A rock breaking device for mining

Abstract

The utility model provides a kind of stone crushing equipment for mining, the utility model relates to stone crushing machinery technical field, including stone crushing pipe seat, stone crushing pipe seat is formed with stone crushing bin, and the both ends of stone crushing bin are provided with inlet and loading board frame through setting in stone crushing pipe seat end portion;The utility model has the beneficial effect that: on the basis of traditional impactor structure, the impact surface of entire plate hammer and rotor holder is protected by the built-in damping structure arranged at the butt joint end of rotor holder and plate hammer, and it is convenient to carry out modular disassembly and assembly, so as to ensure the rotation stability of entire rotor holder during high-strength stone crushing operation, and the single-path air duct structure is arranged along the inlet and outlet end in the structure, which can absorb the overflow dust along the inlet end with the built-in fan set, and discharge the collected dust through the outlet end, avoiding the influence of dust on the working environment, and improving the practicality of the stone crushing equipment.

Description

Technical Field

[0001] This utility model relates to the field of stone crushing machinery technology, and more specifically, to a stone crushing equipment used in mining. Background Technology

[0002] In mining operations, the crusher is the core equipment in the crushing and processing stage. Its function is to crush the large pieces of raw ore produced after blasting to meet the particle size requirements for subsequent grinding and beneficiation or direct use. Currently, the widely used traditional models mainly include jaw crushers based on the principle of compression crushing and impact crushers based on the principle of high-speed impact.

[0003] During the crushing process, the impact crusher generates dust that is easily stirred up and spills out as the stone moves violently within the bin, seriously affecting the working environment around the machine. At the same time, the wear rate of the hammer components in the structure is faster due to the impact with the stone, which can cause high-frequency vibration of the rotor during local impacts, accelerating wear and affecting the stability of the crushing operation to some extent. Utility Model Content

[0004] The technical problem to be solved by this utility model is that existing stone crushing equipment causes significant pollution to the working environment during use, and its stability during long-term high-load operation is difficult to guarantee. In view of the above problems, a stone crushing equipment for mining is provided.

[0005] The purpose and effect of this utility model are achieved by the following specific technical means: including a crushing pipe seat, in which a crushing chamber is formed, and both ends of the crushing chamber are provided with inlets and loading plates through to the ends of the crushing pipe seat;

[0006] The crushing pipe seat crushing chamber is rotatably fitted with a rotor frame, and multiple hammer plates are fixed on the rotor frame. The hammer plates are fitted with module plates, and the connection end between the module plates and the hammer plates is provided with a symmetrical hydraulic shaft and a support base plate. The module plates are formed with mortise and tenon grooves on their sides to limit the hammer plates.

[0007] The rotor frame is equipped with a pair of impact plates along the direction of the crushing chamber;

[0008] The feed inlet is equipped with a mesh hopper at the inner end near the crushed stone bin, and the loading plate is equipped with a hopper opening plate at the inner end near the crushed stone bin. A fan unit is installed through the mesh hopper and the hopper opening plate.

[0009] A further preferred embodiment: the inner diameter of the crushing chamber in the crushing pipe seat matches the rotation direction of the rotor frame, and the impact plate is positioned opposite to one end of the crushing chamber inlet.

[0010] A further preferred embodiment: a shaft column is fixedly installed between the outer end of the impact plate and the crushed stone pipe seat, and the shaft column is a pull rod structure that can be pulled out and adjusted.

[0011] A further preferred embodiment: the crushed stone tube seat is equipped with a bearing seat at the outer end of the rotor frame, and the bearing seat is a shaft disc structure with an internal V-belt.

[0012] A further preferred embodiment: the inner diameter of the mesh bucket and the bucket mouth plate is circumferentially distributed with plug holes that communicate with the fan unit, and an external pipe is inserted between the bucket mouth plate and the outer end of the crushed stone pipe seat.

[0013] A further preferred embodiment: the supporting substrate and the hammer are hard alloy substrates with angled flanges.

[0014] The beneficial effects of this utility model are:

[0015] This type of mining equipment uses a crushing machine. Based on the traditional impact crusher structure, it protects the impact surface of the entire hammer and rotor frame by setting an internal shock absorption structure at the joint end of the rotor frame and the hammer. It also facilitates modular disassembly and assembly, so as to ensure the rotational stability of the entire rotor frame during high-intensity crushing operations. In addition, the structure has a single-pass air duct structure along the inlet and outlet ends. With the built-in fan unit, it can absorb the overflowing dust at the inlet end and discharge and collect it at the outlet end, avoiding the impact of dust on the working environment and improving the practicality of the crushing equipment. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal planar structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the planar structure of the hammer plate of this utility model.

[0020] Figures 1-3 In the middle: 1. Crushed stone pipe seat, 2. Feed port, 3. Bearing seat, 4. Loading plate frame, 5. Rotor frame, 6. Impact plate, 7. Shaft column, 8. Hammer plate, 9. Fan unit, 10. Mesh bucket, 11. Bucket mouth plate, 12. External pipe, 13. Hydraulic shaft, 14. Module plate, 15. Support base plate. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the following description is provided in conjunction with the accompanying drawings. Figures 1-3The present invention will be further described in detail below with specific embodiments. The following embodiments are merely examples for implementing the present invention. It must be noted that the disclosed embodiments do not limit the scope of the present invention. On the contrary, any modifications and refinements made without departing from the scope of the present invention are within the patent protection scope of the present invention.

[0022] A stone crushing equipment for mining includes a stone crushing pipe seat 1, a stone crushing bin formed in the stone crushing pipe seat 1, and a feed inlet 2 and a loading plate frame 4 extending through both ends of the stone crushing bin to the end of the stone crushing pipe seat 1.

[0023] The crushing pipe seat 1 has a rotor frame 5 rotating in the crushing chamber, and multiple hammers 8 are fixed on the rotor frame 5. A module plate 14 is installed on the hammers 8, and a symmetrical hydraulic shaft 13 and a support base plate 15 are provided at the connection end between the module plate 14 and the hammers 8. The module plate 14 has a tenon and mortise groove formed on its side to limit the hammers 8.

[0024] A pair of impact plates 6 are fitted along the direction of the crushing chamber in the rotor frame 5;

[0025] A mesh hopper 10 is installed between the inlet 2 and the inner end of the crushing bin, and a hopper mouth plate 11 is installed between the loading plate frame 4 and the inner end of the crushing bin. A blower unit 9 is installed through the mesh hopper 10 and the hopper mouth plate 11.

[0026] This crushing equipment is based on the existing impact crusher structure principle. When the stone enters the crushing bin through the feed inlet 2, it is impacted by the high-speed rotating rotor frame 5 through the end module plate 14 of the hammer 8. During the process, the stone will be impacted onto the impact plate 6 by the centrifugal force of the rotor frame 5, and then crushed for a second time. The stone is crushed by the secondary impact and counter-impact. The crushed stone will fall into the bucket plate 11 with its own weight in the crushing bin and be discharged by the external loading plate frame 4.

[0027] During the process, the fan unit 9 can draw airflow in one direction along the inner diameter of the mesh bucket 10. The negative pressure generated by the suction will absorb the crushed stone dust that overflows to the end of the bucket mouth plate 11 and pass it directly to the side of the bucket mouth plate 11 through the internal pipe path. The dust that overflows to the outlet end can be separated by the airflow through the bucket mouth plate 11, thereby reducing dust and pollution to the working environment, and improving the practicality of the equipment.

[0028] Furthermore, the inner diameter of the crushing chamber in the crushing pipe seat 1 matches the rotation direction of the rotor frame 5, and the impact plate 6 is set at one end of the inlet of the crushing chamber. A shaft column 7 is fixed between the outer end of the impact plate 6 and the crushing pipe seat 1. The shaft column 7 is a pull-out adjustable rod structure. The position of the impact plate 6 is set based on the rotational impact direction of the rotor frame 5. The depth and impact resistance stroke of the impact plate 6 in the crushing chamber can be changed by pulling and adjusting the shaft column 7.

[0029] like Figure 1 , 2 As shown, the crushed stone pipe seat 1 is connected to a bearing seat 3 at the outer end of the rotor frame 5. The bearing seat 3 is a shaft disc structure with an internal V-belt. The rotor frame 5 is based on the belt drive principle. The rotor frame 5 is driven to rotate at high speed in the crushed stone pipe seat 1 by connecting a motor to the bearing seat 3 and using the V-belt drive.

[0030] Furthermore, the inner diameter of the mesh bucket 10 and the bucket mouth plate 11 is annularly distributed with plug holes that communicate with the fan unit 9, and an external pipe 12 is inserted between the bucket mouth plate 11 and the outer end of the crushed stone pipe seat 1. The dust removal pipeline can be connected through the external pipe 12 to discharge the overflowing stone dust into the dust removal pipeline for centralized treatment.

[0031] Furthermore, the support substrate 15 and the hammer 8 are hard alloy substrates with angled flanges, such as... Figure 3 As shown, the support base plate 15 and the hammer 8 support the two ends of the module plate 14 through an angular structure, preserving the local shear strength of the impact surface of the entire module plate 14. At the same time, the built-in hydraulic shaft 13 is used to buffer the force at the contact end between the module plate 14 and the hammer 8, thereby improving the impact resistance and stability of the entire hammer 8 structure.

[0032] During installation, the equipment is loaded onto the stone collection equipment via the loading plate frame 4, and the dust removal pipeline is connected via the external pipe 12.

[0033] During operation, after the stone enters the crushing bin through the feed inlet 2, it is impacted by the high-speed rotating rotor frame 5 through the end module plate 14 of the hammer 8. During the process, the stone will be impacted onto the impact plate 6 by the centrifugal force of the rotor frame 5 during rotation, and then crushed for a second time. The stone is crushed by the secondary impact and counter-impact. The crushed stone will fall into the bucket plate 11 with its own weight in the crushing bin and be discharged by the external loading plate frame 4.

[0034] During the process, the fan unit 9 can draw airflow in one direction along the inner diameter of the mesh bucket 10. The negative pressure generated by the suction will absorb the crushed stone dust that overflows to the end of the bucket mouth plate 11 and pass through the internal pipe path to the side of the bucket mouth plate 11. The dust that overflows to the outlet end can be separated by the airflow through the bucket mouth plate 11, thereby discharging the stone dust that overflows from the inside into the dust removal pipeline through the external pipe 12.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A stone crushing equipment for mining, characterized in that: Includes a crushed stone pipe seat (1), in which a crushed stone bin is formed, and at both ends of the crushed stone bin, a feed inlet (2) and a loading plate frame (4) are provided through to the end of the crushed stone pipe seat (1). The crushing pipe seat (1) has a rotor frame (5) rotatably fitted in the crushing chamber, and multiple hammer plates (8) are fixed on the rotor frame (5). A module plate (14) is installed on the hammer plate (8), and a symmetrical hydraulic shaft (13) and a support base plate (15) are provided at the connection end between the module plate (14) and the hammer plate (8). The module plate (14) has a tenon and mortise groove formed on its side to limit the hammer plate (8). The rotor frame (5) is provided with a pair of impact plates (6) along the direction of the crushing chamber; The feed inlet (2) is equipped with a mesh bucket (10) between the inner ends of the crushing bin and the inner ends of the loading plate frame (4) are equipped with a bucket mouth plate (11) between the inner ends of the crushing bin and the bucket mouth plate (11), and a fan unit (9) is provided through the mesh bucket (10) and the bucket mouth plate (11).

2. The crushing equipment for mining operations according to claim 1, characterized in that: The inner diameter of the crushing chamber in the crushing pipe seat (1) matches the rotation direction of the rotor frame (5), and the impact plate (6) is set at one end of the crushing chamber inlet.

3. The crushing equipment for mining operations according to claim 1, characterized in that: A shaft column (7) is fixedly installed between the outer end of the counter-attack plate (6) and the crushed stone pipe seat (1). The shaft column (7) is a pull rod structure that can be pulled out and adjusted.

4. A stone crushing equipment for mining according to claim 1, characterized in that: The crushed stone tube seat (1) is equipped with a bearing seat (3) at the outer end of the rotor frame (5). The bearing seat (3) is a shaft disc structure with an internal V-belt.

5. A stone crushing equipment for mining according to claim 1, characterized in that: The inner diameter of the mesh bucket (10) and the bucket mouth plate (11) is circumferentially distributed with plug holes that communicate with the fan unit (9), and an outer pipe (12) is inserted between the bucket mouth plate (11) and the outer end of the crushed stone pipe seat (1).

6. A crushing equipment for mining operations according to claim 1, characterized in that: The supporting substrate (15) and the hammer (8) are hard alloy substrates with angled flanges.

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