A raw coal dewatering device for underground coal mine transportation belt

Abstract

The utility model provides a kind of raw coal dewatering device for coal mine underground transport belt, including conveying belt, conveying belt includes upper conveying section and lower conveying section, the both sides of lower conveying section are provided with walking track, the upper of lower conveying section is provided with moving frame, the downside of moving frame is provided with walking wheel corresponding walking track, and the one end of moving frame close to upper conveying section is provided with standby chute, and coal belt is equipped on moving frame, the conveying direction of coal belt is same with lower conveying section, raw coal is by upper conveying section and enters lower conveying section through standby chute, or raw coal is conveyed to coal belt by upper conveying section, then is conveyed to lower conveying section by coal belt;Uniformly several gaps are equipped on coal belt;The middle part of moving frame is equipped with sludge water collecting groove, and sludge water collecting groove is connected with sedimentation tank.The raw coal dewatering device for coal mine underground transport belt can adjust dewatering procedure according to raw coal water content, and use mode is more flexible.

Description

Technical Field

[0001] This utility model relates to the field of coal mining, specifically to a raw coal dewatering device for underground coal mine conveyor belts. Background Technology

[0002] During coal mining, large amounts of water may flow into the raw coal, affecting transportation, reducing coal quality, and even causing conveyor belt burial and coal bunker collapse, threatening the lives of workers. To avoid these situations, raw coal usually needs to be dehydrated. Currently, there are many processes and equipment for raw coal dehydration, such as the dehydration device in the middle of a belt conveyor disclosed in Chinese patent CN219488796U and the dehydration device for an underground coal chute system disclosed in Chinese patent CN212673794U. However, during the use of these dehydration devices, the raw coal on the conveyor belt, regardless of its moisture content, directly enters the dehydration screen and other dehydration mechanisms for dehydration, making adjustments inconvenient.

[0003] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a raw coal dewatering device for underground coal mine conveyor belts.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A raw coal dewatering device for underground conveyor belts in coal mines includes a conveyor belt comprising an upper conveying section and a lower conveying section. Travel tracks are provided on both sides of the lower conveying section, and a movable frame is installed above the lower conveying section. Travel wheels are installed on the lower side of the movable frame corresponding to the travel tracks. A spare chute is provided at the end of the movable frame near the upper conveying section. A coal feeding belt is installed on the movable frame, with the conveying direction of the coal feeding belt being the same as that of the lower conveying section. Raw coal enters the lower conveying section from the upper conveying section via the spare chute, or raw coal is conveyed from the upper conveying section to the coal feeding belt and then conveyed to the lower conveying section by the coal feeding belt. Several gaps are evenly distributed on the coal feeding belt. A coal slurry water collection trough is provided in the middle of the movable frame, and the coal slurry water collection trough is connected to a sedimentation tank.

[0007] The mobile frame includes a base beam and two sets of mounting plates set on the upper side of the base beam. The two sets of mounting plates are symmetrically arranged, and each end of the base beam is equipped with a traveling wheel. The spare chute is fixedly connected to the mounting plate.

[0008] The coal feeding belt includes an annular belt set between two sets of mounting plates, several idlers and four sets of drums. The two ends of the idlers and drums are rotatably connected to the mounting plates. The annular belt surrounds the four sets of drums to form a trapezoidal structure that is narrow at the top and wide at the bottom. One of the drums is connected to the drive motor as the driving drum, and the other three drums are driven drums.

[0009] The top surface of the coal slurry water collection tank is open, and the width of the opening is adapted to the top surface of the trapezoidal structure. The bottom surface of the slurry water collection tank consists of several interconnected cones, and each cone has a drainage pipe at its lower end; each drainage pipe connects to the sedimentation tank.

[0010] The conveyor belt's conveying surface wraps around the unloading roller and the redirecting roller in a Z-shaped structure.

[0011] A support frame is installed in front of the mobile frame according to the conveyor belt's conveying direction. The support frame spans the conveyor belt, and a filter press is placed on the support frame. The filter press's feed inlet is connected to the sedimentation tank through a pipe, and the filter press's solid material outlet is connected to the lower conveying section.

[0012] Compared to existing technologies, the advantages of this invention are that it provides a raw coal dewatering device for underground coal conveyor belts, allowing for adjustments to the dewatering process based on the moisture content of the raw coal, thus offering greater flexibility in use. Specifically, in applications with high raw coal moisture content, the position of the feeding belt can be moved, allowing the moist raw coal from the conveyor belt section to fall onto the feeding belt. The coal slurry then flows from the gaps in the feeding belt into a coal slurry collection box, which then enters a sedimentation tank. Conversely, if the raw coal moisture content is low, the position of the feeding belt can be moved, allowing the raw coal from the conveyor belt section to pass through a spare chute into the next conveyor section for the next process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 .

[0014] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 .

[0015] Figure 3 This is a side view of the movable frame and the coal feeding belt in this utility model.

[0016] Figure 4 This is a partial structural schematic diagram of the annular armor belt in this utility model.

[0017] In the diagram: 1. Conveyor belt; 2. Unloading drum; 3. Redirecting drum; 4. Spare chute; 5. Traveling track; 6. Traveling wheel; 7. Idler roller; 8. Coal feed belt; 9. Driving drum; 10. Driven drum; 11. Drainage pipe; 12. Coal slurry water collection tank; 13. Sedimentation tank; 14. Filter press; 15. Annular belt; 16. Gap. Detailed Implementation

[0018] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. "Installed," "equipped with," and "connected" can employ conventional means in the prior art, such as integral installation, snap-fit ​​installation, welding connection, adhesive connection, bolted connection, etc. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances and select suitable connection, setting, or installation methods from the existing technology.

[0020] like Figure 1-4 As shown, a raw coal dewatering device for underground coal mine conveyor belts includes a conveyor belt 1, which comprises an upper conveying section and a lower conveying section. Walking tracks 5 are provided on both sides of the lower conveying section, and a movable frame is provided above the lower conveying section. Walking wheels 6 are provided on the lower side of the movable frame corresponding to the walking tracks 5. A spare chute 4 is provided at the end of the movable frame near the upper conveying section. A coal feeding axle 8 is provided on the movable frame, and the conveying direction of the coal feeding axle 8 is the same as that of the lower conveying section. Raw coal enters the lower conveying section from the upper conveying section via the spare chute 4, or raw coal is conveyed from the upper conveying section to the coal feeding axle 8, and then conveyed to the lower conveying section by the coal feeding axle 8. Several gaps 15 are evenly distributed on the coal feeding axle 8. A coal slurry water collection trough is provided in the middle of the movable frame, and the coal slurry water collection trough is connected to a sedimentation tank. Specifically, the coal feeding axle 8 has a similar structure to a conventional coal conveyor, the main difference being that the axle 8 has evenly distributed gaps to facilitate coal slurry water falling into the collection trough.

[0021] This raw coal dewatering device for underground coal mine conveyor belts can be adjusted according to the moisture content of the raw coal, making its use more flexible. In specific applications, if the raw coal has a high moisture content, the position of the feed belt can be moved, allowing the moist raw coal from the conveyor belt section to fall onto the feed belt. The coal slurry then falls through the gaps in the feed belt into the coal slurry collection box, and from there into the sedimentation tank. If the raw coal has a low moisture content, the position of the feed belt can be moved, allowing the raw coal from the conveyor belt section to enter the next conveyor section via a spare chute for the next process.

[0022] In one embodiment, the mobile frame includes a base beam and two sets of mounting plates disposed on the upper side of the base beam. The two sets of mounting plates are symmetrically arranged, and each end of the base beam is provided with a traveling wheel 6. A spare chute 4 is fixedly connected to the mounting plates, so that the spare chute moves along with the traveling wheels as they move along the traveling track. Specifically, the traveling track mainly includes a bracket and a linear rail fixed to the upper side of the bracket. The bracket is used to support the linear rail, so that the linear rail is slightly higher than the conveyor belt, which facilitates the movement of the mobile frame above the conveyor belt.

[0023] In one embodiment, the coal feeding belt 8 includes an annular belt 15 disposed between two sets of mounting plates, several idlers 7 and four sets of rollers. The two ends of the idlers 7 and rollers are rotatably connected to the mounting plates. The annular belt 15 surrounds the four sets of rollers to form a trapezoidal structure that is narrow at the top and wide at the bottom. One roller is connected to a drive motor as the driving roller 9, and the other three rollers are driven rollers 10.

[0024] In one embodiment, the top surface of the coal slurry water collection tank is open and the width of the opening is adapted to the top surface of the trapezoidal structure. The bottom surface of the slurry water collection tank is a number of interconnected cones, and each cone is provided with a drainage pipe 11 at its lower end. Each drainage pipe 11 is connected to the sedimentation tank 13, so that the coal slurry water can flow into the sedimentation tank for subsequent treatment.

[0025] In one embodiment, the conveyor surface of the conveyor belt 1 is arranged in a Z-shape around the unloading roller 2 and the redirecting roller 3.

[0026] In one embodiment, a support frame is installed in front of the movable frame, spanning the conveyor belt 1, in accordance with the conveying direction of the conveyor belt 1. A filter press 14 is placed on the support frame. The feed inlet of the filter press 14 is connected to the sedimentation tank 13 via a pipe, and the solid material outlet of the filter press 14 is connected to the lower conveying section, facilitating the entry of coal slurry into the filter press for treatment. The dry material obtained from the filter press enters the conveyor belt and flows into the next process. Specifically, the coal slurry in the sedimentation tank is pumped to the filter press by a slurry pump.

[0027] The above embodiments can be combined with each other.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A raw coal dewatering device for use with an underground coal mine haulage belt, characterised in that: The system includes a conveyor belt, which comprises an upper conveyor section and a lower conveyor section. The lower conveyor section has running tracks on both sides and a movable frame above it. Wheels are mounted on the lower side of the movable frame corresponding to the running tracks. A spare chute is located at the end of the movable frame near the upper conveyor section. A coal feeding belt is mounted on the movable frame, and the coal feeding belt has the same conveying direction as the lower conveyor section. Raw coal enters the lower conveyor section from the upper conveyor section via the spare chute, or raw coal is conveyed from the upper conveyor section to the coal feeding belt and then from the coal feeding belt to the lower conveyor section. Several evenly spaced gaps are provided on the coal feeding belt. A coal slurry collection trough is located in the middle of the movable frame and is connected to a sedimentation tank.

2. Raw coal dewatering device for underground coal mine transport belt according to claim 1, characterized in that: The mobile frame includes a base beam and two sets of mounting plates set on the upper side of the base beam. The two sets of mounting plates are symmetrically arranged, and the two ends of the base beam are respectively equipped with traveling wheels; the spare chute is fixedly connected to the mounting plates.

3. Raw coal dewatering device for underground coal mine transport belt according to claim 2, characterized in that: The coal feeding belt includes an annular belt set between two sets of mounting plates, several idlers and four sets of drums. The two ends of the idlers and drums are rotatably connected to the mounting plates. The annular belt surrounds the four sets of drums to form a trapezoidal structure that is narrow at the top and wide at the bottom. One of the drums is connected to the drive motor as the driving drum, and the other three drums are driven drums.

4. Raw coal dewatering device for underground coal mine transport belt according to claim 3, characterized in that: The top surface of the coal slurry water collection tank is open, and the width of the opening is adapted to the top surface of the trapezoidal structure. The bottom surface of the slurry water collection tank consists of several interconnected cones, and each cone has a drainage pipe at its lower end; each drainage pipe connects to the sedimentation tank.

5. The raw coal dewatering device for underground conveyor belts in coal mines according to claim 4, characterized in that: The conveyor belt's conveying surface wraps around the unloading roller and the redirecting roller in a Z-shaped structure.

6. The raw coal dewatering device for underground conveyor belts in coal mines according to claim 5, characterized in that: A support frame is installed in front of the mobile frame according to the conveyor belt's conveying direction. The support frame spans the conveyor belt, and a filter press is placed on the support frame. The filter press's feed inlet is connected to the sedimentation tank through a pipe, and the filter press's solid material outlet is connected to the lower conveying section.

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