Intermittent grouting device for mine

Abstract

The utility model discloses a mining intermittent grouting device, and relates to the technical field of mining. The mining intermittent grouting device comprises a test bottom plate, a movable piston and a driving motor, and a mixing box and a grouting box are fixedly mounted at the top of the test bottom plate. According to the mining intermittent grouting device, the movable piston can be located in the grouting box to move, in this way, when slurry water flows into the grouting box through the material conveying pipe, the slurry water can be extruded into a rock sample by moving the movable piston, and when the movable piston moves, the slurry water flows into the grouting box through the material conveying pipe; due to the fact that the outer wall of the movable piston is in close contact with the inner wall of the grouting box, grout in the mixing box cannot flow into the grouting box through the material conveying pipe, the grout can flow into the grouting box again only after the movable piston is reset, intermittent grouting treatment can be achieved, the grouting capacity of each time is in a fixed state, and the grouting efficiency is improved. And the situation of excessive or insufficient slurry water injection is avoided, and the accuracy of test data is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mining, in particular to a mining grouting device. Background Art

[0002] The excavation sections of the auxiliary inclined shaft and pedestrian inclined shaft of Gantang Coal Mine are mainly composed of siltstone and medium sandstone. In order to provide basic data support for the rapid excavation of the tunnel, the rocks in the inclined shaft are sampled, the rock samples are subjected to pre-fracture treatment, and the treated rock samples are grouted and the physical and mechanical parameters are measured.

[0003] Therefore, when testing rock samples, slurry water needs to be poured into multiple groups of rock samples according to the test. When the interval between pouring is long, the mixed slurry water is prone to solidification and precipitation, which in turn affects the effect of subsequent slurry water pouring. Utility Model Content

[0004] The utility model aims to provide an intermittent grouting device for mining, which can solve the problem that when the interval between grouting is long, the mixed slurry water is easy to coagulate and precipitate.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an intermittent grouting device for mining, comprising a test bottom plate, a movable piston and a driving motor, a mixing box and a grouting box are fixedly installed on the top of the test bottom plate, a feed pipe is fixedly installed on the bottom of the mixing box, one end of the feed pipe is fixedly installed on the top of the grouting box and extends to the inside of the grouting box, and the other end of the feed pipe extends to the inside of the mixing box;

[0006] The grouting box is provided with a cylinder, which is used to drive the moving piston inside the grouting box to move horizontally;

[0007] A stirring rod is arranged inside the mixing box, a stirring rod is fixedly mounted on the outer wall of the stirring rod, and a driving motor is used to drive the stirring rod to rotate.

[0008] Preferably, a mounting side plate is fixedly installed on the front side of the grouting box, a cylinder is fixedly installed on one side of the mounting side plate, the free end of the cylinder extends to one side of the mounting side plate and is fixedly installed with a connecting plate, a connecting sliding rod is fixedly installed on one side of the connecting plate, one end of the connecting sliding rod extends to the interior of the grouting box and is fixedly installed on one side of the movable piston.

[0009] Preferably, the outer wall of the movable piston is in close contact with the interior of the grouting box and is not fixed.

[0010] Preferably, a grouting hose is fixedly installed on one side of the grouting box, one end of the grouting hose extends to the interior of the grouting box and the other end of the grouting hose is fixedly connected to a grouting gun.

[0011] Preferably, support rods are fixedly installed on the inner wall of the mixing box, and there are two groups of support rods. Support blocks are fixedly installed on adjacent ends of the two groups of support rods. A stirring rod is rotatably installed on the top of the support block and the inner top of the mixing box. A driving motor is fixedly installed on the top of the mixing box, and the rotating shaft of the driving motor extends to the interior of the mixing box and is fixedly installed on one end of the stirring rod.

[0012] Preferably, a feed pipe is fixedly installed on the top of the mixing box, and one end of the feed pipe extends to the interior of the mixing box. This arrangement makes it easy to place the slurry raw material in the mixing box.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the intermittent grouting device for mining can move the movable piston inside the grouting box through the setting of the cylinder, so that when the slurry flows into the inside of the grouting box through the feed pipe, the slurry can be squeezed into the inside of the rock sample by moving the movable piston, and when the movable piston moves, the outer wall of the movable piston is in close contact with the inner wall of the grouting box, and the slurry inside the mixing box cannot flow into the inside of the grouting box through the feed pipe. Only when the movable piston is reset can the slurry flow back into the inside of the grouting box, so that intermittent grouting treatment can be realized, and the capacity of each grouting is in a fixed state, avoiding the situation of too much or too little slurry being injected, and improving the accuracy of the test data, and then through the setting of the driving motor, the slurry mixed in the mixing box can be continuously stirred during grouting, avoiding the situation of precipitation and solidification of the slurry, thereby ensuring that the slurry can be discharged normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a cross-sectional view of the grouting box of the utility model;

[0017] Figure 3 It is a cross-sectional view of the mixing box of the utility model.

[0018] Figure numerals: 1. test base plate; 2. mixing box; 3. grouting box; 4. mounting side plate; 5. connecting plate; 6. connecting sliding rod; 7. cylinder; 8. moving piston; 9. slurry hose; 10. grouting gun; 11. driving motor; 12. support block; 13. support rod; 14. stirring rod; 15. feed pipe. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0020] See also Figure 1-3 The utility model provides a technical solution: an intermittent grouting device for mining, comprising a test base plate 1, a movable piston 8 and a driving motor 11, a mixing box 2 and a grouting box 3 are fixedly installed on the top of the test base plate 1, a feeding pipe 15 is fixedly installed on the bottom of the mixing box 2, one end of the feeding pipe 15 is fixedly installed on the top of the grouting box 3 and extends to the inside of the grouting box 3, and the other end of the feeding pipe 15 extends to the inside of the mixing box 2; a cylinder 7 is provided on the grouting box 3, and the cylinder 7 is used to drive the movable piston 8 to move laterally inside the grouting box 3; a stirring rod 14 is provided inside the mixing box 2, and a stirring rod 16 is fixedly installed on the outer wall of the stirring rod 14, and the driving motor 11 is used to drive the stirring rod 16 to rotate.

[0021] Furthermore, a mounting side plate 4 is fixedly installed on the front side of the grouting box 3, a cylinder 7 is fixedly installed on one side of the mounting side plate 4, a free end of the cylinder 7 extends to one side of the mounting side plate 4 and is fixedly installed with a connecting plate 5, a connecting sliding rod 6 is fixedly installed on one side of the connecting plate 5, one end of the connecting sliding rod 6 extends to the interior of the grouting box 3 and is fixedly installed with one side of a moving piston 8, an outer wall of the moving piston 8 is in close contact with the interior of the grouting box 3 and is not fixed, a grouting hose 9 is fixedly installed on one side of the grouting box 3, one end of the grouting hose 9 extends to the interior of the grouting box 3 and the other end of the grouting hose 9 is fixedly connected with a grouting gun 10, and this arrangement can move the moving piston 8 to the outside of the grouting box 3. The plug 8 is located inside the grouting box 3 and moves, so that when the slurry flows into the grouting box 3 through the delivery pipe 15, the slurry can be squeezed into the rock sample by moving the movable piston 8, and when the movable piston 8 moves, the outer wall of the movable piston 8 is in close contact with the inner wall of the grouting box 3, and the slurry inside the mixing box 2 cannot flow into the grouting box 3 through the delivery pipe 15. The slurry can only flow back into the grouting box 3 after the movable piston 8 is reset, so that intermittent grouting treatment can be realized, and the capacity of each grouting is fixed, so as to avoid the situation of injecting too much or too little slurry, and improve the accuracy of the test data.

[0022] Furthermore, support rods 13 are fixedly installed on the inner wall of the mixing box 2. There are two groups of support rods 13. Support blocks 12 are fixedly installed on the adjacent ends of the two groups of support rods 13. A stirring rod 14 is rotatably installed on the top of the support block 12 and the inner top of the mixing box 2. A driving motor 11 is fixedly installed on the top of the mixing box 2. The rotating shaft of the driving motor 11 extends to the interior of the mixing box 2 and is fixedly installed to one end of the stirring rod 14. A feeding pipe is fixedly installed on the top of the mixing box 2, and one end of the feeding pipe extends to the interior of the mixing box 2. This arrangement can continuously stir the slurry mixed in the mixing box 2 during grouting to avoid precipitation and coagulation of the slurry, thereby ensuring that the slurry can be discharged normally.

[0023] Working principle: When in use, first control the cylinder 7 to start, the cylinder 7 starts to drive the connecting plate 5 to move, the connection plate 5 moves to drive the connecting sliding rod 6 to move, and then can drive the moving piston 8 to move, and the outlet of the feed pipe 15 is blocked by moving the moving piston 8, and then the raw materials of the slurry are added to the interior of the mixing box 2, and the driving motor 11 is controlled to start, and the driving motor 11 starts to drive the stirring rod 14 to rotate, and the stirring rod 14 rotates to drive the stirring rod 16 to rotate, so that the slurry can be mixed, and then the moving piston 8 is reset by the control cylinder 7, so that the slurry flows into the interior of the grouting box 3 through the feed pipe 15, and the grouting gun 10 is inserted into the interior of the rock sample, and then the control cylinder 7 is started to move the moving piston 8, and the slurry inside the grouting box 3 is discharged into the rock sample through the grouting hose 9 and the grouting gun 10, and during grouting, the driving motor 11 is kept running to prevent the mixed slurry inside the mixing box 2 from precipitating and solidifying.

[0024] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An intermittent grouting device for mining, characterized in that: include: A test base plate (1), a mixing box (2) and a grouting box (3) are fixedly mounted on the top of the test base plate (1), a feed pipe (15) is fixedly mounted on the bottom of the mixing box (2), one end of the feed pipe (15) is fixedly mounted on the top of the grouting box (3) and extends to the interior of the grouting box (3), and the other end of the feed pipe (15) extends to the interior of the mixing box (2); A movable piston (8), a cylinder (7) is provided on the grouting box (3), and the cylinder (7) is used to drive the movable piston (8) to move horizontally inside the grouting box (3); A driving motor (11) is provided inside the mixing box (2), a stirring rod (14) is fixedly mounted on the outer wall of the stirring rod (14), and the driving motor (11) is used to drive the stirring rod (16) to rotate.

2. The intermittent grouting device for mining according to claim 1, characterized in that: A mounting side plate (4) is fixedly mounted on the front side of the grouting box (3); a cylinder (7) is fixedly mounted on one side of the mounting side plate (4); a free end of the cylinder (7) extends to one side of the mounting side plate (4) and is fixedly mounted on a connecting plate (5); a connecting sliding rod (6) is fixedly mounted on one side of the connecting plate (5); one end of the connecting sliding rod (6) extends to the interior of the grouting box (3) and is fixedly mounted on one side of a movable piston (8).

3. The intermittent grouting device for mining according to claim 2, characterized in that: The outer wall of the movable piston (8) is in close contact with the interior of the grouting box (3) and is not fixed.

4. The intermittent grouting device for mining according to claim 3, characterized in that: A grouting hose (9) is fixedly mounted on one side of the grouting box (3), one end of the grouting hose (9) extends into the interior of the grouting box (3) and the other end of the grouting hose (9) is fixedly connected to a grouting gun (10).

5. The intermittent grouting device for mining according to claim 4, characterized in that: The inner wall of the mixing box (2) is fixedly mounted with support rods (13), the number of the support rods (13) being two groups, the adjacent ends of the two groups of support rods (13) being fixedly mounted with support blocks (12), the top of the support blocks (12) and the inner top of the mixing box (2) being rotatably mounted with a stirring rod (14), the top of the mixing box (2) being fixedly mounted with a driving motor (11), the rotating shaft of the driving motor (11) extending into the interior of the mixing box (2) and being fixedly mounted with one end of the stirring rod (14).

6. The intermittent grouting device for mining according to claim 5, characterized in that: A feed pipe is fixedly mounted on the top of the mixing box (2), and one end of the feed pipe extends into the interior of the mixing box (2).

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