooth plates 8 and the inner side of the crushing box 1, thereby ensuring normal crushing, and the baffle plate 801 will not cause damage to the crushing box 1, thereby ensuring the service life of the crushing box 1.

[0042] The above are only preferred implementations of the utility model. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model. These should also be regarded as the protection scope of the utility model. These will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A crushing device for open-pit mining, comprising a crushing box (1), a feed cylinder (2), and a discharge hopper (3), wherein the feed cylinder (2) is disposed through the top of the crushing box (1), the discharge hopper (3) is fixedly disposed at the bottom of the crushing box (1), and a screen (9) is fixedly disposed at the inner bottom of the crushing box (1), characterized in that: The crushing box (1) is equipped with a crushing assembly; The crushing assembly comprises a guide sleeve (4), a guide rod (5), a hydraulic cylinder (6), a penetration frame (7) and a crushing tooth plate (8). The left and right side surfaces of the crushing box (1) are penetrated by the guide sleeve (4), the guide rod (5) is penetrated in the guide sleeve (4), the crushing tooth plate (8) is fixedly arranged on the inner end of the guide rod (5) located in the crushing box (1), the hydraulic cylinder (6) is fixedly arranged on the outer surface of the crushing box (1), and the output end of the hydraulic cylinder (6) is fixedly arranged with a penetration frame (7), and the penetration frame (7) penetrates the two guide rods (5).

2. The crushing device for open-pit mining according to claim 1 is characterized in that: The penetration frame (7) is in an inverted "V" shape, and the two guide rods (5) are penetrated by penetration grooves matching the penetration frame (7).

3. The crushing device for open-pit mining according to claim 2 is characterized in that: When the hydraulic cylinder (6) is extended or retracted to a minimum length, the two crushing tooth plates (8) are in close contact with each other.

4. The crushing device for open-pit mining according to claim 3 is characterized by: The bottom level of the crushing tooth plate (8) is equal to the upper surface level of the screen (9).

5. The crushing device for open-pit mining according to claim 1, characterized in that: The feed barrel (2) comprises a first material guide plate (201) and a second material guide plate (202); the first material guide plate (201) is fixedly arranged on the right side surface of the feed barrel (2), and the second material guide plate (202) is fixedly arranged in the center of the left side surface of the feed barrel (2).

6. The crushing device for open-pit mining according to claim 5, characterized in that: The first material guide plate (201) is arranged to be inclined toward the lower left, and the second material guide plate (202) is arranged to be inclined toward the lower right, and the horizontal width of the first material guide plate (201) and the second material guide plate (202) is smaller than the internal width of the feed barrel (2).

7. The crushing device for open-pit mining according to claim 5, characterized in that: The left end of the first material guide plate (201) is located to the left of the right end of the second material guide plate (202).

8. The crushing device for open-pit mining according to claim 1, characterized in that: A material baffle plate (801) is fixedly arranged above the crushing tooth plate (8), and the material baffle plate (801) is attached to the inner top of the crushing box (1).

9. The crushing device for open-pit mining according to claim 8, characterized in that: The width of the material baffle plate (801) is not less than 0.5 times the width of the feed barrel (2).

10. The crushing device for open-pit mining according to claim 9, characterized in that: When the hydraulic cylinder (6) is extended to its maximum length, the side of the material blocking plate (801) away from the crushing tooth plate (8) is attached to the inner surface of the crushing box (1).

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