CN111236981A - Underground coal mine movable integrated automatic grouting system and using method - Google Patents
Underground coal mine movable integrated automatic grouting system and using method Download PDFInfo
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- CN111236981A CN111236981A CN202010238709.0A CN202010238709A CN111236981A CN 111236981 A CN111236981 A CN 111236981A CN 202010238709 A CN202010238709 A CN 202010238709A CN 111236981 A CN111236981 A CN 111236981A
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000003245 coal Substances 0.000 title claims abstract description 37
- 239000002002 slurry Substances 0.000 claims abstract description 212
- 238000004537 pulping Methods 0.000 claims abstract description 172
- 238000003860 storage Methods 0.000 claims abstract description 92
- 239000000843 powder Substances 0.000 claims abstract description 71
- 239000000428 dust Substances 0.000 claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 239000011440 grout Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 68
- 239000007788 liquid Substances 0.000 claims description 31
- 230000003068 static effect Effects 0.000 claims description 23
- 230000008569 process Effects 0.000 claims description 22
- 238000003756 stirring Methods 0.000 claims description 22
- 238000007599 discharging Methods 0.000 claims description 21
- 238000005303 weighing Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 15
- 238000011049 filling Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 238000009775 high-speed stirring Methods 0.000 claims description 2
- 238000007569 slipcasting Methods 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000372132 Hydrometridae Species 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004801 process automation Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/08—Rock dusting of mines; Depositing other protective substances
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Abstract
The invention provides a movable integrated automatic grouting system in a coal mine and a using method thereof, wherein the automatic grouting system comprises a feeding device, and the feeding device is used for conveying powder to the automatic grouting system; the pulping device is used for preparing powder conveyed by the feeding device into slurry; the pulp storage device is used for storing the pulp made by the pulp making device; the grouting device is used for conveying the grout in the grout storage device; the automatic grouting device comprises a moving mechanism, a control device and a control device, wherein the moving mechanism is arranged at the bottom of the automatic grouting system and can move the grouting system integrally, the control device is used for controlling the starting and stopping of the automatic grouting system, dust is removed when powder enters a grouting barrel, the operation environment is improved, and the position to be grouted only needs to be moved integrally to a grouting point, so that the labor intensity of workers is reduced, the device is prevented from being dismounted repeatedly, the service life of the grouting system is prolonged, and the production cost is indirectly saved.
Description
Technical Field
The invention belongs to the technical field of coal mine production equipment, and particularly relates to a movable integrated automatic grouting system for a coal mine underground and a using method.
Background
Due to the engineering requirements of underground grouting reinforcement, water plugging, gob-side entry retaining, fire prevention and extinguishing, empty lane filling and the like of a coal mine, a pulping grouting or filling station is often required to be built so as to prepare powder materials such as cement, fly ash, high-water or ultrahigh-water materials into slurry, and then pumping is carried out to finish grouting or filling engineering. The existing grouting or filling station mainly has the following problems:
(1) the automation degree is low, the labor intensity of workers is high, and the work efficiency is low. The powder is mainly packed into a well in a standard bag, then the pulping work is finished by adopting a manual feeding mode, the labor intensity of workers is very high, and the pulping work efficiency is limited by the feeding speed and is difficult to improve; although a part of mines are constructed underground by digging a large-section chamber and building a temporary storage silo, the semi-automatic pulping can only be realized by manually feeding and loading materials.
(2) The pulping system mainly adopts a manual feeding mode, no effective unloading equipment is arranged underground, powder is mainly transported in bags and manually stacked, and the powder is transported to a use place in a shouldering mode when in use, so that the labor intensity is very high.
(3) The grouting station has poor maneuvering flexibility. The underground grouting point often needs to be replaced, a grouting station must have maneuvering flexibility and is convenient to move, most of coal mine enterprises currently use barrel-type stirring, materials are mainly stacked, an underground chamber needs to be dug for storage, and maneuvering flexibility is lacked.
Therefore, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The invention aims to provide a movable integrated automatic grouting system for a coal mine underground and a using method thereof, which are used for solving the problems in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention provides a coal mine underground movable integrated automatic grouting system, which comprises:
the feeding device is used for conveying powder to the automatic grouting system;
the pulping device is connected with the feeding device and is used for preparing powder conveyed by the feeding device into slurry;
the pulp storage device is connected with the pulping device and is used for storing the pulp made by the pulping device;
the grouting device is connected with the slurry storage device and used for conveying the slurry in the slurry storage device, and the grouting device is used for stirring the slurry at a low speed to prevent the slurry from separating and precipitating;
the moving mechanisms are arranged at the bottoms of the feeding device, the pulping device, the pulp storage device and the grouting device and are used for displacing the feeding device, the pulping device, the pulp storage device and the grouting device;
and the control device is electrically connected with the feeding device, the pulping device, the grouting device and the slurry storage device and is used for controlling the starting and stopping of the feeding device, the pulping device, the slurry storage device and the grouting device.
According to the underground coal mine movable integrated automatic grouting system, preferably, the feeding device comprises:
the air compressor is positioned in the feeding device and used for sucking the powder and conveying the powder to the pulping device;
a material conveying pipe is arranged between the feeding device and the pulping device, one end of the material conveying pipe is connected with the air compressor, and the other end of the material conveying pipe is connected with the top of the pulping device and is used for conveying powder into the pulping device;
preferably, the feeding device is a powder tanker.
According to the underground coal mine movable integrated automatic grouting system, preferably, the slurry making device comprises:
the pulping barrel is of a sealing structure, is positioned on one side of the feeding device and is used for making pulp;
the slurry pump is positioned between the pulping barrel and the slurry storage device, an inlet of the slurry pump is connected with the bottom of the pulping barrel through a slurry suction pipe, and an outlet of the slurry pump is connected with one end of a three-way reversing valve through a third slurry discharge pipe and used for circulating slurry in the pulping barrel;
the three-way reversing valve is positioned above the slurry pump, one end of the three-way reversing valve is connected with the top of the slurry making barrel through a second slurry discharging pipe, the other end of the three-way reversing valve is connected with the top of the slurry storage device through a third slurry discharging pipe, the other end of the three-way reversing valve is connected with an outlet of the slurry pump through a first slurry discharging pipe, and the three-way reversing valve is electrically connected with the control device and used for controlling the flowing direction of slurry;
and the weighing sensor is positioned below the pulping barrel, is electrically connected with the control device and is used for weighing the weight of the pulping barrel.
According to the underground coal mine movable integrated automatic grouting system, preferably, the slurry making device further comprises:
the dust remover is positioned above the pulping barrel, is electrically connected with the control device and is used for removing dust from powder;
preferably, the dust remover is a pulse type dust remover.
According to the underground coal mine movable integrated automatic grouting system, preferably, the slurry making device further comprises:
the water outlet of the static pressure water pipe is arranged above the pulping barrel and is used for injecting water into the pulping barrel;
the electromagnetic flow meter is arranged on a pipeline of the static pressure water pipe and is used for metering the water yield of the static pressure water pipe;
the ball valve is arranged on a pipeline of the static pressure water pipe and is positioned at the downstream of the electromagnetic flowmeter, and the ball valve is electrically connected with the control device and is used for controlling the on-off of the static pressure water pipe.
According to the underground coal mine movable integrated automatic grouting system, preferably, the slurry storage device comprises:
the slurry storage barrel is positioned on one side of the pulping device and used for storing the slurry made by the pulping device, and the slurry storage barrel is used for stirring the slurry at a low speed to prevent the slurry from being separated and precipitated;
the liquid level meter is located above the pulp storage barrel, and the liquid level meter is electrically connected with the control device and used for monitoring the pulp liquid level in the pulp storage barrel.
According to the underground coal mine movable integrated automatic grouting system, preferably, the grouting device comprises:
the grouting pump is positioned on one side of the slurry storage device and used for pumping slurry;
one end of the grouting pump slurry suction pipe is connected with the outlet at the bottom of the slurry storage device, and the other end of the grouting pump slurry suction pipe is connected with the inlet of the grouting pump and used for sucking slurry in the slurry storage device;
and the grouting pump slurry conveying pipe is connected with the outlet of the grouting pump and is used for conveying slurry.
The invention also provides a use method of the underground movable integrated automatic grouting system for the coal mine, and the use method of the automatic grouting system comprises the following steps:
step S1, the feeding device conveys the powder to a pulping operation point;
step S2, starting the pulping device through a control device to prepare powder into slurry;
and step S3, delivering the slurry through a grouting device to realize grouting or filling.
According to the above method for using the underground coal mine movable integrated automatic grouting system, preferably, the step S2 specifically includes:
step S201, starting an automatic grouting system, electrifying a control device, and sequentially starting a slurry pump, a stirrer and an air compressor;
step S202, a ball valve is opened, a static pressure water pipe supplies water into a pulping barrel, the water is measured by an electromagnetic flowmeter, the ball valve is closed after the water reaches the water amount required by pulping, and the static pressure water pipe stops supplying water into the pulping barrel;
step S203, starting an air compressor, enabling powder to enter a pulping barrel after dust removal through a dust remover under the action of the air compressor, weighing the weight of the powder through a weighing sensor below the pulping barrel, stopping feeding after the powder is added to a preset amount, enabling a slurry pump to be in a running state all the time in the process, enabling the powder and water to be discharged into the pulping barrel through a slurry suction pipe through high-speed stirring of the slurry pump through a first slurry discharge pipe and a second slurry discharge pipe, enabling slurry in the pulping barrel to be in a vortex state, and enabling the process to be an internal circulation process;
step S204, setting stirring time, carrying out internal circulation on the pulping device, reversing by using a three-way reversing valve after pulping is finished, and conveying pulp into a pulp storage barrel through a first pulp discharge pipe and a third pulp discharge pipe;
step S205, after the slurry in the pulping barrel is discharged, repeating the step S202, the step S203 and the step S204, and continuing the next circulation pulping process;
step S206, after a liquid level meter on the pulp storage barrel monitors that the liquid level of the pulp in the pulp storage barrel reaches the upper limit of a preset warning value, the three-way reversing valve reverses, the pulp flows out from the bottom of the pulping barrel through a pulp suction pipe and is injected into the pulping barrel again through a first pulp discharge pipe and a second pulp discharge pipe, and the internal circulation of the pulp in the pulping barrel is realized;
and step S207, after the liquid level in the pulp storage barrel is lower than the lower limit of the preset warning value, reversing by the three-way reversing valve, discharging pulp into the pulp storage barrel, and continuing the pulping cycle.
Compared with the closest prior art, the technical scheme provided by the invention has the following excellent effects:
the invention provides a movable integrated automatic grouting system in a coal mine underground and a using method thereof. According to the requirement of slurry proportioning, powder and water are automatically added into the pulping barrel, the pulping barrel can realize internal circulation, resource waste caused by slurry solidification is avoided, the whole pulping process is operated by the control device, full automation of the pulping process is realized, the pulping work efficiency is improved, an operator does not need to enter a coal mine roadway to operate the pulping system, and the production safety is improved.
Drawings
Fig. 1 is a schematic structural diagram of an automated grouting system in an embodiment of the invention.
In the figure: 1. a feeding device; 2. an air compressor; 3. a delivery pipe; 4. a pulping barrel; 6. a slurry pump; 7. a pulp suction pipe; 8. a weighing sensor; 9. a three-way reversing valve; 10. a first slurry discharge pipe; 11. a second slurry discharge pipe; 12. a third slurry discharge pipe; 13. a static pressure water pipe; 14. an electromagnetic flow meter; 15. a ball valve; 16. a dust remover; 17. a pulp storage barrel; 18. a liquid level meter; 19. a stirrer; 20. grouting pump; 21. a slurry suction pipe of a grouting pump; 22. a slurry conveying pipe of a grouting pump; 23. and a moving mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are for convenience of description of the present invention only and do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "connected" and "connected" used herein should be interpreted broadly, and may include, for example, a fixed connection or a detachable connection; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.
The invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments, it being noted that the embodiments and features of the embodiments of the invention can be combined with each other without conflict.
As shown in fig. 1, the invention provides a movable integrated automatic pulping system in a coal mine, the automatic pulping system comprises a feeding device 1, the feeding device 1 is used for conveying powder to a pulping operation point, the feeding device 1 in the embodiment of the invention is preferably a small powder tanker, the small powder tanker can freely enter and exit the coal mine, the weight of the powder conveyed in a single time is more than that of the powder in a bag, the conveying capacity in the single time is increased, the powder is not required to be conveyed manually, the labor intensity of workers is reduced, and the working efficiency is improved; the pulping device is connected with the feeding device 1 and is used for preparing powder conveyed by the feeding device 1 into slurry; the pulp storage device is connected with the pulping device and is used for storing the pulp made by the pulping device; the grouting device is connected with the slurry storage device and is used for conveying slurry in the slurry storage device; the moving mechanism 23, the bottom of the feeding device 1, the pulping device, the pulp storage device and the grouting device are all provided with the moving mechanism 23, and are used for moving the feeding device 1, the pulping device, the pulp storage device and the grouting device integrally, and the control device is electrically connected with the feeding device 1, the pulping device and the pulp storage device and is used for controlling the starting and stopping of the feeding device 1, the pulping device and the pulp storage device. The control device in the embodiment of the invention is preferably a PLC control cabinet, the type of the PLC control cabinet is not further limited, the PLC control cabinet can be used for controlling equipment in the system to run, the PLC control cabinet can complete equipment automation and process automation control, the work is stable, the functions are complete, and workers can realize the automation of the whole pulping system by operating the control device.
Further, in order to enable the powder to be easily conveyed into the pulping device, an air compressor 2 is installed in the feeding device in the embodiment of the invention, the air compressor 2 is used for absorbing the powder and conveying the powder to the pulping device, besides using an air compressor, compressed air in a coal mine can be used, the production cost can be greatly reduced by using the compressed air, a conveying pipe 3 is arranged between the air compressor 2 and the pulping device, one end of the conveying pipe 3 is connected with the air compressor 2, and the other end of the conveying pipe is connected with the top of the pulping device and is used for conveying the powder into the pulping device; the explosion-proof pipe is preferably selected as the material conveying pipe 3, and the material conveying pipe 3 cannot be damaged or leaked due to large pressure generated by the air compressor when the explosion-proof pipe is used, so that the material conveying effect is influenced.
Further, the pulping device comprises a pulping barrel 4, the pulping barrel 4 is of a sealing structure and is positioned on the right side of the feeding device 1 and used for manufacturing a container of the pulp, and the pulping barrel 4 with the sealing structure is used for preventing dust from drifting to the air to pollute the environment in the stirring process of the powder; the bottom of the pulping barrel 4 in the embodiment of the invention is in a wedge shape with a large upper opening and a small lower opening, and is communicated with the pulp suction pipe 7, a bracket is arranged on the outer wall of the pulping barrel 4, one end of the bracket is fixedly connected with the outer wall of the pulping barrel 4, and the other end of the bracket is placed on the weighing sensor 8 and is used for supporting the pulping barrel 4; the slurry pump is characterized by comprising a weighing sensor 8, wherein the weighing sensor 8 is positioned below a slurry making barrel and is electrically connected with a control device and used for weighing the weight change of the slurry making barrel 4, a slurry pump 6 is positioned on the right side of the slurry making barrel 4, the inlet of the slurry pump 6 is connected with the outlet at the bottom of the slurry making barrel 4 through a slurry suction pipe 7, a high-speed impeller is installed in the slurry pump and is used for fully stirring powder and water, the outlet of the slurry pump 6 is connected with one end of a three-way reversing valve 9 through a third slurry discharge pipe 12, the slurry pump 6 is electrically connected with the control device, and the slurry pump 6 controls the slurry discharge of slurry in the slurry making barrel 4; one end of the three-way reversing valve 9 is in through connection with the side wall of the top of the pulping barrel 4 through a second pulp discharging pipe 11, the other end of the three-way reversing valve 9 is in through connection with the top of the pulp storage device through a third pulp discharging pipe 12, the other end of the three-way reversing valve is connected with the outlet of the slurry pump 6 through a first pulp discharging pipe 10, and the three-way reversing valve 9 is electrically connected with the control device and used for controlling the flowing direction of the slurry; the dust remover 16 is electrically connected with the control device, the dust remover 16 is installed at the top of the pulping barrel 4 and used for removing dust of powder entering the pulping barrel 4, the dust remover 4 in the embodiment of the invention is preferably a pulse type dust remover, the pulse type dust remover removes dust attached to a filter medium by a method of blowing compressed air, the dust removing capacity is strong, except the pulse type dust remover, other equipment capable of removing dust can be used, such as a cloth bag dust remover and the like, the dust remover 16 is installed to avoid dust pollution caused by powder feeding, and the underground coal mine operation environment is effectively protected.
Further, a static pressure water pipe 13 is further installed above the pulping barrel 4, one end of the static pressure water pipe 13 is connected with a water source, the other end of the static pressure water pipe extends to the top of the pulping barrel 4, and water is injected into the pulping barrel 4; the electromagnetic flow meter 14 is arranged on the static pressure water pipe 13, and can detect the amount of water injected into the pulping barrel 4 by the static pressure water pipe 13; the ball valve 15, the ball valve 15 is installed in the low reaches of the electromagnetic flowmeter 14, and the ball valve 15 is connected with the controlling means between the electricity for the supply of control water stops, according to the ratio requirement, water measures through the electromagnetic flowmeter 14, reaches the ratio requirement after, the ball valve 15 closes, stops to supply water in the slurrying bucket 4.
Specifically, a static pressure water pipe 13 supplies water into a pulping barrel 4, an electromagnetic flowmeter 14 meters the water yield of the water, after the water yield reaches the water amount required by pulping, a ball valve 15 is closed, the water supply into the pulping barrel 4 is stopped, when the water is added to a preset value, an air compressor 2 is started to convey powder into the pulping barrel 4, the powder is dedusted by a deduster 16 and enters into the pulping barrel 4, a weighing sensor 8 arranged at the bottom of the pulping barrel 4 is used for weighing the weight of the pulping barrel 4 in real time according to the requirements of pulping proportion, after the preset value is reached, the air compressor 2 stops working and stops conveying the powder into the pulping barrel 4, a slurry pump 6 is always in a starting state in the whole water adding process, the slurry pump 6 sucks out the water in the pulping barrel 4 through a slurry suction pipe 7 and flows into the pulping barrel 4 through a third slurry discharge pipe 12 and a first slurry discharge pipe 10 to form internal circulation and form a vortex slurry pump in the pulping barrel, after the powder enters the pulping barrel 4, the powder is fully stirred by the slurry pump 6 under the action of water internal circulation, the powder can be further stirred under the action of vortex in the pulping barrel, the internal circulation time is set, the internal circulation time is specifically set according to the quantity of the slurry required to be proportioned on site, the slurry meeting the proportioning requirement is prepared, the pulping process of the powder and water is completed in a short time under the action of the internal circulation of the slurry pump 6 and the pulping barrel 4, and the stirring efficiency is greatly improved; after pulping is finished, the three-way reversing valve 9 is reversed to communicate the first pulp discharging pipe 10 with the third pulp discharging pipe 12, the slurry pump 6 conveys the slurry in the pulping barrel 4 into the pulp storage barrel 17 from the bottom through the pulp suction pipe 7, when the slurry in the pulp storage barrel 17 reaches the upper limit of the preset warning value, the three-way reversing valve 9 is reversed again to communicate the first pulp discharging pipe 10 with the second pulp discharging pipe 11, at the moment, the slurry pump 6 extracts the slurry in the pulping barrel 4 from the bottom and then injects the slurry into the pulping barrel 4 again through the second pulp discharging pipe 11, and thus, the slurry pump 6, the first pulp discharging pipe 10 and the second pulp discharging pipe 11 are communicated with each other, so that the slurry in the pulping barrel 4 forms an internal circulation state, and the solidification of the slurry is avoided.
Further, the slurry storage device comprises a slurry storage barrel 17, the slurry storage barrel 17 is positioned on the right side of the slurry pump 6 and used for storing slurry prepared by the slurry preparation device, the capacity of the slurry storage barrel 17 is larger than that of the slurry preparation barrel 4, the slurry storage barrel 17 in the embodiment of the invention is a low-speed stirring barrel, the slurry storage barrel 17 is used for stirring the slurry at a low speed to prevent the slurry from being separated and precipitated, and the slurry prepared by the slurry preparation device can be discharged into the slurry storage barrel 17 at any time to ensure the production continuity; the liquid level meter 18, the liquid level meter 18 in the embodiment of the invention is preferably an ultrasonic liquid level meter, the ultrasonic liquid level meter is positioned above the slurry storage barrel 17 and is electrically connected with the control device, the slurry liquid level in the slurry storage barrel 17 is monitored, other liquid level meters 18 for monitoring the liquid level can be used besides the ultrasonic liquid level meter, such as a radar liquid level meter, and when the ultrasonic liquid level meter monitors that the slurry liquid level in the slurry storage barrel 17 reaches the upper limit of a preset warning value, the three-way reversing valve 9 reverses, and the slurry is stopped being conveyed into the slurry storage barrel 17; the slurry storage barrel 17 is internally provided with a stirrer 19, the stirrer 19 in the embodiment of the invention is a low-speed stirrer, the stirrer 19 is positioned in the slurry storage barrel 17 and is electrically connected with the control device, the slurry in the slurry storage barrel 17 is stirred to prevent the slurry from separating and precipitating, the low-speed stirrer can be a paddle stirrer, the paddle stirrer comprises a motor, a stirring rod and blades, one end of the stirring rod is connected with the motor, the other end of the stirring rod extends into the slurry, the blades are arranged at the tail end of the stirring rod, the preferred blades are two, the two blades are symmetrically arranged at the tail end of the stirring rod, the motor is connected with the control device, the motor rotates to drive the blades connected to the stirring rod to rotate, and the blades stir the slurry.
Further, the grouting device includes a grouting pump 20 for filling the grout in the grout storage barrel 17; one end of the grouting pump suction pipe 21 is communicated with an outlet at the bottom of the grouting storage barrel 17, and the other end of the grouting pump suction pipe 21 is connected with an inlet of the grouting pump 20, so that the grout in the grouting storage barrel 17 is conveyed to the grouting pump 20; when the liquid level meter 18 monitors that the liquid level of the slurry in the slurry storage barrel 17 reaches the lower limit of the preset warning value, the three-way reversing valve 9 reverses, the slurry is continuously conveyed into the slurry storage barrel 17, the continuous grouting process is ensured, the grouting pump slurry conveying pipe 22 is connected with an outlet of the grouting pump 20, the grouting pump slurry conveying pipe 20 is preferably an explosion-proof hose, the slurry pressurized by the grouting pump 20 can generate certain pressure, and the explosion-proof hose is selected as the grouting pump slurry conveying pipe 22 for ensuring the construction safety during slurry filling.
Furthermore, the bottoms of the pulping device, the slurry storage device and the grouting device in the automatic grouting system are provided with moving mechanisms 23, such as a rail flat car or a rubber-tyred vehicle, and the like, which are used for moving the pulping device, the slurry storage device and the grouting device, the shape, the size and the specific structure of the moving mechanisms are not particularly limited in the invention, and the moving mechanisms 23 capable of moving the grouting system can be used, the feeding device 1 in the embodiment of the invention is preferably a small-sized powder tanker for conveying powder materials, the small-sized powder tanker is used for facilitating the feeding device to smoothly enter and exit a coal mine, when other feeding devices 1 are selected, the bottom of the feeding device is also provided with the rail flat car or the rubber-tyred vehicle, so that the automatic grouting system can be integrally moved, and the grouting place only needs to integrally move the invention to a grouting point, greatly reduces the labor intensity of workers, avoids repeated disassembly and assembly of the device, prolongs the service life of the device and indirectly saves the production cost.
In the implementation of the invention, the feeding device 1, the pulping device, the pulp storage device and the grouting device are all connected with the control device through power supply cables, the number of the pulping barrels 4 and the pulp storage barrels 17 is one, when double-liquid or multiple kinds of pulp are mixed for use, a plurality of pulping barrels 4 and a plurality of pulp storage barrels 17 are arranged, the arrangement mode, the arrangement process and the use method are the same as the description process, and the description is omitted.
The invention also provides a use method of the underground movable integrated automatic grouting system for the coal mine, and the use method of the automatic grouting system comprises the following steps:
and step S1, the feeding device 1 conveys the powder to a pulping operation point, the powder enters the underground of the coal mine through the small powder tanker, and a plurality of small powder tankers can be selected to simultaneously go into the underground according to the requirement of grouting amount.
And step S2, operating the control device to start the automatic pulping system, and making the powder into slurry through conveying, mixing and stirring.
And step S201, starting the automatic grouting system, electrifying the control device, and sequentially starting the slurry pump 6, the stirrer 19 and the air compressor 2.
Step S202, the ball valve 15 is opened, the static pressure water pipe 13 supplies water into the pulping barrel 4, the water is measured by the electromagnetic flow meter 14, the ball valve 15 is closed after the water amount required by pulping is reached, and the static pressure water pipe 13 stops supplying water into the pulping barrel 4.
Step S203, starting the air compressor 2, dedusting powder by the deduster 16 under the action of the air compressor 2, then entering the pulping barrel 4, weighing the weight of the powder by the weighing sensor 8 below the pulping barrel 4, adding the powder into a preset amount, stopping feeding, wherein the slurry pump 6 is always in a running state in the process, stirring the powder and water at a high speed by the slurry pump 6 through the slurry suction pipe 7, discharging the powder and water into the pulping barrel 4 through the first slurry discharge pipe 10 and the second slurry discharge pipe 11, and discharging the slurry in the pulping barrel 4 in a vortex state, wherein the process is an internal circulation process.
Step S204, setting stirring time, carrying out internal circulation by the pulping device, reversing by the three-way reversing valve 9 after pulping is finished, conveying the pulp into the pulp storage barrel 17 through the first pulp discharge pipe 10 and the third pulp discharge pipe 12, and enabling the pulp in the pulp storage barrel 17 to be in a flowing state constantly under the action of the stirrer 19 so as to prevent the pulp from being separated and precipitated in the pulp storage barrel 17.
And S205, after the slurry in the pulping barrel 4 is discharged, repeating the steps S202, S203 and S204, and continuing the next circulation pulping process.
Step S206, a liquid level meter 18 is arranged on the pulp storage barrel 17 and used for monitoring the liquid level of the pulp in the pulp storage barrel 17, when the liquid level of the pulp reaches a preset warning value, the three-way reversing valve 9 reverses, the pulp flows out from the bottom of the pulping barrel 4 through the pulp suction pipe 7 and is injected into the pulping barrel 4 again through the first pulp discharge pipe 10 and the second pulp discharge pipe 11, and the internal circulation of the pulp in the pulping barrel 4 is realized.
And step S207, after the liquid level of the slurry in the slurry storage barrel 17 is lower than a preset warning value, reversing the three-way reversing valve 9, discharging the slurry into the slurry storage barrel 17, and continuing the slurry making circulation.
And step S3, conveying the prepared slurry through a grouting pump 20, pumping the prepared slurry out of the bottom of the slurry storage barrel 17 through a grouting pump suction pipe 21 by the grouting pump 20, outputting the slurry through the grouting pump 20 and a grouting pump slurry conveying pipe 22, and filling the position needing grouting underground.
In conclusion, the invention provides a movable integrated automatic grouting system and a using method under a coal mine, wherein the dust collector 16 removes dust when powder in the automatic grouting system enters a pulping barrel 4, so that dust pollution caused by feeding the material into a storage silo only manually is avoided, the working environment under the coal mine is improved, the powder and water are automatically added into the pulping barrel 4 according to the proportioning requirement of the slurry, the pulping barrel 4 can realize internal circulation, so that resource waste caused by slurry solidification is avoided, the whole pulping process is operated by a control device, the full automation of the pulping process is realized, the pulping work efficiency is improved, operators do not need to enter a coal mine to operate the pulping system, so that the production safety is improved, the bottom of the automatic grouting system is provided with a moving mechanism 23, so that the automatic grouting system can be integrally moved, the invention only needs to move the whole body to the grouting point for the grouting place, thereby greatly reducing the labor intensity of workers, avoiding repeated disassembly and assembly of the device, prolonging the service life of the device and indirectly saving the production cost.
The above description is only exemplary of the invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the invention is intended to be covered by the appended claims.
Claims (9)
1. The utility model provides a colliery is integrated automatic slip casting system of movable in pit which characterized in that, automatic slip casting system includes:
the feeding device is used for conveying powder to the automatic grouting system;
the pulping device is connected with the feeding device and is used for preparing powder conveyed by the feeding device into slurry;
the pulp storage device is connected with the pulping device and is used for storing the pulp made by the pulping device;
the grouting device is connected with the slurry storage device and used for conveying the slurry in the slurry storage device, and the grouting device is used for stirring the slurry at a low speed to prevent the slurry from separating and precipitating;
the moving mechanisms are arranged at the bottoms of the feeding device, the pulping device, the pulp storage device and the grouting device and are used for displacing the feeding device, the pulping device, the pulp storage device and the grouting device;
and the control device is electrically connected with the feeding device, the pulping device, the grouting device and the slurry storage device and is used for controlling the starting and stopping of the feeding device, the pulping device, the slurry storage device and the grouting device.
2. The underground coal mine movable integrated automatic grouting system according to claim 1, wherein the feeding device comprises:
the air compressor is positioned in the feeding device and used for sucking the powder and conveying the powder to the pulping device;
a material conveying pipe is arranged between the feeding device and the pulping device, one end of the material conveying pipe is connected with the air compressor, and the other end of the material conveying pipe is connected with the top of the pulping device and is used for conveying powder into the pulping device;
preferably, the feeding device is a powder tanker.
3. The underground coal mine movable integrated automatic grouting system according to claim 1, wherein the pulping device comprises:
the pulping barrel is of a sealing structure, is positioned on one side of the feeding device and is used for making pulp;
the slurry pump is positioned between the pulping barrel and the slurry storage device, an inlet of the slurry pump is connected with the bottom of the pulping barrel through a slurry suction pipe, and an outlet of the slurry pump is connected with one end of a three-way reversing valve through a third slurry discharge pipe and used for circulating slurry in the pulping barrel;
the three-way reversing valve is positioned above the slurry pump, one end of the three-way reversing valve is connected with the top of the slurry making barrel through a second slurry discharging pipe, the other end of the three-way reversing valve is connected with the top of the slurry storage device through a third slurry discharging pipe, the other end of the three-way reversing valve is connected with an outlet of the slurry pump through a first slurry discharging pipe, and the three-way reversing valve is electrically connected with the control device and used for controlling the flowing direction of slurry;
and the weighing sensor is positioned below the pulping barrel, is electrically connected with the control device and is used for weighing the weight of the pulping barrel.
4. The underground coal mine movable integrated automatic grouting system according to claim 3, wherein the slurry making device further comprises:
the dust remover is positioned above the pulping barrel, is electrically connected with the control device and is used for removing dust from powder;
preferably, the dust remover is a pulse type dust remover.
5. The underground coal mine movable integrated automatic grouting system according to claim 4, wherein the slurry making device further comprises:
the water outlet of the static pressure water pipe is arranged above the pulping barrel and is used for injecting water into the pulping barrel;
the electromagnetic flow meter is arranged on a pipeline of the static pressure water pipe and is used for metering the water yield of the static pressure water pipe;
the ball valve is arranged on a pipeline of the static pressure water pipe and is positioned at the downstream of the electromagnetic flowmeter, and the ball valve is electrically connected with the control device and is used for controlling the on-off of the static pressure water pipe.
6. The underground coal mine movable integrated automatic grouting system according to claim 1, wherein the grout storage device comprises:
the slurry storage barrel is positioned on one side of the pulping device and used for storing the slurry made by the pulping device, and the slurry storage barrel is used for stirring the slurry at a low speed to prevent the slurry from being separated and precipitated;
the liquid level meter is located above the pulp storage barrel, and the liquid level meter is electrically connected with the control device and used for monitoring the pulp liquid level in the pulp storage barrel.
7. The underground coal mine movable integrated automatic grouting system according to claim 1, wherein the grouting device comprises:
the grouting pump is positioned on one side of the slurry storage device and used for pumping slurry;
one end of the grouting pump slurry suction pipe is connected with the outlet at the bottom of the slurry storage device, and the other end of the grouting pump slurry suction pipe is connected with the inlet of the grouting pump and used for sucking slurry in the slurry storage device;
and the grouting pump slurry conveying pipe is connected with the outlet of the grouting pump and is used for conveying slurry.
8. A use method of a coal mine underground movable integrated automatic grouting system is characterized by comprising the following steps:
step S1, the feeding device conveys the powder to a pulping operation point;
step S2, starting the pulping device through a control device to prepare powder into slurry;
and step S3, delivering the slurry through a grouting device to realize grouting or filling.
9. The use method of the underground coal mine movable integrated automatic grouting system according to claim 8, wherein the step S2 specifically comprises:
step S201, starting an automatic grouting system, electrifying a control device, and sequentially starting a slurry pump, a stirrer and an air compressor;
step S202, a ball valve is opened, a static pressure water pipe supplies water into a pulping barrel, the water is measured by an electromagnetic flowmeter, the ball valve is closed after the water reaches the water amount required by pulping, and the static pressure water pipe stops supplying water into the pulping barrel;
step S203, starting an air compressor, enabling powder to enter a pulping barrel after dust removal through a dust remover under the action of the air compressor, weighing the weight of the powder through a weighing sensor below the pulping barrel, stopping feeding after the powder is added to a preset amount, enabling a slurry pump to be in a running state all the time in the process, enabling the powder and water to be discharged into the pulping barrel through a slurry suction pipe through high-speed stirring of the slurry pump through a first slurry discharge pipe and a second slurry discharge pipe, enabling slurry in the pulping barrel to be in a vortex state, and enabling the process to be an internal circulation process;
step S204, setting stirring time, carrying out internal circulation on the pulping device, reversing by using a three-way reversing valve after pulping is finished, and conveying pulp into a pulp storage barrel through a first pulp discharge pipe and a third pulp discharge pipe;
step S205, after the slurry in the pulping barrel is discharged, repeating the step S202, the step S203 and the step S204, and continuing the next circulation pulping process;
step S206, after a liquid level meter on the pulp storage barrel monitors that the liquid level of the pulp in the pulp storage barrel reaches the upper limit of a preset warning value, the three-way reversing valve reverses, the pulp flows out from the bottom of the pulping barrel through a pulp suction pipe and is injected into the pulping barrel again through a first pulp discharge pipe and a second pulp discharge pipe, and the internal circulation of the pulp in the pulping barrel is realized;
and step S207, after the liquid level in the pulp storage barrel is lower than the lower limit of the preset warning value, reversing by the three-way reversing valve, discharging pulp into the pulp storage barrel, and continuing the pulping cycle.
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| CN111877347A (en) * | 2020-07-31 | 2020-11-03 | 南京地下空间高技术产业研究院有限公司 | A novel slip casting device for underground continuous wall connects |
| CN111927495A (en) * | 2020-07-13 | 2020-11-13 | 青岛市地铁六号线有限公司 | Intelligent grouting equipment suitable for novel anchoring material and construction method thereof |
| CN112145226A (en) * | 2020-10-26 | 2020-12-29 | 辽宁工程技术大学 | Coal mine goaf grouting filling device and method |
| CN112443341A (en) * | 2020-11-24 | 2021-03-05 | 江苏徐工工程机械研究院有限公司 | Movable grouting equipment |
| CN113482876A (en) * | 2021-06-01 | 2021-10-08 | 武汉谦诚桩工科技股份有限公司 | One-to-many pulp feeding method and system of automatic pulp feeding device |
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| CN118309486A (en) * | 2024-04-23 | 2024-07-09 | 中国矿业大学(北京) | Movable automatic grouting fire prevention and extinguishing equipment for coal mine ground |
| CN118326979A (en) * | 2024-06-12 | 2024-07-12 | 榆林学院 | Ground grouting equipment for water conservation exploitation |
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| CN113503169A (en) * | 2021-07-01 | 2021-10-15 | 淮南东华欧科矿山支护设备有限责任公司 | Mining portable intelligent slip casting system that hangs |
| CN113503169B (en) * | 2021-07-01 | 2024-03-12 | 淮南东华欧科矿山支护设备有限责任公司 | Mining suspension mobile intelligent grouting system |
| CN114347246A (en) * | 2021-11-30 | 2022-04-15 | 广东天凛高新科技有限公司 | Building slurrying system |
| CN114412512A (en) * | 2022-01-24 | 2022-04-29 | 渭南陕煤启辰科技有限公司 | Remote rapid and accurate grouting construction device and using method |
| CN118309486A (en) * | 2024-04-23 | 2024-07-09 | 中国矿业大学(北京) | Movable automatic grouting fire prevention and extinguishing equipment for coal mine ground |
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