A peach-shaped ore discharging opening for ore rock material dumping

Abstract

The utility model relates to the technical field of ore rock material unloading, disclose a peach shape ore mouth for ore rock material slide and put, including the chute, the chute and the installation frame, the chute is set to the peach shape of both sides symmetry, and the chute is inclined to the direction close to the chute, two discharge ends of the chute are connected with the lateral wall of the chute, the lateral wall of the chute is equipped with the feed port corresponding with the chute, the top of the chute is equipped with the material distribution ridge, the material distribution ridge sets up to be narrow in the top wide bottom, and the ore rock material is divided into two parts and enters to the two sides of the chute, the utility model divides the ore rock material into two streams through the material distribution ridge, and the two streams of material flow are guided to collide in the chute center through the symmetrically arranged peach shape chute, can actively, efficiently offset the horizontal component of material kinetic energy, make the material become approximately vertical falling, avoid the concentrated impact to the chute wall from the root, solve the inherent partial wear problem of traditional single side ore mouth.

Description

Technical Field

[0001] This utility model relates to the field of mineral and rock material unloading technology, specifically a peach-shaped unloading port for shunting mineral and rock materials. Background Technology

[0002] In the mining and transportation process, the ore pass, as a key facility connecting different mining levels and vertically transporting ore and rock materials, has a crucial structural stability and service life. Traditional unloading ports often adopt a single-sided arrangement, with ore and rock materials entering the ore pass from a single direction with a high initial velocity, and their trajectory has a significant horizontal component. This horizontal component, under the action of gravitational acceleration, causes the unloaded ore and rock to repeatedly impact the ore pass wall on one side. This one-sided impact mode leads to continuous and concentrated scouring and impacting of materials on specific areas of the ore pass wall, causing rapid wear of the lining and support structure in that area, and even damage, destruction, and collapse of the surrounding rock structure. Frequent maintenance and replacement not only pose high safety risks and have poor remediation effects, but also increase production and operating costs, and may even lead to mine shutdowns, resulting in huge economic losses.

[0003] Existing technologies employ methods such as installing buffer baffles below the unloading port, changing the chute inclination angle, or adding wear-resistant liners to the shaft wall. However, these methods have the following problems in practical use: they are mostly passive protection and fail to fundamentally eliminate the horizontal kinetic energy of the material; the buffer baffles themselves are easily damaged; and simply increasing the wear resistance of the liner significantly increases production and operating costs, resulting in unsatisfactory effects. Utility Model Content

[0004] The purpose of this invention is to provide a peach-shaped ore discharge port for ore and rock material chute, which has the effect of eliminating horizontal kinetic energy and effectively protecting the well wall.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a peach-shaped unloading port for ore and rock material discharge, comprising a ore pass, a chute, and an installation frame. The chute is configured as a peach shape with symmetrical sides and is inclined towards the ore pass. The two discharge ends of the chute are connected to the side walls of the ore pass. The side walls of the ore pass are provided with inlets corresponding to the chute. The top of the chute is provided with a dividing ridge, which is narrow at the top and wide at the bottom, and divides the ore and rock material into two parts that enter the two sides of the chute. The bottom of the installation frame is connected to the chute. The installation frame is installed at the discharge end of the ore discharge chamber. A filter grid is installed inside the installation frame.

[0006] A further feature of this invention is that the inner wall of the chute is fitted with a wear-resistant liner.

[0007] A further feature of this invention is that a transition chamber is fixedly provided at the top of the chute, a guide chamber is fixedly provided at the top of the transition chamber, the top of the guide chamber is fixedly connected to the bottom of the mounting frame, and the bottom of the mounting frame is provided with a discharge chute corresponding to the guide chamber.

[0008] A further feature of this invention is that an installation plate is fixedly provided on the top of the transition chamber, and the installation plate is connected to the bottom of the guide chamber by installation bolts.

[0009] A further feature of this invention is that a second mounting plate is fixedly provided on the top of the feed hopper, and the second mounting plate is connected to the bottom of the mounting frame by a second mounting bolt.

[0010] A further feature of this invention is that a mounting plate three is fixedly provided on the top of the mounting frame, and mounting holes are provided at all four corners of the mounting plate three.

[0011] A further feature of this invention is that a limiting frame is fixedly provided on the inner wall of the mounting frame, the filter media grid is installed on the top of the limiting frame, and the filter media grid is connected to the limiting frame by fixing bolts.

[0012] In summary, this utility model has the following beneficial effects: 1. The ore and rock materials are divided into two streams by the dividing ridge, and the two streams are guided to collide in the center of the ore pass by symmetrically arranged peach-shaped dividing chutes. This can actively and efficiently offset the horizontal component of the material's kinetic energy, so that the material falls almost vertically. This avoids concentrated impact on the ore pass wall from the source and solves the problem of uneven wear inherent in traditional single-sided unloading ports. 2. The wedge-shaped structure with a narrow top and wide bottom adopted by the material distribution ridge can ensure that the falling ore and rock materials are stably and evenly divided into two parts, effectively preventing the uneven distribution caused by the material deviating to one side, and ensuring the continuity and stability of the collision energy dissipation effect. 3. Wear-resistant liners are embedded in the inner wall of the chute to directly resist the scouring and wear of the material; at the same time, since the horizontal kinetic energy of the material is greatly eliminated, it also plays a fundamental role in protecting the chute wall. The dual protection mechanism significantly extends the service life of the unloading port system and the chute. 4. In terms of maintenance, compared with the well wall damage caused by traditional chute structures, the application of this structure avoids maintenance personnel from working in the dangerous cavities after the well wall collapses. Only the wear-resistant lining plates inside this structure need to be repaired, thereby improving the safety and convenience of well maintenance, while reducing the labor intensity of well repair and lowering the construction difficulty of well repair. Attached Figure Description

[0013] Figure 1 This is one of the structural schematic diagrams of this utility model; Figure 2 This is the second structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the structure of the filter grid and the mounting frame after separation. Figure 4 This is a cross-sectional structural diagram of the chute of this utility model; In the diagram: 1. Chute; 2. Dividing chute; 201. Dividing ridge; 3. Transition bin; 301. Mounting plate one; 302. Mounting bolt one; 4. Guide bin; 401. Mounting plate two; 402. Mounting bolt two; 5. Mounting frame; 501. Mounting plate three; 502. Mounting hole; 503. Limiting frame; 6. Filter media grid; 601. Fixing bolt. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings of the embodiments thereof.

[0015] Please see Figures 1-4 In this embodiment of the present invention, a peach-shaped ore discharge port for ore and rock material discharge includes a ore pass 1, a chute 2, a mounting frame 5, a material distribution ridge 201, and a filter grid 6. The ore discharge port, through the design of the peach-shaped chute 2 and the material distribution ridge 201, divides the ore and rock material into two parts, so that the two material flows collide in the ore pass 1, eliminating the horizontal component of kinetic energy, thereby reducing the impact and wear on the wall of the ore pass 1.

[0016] The chute 1 is a conventional mine chute structure with two symmetrical feed inlets on its sidewalls to receive ore and rock materials flowing out from the chute 2. The chute 2 is designed with a symmetrical peach-shaped structure on both sides, that is, from the top view, the chute 2 has a peach-shaped outline and is inclined towards the chute 1. The two discharge ends of the chute 2 are fixedly connected to the feed inlets on the sidewalls of the chute 1, and the connection method can be welding or bolting to ensure sealing and stability. The inclination angle of the chute 2 is preferably 30° to 60° to promote smooth material sliding and control the collision point to be located at the center of the chute 1.

[0017] The material distribution ridge 201 is fixed at the top of the chute 2, and has a wedge-shaped structure that is narrow at the top and wide at the bottom. The material distribution ridge 201 is arranged along the axis of symmetry of the chute 2. The material distribution ridge 201 is made of high-strength steel plate and the surface can be heat treated to improve wear resistance. When the ore material falls into the chute 2 from above, the material distribution ridge 201 divides the material into two parts roughly equally, and guides them to the two side channels of the chute 2 respectively. The wedge-shaped design of the material distribution ridge 201 ensures the uniformity of material division and avoids uneven loading.

[0018] The mounting frame 5 is a rectangular frame structure, welded from steel sections, and its bottom is connected to the top of the chute 2. The mounting frame 5 is installed at the discharge end of the unloading chamber and fixed to the chamber structure by the mounting plate 3 501 on its top. The four corners of the mounting plate 3 501 are provided with mounting holes 502. High-strength bolts are used to connect the mounting frame 5 to the embedded parts of the chamber through the mounting holes 502 to ensure overall stability.

[0019] The mounting frame 5 has a limiting frame 503 inside, which is welded to the inner wall of the mounting frame 5 to form a support platform; the filter grid 6 is placed on top of the limiting frame 503 and connected to the limiting frame 503 by fixing bolts 601; the filter grid 6 is composed of multiple parallel grid bars, and the function of the filter grid 6 is to filter out large pieces of material, prevent clogging of the chute 2, and distribute the material evenly.

[0020] To optimize material flow, a transition chamber 3 is fixedly provided at the top of the chute 2, and a guide chamber 4 is fixedly provided at the top of the transition chamber 3; the top of the guide chamber 4 is fixedly connected to the bottom of the mounting frame 5, and the bottom of the mounting frame 5 is provided with a discharge chute corresponding to the guide chamber 4, so that the material flows smoothly from the mounting frame 5 into the guide chamber 4.

[0021] The transition chamber 3 has a tapered shape, and its top is connected to the bottom of the guide chamber 4 via mounting plate 301 and mounting bolt 302. Mounting plate 301 is welded to the top of the transition chamber 3, and mounting bolt 302 is an anti-loosening bolt to ensure a firm connection.

[0022] The feed hopper 4 is funnel-shaped, and its top is connected to the bottom of the mounting frame 5 through mounting plate 2 401 and mounting bolt 2 402. Mounting plate 2 401 is welded to the top of feed hopper 4, and mounting bolt 2 402 also adopts an anti-loosening design.

[0023] The function of the transition bin 3 and the guide bin 4 is to guide the material smoothly from the mounting frame 5 into the chute 2, reducing material impact and splashing.

[0024] The inner wall of the chute 2 is fitted with wear-resistant liners. The wear-resistant liners are made of high manganese steel or rubber material and are fixed to the inner wall of the chute 2 by bolts or welding. The wear-resistant liners cover the entire flow path of the chute 2, including the side walls and bottom, to resist the wear of the ore and rock materials and extend the service life of the chute 2.

[0025] In operation, the ore material first falls from the unloading chamber into the installation frame 5. The filter screen 6 installed inside the installation frame 5 performs preliminary screening, intercepting large pieces exceeding the specified size above the screen, while materials meeting the particle size requirements fall evenly through the gaps in the screen bars. The material passing through the filter screen 6 then enters the guide bin 4, which acts as a transition channel, guiding the flow of the material and allowing it to smoothly enter the lower transition bin 3. The tapering structure of the transition bin 3 constricts the material flow, preparing for the subsequent diversion process. The material then enters the peach-shaped dividing chute 2. The wedge-shaped structure of the top dividing ridge 201 of the dividing chute 2 plays a crucial role here. When the material flow impacts the dividing ridge 201, it is naturally divided into two streams of roughly equal flow by its wedge-shaped surface, entering the left and right channels of the dividing chute 2 respectively. Because the dividing chute 2 is installed inclined towards the chute 1 and its inner wall is lined with a low-friction coefficient wear-resistant liner, the two material streams accelerate along the chute under the action of gravity. The inclination angle of chute 2 is carefully designed to ensure both the material flow velocity and the simultaneous arrival of the two material streams at the feed inlet of chute 1. When the two material streams exit from the two discharge ends of chute 2, due to the symmetrical arrangement of chute 2, they enter chute 1 with a basically symmetrical trajectory. The most critical phenomenon occurs in the central area of ​​chute 1: the two material streams collide head-on here, and the horizontal components of the material's kinetic energy cancel each other out during the collision, greatly reducing the impact force of the material on the side wall of chute 1. The collision causes the material's motion direction to change from predominantly horizontal to vertically downward, which conforms to the ideal stress state of chute 1. During the collision, some kinetic energy is converted into internal energy, further reducing the material's destructive power. After the collision, the material falls vertically along chute 1 at a relatively low speed, significantly reducing the impact and wear on the well wall. The wear-resistant lining plate on the inner wall of chute 2 effectively resists the scouring and wear of the material, extending the service life of the equipment.

[0026] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A peach-shaped ore discharge port for ore and rock material chute, comprising a chute (1), a distribution chute (2), and a mounting frame (5), characterized in that, The chute (2) is symmetrically peach-shaped on both sides and is inclined towards the chute (1). The two discharge ends of the chute (2) are connected to the side wall of the chute (1). The side wall of the chute (1) is provided with a feed inlet corresponding to the chute (2). The top of the chute (2) is provided with a dividing ridge (201). The dividing ridge (201) is narrow at the top and wide at the bottom, and divides the ore material into two parts to enter the two sides of the chute (2). The bottom of the mounting frame (5) is connected to the chute (2). The mounting frame (5) is installed at the discharge end of the copper unloading chamber. The interior of the mounting frame (5) is equipped with a filter grid (6).

2. The peach-shaped unloading port for ore and rock material chute according to claim 1, characterized in that: The inner wall of the chute (2) is fitted with a wear-resistant liner.

3. The peach-shaped unloading port for ore and rock material chute according to claim 1, characterized in that: The top of the chute (2) is fixedly provided with a transition chamber (3), the top of the transition chamber (3) is fixedly provided with a guide chamber (4), the top of the guide chamber (4) is fixedly connected to the bottom of the mounting frame (5), and the bottom of the mounting frame (5) is provided with a discharge chute corresponding to the guide chamber (4).

4. The peach-shaped unloading port for ore and rock material chute according to claim 3, characterized in that: The top of the transition chamber (3) is fixedly provided with an installation plate (301), which is connected to the bottom of the guide chamber (4) by an installation bolt (302).

5. The peach-shaped unloading port for ore and rock material chute according to claim 3, characterized in that: The top of the feed hopper (4) is fixedly provided with a second mounting plate (401), and the second mounting plate (401) is connected to the bottom of the mounting frame (5) by a second mounting bolt (402).

6. The peach-shaped unloading port for ore and rock material chute according to claim 1, characterized in that: The top of the mounting frame (5) is fixedly provided with mounting plate three (501), and mounting holes (502) are provided at the four corners of the mounting plate three (501).

7. The peach-shaped unloading port for ore and rock material chute according to claim 1, characterized in that: The inner wall of the mounting frame (5) is fixedly provided with a limiting frame (503), the filter material grid (6) is installed on the top of the limiting frame (503), and the filter material grid (6) is connected to the limiting frame (503) by fixing bolts (601).

Images