A decentralized crushing and continuous transport system for natural caving mining

Abstract

This utility model discloses a decentralized crushing and continuous transport system for natural caving mining, relating to the field of mining technology. It includes a crushing box, a feeding assembly disposed within a guide trough for buffering the ore as it falls into the crushing area during mining, and a crushing assembly disposed within a toothed ring groove for crushing the falling ore to the required particle size for transport. Through the combined action of elastic pads and springs, this utility model buffers the ore as it falls onto the guide plates and causes the guide plates to spring back to their original positions after the ore has fallen. The gaps between the returning guide plates are small, and the through-hole, with its height, prevents splashing of ore from the cylinder below during crushing. After the ore enters the cylinder, it is crushed by the rotating shaft driving the hammer body to rotate.

Description

Technical Field

[0001] This utility model relates to the field of mining technology, specifically to a decentralized crushing and continuous transportation system for natural caving mining. Background Technology

[0002] Rail transport involves a large number of transport channels and cross-channels, resulting in a large workload and long construction period, often becoming a factor restricting the shortening of the construction period. Under large-scale production, rail transport equipment is numerous, resulting in high equipment investment, inability to achieve continuous transport, and poor stability. Due to centralized crushing, each crusher needs to have a large capacity, so crusher maintenance and replacement have a significant impact on mine production capacity. At the same time, the crushing chamber is large in size, resulting in high support costs. As needed, each ore pass through the mining cross-channel requires the construction of mining area ore chutes, and the entire mining level requires the construction of a large number of mining area ore chutes, resulting in a large workload and difficult construction.

[0003] In existing mining operations, ore is directly fed into the crushing chamber via a feed hopper. Due to the lack of buffer equipment and the excessively large particle size of the ore before crushing, the high-speed descent into the crushing chamber will damage the inner wall of the crushing chamber and the breaker hammer, thus affecting the service life of the crushing chamber. Setting up a buffer zone before ore crushing can slow down the acceleration of the ore entering the crushing chamber, thereby reducing the damage to the inside of the crushing chamber when the ore falls into it before crushing. Therefore, a decentralized crushing continuous transport system for natural caving mining is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a decentralized crushing and continuous transportation system for natural caving mining to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a decentralized crushing and continuous transport system for natural caving mining, comprising: a crushing box,

[0006] The feeding assembly, located inside the guide channel, is used to buffer the ore as it falls into the crushing area during ore mining.

[0007] The crushing component, located inside the toothed ring groove, is used to crush the falling ore and bring it to the required particle size for transportation.

[0008] The feeding assembly includes a suspension column, which is located on both sides of the vertical part of the guide channel on the inner wall of the crushing box. One end of the suspension column is provided with a groove, and a clamping plate is connected to the inner side of the groove by a fixing rod. One end of the clamping plate is provided with a guide plate.

[0009] As a specific solution in this application, an elastic pad is provided at the bottom of the slope portion of the guide plate, and several springs are provided inside the elastic pad. The elastic pad is located on the slope portion of the guide channel.

[0010] As a specific solution in this application, the inner wall of the crushing box is provided with a guide groove and a toothed ring groove, the inner wall of the top of the crushing box is provided with a guide bucket, a through opening is provided between the guide groove and the toothed ring groove, the bottom of the crushing box is provided with a discharge port, and a belt conveyor is provided at the discharge port.

[0011] As a specific solution in this application, the crushing component includes a cylinder located in a toothed ring groove, with a rotating shaft on the inner wall of the cylinder and fixed shafts at both ends.

[0012] As a specific solution in this application, the outer wall of the rotating shaft is provided with several round rods, the other end of the round rods is provided with a hammer body, and several cones are provided on both sides of the hammer body.

[0013] As a specific solution in this application, the rotating shaft is connected to the output end of the drive motor, and the fixed shaft is connected to the output end of the swing motor.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This dispersed crushing continuous transport system for natural caving mining, with the combined action of elastic pads and springs, can buffer the ore as it falls onto the guide plates and cause the guide plates to spring back to their original positions after the ore has fallen. The gaps between the guide plates when they spring back to their original positions are small, and with the cooperation of the through-hole, the through-hole has a certain height, which can prevent the ore from splashing out when it is crushed in the cylinder below. After the ore enters the cylinder, it can be crushed when the rotating shaft drives the hammer body to rotate using a round rod. The crushed ore falls out of the round hole at the bottom of the cylinder during the oscillation process, and the cylinder can avoid blockage at the bottom during the oscillation process. The toothed ring groove can scrape the outer wall of the cylinder during the oscillation process. The cylinder setting can avoid secondary crushing of the ore. Attached Figure Description

[0016] Figure 1 This is an isometric view of the present invention;

[0017] Figure 2 This is a schematic diagram of the equiaxed side section of the present invention;

[0018] Figure 3 This is a front view of the cross-section of the crushing box of this utility model;

[0019] Figure 4This is a bottom view of the cross-sectional profile of the crushing box of this utility model;

[0020] Figure 5 This is a cross-sectional schematic diagram of the crushing component of this utility model;

[0021] Figure 6 This is a cross-sectional schematic diagram of the feeding assembly of this utility model;

[0022] Figure 7 This is a cross-sectional schematic diagram of the crushing box shell of this utility model.

[0023] In the diagram: 1. Crushing box; 101. Belt conveyor; 102. Guide bucket; 103. Guide trough; 104. Toothed ring groove; 105. Through port; 2. Feeding assembly; 201. Elastic pad; 202. Suspension column; 203. Clamping plate; 204. Fixed rod; 205. Guide plate; 206. Spring; 3. Crushing assembly; 301. Cylinder; 302. Hammer; 303. Round rod; 304. Cone; 305. Fixed shaft; 306. Rotating shaft. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only for descriptive distinction and should not be construed as indicating or implying relative importance. All electrical components mentioned in this document are electrically connected to an external main controller and 220V AC mains power, and the main controller can be a conventionally known device such as a computer that provides control.

[0026] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] like Figures 1-7As shown, this utility model provides a technical solution: a decentralized crushing and continuous transportation system for natural caving mining, including a crushing box 1. The crushing box 1 is characterized by its small size, high crushing efficiency, and strong adaptability, and can quickly crush large pieces of naturally caving ore into particle sizes suitable for subsequent transportation. The chamber where the crushing box 1 is located adopts an anchor mesh spray support method. This support method can effectively adapt to the complex geological conditions of the ore vein roadway and significantly reduce the support cost compared with traditional large crushing chambers. The feeding component 2 is set in the guide channel 103 to buffer the ore falling into the crushing area during ore mining. The crushing component 3 is set in the toothed ring groove 104 to crush the falling ore and make it reach the particle size required for transportation.

[0028] like Figure 1-7As shown in the embodiment of this application, the feeding assembly 2 includes a suspension column 202, which is located on both sides of the vertical portion of the guide channel 103 on the inner wall of the crushing box 1. One end of the suspension column 202 is provided with a groove, and a clamping plate 203 is connected to the inner side of the groove by a fixing rod 204. One end of the clamping plate 203 is provided with a guide plate 205, and an elastic pad 201 is provided at the bottom of the slope portion of the guide plate 205. Several springs 206 are provided inside the elastic pad 201. The elastic pad 201 is located on the slope portion of the guide channel 103. Specifically, under the combined action of the weight of the ore and the guide plate 205, the guide plate 205 can move towards the slope of the guide channel 103. During the movement of the guide plate 205, the elastic pad 201 will be compressed. This causes the guide plates 205 on both sides to open, allowing the ore to fall into the cylinder 301. After the ore has fallen, the guide plates 205 lose their compressive force, and the elastic force of the elastic pad 201 causes them to reset. When the guide plates 205 are in their normal state, the gap between the guide plates 205 on both sides tends to close, and the bottom of the inclined surface of the guide plates 205 contacts the outer surface of the elastic pad 201. The elastic pad 201 itself is elastic and will rebound to its original state when compressed. Furthermore, a spring 206 is added inside the elastic pad 201, which further improves the rebound performance of the elastic pad 201 with the help of the spring 206. When feeding ore, the width of the gap between the guide plates 205 is determined by the ore... Controlled by its own weight, and with the coordinated arrangement of the elastic pad 201 and spring 206, a certain buffer is generated during ore feeding, thereby reducing the speed at which the ore enters the cylinder 301. This prevents damage to the inner wall of the cylinder 301 or its internal components due to excessive speed when the ore falls directly into the cylinder 301. One end of the suspension column 202 is fixedly connected to the inner wall of the vertical part of the guide trough 103, and multiple suspension columns 202 are provided to accommodate the rotation of the large-sized guide plate 205. When the ore falls, it enters the area between the guide troughs 103 through the guide bucket 102 and contacts the surface of the guide plate 205. Under its own weight, the ore drives the guide plate 205 to rotate, guiding... When the material plate 205 rotates, it synchronously drives the clamping plate 203 on the back of the guide plate 205 to rotate around the fixed rod 204. The clamping plate 203 is fixedly connected to the guide plate 205 and is adapted to the suspension column 202. The clamping plate 203 and the suspension column 202 are connected through the fixed rod 204. When the guide plate 205 rotates, the slope of the guide plate 205 simultaneously squeezes the elastic pad 201. When the elastic pad 201 is squeezed by external force, it causes the spring 206 inside to deform. After the ore has fallen, under the elastic action of the spring 206 and the elastic pad 201, the guide plate 205 will be reset. After being reset, the guide plate 205 will block the ore in the cylinder 301 to prevent it from generating a large amount of splashing during the crushing process.

[0029] like Figure 1-7 As shown in the embodiments of this application, the inner wall of the crushing box 1 is provided with a guide channel 103 and a toothed ring groove 104, the inner wall of the top of the crushing box 1 is provided with a guide bucket 102, a through opening 105 is provided between the guide channel 103 and the toothed ring groove 104, and the bottom of the crushing box 1 is provided with a discharge port, at which a belt conveyor 101 is provided. Specifically, the bottom of the crushing box 1 is provided with a belt conveyor 101, which serves as a transport device to transfer the crushed ore to the main transport device. The main transport device can transfer the crushed ore to the outside, thereby realizing the direct and uninterrupted transport of ore from the mining area to the centralized transfer point or subsequent processing site, achieving the purpose of continuous transport. The guide channel 103 is used to accommodate the feed. Component 2, the guide bucket 102 is fixedly installed on the inner wall of the top of the crushing box 1. The guide bucket 102 has a certain slope to facilitate the falling of ore. The ore falling through the guide bucket 102 will land on the guide plate 205 and squeeze the guide plate 205. After being squeezed, the ore passes through the through hole 105 and continues to fall. The size of the through hole 105 is lower than the opening at the top of the cylinder 301, and the lengths of the guide plate 205, the through hole 105, and the opening at the top of the cylinder 301 are equal. The toothed ring groove 104 on the inner wall of the crushing box 1 can scrape the outer wall of the cylinder 301 during the swinging process, thereby preventing the crushed ore from clogging the round hole on the cylinder 301 and preventing it from affecting the discharge of the crushed ore.

[0030] like Figure 1-7As shown in the embodiment of this application, the crushing component 3 includes a cylinder 301 located within a toothed ring groove 104. A rotating shaft 306 is provided on the inner wall of the cylinder 301, with fixed shafts 305 at both ends. Several round rods 303 are provided on the outer wall of the rotating shaft 306, and a hammer body 302 is provided at the other end of each round rod 303. Several cones 304 are provided on both sides of the hammer body 302. The rotating shaft 306 is connected to the output end of a drive motor, and the fixed shafts 305 are connected to the output end of a swing motor. Specifically, the motors in this application are all connected to an external power supply and controlled by a control system. The drive motor drives the rotating shaft 306 to rotate, thereby enabling the hammer body 302 to rotate within the cylinder 301 via the round rods 303. The oscillating motor drives the cylinder 301 to oscillate via the fixed shaft 305. Both the fixed shaft 305 and the rotating shaft 306 are rotatably connected to the crushing box 1. During ore crushing, the ore falls into the cylinder 301. It is important to note that the rotational speed of the oscillating motor is less than that of the drive motor. If the rotational speed of the oscillating motor is equal to that of the drive motor, the oscillation speed of the cylinder 301 will be too fast. If the speed is too fast, the crushed ore may swirl freely inside the cylinder 301, allowing only ore fragments to fall. Therefore, the oscillation speed of the cylinder 301 is lower than that of the rotating shaft 306 to ensure that the ore falls through the circular hole at the bottom of the cylinder 301 during its oscillation. The size of the circular hole is adjusted according to the actual situation to ensure that the resulting ore particle size meets the requirements. Furthermore, the circular hole helps to isolate large particles of ore after the initial crushing within the cylinder 301. The ore undergoes secondary crushing inside the cylinder 301. After falling into the cylinder 301, the rotating hammer 302 rotates and hammers the ore, causing it to be crushed inside the cylinder 301. The qualified crushed ore falls out through the bottom of the cylinder 301 through the round hole, while the unqualified ore is isolated inside the cylinder 301 for further crushing. This ensures that only ore that meets the particle size requirements can be discharged, preventing large-sized ore from falling out of the cylinder 301 after the initial crushing and avoiding the need for secondary crushing. The cones 304 on both sides of the hammer 302 can further crush the ore inside the cylinder 301. The sharp tips of the cones 304 reduce the force required for ore crushing and improve the crushing efficiency. Furthermore, the swing motor and the drive motor do not interfere with each other, meaning that the swing motor and the drive motor can move synchronously.

[0031] like Figure 1-7As shown in the embodiment of this application, the ore falls from the guide bucket 102 into the crushing box 1. The weight of the ore itself compresses the guide plate 205. During the compression process, the guide plate 205 drives the elastic pad 201 to compress synchronously. The elastic pad 201 has resilience. With the combined action of the elastic pad 201 and the spring 206, it can help the guide plate 205 rebound and return to its original position. The guide plate 205 is supported and limited by the cooperation of the clamping plate 203 and the suspension column 202. The clamping plate 203 is rotatably set in the suspension column 202 through the fixing rod 204, which can adapt to the rotation of the guide plate 205 caused by the compression of the ore. After the ore compresses the guide plate 205, it passes through... The ore enters the cylinder 301 through the through-hole 105. Then, the drive motor drives the rotating shaft 306 to rotate. During the rotation of the rotating shaft 306, the round rod 303 synchronously drives the hammer body 302 to rotate inside the cylinder 301. During the rotation of the hammer body 302, the cones 304 on both sides of it crush the ore. During the crushing process, the swing motor synchronously drives the fixed shaft 305 to rotate. During the rotation of the fixed shaft 305, the cylinder 301 can swing, thereby shaking the ore inside the cylinder 301 to prevent it from accumulating and blocking at the bottom of the cylinder 301. The crushed ore falls through the round hole at the bottom of the cylinder 301 and is transported by the belt conveyor 101.

[0032] In summary, this utility model discloses a decentralized crushing and continuous transport system for natural caving mining, including a crushing box 1, a feeding assembly 2 disposed in a guide channel 103 for buffering the ore falling into the crushing area during mining, and a crushing assembly 3 disposed in a toothed ring groove 104 for crushing the falling ore to achieve the required particle size for transport. With the combined action of an elastic pad 201 and a spring 206, the system buffers the ore as it falls onto the guide plate 205 and causes the guide plate 205 to spring back to its original position after the ore has fallen. The gaps between the guide plates 205 that spring back to their original positions are relatively small. In conjunction with the through-hole 105, the through-hole 105 has a certain height, which can prevent the ore in the cylinder 301 below from splashing out when it is crushed. After the ore enters the cylinder 301, it can be crushed when the rotating shaft 306 drives the hammer body 302 to rotate using the round rod 303. The crushed ore falls from the round hole at the bottom of the cylinder 301 during the swinging process, and the bottom of the cylinder 301 can be prevented from being blocked during the swinging process. The toothed groove 104 can scrape the outer wall of the cylinder 301 during the swinging process. The setting of the cylinder 301 can avoid secondary crushing of the ore.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A natural draw mining method dispersion breakage continuous haulage system comprising: Crushing box, characterized in that: The feeding assembly, located inside the guide channel, is used to buffer the ore as it falls into the crushing area during ore mining. The crushing component, located inside the toothed ring groove, is used to crush the falling ore and bring it to the required particle size for transportation. The feeding assembly includes a suspension column, which is located on both sides of the vertical part of the guide channel on the inner wall of the crushing box. One end of the suspension column is provided with a groove, and a clamping plate is connected to the inner side of the groove by a fixing rod. One end of the clamping plate is provided with a guide plate.

2. A natural draw mining method dispersion and fragmentation continuous haulage system according to claim 1 characterised in that: An elastic pad is provided at the bottom of the slope of the guide plate, and several springs are installed inside the elastic pad. The elastic pad is located on the slope of the guide channel.

3. A natural draw mining method dispersion and fragmentation continuous haulage system according to claim 1 characterised in that: The inner wall of the crushing box is provided with a flow guide groove and a toothed ring groove, the inner wall of the top of the crushing box is provided with a flow guide bucket, a through opening is provided between the flow guide groove and the toothed ring groove, the bottom of the crushing box is provided with a discharge port, and a belt conveyor is provided at the discharge port.

4. A natural draw mining method dispersion and fragmentation continuous haulage system according to claim 1, characterised in that: The crushing component includes a cylinder located inside a toothed ring groove. A rotating shaft is provided on the inner wall of the cylinder, and fixed shafts are provided at both ends of the cylinder.

5. A natural draw mining method dispersion and fragmentation continuous haulage system according to claim 4, characterised in that: The outer wall of the rotating shaft is provided with several round rods, and the other end of the round rods is provided with a hammer body. Several cones are provided on both sides of the hammer body.

6. A natural draw mining method dispersion and fragmentation continuous haulage system as claimed in claim 5 wherein: The rotating shaft is connected to the output end of the drive motor, and the fixed shaft is connected to the output end of the swing motor.

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