A grouting device for mine powder reinforcing material

Abstract

The utility model belongs to mine tunnel reinforcing technical field especially is a kind of grouting device for mine powder reinforcing material, including bottom plate, the upper surface of bottom plate near middle part is fixed with conveying mechanism, the upper surface of bottom plate four corners is installed with fixed link, the upper surface of fixed link is fixed with horizontal plate, the upper surface of horizontal plate is installed with agitator tank by weighing mechanism, agitator tank is connected with conveying mechanism by connecting mechanism, agitator tank is installed with stirring mechanism, the upper surface of agitator tank is fixed with cloth box, the upper surface of cloth box is fixed with feeding pipe, cloth box is provided with cloth mechanism, the lower surface of cloth box is evenly connected with agitator tank by discharge pipe, the utility model is more far by air bag type energy accumulator inhibiting pulsation, single trip maximum horizontal conveying distance is lower, and measurement accuracy is higher, and grouting measurement is more accurate, and powder and water mixing are more efficient and uniform.

Description

Technical Field

[0001] This utility model relates to the field of mine roadway reinforcement technology, specifically a grouting device for mine powder reinforcement materials. Background Technology

[0002] In coal mine roadway support engineering, anchor mesh support and grouting reinforcement methods are commonly used. As the mining depth of coal mines increases, higher requirements are placed on the support strength and quality, and grouting reinforcement is a very important part of this process.

[0003] Currently, as mines extend deeper, the surrounding rock experiences high stress, developed fissures, and low temperature and high humidity. Traditional cement-based grouting materials and equipment often use single-liquid piston pumps, which are poorly adapted to high-viscosity, high-solids-content grouts. This results in large fluctuations in pumping pressure, easy pipe blockage, and large metering errors, leading to poor grouting effects. Furthermore, the mixing of powder and water relies solely on baffles inside the tank, resulting in short mixing time and poor homogeneity, leading to a high coefficient of variation in reinforcement strength. Therefore, we propose a grouting device for mine powder reinforcement materials to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a grouting device for mineral powder reinforcement materials, which solves the problems mentioned in the background art.

[0005] (II) Technical Solution To achieve the above objectives, this utility model specifically adopts the following technical solution: A grouting device for mineral powder reinforcement materials includes a base plate. Rollers are fixedly mounted on the lower rectangular surface of the base plate. A conveying mechanism is fixedly mounted near the center of the upper surface of the base plate. Fixed rods are mounted at the four corners of the upper surface of the base plate. A horizontal plate is fixedly mounted on the upper surface of the fixed rods. A mixing tank is mounted on the upper surface of the horizontal plate via a weighing mechanism. The mixing tank is connected to the conveying mechanism via a connecting mechanism. A mixing mechanism is installed inside the mixing tank. A material distribution box is fixedly mounted on the upper surface of the mixing tank. A feeding pipe is fixedly mounted on the upper surface of the material distribution box. A material distribution mechanism is provided inside the material distribution box. The lower surface of the material distribution box is uniformly connected to the mixing tank via a discharge pipe. An online viscometer is fixedly embedded on the right side wall of the mixing tank near the lower side.

[0006] Furthermore, the conveying mechanism includes a hydraulic cylinder, a dual-cylinder hydraulic piston pump, an airbag accumulator, and a grouting pipe. The hydraulic cylinder, the dual-cylinder hydraulic piston pump, and the airbag accumulator are installed on the upper surface of the base plate. The hydraulic cylinder is connected to the dual-cylinder hydraulic piston pump and the airbag accumulator respectively through pipelines. The airbag accumulator is connected to the discharge port of the dual-cylinder hydraulic piston pump. A grouting pipe is installed at the piston port of the dual-cylinder hydraulic piston pump.

[0007] Furthermore, the weighing mechanism includes a support rod, a weighing sensor, a fixing block, and a control box. The support rod is rectangular and fixedly installed on the upper surface of the horizontal plate. The upper surface of the support rod is mounted on the fixing block via the weighing sensor. The fixing block is installed on the front and rear sides of the mixing tank. The control box is installed on the upper surface of the horizontal plate near the front side. The control box is electrically connected to the weighing sensor, the online concentration meter, and the hydraulic cylinder, respectively.

[0008] Furthermore, the connection mechanism includes a hose and a check valve. The hose connects the lower surface of the mixing tank to the grouting pipe, and the hose is equipped with a check valve.

[0009] Furthermore, a through hole is provided on the horizontal plate corresponding to the hose.

[0010] Furthermore, the mixing mechanism includes a forced kneading pump, a rotating shaft, and mixing blades. The forced kneading pump is installed on the upper surface of the horizontal plate. The rotating shaft is installed on the output shaft of the forced kneading pump and is inserted into the mixing tank. The mixing blades are evenly distributed on the outer surface of the rotating shaft inside the mixing tank.

[0011] Furthermore, the fabric feeding mechanism includes a bearing assembly, a spiral feeding rod, and a motor. Two spiral feeding rods are mirror-mounted on the left and right side walls of the fabric box via the bearing assembly, and the left and right spiral feeding rods are fixedly connected. The input shaft of the spiral feeding rod is fixedly connected to the output shaft of the motor, and the motor is fixedly mounted on the right side of the fabric box.

[0012] (III) Beneficial Effects Compared with the prior art, this utility model provides a grouting device for mineral powder reinforcement materials, which has the following beneficial effects: This invention uses a pneumatic accumulator in the conveying mechanism to suppress the pulsation of the dual-cylinder hydraulic piston pump, resulting in a longer maximum horizontal conveying distance and a lower blockage rate in a single trip of the grouting pipe. Furthermore, a weighing sensor is used to weigh the mixing tank, which improves the accuracy of grouting measurement. Finally, the mixing mechanism makes the powder and water mix more efficiently and evenly. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2This is a cross-sectional structural diagram of the mixing tank of this utility model; Figure 3 This is a cross-sectional view of the fabric box of this utility model.

[0014] In the diagram: 1. Base plate; 2. Roller; 3. Conveying mechanism; 301. Hydraulic cylinder; 302. Double-cylinder hydraulic piston pump; 303. Airbag accumulator; 304. Grouting pipe; 4. Fixed rod; 5. Horizontal plate; 6. Weighing mechanism; 601. Support rod; 602. Weighing sensor; 603. Fixed block; 604. Control box; 7. Mixing tank; 8. Connecting mechanism; 801. Hoses; 802. Check valve; 9. Mixing mechanism; 901. Forced kneading pump; 902. Rotating shaft; 903. Mixing blade; 10. Material distribution box; 11. Feeding pipe; 12. Material distribution mechanism; 121. Bearing assembly; 122. Spiral feed rod; 123. Motor; 13. Discharge pipe; 14. Online viscometer; 15. Through hole. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0016] like Figures 1-3 As shown in the figure, an embodiment of the present invention discloses a grouting device for mineral powder reinforcement materials, including a base plate 1. Rollers 2 are fixedly installed on the lower surface of the base plate 1 in a rectangular shape. A conveying mechanism 3 is fixedly installed near the center of the upper surface of the base plate 1. Fixing rods 4 are installed at the four corners of the upper surface of the base plate 1. A horizontal plate 5 is fixedly installed on the upper surface of the fixing rods 4. A mixing tank 7 is installed on the upper surface of the horizontal plate 5 through a weighing mechanism 6. The mixing tank 7 is connected to the conveying mechanism 3 through a connecting mechanism 8. A stirring mechanism 9 is installed inside the mixing tank 7. A material distribution box 10 is fixedly installed on the upper surface of the mixing tank 7. A feeding pipe 11 is fixedly installed on the upper surface of the material distribution box 10. A material distribution mechanism 12 is provided inside the material distribution box 10. The lower surface of the material distribution box 10 is uniformly connected to the mixing tank 7 through a discharge pipe 13. An online viscometer 14 is fixedly embedded on the right side wall of the mixing tank 7 near the lower side.

[0017] like Figure 2As shown, in some embodiments, the conveying mechanism 3 includes a hydraulic cylinder 301, a dual-cylinder hydraulic piston pump 302, an airbag accumulator 303, and a grouting pipe 304. The hydraulic cylinder 301, the dual-cylinder hydraulic piston pump 302, and the airbag accumulator 303 are installed on the upper surface of the base plate 1. The hydraulic cylinder 301 is connected to the dual-cylinder hydraulic piston pump 302 and the airbag accumulator 303 respectively through pipelines. The airbag accumulator 303 is connected to the discharge port of the dual-cylinder hydraulic piston pump 302. The grouting pipe 304 is installed at the piston port of the dual-cylinder hydraulic piston pump 302.

[0018] In this embodiment, the hydraulic cylinder 301 causes the piston of the dual-cylinder hydraulic piston pump 302 to move within the grouting pipe 304, thereby achieving the effect of grouting. During the grouting process, the pressure within the hydraulic cavity of the dual-cylinder hydraulic piston pump 302 is adjusted by the airbag accumulator 303 to reduce pressure pulsation.

[0019] like Figure 1 As shown, in some embodiments, the weighing mechanism 6 includes a support rod 601, a weighing sensor 602, a fixing block 603, and a control box 604. The support rod 601 is rectangularly fixedly installed on the upper surface of the horizontal plate 5. The upper surface of the support rod 601 is mounted to the fixing block 603 via the weighing sensor 602. The fixing block 603 is installed on the front and rear sides of the mixing tank 7. The control box 604 is installed on the upper surface of the horizontal plate 5 near the front side. The control box 604 is electrically connected to the weighing sensor 602, the online concentration meter, and the hydraulic cylinder 301.

[0020] In this embodiment, the weighing sensor 602 can weigh the mixing tank 7 through the fixing block 603, record the weight of the injected powder, and measure the weight of the delivered slurry.

[0021] like Figure 2 As shown, in some embodiments, the connecting mechanism 8 includes a hose 801 and a check valve 802. The hose 801 connects the lower surface of the mixing tank 7 to the grouting pipe 304, and the hose 801 is provided with a check valve 802.

[0022] In this embodiment, the hose 801 allows the slurry in the mixing tank 7 to flow into the grouting pipe 304, and the check valve 802 prevents the slurry in the grouting pipe 304 from flowing back through the hose 801. The hose 801 does not exert a downward force on the mixing tank 7, and therefore does not hinder the weighing of the mixing tank 7.

[0023] like Figure 2 As shown, in some embodiments, a through hole 15 is provided on the horizontal plate 5 corresponding to the flexible hose 801.

[0024] In this embodiment, the through hole 15 meets the requirements for the passage and installation of the flexible hose 801 on the horizontal plate 5.

[0025] like Figure 2 As shown, in some embodiments, the stirring mechanism 9 includes a forced kneading pump 901, a rotating shaft 902, and stirring blades 903. The forced kneading pump 901 is installed on the upper surface of the horizontal plate 5. The rotating shaft 902 is installed on the output shaft of the forced kneading pump 901 and is inserted into the mixing tank 7. The stirring blades 903 are evenly distributed on the outer surface of the rotating shaft 902 inside the mixing tank 7.

[0026] In this embodiment, the forced kneading pump 901 adopts a stator-rotor structure with a gap of 0.2mm, which enables the output shaft of the forced kneading pump 901 to drive the stirring blades 903 on the rotating shaft 902 to rotate. The stirring blades 903 stir the slurry in the mixing tank 7, and the slurry achieves homogeneity within 30 seconds through three shearings and four folds.

[0027] like Figure 3 As shown, in some embodiments, the fabric feeding mechanism 12 includes a bearing assembly 121, a spiral feeding rod 122, and a motor 123. Two spiral feeding rods 122 are mirror-mounted on the left and right side walls of the fabric box 10 via the bearing assembly 121, and the left and right spiral feeding rods 122 are fixedly connected to each other. The input shaft of the spiral feeding rod 122 is fixedly connected to the output shaft of the motor 123, and the motor 123 is fixedly mounted on the right side of the fabric box 10.

[0028] In this embodiment, the motor 123 drives the left and right mirror-arranged spiral feeding rods 122 to rotate. The spiral feeding rods 122 push the powder injected into the feeding pipe 11 into the feeding box 10 to the left and right sides, so that the powder flows into the mixing tank 7 through the discharge pipes 13 evenly arranged on the lower side.

[0029] In use, the powder is poured into the feeding box 10 through the feeding pipe 11. Then, the motor 123 in the feeding mechanism 12 drives the left and right mirror-shaped spiral feeding rods 122 to rotate. The spiral feeding rods 122 push the powder injected into the feeding box 10 through the feeding pipe 11 to the left and right sides, so that the powder flows into the mixing tank 7 through the evenly distributed discharge pipes 13 on the lower side, making the powder evenly distributed in the mixing tank 7. Then, an appropriate amount of water is injected into the mixing tank 7 through the feeding pipe 11. During this process, the weighing sensor 602 in the weighing mechanism 6 can weigh the mixing tank 7 through the fixing block 603, record the weight of the injected powder, and feed the information back to the control box 604. The information is displayed on the operation display screen on the right side of the control box 604. Finally, the forced kneading pump 9 in the mixing mechanism 9 is activated. The output shaft of 01 drives the stirring blade 903 on the rotating shaft 902 to rotate. The stirring blade 903 stirs the slurry in the mixing tank 7. The slurry is sheared three times and folded four times, and reaches homogeneity within 30 seconds. After stirring, the piston of the double-cylinder hydraulic piston pump 302 moves in the grouting pipe 304 through the hydraulic cylinder 301 in the conveying mechanism 3 to achieve the effect of grouting. During the grouting process, the pressure in the hydraulic cavity of the double-cylinder hydraulic piston pump 302 is adjusted by the air bladder accumulator 303 to reduce pressure pulsation. At the same time, the weighing sensor 602 weighs the weight of the mixing tank 7 and obtains the weight reduction, which is the weight of grouting. This makes the maximum horizontal conveying distance of the grouting pipe 304 longer in a single trip, reduces the pipe blockage rate, improves the grouting metering accuracy, and makes the mixing of powder and water more efficient and uniform.

[0030] In summary, the grouting device for the mining powder reinforcement material suppresses pulsation through the airbag accumulator 303, resulting in a longer maximum horizontal conveying distance per trip, a lower pipe blockage rate, higher metering accuracy, and more accurate grouting metering, making the mixing of powder and water more efficient and uniform.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A grouting device for mine powder reinforcement material, comprising a base plate (1), characterized in that: The lower surface of the base plate (1) is rectangularly fixed with rollers (2). The upper surface of the base plate (1) is fixed with a conveying mechanism (3) near the center. The upper surface of the base plate (1) is fixed with four corners with fixing rods (4). The upper surface of the fixing rods (4) is fixed with a horizontal plate (5). The upper surface of the horizontal plate (5) is fixed with a mixing tank (7) via a weighing mechanism (6). The mixing tank (7) is connected to the conveying mechanism (3) via a connecting mechanism (8). The mixing tank (7) is installed with a stirring mechanism (9). The upper surface of the mixing tank (7) is fixed with a material distribution box (10). The upper surface of the material distribution box (10) is fixed with a feeding pipe (11). The material distribution box (10) is provided with a material distribution mechanism (12). The lower surface of the material distribution box (10) is uniformly connected to the mixing tank (7) via a discharge pipe (13). The right side wall of the mixing tank (7) is fixedly embedded with an online viscometer (14) near the lower side.

2. The grouting device for mine powder reinforcement material according to claim 1, characterized in that: The conveying mechanism (3) includes a hydraulic cylinder (301), a double-cylinder hydraulic piston pump (302), an airbag accumulator (303), and a grouting pipe (304). The hydraulic cylinder (301), the double-cylinder hydraulic piston pump (302), and the airbag accumulator (303) are installed on the upper surface of the base plate (1). The hydraulic cylinder (301) is connected to the double-cylinder hydraulic piston pump (302) and the airbag accumulator (303) through pipelines. The airbag accumulator (303) is connected to the outlet of the double-cylinder hydraulic piston pump (302). The grouting pipe (304) is installed at the piston port of the double-cylinder hydraulic piston pump (302).

3. The grouting device for mine powder reinforcement material according to claim 1, characterized in that: The weighing mechanism (6) includes a support rod (601), a weighing sensor (602), a fixing block (603), and a control box (604). The support rod (601) is rectangularly fixed on the upper surface of the horizontal plate (5). The upper surface of the support rod (601) is mounted on the fixing block (603) via the weighing sensor (602). The fixing block (603) is mounted on the front and rear sides of the mixing tank (7). The control box (604) is mounted on the upper surface of the horizontal plate (5) near the front side. The control box (604) is electrically connected to the weighing sensor (602), the online concentration meter, and the hydraulic cylinder (301).

4. The grouting device for mine powder reinforcement material according to claim 1, characterized in that: The connecting mechanism (8) includes a hose (801) and a check valve (802). The hose (801) connects the lower surface of the mixing tank (7) to the grouting pipe (304). The hose (801) is equipped with a check valve (802).

5. The grouting device for mine powder reinforcement material according to claim 4, characterized in that: A through hole (15) is provided on the horizontal plate (5) corresponding to the hose (801).

6. The grouting device for mine powder reinforcement material according to claim 1, characterized in that: The stirring mechanism (9) includes a forced kneading pump (901), a rotating shaft (902), and stirring blades (903). The forced kneading pump (901) is installed on the upper surface of the horizontal plate (5). The rotating shaft (902) is installed on the output shaft of the forced kneading pump (901), and the rotating shaft (902) is inserted into the stirring tank (7). The stirring blades (903) are evenly distributed on the outer surface of the rotating shaft (902) inside the stirring tank (7).

7. The grouting device for mine powder reinforcement material according to claim 1, characterized in that: The fabric feeding mechanism (12) includes a bearing assembly (121), a spiral feeding rod (122), and a motor (123). Two spiral feeding rods (122) are mirror-mounted on the left and right side walls of the fabric box (10) via the bearing assembly (121), and the left and right spiral feeding rods (122) are fixedly connected. The input shaft of the spiral feeding rod (122) is fixedly connected to the output shaft of the motor (123), and the motor (123) is fixedly installed on the right side of the fabric box (10).

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