A large mining height working face advance dynamic pressure under retreats channel surrounding rock grouting reinforcement device

Abstract

The utility model discloses a kind of large mining height working face advanced dynamic pressure lower retracement pass surrounding rock grouting reinforcement devices, comprising: mobile slide plate one;Concrete retarding component is assembled in the mobile slide plate one top, and the concrete retarding component is used to delay the solidification of concrete;Mobile slide plate two is assembled in the mobile slide plate one side, and the mobile slide plate two is used to provide support and move;Pouring height adjusting component is assembled in the mobile slide plate two top, and the pouring height adjusting component is used to adjust the height of grouting;Above-mentioned device is in the concrete retarding component assembled on mobile slide plate one, motor one positive rotation drives screw stirring vane one on stirring shaft one, and motor two reverse drives screw stirring vane two on stirring shaft two.This two screw stirring vane realizes the back and forth exchange of concrete by exchange pipeline one and exchange pipeline two, to circulate concrete between concrete mixer one and stirring barrel two, to delay the solidification time of concrete.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of large mining height working surface advanced dynamic pressure under the back-off channel, more specifically, the utility model relates to a large mining height working surface advanced dynamic pressure under the back-off channel surrounding rock grouting reinforcement device. BACKGROUND

[0002] The large mining height working surface advanced dynamic pressure under the back-off channel is an auxiliary roadway excavated near the designed stop mining line of the working face during the final mining stage of the coal mine working face to quickly and safely back off the equipment. These roadways may face stability challenges under the influence of advanced dynamic pressure, and corresponding support technology and pressure control measures need to be taken to ensure the stability of the channel and the safe back-off of the equipment in a high pressure environment.

[0003] After searching, the existing patent (publication number: CN213684154U) discloses a hollow grouting anchor rod body external grouting device for reinforcing tunnel surrounding rock, which comprises a base, a motor A is fixedly installed inside the base, a screw rod is installed at the top of the motor A, a screw rod sleeve is threadedly connected to the outer wall of the screw rod, a bearing sleeve is installed on the outer wall of the screw rod sleeve, a grouting tank is fixedly installed on the left side of the bearing sleeve, a communication pipe is fixedly installed on the left side of the grouting tank, a communication valve is fixedly installed inside the communication pipe, a grouting pipe is connected to the left side of the communication pipe, a top plate is fixedly connected to the top of the grouting tank, a motor B is fixedly installed on the top of the top plate, a connecting rod is fixedly connected to the right side of the grouting tank, the utility model can well stir the grouting tank, thereby preventing the occurrence of solidification phenomenon, and the height of the grouting tank can be adjusted, which is beneficial to grouting of surrounding rock of different heights.

[0004] However, the device only relies on a single stirring blade to prevent concrete from solidifying, and this method can only prevent solidification in the short term, while the grouting process is usually long, and the concrete will still solidify after a long time, which is not conducive to the smooth progress of the grouting work. UTILITY MODEL CONTENTS

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a large mining height working surface advanced dynamic pressure under the back-off channel surrounding rock grouting reinforcement device to solve the problem that the concrete solidification time cannot be prolonged for a longer time.

[0006] To solve the above technical problems, the utility model provides technical scheme as follows: A kind of large mining height working face advance dynamic pressure lower withdrawal channel surrounding rock grouting reinforcement device, comprising: mobile sliding plate one;Concrete retarding component is assembled in the top of mobile sliding plate one, and the concrete retarding component is used to delay the solidification of concrete;Mobile sliding plate two is assembled in the side of mobile sliding plate one, and the mobile sliding plate two is used to provide support and move;Pouring height adjusting component is assembled in the top of mobile sliding plate two, and the pouring height adjusting component is used to adjust the height of grouting;Concrete buffer component is assembled in the top of pouring height adjusting component, and the concrete buffer component is used to buffer concrete.

[0007] Preferably, the concrete retarding component includes: a cooling bucket fixedly installed on the top of the mobile sliding plate one, a concrete mixing barrel one fixedly installed inside the cooling bucket, a motor one fixedly installed on the top of the concrete mixing barrel one, a stirring shaft one movably installed inside the concrete mixing barrel one, a stirring vane one fixedly installed on the outer surface of the stirring shaft one, and a drive shaft of the motor one fixedly connected with a drive shaft of the stirring shaft one.

[0008] Preferably, the concrete retarding component further includes: an exchange pipeline one fixedly installed on the side of the concrete mixing barrel one, an exchange pipeline two fixedly installed on the side of the concrete mixing barrel one, a stirring barrel two fixedly installed on one side of the exchange pipeline one and the exchange pipeline two, a motor two fixedly installed on the top of the stirring barrel two, a stirring shaft two movably installed inside the stirring barrel two, a drive shaft of the motor two fixedly connected with the top of the stirring shaft two, and a stirring vane two fixedly installed on the outer surface of the stirring shaft two.

[0009] Preferably, the pouring height adjusting component includes: a hydraulic lifting rod fixedly installed on the top of the mobile sliding plate two, a hydraulic lifting rod fixedly installed on the top of the hydraulic lifting rod, an installation groove formed in the inside of the hydraulic lifting rod, and a limiting sleeve ring fixedly installed on the top of the hydraulic lifting rod.

[0010] Preferably, the pouring height adjusting component further includes: a motor three fixedly installed in the inside of the installation groove, a drive shaft of the motor three fixedly connected with the bottom of a threaded rod, and the threaded rod threadedly connected with a lifting platform.

[0011] Preferably, the concrete buffer component includes: an input pipe fixedly installed on the side of the stirring barrel two, a connecting pipe fixedly installed on the side of the input pipe, a control valve fixedly installed on the connecting pipe, and a pump fixedly installed on one end of the connecting pipe.

[0012] Preferably, the concrete storage assembly further comprises: a storage box fixedly installed on the top of the lifting platform, a stirring shaft three movably installed in the storage box, a motor four fixedly installed on one side of the storage box, a driving end of the motor four fixedly connected with the stirring shaft three, a stirring roller fixedly installed on the outer surface of the stirring shaft three, a liquid leakage opening formed in the stirring roller, and an output valve pipe fixedly installed on one side of the storage box.

[0013] Preferably, the liquid leakage opening is formed in multiple groups, and the multiple groups of liquid leakage openings are equidistantly formed on the outer surface of the stirring roller.

[0014] Compared with the prior art, the concrete storage assembly has the advantages that:

[0015] In the concrete retarding assembly assembled on the moving slide plate one, the motor one drives the threaded stirring fan blade one on the stirring shaft one in forward rotation, and the motor two drives the threaded stirring fan blade two on the stirring shaft two in reverse rotation. The two threaded stirring fan blades realize the back-and-forth exchange of concrete through the exchange pipeline one and the exchange pipeline two, so that the concrete is circulated between the concrete stirring barrel one and the stirring barrel two, thereby prolonging the solidification time of the concrete. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a whole structure schematic view of the utility model;

[0017] Fig. 2 It is a concrete retarding assembly structure schematic view of the utility model;

[0018] Fig. 3 It is a pouring height adjusting assembly structure schematic view of the utility model;

[0019] Fig. 4 It is a concrete storage assembly structure schematic view of the utility model.

[0020] [REFERENCE SIGNS]

[0021] 1, mobile skateboard one; 2, concrete retarder assembly; 3, mobile skateboard two; 4, pouring height adjusting assembly; 5, concrete buffer assembly; 201, cooling bucket; 202, concrete mixing bucket one; 203, motor one; 204, stirring shaft one; 205, stirring fan one; 206, exchange pipeline one; 207, exchange pipeline two; 208, mixing bucket two; 209, motor two; 210, stirring shaft two; 211, stirring fan two; 401, hydraulic lifting rod; 402, lifting platform; 403, mounting groove; 404, limiting sleeve ring; 405, motor three; 406, threaded rod; 501, input pipe; 502, connecting pipe; 503, control valve; 504, pump; 505, buffer box; 506, stirring shaft three; 507, motor four; 508, stirring drum; 509, liquid leakage; 510, output valve pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor are involved in the protection scope of the utility model.

[0023] Embodiment one

[0024] The preferred embodiment of the grouting reinforcement device for surrounding rock of advanced dynamic pressure under retreat channel of large mining height working face provided by the utility model is as shown in the figure: Figs. 1 to 4 The preferred embodiment of the grouting reinforcement device for surrounding rock of advanced dynamic pressure under retreat channel of large mining height working face provided by the utility model is as shown in the figure:

[0025] In the embodiment, the concrete retarder assembly 2 comprises: a cooling bucket 201 fixedly installed on the top of the mobile skateboard one 1, a concrete mixing bucket one 202 fixedly installed in the inside of the cooling bucket 201, a motor one 203 fixedly installed on the top of the concrete mixing bucket one 202, a stirring shaft one 204 movably installed in the inside of the concrete mixing bucket one 202, a stirring fan one 205 fixedly installed on the outer surface of the stirring shaft one 204, and a driving shaft of the motor one 203 fixedly connected with a driving shaft of the stirring shaft one 204.

[0026] The concrete retarding assembly 2 in the embodiment further comprises: an exchange pipeline 206 fixedly installed on one side of the concrete mixing barrel 202, an exchange pipeline 207 fixedly installed on one side of the concrete mixing barrel 202, a mixing barrel 208 fixedly installed on one side of the exchange pipeline 206 and the exchange pipeline 207, a motor 209 fixedly installed on the top of the mixing barrel 208, a mixing shaft 210 movably installed in the mixing barrel 208, and a mixing blade 211 fixedly installed on the outer surface of the mixing shaft 210.

[0027] The device is used for driving the threaded mixing blade 205 on the mixing shaft 204 of the motor 203 in the positive direction, and driving the threaded mixing blade 211 on the mixing shaft 210 of the motor 209 in the reverse direction.

[0028] Embodiment two

[0029] Based on the embodiment one, the preferable embodiment of the grouting reinforcement device for surrounding rock of a large-mining-height working face under advanced dynamic pressure and retreat passage of the utility model is provided as shown in the figure. Figs. 1 to 4 The pouring height adjusting assembly 4 comprises: a hydraulic lifting rod 401 fixedly installed on the top of the moving slide plate 3, a hydraulic lifting rod 401 fixedly installed on the top of the hydraulic lifting rod 401, an installation groove 403 formed in the hydraulic lifting rod 401, and a limiting sleeve ring 404 fixedly installed on the top of the hydraulic lifting rod 401.

[0030] The pouring height adjusting assembly 4 in the embodiment further comprises: a motor 405 fixedly installed in the installation groove 403, a driving shaft of the motor 405 fixedly connected with the bottom of a threaded rod 406, and the threaded rod 406 threadedly connected with the lifting platform 402.

[0031] The concrete retarding assembly 5 in the embodiment comprises: an input pipe 501 fixedly installed on one side of the mixing barrel 208, a connecting pipe 502 fixedly installed on one side of the input pipe 501, a control valve 503 fixedly installed on the connecting pipe 502, and a pump 504 fixedly installed on one end of the connecting pipe 502.

[0032] In this embodiment, the concrete buffer assembly 5 further comprises a buffer box 505 fixedly installed on the top of the lifting platform 402, an agitating shaft three 506 movably installed inside the buffer box 505, a motor four 507 fixedly installed on one side of the buffer box 505, a driving end of the motor four 507 fixedly connected with the agitating shaft three 506, an agitating drum 508 fixedly installed on the outer surface of the agitating shaft three 506, a liquid leakage opening 509 formed on the agitating drum 508, and an output valve pipe 510 fixedly installed on one side of the buffer box 505.

[0033] In this embodiment, the liquid leakage openings 509 are formed in multiple groups and equidistantly formed on the outer surface of the agitating drum 508.

[0034] The above device is composed of the hydraulic lifting rod 401 through the pouring height adjusting assembly 4, is provided with the limiting sleeve ring 404 on the top, is internally provided with the motor three 405 and the threaded rod 406, the height adjustment of the lifting platform 402 is realized through the driving threaded rod 406 of the motor three 405. The concrete buffer assembly 5 comprises the input pipe 501, the connecting pipe 502, the control valve 503 and the pump 504, and the buffer box 505 fixed on the lifting platform 402, is internally provided with the agitating shaft three 506 and the agitating drum 508, is provided with multiple groups of liquid leakage openings 509 on the agitating drum 508, the agitating and uniform distribution of the concrete are realized through the driving agitating shaft three 506 of the motor four 507, and finally the output of the concrete is controlled through the output valve pipe 510. Such a design makes the device capable of flexibly adjusting the grouting height and effectively managing the flow of the concrete.

[0035] Finally, it should be pointed out that: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0036] Secondly: the utility model discloses the embodiment of the drawings only relates to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0037] Finally: the above-mentioned only for the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A large mining height working face advance dynamic pressure under retreat channel surrounding rock grouting reinforcement device, characterized in that, include: Mobile skateboard 1 (1); A concrete retarding assembly (2) is mounted on top of the movable sliding plate (1). The concrete retarding assembly (2) is used to delay the setting of concrete. The concrete retarding assembly (2) includes: A cooling water tank (201) is fixedly installed on the top of the mobile sliding plate (1). A concrete mixing tank (202) is fixedly installed inside the cooling water tank (201). A motor (203) is fixedly installed on the top of the concrete mixing tank (202). A mixing shaft (204) is movably installed inside the concrete mixing tank (202). A mixing fan blade (205) is fixedly installed on the outer surface of the mixing shaft (204). The drive shaft of the motor (203) is fixedly connected to the drive shaft of the mixing shaft (204). A second movable slide plate (3) is mounted on one side of the first movable slide plate (1), the second movable slide plate (3) being used to provide support and movement; The grouting height adjustment component (4) is mounted on the top of the movable slide plate 2 (3), and the grouting height adjustment component (4) is used to adjust the grouting height; A concrete buffer assembly (5) is mounted on top of the pouring height adjustment assembly (4), the concrete buffer assembly (5) being used to buffer concrete.

2. The grouting and reinforcement device for the surrounding rock of the retreat passage under advanced dynamic pressure in a high-extraction working face according to claim 1, characterized in that, The concrete retarder component (2) also includes: An exchange pipe 1 (206) is fixedly installed on one side of the concrete mixing tank 1 (202). An exchange pipe 2 (207) is fixedly installed on one side of the concrete mixing tank 1 (202). A mixing tank 2 (208) is fixedly installed on one side of the exchange pipe 1 (206) and the exchange pipe 2 (207). A motor 2 (209) is fixedly installed on the top of the mixing tank 2 (208). A mixing shaft 2 (210) is movably installed inside the mixing tank 2 (208). The drive shaft of the motor 2 (209) is fixedly connected to the top of the mixing shaft 2 (210). A mixing fan blade 2 (211) is fixedly installed on the outer surface of the mixing shaft 2 (210).

3. The grouting and reinforcement device for the surrounding rock of the retreat passage under advanced dynamic pressure in a high-extraction working face according to claim 2, characterized in that, The irrigation height adjustment component (4) includes: A hydraulic lifting rod (401) is fixedly installed on the top of the mobile sliding plate (3). The top of the hydraulic lifting rod (401) is fixedly installed with a hydraulic lifting rod (401). An installation groove (403) is opened inside the hydraulic lifting rod (401). A limit collar (404) is fixedly installed on the top of the hydraulic lifting rod (401).

4. The grouting and reinforcement device for the surrounding rock of the retreat passage under advanced dynamic pressure in a high-extraction working face according to claim 3, characterized in that, The watering height adjustment component (4) also includes: The motor three (405) is fixedly installed inside the mounting slot (403). The drive shaft of the motor three (405) is fixedly connected to the bottom of the threaded rod (406). The threaded rod (406) is threadedly connected to the lifting platform (402).

5. The grouting and reinforcement device for the surrounding rock of the retreat passage under advanced dynamic pressure in a high-extraction working face according to claim 4, characterized in that, The concrete buffer component (5) includes: An input pipe (501) is fixedly installed on one side of the mixing tank (208). A connecting pipe (502) is fixedly installed on one side of the input pipe (501). A control valve (503) is fixedly installed on the connecting pipe (502). A pump (504) is fixedly installed at one end of the connecting pipe (502).

6. The grouting and reinforcement device for the surrounding rock of the retreat passage under advanced dynamic pressure in a high-extraction working face according to claim 5, characterized in that, The concrete buffer assembly (5) also includes: A buffer tank (505) is fixedly installed on the top of the lifting platform (402). A stirring shaft three (506) is movably installed inside the buffer tank (505). A motor four (507) is fixedly installed on one side of the buffer tank (505). The drive end of the motor four (507) is fixedly connected to the stirring shaft three (506). A stirring drum (508) is fixedly installed on the outer surface of the stirring shaft three (506). A drain port (509) is opened on the stirring drum (508). An output valve pipe (510) is fixedly installed on one side of the buffer tank (505).

7. The grouting and reinforcement device for the surrounding rock of the retreat passage under advanced dynamic pressure in a high-extraction working face according to claim 6, characterized in that, The drain outlet (509) is provided in multiple sets, and the multiple sets of drain outlets (509) are equally spaced on the outer surface of the stirring drum (508).

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