Coal floating and sinking separation device

Abstract

The present invention relates to the technical field of coal floating and sinking experiments, and discloses a coal floating and sinking separation device, including a separation box, a door assembly, a partition and a scraper. A separation chamber is provided in the separation box, and a separation outlet is provided on the side wall of the separation chamber; the door assembly can open or close the separation outlet; the partition is located below the separation outlet, and the partition can slide into or out of the separation chamber in a horizontal direction, and after the partition extends into the separation chamber, the separation chamber can be divided into an upper separation chamber connected to the separation outlet and a lower separation chamber isolated from the separation outlet; the scraper slides on the partition and the scraper can approach or move away from the separation outlet. The heavy liquid at a certain depth is isolated by the partition, and the revolving door of the separation device is opened. A part of the heavy liquid and floating coal remaining above the partition will flow out of the revolving door, and the floating coal and heavy liquid falling on the partition will be pushed out of the revolving door by the scraper, thereby realizing the function of automatic separation of floating coal in the floating and sinking experiment, which can replace manual labor and avoid errors caused by manual experiments.

Description

Technical Field

[0001] The invention relates to the technical field of coal floating and sinking experiments, in particular to a coal floating and sinking separation device. Background Art

[0002] The coal floating and sinking experiment is an important indicator for testing coal quality. The experiment requires a variety of heavy liquids with different densities to float and separate the coal. Therefore, it is necessary to add heavy liquids of various densities into the floating and sinking separation device and recycle them.

[0003] At present, the research on coal floating and sinking experimental equipment includes using robotic arms or three-coordinate machines to simulate human movements to pick up floating coal, and also opening valves on the containers to separate floating coal by overflow. However, more people use manual methods to pick up floating coal in containers of various density levels.

[0004] Although floating coal can be separated by using a robotic arm and a three-coordinate machine, their manufacturing cost is too high. Due to the harsh operating environment, the subsequent failure rate will also be high and maintenance is difficult. The separation of floating coal is achieved by opening a hole next to the container and opening a valve. This method does not completely separate the floating coal and requires many separations to achieve the experimental effect, which is inefficient. Summary of the invention

[0005] The present invention provides a coal floating and sinking separation device, which solves the problem of incomplete separation of floating coal by overflow method in the prior art.

[0006] The technical solution of the present invention is implemented as follows: a coal floating and sinking separation device, comprising

[0007] A separation box, wherein a separation chamber is provided in the separation box, and a separation outlet is provided on a side wall of the separation chamber;

[0008] A door assembly, wherein the door assembly can open or close the separation outlet;

[0009] a partition, the partition being located below the separation outlet, the partition being able to slide into or out of the separation chamber in a horizontal direction, and being able to separate the separation chamber into an upper separation chamber connected to the separation outlet and a lower separation chamber isolated from the separation outlet after the partition is extended into the separation chamber;

[0010] and a scraper, the scraper slides on the partition and the scraper can approach or move away from the separation outlet.

[0011] As a preferred technical solution, the separation outlet is located at the upper end of the separation box, and the separation box is provided with a partition accommodating groove. The partition accommodating groove and the separation outlet are respectively located on opposite side walls of the separation box, and the partition and the scraper are both located in the partition accommodating groove.

[0012] As a preferred technical solution, a cylinder connecting plate is fixed on the side wall of the partition accommodating groove opposite to the separation outlet, and a scraper cylinder and a partition cylinder are fixed on the cylinder connecting plate. The scraper cylinder is connected to the scraper, and the partition cylinder is connected to the partition.

[0013] As a preferred technical solution, the door body assembly includes a rotating shaft rotatably mounted on the separation box, and a revolving door is fixed on the rotating shaft; one end of the rotating shaft is transmission-connected to a revolving door drive assembly.

[0014] As a preferred technical solution, it also includes a stirring and cleaning device, the stirring and cleaning device includes

[0015] A connecting bracket, wherein the connecting bracket is fixed to the separation box and the upper end of the connecting bracket extends above the opening of the separation chamber;

[0016] and a stirring and cleaning nozzle, wherein the stirring and cleaning nozzle is fixed to the upper end of the connecting bracket through a lifting device;

[0017] It also includes an air source control valve and a water source control valve, and both the air source control valve and the water source control valve are connected to the input pipe of the stirring and cleaning nozzle.

[0018] As a preferred technical solution, a mesh plate is provided in the separation box, and the mesh plate is rotatably mounted on the inner wall of the separation chamber; a mesh plate driving component for driving the mesh plate to rotate or swing is provided on the outer wall of the separation box.

[0019] As a preferred technical solution, it also includes a coal tray conveying device, and the coal tray conveying device is located at the lower side of the separation outlet.

[0020] As a preferred technical solution, a gate valve and a heavy liquid recovery valve are provided at the lower end of the separation box, the heavy liquid recovery valve is connected to a heavy liquid recovery pipe, and a heavy liquid supply pipe is provided at the upper part of the separation box, and a one-way valve is provided on the heavy liquid supply pipe.

[0021] As a preferred technical solution, the separation box is provided with a liquid level meter and a density meter.

[0022] As a preferred technical solution, a coal liquid guide plate is fixed on the outer wall of the separation box, and the coal liquid guide plate is located at the lower side of the separation outlet.

[0023] The beneficial effects of the present invention are as follows: heavy liquid at a certain depth is isolated by a partition, and the revolving door of the separation device is opened. A portion of the heavy liquid and floating coal remaining above the partition will flow out from the revolving door, and the floating coal and heavy liquid falling on the partition will be pushed out of the revolving door by a scraper, thereby realizing the function of automatic separation of floating coal in floating and sinking experiments, which can replace manual labor and avoid errors caused by manual experiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 It is a structural schematic diagram of the present invention from a first viewing angle;

[0026] Figure 2 It is a structural schematic diagram of the second viewing angle of the present invention.

[0027] In the figure, 1-scraper push rod, 2-scraper cylinder, 3-partition cylinder, 4-cylinder connecting plate, 5-partition, 6-separation box, 7-scraper, 8-frame, 9-heavy liquid supply pipe, 10-check valve, 11-online liquid level meter, 12-mesh plate drive assembly, 13-mesh plate cylinder, 14-heavy liquid recovery valve, 15-heavy liquid recovery pipe, 16-coal slurry valve, 17-elbow pipe, 18-funnel container, 1 9-coal tray, 20-online density meter, 21-coal liquid guide plate, 22-bearing seat, 23-revolving door, 24-rotating shaft, 25-stirring and cleaning nozzle, 26-auxiliary plate, 27-connecting bracket, 28-guide rod cylinder, 29-coal tray conveying device, 30-rotating shaft, 31-heavy liquid collecting pipe, 32-gate valve, 33-input pipe, 34-mesh plate, 35-gear box, 36-revolving door cylinder. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The description of these implementations is used to help understand the present invention, but does not constitute a limitation of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0030] A coal floating and sinking separation device, such as Figure 1 and Figure 2 As shown, it includes a separation box 6, a door body assembly, a partition 5 and a scraper 7.

[0031] The separation box 6 is fixed on the frame 8. As shown in the figure, the separation box 6 is a square container, but it is not limited to a square shape, and can also be cylindrical, rectangular, trapezoidal, etc. A separation chamber is provided in the separation box 6, and a separation outlet is provided on the side wall of the separation chamber; preferably, the separation outlet is located at the uppermost end of the separation box 6.

[0032] The door assembly can open or close the separation outlet; the door assembly includes a rotating shaft 24 rotatably mounted on the separation box 6, and both ends of the rotating shaft 24 are fixedly connected to the separation box 6 through seat bearings 22. A revolving door 23 is fixed on the rotating shaft 24, and the revolving door 23 is fixed to the rotating shaft 24 by welding, and one end of the rotating shaft 24 is drivingly connected to a revolving door drive assembly. The revolving door drive assembly can adopt a gear box 35, one end of the rotating shaft 24 extends into the gear box 35, the rotating shaft 24 is connected to the gear inside the gear box 35, and the rack meshing with the gear is connected to the external revolving door cylinder 36, that is, the expansion and contraction of the revolving door cylinder 36 controls the opening and closing of the revolving door 23.

[0033] Directly below the separation box 6 is a square cone bucket, which is provided with a gate valve 32, preferably a pneumatic gate valve, which can realize automatic control. The gate valve 32 is connected to an elbow 17, and a coal slurry valve 16 is provided on the elbow 17. The gate valve 32 is opened to discharge the coal slurry and gangue during the floating and sinking experiment.

[0034] A heavy liquid recovery pipe 15 is connected to the lower side of the square cone bucket, and a heavy liquid recovery valve 14 is provided on the heavy liquid recovery pipe 15. The heavy liquid can be recovered by opening the heavy liquid recovery valve 14.

[0035] A heavy liquid supply pipe 9 is provided on the upper part of the separation box 6 , and a one-way valve 10 is provided on the heavy liquid supply pipe 9 .

[0036] The separation box 6 is provided with an online liquid level meter 11 and an online density meter 20, which can detect the density of the heavy liquid and the liquid level of the heavy liquid in real time.

[0037] The partition 5 is located at the lower side of the separation outlet, and can slide into or out of the separation chamber in the horizontal direction. After the partition 5 extends into the separation chamber, it divides the separation chamber into an upper separation chamber connected to the separation outlet and a lower separation chamber isolated from the separation outlet.

[0038] The scraper 7 slides on the partition 5 and the scraper 7 can be close to or away from the separation outlet.

[0039] When the partition 5 is located in the middle of the separation box 6, the partition 5 forms a sliding seal with the separation box 6, for example, a sliding seal is formed by a sealing ring. Optimally, the separation outlet is located at the upper part of the separation box 6, and the partition 5 is also located at the upper part of the separation box 6. The separation box 6 is provided with a partition receiving groove, and the partition receiving groove and the separation outlet are respectively located on two opposite side walls of the separation box 6. The partition 5 is located in the partition receiving groove, and optimally, the partition 5 is located at the bottom of the partition receiving groove. The partition 5 does not need to form a sealing structure with the separation box 6, and the structure is simple and reasonable.

[0040] Furthermore, a cylinder connecting plate 4 is provided on the side wall of the partition accommodating groove 6 opposite to the separation outlet, and a scraper cylinder 2 and a partition cylinder 3 are fixed on the cylinder connecting plate 4. The scraper cylinder 2 is connected to the scraper 7 through the scraper push rod 1, and the partition cylinder 3 is connected to the partition 5.

[0041] The partition plate 5 and the scraper plate 7 are both located in the partition plate receiving groove 6. The partition plate 5 is connected to the partition plate cylinder 3 by bolts, and the scraper plate 7 is connected to the scraper plate cylinder 2 by the scraper plate push rod 1 and bolts. The partition plate cylinder 3 and the scraper plate cylinder 2 are both fixed to the cylinder connecting plate 4 by bolts, and the cylinder connecting plate 4 is fixed to the outer side wall of the upper end of the partition plate receiving groove 6 by bolts.

[0042] The stirring and cleaning device is also included, and the stirring and cleaning device includes a connecting bracket 27 and a stirring and cleaning nozzle 25. The connecting bracket 27 is fixed on the separation box 6 and the upper end of the connecting bracket 27 extends above the opening of the separation chamber; the stirring and cleaning nozzle 25 is fixed to the upper end of the connecting bracket 27 through a lifting device; the lifting device adopts a guide rod cylinder 28, and the guide rod cylinder 28 drives the stirring and cleaning nozzle 25 to rise and fall.

[0043] It also includes an air source control valve and a water source control valve, both of which are connected to the input pipe 33 of the stirring and cleaning nozzle 25. That is, the inlet end of the stirring and cleaning nozzle 25 is divided into two paths, one of which is connected to the air source through the air source control valve, and the other is connected to the water source through the water source control valve.

[0044] A mesh plate 34 is provided in the separation chamber, and the middle part of the mesh plate 34 is rotatably mounted on the inner wall of the separation chamber; a mesh plate driving assembly 12 is provided on the outer wall of the separation box 6, and the mesh plate driving assembly 12 can be a gear box, one end of the rotating shaft 30 is connected to the gear inside the gear box 12, and the rack meshed with the gear is connected to the external mesh plate cylinder 13. That is, the extension and contraction of the mesh plate cylinder 13 controls the rotation or swing of the mesh plate 34.

[0045] Specifically, the mesh plate 34 is fixedly connected to at least one rotating shaft 30, wherein the rotating shaft 30 may be located in the middle of the mesh plate 34 or at the end of the mesh plate 34. Of course, the mesh plate 34 may be mounted on the separation box 6 via two rotating shafts 34, and the mesh plate 34 may be driven by the mesh plate driving assembly 12 to swing or rotate.

[0046] It also includes a coal tray conveyor 29, which is located at the lower side of the separation outlet. The coal tray conveyor can be a conveyor belt, a conveyor chain, etc. The coal tray 19 is on the coal tray conveyor for transportation. A funnel container 18 is provided at the lower side of the separation outlet to receive the heavy liquid overflowing from the separation box 6 and filtered through the coal tray 19. The funnel container 18 is connected to the heavy liquid recovery device through the heavy liquid collection pipe 31 to recover the filtered heavy liquid.

[0047] A coal liquid guide plate 21 is fixed on the outer wall of the separation box 6. The coal liquid guide plate 21 is located at the lower side of the separation outlet. Its function is to facilitate the coal and heavy liquid to be guided into the coal tray 19 when they overflow.

[0048] An auxiliary plate 26 is provided on the upper opening of the separation box 6. The auxiliary plate 26 is mounted on a side wall of the separation box 6 by bolts, and its function is to facilitate the pouring of coal.

[0049] The specific working process is:

[0050] 1. Pour the coal required for floating and sinking test from the auxiliary plate 26 on the upper side of the separation box 6, and the coal falls onto the mesh plate 34 inside the separation box 6;

[0051] 2. Start the guide rod cylinder 28, the stirring and cleaning nozzle 25 moves downward to the inside of the separation box 6, open the water source control valve of the stirring and cleaning nozzle 25 connected to the water source, and the water source sprays out from the stirring and cleaning nozzle 25 and rotates under the recoil of the water;

[0052] 3. When the online liquid level meter 11 detects a suitable liquid level, stop spraying water into the separation box 6 and open the air source control valve connected to the air source. Similarly, the stirring and cleaning nozzle 25 rotates under the back-blowing effect of the air flow to stir the heavy liquid and floating coal. After stirring for a period of time, stop blowing and stirring;

[0053] 4. Open the air-controlled gate valve 32 below the separation box 6 to discharge the coal slurry water out of the separation box 6, and then close the gate valve 32.

[0054] 5. Repeat steps 3 and 4 several times to completely clean the coal slime on the coal. After cleaning, lift and stir the cleaning nozzle 25;

[0055] 6. Turn on the heavy liquid replenishment pump, and the heavy liquid is injected into the separation box 6 through the one-way valve 10 and the heavy liquid replenishment pipe 9. After the online liquid level meter 11 detects the appropriate liquid level, the injection of heavy liquid is stopped;

[0056] 7. The stirring and cleaning nozzle 25 falls into the heavy liquid again, blows and stirs the heavy liquid and the floating coal for a period of time, and then the stirring and cleaning nozzle 25 rises back to a suitable position;

[0057] 8. Start the partition cylinder 3 to push the partition 5, which enters the separation chamber and separates the heavy liquid and floating coal into two parts, upper and lower parts;

[0058] 9. Turn on the revolving door cylinder 36, the revolving door 23 is opened, and the heavy liquid and coal fall into the coal tray 19 through the coal liquid guide plate 21; the bottom of the coal tray 19 is opened, and the heavy liquid drains out from the coal tray 19;

[0059] 10. Start the scraper cylinder 2 and push the scraper 7 in the separation box 6. The scraper 7 will scrape the residual coal left on the partition 5 out of the rotating door 23;

[0060] 11. Turn on the heavy liquid supply pump to supply heavy liquid to the separation box 6 to a suitable position, and repeat the above steps 6, 7, 8, 9, and 10 to complete the separation of the floating coal of this density level;

[0061] 12. Open the heavy liquid recovery valve 14 to recover the heavy liquid of this density level, and repeat the above steps 6, 7, 8, 9, 10, and 11 to complete the separation of floating coal of the next density level;

[0062] 13. After the last density level of floating coal is separated, the mesh plate cylinder 13 is opened, the mesh plate 34 in the separation box 6 is rotated, and the gangue falls into the square cone bucket of the separation box 6. The gate valve 32 is opened, and the remaining gangue is discharged from the square container 6.

[0063] 14. Open the water source control valve of the stirring and cleaning nozzle 25 to spray water into the separation box 6. The stirring and cleaning nozzle 25 reciprocates up and down under the action of the guide rod cylinder 28. The sprayed water cleans the inner wall of the separation box 6. After the cleaning is completed, all components return to their positions.

[0064] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A coal floating and sinking separation device, characterized in that: include A separation box, wherein a separation chamber is provided in the separation box, and a separation outlet is provided on a side wall of the separation chamber; A door assembly, wherein the door assembly can open or close the separation outlet; a partition, the partition being located below the separation outlet, the partition being able to slide into or out of the separation chamber in a horizontal direction, and being able to separate the separation chamber into an upper separation chamber connected to the separation outlet and a lower separation chamber isolated from the separation outlet after the partition is extended into the separation chamber; a scraper, the scraper sliding on the partition and the scraper being able to approach or move away from the separation outlet; A coal liquid guide plate, the coal liquid guide plate is fixed on the outer wall of the separation box, and the coal liquid guide plate is located at the lower side of the separation outlet; The separation outlet is located at the upper end of the separation box, the separation box is provided with a partition receiving groove, the partition receiving groove and the separation outlet are respectively located on opposite side walls of the separation box, and the partition and the scraper are both located in the partition receiving groove; The stirring and cleaning device also includes a stirring and cleaning device. A connecting bracket, wherein the connecting bracket is fixed to the separation box and the upper end of the connecting bracket extends above the opening of the separation chamber; and a stirring and cleaning nozzle, wherein the stirring and cleaning nozzle is fixed to the upper end of the connecting bracket through a lifting device; It also includes an air source control valve and a water source control valve, and both the air source control valve and the water source control valve are connected to the input pipe of the stirring and cleaning nozzle.

2. A coal floating and sinking separation device as claimed in claim 1, characterized in that: A cylinder connecting plate is fixed on the side wall of the partition accommodating groove opposite to the separation outlet, and a scraper cylinder and a partition cylinder are fixed on the cylinder connecting plate. The scraper cylinder is connected to the scraper, and the partition cylinder is connected to the partition.

3. A coal floating and sinking separation device as claimed in claim 1, characterized in that: The door body assembly comprises a rotating shaft rotatably mounted on the separation box, a rotating door is fixed on the rotating shaft; one end of the rotating shaft is drivingly connected to a rotating door driving assembly.

4. A coal floating and sinking separation device as claimed in claim 1, characterized in that: A mesh plate is arranged in the separation box, and the mesh plate is rotatably mounted on the inner wall of the separation chamber; a mesh plate driving component for driving the mesh plate to rotate or swing is arranged on the outer wall of the separation box.

5. The coal floating and sinking separation device according to claim 1, characterized in that: It also includes a coal tray conveying device, which is located at the lower side of the separation outlet.

6. A coal floating and sinking separation device as claimed in claim 1, characterized in that: The lower end of the separation box is provided with a gate valve and a heavy liquid recovery valve, the heavy liquid recovery valve is connected to a heavy liquid recovery pipe, and the upper part of the separation box is provided with a heavy liquid supply pipe, and the heavy liquid supply pipe is provided with a one-way valve.

7. The coal floating and sinking separation device according to claim 1, characterized in that: The separation box is provided with a liquid level meter and a density meter.

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