CN110953012A - Efficient cleaning system and method for hydraulic slag removal of floor rock roadway cross-layer drilling - Google Patents
Efficient cleaning system and method for hydraulic slag removal of floor rock roadway cross-layer drilling Download PDFInfo
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- CN110953012A CN110953012A CN201911216884.3A CN201911216884A CN110953012A CN 110953012 A CN110953012 A CN 110953012A CN 201911216884 A CN201911216884 A CN 201911216884A CN 110953012 A CN110953012 A CN 110953012A
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- 238000005553 drilling Methods 0.000 title claims abstract description 47
- 239000011435 rock Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004140 cleaning Methods 0.000 title claims abstract description 21
- 239000002893 slag Substances 0.000 title claims description 15
- 239000003245 coal Substances 0.000 claims abstract description 191
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 183
- 238000000926 separation method Methods 0.000 claims abstract description 87
- 238000003825 pressing Methods 0.000 claims abstract description 65
- 238000000605 extraction Methods 0.000 claims abstract description 27
- 239000000203 mixture Substances 0.000 claims abstract description 26
- 238000007599 discharging Methods 0.000 claims description 18
- 238000005086 pumping Methods 0.000 claims description 17
- 238000010276 construction Methods 0.000 claims description 13
- 239000004568 cement Substances 0.000 claims description 7
- 239000003250 coal slurry Substances 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 2
- 239000013049 sediment Substances 0.000 claims description 2
- 230000032258 transport Effects 0.000 claims description 2
- 239000000284 extract Substances 0.000 claims 3
- 230000002265 prevention Effects 0.000 abstract description 4
- 238000003809 water extraction Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 54
- 238000011010 flushing procedure Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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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
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/04—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams
- B30B9/06—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams co-operating with permeable casings or strainers
- B30B9/062—Extrusion presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/26—Permeable casings or strainers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/006—Production of coal-bed methane
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
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- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
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- Oil, Petroleum & Natural Gas (AREA)
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Abstract
The invention discloses a hydraulic slag-removing efficient cleaning system and method for a floor rock roadway cross-layer drill hole, and relates to the technical field of coal and gas outburst prevention and control, wherein the system comprises an extraction device, a coal water separation device, a filter pressing device and a transportation device, the extraction device comprises a drilling machine and an extraction pipeline, a coal water extraction pipe of the extraction pipeline is connected with the coal water separation device, a coal water separation bin of the coal water separation device is connected with a filter pressing pump of the filter pressing device through a coal unloading pipe, and a coal cake is transported through the transportation device after the filter pressing device extrudes coal slime; when the system works, firstly, a drill is used for drilling, then an extraction pipeline is installed, a coal-water-gas mixture is extracted, the gas is collected through a gas extraction pipe, and the coal-water mixture enters a coal-water separation device; the coal-water separation device is used for separating coal from water and collecting residual gas; the coal slime is extruded into coal cakes after entering a filter pressing device, and then is transported out through a transportation device; the system and the method can efficiently separate the coal-water-gas mixture, and improve the gas extraction operation efficiency.
Description
Technical Field
The invention relates to the technical field of coal and gas outburst prevention and control, in particular to a high-efficiency cleaning system and method for hydraulic slag removal of a floor rock roadway cross-layer drill hole.
Background
Along with the increase of the coal mining depth, the ground stress, the gas pressure and the content of a coal bed are obviously increased, and the prevention and control difficulty of coal and gas outburst disasters is obviously increased.
At present, aiming at a soft low-permeability outburst coal seam, a floor rock roadway cross-layer drilling hydraulic coal flushing pressure relief anti-reflection pre-pumping technology is generally adopted, and the purposes of effectively unloading original stress of the coal seam and increasing permeability are achieved by drilling a hole to a cross layer in the construction process of the floor rock roadway of the coal seam, and increasing the water pressure, flushing the hole wall of the drilled hole in the soft coal seam, flushing a large amount of coal bodies and increasing the hole diameter of the drilled hole in the drilling and coal passing construction process. Due to the fact that the coal body is soft and the gas pressure is large, a large amount of coal, gas and water can be discharged in the drilling construction and hydraulic coal flushing processes. The discharged mixture is usually not treated by any measures, so that except for gas overrun accidents, the discharged coal-water is quickly accumulated on a roadway bottom plate to form large-area coal slurry, the subsequent drilling construction and hole sealing extraction operation are seriously influenced, and the working efficiency is reduced; even if the blowout prevention hole device is adopted, coal slime accumulated on the bottom plate of the roadway cannot be timely treated, and the operation environment is influenced.
Therefore, the efficient cleaning system for hydraulic slag removal of the floor rock roadway cross-layer drilling, which integrates extraction, coal-water separation, filter pressing and transportation, is needed to be provided, so that efficient separation of coal-water-gas is realized, coal transportation is completed, a large amount of coal slime generated in floor rock roadway drilling construction is effectively treated, the operating environment is improved, the operating efficiency is improved, and safe production is guaranteed.
Disclosure of Invention
In order to better treat the hydraulic slag discharge of the cross-layer drill hole, efficiently separate a coal-water-gas mixture, recover coal resources and improve the operating environment, the invention provides a high-efficiency cleaning system and a high-efficiency cleaning method for the hydraulic slag discharge of the cross-layer drill hole of a bottom plate rock roadway, and the specific technical scheme is as follows.
The utility model provides a high-efficient clearance system of sediment is arranged to bottom plate rock gangway cross drilling water conservancy, is including taking out and adopt device, coal water separator, filter pressing device and conveyer, take out and adopt the device including rig and taking out and adopt the pipeline, take out and adopt the coal water pump tube of pipeline and link to each other with coal water separator, coal water separator's coal water separation storehouse links to each other through unloading coal pipe and filter pressing device's filter-pressing pump, and filter pressing device conveys the coal cake through conveyer behind the extrusion coal slime.
Preferably, the extraction pipeline comprises a sleeve, a three-way pipe, a gas drainage pipe and a coal water drainage pipe, the sleeve is fixedly installed at the orifice position of the drill hole, the three-way pipe is connected with the sleeve, the joints of the gas drainage pipe and the three-way pipe are arranged above the three-way pipe, and the joints of the coal water drainage pipe and the three-way pipe are arranged below the three-way pipe.
Preferably, the coal water drainage pipe is connected with a coal water separation bin, and the coal water separation bin of the coal water separation device is provided with a coal guide pipe, a coal discharge pipe, a gas drainage pipe, a gas filter screen, a water drain pipe, a water pipe filter screen, a valve, a vibrating screen and a pressure gauge; the coal guide pipe is arranged above the coal-water separation bin and is connected with the coal-water pumping and discharging pipe, the gas pumping and discharging pipe is arranged on the upper portion of the coal-water separation bin, the vibrating screen is arranged on the lower portion in the coal-water separation bin, the coal unloading pipe is arranged on the side face of the coal-water separation bin and on the vibrating screen, and the water discharging pipe is arranged at the bottom of the coal-water separation bin.
It is further preferred that the coal guide pipe, the coal discharge pipe, the gas drainage pipe and the water discharge pipe are all provided with valves, the top of the coal-water separation bin is provided with a pressure gauge, the gas drainage pipe is also provided with a gas filter screen, and the water discharge pipe is also provided with a water pipe filter screen; the water is drained to a ditch of the roadway by the drain pipe.
Preferably, the screen mesh of the vibrating screen is obliquely arranged, the lower position side and the higher position side of the screen mesh of the vibrating screen are both fixed on the inner wall of the coal water separation bin, and the coal unloading pipe is arranged on one side of the lower position of the vibrating screen; the bottom of the coal-water separation bin is of an inverted cone structure.
Still preferably, filter pressing device includes filter-press pump and pressure filter, the pressure filter is provided with spiral hydraulic pump, coal slime drainage pipe, push plate machine, pressure strip, filter plate, crossbeam, thrust plate and breakwater, and coal slime drainage pipe and coal-water separation storehouse's coal unloading pipe link to each other, and spiral hydraulic pump and crossbeam are coaxial to be arranged in the pressure filter, and spiral hydraulic pump and push plate machine link to each other, and the pressure strip is connected to the pressure strip machine, and pressure strip and thrust plate are arranged relatively at the crossbeam both ends, are provided with a plurality of filter plates between pressure strip and the thrust plate.
It is also preferable that a plurality of filter plates are uniformly arranged along the cross beam, and the lower parts of the filter plates are provided with water outlets; the water baffle is arranged below the filter plate.
It is also preferred that the drill rig is mounted on a drill rig stand, the drill rig stand is disposed on the seat stand, the drill rods include a large diameter drill rod and a small diameter drill rod, the drill rods are mounted on the drill rig, and the drill rig stand adjusts the angle and height of the drill rods.
It is also preferred that the transport means comprises a belt conveyor and a mine car, the belt conveyor conveying the briquette produced by the press filtration device to the mine car.
A hydraulic slag-removing efficient cleaning method for a floor rock roadway cross-layer drill hole utilizes the hydraulic slag-removing efficient cleaning system for the floor rock roadway cross-layer drill hole, and comprises the following steps:
constructing a 1m drill hole through a large-diameter drill rod, mounting a sleeve after the drill rod is withdrawn, fixing the sleeve by using cement, and continuously constructing the drill hole by using a small-diameter drill rod;
step two, after the drilling construction is completed, withdrawing the drill rod, connecting a three-way pipe to the sleeve, sequentially connecting a gas drainage pipe and a coal water drainage pipe to the three-way pipe, and sequentially connecting an extraction pipeline with a coal water separation device and a filter pressing device;
thirdly, extracting a gas-water-coal mixture through a drill hole, enabling the coal-water mixture to enter a coal water separation bin under the action of self weight, and collecting the gas through a gas drainage pipe;
opening a vibrating screen in the coal-water separation bin to fully separate the coal-water mixture, sending the separated wet coal into a filter press through a coal unloading pipe and a filter press pump, and collecting residual gas through a gas pumping and discharging pipe of the coal-water separation bin;
fifthly, the plate pressing machine works to drive the pressing plate and the filter plates to move along the cross beam, and the distance between the filter plates is adjusted;
starting a filter press pump, sending wet coal in the coal-water separation bin into a filter press, starting the plate press again after the wet coal enters a space between the filter plates, separating the wet coal between the filter plates again, and discharging water through a water outlet on the filter plates;
and step seven, opening the water baffle, driving the pressing plate to be far away from the thrust plate through the plate pressing machine, enabling the coal cakes between the filter plates to fall into the belt conveyor, and conveying the coal cakes to the mine car through the belt conveyor.
The beneficial effects of the invention include:
(1) the efficient cleaning system for hydraulic slag removal of the floor rock roadway cross-layer drill hole is provided, an extraction pipeline is designed, a gas-coal-water mixture is primarily separated in a three-way pipe, gas is collected, the coal-water mixture is sent to a coal-water separation device through the pipeline, and residual gas is continuously collected while the coal-water separation device separates coal from water; the coal-water separation device conveys the separated wet coal to a filter press through a filter press pump, and the filter press makes coal cakes and sends the coal cakes out through a conveying device.
(2) The coal water separation device of the system is connected with the filter pressing device, the coal water separation bin completes primary coal water separation in a roadway, water is sent into a ditch, and a coal-water mixture is separated again in the process of pressing coal cakes in the filter pressing device; the separation of coal-water-gas mixture is completed by the cooperation of the whole devices of the system, coal is made into usable coal cakes, the blockage in a roadway is avoided, the operation environment is obviously improved, the operation efficiency is improved, and the safety production is ensured.
(3) The method realizes the separation of gas-water-coal mixture in the hydraulic slag removal of the floor rock drift cross-layer drill hole by mutually matching the steps of extraction, coal-water separation, filter pressing, transportation and the like, can effectively and timely separate and move out of a production area, solves the problem that a large amount of coal, gas and water can be discharged in the application process of the hydraulic coal flushing pressure relief permeability-increasing pre-extraction technology, avoids the gas overrun, and ensures the construction safety of the technology.
Drawings
FIG. 1 is a schematic diagram of a hydraulic slag-removing efficient cleaning system for a floor rock roadway cross-layer drilling hole;
FIG. 2 is a schematic diagram of a rig construction layout;
FIG. 3 is a schematic sectional structure diagram of a coal-water separation bin;
FIG. 4 is a schematic view of the filter press construction;
in the figure: 1-casing, 2-three-way pipe, 3-gas drainage pipe, 4-coal water drainage pipe, 5-drill pipe, 6-drill stand, 7-drill, 8-seat stand, 9-coal water separation bin, 10-gas drainage pipe, 11-gas drainage pipe valve, 12-coal discharge pipe, 13-coal discharge pipe valve, 14-coal guide pipe, 15-coal guide pipe valve, 16-gas filter screen, 17-water discharge pipe, 18-water discharge pipe valve, 19-water pipe filter screen, 20-vibrating screen, 21-pressure gauge, 22-filter press, 23-filter press, 24-spiral hydraulic pump, 25-coal slurry drainage pipe, 26-press, 27-press plate, 28-filter plate, 29-water discharge port, 30-thrust plate, 31-beam, 32-water baffle, 33-belt conveyor and 34-mine car.
Detailed Description
Referring to fig. 1 to 4, the present invention provides a floor rock roadway cross-layer drilling hydraulic slag removal efficient cleaning system and method as follows.
Aiming at a soft low-permeability outburst coal seam, a drilling hydraulic coal flushing pressure relief and permeability increase pre-pumping technology is adopted, upward cross-layer drilling is conducted in a tunnel with a coal seam bottom plate as rock, gas is pumped by a method of increasing water pressure, flushing the hole wall of the drilling hole in the soft coal seam, flushing a large amount of coal bodies and increasing the hole diameter of the drilling hole, a large amount of coal-gas-water mixture is discharged by the drilling hole in the hydraulic coal flushing process, and in order to improve the treatment efficiency of the coal-gas-water mixture, the high-efficiency bottom plate rock tunnel cross-layer drilling hydraulic slag removal cleaning system is provided.
The specific structure of the hydraulic slag-removing efficient cleaning system for the floor rock roadway cross-layer drilling comprises an extraction device, a coal water separation device, a filter pressing device and a conveying device, wherein the extraction device comprises a drilling machine 7 and an extraction pipeline, a coal water extraction pipe 4 of the extraction pipeline is connected with the coal water separation device, a coal water separation bin 9 of the coal water separation device is connected with a filter pressing pump 22 of the filter pressing device through a coal unloading pipe 12, and coal cakes are conveyed through the conveying device after the filter pressing device extrudes coal slime. Through designing an extraction pipeline, primarily separating the gas-coal-water mixture in a three-way pipe, collecting the gas, sending the coal-water mixture into a coal-water separation device through the pipeline, and continuously collecting the residual gas while the coal-water separation device separates the coal from the water; the coal-water separation device is used for pumping the separated wet coal to a filter press through a filter press pump, and the filter press is used for making coal cakes and sending the coal cakes out through a conveying device; the cooperation of all the devices of the system completes the separation of coal-water-gas mixture, makes coal into usable coal cakes, avoids the blockage in a roadway, obviously improves the operating environment, improves the operating efficiency and ensures the safe production
The extraction pipeline of the extraction device comprises a sleeve 1, a three-way pipe 2, a gas drainage pipe 3 and a coal water drainage pipe 4, wherein the sleeve 1 is fixedly arranged at the orifice position of a drill hole and is fixed by quick-setting cement, the three-way pipe 2 is connected with the sleeve 1 and can be connected through threads or a flange plate, the interfaces of the gas drainage pipe 3 and the three-way pipe 2 are arranged above the three-way pipe, the interfaces of the coal water drainage pipe 4 and the three-way pipe 2 are arranged below the three-way pipe, and the interface of the gas drainage pipe 3 is arranged at the upstream of the interface of the coal water drainage pipe; in addition, a plurality of valves are arranged on the pumping pipeline, and valves are also arranged on each branch of the three-way pipe respectively, so that the inspection and maintenance are convenient.
Coal water drainage pipe 4 and coal water separation bin 9 link to each other, coal water separation bin 9 can separate the coal water to can also collect remaining gas, coal water separation bin 9 of coal water separator is provided with leads coal pipe 14, unloading pipe 12, gas drainage pipe 10, gas filter screen 16, drain pipe 17, water pipe filter screen 19, valve, shale shaker 20 and manometer 21, the valve includes gas drainage pipe valve 11, unloading pipe valve 13, leads coal pipe valve 15 and drain pipe valve 18. The coal guide pipe 14 is arranged above the coal water separation bin 9 and is connected with the coal water pumping and discharging pipe 4, the gas pumping and discharging pipe 10 is arranged at the upper part of the coal water separation bin 9, the vibrating screen 20 is arranged at the lower part in the coal water separation bin 9, the coal discharging pipe 12 is arranged on the side surface of the coal water separation bin and above the vibrating screen 20, and the water discharging pipe 17 is arranged at the bottom of the coal water separation bin. All be provided with the valve on coal guide pipe 14, the pipe 12 that unloads coal, gas drainage pipe 10 and the drain pipe 17, the top of coal moisture separation bin 9 is provided with manometer 21 for confirm whether need discharge the remaining gas of collection, still be provided with gas filter screen 16 on the gas drainage pipe 10, still be provided with water pipe filter screen 19 on the drain pipe 17, the filter screen is used for preventing the pipeline from blockking up, and the filter screen needs regularly to be cleared up. The water is drained to a ditch of the roadway by the drain pipe, so that the roadway is prevented from being influenced by hydraulic coal flushing construction. The screen mesh of the vibrating screen is arranged obliquely, so that the coal slime in the coal-water separation bin can be conveniently pumped into the filter pressing system by the filter pressing pump, the lower position side and the higher position side of the screen mesh of the vibrating screen 20 are fixed on the inner wall of the coal-water separation bin, and the coal unloading pipe 12 is arranged on one side of the lower position of the vibrating screen; the bottom of the coal water separation bin 9 is of an inverted cone structure, so that separated water can flow into a water discharge pipe of the coal water separation bin 9 quickly, the coal water is prevented from being accumulated in the coal water separation bin to influence the separation efficiency of a coal water mixture, and meanwhile, a certain amount of water can be accumulated to seal the water discharge pipe to prevent gas from escaping.
The filter pressing device comprises a filter pressing pump 22 and a filter press 23, the filter pressing pump 22 is used for extracting wet coal in the coal-water separation bin, and the filter press 23 can process coal slurry to make coal cakes and further separate the coal and the water. The filter press 23 is provided with a spiral hydraulic pump 24, a coal slurry pumping and discharging pipe 25, a plate pressing machine 26, a pressing plate 27, filter plates 28, a cross beam 31, a thrust plate 30 and a water baffle 32, the coal slurry pumping and discharging pipe 25 is connected with a coal unloading pipe of the coal water separation bin 9, the spiral hydraulic pump 24 and the cross beam 31 are coaxially arranged in the filter press 23, the spiral hydraulic pump 24 is connected with the plate pressing machine 26, the pressing plate 26 is connected with the pressing plate 27, the pressing plate 27 and the thrust plate 30 are oppositely arranged at two ends of the cross beam 31, a plurality of filter plates 28 are arranged between the pressing plate 27 and the thrust plate 30, the more the filter plates 28, the greater the working capacity of. The plurality of filter plates 28 are uniformly distributed along the cross beam 31, the distance between the filter plates 28 is adjusted by the pressing plate, and the lower parts of the filter plates 28 are provided with water outlets, so that water can be conveniently squeezed and discharged; the water baffle 32 is arranged below the filter plate, and water flows out of the filter press 23 along the water baffle under the action of the water baffle 32 after the filter plate is extruded.
The drilling machine 7 is installed on the drilling machine support, the drilling machine support 6 is arranged on the seat stand, the drilling machine support 6 can be adjusted to be any angle along a vertical rod fixed on the seat stand 8, and the seat stand 8 can be fixed in a roadway. The drill rod 5 comprises a large-diameter drill rod and a small-diameter drill rod, the large-diameter drill rod or the small-diameter drill rod can be replaced when the drilling machine 7 drills, the drill rod 5 is installed on the drilling machine, and the angle and the height of the drill rod are adjusted by the drill machine support 6.
The transportation device comprises a belt conveyor 33 and a mine car 34, the belt conveyor 33 is arranged close to the filter press, the coal cake made by the filter press 23 is conveyed to the mine car by the belt conveyor 33, and the coal cake made by the filter press device is conveyed to the mine car by the belt conveyor 33.
A hydraulic slag-removing efficient cleaning method for a floor rock roadway cross-layer drill hole utilizes the hydraulic slag-removing efficient cleaning system for the floor rock roadway cross-layer drill hole, and comprises the following steps:
step one, constructing a drill hole with the diameter of about 1m through a large-diameter drill rod, mounting a sleeve after the drill rod is withdrawn, fixing the sleeve by using cement, selecting quick-setting cement as the cement, and replacing the quick-setting cement with a small-diameter drill rod to continue constructing the drill hole. Wherein the large diameter drilling hole is a drilling hole with the diameter of about 120mm or larger, and the small diameter drilling hole is a drilling hole with the diameter of about 75mm or smaller. Wherein the small diameter bore hole can be continued in the direction of the casing.
And step two, after the drilling construction is completed, withdrawing the drill rod, connecting a three-way pipe to the sleeve, sequentially connecting a gas drainage pipe and a coal water drainage pipe to the three-way pipe, and sequentially connecting an extraction pipeline with a coal water separation device and a filter pressing device.
And step three, forming an extraction pipeline, starting to extract a gas-water-coal mixture through a drill hole, allowing the coal-water mixture to enter a coal water separation bin under the action of self weight, and collecting the gas through a gas drainage pipe.
And step four, opening a vibrating screen in the coal-water separation bin to fully separate the coal-water mixture, sending the separated wet coal into a filter press through a coal unloading pipe and a filter press pump, and collecting the residual gas through a gas pumping and discharging pipe of the coal-water separation bin.
And step five, the plate pressing machine works to drive the pressing plate and the filter plates to move along the cross beam, and the distance between the filter plates is adjusted.
And step six, starting a filter pressing pump, sending the wet coal in the coal-water separation bin into a filter press, starting the plate pressing machine again after the wet coal enters the space between the filter plates, separating the wet coal between the filter plates again, and discharging water through a water outlet on the filter plates.
And step seven, opening the water baffle, driving the pressing plate to be far away from the thrust plate through the plate pressing machine, enabling the coal cakes between the filter plates to fall into the belt conveyor, and conveying the coal cakes to the mine car through the belt conveyor.
The method realizes the separation of gas-water-coal mixture in the hydraulic slag removal of the floor rock drift cross-layer drill hole by mutually matching the steps of extraction, coal-water separation, filter pressing, transportation and the like, can effectively and timely separate and move out of a production area, solves the problem that a large amount of coal, gas and water can be discharged in the application process of the hydraulic coal flushing pressure relief permeability-increasing pre-extraction technology, avoids the gas overrun, and ensures the construction safety of the technology.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a high-efficient clearance system of sediment is arranged to bottom plate rock gangway cross drilling water conservancy, which is characterized in that, including taking out and extracting device, coal water separator, filter pressing device and conveyer, take out and extract the device including rig and taking out and extract the pipeline, the coal water pump pipe that takes out and extracts the pipeline links to each other with coal water separator, and coal water separator's coal water separation storehouse links to each other through unloading coal pipe and filter pressing pump of filter pressing device, and the filter pressing device transports the coal cake through the conveyer after the extrusion coal slime of filter pressing device.
2. The hydraulic slag-removing efficient cleaning system for the floor rock roadway cross-layer drill hole according to claim 1, wherein the extraction pipeline comprises a sleeve, a three-way pipe, a gas drainage pipe and a coal water drainage pipe, the sleeve is fixedly installed at the orifice position of the drill hole, the three-way pipe is connected with the sleeve, the interfaces of the gas drainage pipe and the three-way pipe are above the three-way pipe, and the interfaces of the coal water drainage pipe and the three-way pipe are below the three-way pipe.
3. The system for efficiently cleaning the floor rock roadway through-hole hydraulic slag discharge according to claim 1, wherein the coal water drainage pipe is connected with a coal water separation bin, and the coal water separation bin of the coal water separation device is provided with a coal guide pipe, a coal discharge pipe, a gas drainage pipe, a gas filter screen, a drain pipe, a water pipe filter screen, a valve, a vibrating screen and a pressure gauge; the coal guide pipe is arranged above the coal-water separation bin and is connected with the coal-water pumping and discharging pipe, the gas pumping and discharging pipe is arranged on the upper portion of the coal-water separation bin, the vibrating screen is arranged on the lower portion in the coal-water separation bin, the coal unloading pipe is arranged on the side face of the coal-water separation bin and on the vibrating screen, and the water discharging pipe is arranged at the bottom of the coal-water separation bin.
4. The system of claim 3, wherein valves are disposed on the coal guide pipe, the coal discharge pipe, the gas drainage pipe and the water discharge pipe, a pressure gauge is disposed on the top of the coal-water separation bin, a gas filter screen is disposed on the gas drainage pipe, and a water pipe filter screen is disposed on the water discharge pipe; the water is drained to a ditch of the roadway by the drain pipe.
5. The floor rock roadway cross-layer drilling hydraulic slag removal efficient cleaning system according to claim 3, wherein the screen mesh of the vibrating screen is obliquely arranged, the lower position side and the upper position side of the screen mesh of the vibrating screen are fixed on the inner wall of the coal water separation bin, and the coal unloading pipe is arranged on the lower position side of the vibrating screen; the bottom of the coal-water separation bin is of an inverted cone structure.
6. The system of claim 1, wherein the filter pressing device comprises a filter pressing pump and a filter press, the filter press is provided with a spiral hydraulic pump, a coal slurry pumping pipe, a plate pressing machine, a pressing plate, a filter plate, a cross beam, a thrust plate and a water baffle plate, the coal slurry pumping pipe is connected with a coal unloading pipe of the coal-water separation bin, the spiral hydraulic pump and the cross beam are coaxially arranged in the filter press, the spiral hydraulic pump is connected with the plate pressing machine, the plate pressing machine is connected with the pressing plate, the pressing plate and the thrust plate are oppositely arranged at two ends of the cross beam, and a plurality of filter plates are arranged between the pressing plate and the thrust plate.
7. The system of claim 6, wherein the plurality of filter plates are uniformly arranged along the cross beam, and the lower parts of the filter plates are provided with water outlets; the water baffle is arranged below the filter plate.
8. The system of claim 1, wherein the drilling machine is mounted on a drilling machine support, the drilling machine support is arranged on the seat platform, the drilling rods comprise a large-diameter drilling rod and a small-diameter drilling rod, the drilling rods are mounted on the drilling machine, and the drilling machine support adjusts the angle and the height of the drilling rods.
9. The system of claim 1, wherein the transportation device comprises a belt conveyor and a mine car, and the belt conveyor conveys the coal cake made by the filter pressing device to the mine car.
10. A method for efficiently cleaning hydraulic slag discharge of a floor rock tunnel cross-layer drill hole, which is characterized in that the system for efficiently cleaning hydraulic slag discharge of the floor rock tunnel cross-layer drill hole as claimed in any one of claims 1 to 9 is utilized, and the method comprises the following steps:
constructing a 1m drill hole through a large-diameter drill rod, mounting a sleeve after the drill rod is withdrawn, fixing the sleeve by using cement, and continuously constructing the drill hole by using a small-diameter drill rod;
step two, after the drilling construction is completed, withdrawing the drill rod, connecting a three-way pipe to the sleeve, sequentially connecting a gas drainage pipe and a coal water drainage pipe to the three-way pipe, and sequentially connecting an extraction pipeline with a coal water separation device and a filter pressing device;
thirdly, extracting a gas-water-coal mixture through a drill hole, enabling the coal-water mixture to enter a coal water separation bin under the action of self weight, and collecting the gas through a gas drainage pipe;
opening a vibrating screen in the coal-water separation bin to fully separate the coal-water mixture, sending the separated wet coal into a filter press through a coal unloading pipe and a filter press pump, and collecting residual gas through a gas pumping and discharging pipe of the coal-water separation bin;
fifthly, the plate pressing machine works to drive the pressing plate and the filter plates to move along the cross beam, and the distance between the filter plates is adjusted;
starting a filter press pump, sending wet coal in the coal-water separation bin into a filter press, starting the plate press again after the wet coal enters a space between the filter plates, separating the wet coal between the filter plates again, and discharging water through a water outlet on the filter plates;
and step seven, opening the water baffle, driving the pressing plate to be far away from the thrust plate through the plate pressing machine, enabling the coal cakes between the filter plates to fall into the belt conveyor, and conveying the coal cakes to the mine car through the belt conveyor.
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| CN201911216884.3A CN110953012A (en) | 2019-12-03 | 2019-12-03 | Efficient cleaning system and method for hydraulic slag removal of floor rock roadway cross-layer drilling |
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