Mining conveying chute
By introducing buffer blocks, spring structures, and rotating connections between the conveyor chute and the chute, the problems of easy damage and blockage in traditional chutes are solved, resulting in a longer service life and more efficient operation of the equipment, and improving the working environment.
Patent Information
- Application Number
- CN202511699278.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-19
- Publication Date
- 2026-02-06
AI Technical Summary
Traditional mining conveying chutes are easily damaged and clogged by the impact of large ores during the ore conveying process, resulting in shortened equipment life, high maintenance costs, and low production efficiency.
A mining conveying chute was designed, which uses a buffer block and spring structure to buffer the impact of ore. The chute is rotatably connected to the outer shell to prevent blockage. The channel design is optimized by dustproof plates and guide plates to reduce dust and material waste.
It effectively reduces wear on chute components, lowers maintenance costs, ensures the continuity and stability of ore conveying, improves production efficiency, and enhances the working environment.
Smart Images
Figure CN121470153A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of mineral mining and processing equipment technology, specifically a mining conveying chute. Background Technology
[0002] In the field of mineral mining and processing, conveying chutes are key equipment connecting various production stages. They are mainly used to transport materials such as ore and slag from higher levels to lower transport equipment or processing devices. Traditional mining conveying chutes mostly adopt an integrated rigid structure, consisting of an outer shell and fixed chute plates. They are simple in structure and low in manufacturing cost, and were widely used in early mineral production.
[0003] However, with the expansion of mineral mining scale and changes in ore grade, traditional conveying chutes have gradually revealed many technical defects. Firstly, impact wear is a prominent issue. During ore conveying, especially when large ores fall from the inlet bucket, they directly impact the chute's internal sluice plates or outer shell. Due to the lack of an effective buffer structure, rigid collisions generate enormous impact forces. After prolonged use, the sluice plate surface is prone to wear, deformation, and even cracking, not only shortening the chute's service life but also requiring frequent shutdowns to replace parts, increasing maintenance costs and the risk of production interruptions.
[0004] Secondly, ore blockage is frequent. Traditional sluices typically have a fixed angle of inclination, resulting in a constant flow channel. When large pieces of ore are mixed in or when the ore is too moist, causing it to clump, they easily accumulate and clog the channel formed by the sluice and the outer shell. Once a blockage occurs, manual cleaning is required, which is not only labor-intensive but may also cause subsequent processes to stall if not cleaned promptly, affecting overall production efficiency.
[0005] To address these issues, the industry has attempted to extend the service life of chutes by laying wear-resistant liners on their surfaces, but this has not solved the structural damage caused by impacts from large ore stones. Increasing the chute's tilt angle has also been tried to reduce blockages, but excessive tilting leads to excessively fast ore descent, exacerbating the impact on downstream equipment. Therefore, developing a mining conveying chute that combines buffering and anti-collision functions with anti-blockage capabilities, while also optimizing the operating environment, has become a pressing technical need in the field of mineral conveying equipment. Summary of the Invention
[0006] To address the shortcomings of existing technologies, this invention provides a mining conveying chute.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a mining conveying chute, comprising a shell, an inlet bucket, and a chute plate, wherein the inlet bucket is fixedly installed on the shell, the chute plate is disposed inside the shell, the chute plate is set in an inclined state, and the top end of the chute plate is located directly below the outlet of the inlet bucket, the top end of the chute plate is rotatably connected to the inner surface of the shell, and a second spring is fixedly installed between the lower surface of the chute plate and the inner bottom surface of the shell, the second spring being disposed at the bottom end of the chute plate;
[0008] The inlet hopper is equipped with a pair of buffer blocks, each with a buffer surface on its upper surface and a gap between them. The inlet hopper has a pair of channel openings, and one end of each buffer block extends to the outside of the inlet hopper through the two channel openings. An L-shaped connecting rod is fixedly installed on the slide plate at its bottom end. One end of each buffer block is slidably connected to one end of the L-shaped connecting rod, and an elastic element is fixedly installed between the two buffer blocks.
[0009] Preferably, a track plate is fixedly installed on one end of the L-shaped connecting rod, and a bent plate is fixedly installed on one end of each of the two buffer blocks. One end of the bent plate is slidably disposed inside the track plate, and an elastic element is fixedly installed between the two bent plates.
[0010] Preferably, a slider is fixedly installed inside the track plate, and one end of the slider passes through the interior of the two bent plates and is slidably connected to the two bent plates.
[0011] Preferably, both buffer blocks are set in an inclined state, and the bottom end of the buffer block is located inside the inlet hopper, with a gap between the bottom end of the buffer block and the inner surface of the inlet hopper.
[0012] Preferably, a plurality of blocking rods are fixedly installed on the inner surface of the inlet hopper, the plurality of blocking rods are distributed at equal intervals along the length of the inlet hopper, and the blocking rods are located at the bottom end of the buffer block.
[0013] Preferably, a dustproof plate is fixedly installed on the outer shell and directly above the slide, and a sliding channel is formed between the upper surface of the slide and the lower surface of the dustproof plate.
[0014] Preferably, a guide plate is fixedly installed at the top of the inlet hopper.
[0015] Preferably, the elastic force of the second spring is greater than the elastic force of the elastic element.
[0016] Compared with the prior art, the present invention provides a mine conveying chute, which has the following beneficial effects:
[0017] 1. Through the cooperation of the buffer block inside the inlet hopper and the first spring, when large ore falls and impacts the buffer surface, the buffer block moves in opposite directions to disperse the impact force, preventing the ore from directly impacting the chute body. At the same time, the second spring supports the chute plate, further absorbing the impact force transmitted to the chute plate and reducing wear and deformation. Compared with traditional rigid chutes, the component wear rate is reduced, the maintenance cycle is extended, and the equipment replacement and maintenance costs are significantly reduced;
[0018] 2. The rotating connection between the chute and the outer casing, along with the second spring, allows the chute to deflect and vibrate in response to the impact and accumulation pressure of the ore. The impact of the ore on the buffer block causes the chute to vibrate, preventing ore adhesion; as the accumulation pressure increases, the chute deflects, widening the downward flow channel and preventing blockage. No manual cleaning is required, reducing downtime, ensuring continuous and stable ore conveying, and improving overall production efficiency.
[0019] 3. The dustproof plate and chute on the outer shell form a closed downward channel, preventing dust from overflowing as the ore falls, thus improving dust pollution during operation and protecting the health of operators. The guide plate at the top of the inlet hopper guides the ore to enter accurately, preventing spillage. At the same time, the baffle rod guides small pieces of ore, reducing material accumulation and waste in the inlet hopper, improving material utilization and the cleanliness of the work site.
[0020] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Specific embodiments of the present invention are given in detail below with reference to the accompanying drawings. Attached Figure Description
[0021] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:
[0022] Figure 1 This is a schematic diagram of the external structure in this invention;
[0023] Figure 2 This is a schematic diagram of the internal structure of the present invention;
[0024] Figure 3 This is a schematic diagram of the disassembled structure of the buffer block and the track plate in this invention;
[0025] Figure 4 This is a schematic diagram of the internal structure of the inlet hopper in this invention.
[0026] In the diagram: 1. Outer shell; 2. Inlet hopper; 3. Slide plate; 4. Buffer block; 5. Buffer surface; 6. Track plate; 7. L-shaped connecting rod; 8. Slider; 9. Bending plate; 10. First spring; 11. Channel opening; 12. Guide plate; 13. Blocking rod; 14. Second spring; 15. Dustproof plate. Detailed Implementation
[0027] The following is in conjunction with the appendix Figures 1 to 4 The principles and features of the present invention are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of the invention. The invention is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.
[0028] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0030] Please combine Figures 1 to 4 As shown, the present invention discloses a mining conveying chute, which aims to solve the problems of traditional chutes being easily damaged by large ore impacts and the ore easily clogging the downward channel during the conveying of ore. The specific implementation method is as follows.
[0031] The mining conveying chute mainly includes a shell 1, an inlet hopper 2, and a chute 3. The inlet hopper 2 is fixedly installed on the shell 1 to receive the ore to be conveyed. The chute 3 is set inside the shell 1 to provide a downward channel for the ore. The chute 3 is set in an inclined state, and the top of the chute 3 is located directly below the outlet of the inlet hopper 2 to ensure that the ore discharged from the inlet hopper 2 can fall accurately onto the chute 3.
[0032] The top of the slide plate 3 is rotatably connected to the inner surface of the outer shell 1, so that the slide plate 3 can deflect around the top of the top at a certain angle. At the same time, a second spring 14 is fixedly installed between the lower surface of the slide plate 3 and the inner bottom surface of the outer shell 1. The second spring 14 is specifically located at the bottom end of the slide plate 3, providing an elastic force for the slide plate 3 to reset.
[0033] To provide initial cushioning for the falling ore, a pair of buffer blocks 4 are installed inside the inlet hopper 2. Each buffer block 4 has a buffer surface 5 on its upper surface, which disperses the impact force through contact with the ore. A gap is provided between the two buffer blocks 4 to allow the ore to pass through. Corresponding to the installation position of the buffer blocks 4, a pair of channel openings 11 are provided on the inlet hopper 2. One end of each buffer block 4 extends to the outside of the inlet hopper 2 through the two channel openings 11, connecting to external components.
[0034] An L-shaped connecting rod 7 is fixedly installed on the slide 3 at its bottom end. Two buffer blocks 4 extend to the outside of the inlet hopper 2 and are slidably connected to one end of the L-shaped connecting rod 7, allowing the movement of the buffer blocks 4 to drive the L-shaped connecting rod 7 to move synchronously. Simultaneously, an elastic element is fixedly installed between the two buffer blocks 4. In this embodiment, the elastic element is preferably a first spring 10, with both ends of the first spring 10 fixedly connected to the two buffer blocks 4 respectively. It should be noted that the elastic force of the second spring 14 is greater than that of the first spring 10, resulting in greater pressure on the slide 3. This prevents the second spring 14 from being constantly in a contracted state, thus preventing the slide 3 from repeatedly vibrating.
[0035] To ensure the stability of the sliding connection between the buffer block 4 and the L-shaped connecting rod 7, a track plate 6 is fixedly installed on one end of the L-shaped connecting rod 7, and a bent plate 9 is fixedly installed on one end of each of the two buffer blocks 4. One end of the bent plate 9 is slidably disposed inside the track plate 6. Furthermore, a slider 8 is fixedly installed inside the track plate 6. One end of the slider 8 passes through the interior of the two bent plates 9 and is slidably connected to the two bent plates 9. The slider 8 limits the sliding trajectory of the bent plates 9 to prevent the buffer block 4 from deviating during movement.
[0036] Both buffer blocks 4 are set in an inclined state, and the bottom end of the buffer block 4 is located inside the inlet hopper 2. A gap is set between the bottom end of the buffer block 4 and the inner surface of the inlet hopper 2 to allow some small pieces of ore to fall directly. To further optimize the falling path of the ore, multiple blocking rods 13 are fixedly installed on the inner surface of the inlet hopper 2. The multiple blocking rods 13 are evenly distributed along the length of the inlet hopper 2, and the blocking rods 13 are located at the bottom end of the buffer block 4.
[0037] In addition, a dustproof plate 15 is fixedly installed on the outer shell 1 and directly above the chute 3. A downward sliding channel is formed between the upper surface of the chute 3 and the lower surface of the dustproof plate 15. The dustproof plate 15 not only prevents dust from overflowing during the conveying of ore, but also limits the downward sliding range of the ore. A guide plate 12 is fixedly installed at the top of the inlet hopper 2 to guide the external ore to accurately enter the interior of the inlet hopper 2, thereby improving the feeding efficiency.
[0038] During the ore conveying process, the ore first enters the inlet hopper 2 through the guide plate 12, and then enters the downward channel formed by the chute 3 and the dustproof plate 15. The specific conveying process is as follows:
[0039] When larger pieces of ore fall, they impact the buffer surface 5 of the buffer block 4. Under the influence of gravity, the two buffer blocks 4 move in opposite directions against the elastic force of the first spring 10, thereby increasing the gap between the two buffer blocks 4. This allows the ore to pass smoothly through the gap and fall to the top of the chute 3. In this process, the two buffer blocks 4 can absorb most of the force of the falling ore, effectively preventing large pieces of ore from directly impacting the chute body and affecting its service life.
[0040] Smaller ores can fall directly onto the chute 3 from the gap between the two buffer blocks 4. Some ores will slide down the buffer block 4 to the stop bar 13, and then fall onto the chute 3 from the gap between the bottom of the buffer block 4 and the inner surface of the inlet hopper 2, thus achieving smooth conveying of small ores.
[0041] Because the buffer block 4 and the chute 3 are indirectly connected through components such as the L-shaped connecting rod 7 and the track plate 6, the impact force on the buffer block 4 is indirectly transmitted to the chute 3. After being subjected to the force, the chute 3 will deflect downwards around the rotational connection point between its top and the inner surface of the outer casing 1. When the ore leaves the buffer block 4, under the elastic force of the second spring 14, the chute 3 will move upwards again to reset. This process repeats, causing the chute 3 to continuously vibrate, thus preventing the ore from clogging the downward channel.
[0042] If a large amount of ore accumulates on chute 3, causing blockage of the downward channel, the pressure on chute 3 will be greater, and its downward rotation angle will increase accordingly. This will increase the space in the downward channel, significantly reducing the possibility of ore blockage. Furthermore, the force generated by each impact of a large ore on buffer block 4 will be proportional to the pressure on chute 3, further alleviating the blockage problem in the downward channel.
[0043] Through the above structural design and working mechanism, the mining conveying chute achieves buffer protection and anti-blockage conveying of ore, effectively improving the service life and operational stability of the chute.
[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Those skilled in the art can readily implement the present invention based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the present invention, utilizing the disclosed technical content, are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.
Claims
1. A mining conveying chute, comprising a shell (1), an inlet hopper (2), and a chute (3), wherein the inlet hopper (2) is fixedly installed on the shell (1), and the chute (3) is disposed inside the shell (1), the chute (3) is set in an inclined state, and the top of the chute (3) is located directly below the outlet of the inlet hopper (2), characterized in that: The top of the slide (3) is rotatably connected to the inner surface of the outer shell (1), and a second spring (14) is fixedly installed between the lower surface of the slide (3) and the inner bottom surface of the outer shell (1). The second spring (14) is located at the bottom end of the slide (3). The inlet hopper (2) is provided with a pair of buffer blocks (4), and the upper surfaces of the two buffer blocks (4) are provided with buffer surfaces (5). There is a gap between the two buffer blocks (4). The inlet hopper (2) is provided with a pair of channel openings (11). One end of the two buffer blocks (4) extends to the outside of the inlet hopper (2) through the two channel openings (11). An L-shaped connecting rod (7) is fixedly installed on the slide plate (3) at its bottom end. One end of the two buffer blocks (4) is slidably connected to one end of the L-shaped connecting rod (7), and an elastic element is fixedly installed between the two buffer blocks (4).
2. A mining conveying chute according to claim 1, characterized in that: A track plate (6) is fixedly installed on one end of the L-shaped connecting rod (7), and a bent plate (9) is fixedly installed on one end of each of the two buffer blocks (4). One end of the bent plate (9) is slidably disposed inside the track plate (6), and an elastic element is fixedly installed between the two bent plates (9).
3. A mining conveying chute according to claim 2, characterized in that: A slider (8) is fixedly installed inside the track plate (6). One end of the slider (8) passes through the interior of the two bent plates (9) and is slidably connected to the two bent plates (9).
4. A mining conveying chute according to claim 1, characterized in that: Both buffer blocks (4) are set in an inclined state, and the bottom end of the buffer block (4) is located inside the inlet hopper (2). A gap is provided between the bottom end of the buffer block (4) and the inner surface of the inlet hopper (2).
5. A mining conveying chute according to claim 4, characterized in that: Multiple blocking rods (13) are fixedly installed on the inner surface of the inlet bucket (2). The multiple blocking rods (13) are evenly distributed along the length of the inlet bucket (2), and the blocking rods (13) are located at the bottom of the buffer block (4).
6. A mining conveying chute according to claim 1, characterized in that: A dustproof plate (15) is fixedly installed on the outer shell (1) and directly above the slide plate (3), and a sliding channel is formed between the upper surface of the slide plate (3) and the lower surface of the dustproof plate (15).
7. A mining conveying chute according to claim 1, characterized in that: A guide plate (12) is fixedly installed at the top of the inlet bucket (2).
8. A mining conveying chute according to any one of claims 1-7, characterized in that: The elastic force of the second spring (14) is greater than the elastic force of the elastic element.