Coal mine roadway coal slurry water in-situ hardening device and method

Abstract

The present application relates to the field of coal mine roadway support, in particular to a coal mine roadway coal slurry water in-situ hardening device and method; the device comprises a coal slurry water self-suction device, a stirring mechanism, a flattening device, a walking mechanism and a feeding device; wherein the coal slurry water self-suction device is used for sucking the coal slurry water on the tunnel floor, the stirring mechanism is used for mixing and stirring the coal slurry water and other materials into in-situ hardening material, the flattening device is used for flattening the in-situ hardening material, the walking mechanism is used for carrying the in-situ hardening device and can drive the in-situ hardening device to move, and the feeding device is used for supplying in-situ hardening raw materials; the method comprises using a laser emitter, a target paper and a camera to cooperate to obtain the inclination of the vehicle body in real time, and adjusting the height of the flattening roller to level. The present application can realize the integration of extraction, stirring and flattening, solve the problem of excessive accumulation of coal slurry on the tunnel floor, causing difficulty in walking and driving, reduce the labor intensity of workers, and improve the tunneling efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of coal mine roadway support, in particular to a coal mine roadway coal slurry water in-situ hardening device and method. BACKGROUND

[0002] When excavating a roadway in a coal seam, a large amount of coal dust is easily accumulated in the roadway. If the water content of the coal seam roof is large and the floor is mudstone, the cut coal and coal dust mixed with the roof water and the floor mudstone forms a "coal-mud-water" mixture (hereinafter referred to as coal slurry water). During the excavation process, the coal slurry water in the roadway needs to be dredged. The coal slurry has a large viscosity and low strength under normal pressure, and has a certain fluidity, which greatly interferes with the operation of the working face and the excavation equipment, resulting in a decrease in the efficiency of the roadway excavation. At present, the coal slurry water cleaning mainly relies on manpower, which increases the construction process and the labor intensity of workers, and reduces the excavation efficiency. SUMMARY

[0003] In view of the deficiencies in the prior art, the present application provides a coal mine roadway coal slurry water in-situ hardening device, which comprises a coal slurry water self-suction device, a stirring mechanism, a leveling device, and a walking mechanism.

[0004] The walking mechanism comprises a vehicle body, and the vehicle body comprises at least one rectangular bearing plate structure. A rectangular mixture material discharge port is arranged in the middle of the vehicle body along the width direction of the vehicle body.

[0005] The coal slurry water self-suction device is arranged at the front part of the vehicle body and comprises a suction head arranged in a rectangular flat mouth structure with the same width as the vehicle body. The coal slurry water self-suction device further comprises a self-suction device main machine fixed at the front part of the vehicle body. The inlet of the self-suction device main machine is connected with the suction head through a first pipeline, and the outlet of the self-suction device main machine is connected with a coal slurry water tank through a first pipeline. A coal slurry water flow meter is arranged on the first pipeline. The coal slurry water tank is provided with a concentration meter. The coal slurry water tank is further provided with a material supplementing port.

[0006] The stirring mechanism is arranged in the middle of the vehicle body and located above the mixture material discharge port. The stirring mechanism comprises a stirring barrel provided with a stirring frame. The stirring barrel is connected with a slag material inlet, a geopolymer material inlet, an activator material inlet, and a coal slurry water tank outlet through a second pipeline, respectively. The stirring barrel is further provided with a mixed material outlet in communication with the mixture material discharge port for discharging along the width direction of the vehicle body.

[0007] The flattening device is arranged at the rear of the vehicle body, two ear plates are arranged at the rear of the vehicle body, a flattening roller is arranged between the two ear plates, the flattening roller is rotationally connected with the two ear plates, the ear plate is provided with a vertical guide rail, and the end of the flattening roller can move up and down in the guide rail to adjust the position thereof in the guide rail; a laser emitter is arranged on each of the two ear plates, a target paper is further arranged at the rear of the vehicle body, the target paper is provided with a horizontal line as a horizontal reference, and the horizontal line always remains horizontal; a camera is further arranged at the tail of the vehicle body, and the camera is used for collecting the positions of left and right laser points of the laser emitter on the target paper and acquiring the inclination of the two sides of the vehicle body.

[0008] Preferably, the vehicle body is provided with wheels, and the wheels are driven by a fourth motor; the width of the vehicle body is slightly greater than one half of the width of the roadway or slightly greater than one third of the width of the roadway.

[0009] Preferably, one adjusting mechanism is arranged at each end of the suction head, one end of the adjusting mechanism is connected with the suction head, and the other end of the adjusting mechanism is connected with the vehicle body; the adjusting mechanism can adjust the height of the suction head; and the self-suction device main machine is driven to work by a first motor.

[0010] Preferably, the stirring frame is driven by a second motor to stir and mix the materials in the stirring barrel.

[0011] Preferably, the feeding device further comprises four feeding devices respectively for providing coal slime, slag, geopolymer and activator.

[0012] Preferably, the feeding device comprises a stock bin, a valve is arranged at the outlet of the stock bin, and then connected with the upper side of the wall of a third pipeline; one end of the third pipeline is connected with a fan, and the other end is an outlet; and a second flow meter is arranged at the end of the third pipeline close to the outlet.

[0013] Preferably, the water pump is arranged to supply water to the coal slime tank or the stirring barrel.

[0014] Preferably, the flattening roller is driven to rotate by a third motor, and an auxiliary baffle is further arranged at each ear plate at the two sides of the vehicle body; the height and the pitch angle of the auxiliary baffle relative to the vehicle body can be adjusted by a second adjusting component.

[0015] Preferably, the control device is further arranged to control the work of each component.

[0016] The coal mine roadway coal slime water in-situ hardening method further comprises the following steps by using the coal mine roadway coal slime water in-situ hardening device described above.

[0017] S1: the tunneling roadway is evenly divided into two parts or three parts along the width direction, and the width of each part matches the width of the vehicle frame;

[0018] S2: the hardening device is arranged at a flat position, the suction head is adjusted to a suitable position, the position of the leveling roller is adjusted to determine a suitable laying height, the target paper is arranged at a suitable height so that the left and right laser points emitted by the laser emitter are located on the horizontal line at this time, and the height position of the target paper is always kept unchanged thereafter;

[0019] S3: the proportions of coal slime, slag, geopolymer, activator and water are determined;

[0020] S4: the coal slime water hardening device is controlled to move forward, the suction head sucks the coal slime water at the lower part to the coal slime water tank, the proportions of coal slime and water in the sucked coal slime water are obtained according to the coal slime water concentration meter, coal slime is added to the coal slime water tank, or water is added to the coal slime water tank or the stirring tank, so that the proportion of coal slime and water reaches the designed proportion, the slag, geopolymer and activator are added to the stirring tank according to the designed proportion, the stirring frame is used for stirring and mixing uniformly, and the in-situ hardening material is discharged to the ground through the mixing discharge port and the mixture discharge port;

[0021] At the same time, the positions of the left and right laser points emitted by the laser emitter on the target paper are obtained by photographing through the camera, and the height of the leveling roller is adjusted according to the relative positions of the left and right laser points and the horizontal line, so that the left and right laser points emitted by the laser emitter are always on the horizontal line;

[0022] S5: the steps S1-S4 are installed one by one for each part of construction;

[0023] S6: with the continuous advancement of the tunneling working face, the tunneling roadway of the newly generated coal slime water floor is constructed in the manner of the steps S1-S5.

[0024] The beneficial effects of the present application are as follows:

[0025] 1. The coal mine roadway floor coal slime water in-situ hardening device provided by the present application can realize the integrated functions of extraction, stirring and leveling, mainly solves the problems of excessive accumulation of coal slime on the tunneling roadway floor, causes the difficulty of walking and driving, reduces the labor intensity of workers and improves the tunneling efficiency.

[0026] 2. The coal mine roadway floor coal slime water in-situ hardening method provided by the present application can realize the rapid in-situ hardening of the roadway floor coal slime water, the materials used are mainly coal slime water, realizes the in-situ material utilization and waste utilization, and greatly reduces the hardening cost.

[0027] 3.The coal slurry water cleaning and floor rapid hardening can be simultaneously carried out, and compared with the conventional concrete hardening, the coal slurry water cleaning and floor rapid hardening has the advantages of rapid hardening speed, high early strength and the like, can improve the construction efficiency, and relieves the transportation tension. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings:

[0029] Figure 1 is a schematic diagram of the overall structure of the coal mine roadway coal slurry water in-situ hardening device of the present application;

[0030] Figure 2 is a schematic diagram of the leveling device of the coal mine roadway coal slurry water in-situ hardening device of the present application;

[0031] Figure 3 is a schematic diagram of the target paper display of the coal mine roadway coal slurry water in-situ hardening device of the present application;

[0032] Figure 4 is a schematic diagram of the overall structure of the feeding device of the present application;

[0033] The reference signs are explained as follows:

[0034] 1-coal slurry water self-suction device: 101-suction head, 102-first pipeline, 103-first motor; 104-adjusting mechanism; 105-self-suction device main machine; 106-coal slurry water flowmeter; 107-coal slurry water concentration meter; 108-coal slurry water tank; 109-feeding opening;

[0035] 2-stirring mechanism: 201-slag feeding opening, 202-geopolymer feeding opening, 203-activator feeding opening; 204-stirring frame, 205-second motor; 206-second pipeline; 207-stirring barrel;

[0036] 3-leveling device: 301-third motor, 302-leveling roller; 303-camera; 304-laser emitter; 305-leveling baffle; 306-rail; 307-target paper; 308-horizontal line; 309-ear plate; 3041-left laser point; 3042-right laser point;

[0037] 4-traveling mechanism: 401-mixture discharging opening, 402-fourth motor, 403-wheel, 404-car body;

[0038] 5-feeding device: 501-silo, 502-valve, 503-fan, 504-second flowmeter, 505-discharging opening; 506-third pipeline; 6-control device. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0040] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0041] Embodiment one

[0042] As shown in Figures 1-4 The coal mine roadway slurry hardening device of the present application comprises a slurry self-suction device 1, a stirring mechanism 2, a leveling device 3, a walking mechanism 4 and a feeding device 5. The slurry self-suction device 1 is used to suck the slurry on the floor of the tunneling roadway. The stirring mechanism 2 is used to mix and stir the slurry and other materials into in-situ hardening material. The leveling device 3 is used to level the in-situ hardening material. The walking mechanism 4 is used to carry the in-situ hardening device and can drive the in-situ hardening device to move. The feeding device 5 is used to supply in-situ hardening raw materials.

[0043] The walking mechanism 4 comprises a vehicle body 404, which comprises at least a rectangular bearing plate structure. The vehicle body 404 is provided with wheels 403, which are driven by a fourth motor 402. A long rectangular mixed material discharge port 401 is arranged in the middle of the vehicle body 404 along the width direction of the vehicle body. The width of the vehicle body 404 is preferably slightly larger than one half of the width of the roadway or slightly larger than one third of the width of the roadway.

[0044] The coal slime water self-suction device 1 is arranged at the front of the vehicle body 404, comprising a suction head 101 arranged in a rectangular flat mouth structure with the same width as the vehicle body 404, one adjusting mechanism 104 is arranged at each end of the suction head 101, one end of the adjusting mechanism 104 is connected with the suction head 101, and the other end is connected with the vehicle body 404, the adjusting mechanism 104 is preferably a hydraulic or electric telescopic rod, and the adjusting mechanism 104 can adjust the height of the suction head 101; further comprising a self-suction device main machine 105 fixed at the front of the vehicle body 404, the self-suction device main machine 105 is driven to work by a first motor 103; the inlet of the self-suction device main machine 105 is connected with the suction head 101 through a first pipeline 104, the outlet of the self-suction device main machine 105 is connected with a coal slime water tank 108 through a first pipeline 104, and a coal slime water flow meter 106 is arranged on the first pipeline; the coal slime water tank 108 is used for storing coal slime water, and the coal slime water tank 108 is provided with a concentration meter 107; the coal slime water tank 108 is also provided with a replenishment opening 109, and the replenishment opening 109 is used for supplementing water or coal slime to adjust the coal slime water to a suitable concentration;

[0045] The stirring mechanism 2 is arranged in the middle of the vehicle body 404 and located above the mixed material discharge opening 401, the stirring mechanism 2 comprises a stirring barrel 207, a stirring frame 204 is arranged on the stirring barrel 207, the stirring frame 204 is driven by a second motor 205 to stir and mix the material in the stirring barrel 207; the stirring barrel 207 is connected with the slag feeding opening 201, the geopolymer feeding opening 202, the activator feeding opening 203 and the coal slime water tank 108 discharge opening respectively through a second pipeline 206; the stirring barrel 207 is also provided with a mixed discharge opening (not shown in the figure), the mixed discharge opening of the stirring barrel 207 is communicated with the mixed material discharge opening 401 for discharging along the width direction of the whole vehicle body 404;

[0046] The feeding device 5 can be provided separately as required or on the vehicle body 404. The feeding device 5 is provided with four feeding devices 5 for providing coal slime, slag, geopolymer and activator respectively, that is, the discharge ports 505 of the four feeding devices 5 are respectively communicated with the material supplementing port 109, the slag feeding port 201, the geopolymer feeding port 202 and the activator feeding port 203; the feeding device 5 has the same mechanism, which comprises a bin 501, the bin 501 is preferably a conical barrel structure, the upper part is an inlet and the lower part is an outlet, a valve 502 is arranged at the outlet of the bin 501, then connected with the third pipeline 506 on the upper side of the pipe wall, one end of the third pipeline 506 is connected with a fan 503, the fan 503 provides power for the flow of the material, the other end of the third pipeline 506 is a discharge port 505, a second flow meter 504 is arranged at the end of the third pipeline 506 close to the discharge port 505; further comprising a water pump (not shown in the figure), the water pump is used to provide water when the concentration of coal slime in the coal slime tank 108 is high, the water pump can be provided to supply water to the coal slime tank 108 or to the stirring barrel 207, and preferably to supply water to the stirring barrel 207;

[0047] The flattening device 3 is arranged at the rear of the vehicle body 404, two ear plates 309 are arranged at the rear of the vehicle body 404, a flattening roller 302 is arranged between the two ear plates 309, the flattening roller 302 is rotationally connected with the two ear plates, the flattening roller 302 is driven to rotate by a third motor 301, and is used for flattening the discharged in-situ hardening material, the ear plate 309 is provided with a vertical guide rail 307, the end of the flattening roller 302 can move up and down in the guide rail 307, the flattening roller 302 at both ends can adjust the position in the guide rail 307 (can be adjusted to different relative positions of the guide rail 307) through a first adjusting component (not shown in the figure); An auxiliary baffle 305 is further arranged at each of the ear plates 309 on both sides of the vehicle body 404, the height and pitch angle of the auxiliary baffle 305 relative to the vehicle body 404 (ear plate 309) can be adjusted through a second adjusting component (not shown in the figure), so as to block the in-situ hardening material as much as possible to prevent it from overflowing to both sides; The first adjusting component and the second adjusting component are preferably hydraulic or electric telescopic rods, and appropriate number can be arranged according to needs; A laser emitter 304 is arranged on each of the two ear plates 309, and a target paper 307 is further arranged at the rear of the vehicle body 404, the target paper 307 is provided with a horizontal line 308 as a horizontal reference, and the horizontal line 308 always remains horizontal; A camera 303 is further arranged at the tail of the vehicle body 404, the camera is used for collecting the positions of a left laser point 3041 and a right laser point 3042 of the laser emitter 304 on the target paper 307, obtaining the inclination amount of both sides of the vehicle body 404, and the left laser point 3041 and the right laser point 3042 are emitted by the two laser emitters 304 respectively, the relative positions of the left laser point 3041, the right laser point 3042 and the horizontal line 308 can be used to adjust the position of the end of the flattening roller 3 in the guide rail 306 on one side or both sides, so that the in-situ hardening pavement laid always maintains the same height;

[0048] The control device 6 is further arranged, and the control device 6 is used for controlling the work of each component.

[0049] Embodiment two

[0050] As Figures 1-4 shown, the application further proposes a coal mine roadway coal slurry in-situ hardening method, and the coal mine roadway coal slurry in-situ hardening device of embodiment one is used, and the method comprises the following steps:

[0051] S1: Dividing the tunneling roadway into two or three parts along the width direction, and the width of each part matches the width of the vehicle frame 404;

[0052] S2: The in-situ hardening device is set at a flat position, the height of the suction head 101 is adjusted by the adjusting mechanism so that the suction head 101 can suck the coal slurry water under it clean, the position of the flattening roller 302 is adjusted by the first adjusting component to determine the appropriate laying height; the target paper 307 is set to the appropriate height so that the left laser point 3041 and the right laser point 3042 emitted by the laser emitter 304 at this time are located on the horizontal line 308; then the height position of the target paper 307 is always kept unchanged, so that the height of the laid road surface top is flat rather than undulating; the flattening baffle 305 is adjusted by the second adjusting component to make its bottom stick to the ground;

[0053] S3: The appropriate proportion of coal slurry, slag, geopolymer, activator and water is determined;

[0054] S4: The coal slurry water in-situ hardening device is controlled to move forward, the suction head 101 sucks the coal slurry water under it to the coal slurry water tank 108, the proportion of coal slurry and water in the sucked coal slurry water is obtained according to the coal slurry water concentration meter 106, the coal slurry is added to the coal slurry water tank 108 by the feeding device 5 or the water is added to the coal slurry water tank 108 or the stirring tank 207 by the water pump, so that the proportion of coal slurry and water reaches the designed proportion; the slag, geopolymer, activator or the slag, geopolymer, activator and water are added to the stirring tank 207 according to the designed proportion; the stirring frame 204 is used for stirring and mixing uniformly; and the in-situ hardening material is discharged to the ground through the mixing discharge port and the mixture discharge port 401;

[0055] At the same time, the positions of the left laser point 3041 and the right laser point 3042 emitted by the laser emitter 304 on the target paper 307 are obtained by photographing by the camera 303, and according to the relative positions of the left laser point 3041 and the right laser point 3042 and the horizontal line 308, the height of the flattening roller 302 is adjusted by the first adjusting component, so that the left laser point 3041 and the right laser point 3042 emitted by the laser emitter 304 are always on the horizontal line 308, and then the height of the laid road surface is consistent;

[0056] S5: The steps S1-S4 are installed one by one for each part of construction;

[0057] S6: As the advancing working face advances, the newly generated coal slurry water floor situation of the advancing roadway is installed by the steps S1-S5.

[0058] The foregoing description of the disclosed embodiments is presented for purposes of clarity and description and is not intended to limit the inventive concepts to the precise embodiments described. Various modifications to the described embodiments will be readily apparent to those with ordinary skill in the art and can be made without departing from the spirit or scope of the inventive concepts defined by the appended claims. Thus, the inventive concepts are not intended to be limited to the embodiments described herein but rather are to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for in-situ hardening of coal slurry in a coal mine tunnel, using a coal mine tunnel coal slurry in-situ hardening device, the coal mine tunnel coal slurry in-situ hardening device comprising a coal slurry self-suction device, a stirring mechanism, a leveling device, and a traveling mechanism; The traveling mechanism comprises a vehicle body, which comprises at least one rectangular bearing plate structure; a rectangular mixture discharge port is arranged in the middle of the vehicle body along the width direction of the vehicle body; The coal slurry self-suction device is arranged at the front of the vehicle body and comprises a suction head, which is arranged in a rectangular flat mouth structure with the same width as the vehicle body; the coal slurry self-suction device further comprises a main machine, which is fixed to the front of the vehicle body; the inlet of the main machine is connected to the suction head through a first pipeline, and the outlet of the main machine is connected to a coal slurry tank through a first pipeline, and a coal slurry flow meter is arranged on the first pipeline; the coal slurry tank is provided with a concentration meter; the coal slurry tank is further provided with a replenishment port; The stirring mechanism is arranged in the middle of the vehicle body and located above the mixture discharge port; the stirring mechanism comprises a stirring barrel, which is provided with a stirring frame; the stirring barrel is connected to a slag inlet, a geopolymer inlet, an activator inlet, and a coal slurry tank outlet through a second pipeline; the stirring barrel is further provided with a mixed discharge port, which is in communication with the mixture discharge port and used for discharging along the width direction of the vehicle body; The leveling device is arranged at the rear of the vehicle body; two ear plates are arranged at the rear of the vehicle body, and a leveling roller is arranged between the two ear plates; the leveling roller is rotatably connected to the two ear plates; the ear plates are provided with vertical guide rails; the ends of the leveling roller move up and down in the guide rails to adjust the position of the leveling roller in the guide rails; a laser emitter is arranged on each of the two ear plates; a target paper is further arranged at the rear of the vehicle body; the target paper is provided with a horizontal line as a horizontal reference; the horizontal line is always kept horizontal; a camera is further arranged at the tail of the vehicle body; the camera is used to collect the positions of left and right laser points of the laser emitter on the target paper and obtain the inclination of the two sides of the vehicle body; characterized in that The method comprises the following steps: S1: divide the tunnel into two or three parts along the width direction, and the width of each part matches the width of the vehicle body; S2: arrange the in-situ hardening device at a flat position, adjust the suction head to a suitable position, and adjust the position of the leveling roller to determine the appropriate laying height; adjust the height of the target paper to a suitable height so that the left and right laser points emitted by the laser emitter are located on the horizontal line; then keep the height of the target paper unchanged; S3: determine the appropriate ratio of coal slurry, slag, geopolymer, activator, and water; S4: control the coal slurry in-situ hardening device to move forward; the suction head sucks the coal slurry at the lower part to the coal slurry tank; according to the coal slurry concentration meter, the ratio of coal slurry and water in the sucked coal slurry is obtained, and coal slurry is added to the coal slurry tank or water is added to the coal slurry tank or the stirring tank to make the ratio of coal slurry and water reach the designed ratio; according to the designed ratio, slag, geopolymer, and activator are added to the stirring tank; the stirring frame is used for stirring and mixing uniformly; And through the mixing of the discharge port and the mixture discharge port to the ground to release the in-situ hardening material; At the same time, the positions of the left and right laser points emitted by the laser emitter on the target paper are obtained by taking pictures through the camera, and the height of the flattening roller is adjusted according to the relative positions of the left and right laser points and the horizontal line, so that the left and right laser points emitted by the laser emitter are always on the horizontal line. S5: Install steps S1-S4 one by one for each part of construction; S6: As the advancing face advances, the newly generated coal slime water floor condition is excavated and the installation steps S1-S5 are constructed.

2. The method for in-situ hardening of coal mine roadway slurry water according to claim 1, characterized in that, The vehicle body is provided with wheels, and the wheels are driven by a fourth motor; the width of the vehicle body is slightly greater than one half of the width of the roadway or slightly greater than one third of the width of the roadway.

3. The method for in-situ hardening of coal mine roadway slurry water according to claim 1, characterized in that, Each end of the suction head is provided with an adjusting mechanism, one end of the adjusting mechanism is connected to the suction head, and the other end is connected to the vehicle body; the adjusting mechanism adjusts the height of the suction head; the self-suction device main machine is driven by a first motor.

4. The method for in-situ hardening of coal mine roadway slurry water according to claim 1, characterized in that, The stirring frame is driven by a second motor to stir and mix the materials in the stirring barrel.

5. The method for in-situ hardening of coal mine roadway slurry water according to claim 1, characterized in that, It also includes a feeding device, which is provided with four, respectively for providing coal slime, slag, geopolymer, activator.

6. The method for in-situ hardening of coal mine roadway slurry water according to claim 5, characterized in that, The feeding device includes a hopper, a valve is arranged at the outlet of the hopper, and then connected with the upper side of the third pipeline wall, one end of the third pipeline is connected with the fan and the other end is the discharge port, and a second flow meter is arranged at the end of the third pipeline close to the discharge port.

7. The method for in-situ hardening of coal mine roadway slurry water according to claim 1, characterized in that, It also includes a water pump, which is arranged to supply water to the coal slime tank or to the stirring barrel.

8. The method for in-situ hardening of coal mine roadway slurry water according to claim 1, characterized in that, The flattening roller is driven to rotate by a third motor, and an auxiliary baffle is also arranged at each ear plate on both sides of the vehicle body, and the height and pitch angle of the auxiliary baffle relative to the vehicle body can be adjusted by a second adjusting component.

9. The method for in-situ hardening of coal mine roadway slurry water according to claim 1, characterized in that, It also includes a control device for controlling the operation of each component.

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