Coal mine with slag separation system

Abstract

The application discloses a coal mine exploitation slag separation system, which comprises: a fly ash screening box; the fly ash screening box is configured with a screening component, and a plurality of screening holes are uniformly distributed on the screening component; a slag treatment system is connected with the fly ash screening box to post-process the slag screened out from the fly ash screening box; wherein the upper end of the slag treatment system is configured with a feeding port, which is connected with the end of the screening component to convey the slag screened out from the fly ash screening box into the slag treatment system; the slag treatment system comprises a ball mill bin and ball mill media, and the ball mill media is composed of steel balls with different radii. The coal mine exploitation slag separation system realizes the separation of slag and fly ash, post-processes the slag, and obtains fine slag which can be directly used for building materials.

Description

Technical Field

[0001] This invention relates to the field of coal mining technology. More specifically, this invention relates to a slag separation system for coal mining. Background Technology

[0002] During coal mining, slag and fly ash are produced along with coal. The dumping of slag around coal mines not only pollutes the environment but also occupies a large amount of mineral resources. Slag, on the other hand, can be used to manufacture cement, bricks, and refractory materials.

[0003] Existing coal mine slag separation systems only separate coal, slag, and fly ash, lacking post-processing of slag. Slag dumping around coal mines is a serious problem, and slag cannot be effectively recycled, resulting in resource waste. Summary of the Invention

[0004] One object of the present invention is to solve at least the above-mentioned problems and to provide at least the advantages that will be described later.

[0005] Another objective of this invention is to provide a slag separation system for coal mining, which separates slag from fly ash and performs post-processing on the slag to obtain fine-grained slag that can be directly used as building materials.

[0006] To achieve these objectives and other advantages according to the present invention, a slag separation system for coal mining is provided, comprising:

[0007] A fly ash screening box; it is equipped with screening components, on which multiple screening holes are evenly distributed;

[0008] A slag treatment system connected to the fly ash screening box for post-processing of the slag screened out by the fly ash screening box;

[0009] The slag treatment system is equipped with a feed inlet at its upper end, which is connected to the end of the screening component to transport the slag screened by the fly ash screening box to the slag treatment system. The slag treatment system includes a ball milling chamber and ball milling media, which are composed of steel balls of different radii.

[0010] Preferably, the screening component specifically includes:

[0011] Transmission components, including the main frame, transmission chain rod, and transmission chain;

[0012] Multiple vibrating screening troughs are evenly distributed on the transmission component, and multiple screening holes are evenly distributed on both sides of each vibrating screening trough.

[0013] Each vibrating screening trough is fixedly mounted on the main frame, and a vibrating screening trough is provided between every two adjacent transmission chain rods.

[0014] Preferably, the slag separation system used in coal mine development also includes:

[0015] The vibrating screening mechanism includes multiple vibrating plates, multiple vibrating units, multiple vibrating auxiliary plates, and a drive unit, which are arranged corresponding to multiple vibrating screening troughs. The vibrating plates are fixed at the bottom of the vibrating screening troughs, and the vibrating units are connected to the vibrating plates through the vibrating auxiliary plates. The drive unit is configured on the main frame so that when the main frame moves with the transmission chain, it drives the multiple vibrating units to move horizontally relative to the vibrating auxiliary plates, thereby causing the vibrating screening troughs to vibrate and screen out the fly ash through multiple screening holes on both sides of the vibrating screening troughs, which then fall into the fly ash screening box.

[0016] Preferably, the slag separation system used in coal mine development also includes:

[0017] A slag screening system is configured below the discharge port of the slag treatment system to receive the treated slag and separate the treated slag according to the particle size.

[0018] The slag screening system is divided into a first chamber and a second chamber by a filter plate.

[0019] Preferably, the slag separation system used in coal mine development also includes:

[0020] The conveyor belt is connected to the discharge port at the lower end of the fly ash screening box and is used to convey and reuse the fly ash screened out by the fly ash screening box.

[0021] Preferably, the slag separation system used in coal mine development also includes:

[0022] A pair of cleaning pipes are provided in conjunction with multiple vibrating screen troughs to clean the screening holes on both sides of the multiple vibrating screen troughs to prevent clogging.

[0023] Each vibrating screening trough has a storage trough at the top of one side. When not being cleaned, a pair of cleaning tubes are stored in the storage trough. When cleaning, the drive mechanism drives the pair of cleaning tubes to unfold parallel to the side with the screening holes to clean the screening holes.

[0024] Preferably, the slag treatment system further includes:

[0025] The discharge chamber is connected to the ball mill chamber on one side. The upper end of the discharge chamber is provided with an air outlet, and the lower end is provided with a discharge port.

[0026] The discharge grate is located below the discharge chamber and is connected to the ball mill chamber for conveying the ball-milled slag to the discharge port.

[0027] A support device is provided, which is supported on the other side of the discharge chamber;

[0028] The transmission unit, which includes a speed reducer and a motor, is used to drive the operation of the slag handling system.

[0029] Preferably, each cleaning pipe has multiple spray holes evenly distributed on it.

[0030] The present invention has at least the following beneficial effects:

[0031] First, the coal mine slag separation system of the present invention separates slag and fly ash through a fly ash screening box, collects and utilizes the fly ash, and realizes the rational utilization of coal mining resources in a green and environmentally friendly manner.

[0032] Secondly, the coal mine slag separation system of the present invention uses a slag treatment system to post-process the slag, turning it into fine slag that can be directly used in the construction field. This solves the problem of serious slag stockpiling around coal mines, which prevents the slag from being recycled and utilized effectively, resulting in resource waste.

[0033] Third, the coal mine slag separation system of the present invention uses a transmission component to transport the slag after the fly ash has been removed to the slag treatment system for post-processing of the slag, realizing the integrated design of slag treatment and fly ash screening, improving the efficiency of the slag separation system, eliminating the need to transport large amounts of slag to a special slag treatment plant for processing, and reducing transportation and labor costs.

[0034] Fourth, the slag separation system of this invention, after ball milling, separates the slag into fine slag of different particle sizes through a slag screening system. The different particle sizes can be used for different building materials. For example, fine slag can be used for masonry mortar and wall materials, and particles with a size of less than 3 mm can be used to fire clay bricks, thus saving fuel.

[0035] Fifth, the slag separation system used in this invention for coal mine mining cleans the screening holes in the vibrating screen trough through a cleaning pipe, thus avoiding the problem of blockage caused by long-term use.

[0036] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0037] Figure 1 This is a flowchart of the coal mine slag separation system of the present invention;

[0038] Figure 2 This is a schematic diagram of the screening component in the slag separation system used in coal mine mining according to the present invention.

[0039] Figure 3 This is a schematic diagram of the transmission component in the slag separation system used in coal mine mining according to the present invention;

[0040] Figure 4 This is a schematic diagram of the filter plate structure in the slag separation system used in coal mine mining according to the present invention;

[0041] Figure 5 This is a schematic diagram of the cleaning pipe structure in the slag separation system used in coal mine mining according to the present invention;

[0042] Figure 6 This is a schematic diagram of the vibrating screening structure in the slag separation system used in coal mine mining according to the present invention.

[0043] Reference numerals: 1: Fly ash screening box; 11: Screening component; 110: Transmission component; 1101: Main frame; 1102: Transmission chain rod; 1103: Transmission chain; 1104: Drive motor; 111: Vibrating screening trough; 1110: Screening hole; 12: Discharge port; 2: Slag treatment system; 20: Ball mill chamber; 21: Ball milling media; 22: Discharge chamber; 221: Air outlet; 222: Discharge port; 23: Discharge grate; 24: Support device; 25: Reducer; 26: Motor; 27: Feed port; 3: Slag screening system; 30: Filter plate; 301: Filter hole; 31: First chamber; 32: Second chamber; 4: Conveyor belt; 5: Cleaning pipe; 50: Spray hole; 6: Vibrating screening mechanism; 61: Vibrating plate; 62: Vibrating unit; 63: Vibrating auxiliary plate. Detailed Implementation

[0044] The present invention will be further described in detail below with reference to embodiments, so that those skilled in the art can implement it based on the description.

[0045] It should be noted that, unless otherwise specified, the experimental methods described in the following implementation plan are all conventional methods, and the reagents and materials described are all commercially available unless otherwise specified.

[0046] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not imply the presence or addition of one or more other elements or combinations thereof.

[0047] It should be noted that in the description of this invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship shown, and are only for the convenience of describing this invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0048] like Figure 1-5 This invention provides a slag separation system for coal mine development, comprising:

[0049] Fly ash screening box 1; it is equipped with screening components 11, on which a plurality of screening holes 1110 are evenly distributed;

[0050] Slag treatment system 2, which is connected to the fly ash screening box 1 to perform post-processing on the slag screened out by the fly ash screening box 1;

[0051] The slag treatment system 2 is equipped with a feed inlet 27 at its upper end, which is connected to the end of the screening component 11 to transport the slag screened by the fly ash screening box 1 to the slag treatment system 2. The slag treatment system 2 includes a ball milling chamber 20 and a ball milling media 21, which is composed of steel balls of different radii.

[0052] In this implementation scheme, fly ash and slag are separated by a fly ash screening box 1. The fly ash is then transported, collected, and utilized, fully recovering resources in a green and environmentally friendly manner. The slag separated from the fly ash is ball-milled by a slag treatment system 2 to refine the slag into fine particles. The treated slag can then be directly used in building materials and other applications. This solves the problem of serious slag stockpiling around coal mines, which prevents the proper recycling and utilization of slag and leads to resource waste. At the same time, the pre-separation of fly ash avoids dust generation during subsequent slag processing, achieving an integrated design of slag treatment and fly ash screening. This improves the efficiency of the slag separation system and eliminates the need to transport large amounts of slag to a dedicated slag treatment plant, reducing transportation and labor costs.

[0053] In one of the technical solutions of the present invention, such as Figure 2 and 3 As shown, preferably, the screening component 11 specifically includes:

[0054] The transmission component 110 includes a main frame 1101, a transmission chain 1102, and a transmission chain 1103;

[0055] Multiple vibrating screening troughs 111 are evenly distributed on the transmission component 110, and multiple screening holes 1110 are evenly distributed on both sides of each vibrating screening trough 111.

[0056] Each vibrating screening trough 111 is fixedly mounted on the main frame 1101, and a vibrating screening trough 111 is provided between every two adjacent transmission chain rods 1102.

[0057] In this embodiment, a chain conveyor causes multiple vibrating screening troughs 111 to rotate in a ring at the upper end of the fly ash screening box, forming a closed loop. A vibrating screening trough is positioned between two adjacent drive chains, and the drive chain is connected to the main frame at the end of the drive chain. This prevents the vibrating screening trough from getting stuck during rotation and affecting its transport. The closed loop is twisted vertically or tilted at the upper end of the feed inlet 27 of the slag treatment system 2, and returns to a horizontal state at other positions. The upper end of each vibrating screening trough 111 is fixed by the drive chain so that its opening direction does not twist with the movement of the drive chain during chain conveying. When each vibrating screening trough 111 passes through the feed inlet of the slag treatment system, its opening direction naturally rotates downwards, allowing the slag containing the screened fly ash to be poured into the slag treatment system. When the opening of the vibrating screening trough rotates upwards, it is screened again.

[0058] The principle behind the circular rotation of the vibrating screening trough 111 at the upper end of the fly ash screening box is based on the traditional chain transmission principle. Specifically, a main frame supporting the circular motion of the vibrating screening trough 111 is installed at the upper end of the fly ash screening box. The main frame is equipped with a set of transmission sprockets for moving the vibrating screening trough 111. The transmission sprockets mesh with each other via bevel gears. One sprocket in each transmission sprocket set is fixedly connected to the output shaft of a drive motor 1104, which is fixed to the main frame. The transmission sprocket set includes two horizontal transmission sprocket sets and two side transmission sprocket sets. The two transverse conveyor sprocket sets are provided with transverse grooves on the sides, and the two side conveyor sprocket sets are provided with side grooves on the sides. The two transverse conveyor sprocket sets and the two side conveyor sprocket sets are meshed with each other by bevel gears. During operation, the drive motor drives the conveyor sprocket sets to work. The two transverse conveyor sprocket sets and the two side conveyor sprocket sets are driven by the meshing bevel gears, thereby driving the transmission chain 1103 to move in the two transverse conveyor sprocket sets and the two side conveyor sprocket sets. In turn, the chain moves and drives the vibrating screening trough 111 to move, so that the vibrating screening trough 111 makes a circular motion along the main frame.

[0059] In one preferred embodiment of the present invention, the slag separation system used in coal mine development further includes:

[0060] The vibrating screening mechanism 6 includes multiple vibrating plates 61, multiple vibrating units 62, multiple vibrating auxiliary plates 63, and a drive unit (not shown) corresponding to multiple vibrating screening troughs 111. The vibrating plates 61 are fixed to the bottom of the vibrating screening troughs 111. The vibrating units 62 are connected to the vibrating plates 61 through the vibrating auxiliary plates 63. The drive unit is configured on the main frame so that when the main frame moves with the transmission chain, it drives the multiple vibrating units 62 to move horizontally relative to the vibrating auxiliary plates 63, thereby causing the vibrating screening troughs 111 to vibrate and screen out the fly ash through multiple screening holes on both sides of the vibrating screening troughs, which then fall into the fly ash screening box 1.

[0061] In this embodiment, a vibrating plate 61, multiple vibrating units 62, and a vibrating auxiliary plate 63 are provided at the bottom of the outer side of each vibrating screening trough. A drive unit for pushing the vibrating units to move horizontally relative to the vibrating auxiliary plate 63 is provided on the main frame of the transmission component. During the transmission process, the vibrating units move horizontally relative to the vibrating auxiliary plate 63, thereby driving the vibrating screening trough 111 to vibrate. After the multiple screening holes on both sides of the fly ash vibrating screening trough are screened out, the fly ash falls into the fly ash screening box 1 and is simultaneously conveyed. Alternatively, the conveying can be paused first, screening can be carried out first, and after the screening time is up, the transmission component can be started to convey and unload the vibrating screening trough.

[0062] In one preferred embodiment of the present invention, the slag separation system used in coal mine development further includes:

[0063] The slag screening system 3 is configured below the discharge port 222 of the slag processing system 2 to receive the processed slag and separate the processed slag according to the particle size.

[0064] The slag screening system 3 is divided into a first chamber 31 and a second chamber 32 by a filter plate 30.

[0065] In this implementation scheme, the ball-milled slag is separated into fine slag particles of different sizes using a slag screening system. These different particle sizes allow for applications in various building materials; for example, fine slag can be used in masonry mortar and wall materials, while particles smaller than 3 mm can be used to fire clay bricks, saving fuel. The slag screening system can also be divided into multiple chambers using different filter plates, further refining the slag and enabling the efficient reuse of processed slag resources.

[0066] In one preferred embodiment of the present invention, the slag separation system used in coal mine development further includes:

[0067] The conveyor belt 4 is connected to the discharge port 12 at the lower end of the fly ash screening box 1, and is used to convey and reuse the fly ash screened out by the fly ash screening box 1.

[0068] In this implementation scheme, slag and fly ash are separated by a fly ash screening box, and the fly ash is collected and utilized by a conveyor belt, thereby achieving the rational utilization of coal mining resources in a green and environmentally friendly manner.

[0069] In one preferred embodiment of the present invention, the slag separation system used in coal mine development further includes:

[0070] A pair of cleaning pipes 5 are provided in conjunction with multiple vibrating screen troughs 111 to clean the screening holes 1110 on both sides of the multiple vibrating screen troughs 111 to prevent clogging.

[0071] Each vibrating screening trough 111 has a receiving trough (not shown in the figure) at the top of one side. When not cleaning, a pair of cleaning pipes 5 are stored in the receiving trough. When cleaning, the drive mechanism drives the pair of cleaning pipes 5 to unfold parallel to the side with the screening holes 1110 to clean the screening holes 1110.

[0072] In this implementation scheme, the screening holes in the vibrating screen tank are cleaned via a cleaning pipe, preventing clogging caused by prolonged use. The used water can be recycled for cleaning slag materials or discharged through a drain pipe for further purification or other treatments.

[0073] In one preferred embodiment of the present invention, the slag treatment system 2 further includes:

[0074] The discharge chamber 22 is connected to the ball mill chamber 21 on one side. The upper end of the discharge chamber 22 is provided with an air outlet 221 and the lower end is provided with a discharge port 222.

[0075] The discharge grate 23 is located below the discharge chamber 22. The discharge grate 23 is connected to the ball mill chamber 20 and is used to transport the ball-milled slag to the discharge port.

[0076] Support device 24, which is supported on the other side of the discharge chamber 22;

[0077] The transmission unit, which includes a reducer 25 and a motor 26, is used to drive the operation of the slag treatment system 2.

[0078] In this embodiment, by setting the slag treatment system in the form of a ball mill structure, ultrafine crushing of slag is achieved. Steel balls are used as the milling medium, resulting in minimal wear. Furthermore, the ground steel balls can be used for grading in a tube mill, eliminating waste. In this embodiment, the slag treatment system uses an XM30(II) ball mill. The ball mill discharge particle size has a 0.08mm sieve residue of 30%–40%, with 95% being less than 1mm. The filter plates in the slag screening system of this slag treatment system can have a pore size of 0.08mm. The first chamber screens slag larger than 0.08mm, and the second chamber screens slag smaller than 0.08mm. Alternatively, the filter plates can have a 1mm pore size, with the first chamber screening slag larger than 1mm and the second chamber screening slag smaller than 1mm.

[0079] In one of the technical solutions of the present invention, preferably, each cleaning pipe 5 has a plurality of spray holes 50 evenly distributed on it.

[0080] To enable those skilled in the art to better understand the technical solution of the present invention, the following embodiments are provided for illustration:

[0081] A coal mine slag separation system includes:

[0082] Fly ash screening box 1; it is equipped with screening components 11, on which a plurality of screening holes 1110 are evenly distributed;

[0083] Slag treatment system 2, which is connected to the fly ash screening box 1 to perform post-processing on the slag screened out by the fly ash screening box 1;

[0084] The vibrating screening mechanism 6 includes multiple vibrating plates 61, multiple vibrating units 62, multiple vibrating auxiliary plates 63, and a driving unit, which are arranged corresponding to multiple vibrating screening troughs 111. The vibrating plates 61 are fixed to the bottom of the vibrating screening troughs 111. The vibrating units 62 are connected to the vibrating plates through the vibrating auxiliary plates. The driving unit is arranged on the main frame so that when the main frame moves with the transmission chain, it drives the multiple vibrating units 62 to move horizontally relative to the vibrating auxiliary plates 63, thereby causing the vibrating screening troughs 111 to vibrate and screen out the fly ash through multiple screening holes on both sides of the vibrating screening troughs, which then fall into the fly ash screening box.

[0085] The slag screening system 3 is configured below the discharge port 222 of the slag processing system 2 to receive the processed slag and separate the processed slag according to the particle size; wherein, the slag screening system 3 is divided into a first chamber 31 and a second chamber 32 by a filter plate 30.

[0086] The conveyor belt 4 is connected to the discharge port 12 at the lower end of the fly ash screening box 1, and is used to convey and reuse the fly ash screened out by the fly ash screening box 1.

[0087] A pair of cleaning pipes 5 are matched with multiple vibrating screening tanks 111. Each cleaning pipe 5 has multiple spray holes 50 evenly distributed on it to clean the screening holes 1110 on both sides of the multiple vibrating screening tanks 111 to prevent clogging. Each vibrating screening tank 111 has a storage groove at the top of one side. When not cleaning, the pair of cleaning pipes 5 are stored in the storage groove. When cleaning, the drive mechanism drives the pair of cleaning pipes 5 to unfold parallel to the side with the screening holes 1110 to clean the screening holes 1110.

[0088] The slag treatment system 2 is equipped with a feed inlet 27 at its upper end, which is connected to the end of the screening component 11 to transport the slag screened by the fly ash screening box 1 to the slag treatment system 2. The slag treatment system 2 includes: a ball milling chamber 20 and ball milling media 21, which are composed of steel balls of different radii; the slag treatment system 2 also includes: a discharge chamber 22, one side of which is connected to the ball milling chamber 21, with an air outlet 221 at the upper end and a discharge port 222 at the lower end; a discharge grate 23, located below the discharge chamber 22, which communicates with the ball milling chamber 20 to transport the ball-milled slag to the discharge port; a support device 24, which supports the other side of the discharge chamber 22; and a transmission unit, including a reducer 25 and a motor 26, for driving the operation of the slag treatment system 2.

[0089] The screening component 11 specifically includes: a transmission component 110, which includes a main frame 1101, a transmission chain 1102, and a transmission chain 1103; a plurality of vibrating screening troughs 111, which are evenly distributed on the transmission component 110, and a plurality of screening holes 1110 are evenly distributed on both sides of each vibrating screening trough 111; wherein each vibrating screening trough 111 is fixedly mounted on the main frame 1101, and a vibrating screening trough 111 is provided between every two adjacent transmission chain 1102.

[0090] The working principle and process of this embodiment are as follows:

[0091] 1. Fly ash and slag generated during coal mining are poured into multiple vibrating screening troughs in a fly ash screening box. The vibrating screening mechanism drives the multiple vibrating screening troughs to vibrate and screen the fly ash. The fly ash is screened through the screening holes and enters the bottom of the fly ash screening box. The screened fly ash is transported out through the discharge port set at the bottom of the screening box and conveyed to the collection equipment by the conveyor belt for recycling.

[0092] 2. After the fly ash is screened, the slag is transported to the upper end of the feed inlet of the slag treatment system by the transmission component. As the vibrating screen trough is driven downward, the opening of the vibrating screen trough faces downward. Gravity causes the slag in it to enter the slag treatment system through the feed inlet. The ball milling media in the slag treatment system ball mill the slag into slag fine particles of different particle sizes.

[0093] 3. After ball milling, the fine slag particles enter the discharge chamber from the ball milling chamber. The slag particles are then thrown out to the discharge port through the discharge grate. The fine slag particles further enter the slag screening system. The slag particles of different sizes are screened through the filter plates set in the slag screening system, which further refines the slag and realizes the fine utilization of slag.

[0094] 4. After the entire screening, slag treatment, and slag screening process is completed, water is pumped into the cleaning pipe to clean the screening holes in the vibrating screen tank to prevent blockage.

[0095] The number of modules and processing scale described herein are for the purpose of simplifying the description of the invention. Applications, modifications, and variations of the invention will be readily apparent to those skilled in the art.

[0096] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and embodiments shown and described herein.

Claims

1. A slag separation system for coal mine development, characterized in that, include: Fly ash screening box; It is equipped with a screening component, on which multiple screening holes are evenly distributed; The screening component specifically includes: a transmission component, which includes a main frame, a transmission chain, and a transmission chain; multiple vibrating screening troughs, which are evenly distributed on the transmission component, and multiple screening holes are evenly distributed on both sides of each vibrating screening trough; wherein, each vibrating screening trough is fixedly installed on the main frame, and a vibrating screening trough is provided between every two adjacent transmission chains. A slag treatment system is connected to the fly ash screening box to post-process the slag screened out by the fly ash screening box; wherein, the upper end of the slag treatment system is provided with a feed inlet, which is connected to the end of the screening component to transport the slag screened out by the fly ash screening box to the slag treatment system; the slag treatment system includes: a ball milling chamber and ball milling media, the ball milling media being composed of steel balls of different radii; The vibrating screening mechanism includes multiple vibrating plates, multiple vibrating units, multiple vibrating auxiliary plates, and a drive unit, which are arranged corresponding to multiple vibrating screening troughs. The vibrating plates are fixed at the bottom of the vibrating screening troughs, and the vibrating units are connected to the vibrating plates through the vibrating auxiliary plates. The drive unit is arranged on the main frame so that when the main frame moves with the transmission chain, it drives the multiple vibrating units to move horizontally relative to the vibrating auxiliary plates, thereby causing the vibrating screening troughs to vibrate and the fly ash to fall into the fly ash screening box after being screened through multiple screening holes on both sides of the vibrating screening troughs. The discharge chamber is connected to the ball mill chamber on one side. The upper end of the discharge chamber is provided with an air outlet, and the lower end is provided with a discharge port. The discharge grate is located below the discharge chamber and is connected to the ball mill chamber for conveying the ball-milled slag to the discharge port. A support device is provided, which is supported on the other side of the discharge chamber; The transmission unit, which includes a speed reducer and a motor, is used to drive the operation of the slag handling system; The transmission component is configured to drive the vibrating screen trough to rotate in a ring at the upper end of the fly ash screening box to form a closed loop. When it reaches the upper end of the feed inlet of the slag treatment system, it twists to a vertical or inclined state, and returns to a horizontal state at other positions. A pair of cleaning pipes are provided in conjunction with multiple vibrating screen troughs to clean the screening holes on both sides of the multiple vibrating screen troughs to prevent clogging. Each vibrating screening trough has a storage trough at the top of one side. When not being cleaned, a pair of cleaning tubes are stored in the storage trough. When cleaning, the drive mechanism drives the pair of cleaning tubes to unfold parallel to the side of the vibrating screening trough with screening holes, and cleans the screening holes.

2. The coal mine slag separation system as described in claim 1, characterized in that, Also includes: A slag screening system is configured below the discharge port of the slag treatment system to receive the treated slag and separate it according to the slag particle size. The slag screening system is divided into a first chamber and a second chamber by a filter plate.

3. The coal mine slag separation system as described in claim 1, characterized in that, Also includes: The conveyor belt is connected to the discharge port at the lower end of the fly ash screening box and is used to convey and reuse the fly ash screened out by the fly ash screening box.

4. The coal mine slag separation system as described in claim 1, characterized in that, Each cleaning pipe has multiple spray holes evenly distributed on it.

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