Self-propelled filling slurry blocking device and slurry blocking method

Abstract

The present invention discloses a self-propelled filling slurry blocking equipment and slurry blocking method, including a vehicle body, a lifting system, a slurry blocking assembly and a propping system, wherein the lifting system is located inside the vehicle body, the slurry blocking assembly is located on one side of the vehicle body, and the propping system is located between the slurry blocking assembly and the vehicle body. The slurry blocking assembly is composed of a slurry blocking frame, a metal hanging plate and a metal hanging net, and the slurry blocking frame is designed to be foldable at the top and bottom, with a small size and convenient for lowering into the well, and the propping system is composed of a four-bar mechanism, an upward hydraulic cylinder and a downward hydraulic cylinder, wherein one side of the four-bar mechanism is connected to the slurry blocking frame by a hinge, and the other side is connected to the frame of the vehicle body by a hinge; the combination of the four-bar mechanism and the hydraulic cylinder realizes the horizontal movement of the slurry blocking assembly. The synchronous movement of the piston and the vehicle roof can effectively support the top plate and realize the lifting / touching of the chassis from the ground; the traveling, supporting, and slurry blocking and blocking are integrated to solve the problems of the current slurry blocking scheme being time-consuming, labor-intensive, inefficient and ineffective.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mine filling, and in particular relates to a self-propelled filling slurry blocking device and a slurry blocking method. Background Art

[0002] In short-wall continuous mining, it is necessary to arrange mining tunnels. After the coal mining machine has mined the tunnel, it will withdraw. The roof will be temporarily supported by hydraulic cylinders, and point columns will be set up. The slurry retaining wall will be laid at the lower end of the tunnel to seal it with wooden boards, filter cloths, metal meshes, or combined templates. The slurry mixed with cement, fly ash, water, sand and gravel will flow from the upper end of the tunnel to the lower end, and fill the entire tunnel under the slurry retaining wall at the lower end of the tunnel. After solidification for a period of time, it will support the roof. However, the current method of manually laying slurry retaining walls is time-consuming, labor-intensive and inefficient.

[0003] Patent CN210858805U introduces a slurry or coal blocking robot, a slurry blocking hydraulic cylinder support, and a hydraulic telescopic beam for slurry blocking, but there are the following problems: when blocking the slurry, the slurry blocking mechanism cannot extend laterally, resulting in a tunnel requiring multiple devices to be arranged side by side for slurry blocking, and low work efficiency; when supporting, the hydraulic support bears both the longitudinal load from the roof and the lateral load from the slurry, and is prone to bending, deformation, or even breakage, and the uppermost hydraulic telescopic beam also bears loads from both the roof and slurry directions, and the cavity is prone to wear and deformation.

[0004] Therefore, in order to treat the slurry blocking and temporary support of the filling tunnel more safely and efficiently, the present invention provides a self-propelled filling slurry blocking equipment and a slurry blocking method, and the equipment has a high degree of automation and good safety. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a self-propelled filling slurry blocking equipment and a slurry blocking method, which can more safely and efficiently perform slurry blocking and temporary support on the tunnel to be filled.

[0006] A self-propelled filling slurry blocking device, the slurry blocking device includes a vehicle body, a lifting system, a slurry blocking assembly and a support system, the lifting system is located inside the vehicle body, the slurry blocking assembly is located on one side of the vehicle body, the support system is located between the slurry blocking assembly and the vehicle body, the slurry blocking assembly is composed of a slurry blocking frame, a metal hanging plate and a metal hanging net, hooks are distributed on the metal hanging plate, the number of the metal hanging plates is multiple, and the multiple metal hanging plates are hung on the unfolded slurry blocking frame through the hooks, the metal hanging net is laid on the metal hanging plate, the metal hanging net is in direct contact with the slurry, the slurry blocking frame is designed to be foldable at the top and bottom, and consists of an upper main frame, an upper left The frame is composed of an upper right frame, a lower main frame, a lower left frame and a lower right frame, the opening system is composed of a four-bar mechanism, an upward hydraulic cylinder and a downward hydraulic cylinder, one side of the four-bar mechanism is connected to the slurry blocking frame by a hinge, and the other side is connected to the frame of the vehicle body by a hinge; there are two upward hydraulic cylinders, which are distributed on both sides of the frame, one end of the upward hydraulic cylinder is connected to the upper main frame by a hinge, and the other end is connected to the frame by a hinge; there are two downward hydraulic cylinders, which are distributed at both ends of the chassis, one end of the downward hydraulic cylinder is connected to the lower main frame by a hinge, and the other end is connected to the chassis by a hinge. The combination of the four-bar mechanism and the hydraulic cylinder realizes the horizontal movement of the slurry blocking combination.

[0007] Furthermore, the vehicle body is composed of a frame, a frame platform and a crawler track assembly, the frame is located on the frame platform, and the frame platform is located on the crawler track assembly.

[0008] Furthermore, the lifting system includes a supporting hydraulic cylinder, a pad, a roof and a chassis. The supporting hydraulic cylinder is composed of a piston and a cylinder body. The pad is welded to the top of the piston. The roof is located above the frame. The upper part of the piston passes through the roof and is rigidly connected to the roof. When the piston moves up and down, it drives the roof to rise and fall together. The cylinder body is located on the chassis and is rigidly connected to the chassis.

[0009] Furthermore, the bottom of the chassis has a rough surface.

[0010] Furthermore, the upper left frame and the upper right frame are distributed on both sides of the upper main frame and are respectively connected to the upper main frame through reinforced hinges; the lower left frame and the lower right frame are distributed on both sides of the lower main frame and are respectively connected to the lower main frame through reinforced hinges; the upper main frame and the lower main frame are connected through reinforced hinges.

[0011] A slurry blocking method using a filling slurry blocking device, the slurry blocking method comprising the following steps:

[0012] Step 1, adjusting the state of the slurry blocking equipment. The slurry blocking equipment is adjusted before entering the underground working area, with the supporting hydraulic cylinder being in a retracted state, the chassis being in a suspended state, and the slurry blocking frame being in a folded and retracted state;

[0013] Step 2: Send the slurry blocking equipment underground for preparation. The crawler assembly drives the whole machine to the lower port of the goaf tunnel. The upward hydraulic cylinder extends to force the upper main frame to unfold. The upper left frame, upper right frame, lower left frame, and lower right frame are manually spread out. Hang the metal hanging plate on the unfolded slurry blocking frame so that the metal hanging plate covers the slurry blocking frame. Then, lay the metal hanging net on the metal hanging plate to complete the preparation work.

[0014] Step 3: Temporary support work. After the preparation work is completed, the supporting hydraulic cylinder starts to stretch. The cylinder body of the supporting hydraulic cylinder moves downward first. After the chassis under the cylinder body touches the ground, the piston starts to move upward, and the roof rises accordingly until the pad on the piston touches the top plate of the roadway. The supporting hydraulic cylinder stops moving, and the slurry blocking equipment completes the temporary support work.

[0015] Step 4: Perform slurry blocking and plugging work. The upward hydraulic cylinder and the downward hydraulic cylinder extend at the same time and provide thrust. Cooperate with the four-bar mechanism to push the slurry blocking assembly horizontally until the slurry blocking assembly blocks the lower port of the tunnel. After the slurry flows down, the slurry directly contacts the metal hanging net. Part of the lateral thrust of the slurry is transmitted to the ground along the metal hanging net, the metal hanging plate, the slurry blocking frame, the upward hydraulic cylinder and the four-bar mechanism, the vehicle body, and finally through the crawler assembly; the other part is transmitted to the ground along the metal hanging net, the metal hanging plate, the slurry blocking frame, the downward hydraulic cylinder, and the chassis. The dispersion of thrust can prevent the equipment from rolling over. At this point, the equipment has completed the slurry blocking and plugging work;

[0016] Step 5. After the slurry blocking equipment completes the blocking, and the slurry solidifies, the supporting hydraulic cylinder contracts, and the piston drives the roof to move downward until the roof contacts the frame and stops; the supporting hydraulic cylinder continues to contract, and the cylinder body drives the chassis to move upward, and the chassis leaves the ground; the equipment leaves its work station and bypasses other working equipment from the side to continue the slurry blocking and blocking work in other tunnels.

[0017] Beneficial effects: The present invention provides a self-propelled slurry blocking equipment and slurry blocking method, which adopts the synchronous movement of the piston and the roof, can effectively support the roof, and realize the ground lift / touchdown of the chassis; the slurry blocking frame adopts the upper and lower foldable manner to reduce the volume, which is convenient for lowering to the underground, and the area of ​​the slurry blocking frame after unfolding can meet the slurry blocking of the lower ports of tunnels of different sizes; when supporting the roof, the supporting hydraulic cylinder only bears longitudinal loads and almost no lateral loads. The self-propelled slurry blocking equipment has a clever design, simple structure, and diverse functions. It integrates travel, support, slurry blocking and blocking, and solves the problems of the current slurry blocking scheme being time-consuming, labor-intensive, inefficient, and ineffective. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an axonometric drawing of the self-propelled slurry retaining equipment assembly;

[0019] Figure 2It is the right view of the self-propelled slurry blocking equipment assembly;

[0020] Figure 3 It is a schematic diagram of the vehicle body structure;

[0021] Figure 4 It is a schematic diagram of the lifting system structure;

[0022] Figure 5 It is a schematic diagram of the slurry retaining assembly structure;

[0023] Figure 6 1. It is a schematic diagram of the expansion of the slurry retaining frame;

[0024] Figure 7 It is a schematic diagram of the metal hanging plate structure;

[0025] Figure 8 It is to expand the system layout diagram;

[0026] Fig. 9 It is a side view of the self-propelled slurry blocking equipment in working condition. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] A self-propelled filling slurry blocking device comprises a vehicle body 1, a lifting system 2, a slurry blocking assembly 3 and a support system 4. The lifting system 2 is located inside the vehicle body 1, the slurry blocking assembly 3 is located on one side of the vehicle body 1, and the support system 4 is located between the slurry blocking assembly 3 and the vehicle body 1.

[0029] The vehicle body 1 is composed of a vehicle frame 11 , a vehicle frame platform 12 , and a track assembly 13 . The vehicle frame 11 is located on the vehicle frame platform 12 , and the vehicle frame platform 12 is located on the track assembly 13 .

[0030] The lifting system 2 is composed of a supporting hydraulic cylinder 21, a pad 22, a roof 23, and a chassis 24. The supporting hydraulic cylinder is composed of a piston 211 and a cylinder body 212. The pad 22 is welded to the top of the piston 211, and plays a role in increasing the supporting area when supporting the roof; the roof 23 is located above the frame 11, and the upper part of the piston 211 passes through the roof 23 and is rigidly connected to the roof 23. When the piston 211 moves up and down, it drives the roof to rise and fall together; the cylinder body 212 is located on the chassis 24 and is rigidly connected to the chassis. The bottom of the chassis is a rough surface, and the purpose is to increase the friction when in contact with the ground.

[0031] The slurry blocking combination 3 is composed of a slurry blocking frame 31, a metal hanging plate 32, and a metal hanging mesh 33. The slurry blocking frame 31 is designed to be foldable at the top and bottom, and is composed of an upper main frame 311, an upper left frame 312, an upper right frame 313, a lower main frame 314, a lower left frame 315, and a lower right frame 316. The upper left frame and the upper right frame are distributed on both sides of the upper main frame, and are connected to the upper main frame through reinforced hinges; the lower left frame and the lower right frame are distributed on both sides of the lower main frame, and are connected to the lower main frame through reinforced hinges respectively; the upper main frame and the lower main frame are connected through reinforced hinges; hooks 321 are distributed on the metal hanging plates, which can be hung on the unfolded slurry blocking frame, and multiple metal hanging plates can cover the slurry blocking frame. The metal hanging plates are made of high-strength, low-density metal materials; the metal hanging mesh is laid on the metal hanging plates, and the metal hanging mesh is in direct contact with the slurry.

[0032] The spreading system 4 is composed of a four-bar mechanism 41, an upward hydraulic cylinder 42, and a downward hydraulic cylinder 43. One side of the four-bar mechanism 41 is connected to the slurry blocking frame 31 by a hinge, and the other side is connected to the frame 11 by a hinge; there are two upward hydraulic cylinders, which are distributed on both sides of the frame. One end of the upward hydraulic cylinder is connected to the upper main frame by a hinge, and the other end is connected to the frame by a hinge; there are two downward hydraulic cylinders, one end of the downward hydraulic cylinder is connected to the lower main frame by a hinge, and the other end is connected to the chassis by a hinge. The combination of the four-bar mechanism and the hydraulic cylinder can realize the horizontal movement of the slurry blocking combination.

[0033] The working process of the self-propelled slurry blocking equipment: before entering the underground working area, the supporting hydraulic cylinder 21 of the equipment is in a retracted state and the chassis 24 is in a suspended state, in order to prevent the equipment from rubbing and colliding with the uneven ground during movement. Since the piston is rigidly connected to the roof 23, the roof 23 bears the gravity of the supporting hydraulic cylinder; the slurry blocking frame 31 is in a folded and retracted state, in order to reduce the volume of the entire machine so that it can be lowered underground.

[0034] After entering the underground, the crawler assembly 13 drives the whole machine to the lower end of the goaf tunnel, and the upward hydraulic cylinder extends to force the upper main frame to unfold. Then the upper left frame 312, the upper right frame 313, the lower left frame 315, and the lower right frame 316 are manually spread out, and the metal hanging plate 32 is hung on the unfolded slurry blocking frame 31, so that the metal hanging plate covers the slurry blocking frame, and then the metal hanging net is laid on the metal hanging plate to complete the preparation work.

[0035] After the preparation work is completed, the supporting hydraulic cylinder begins to extend. Since the chassis is in a suspended state, the cylinder body moves downward first. After the chassis under the cylinder body touches the ground, the piston begins to move upward, and the roof rises accordingly until the pad on the piston touches the tunnel roof. The supporting hydraulic cylinder stops moving, and the equipment completes the temporary support work. The tunnel roof, pad, supporting hydraulic cylinder, chassis, and tunnel floor form a stable system.

[0036] The upward hydraulic cylinder and the downward hydraulic cylinder extend at the same time and provide thrust, and cooperate with the four-bar mechanism to push the slurry blocking assembly horizontally until the slurry blocking assembly blocks the lower port of the tunnel. After the slurry flows down, the slurry is in direct contact with the metal hanging net. Part of the lateral thrust of the slurry is transmitted to the ground along the metal hanging net, metal hanging plate, slurry blocking frame, upward hydraulic cylinder and four-bar mechanism, vehicle body, and finally through the track assembly; the other part is transmitted to the ground along the metal hanging net, metal hanging plate, slurry blocking frame, downward hydraulic cylinder, and chassis. The dispersion of thrust can prevent the equipment from rolling over. At this point, the equipment has completed the slurry blocking and plugging work. Since the length and height of the slurry blocking frame become larger after expansion, the equipment can complete the slurry blocking and plugging tasks of the lower ports of tunnels of different sizes, and has a wide range of applications.

[0037] Multiple self-propelled slurry blocking equipment can work together at the same time. After the slurry solidifies, the supporting hydraulic cylinder will retract, and the piston will drive the roof to move downward until the roof contacts the frame and stops; the supporting hydraulic cylinder will continue to retract, and the cylinder will drive the chassis to move upward, and the chassis will leave the ground; the equipment will leave its station and bypass other working equipment from the side to continue the slurry blocking work in other lanes.

[0038] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A self-propelled filling and slurry blocking device, characterized in that: The slurry blocking equipment includes a vehicle body, a lifting system, a slurry blocking assembly and a support system, the lifting system is located inside the vehicle body, the slurry blocking assembly is located on one side of the vehicle body, the support system is located between the slurry blocking assembly and the vehicle body, the slurry blocking assembly is composed of a slurry blocking frame, a metal hanging plate and a metal hanging net, hooks are distributed on the metal hanging plate, the number of the metal hanging plates is multiple, and the multiple metal hanging plates are hung on the unfolded slurry blocking frame through the hooks, the metal hanging net is laid on the metal hanging plate, the metal hanging net is in direct contact with the slurry, the slurry blocking frame is of upper and lower foldable design, and consists of an upper main frame, an upper left frame, an upper right frame, The lower main frame, the lower left frame and the lower right frame are composed of the opening system, which is composed of a four-bar mechanism, an upward hydraulic cylinder and a downward hydraulic cylinder. One side of the four-bar mechanism is connected to the slurry retaining frame by a hinge, and the other side is connected to the frame of the vehicle body by a hinge; there are two upward hydraulic cylinders, which are distributed on both sides of the frame, one end of the upward hydraulic cylinder is connected to the upper main frame by a hinge, and the other end is connected to the frame by a hinge; there are two downward hydraulic cylinders, which are distributed at both ends of the chassis, one end of the downward hydraulic cylinder is connected to the lower main frame by a hinge, and the other end is connected to the chassis by a hinge. The combination of the four-bar mechanism and the hydraulic cylinder realizes the horizontal movement of the slurry retaining assembly; The vehicle body is composed of a vehicle frame, a vehicle frame platform and a crawler track assembly, the vehicle frame is located on the vehicle frame platform, and the vehicle frame platform is located on the crawler track assembly; The lifting system includes a supporting hydraulic cylinder, a pad, a roof and a chassis. The supporting hydraulic cylinder is composed of a piston and a cylinder body. The pad is welded to the top of the piston. The roof is located above the frame. The upper part of the piston passes through the roof and is rigidly connected to the roof. When the piston moves up and down, it drives the roof to rise and fall together. The cylinder body is located on the chassis and is rigidly connected to the chassis. The upper left frame and the upper right frame are distributed on both sides of the upper main frame and are connected to the upper main frame through reinforced hinges respectively; the lower left frame and the lower right frame are distributed on both sides of the lower main frame and are connected to the lower main frame through reinforced hinges respectively; the upper main frame and the lower main frame are connected through reinforced hinges.

2. The self-propelled filling and slurry blocking equipment according to claim 1 is characterized in that: The bottom of the chassis is a rough surface.

3. A slurry blocking method using a self-propelled filling slurry blocking device as described in any one of claims 1-2, characterized in that: The slurry blocking method comprises the following steps: Step 1, adjusting the state of the slurry blocking equipment. The slurry blocking equipment is adjusted before entering the underground working area, with the supporting hydraulic cylinder being in a retracted state, the chassis being in a suspended state, and the slurry blocking frame being in a folded and retracted state; Step 2: Send the slurry blocking equipment underground for preparation. The crawler assembly drives the whole machine to the lower port of the goaf tunnel. The upward hydraulic cylinder extends to force the upper main frame to unfold. The upper left frame, upper right frame, lower left frame, and lower right frame are manually spread out. Hang the metal hanging plate on the unfolded slurry blocking frame so that the metal hanging plate covers the slurry blocking frame. Then, lay the metal hanging net on the metal hanging plate to complete the preparation work. Step 3: Temporary support work. After the preparation work is completed, the supporting hydraulic cylinder starts to stretch. The cylinder body of the supporting hydraulic cylinder moves downward first. After the chassis under the cylinder body touches the ground, the piston starts to move upward, and the roof rises accordingly until the pad on the piston touches the top plate of the roadway. The supporting hydraulic cylinder stops moving, and the slurry blocking equipment completes the temporary support work. Step 4: Perform slurry blocking and plugging work. The upward hydraulic cylinder and the downward hydraulic cylinder extend at the same time and provide thrust. Cooperate with the four-bar mechanism to push the slurry blocking assembly horizontally until the slurry blocking assembly blocks the lower port of the tunnel. After the slurry flows down, the slurry directly contacts the metal hanging net. Part of the lateral thrust of the slurry is transmitted to the ground along the metal hanging net, the metal hanging plate, the slurry blocking frame, the upward hydraulic cylinder and the four-bar mechanism, the vehicle body, and finally through the crawler assembly; the other part is transmitted to the ground along the metal hanging net, the metal hanging plate, the slurry blocking frame, the downward hydraulic cylinder, and the chassis. The dispersion of thrust can prevent the equipment from rolling over. At this point, the equipment has completed the slurry blocking and plugging work; Step 5. After the slurry blocking equipment completes the blocking, and the slurry solidifies, the supporting hydraulic cylinder contracts, and the piston drives the roof to move downward until the roof contacts the frame and stops; the supporting hydraulic cylinder continues to contract, and the cylinder body drives the chassis to move upward, and the chassis leaves the ground; the equipment leaves its work station and bypasses other working equipment from the side to continue the slurry blocking and blocking work in other tunnels.

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