A device for centrifugal dewatering of clean coal from jigging coal preparation

Abstract

The utility model discloses a kind of jigging coal clean coal centrifugal dewatering devices, including frame and the shell being installed on frame, the centrifugal dewatering mechanism is equipped in shell, shell bottom is equipped with rotary drying mechanism;Centrifugal dewatering mechanism includes feeding port, driving motor, driving shaft, transmission shaft, rotary disc, sieve basket, scraper rotor and distribution tray.The beneficial effects of the utility model are that, by being equipped with centrifugal dewatering mechanism in shell, distribution tray first evenly flings clean coal to sieve basket inner wall, under the action of centrifugal force, water flows into shell through sieve basket, and is discharged through drain, spiral scraper is scraped from sieve basket, falls into conveying pipeline, realizes continuous centrifugal dewatering processing, conveying pipeline can rotate drying treatment to clean coal, to reduce clean coal humidity.

Description

Technical Field

[0001] This utility model relates to the technical field of coal washing equipment, specifically a jigging coal preparation centrifugal dewatering device. Background Technology

[0002] Jigging is a gravity-based coal preparation method. Its core principle is that materials are separated and stratified based on their physical and mechanical properties (mainly density) in a medium dominated by vertical pulsation. In the specific process, the materials are continuously jigged on a fixed, moving screen surface. Under the combined action of flushing water, top water, and horizontal flow in the bed, separation is completed through the resultant force of vertical and horizontal flows.

[0003] The sorted clean coal has a high moisture content and requires dewatering. Existing patent application CN202322665555.5 discloses a centrifugal dewatering device for coal washing. This device uses a height adjustment mechanism to drive a distribution plate to evenly distribute the moist clean coal onto all areas of the inner wall of the spin-drying drum, effectively increasing the dewatering area during use. However, this device cannot achieve continuous centrifugal dewatering of the clean coal, has low dewatering efficiency, and the dewatered clean coal has a high moisture content, affecting subsequent processing. Utility Model Content

[0004] To address the above deficiencies, this utility model provides a jigging coal preparation centrifugal dewatering device to solve the problem of centrifugal dewatering of clean coal.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A centrifugal dewatering device for jigging coal preparation includes a frame and a housing mounted on the frame. The housing is equipped with a centrifugal dewatering mechanism and a rotating drying mechanism at the bottom of the housing.

[0007] The centrifugal dewatering mechanism includes a feeding port, a drive motor, a drive shaft, a transmission shaft, a rotating disc, a screen basket, a scraper rotor, and a distribution disc. The feeding port is located at the upper end of the housing. The drive motor is mounted on the right side of the frame with its rotating end facing vertically downwards. The drive shaft is mounted on the rotating end of the drive motor. The transmission shaft is movably mounted at the bottom of the housing. The rotating disc is mounted on the transmission shaft and is movably sealed inside the housing. The screen basket is mounted on the rotating disc. The scraper rotor is mounted at the center of the rotating disc, and the screen basket is fitted around the outside of the scraper rotor. The distribution disc is mounted on the top of the scraper rotor.

[0008] Furthermore, the rotary drying mechanism includes a conveying pipe, a conveying shaft, several spiral conveying blades, an arc-shaped electric heating plate, and a discharge port. The conveying pipe is installed at the bottom of the housing and is connected to the housing. The conveying shaft is movably inserted into the conveying pipe. Several spiral conveying blades are evenly installed on the conveying shaft. The arc-shaped electric heating plate is installed at the bottom of the conveying pipe. The discharge port is located on the left side of the bottom of the conveying pipe. The rotary drying mechanism can perform rotary drying treatment on clean coal to reduce its moisture content.

[0009] Furthermore, the bottom of the drive shaft is connected to the conveyor shaft via a set of bevel gears, thereby enabling the drive shaft and the conveyor shaft to drive each other.

[0010] Furthermore, the drive shaft and the transmission shaft are connected by a transmission belt, and the housing has a notch corresponding to the transmission belt to realize the transmission between the drive shaft and the transmission shaft.

[0011] Furthermore, the rotating disk has several evenly spaced discharge ports to facilitate the passage of refined coal through the rotating disk and its entry into the conveying pipeline.

[0012] Furthermore, the outer surface of the screen basket is provided with several screen bars, which are welded together by tie rods to facilitate centrifugal dewatering of the clean coal.

[0013] Furthermore, several spiral scrapers are evenly arranged on the outer surface of the scraper rotor to facilitate scraping the clean coal off the screen basket.

[0014] Furthermore, a drain outlet is provided on the left side of the shell to facilitate the discharge of water generated during the centrifugal dewatering process of the refined coal.

[0015] This utility model provides a centrifugal dewatering device for jigging coal preparation, which has the following beneficial effects: by setting a centrifugal dewatering mechanism inside the shell, the distribution plate first throws the clean coal evenly onto the inner wall of the screen basket. Under the action of centrifugal force, water flows into the shell through the screen basket and is discharged through the drain outlet. The spiral scraper scrapes the clean coal off the screen basket and into the conveying pipe, realizing continuous centrifugal dewatering treatment. The conveying pipe can rotate and dry the clean coal to reduce its moisture content. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a jigging coal preparation centrifugal dewatering device according to the present invention.

[0017] Figure 2 This is a schematic diagram of a jigging coal preparation centrifugal dewatering device according to the present invention.

[0018] Figure 3 This is a schematic diagram of a jigging coal preparation centrifugal dewatering device according to the present invention.

[0019] Figure 4 This is a schematic diagram of a jigging coal preparation centrifugal dewatering device according to the present invention.

[0020] Figure 5 This is a schematic diagram of a jigging coal preparation centrifugal dewatering device according to the present invention.

[0021] In the diagram: 1. Frame; 2. Shell; 3. Feed inlet; 4. Drive motor; 5. Drive shaft; 6. Transmission shaft; 7. Rotary disc; 8. Screen basket; 9. Scraper rotor; 10. Distribution disc; 11. Conveying pipe; 12. Conveying shaft; 13. Spiral conveyor blades; 14. Arc-shaped electric heating plate; 15. Discharge port; 16. Bevel gear; 17. Transmission belt; 18. Drop port; 19. Screen bar; 20. Tie bar; 21. Spiral scraper; 22. Drain outlet. Detailed Implementation

[0022] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0023] Please see Figures 1 to 5 As shown in the figure, this application provides a centrifugal dewatering device for jigging coal preparation, including a frame 1 and a housing 2 mounted on the frame 1. The housing 2 is equipped with a centrifugal dewatering mechanism, and the bottom of the housing 2 is equipped with a rotating drying mechanism. The centrifugal dewatering mechanism includes a feeding port 3, a drive motor 4, a drive shaft 5, a transmission shaft 6, a rotating disk 7, a screen basket 8, a scraper rotor 9, and a distribution disk 10. The feeding port 3 is located at the upper end of the housing 2. The drive motor 4 is mounted on the right side of the frame 1 with its rotating end facing vertically downward. The drive shaft 5 is mounted on the rotating end of the drive motor 4. The transmission shaft 6 is movably mounted at the bottom of the housing 2. The rotating disk 7 is mounted on the transmission shaft 6 and is movably sealed inside the housing 2. The screen basket 8 is mounted on the rotating disk 7. The scraper rotor 9 is mounted at the center of the rotating disk 7, and the screen basket 8 is fitted outside the scraper rotor 9. The distribution disk 10 is mounted on the top of the scraper rotor 9.

[0024] In this embodiment, during use, the drive motor 4 starts working, driving the transmission shaft 6 to rotate via the drive shaft 5, and driving the screen basket 8, scraper rotor 9, and distribution plate 10 to rotate via the rotating disk 7. The clean coal first falls onto the distribution plate 10 through the feeding port 3. The distribution plate 10 is conical and evenly throws the clean coal onto the inner wall of the screen basket 8. Under the action of centrifugal force, water flows into the shell 2 through the screen basket 8. The scraper rotor 9 can scrape the clean coal off the screen basket 8 and let it fall into the conveying pipe 11 through the distribution plate 10, thereby realizing continuous centrifugal dewatering treatment.

[0025] In some embodiments, the rotary drying mechanism includes a conveying pipe 11, a conveying shaft 12, a plurality of spiral conveying blades 13, an arc-shaped electric heating plate 14, and a discharge port 15. The conveying pipe 11 is installed at the bottom of the housing 2 and communicates with the housing 2. The conveying shaft 12 is movably inserted into the conveying pipe 11 through a fastening bearing. The plurality of spiral conveying blades 13 are evenly installed on the conveying shaft 12. The arc-shaped electric heating plate 14 is installed at the bottom of the conveying pipe 11. The discharge port 15 is opened on the left side of the bottom of the conveying pipe 11.

[0026] The drive motor 4 starts working, and drives the conveyor shaft 12 to rotate through the drive shaft 5. The conveyor shaft 12 drives the clean coal in the conveying pipe 11 to be evenly conveyed to the left through several spiral conveying blades 13. The arc-shaped electric heating plate 14 uses resistive material to convert electrical energy into heat energy to realize synchronous heating treatment of the clean coal to reduce the moisture of the clean coal. The heated clean coal is finally discharged through the discharge port 15.

[0027] In some embodiments, the bottom of the drive shaft 5 is connected to the conveyor shaft 12 via a set of bevel gears 16 to achieve transmission between the drive shaft 5 and the conveyor shaft 12.

[0028] In some embodiments, the drive shaft 5 and the transmission shaft 6 are connected by a transmission belt 17, and the housing 2 has a notch corresponding to the transmission belt 17 to realize the transmission between the drive shaft 5 and the transmission shaft 6.

[0029] In some embodiments, a plurality of material discharge ports 18 are evenly distributed on the rotating disk 7 to facilitate the passage of refined coal through the rotating disk 7.

[0030] In some embodiments, the outer surface of the screen basket 8 is provided with a plurality of screen bars 19, which are welded together by tie bars 20 to facilitate centrifugal dewatering of clean coal.

[0031] In some embodiments, a plurality of spiral scrapers 21 are uniformly arranged on the outer surface of the scraper rotor 9 to facilitate scraping clean coal off the screen basket 8.

[0032] In some embodiments, a drain outlet 22 is provided on the left side of the housing 2 to facilitate the discharge of water generated during the centrifugal dewatering process of clean coal.

[0033] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A jigging coal preparation centrifugal dewatering device, comprising a frame (1) and a housing (2) mounted on the frame (1), characterized in that, The shell (2) is equipped with a centrifugal dehydration mechanism, and the bottom of the shell (2) is equipped with a rotary drying mechanism; The centrifugal dewatering mechanism includes a feeding port (3), a drive motor (4), a drive shaft (5), a transmission shaft (6), a rotating disk (7), a sieve basket (8), a scraper rotor (9), and a distribution disk (10). The feeding port (3) is located at the upper end of the housing (2). The drive motor (4) is mounted on the right side of the frame (1), with its rotating end facing vertically downward. The drive shaft (5) is mounted on the rotating end of the drive motor (4). The transmission shaft (6) is movably mounted at the bottom of the housing (2). The rotating disk (7) is mounted on the transmission shaft (6) and is movably sealed inside the housing (2). The sieve basket (8) is mounted on the rotating disk (7). The scraper rotor (9) is mounted at the center of the rotating disk (7), and the sieve basket (8) is fitted around the outside of the scraper rotor (9). The distribution disk (10) is mounted on the top of the scraper rotor (9).

2. The jigging coal preparation centrifugal dewatering device according to claim 1, characterized in that, The rotating drying mechanism includes a conveying pipe (11), a conveying shaft (12), several spiral conveying blades (13), an arc-shaped electric heating plate (14), and a discharge port (15). The conveying pipe (11) is installed at the bottom of the housing (2) and is connected to the housing (2). The conveying shaft (12) is movably inserted into the conveying pipe (11). Several spiral conveying blades (13) are evenly installed on the conveying shaft (12). The arc-shaped electric heating plate (14) is installed at the bottom of the conveying pipe (11). The discharge port (15) is located on the left side of the bottom of the conveying pipe (11).

3. The jigging coal preparation centrifugal dewatering device according to claim 2, characterized in that, The bottom of the drive shaft (5) is connected to the conveyor shaft (12) via a set of bevel gears (16).

4. The jigging coal preparation centrifugal dewatering device according to claim 1, characterized in that, The drive shaft (5) and the transmission shaft (6) are connected by a transmission belt (17), and the housing (2) has a notch corresponding to the transmission belt (17).

5. The centrifugal dewatering device for jigging coal preparation according to claim 1, characterized in that, The rotating disk (7) has several material discharge ports (18) evenly distributed on it.

6. The jigging coal preparation centrifugal dewatering device according to claim 1, characterized in that, The outer surface of the sieve basket (8) is provided with a number of sieve bars (19), and the number of sieve bars (19) are welded together as a whole by tie bars (20).

7. The jigging coal preparation centrifugal dewatering device according to claim 1, characterized in that, The outer surface of the scraper rotor (9) is uniformly provided with a number of spiral scrapers (21).

8. A jigging coal preparation centrifugal dewatering device according to claim 1, characterized in that, The shell (2) has a drain outlet (22) on the left side.

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