Open pit coal mine coal top cleaning and separating device

Abstract

The utility model discloses an open pit coal mine coal top cleaning separating device, which relates to the technical field of coal mine separation, and comprises a separating box, the top of the separating box is rotatably connected with an access cover, the surface of the access cover is provided with a feed port, the surface of the separating box is provided with a discharge port, and the lower position of the surface of the separating box is provided with a slag discharge groove. The separation assembly is arranged, coal mine needing to be separated is put into the separation box through the feeding inlet, under the action of separation liquid in the separation box, the coal mine floats on the top of the separation box, gangue sinks into the bottom of the separation box, separation of the coal mine is achieved, and the floating coal mine flows into the material collecting box along with the separation liquid from the discharging outlet. Separating liquid flows into the circulating box from the water permeable hole, the coal mine is discharged into the collecting cavity, the separating liquid is pumped back into the separating box under the action of the circulating pump to be recycled, the coal mine is continuously separated, gangue flows into the deslagging collecting box under the action of the guide seat to be taken out, the coal mine and the gangue can be taken out without pumping the separating liquid, and the separating efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of coal mine separation technology, specifically to a coal roof separation device for open-pit coal mines. Background Technology

[0002] Coal mines are areas where humans extract coal resources in coal-rich areas. They are generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, tunnels are usually dug underground to extract the coal; this is called an underground coal mine. When the coal seam is very close to the surface, the surface soil is usually stripped away to extract the coal; this is called an open-pit coal mine.

[0003] A search of existing published patents revealed that CN201721057466.0, entitled "A Cleaning and Separating Device for Coal Mines," relates to the field of mining equipment technology. This cleaning and separating device for coal mines includes a housing with fixed supports at the bottom. A stone storage box is located at the bottom of the housing, with its top extending through the bottom and into the interior. The top of the housing has a feeding port and a liquid injection port, both extending through the top and into the interior. This cleaning and separating device for coal mines, by incorporating a fan, eliminates dust from the raw coal, improving the purity of the coal and enhancing the screening quality. The addition of a stirring rod accelerates the separation of impurities, increasing the screening speed and quality. The screening box allows for the classification of coal blocks of different sizes, simplifying the process and improving the efficiency of coal washing and separation.

[0004] However, the above-mentioned device cannot continuously separate coal ore during use. When the separated coal ore and gangue need to be removed from the box, the separation liquid needs to be released. After the coal ore and gangue are removed, the separation liquid needs to be added again, which is not efficient. Utility Model Content

[0005] (1) Technical problems solved

[0006] To address the shortcomings of existing technologies, this utility model provides an open-pit coal mine coal top separation device, which solves the problems of inability to continuously separate coal ore, the need to release the separation liquid when the separated coal ore and gangue need to be removed from the box, and the need to add the separation liquid again after removing the coal ore and gangue, resulting in low efficiency.

[0007] Technical solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an open-pit coal mine coal top separation device, comprising: a separation box, a maintenance cover rotatably connected to the top of the separation box, an inlet on the surface of the maintenance cover, an outlet on the surface of the separation box, a separation assembly on the separation box, the separation assembly including a slag collection box fixedly connected to one side of the separation box, a slag discharge trough on the lower part of the surface of the separation box, the separation box and the slag collection box being fixedly connected, a receiving box fixedly connected to the surface of the separation box, a partition fixedly connected inside the receiving box, the partition dividing the receiving box into a collection chamber and a circulation box, a circulation pump fixedly installed inside the circulation box, a circulation pipe fixedly connected to the outlet of the circulation pump, and the circulation pipe being fixedly connected to the separation box.

[0009] Preferably, the bottom of the separation box and the slag collection box are fixedly connected to a guide seat, and the guide seat is inclined downward from the separation box to the slag collection box.

[0010] Preferably, the separation box has a circulation outlet of the same size as the circulation pipe, the circulation pump inlet is fixedly connected to the circulation box, and the circulation pump inlet is equipped with a filter screen.

[0011] Preferably, a filter plate is fixedly connected to the discharge port, the surface of the filter plate is evenly provided with water-permeable holes, and the top of the filter plate is inclined.

[0012] Preferably, a geared motor is fixedly connected to the top of the inspection cover, a rotating shaft is fixedly connected to the output shaft end of the geared motor, rotating blades are arranged in a circular array on the upper part of the rotating shaft surface, and stirring blades are evenly distributed on the lower part of the rotating shaft surface.

[0013] Preferably, the rotating shaft is rotatably connected to the bottom of the separation box, and the rotating paddle does not contact the inner wall of the separation box.

[0014] Preferably, the circulating water outlet is symmetrically arranged about the discharge outlet, and the water output of the circulating water outlet is the same as that of the discharge outlet.

[0015] Beneficial effects

[0016] This utility model provides a coal roof separation device for open-pit coal mines, which has at least the following advantages compared with the prior art:

[0017] A separation assembly is installed. The coal to be separated is placed into the separation box through the feed inlet. Under the action of the separating liquid in the separation box, the coal floats on the top of the separation box, while the gangue sinks to the bottom, thus achieving the separation of the coal. The floating coal flows into the receiving box from the discharge outlet along with the separating liquid. The separating liquid flows into the circulation box through the water permeable hole, and the coal is discharged into the collection chamber. The separating liquid is pumped back into the separation box for continuous separation of the coal by the action of the circulation pump. The gangue flows into the slag collection box under the action of the guide seat and is removed. The coal and gangue can be removed without pumping out the separating liquid, thus improving the separation efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the circulating pump and circulating pipe of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the separation component of this utility model;

[0021] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0022] In the diagram: 1. Separation box; 2. Inspection cover; 3. Feed inlet; 4. Discharge outlet; 5. Separation assembly; 501. Gear motor; 502. Rotating shaft; 503. Rotating paddle; 504. Slag discharge trough; 505. Slag collection box; 506. Guide seat; 507. Material receiving box; 508. Partition plate; 509. Collection chamber; 510. Circulation box; 511. Circulation pipe; 512. Circulation outlet; 513. Filter plate; 515. Water permeable hole; 516. Circulation pump. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] Please see Figure 1-4This utility model provides a technical solution: a separation box 1, with a maintenance cover 2 rotatably connected to the top of the separation box 1. The maintenance cover 2 has a feed inlet 3 on its surface, and the separation box 1 has a discharge outlet 4 on its surface. A separation component 5 is provided on the separation box 1. The separation component 5 includes a slag collection box 505 fixedly connected to one side of the separation box 1. A slag discharge trough 504 is provided at the lower position of the surface of the separation box 1. The separation box 1 and the slag collection box 505 are fixedly connected. A receiving box 507 is fixedly connected to the surface of the separation box 1. A partition 508 is fixedly connected inside the receiving box 507. The partition 508 divides the receiving box 507 into a collection chamber 509 and a circulation box 510 in sequence. A circulation pump 516 is fixedly installed inside the circulation box 510. The outlet of the circulation pump 516 is fixedly connected to a circulation pipe 511. The circulation pipe 511 is fixedly connected to the separation box 1.

[0026] Analysis of the above content: A separation component 5 is set up. The coal to be separated is put into the separation box 1 through the feed inlet 3. Under the action of the separation liquid in the separation box 1, the coal floats on the top of the separation box 1, and the gangue sinks to the bottom of the separation box 1, thus realizing the separation of coal. The floating coal flows into the receiving box 507 from the discharge outlet 4 with the separation liquid. The separation liquid flows into the circulation box 510 from the water permeable hole 515. The coal is discharged into the collection chamber 509. The separation liquid is pumped back into the separation box 1 for recycling under the action of the circulation pump 516, so as to continuously separate the coal. The gangue flows into the slag collection box 505 under the action of the guide seat 506 and is taken out. The coal and gangue can be taken out without pumping out the separation liquid, thus improving the separation efficiency.

[0027] Example 2:

[0028] Please see Figure 1-4 Based on Embodiment 1, this utility model provides a technical solution: a guide seat 506 is fixedly connected to the bottom of the separation box 1 and the slag collection box 505. The guide seat 506 is inclined downward from the separation box 1 to the slag collection box 505.

[0029] Analysis of the above content: Under the action of the guide seat 506, the gangue rolls from the bottom of the separation box 1 into the slag collection box 505, making it convenient to remove the gangue.

[0030] Example 3:

[0031] Please see Figure 1-4 This utility model provides a technical solution based on Embodiment 1: A circulation outlet 512 of the same size as the circulation pipe 511 is provided inside the separation tank 1. The inlet of the circulation pump 516 is fixedly connected to the circulation tank 510, and a filter screen is provided at the inlet of the circulation pump 516. The circulation outlet 512 is symmetrically arranged about the discharge port 4, and the water output of the circulation outlet 512 is the same as that of the discharge port 4.

[0032] Analysis of the above: The separated liquid is sprayed out from the circulation outlet 512, which allows it to be recycled back into the separation tank 1 and also to wash the coal mine. The water flow rate of the circulation outlet 512 is the same as that of the discharge outlet 4, ensuring a stable level of the separated liquid in the separation tank 1. The separation tank 1 is also equipped with a replenishment pipe and a level gauge connected to the external separated liquid to ensure a stable liquid level. The level gauge detects the liquid level in the separation tank 1, and when the level drops, the replenishment pipe promptly adds separated liquid.

[0033] Example 4:

[0034] Please see Figure 1-4 Based on Embodiment 1, this utility model provides a technical solution: a filter plate 513 is fixedly connected to the discharge port 4, and water-permeable holes 515 are evenly opened on the surface of the filter plate 513, and the top of the filter plate 513 is inclined.

[0035] Analysis of the above content: A filter plate 513 is set up to separate the coal ore from the separation liquid. The separation liquid flows into the circulation box 510 through the water permeable hole 515 for recycling, while the coal ore falls into the collection chamber 509 and is collected.

[0036] Embodiment 5:

[0037] Please see Figure 1-4 The present invention provides a technical solution based on Embodiment 1: A reduction motor 501 is fixedly connected to the top of the inspection cover 2, and a rotating shaft 502 is fixedly connected to the output shaft end of the reduction motor 501. Rotating paddles 503 are arranged in a circular array on the upper part of the surface of the rotating shaft 502, and stirring blades are evenly distributed on the lower part of the surface of the rotating shaft 502.

[0038] Analysis of the above content: The geared motor 501 drives the rotating shaft 502 and the rotating blade 503 to rotate. The rotation of the rotating blade 503 sends the floating coal into the discharge port 4 for discharge. The rotating blade 503 has through holes on its surface to reduce the discharge of diverted liquid.

[0039] Example 6:

[0040] Please see Figure 1-4 Based on Embodiment 1, this utility model provides a technical solution: the rotating shaft 502 is rotatably connected to the bottom of the separation box 1, and the rotating paddle 503 does not contact the inner wall of the separation box 1.

[0041] Analysis of the above content: The rotating paddle 503 does not contact the inner wall of the separation box 1, thus avoiding the rotating paddle 503 from being stuck between the rotating paddle 503 and the inner wall of the separation box 1 by the coal mine, reducing the risk of accidents.

[0042] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coal roof separation device for open-pit coal mines, characterized in that, include: A separation box (1) is provided, with a maintenance cover (2) rotatably connected to the top of the separation box (1). The maintenance cover (2) has a feed inlet (3) on its surface, and a discharge outlet (4) on the surface of the separation box (1). A separation assembly (5) is provided on the separation box (1), and the separation assembly (5) includes a slag collection box (505) fixedly connected to one side of the separation box (1). A slag discharge trough (504) is provided on the lower part of the surface of the separation box (1). The separation box (1) and the slag collection box (505) are connected. The separation box (1) is fixedly connected to a receiving box (507). A partition (508) is fixedly connected inside the receiving box (507). The partition (508) divides the receiving box (507) into a collection chamber (509) and a circulation box (510) in sequence. A circulation pump (516) is fixedly installed inside the circulation box (510). A circulation pipe (511) is fixedly connected to the outlet of the circulation pump (516). The circulation pipe (511) is fixedly connected to the separation box (1).

2. The open-pit coal mine roof separation device according to claim 1, characterized in that: The bottom of the separation box (1) and the slag collection box (505) are fixedly connected to a guide seat (506), and the guide seat (506) is inclined downward from the separation box (1) to the slag collection box (505).

3. The open-pit coal mine roof separation device according to claim 1, characterized in that: The separation box (1) is provided with a circulation outlet (512) of the same size as the circulation pipe (511). The inlet of the circulation pump (516) is fixedly connected to the circulation box (510). The inlet of the circulation pump (516) is provided with a filter screen.

4. The open-pit coal mine roof separation device according to claim 1, characterized in that: A filter plate (513) is fixedly connected to the discharge port (4). The filter plate (513) has water-permeable holes (515) evenly distributed on its surface, and the top of the filter plate (513) is inclined.

5. The open-pit coal mine roof separation device according to claim 1, characterized in that: The inspection cover (2) is fixedly connected to a reduction motor (501) at the top. The output shaft of the reduction motor (501) is fixedly connected to a rotating shaft (502). Rotating paddles (503) are arranged in a circular array on the upper part of the surface of the rotating shaft (502). Stirring blades are evenly distributed on the lower part of the surface of the rotating shaft (502).

6. The open-pit coal mine roof separation device according to claim 5, characterized in that: The rotating shaft (502) is rotatably connected to the bottom of the separation box (1), and the rotating paddle (503) does not contact the inner wall of the separation box (1).

7. The open-pit coal mine roof separation device according to claim 3, characterized in that: The circulating water outlet (512) is symmetrically arranged about the discharge outlet (4), and the water output of the circulating water outlet (512) is the same as that of the discharge outlet (4).

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