Coal mine fault grouting slurry mixing device

Abstract

The invention provides a coal mine fault grouting slurry mixing device which comprises a supporting frame, a material stirring assembly, a material storage assembly, a grouting assembly, a handle and trundles, the material stirring assembly, the material storage assembly, the grouting assembly, the handle and the trundles are installed on the supporting frame, the supporting frame is of a frame structure, the material stirring assembly is located above the material storage assembly, the grouting assembly is located on one side of the material storage assembly, and the handle is installed on one side of the supporting frame. A plurality of trundles are arranged at the lower end of the support frame. According to the coal mine fault grouting slurry mixing device, mixed grouting slurry can be stored and continuously stirred, the stirred grouting slurry is prevented from being solidified, the amount of the grouting slurry carried by each coal mine fault grouting task can be increased, the situation that the grouting slurry returns to the ground repeatedly to be supplemented with the slurry is avoided, potential safety hazards are reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the field of grouting slurry mixing, and in particular relates to a coal mine fault grouting slurry mixing device. Background Art

[0002] Fault structures in coal mines are a major geological hazard during mining. Their fractured rock layers and developed fissures can easily lead to coal wall spalling, roof collapse, and even water inrush. The coal and rock mass within the fault zone is weak and unstable, making traditional support methods difficult to effectively reinforce. Grouting technology is required to inject slurry into the fissures. Traditional slurry mixing relies on manual or mechanical mixing. Manual mixing wastes manpower, and inadequate mixing can easily lead to agglomeration and pump blockage. Traditional mechanical mixing can produce small amounts of slurry per mix, requiring multiple mixing cycles when large quantities of slurry are required. Summary of the Invention

[0003] In view of this, the present invention aims to propose a coal mine fault grouting slurry mixing device to solve the problems of insufficient manual slurry mixing, waste of manpower and small amount of slurry mixed each time by traditional mechanical mixing.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] The coal mine fault grouting slurry mixing device includes a support frame and a material mixing component, a material storage component, a grouting component, a handle and casters installed thereon respectively. The support frame is a frame structure, the material mixing component is located above the material storage component, the grouting component is located on one side of the material storage component, the handle is installed on one side of the support frame, and multiple casters are provided at the lower end of the support frame.

[0006] Furthermore, the support frame includes a first support plate, a second support plate and four support rods. The first support plate and the second support plate are arranged parallel to each other. Four support rods are arranged between the first support plate and the second support plate. The two ends of each support rod are respectively fixedly connected to the lower end of the first support plate and the upper end of the second support plate. A handle is provided on one side of the first support plate, and multiple casters are installed at the lower end of the second support plate.

[0007] Furthermore, the mixing assembly and the storage assembly are connected through a first metal tube, and a first knife switch is provided on the first metal tube. The bottoms of the mixing assembly and the storage assembly are respectively connected to the grouting assembly. A cover plate is provided on the upper end of the mixing assembly, and a funnel and a water injection pipe are respectively provided on the cover plate. One end of the water injection pipe is connected to a water source, and a flow valve is installed on the water injection pipe.

[0008] Furthermore, the mixing assembly and the storage assembly have the same structure. The mixing assembly includes a barrel and a stirring unit. One end of the stirring unit is arranged at the open end of the barrel, and the other end of the stirring unit is rotatably connected to the bottom of the barrel.

[0009] Furthermore, a first sieve plate and a second sieve plate are respectively arranged in the barrel of the mixing assembly, and a discharge port is respectively provided at the bottom and inner wall of the barrel. The first sieve plate is arranged in the bottom discharge port of the barrel, and the second sieve plate is arranged in the inner wall discharge port of the barrel. Multiple sieve holes are provided on the first sieve plate and the second sieve plate.

[0010] Furthermore, the stirring unit includes a central shaft, a stirring paddle, two scrapers, two connecting rods, two spoiler rods, a metal plate and a servo motor. The metal plate is arranged at the open end of the barrel. The central shaft is rotatably arranged on the metal plate. One end of the central shaft is rotatably connected to the bottom of the barrel, and the other end of the central shaft is fixedly connected to the output shaft of the servo motor. A plurality of stirring paddles are axially arranged on the periphery of the central shaft. The servo motor is installed on the metal plate. The two scrapers are arranged parallel to each other and the blade of each scraper abuts the inner wall of the barrel. The back of each scraper is fixedly connected to one end of a connecting rod, and the other end of each connecting rod is connected to the central shaft. The two spoiler rods are arranged parallel to each other and one end of each spoiler rod is fixed to the lower end of the metal plate, and the other end of each spoiler rod is located above a connecting rod.

[0011] Furthermore, the grouting assembly includes a vacuum pressure pump, a second metal tube, a third metal tube, a fourth metal tube, a tee, a second knife switch, a third knife switch, a fourth knife switch and a fifth metal tube. The vacuum pressure pump is arranged on the second support plate, one end of the second metal tube is installed on the side wall discharge port of the barrel of the mixing assembly, the other end of the second metal tube is installed on the branch of the tee, the second knife switch is arranged on the second metal tube, one end of the third metal tube is installed on the side wall discharge port of the barrel of the storage assembly, the other end of the third metal tube is installed at the inlet of the tee, the third knife switch is arranged on the third metal tube, the outlet of the tee is connected to one end of the fifth metal tube, the other end of the fifth metal tube is connected to the feed port of the vacuum pressure pump, one end of the fourth metal tube is connected to the discharge port of the vacuum pressure pump, the other end of the fourth metal tube is connected to the grouting head, and the fourth knife switch is arranged on the fourth metal tube.

[0012] Compared with the prior art, the coal mine fault grouting slurry mixing device of the present invention has the following beneficial effects:

[0013] (1) The coal mine fault grouting slurry mixing device of the present invention is provided with a storage component, which can store and continuously stir the mixed grouting slurry to prevent the stirred grouting slurry from solidifying. It can increase the amount of grouting slurry carried in each coal mine fault grouting task, avoid returning to the ground multiple times to replenish the slurry, reduce safety hazards and improve work efficiency.

[0014] (2) The coal mine fault grouting slurry mixing device described in the present invention is provided with a support frame and is installed with casters and handles, which transforms the support frame into a movable structure. The device can be dragged manually or pulled by a vehicle within the coal mine fault, which facilitates the flexible setting of the grouting location and plays a role in being convenient, easy to use, simple and convenient.

[0015] (3) Compared with manually stirred grouting slurry or traditional mechanically stirred grouting slurry, the coal mine fault grouting slurry mixing device of the present invention has a mixing component equipped with a sieve plate, which can ensure the uniform flow of grouting slurry without causing pipe blockage or clogging of the vacuum pressure pump and the subsequent grouting head, thereby extending the service life of the entire device and reducing the safety hazards caused by pipe or pump blockage.

[0016] (4) The coal mine fault grouting slurry mixing device described in the present invention is provided with two disruptor rods, which can change the horizontal stirring of the grouting slurry in the mixing component into horizontal and vertical stirring, thereby fully mixing the material and preventing the slurry from agglomerating and stratifying. A scraper is also provided, which can scrape off the grouting slurry adhered to the inner wall of the barrel, keeping the inner wall of the barrel clean, reducing the residue of the grouting slurry, extending the service life of the device, and reducing the difficulty of cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute part of the present invention, are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of a slurry mixing device for grouting faults in coal mines according to an embodiment of the present invention;

[0019] Figure 2 Schematic diagram of a support frame of a coal mine fault grouting slurry mixing device according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of a material mixing assembly of a coal mine fault grouting slurry mixing device according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the positional relationship between the material mixing component and the material storage component of the coal mine fault grouting slurry mixing device according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the internal structure of a material mixing component of a coal mine fault grouting slurry mixing device according to an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of a material storage component of a coal mine fault grouting slurry mixing device according to an embodiment of the present invention;

[0024] Figure 7This is a schematic diagram of the grouting components of the coal mine fault grouting slurry mixing device according to an embodiment of the present invention.

[0025] Description of reference numerals:

[0026] 1-support frame; 11-first support plate; 12-second support plate; 13-support rod; 2-mixing assembly; 21-barrel; 211-first sieve plate; 212-second sieve plate; 213-sieve hole; 22-mixing unit; 221-mixing paddle; 222-two scrapers; 223-two connecting rods; 224-two spoiler rods; 225-metal plate; 226-servo motor; 23-cover plate; 24-funnel; 25-water injection pipe; 27-first metal pipe; 28-first knife switch; 26-flow valve; 3-material storage assembly; 4-grouting assembly; 41-vacuum pressure pump; 42-second metal pipe; 43-third metal pipe; 44-fourth metal pipe; 45-tee pipe; 46-second knife switch; 47-third knife switch; 48-fourth knife switch; 49-fifth metal pipe 5-handle; 6-castor. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0030] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0031] like Figure 1 As shown, the coal mine fault grouting slurry mixing device includes a support frame 1 and a material mixing component 2, a material storage component 3, a grouting component 4, a handle 5, and casters 6 respectively mounted thereon. The support frame 1 is a frame structure, the material mixing component 2 is located above the material storage component 3, the grouting component 4 is located on one side of the material storage component 3, the handle 5 is mounted on one side of the support frame 1, and a plurality of casters 6 are provided at the lower end of the support frame 1. After the casters 6 and handle 5 are installed, the support frame 1 becomes a movable structure, allowing the device to be dragged manually or pulled by a vehicle within the coal mine fault, facilitating the flexible setting of the grouting location, and playing a role of convenience, ease of use, simplicity and convenience.

[0032] like Figure 2 As shown, the support frame 1 includes a first support plate 11, a second support plate 12 and four support rods 13. The first support plate 11 and the second support plate 12 are arranged parallel to each other. Four support rods 13 are arranged between the first support plate 11 and the second support plate 12. The two ends of each support rod 13 are respectively fixedly connected to the lower end of the first support plate 11 and the upper end of the second support plate 12. A handle 5 is provided on one side of the first support plate 11, and a plurality of casters 6 are installed at the lower end of the second support plate 12.

[0033] like Figure 3 As shown, the mixing assembly 2 and the storage assembly 3 are connected by a first metal tube 27, and a first knife switch 28 is installed on the first metal tube 27. The bottoms of the mixing assembly 2 and the storage assembly 3 are respectively connected to the grouting assembly 4. The upper end of the mixing assembly 2 is provided with a cover plate 23, and a funnel 24 and a water injection pipe 25 are respectively installed on the cover plate 23. One end of the water injection pipe 25 is connected to a water source, and a flow valve 26 is installed on the water injection pipe 25. The flow valve 26 is conventional, and the flow valve 26 model is Z2FS16. After closing the first knife switch 28 and the second knife switch 46, one end of the water injection pipe 25 is connected to the water source or liquid material, and the required volume of water or liquid material is set on the flow valve. The controller is turned on and the liquid is injected into the mixing assembly 2. When the volume passing through the flow valve 26 reaches the set value, the controller controls the flow valve to close. The required volume of solid material is weighed outside the device and added to the mixing assembly 2 through the funnel 24.

[0034] like Figure 4 As shown, the mixing component 2 and the storage component 3 have the same structure. The mixing component 2 includes a barrel 21 and a stirring unit 22. One end of the stirring unit 22 is arranged at the open end of the barrel 21, and the other end of the stirring unit 22 is rotatably connected to the bottom of the barrel 21.

[0035] like Figure 5As shown, a first sieve plate 211 and a second sieve plate 212 are respectively provided in the barrel 21 of the mixing component 2, and a discharge port is respectively provided at the bottom and inner wall of the barrel 21. The first sieve plate 211 is provided in the bottom discharge port of the barrel 21, and the second sieve plate 212 is provided in the inner wall discharge port of the barrel 21. A plurality of sieve holes 213 are provided on the first sieve plate 211 and the second sieve plate 212. When discharging the material, the stirred grouting slurry will flow out from the sieve holes 214, while the large particles of solid material that are not stirred evenly and stick together cannot pass through the sieve holes 214 and will be blocked outside the metal pipe by the sieve plates. Compared with manually stirred grouting slurry or traditional mechanically stirred grouting slurry, the mixing component 2 equipped with a sieve plate can ensure that the grouting slurry flows out evenly without causing pipe blockage or clogging the vacuum pressure pump 41 and the subsequent grouting head, thereby extending the service life of the entire device and reducing the safety hazards caused by pipe or pump blockage.

[0036] like Figure 5 As shown, the stirring unit 22 includes a center, a stirring paddle 221, two scrapers 222, two connecting rods 223, two spoiler rods 224, a metal plate 225 and a servo motor 226. The metal plate 225 is set at the open end of the barrel 21. A central shaft is rotatably set on the metal plate 225. One end of the central shaft is rotatably connected to the bottom of the barrel 21, and the other end of the central shaft is fixedly connected to the output shaft of the servo motor 226. A plurality of stirring paddles 221 are axially arranged on the periphery of the central shaft. The servo motor 226 is mounted on a metal plate 225. Two scrapers 222 are arranged parallel to each other, and the blade of each scraper 222 abuts the inner wall of the drum 21. The back of each scraper 222 is fixedly connected to one end of a connecting rod 223, the other end of each connecting rod 223 is connected to the central shaft. Two spoiler rods 224 are arranged parallel to each other, and one end of each spoiler rod 224 is fixed to the lower end of the metal plate 225, and the other end of each spoiler rod 224 is located above a connecting rod 223. The spoiler rods 224 can change the horizontal stirring of the grouting slurry in the mixing assembly 2 into horizontal and vertical stirring. The servo motor 226 is conventional technology, and the model of the servo motor 226 is BSH1002P31A2A. When the controller is turned on, the controller will send a signal to the servo motor 226. The output shaft of the servo motor 226 will rotate, and the output shaft will drive the stirring paddle 221 to rotate, stirring the grouting slurry in the mixing component 2. The grouting slurry is stirred horizontally under the drive of the stirring paddle 221. Since two spoiler rods 224 are provided, the horizontally stirred grouting slurry in the mixing component 2 can be changed to horizontal and vertical stirring. A scraper 222 is also provided. The scraper can scrape off the grouting slurry adhered to the inner wall of the barrel 21, which plays a role in fully mixing the materials, keeps the inner wall of the barrel 21 clean, reduces the residue of grouting slurry, extends the service life of the device, and reduces the difficulty of cleaning.

[0037] like Figure 6As shown, the storage assembly 3 also includes a barrel 21 and a stirring unit 22. The barrel 21 of the storage assembly 3 is arranged on the second support plate 12, and a discharge port is provided on the inner wall of the barrel 31. When a second barrel of grouting slurry is needed, the second knife switch 46 and the third knife switch are turned off, the controller controls the servo motor of the storage assembly 3 to rotate, and the first knife switch 28 is turned on. The grouting slurry stirred in the mixing assembly 2 flows into the storage assembly 3 through the first metal tube 27. At this time, the controller controls the servo motor of the storage assembly 3 to rotate and stir the grouting slurry in the storage assembly 3, and then a new portion of grouting slurry can be stirred again in the mixing assembly 2. The storage assembly 3 is provided to store and continuously stir the already mixed grouting slurry, prevent the already stirred grouting slurry from solidifying, increase the amount of grouting liquid carried in each grouting task, avoid returning to the ground multiple times to replenish the slurry, reduce safety hazards and improve work efficiency.

[0038] like Figure 7 As shown, the grouting assembly 4 includes a vacuum pressure pump 41, a second metal tube 42, a third metal tube 43, a fourth metal tube 44, a three-way pipe 45, a second knife switch 46, a third knife switch 47, a fourth knife switch 48 and a fifth metal tube 49. The vacuum pressure pump 41 is arranged on the second support plate 12, one end of the second metal tube 42 is installed on the side wall discharge port of the barrel 21 of the mixing assembly 2, the other end of the second metal tube 42 is installed on the branch of the three-way pipe 45, the second knife switch 46 is arranged on the second metal tube 42, the third metal tube 47 is installed on the fourth knife switch 48 and the fifth metal tube 49. One end of the tube 43 is installed on the side wall discharge port of the barrel 21 of the storage assembly 3, the other end of the third metal tube 43 is installed at the inlet of the three-way tube 45, the third knife switch 47 is set on the third metal tube 43, the outlet of the three-way tube 45 is connected to one end of the fifth metal tube 49, the other end of the fifth metal tube 49 is connected to the feed port of the vacuum pressure pump 41, one end of the fourth metal tube 44 is connected to the discharge port of the vacuum pressure pump 41, the other end of the fourth metal tube 44 is connected to the grouting head, and the fourth knife switch 48 is set on the fourth metal tube 44.

[0039] When grouting a small amount, close the first knife switch 28 and the third knife switch 47, open the second knife switch 46 and the fourth knife switch 48, and the controller starts the vacuum pressure pump 41. The vacuum pressure pump 41 is a prior art, and the model of the vacuum pressure pump is 07061-05. The grouting slurry flows into the feed port of the vacuum pressure pump 41 along the second metal pipe 42 and enters the grouting device from the discharge port of the vacuum pressure pump 41. When grouting a large amount, after the grouting slurry in the mixing component 2 is used up, close the second knife switch 46 and open the third knife switch 47. The grouting slurry in the mixing component 2 enters the vacuum pressure pump 41 along the third metal pipe 43 and finally enters the grouting device.

[0040] Working process of coal mine fault grouting slurry mixing device:

[0041] First, connect one end of the water injection pipe 25 to the water source or liquid material, and set the volume of water or liquid material required on the flow valve. Turn on the controller and inject the liquid into the mixing component 2. When the volume passing through the flow valve 26 reaches the set number, the controller controls the flow valve to close. Weigh the volume of solid material required outside the device and add it to the mixing component 2 through the funnel 24. The controller will send a signal to the servo motor 226. The output shaft of the servo motor 226 rotates, and the output shaft drives the stirring paddle 221 to rotate, stirring the grouting slurry in the mixing component 2. When a second bucket of grouting slurry is needed, close the second knife switch 46 and the third knife switch. The controller controls the servo motor of the storage component 3 to rotate and turns on the first knife switch 28. The grouting slurry stirred in the mixing component 2 flows into the storage component 3 through the first metal tube 27. At this time, the controller controls the servo motor of the storage component 3 to rotate and stir the grouting slurry in the storage component 3. After that, a new portion of grouting slurry can be stirred again in the mixing component 2. When grouting a small amount, close the first knife switch 28 and the third knife switch 47, open the second knife switch 46 and the fourth knife switch 48, and the controller starts the vacuum pressure pump 41. The vacuum pressure pump 41 is a prior art, and the model of the vacuum pressure pump is 07061-05. The grouting slurry flows into the feed port of the vacuum pressure pump 41 along the second metal pipe 42 and enters the grouting device from the discharge port of the vacuum pressure pump 41. When grouting a large amount, after the grouting slurry in the mixing component 2 is used up, close the second knife switch 46 and open the third knife switch 47. The grouting slurry in the mixing component 2 enters the vacuum pressure pump 41 along the third metal pipe 43 and finally enters the grouting device.

[0042] The control method of this embodiment is controlled by a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. This article is mainly used to protect mechanical devices. The control method and circuit connection are not explained in detail in this article.

[0043] The above description is only a preferred embodiment of the present invention and is 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 scope of protection of the present invention.

Claims

1. A slurry mixing device for grouting faults in coal mines, characterized by: The invention comprises a support frame (1) and a material mixing assembly (2), a material storage assembly (3), a grouting assembly (4), a handle (5) and casters (6) respectively mounted thereon; the support frame (1) is a frame structure; the material mixing assembly (2) is located above the material storage assembly (3); the grouting assembly (4) is located on one side of the material storage assembly (3); the handle (5) is mounted on one side of the support frame (1); and a plurality of casters (6) are provided at the lower end of the support frame (1).

2. The coal mine fault grouting slurry mixing device according to claim 1, characterized in that: The support frame (1) comprises a first support plate (11), a second support plate (12) and four support rods (13). The first support plate (11) and the second support plate (12) are arranged parallel to each other. Four support rods (13) are arranged between the first support plate (11) and the second support plate (12). The two ends of each support rod (13) are respectively fixedly connected to the lower end of the first support plate (11) and the upper end of the second support plate (12). A handle (5) is arranged on one side of the first support plate (11), and a plurality of casters (6) are installed at the lower end of the second support plate (12).

3. The coal mine fault grouting slurry mixing device according to claim 1, characterized in that: The material mixing component (2) and the material storage component (3) are connected via a first metal tube (27), and a first knife switch (28) is provided on the first metal tube (27). The bottoms of the material mixing component (2) and the material storage component (3) are respectively connected to the grouting component (4). A cover plate (23) is provided on the upper end of the material mixing component (2), and a funnel (24) and a water injection pipe (25) are respectively provided on the cover plate (23). One end of the water injection pipe (25) is connected to a water source, and a flow valve (26) is installed on the water injection pipe (25).

4. The coal mine fault grouting slurry mixing device according to claim 1, characterized in that: The mixing component (2) and the storage component (3) have the same structure. The mixing component (2) comprises a barrel (21) and a stirring unit (22). One end of the stirring unit (22) is arranged at the open end of the barrel (21), and the other end of the stirring unit (22) is rotatably connected to the bottom of the barrel (21).

5. The coal mine fault grouting slurry mixing device according to claim 4, characterized in that: A first sieve plate (211) and a second sieve plate (212) are respectively arranged in the barrel (21) of the mixing component (2); a discharge port is respectively provided at the bottom and inner wall of the barrel (21); the first sieve plate (211) is arranged in the discharge port at the bottom of the barrel (21); the second sieve plate (212) is arranged in the discharge port on the inner wall of the barrel (21); and a plurality of sieve holes (213) are provided on both the first sieve plate (211) and the second sieve plate (212).

6. The coal mine fault grouting slurry mixing device according to claim 4, characterized in that: The stirring unit (22) includes a central shaft, a stirring paddle (221), two scrapers (222), two connecting rods (223), two spoiler rods (224), a metal plate (225) and a servo motor (226). The metal plate (225) is arranged at the open end of the barrel (21). The central shaft is rotatably arranged on the metal plate (225). One end of the central shaft is rotatably connected to the bottom of the barrel (21). The other end of the central shaft is fixedly connected to the output shaft of the servo motor (226). A plurality of stirring paddles (221) are arranged axially on the periphery of the central shaft. The servo motor ( 226) is installed on the metal plate (225), the two scrapers (222) are arranged parallel to each other, and the blade of each scraper (222) abuts against the inner wall of the barrel (21), the back of each scraper (222) is fixedly connected to one end of a connecting rod (223), and the other end of each connecting rod (223) is connected to the central axis, and the two spoiler rods (224) are arranged parallel to each other, and one end of each spoiler rod (224) is fixed to the lower end of the metal plate (225), and the other end of each spoiler rod (224) is located above the connecting rod (223).

7. The coal mine fault grouting slurry mixing device according to claim 1, characterized in that: The grouting assembly (4) comprises a vacuum pressure pump (41), a second metal tube (42), a third metal tube (43), a fourth metal tube (44), a three-way tube (45), a second knife switch (46), a third knife switch (47), a fourth knife switch (48) and a fifth metal tube (49). The vacuum pressure pump (41) is arranged on the second support plate (12). One end of the second metal tube (42) is installed at the discharge port of the side wall of the barrel (21) of the mixing assembly (2). The other end of the second metal tube (42) is installed at the branch port of the three-way tube (45). The second knife switch (46) is arranged on the second metal tube (42). The third metal tube (47) is installed at the discharge port of the side wall of the barrel (21) of the mixing assembly (2). One end of the metal tube (43) is installed at the side wall discharge port of the barrel (21) of the storage assembly (3), the other end of the third metal tube (43) is installed at the inlet of the three-way tube (45), the third knife switch (47) is arranged on the third metal tube (43), the outlet of the three-way tube (45) is connected to one end of the fifth metal tube (49), the other end of the fifth metal tube (49) is connected to the feed port of the vacuum pressure pump (41), one end of the fourth metal tube (44) is connected to the discharge port of the vacuum pressure pump (41), the other end of the fourth metal tube (44) is connected to the grouting head, and the fourth knife switch (48) is arranged on the fourth metal tube (44).

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