Grouting and pressurizing equipment for filling gangue into side slope cavity

Abstract

This utility model relates to the technical field of grouting equipment, specifically a grouting and pressurizing device for filling slope cavities with coal gangue. It includes a slurry preparation machine body, with a grouting gun mounted outside the machine body. The slurry preparation machine body and the grouting gun are connected via a slurry pipe. The grouting gun includes a gun body with a slurry hole connected to the slurry pipe. A water inlet is also provided on the gun body, at the same height as the slurry pipe and connected to the outside via a water pipe. A handheld handle facilitates the operator's use of the grouting gun for grouting at designated locations, reducing environmental limitations on the grouting operation. Both the slurry pipe and the grouting pipe are detachable, allowing for easy replacement by the operator. If a blockage occurs, the pipe can be replaced to prevent interference with the grouting operation.

Description

Technical Field

[0001] This utility model relates to the field of grouting equipment technology, specifically a grouting pressurization device for filling slope cavities with coal gangue. Background Technology

[0002] Coal gangue slope cavities refer to internal or surface voids formed in coal gangue dumps or slopes due to long-term accumulation, weathering, or mining activities. These cavities can lead to slope instability, spontaneous combustion, or environmental pollution. There are three main causes: unfilled roadways or goafs during coal mining lead to underground cavities formed after coal gangue accumulation; loosely piled coal gangue, due to uneven compaction under its own weight, creates internal cracks or collapse cavities; and spontaneous combustion of gangue piles results in the complete burning of internal combustibles, forming a honeycomb-like void structure.

[0003] Once cavities form, they weaken the structural strength of the pile, making it prone to landslides or collapses. In addition, cavities may become channels for the accumulation of harmful gases (such as SO2 and CO), exacerbating air pollution. At the same time, vegetation is difficult to grow in the cavity area, leading to soil erosion.

[0004] Therefore, the voids need to be filled, which is usually done using grouting pressurization equipment.

[0005] For example, Chinese patent CN222614205U discloses a compaction grouting machine, comprising: an equipment support frame, a grouting pressurization device on the equipment support frame, a feeding device on the inlet of the grouting pressurization device, a compaction grouting pipe on the outlet of the grouting pressurization device, the grouting pressurization device including a grouting pressurization pump body, a feeding support plate on the inlet of the grouting pressurization pump body, a feeding mounting seat on the feeding support plate, a discharge pipe on the outlet of the grouting pressurization pump body, a feeding pipe on the discharge pipe, a grouting pipe connecting seat on the feeding pipe, a pump body drive motor on one side of the grouting pressurization pump body, and the housing of the pump body drive motor mounted on the housing of the grouting pressurization pump body through a motor fixing seat. This utility model can not only achieve rapid grouting, but also ensure stable grouting pressure and uniform grouting, further ensuring construction quality.

[0006] This grouting machine can inject grout quickly, but since filling the voids requires cement grout, it is generally impossible for the grouting machine to completely remove the grout, which can easily lead to blockage of the grouting pipe and affect the next use of the grouting machine.

[0007] To address the aforementioned problems, this utility model provides a grouting and pressurization device for filling slope cavities with coal gangue. Utility Model Content

[0008] The purpose of this invention is to provide a grouting and pressurization device for filling slope cavities with coal gangue, so as to solve the problems mentioned in the background art.

[0009] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a grouting and pressurizing device for filling slope cavities with coal gangue, including a grouting machine body, a grouting gun provided outside the grouting machine body, and the grouting machine body and the grouting gun being connected through a grout pipe;

[0010] The grouting gun includes a gun body, which has a grout hole that is connected to a grout pipe;

[0011] The gun body is equipped with a water inlet, which is at the same height as the slurry pipe and is connected to the outside through a water pipe.

[0012] The grouting gun has a grouting port at the bottom, and a grouting pipe is provided on the grouting port for injecting grout into the designated cavity.

[0013] The grouting gun is equipped with a feeding component for pushing the grout.

[0014] Ideally, both the slurry pipe and the grouting pipe can be detachably connected to the slurry preparation machine body or the grouting gun.

[0015] In a more optimized manner, the feeding assembly includes a cylinder located at the top of the grouting gun, and a pusher block is provided on the output shaft of the cylinder.

[0016] In a more optimized configuration, the push block is movably connected inside the grouting gun, and the diameter of the push block is the same as the inner diameter of the grouting gun.

[0017] In a more optimized manner, a rubber block is provided at the end of the push block, and the rubber block is attached to the inner wall of the grouting gun.

[0018] Ideally, the top of the grouting gun is equipped with a hand grip, and there is at least one hand grip.

[0019] Ideally, both the grout pipe and the injection pipe are flexible hoses.

[0020] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0021] (1) When using this utility model, the operator holds the grouting gun, places the grout pipe into the target cavity, and starts the grouting machine. The grout prepared in the grouting machine is then transported to the grouting gun through the grout pipe. Once the gun is full, the transport is stopped. At this time, the operator opens the feeding assembly, and the output shaft of the cylinder drives the pusher block to move, pushing the pusher block towards the grouting pipe. The grout is then pushed out by the pusher block and can be injected into the corresponding cavity from the grout pipe.

[0022] (2) In this utility model, the water inlet can facilitate the operator to rinse the inner wall of the grouting gun after grouting, so as to avoid the grout remaining and solidifying in it, thereby reducing the impact on the grouting gun.

[0023] (3) In this utility model, the handheld ring makes it convenient for the operator to hold the grouting gun and perform grouting operations at designated locations, reducing the environmental restrictions on grouting operations. Both the grout pipe and the grouting pipe are detachable, which makes it convenient for the operator to replace them. If a blockage occurs, the pipe can be replaced to prevent it from affecting the grouting operation. Attached Figure Description

[0024] Figure 1 This is an overall structural diagram of Example 1;

[0025] Figure 2 This is a diagram of the internal structure of a grouting gun.

[0026] The components include: 1. Pulping machine body; 2. Grouting gun; 3. Pulp pipe; 4. Pulp hole; 5. Water inlet; 6. Grouting pipe; 7. Cylinder; 8. Pushing block; 9. Hand ring. Detailed Implementation

[0027] 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.

[0028] This utility model provides a grouting and pressurization device for filling slope cavities with coal gangue, including a grouting machine body 1, and a grouting gun 2 outside the grouting machine body 1. The grouting machine body 1 and the grouting gun 2 are connected through a grout pipe 3. The grouting gun 2 includes a gun body, and a grout hole 4 is provided on the gun body, which is connected to the grout pipe 3. A water inlet 5 is opened on the gun body, and the water inlet 5 is at the same height as the grout pipe 3 and is connected to the outside through a water pipe.

[0029] The grouting gun 2 has a grouting port at its bottom, and a grouting pipe 6 is provided on the grouting port for injecting grout into a designated cavity. The grouting gun 2 also has a feeding assembly for pushing the grout. The feeding assembly includes a cylinder 7, which is located at the top of the grouting gun 2. A pushing block 8 is mounted on the output shaft of the cylinder 7. The pushing block 8 is movably connected inside the grouting gun 2, and its diameter is the same as the inner diameter of the grouting gun 2. A rubber block is provided at the end of the pushing block 8, and the rubber block adheres to the inner wall of the grouting gun 2.

[0030] In use, the operator holds the grouting gun 2 and places the grout pipe 3 into the target cavity. After starting the pulping machine 1, the grout prepared in the pulping machine 1 is transported to the grouting gun 2 through the grout pipe 3. Once full, the transport is stopped. At this time, the operator opens the feeding assembly, and the output shaft of the cylinder 7 drives the pusher block 8 to move, pushing the pusher block 8 towards the grouting pipe 6. The grout is then pushed out by the pusher block 8 and can be injected into the corresponding cavity from the grout pipe 3.

[0031] The top of the grouting gun 2 is equipped with a hand-held ring 9, and there is at least one hand-held ring 9. Both the slurry pipe 3 and the grouting pipe 6 can be detachably connected to the slurry preparation machine body 1 or the grouting gun 2. Both the slurry pipe 3 and the grouting pipe 6 are flexible hoses.

[0032] The water inlet 5 allows operators to easily rinse the inner wall of the grouting gun 2 after grouting, preventing grout residue and solidification, thus reducing the impact on the grouting gun 2.

[0033] The handheld ring 9 allows operators to easily hold the grouting gun 2 and perform grouting operations at designated locations, reducing environmental limitations on the grouting operation. Both the grout pipe 3 and the grouting pipe 6 are detachable, allowing for easy replacement by the operator. If a blockage occurs, the pipe can be replaced to prevent disruption to the grouting operation.

[0034] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A grouting and pressurization device for filling slope cavities with coal gangue, characterized in that: It includes a pulping machine body (1), and a grouting gun (2) is provided outside the pulping machine body (1). The pulping machine body (1) and the grouting gun (2) are connected through a slurry pipe (3). The grouting gun (2) includes a gun body, on which a grout hole (4) is provided, which is connected to the grout pipe (3); The gun body is provided with a water inlet (5), the water inlet (5) is at the same height as the slurry pipe (3), and is connected to the outside through a water pipe; The grouting gun (2) has a grouting port at the bottom and a grouting pipe (6) on the grouting port for grouting into the designated cavity; The grouting gun (2) is equipped with a feeding component for pushing grout.

2. The grouting and pressurization equipment for filling slope cavities with coal gangue according to claim 1, characterized in that: Both the slurry pipe (3) and the grouting pipe (6) can be detachably connected to the pulping machine body (1) or the grouting gun (2).

3. The grouting and pressurization equipment for filling slope cavities with coal gangue according to claim 1, characterized in that: The feeding assembly includes a cylinder (7), which is located at the top of the grouting gun (2), and a pusher block (8) is provided on the output shaft of the cylinder (7).

4. The grouting and pressurization equipment for filling slope cavities with coal gangue according to claim 3, characterized in that: The push block (8) is movably connected inside the grouting gun (2), and the diameter of the push block (8) is the same as the inner diameter of the grouting gun (2).

5. The grouting and pressurization equipment for filling slope cavities with coal gangue according to claim 4, characterized in that: The end of the push block (8) is provided with a rubber block, which is attached to the inner wall of the grouting gun (2).

6. The grouting and pressurization equipment for filling slope cavities with coal gangue according to claim 1, characterized in that: The top of the grouting gun (2) is provided with a hand ring (9), and there is at least one hand ring (9).

7. The grouting and pressurization equipment for filling slope cavities with coal gangue according to claim 1, characterized in that: Both the grout pipe (3) and the injection pipe (6) are flexible hoses.

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