Guniting device for corner filling of stope face

Abstract

The utility model relates to the technical field of guniting construction, in particular to a guniting device for filling a corner of a stope face, which comprises a stirring box, a bottom frame, a discharging pipe, a first electromagnetic valve, a guniting pipe, a high-pressure pump, an output pipe, a second electromagnetic valve, a moving unit, a supporting unit and a stirring unit, the supporting unit is arranged on the outer side wall of the guniting pipe, the stirring unit is arranged on the inner side wall of the stirring box, raw materials are poured into the stirring box and are stirred and mixed through the stirring unit, then a control end is clicked to start a first electromagnetic valve for discharging, then a high-pressure pump is started, and after air is pressurized, a second electromagnetic valve is opened; and the moving unit is used for moving the bottom frame, the supporting unit assists the guniting pipe in discharging, in this way, the workload of operators is reduced, and the operation cost and the safety risk are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of shotcreting construction, in particular to a shotcreting device for filling the corner of a coal mining face. Background Art

[0002] With the development and progress of green coal mining, especially in the triangular area near the upper side of the return airway and the edge of the goaf on the return air side of the coal mining face. This area has poor ventilation, high temperature and humidity, and is prone to accumulating gas released at the intersection of the goaf and the mining face. Therefore, it is the key point for gas prevention and control in the working face. The coal mine paste filling technology is one of the main development trends of future coal mine filling, and the paste can quickly accumulate in the loose body.

[0003] The existing corners of coal mining faces are generally filled manually to reduce the risk of gas accumulation and ensure the safe production of coal mines.

[0004] The current filling method has a large construction volume, high cost, and it is difficult to achieve an ideal filling effect. It cannot effectively prevent the accumulation of gas, and the manual filling method also increases the safety risk of operators. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a shotcreting device for filling the corner of a coal mining face, aiming to solve the problems that the current filling method has a large construction volume, high cost, it is difficult to achieve an ideal filling effect, it cannot effectively prevent the accumulation of gas, and the manual filling method also increases the safety risk of operators.

[0006] To achieve the above purpose, the utility model provides a shotcreting device for filling the corner of a coal mining face, including a mixing tank, a chassis, a discharge pipe, a first solenoid valve, a shotcreting pipe, a high-pressure pump, an output pipe, a second solenoid valve, a moving unit, a supporting unit and a mixing unit. The mixing tank is fixedly connected to the chassis and is located above the chassis. The discharge pipe is communicated with the mixing tank and is located below the mixing tank. The first solenoid valve is communicated with the discharge pipe and is located in the middle of the discharge pipe. The shotcreting pipe is communicated with the discharge pipe and is located below the discharge pipe. The high-pressure pump is fixedly connected to the chassis and is located above the chassis. Both ends of the output pipe are respectively communicated with the high-pressure pump and the shotcreting pipe. The second solenoid valve is communicated with the output pipe and is located in the middle of the output pipe. The moving unit is arranged below the chassis. The supporting unit is arranged on the outer side wall of the shotcreting pipe. The mixing unit is arranged on the inner side wall of the mixing tank.

[0007] Wherein, the moving unit includes a hollow column, a cylinder, a sliding column and a moving frame. The hollow column is fixedly connected to the bottom frame and is located on the inner side wall of the bottom frame. The sliding column is slidably connected to the hollow column and is located on the inner side wall of the hollow column. The cylinder is fixedly connected to the hollow column and is located on the inner top wall of the hollow column. The output end of the cylinder is fixedly connected to the sliding column and is located above the sliding column. The moving frame is movably connected to the sliding column and is located below the sliding column.

[0008] Wherein, the moving unit further includes a limiting block. The limiting block is fixedly connected to the sliding column and is located on the outer side wall of the sliding column, and the limiting block is slidably matched with the hollow column.

[0009] Wherein, the supporting unit includes a base, a triangular frame and a connecting rod. The base is fixedly connected to the shotcreting pipe and is located on the outer side wall of the shotcreting pipe. The triangular frame is rotatably connected to the base and is located on the inner side wall of the base. The connecting rod is fixedly connected to the triangular frame and is located on the inner side wall of the triangular frame.

[0010] Wherein, the supporting unit further includes an abrasive seat and a connecting rib. The abrasive seat is fixedly connected to the triangular frame and is located below the triangular frame. Both ends of the connecting rib are fixedly connected to the abrasive seat and the triangular frame respectively.

[0011] Wherein, the stirring unit includes a mounting frame, a stirring frame and a stirring motor. The mounting frame is fixedly connected to the stirring tank and is located above the stirring tank. The stirring motor is detachably connected to the mounting frame and is located above the mounting frame. The stirring frame is fixedly connected to the stirring motor and is located at the output end of the stirring motor, and the stirring frame is adapted to the stirring tank.

[0012] For a shotcreting device for gob filling at the corner of a coal mining face of the present utility model, raw materials are poured into the stirring tank, and the stirring unit is used for stirring and mixing. Then, the first solenoid valve is started by clicking the control end for discharging materials. After that, the high-pressure pump is turned on, and after pressurizing the air, the second solenoid valve is opened to drive the mixture in the shotcreting pipe to be sprayed onto the corner of the working face. The moving unit is used to move the bottom frame, and the supporting unit assists the shotcreting pipe in discharging materials. In this way, the workload of operators is reduced, and the operation cost and safety risk are decreased. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art.

[0014] Figure 1It is a schematic structural diagram of a shotcreting device for gob-side filling in the coal winning face of the utility model.

[0015] Figure 2 It is a right view of the shotcreting device for gob-side filling in the coal winning face of the utility model.

[0016] Figure 3 It is of the utility model Figure 2 Cross-sectional view taken along line A-A.

[0017] Figure 4 It is of the utility model Figure 3 Enlarged view of the partial structure at position B.

[0018] 101 - mixing tank, 102 - chassis, 103 - discharge pipe, 104 - first solenoid valve, 105 - shotcreting pipe, 106 - high-pressure pump, 107 - output pipe, 108 - second solenoid valve, 109 - hollow column, 110 - cylinder, 111 - sliding column, 112 - moving frame, 113 - limit block, 114 - base, 115 - tripod, 116 - connecting rod, 117 - abrasive seat, 118 - connecting rib, 119 - mounting bracket, 120 - mixing frame, 121 - mixing motor. Detailed implementation manners

[0019] Please refer to Figures 1 to 4 wherein Figure 1 is a schematic structural diagram of a shotcreting device for gob-side filling in the coal winning face of the utility model, Figure 2 is a right view of a shotcreting device for gob-side filling in the coal winning face of the utility model, Figure 3 is of the utility model Figure 2 Cross-sectional view taken along line A-A, Figure 4 is of the utility model Figure 3 Enlarged view of the partial structure at position B.

[0020] The utility model provides a shotcreting device for gob-side filling in the coal winning face, including a mixing tank 101, a chassis 102, a discharge pipe 103, a first solenoid valve 104, a shotcreting pipe 105, a high-pressure pump 106, an output pipe 107, a second solenoid valve 108, a moving unit, a supporting unit and a mixing unit. The moving unit includes a hollow column 109, a cylinder 110, a sliding column 111, a moving frame 112 and a limit block 113. The supporting unit includes a base 114, a tripod 115, a connecting rod 116, an abrasive seat 117 and a connecting rib 118. The mixing unit includes a mounting bracket 119, a mixing frame 120 and a mixing motor 121.

[0021] The mixing tank 101 is fixedly connected to the chassis 102 and is located above the chassis 102. The discharge pipe 103 is communicated with the mixing tank 101 and is located below the mixing tank 101. The first solenoid valve 104 is communicated with the discharge pipe 103 and is located in the middle of the discharge pipe 103. The spraying pipe 105 is communicated with the discharge pipe 103 and is located below the discharge pipe 103. The high-pressure pump 106 is fixedly connected to the chassis 102 and is located above the chassis 102. Both ends of the output pipe 107 are communicated with the high-pressure pump 106 and the spraying pipe 105 respectively. The second solenoid valve 108 is communicated with the output pipe 107 and is located in the middle of the output pipe 107. The moving unit is arranged below the chassis 102. The supporting unit is arranged on the outer side wall of the spraying pipe 105. The mixing unit is arranged on the inner side wall of the mixing tank 101.

[0022] In this embodiment, raw materials are poured into the mixing tank 101, and are stirred and mixed by the mixing unit. Then, click the control end to start the first solenoid valve 104 for discharging materials. After that, turn on the high-pressure pump 106, pressurize the air, and then turn on the second solenoid valve 108 to drive the mixture in the spraying pipe 105 to be sprayed onto the corner of the working surface. The moving unit is used to move the chassis 102, and the supporting unit assists the spraying pipe 105 in discharging materials. By this way, the workload of operators is reduced, and the operation cost and safety risk are decreased.

[0023] Furthermore, the hollow column 109 is fixedly connected to the chassis 102 and is located on the inner side wall of the chassis 102. The sliding column 111 is slidably connected to the hollow column 109 and is located on the inner side wall of the hollow column 109. The cylinder 110 is fixedly connected to the hollow column 109 and is located on the inner top wall of the hollow column 109. The output end of the cylinder 110 is fixedly connected to the sliding column 111 and is located above the sliding column 111. The moving frame 112 is movably connected to the sliding column 111 and is located below the sliding column 111.

[0024] In this embodiment, start the cylinder 110 to make it hold the sliding column 111 and slide in the hollow column 109 until the moving frame 112 supports the whole chassis 102. At this time, the chassis 102 can be moved, which can effectively improve the practicability of the chassis 102.

[0025] Furthermore, the limiting block 113 is fixedly connected to the sliding column 111 and is located on the outer side wall of the sliding column 111, and the limiting block 113 is slidably matched with the hollow column 109.

[0026] In this embodiment, the limit block 113 is used to limit the moving distance of the sliding column 111, prevent the sliding column 111 from detaching from the hollow column 109, and reduce the workload of the operator.

[0027] Furthermore, the base 114 is fixedly connected to the grouting pipe 105 and is located on the outer sidewall of the grouting pipe 105. The tripod 115 is rotatably connected to the base 114 and is located on the inner sidewall of the base 114. The connecting rod 116 is fixedly connected to the tripod 115 and is located on the inner sidewall of the tripod 115.

[0028] In this embodiment, the tripod 115 and the connecting rod 116 are flipped to be perpendicular to the ground to assist the grouting pipe 105 in working and improve the stability of the operation of the grouting pipe 105.

[0029] Furthermore, the abrasive seat 117 is fixedly connected to the tripod 115 and is located below the tripod 115. Both ends of the connecting rib 118 are fixedly connected to the abrasive seat 117 and the tripod 115 respectively.

[0030] In this embodiment, with the cooperation of the abrasive seat 117 and the connecting rib 118, the contact area between the tripod 115 and the ground is increased, facilitating the operation and use by the operator.

[0031] Furthermore, the mounting frame 119 is fixedly connected to the mixing tank 101 and is located above the mixing tank 101. The mixing motor 121 is detachably connected to the mounting frame 119 and is located above the mounting frame 119. The mixing frame 120 is fixedly connected to the mixing motor 121 and is located at the output end of the mixing motor 121, and the mixing frame 120 is adapted to the mixing tank 101.

[0032] In this embodiment, the mixing motor 121 is started to drive the mixing frame 120 to rotate, and the raw materials in the mixing tank 101 are stirred and mixed to reach the state of slurry.

[0033] The above-disclosed is only a preferred embodiment of the present application, and it cannot be used to limit the scope of rights of the present application. Those of ordinary skill in the art can understand the whole or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A shotcrete device for filling corners of a mining face, characterized in that: It includes a mixing box, a base frame, a discharge pipe, a first solenoid valve, a shotcrete pipe, a high-pressure pump, an output pipe, a second solenoid valve, a moving unit, a supporting unit and a stirring unit. The mixing box is fixedly connected to the base frame and is located above the base frame. The discharge pipe is communicated with the mixing box and is located below the mixing box. The first solenoid valve is communicated with the discharge pipe and is located in the middle of the discharge pipe. The shotcrete pipe is communicated with the discharge pipe and is located below the discharge pipe. The high-pressure pump is fixedly connected to the base frame and is located above the base frame. Both ends of the output pipe are communicated with the high-pressure pump and the shotcrete pipe respectively. The second solenoid valve is communicated with the output pipe and is located in the middle of the output pipe. The moving unit is arranged below the base frame. The supporting unit is arranged on the outer wall of the shotcrete pipe. The stirring unit is arranged on the inner wall of the mixing box.

2. The shotcrete device for filling corners of a mining face as claimed in claim 1, characterized in that: The moving unit includes a hollow column, a cylinder, a sliding column and a moving frame. The hollow column is fixedly connected to the base frame and is located on the inner side wall of the base frame. The sliding column is slidably connected to the hollow column and is located on the inner side wall of the hollow column. The cylinder is fixedly connected to the hollow column and is located on the inner top wall of the hollow column. The output end of the cylinder is fixedly connected to the sliding column and is located above the sliding column. The moving frame is movably connected to the sliding column and is located below the sliding column.

3. The shotcrete device for filling corners of a mining face as claimed in claim 2, characterized in that: The moving unit further comprises a limit block, which is fixedly connected to the sliding column and is located on the outer side wall of the sliding column, and the limit block is slidably matched with the hollow column.

4. The shotcrete device for filling corners of a mining face as claimed in claim 3, characterized in that: The supporting unit includes a base, a tripod and a connecting rod. The base is fixedly connected to the spraying pipe and is located on the outer side wall of the spraying pipe. The tripod is rotatably connected to the base and is located on the inner side wall of the base. The connecting rod is fixedly connected to the tripod and is located on the inner side wall of the tripod.

5. The shotcrete device for filling corners of a mining face as claimed in claim 4, characterized in that: The support unit further comprises a sanding seat and a connecting rib, wherein the sanding seat is fixedly connected to the tripod and is located below the tripod, and two ends of the connecting rib are respectively fixedly connected to the sanding seat and the tripod.

6. The shotcrete device for filling corners of a mining face as claimed in claim 5, characterized in that: The stirring unit includes a mounting frame, a stirring frame and a stirring motor. The mounting frame is fixedly connected to the stirring box and is located above the stirring box. The stirring motor is detachably connected to the mounting frame and is located above the mounting frame. The stirring frame is fixedly connected to the stirring motor and is located at the output end of the stirring motor, and the stirring frame is adapted to the stirring box.

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