Coal bunker structure
By installing a conical cover and a water-guiding gap at the bottom of the coal bunker, the problem of water seepage in the coal bunker was solved, water was separated from the raw coal, and the coal quality and structural stability were improved.
Patent Information
- Application Number
- CN202423234343.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Water seepage from the coal bunker walls increases the moisture content of the raw coal, affecting coal quality and safe production.
A conical hood and a water-guiding gap are installed at the bottom of the coal bunker. The water-guiding gap is formed between the conical hood and the inner wall of the bottom of the coal bunker. Water flows into the guide pipe through the drain hole, realizing the separation of water and raw coal. The structure is reinforced with reinforced concrete and supporting beams to enhance the structural stability.
It effectively separates water from raw coal, avoids increasing the moisture content of raw coal, improves coal quality, enhances the stability and strength of the coal bunker structure, adapts to construction in confined spaces, and improves drainage effect.
Smart Images
Figure CN223619362U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal mining, and in particular to a coal bunker structure. Background Technology
[0002] A coal bunker is a storage silo underground used for the temporary storage of raw coal, gangue, and other materials. After the raw coal is mined, it is mostly transported to the top of the coal bunker by belt conveyor, and then conveyed to the feed inlet at the top of the coal bunker by conveying equipment for storage inside the coal bunker.
[0003] Raw coal in the coal bunker is conveyed to another belt conveyor via a coal feeder at the bottom of the bunker. Underground coal bunkers can evenly distribute coal flow, regulate the relationship between mining and transportation, provide a continuous and stable coal flow for the mine, and improve production efficiency. As a transfer point in the transportation process, coal bunkers are generally located at the bottom of the mine or at the connection between the mining area and the horizontal main roadway, and are arranged vertically, with a bunker height typically between 20 and 40 meters. In most cases, the coal bunker structure needs to pass through multiple geological strata.
[0004] When the silo passes through an aquifer, even with leak-proof and seepage-proof treatment on the silo walls, water from the surrounding rock fissures will still seep into the silo after long-term use, increasing the moisture content of the raw coal. This not only affects the coal quality but also easily causes water-coal cross-contamination, impacting safe production. Summary of the Invention
[0005] This invention addresses the problem of water seepage in coal bunker walls, which increases the moisture content of raw coal, by providing a coal bunker structure that allows for water drainage.
[0006] To solve the above problems, the technical solution adopted by this utility model is a coal bunker structure, including a lower opening of the coal bunker, the lower opening of the coal bunker including an inverted conical section, a conical cover provided in the lower opening of the coal bunker, a water-guiding gap formed between the conical cover and the inner wall of the lower opening of the coal bunker at a certain distance, the upper edge of the conical cover overlapping the inner wall of the lower opening of the coal bunker, and a drainage hole provided on the conical cover, and a guide pipe provided at the lower end of the lower opening of the coal bunker, the upper end of the guide pipe communicating with the water-guiding gap, and the lower end of the guide pipe located outside the lower opening of the coal bunker. This solution sets up a drainage structure at the lower opening of the coal bunker, water seeping into the coal bunker usually flows down the coal bunker, and when it reaches the conical cover, it flows into the drainage hole, and flows out in the water-guiding gap between the conical cover and the inner wall of the coal bunker, without entering the outlet of the raw coal, thus realizing the separation of water and raw coal and avoiding the increase of the moisture content of the raw coal.
[0007] As a preferred embodiment of the coal bunker structure, the lower opening of the coal bunker is a reinforced concrete structure, and multiple support beams are provided between the conical cover and the lower opening of the coal bunker, with parts of the support beams embedded in the concrete. The conical cover is supported by the support beams, thereby forming a water-guiding gap. The support beams are embedded in the concrete during pouring, forming an integral part with the coal bunker, resulting in a stable and high-strength overall structure.
[0008] As a preferred embodiment of a coal bunker structure, the conical cover includes multiple guide slides, which are fan-shaped and laid circumferentially along the lower opening of the coal bunker. The sides of adjacent guide slides are abutted against each other and fixedly connected. At least some of the guide slides have drainage holes. The conical cover adopts a splicing design and is constructed inside the coal bunker, making it more suitable for construction in the confined spaces of coal mines and coal bunkers.
[0009] As a preferred implementation of the coal bunker structure, the guide slide plate is bent into an arc shape in the circumferential direction of the fan. After splicing, the inner surface of the conical cover is smooth and without sharp edges, avoiding water droplet accumulation and improving the drainage effect.
[0010] As a preferred implementation of the coal bunker structure, the lower opening of the coal bunker further includes a cylindrical section, which is located above the inverted conical section. The upper edge of the conical cover extends upward relative to the connection between the cylindrical section and the inverted conical section and overlaps with the inner surface of the cylindrical section. The upper end of the conical cover is provided with a notch, which together with the inner surface of the cylindrical section forms the drainage hole.
[0011] As a preferred embodiment of the coal bunker structure, the support beam is arranged along the generatrix of the inverted conical section at the lower opening of the coal bunker and is located below the connection point of adjacent guide slides. The support beam supports the joint of the guide slides, and each guide slide has support beams on both sides, making the overall structure more stable and facilitating the connection between adjacent guide slides.
[0012] As a preferred implementation of the coal bunker structure, adjacent material guide slides are welded and fixed together along their abutting edges. The adjacent material guide slides are connected by edge welding, resulting in a long weld seam and a stable connection.
[0013] As can be seen from the above technical solutions, the advantages of this utility model are as follows: By setting a conical cover and water-guiding gap at the bottom of the coal bunker, the infiltrated water is effectively diverted to the guide pipe, achieving separation of water and raw coal, avoiding an increase in the moisture content of the raw coal, and improving the quality of the raw coal; the use of reinforced concrete structure and multiple support beams makes the conical cover and the bottom of the coal bunker integrated, enhancing the stability and strength of the overall structure; the splicing design of the conical cover facilitates construction in confined spaces and adapts to the installation requirements of coal mines, coal bunkers, and other similar locations. Furthermore, the arc-shaped design of the material guide slide plate improves the drainage effect, prevents water droplet accumulation, and ensures smooth water discharge; the setting of the support beams and the welding fixation between the material guide slide plate further enhance the stability of the structure; the optimized design of the cylindrical section and the notch makes the coal bunker structure more reasonable, the drainage effect better, and improves the overall performance of the coal bunker. Attached Figure Description
[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.
[0016] Figure 2 This is a three-dimensional cross-sectional view of the present invention.
[0017] Explanation of main figure symbols
[0018] 1. Material guide slide plate, 2. Support beam, 3. Water guide gap, 4. Drain hole, 5. Coal bunker bottom, 6. Guide pipe, 7. Weld. Detailed Implementation
[0019] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.
[0020] like Figure 1 , Figure 2 As shown, a coal bunker structure includes a lower opening 5, which comprises a cylindrical section and an inverted conical section. The cylindrical section is the connection part with the upper main body of the coal bunker, and the inverted conical section is located below the cylindrical section. A conical cover is provided in the lower opening 5, and a water-guiding gap 3 is formed between the conical cover and the inner wall of the lower opening 5 at a certain distance. Specifically, the lower opening 5 is a reinforced concrete structure. Multiple support beams 2 are provided between the conical cover and the lower opening 5. The support beams 2 are I-beams, and their lower parts are pre-embedded in the concrete during concrete pouring. After the concrete dries, the support beams 2 and the concrete layer of the lower opening of the coal bunker become an integral structure. The conical cover is mounted on the support beams 2, thereby forming the water-guiding gap 3. A guide pipe 6 is provided at the lower end of the lower opening 5. The upper end of the guide pipe 6 is connected to the water-guiding gap 3, and the lower end of the guide pipe 6 is located outside the lower opening 5.
[0021] In this embodiment, the conical cover includes multiple guide slide plates 1. Each guide slide plate 1 is fan-shaped, and the fan-shaped guide slide plate 1 is bent into an arc shape in the circumferential direction, thus forming a smooth conical surface after splicing. The multiple guide slide plates 1 are laid along the circumference of the lower opening 5 of the coal bunker. The side edges of adjacent guide slide plates 1 are abutted and fixedly connected, preferably by welding, i.e., adjacent guide slide plates 1 are welded and fixed together along their abutting edges. Figure 2 7 represents the weld. The upper edge of the conical shield (material guide slide) extends upwards relative to the connection between the cylindrical section and the inverted conical section, through... Figure 1 As can be seen, as the conical cover extends upward, its edge gets closer and closer to the cylindrical section, and eventually overlaps with the inner surface of the cylindrical section. Each guide slide plate 1 has a notch at its top edge, which together with the inner surface of the cylindrical section forms the drain hole 4. Water flowing down the inner wall of the coal bunker enters the water guiding gap 3 through the drain hole. In other embodiments, the drain hole can be opened on some of the guide slide plates 1 instead of all of them. In addition, the drain hole can also be set in other positions such as the middle and bottom of the guide slide plate 1.
[0022] Furthermore, the support beam 2 is arranged along the generatrix of the inverted conical section at the lower opening of the coal bunker, and is located below the connection point of the adjacent guide slide plate 1, thus... Figure 2 As shown, both sides of each guide slide plate 1 are supported on the connecting beam, making the fixation more stable.
[0023] As can be seen from the above embodiments, the beneficial effects of this utility model are as follows: by setting a conical cover and water-guiding gap at the bottom of the coal bunker, the infiltrated water is effectively diverted to the guiding pipe, achieving separation of water and raw coal, avoiding an increase in the moisture content of the raw coal, and improving the quality of the raw coal; the use of reinforced concrete structure and multiple support beams makes the conical cover and the bottom of the coal bunker integrated, enhancing the stability and strength of the overall structure; the splicing design of the conical cover facilitates construction in confined spaces and adapts to the installation requirements of coal mines, coal bunkers, and other similar locations. Furthermore, the arc-shaped design of the material guide slide plate improves the drainage effect, prevents water droplet accumulation, and ensures smooth water discharge; the setting of the support beams and the welding fixation between the material guide slide plate further enhance the stability of the structure; the optimized design of the cylindrical section and the notch makes the coal bunker structure more reasonable, the drainage effect better, and improves the overall performance of the coal bunker.
[0024] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A coal bunker structure, including a lower opening (5) of the coal bunker, characterized in that, The lower opening (5) of the coal bunker includes an inverted cone section. A conical cover is provided in the lower opening (5). A water-guiding gap (3) is formed between the conical cover and the inner wall of the lower opening (5) of the coal bunker at a certain distance. The upper edge of the conical cover overlaps with the inner wall of the lower opening (5) of the coal bunker. A drain hole (4) is provided on the conical cover. A guide pipe (6) is provided at the lower end of the lower opening (5) of the coal bunker. The upper end of the guide pipe (6) is connected to the water-guiding gap (3). The lower end of the guide pipe (6) is located outside the lower opening (5) of the coal bunker.
2. The coal bunker structure according to claim 1, characterized in that, The lower opening (5) of the coal bunker is a reinforced concrete structure. Multiple support beams (2) are provided between the conical cover and the lower opening (5) of the coal bunker, and the support beams (2) are partially embedded in the concrete.
3. The coal bunker structure according to claim 2, characterized in that, The conical cover includes multiple guide slides (1), which are fan-shaped. The multiple guide slides (1) are laid along the circumference of the lower opening (5) of the coal bunker. The sides of adjacent guide slides (1) are close to each other and fixedly connected. At least some of the guide slides (1) are provided with drainage holes.
4. The coal bunker structure according to claim 3, characterized in that, The guide slide (1) is bent into an arc shape in the circumferential direction of the fan.
5. The coal bunker structure according to claim 1, characterized in that, The lower opening (5) of the coal bunker also includes a cylindrical section, which is located above the inverted cone section. The upper edge of the conical cover extends upward relative to the connection between the cylindrical section and the inverted cone section and overlaps with the inner surface of the cylindrical section. The upper end of the conical cover is provided with a notch, which together with the inner surface of the cylindrical section forms the drain hole (4).
6. The coal bunker structure according to claim 3, characterized in that, The support beam (2) is set along the generatrix of the inverted cone section at the lower opening of the coal bunker and is located below the connection of the adjacent guide slide plate (1).
7. The coal bunker structure according to claim 3, characterized in that, The adjacent guide slides (1) are welded and fixed together along their abutting edges.