CN115324508B - Sealed coal drilling cutting collecting method for vertical shaft tunneling working face - Google Patents
Sealed coal drilling cutting collecting method for vertical shaft tunneling working face Download PDFInfo
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- CN115324508B CN115324508B CN202211008357.5A CN202211008357A CN115324508B CN 115324508 B CN115324508 B CN 115324508B CN 202211008357 A CN202211008357 A CN 202211008357A CN 115324508 B CN115324508 B CN 115324508B
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- bottom plate
- drill
- guide pipe
- outer cover
- hole
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- 239000003245 coal Substances 0.000 title claims abstract description 59
- 238000005520 cutting process Methods 0.000 title claims abstract description 46
- 238000005553 drilling Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000005641 tunneling Effects 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 20
- 238000012937 correction Methods 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000003795 desorption Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
- E21B21/015—Means engaging the bore entrance, e.g. hoods for collecting dust
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
- E21B21/011—Dust eliminating or dust removing while drilling
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Sampling And Sample Adjustment (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Drilling And Boring (AREA)
Abstract
The invention relates to the technical field of coal drill bits collection, and provides a method for collecting coal drill bits in a sealed manner on a vertical tunneling working face, which comprises the following steps: s1, inserting the lower end of a guide pipe into a drilling hole, enabling a bottom plate to be parallel to the ground where the drilling hole is located, and fixing the bottom plate above the drilling hole; s2, inserting a drill rod into the outer cover through the first through hole, and then inserting the drill rod into the drilled hole through the guide pipe; s3, the drilling machine drives the drill rod to rotate, and discharged coal drill bits enter the guide pipe and then fall into the drill bit collecting cavity through the guide pipe; s4, after collection is completed, separating the device from the drill rod, and taking out the coal drill bits collected in the drill chip collecting cavity. The problems that in the related art, sufficient coal drill cuttings with specific particle sizes are not easy to collect or the collection time is over-limited, so that the success rate of index measurement is low, re-drilling returns to frequency reproduction, and the working efficiency is low are solved.
Description
Technical Field
The invention relates to the technical field of coal drill bits collection, in particular to a method for collecting coal drill bits in a sealed manner on a vertical tunneling working face.
Background
The method requires collecting coal cuttings with specific particle size at the drill hole orifice, has the regulation of the amount of coal cuttings and the limitation of the collection time, whether the collected coal cuttings with specific particle size are sufficient or not, whether the collection speed accords with the regulation time or not, is a determining factor influencing the accuracy of measuring the gas desorption index of the cuttings, and also determines the success or failure of measurement.
In the past, when collecting the coal drill cuttings discharged by compressed air at the drill hole opening, because the scattered area of drill cuttings at the drill hole opening is great, and because the geological hydrologic environment of the roadway is relatively poor, the impurities such as mud, water, rock (coal) are inevitably mixed in the coal drill cuttings, so often be difficult to collect sufficient coal drill cuttings with specific particle size or the collection time is overrun, thereby the success rate of index measurement is not high, the re-drilling returns to the frequency of labor, and the work efficiency is very low.
Disclosure of Invention
The invention provides a method for collecting coal drill cuttings in a sealed manner on a vertical tunneling working face, which solves the problems that in the prior art, sufficient coal drill cuttings with specific particle sizes are not easy to collect or the collection time is over-limited, so that the success rate of index measurement is low, re-drilling returns to frequency and the working efficiency is low.
The technical scheme of the invention is as follows: the utility model provides a sealed coal drill bits collection method of shaft heading face, the device that this method used includes the drilling cuttings collector, and the key lies in, the drilling cuttings collector includes the bottom plate, set up the inner tube above the bottom plate, set up just be located the outer cover of inner tube periphery and set up the pipe inside the inner tube above the bottom plate, the cavity between outer cover and the inner tube is the drilling cuttings collection chamber, set up the first via hole that is used for passing the drilling rod in the position that corresponds with inner tube upper end opening at the outer cover top, set up the second via hole that is used for passing the drilling rod in the position that corresponds with inner tube lower extreme on the bottom plate, the lower extreme of pipe passes the second via hole and extends to the bottom plate below, the upper end of pipe communicates with drilling cuttings collection chamber, on this basis, the method includes the following steps:
s1, inserting the lower end of a guide pipe into a drilling hole, enabling a bottom plate to be parallel to the ground where the drilling hole is located, and fixing the bottom plate above the drilling hole;
s2, inserting a drill rod into the outer cover through the first through hole, and then inserting the drill rod into the drilled hole through the guide pipe;
s3, the drilling machine drives the drill rod to rotate, and discharged coal drill bits enter the guide pipe and then fall into the drill bit collecting cavity through the guide pipe;
s4, after collection is completed, separating the device from the drill rod, and taking out the coal drill bits collected in the drill chip collecting cavity.
A group of inclination correcting screws are connected to the bottom plate in a threaded mode, one ends of the inclination correcting screws are located above the bottom plate, the other ends of the inclination correcting screws extend to the lower portion of the bottom plate, and on the basis, step S1 is specifically that the lower ends of the guide pipes are inserted into the drilled holes, the lengths of the inclination correcting screws located below the bottom plate are adjusted, the bottom plate is parallel to the ground where the drilled holes are located, the inclination correcting screws are fixed with the ground, and the bottom plate is fixed above the drilled holes.
The method comprises the steps of S0, specifically, splicing the two outer cover units together, connecting the upper ends of the guide pipes with the two inner barrel units spliced together in a threaded manner, inserting the lower ends of the guide pipes into the second through holes on the bottom plate, and placing the inner barrel and the outer cover above the bottom plate;
on the basis, the separation of the device from the drill rod in step S4 specifically means that the guide pipe is separated from the inner cylinder unit, and then the two outer cover units are separated to separate the guide pipe from the drill rod.
The two ends of each outer cover unit are fixed with connecting plates, the inner side of the lower end of each connecting plate extends into the inner cylinder, the inner cylinder is fixedly connected with the connecting plates, the outer ends of the connecting plates protrude out of the outer cover units and are provided with mounting holes, locking bolts and locking nuts are additionally arranged, and the connecting plates at the same ends of the two outer cover units are detachably connected by means of the matching of the locking bolts and the locking nuts.
The device also comprises a sealing ring plate connected between the lower end of the outer cover unit and the lower end of the inner cylinder unit.
A handle is fixed to the outer wall of each housing unit.
A support plate is arranged between the guide pipe and the inner cylinder.
The inner cylinder is of a conical structure, and the shape of the side plate of the outer cover is matched with that of the inner cylinder.
A sealing rubber pad is arranged on the upper end surface of the outer cover.
The outer diameter of the sealing rubber cushion is larger than that of the upper end face of the outer cover, and a supporting rib plate is fixed between the lower end face of the sealing rubber cushion and the outer cover.
The working principle and the beneficial effects of the invention are as follows: an inner cylinder and an outer cover are arranged above a bottom plate, a guide pipe is arranged inside the inner cylinder, a cavity between the outer cover and the inner cylinder is a drilling cuttings collecting cavity, a first through hole for penetrating a drill rod is formed in the position, corresponding to an opening at the upper end of the inner cylinder, of the top of the outer cover, a second through hole for penetrating the drill rod is formed in the position, corresponding to the lower end of the inner cylinder, of the bottom plate, the lower end of the guide pipe penetrates through the second through hole and extends to the lower portion of the bottom plate, and the upper end of the guide pipe is communicated with the drilling cuttings collecting cavity. During the use, insert the pipe lower extreme in the drilling and make the bottom plate parallel with the ground that the drilling was located, fix the bottom plate in drilling top, the drilling rod is inserted in the dustcoat by first via hole, then pass in the pipe inserts the drilling, the rig drives the drilling rod rotation, inside the coal drill bits by compressed air exhaust directly enters into the pipe, then fall into the drill cuttings through the pipe and collect the intracavity, after collecting, with device and drilling rod separation, the coal drill bits that collect in the drill cuttings collection chamber take out can.
The invention can collect the coal drill cuttings meeting the requirements with high quality and high efficiency, greatly reduces the probability of re-drilling and reworking, and can effectively solve the problems of high cost and long working time caused by re-drilling and reworking. The collected coal drill cuttings are sufficient in quantity, high in purity and high in collection speed, the accuracy and the quality reliability of measurement indexes can be improved, the working face of a roadway can be objectively guided to prevent coal and gas from protruding, construction safety is guaranteed, working procedure pushing can be quickened, working procedure period is shortened, completion of preventing and controlling coal and gas from protruding is promoted, working efficiency is improved, and labor cost and consumption of mechanical equipment are reduced.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a perspective view of the present invention.
FIG. 2 is a schematic diagram of a connection structure between an inner cylinder and an outer cover in the present invention.
FIG. 3 is a schematic view of the connection structure of the sealing ring plate and the outer cover in the present invention.
Fig. 4 is a front view of the present invention.
Fig. 5 is a top view of the present invention.
Fig. 6 is a cross-sectional view taken along A-A of fig. 5.
Fig. 7 is a B-B cross-sectional view of fig. 5.
In the figure: 1. the bottom plate, 2, the inner tube, 3, the dustcoat, 4, first via hole, 5, second via hole, 6, pipe, 7, correction lead screw, 8, backup pad, 9, connecting plate, 10, mounting hole, 11, lock bolt, 12, lock nut, 13, handle, 14, sealing ring board, 15, sealing rubber pad, 16, support floor.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on the embodiments of the present invention, are intended to be encompassed within the scope of the present invention.
Embodiment 1, a sealed coal drill bits collection method of vertical tunneling working face, the device that this method used includes the drill bits collector, the drill bits collector includes bottom plate 1, set up in the inner tube 2 above bottom plate 1, set up in the bottom plate 1 and lie in the outer cover 3 of inner tube 2 periphery, and set up in the inside pipe 6 of inner tube 2, the cavity between outer cover 3 and inner tube 2 is the drill bits collection chamber, set up the first via hole 4 used for passing the drilling rod at the position corresponding to opening of upper end of inner tube 2 at the top of outer cover 3, set up the second via hole 5 used for passing the drilling rod at the position corresponding to lower end of inner tube 2 on bottom plate 1, the lower end of pipe 6 extends to the bottom plate 1 below through second via hole 5, the upper end of pipe 6 communicates with drill bits collection chamber, on this basis, the method includes the following steps:
s1, inserting the lower end of a guide pipe 6 into a drill hole, enabling the bottom plate 1 to be parallel to the ground where the drill hole is located, and fixing the bottom plate 1 above the drill hole;
s2, inserting a drill rod into the outer cover 3 through the first through hole 4, and then inserting the drill rod into a drilled hole through the guide pipe 6;
s3, the drilling machine drives the drill rod to rotate, and discharged coal drill bits enter the guide pipe 6 and then fall into a drill bit collecting cavity through the guide pipe 6;
s4, after collection is completed, separating the device from the drill rod, and taking out the coal drill bits collected in the drill chip collecting cavity.
The invention can collect the coal drill cuttings meeting the requirements with high quality and high efficiency, greatly reduces the probability of re-drilling and reworking, and can effectively solve the problems of high cost and long working time caused by re-drilling and reworking. The collected coal drill cuttings are sufficient in quantity, high in purity and high in collection speed, the accuracy and the quality reliability of measurement indexes can be improved, the working face of a roadway can be objectively guided to prevent coal and gas from protruding, construction safety is guaranteed, working procedure pushing can be quickened, working procedure period is shortened, completion of preventing and controlling coal and gas from protruding is promoted, working efficiency is improved, and labor cost and consumption of mechanical equipment are reduced.
Embodiment 2, a method for collecting coal cuttings in a sealed manner on a vertical tunneling working face, is different from embodiment 1 only in that: a group of inclination correcting screw rods 7 are connected to the bottom plate 1 in a threaded manner, one end of each inclination correcting screw rod 7 is located above the bottom plate 1, and the other end of each inclination correcting screw rod extends to the lower side of the bottom plate 1, and the method comprises the following steps of:
s1, inserting the lower end of a guide pipe 6 into a drill hole, adjusting the length of each inclined lead screw 7 below the bottom plate 1, enabling the bottom plate 1 to be parallel to the ground where the drill hole is located, fixing the inclined lead screws 7 and the ground together, and fixing the bottom plate 1 above the drill hole;
s2, inserting a drill rod into the outer cover 3 through the first through hole 4, and then inserting the drill rod into a drilled hole through the guide pipe 6;
s3, the drilling machine drives the drill rod to rotate, and discharged coal drill bits enter the guide pipe 6 and then fall into a drill bit collecting cavity through the guide pipe 6;
s4, after collection is completed, separating the device from the drill rod, and taking out the coal drill bits collected in the drill chip collecting cavity.
As shown in fig. 1, 4 and 7, compared with embodiment 1, the embodiment has the advantages of accurate positioning and leveling and alignment by using the tilt calibrating screw rod 7, and has simple structure, convenient adjustment and better guarantee of the inclination of drilling construction.
Embodiment 3, a method for collecting coal cuttings in a sealed manner on a vertical tunneling working face, is different from embodiment 1 only in that: the outer cover 3 is a detachable structure formed by splicing two outer cover units symmetrically arranged along the axis of the outer cover, the inner cylinder 2 comprises an inner cylinder unit fixed inside each outer cover unit, the guide pipe 6 is in threaded connection with the inner cylinder unit, the inner cylinder 2 and the outer cover 3 are placed above the bottom plate 1 by means of the insertion connection of the guide pipe 6 and the second through hole 5, and the method comprises the following steps:
s0, splicing the two outer cover units together, connecting the upper end of the guide pipe 6 with the two inner cylinder units spliced together in a threaded manner, inserting the lower end of the guide pipe 6 into the second through hole 5 on the bottom plate 1, and placing the inner cylinder 2 and the outer cover 3 above the bottom plate 1;
s1, inserting the lower end of a guide pipe 6 into a drill hole, enabling the bottom plate 1 to be parallel to the ground where the drill hole is located, and fixing the bottom plate 1 above the drill hole;
s2, inserting a drill rod into the outer cover 3 through the first through hole 4, and then inserting the drill rod into a drilled hole through the guide pipe 6;
s3, the drilling machine drives the drill rod to rotate, and discharged coal drill bits enter the guide pipe 6 and then fall into a drill bit collecting cavity through the guide pipe 6;
s4, after collection is completed, the guide pipe 6 is detached from the inner cylinder unit, then the two outer cover units are detached, the guide pipe 6 is separated from the drill rod, and the coal drill bits collected in the drill chip collecting cavity are taken out.
As shown in fig. 1, 2, 3, 4 and 5, compared with embodiment 1, the present embodiment can rapidly take out coal cuttings located between each outer casing unit and the inner cylinder unit, and has a simple structure and more convenient operation.
Example 4, a method for collecting coal cuttings in a sealed manner on a vertical tunneling working face, differs from example 2 only in that: the outer cover 3 is a detachable structure formed by splicing two outer cover units symmetrically arranged along the axis of the outer cover, the inner cylinder 2 comprises an inner cylinder unit fixed inside each outer cover unit, the guide pipe 6 is in threaded connection with the inner cylinder unit, the inner cylinder 2 and the outer cover 3 are placed above the bottom plate 1 by means of the insertion connection of the guide pipe 6 and the second through hole 5, and the method comprises the following steps:
s0, splicing the two outer cover units together, connecting the upper end of the guide pipe 6 with the two inner cylinder units spliced together in a threaded manner, inserting the lower end of the guide pipe 6 into the second through hole 5 on the bottom plate 1, and placing the inner cylinder 2 and the outer cover 3 above the bottom plate 1;
s1, inserting the lower end of a guide pipe 6 into a drill hole, adjusting the length of each inclined lead screw 7 below the bottom plate 1, enabling the bottom plate 1 to be parallel to the ground where the drill hole is located, fixing the inclined lead screws 7 and the ground together, and fixing the bottom plate 1 above the drill hole;
s2, inserting a drill rod into the outer cover 3 through the first through hole 4, and then inserting the drill rod into a drilled hole through the guide pipe 6;
s3, the drilling machine drives the drill rod to rotate, and discharged coal drill bits enter the guide pipe 6 and then fall into a drill bit collecting cavity through the guide pipe 6;
s4, after collection is completed, the guide pipe 6 is detached from the inner cylinder unit, then the two outer cover units are detached, the guide pipe 6 is separated from the drill rod, and the coal drill bits collected in the drill chip collecting cavity are taken out.
As shown in fig. 1, 2, 3, 4 and 5, compared with embodiment 2, the present embodiment can rapidly take out coal cuttings located between each outer casing unit and the inner cylinder unit, and has a simple structure and more convenient operation.
As a further improvement of the present invention, a connecting plate 9 is fixed at both ends of each housing unit, the inner side of the lower end of the connecting plate 9 extends into the inner cylinder 2, the inner cylinder 2 is fixedly connected with the connecting plate 9, the outer end of the connecting plate 9 protrudes outside the housing units and is provided with a mounting hole 10, a locking bolt 11 and a locking nut 12 are additionally arranged, and the connecting plates 9 at the same end of the two housing units are detachably connected by means of the cooperation of the locking bolt 11 and the locking nut 12.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, the housing 3 comprises a left housing unit and a right housing unit, correspondingly, the inner cylinder 2 comprises a left inner cylinder unit and a right inner cylinder unit, the left housing unit and the inner cylinder unit are fixed together by virtue of a front connecting plate and a rear connecting plate 9, the right housing unit and the inner cylinder unit are fixed together by virtue of another front connecting plate and a rear connecting plate 9, the inner side of the upper end of the connecting plate 9 is in contact with the outer wall of the housing 3 and is fixedly connected, the lower end of the connecting plate 9 extends into the inner cylinder 2, the connecting plate 9 can be in contact with the guide pipe 6 to play a role of supporting the guide pipe 6, the left connecting plate 9 and the right connecting plate 9 which are positioned in front of the housing 3 are connected together by virtue of a locking bolt 11 and a locking nut 12, and the left connecting plate 9 and the right connecting plate 9 which are positioned behind the housing 3 are connected together by virtue of the locking bolt 11 and the locking nut 12, and the connection is firm and reliable, the dismounting is convenient and the time-saving.
As a further improvement of the invention, the device further comprises a sealing ring plate 14 connected between the lower end of the housing unit and the lower end of the inner cylinder unit. As shown in fig. 3 and 7, like this, the dustcoat unit, the inner tube unit, the sealing ring plate 14 enclose the drill cuttings collection chamber together with two connecting plates 9, and the sealed effect is better, can avoid leaking the coal drill cuttings to the bottom plate 1 because the dustcoat 3 takes place the skew in the use.
As a further improvement of the present invention, a handle 13 is fixed to the outer wall of each of the cover units. As shown in fig. 1, 4 and 5, a handle 13 is provided on the outer side of the cover unit, and is convenient to grasp when the two cover units are detached.
As a further development of the invention, a support plate 8 is provided between the conduit 6 and the inner barrel 2. As shown in fig. 2 and 7, the support plate 8 makes the connection between the catheter 6 and the inner tube 2 more firm and reliable, and can prevent the catheter 6 from deflecting. The number of support plates 8 is at least two, and all support plates 8 are uniformly arranged in the circumferential direction of the duct 6. In this way, the connection between the conduit 6 and the inner tube 2 is more balanced, and the number of the support plates 8 is preferably two in the invention, so that the number of the support plates 8 is reduced as much as possible on the premise of ensuring the reliable connection between the conduit 6 and the inner tube 2, and the cost can be saved.
As a further improvement of the invention, the inner cylinder 2 is of a conical structure, and the shape of the side plate of the outer cover 3 is matched with that of the inner cylinder 2. As shown in fig. 1, 2, 4 and 7, the tapered inner cylinder 2 is beneficial to the collected coal cuttings flowing to the periphery, so that the coal cuttings are prevented from being accumulated at one place, the side plates of the outer cover 3 are arranged to be of a tapered structure, and the whole volume of the device can be reduced as far as possible on the premise of meeting the capacity requirement.
As a further improvement of the present invention, a sealing gasket 15 is provided on the upper end face of the housing 3. As shown in fig. 1, fig. 4, fig. 5, fig. 6 and fig. 7, when in use, the sealing rubber pad 15 is in close contact with the drill rod, so that the generation of scattered splashing and dust of the coal drill cuttings at the first through hole 4 can be effectively restrained, and the occurrence probability of hurting people and deteriorating the air environment condition can be reduced.
As a further improvement of the present invention, the outer diameter of the sealing rubber pad 15 is larger than the outer diameter of the upper end face of the housing 3, and a supporting rib 16 is fixed between the lower end face of the sealing rubber pad 15 and the housing 3. As shown in fig. 1 and 4, the upper end of the supporting rib plate 16 is connected with the part of the sealing rubber pad 15 protruding outside the upper end face of the outer cover 3, the lower end of the supporting rib plate 16 is fixedly connected with the outer wall of the outer cover 3, and the connection between the sealing rubber pad 15 and the outer cover 3 is firmer and more reliable by utilizing the supporting rib plate 16.
Claims (8)
1. The utility model provides a sealed coal drill bits collection method of shaft heading face, the device that this method used includes drilling cuttings collector, its characterized in that, drilling cuttings collector includes bottom plate (1), inner tube (2) that set up above bottom plate (1), set up just be located inner tube (2) outlying dustcoat (3) above bottom plate (1), and set up in inner tube (2) inside pipe (6), cavity between dustcoat (3) and inner tube (2) is drilling cuttings collection chamber, first via hole (4) that are used for passing the drilling rod are offered in the position that top and inner tube (2) upper end opening correspond in dustcoat (3), second via hole (5) that are used for passing the drilling rod are offered in the position that corresponds with inner tube (2) lower extreme on bottom plate (1), the lower extreme of pipe (6) extends to bottom plate (1) below through second via hole (5), the upper end and the drilling cuttings collection chamber intercommunication of pipe (6), on this basis, the method includes the following steps:
s1, inserting the lower end of a guide pipe (6) into a drill hole, enabling the bottom plate (1) to be parallel to the ground where the drill hole is located, and fixing the bottom plate (1) above the drill hole;
s2, inserting a drill rod into the outer cover (3) through the first through hole (4), and then inserting the drill rod into the drilled hole through the guide pipe (6);
s3, the drilling machine drives the drill rod to rotate, and discharged coal drill bits enter the guide pipe (6) and then fall into a drill bit collecting cavity through the guide pipe (6);
s4, after the collection is completed, separating the device from the drill rod, and taking out the coal drill bits collected in the drill chip collecting cavity;
the method comprises the following steps that a group of inclination correction screws (7) are connected to a bottom plate (1) in a threaded mode, one end of each inclination correction screw (7) is located above the bottom plate (1), the other end of each inclination correction screw extends to the position below the bottom plate (1), and on the basis, step S1 is specifically that the lower end of a guide pipe (6) is inserted into a drilled hole, the length of each inclination correction screw (7) located below the bottom plate (1) is adjusted, the bottom plate (1) is parallel to the ground where the drilled hole is located, the inclination correction screws (7) are fixed with the ground, and the bottom plate (1) is fixed above the drilled hole;
the outer cover (3) is of a detachable structure formed by splicing two outer cover units symmetrically arranged along the axis of the outer cover, the inner cylinder (2) comprises inner cylinder units fixed inside each outer cover unit, the guide pipe (6) is in threaded connection with the inner cylinder units, the inner cylinder (2) and the outer cover (3) are placed above the bottom plate (1) by means of the insertion connection of the guide pipe (6) and the second through hole (5), on the basis, the method further comprises the step S0, specifically, the two outer cover units are spliced together, the upper end of the guide pipe (6) is in threaded connection with the two inner cylinder units spliced together, the lower end of the guide pipe (6) is inserted into the second through hole (5) on the bottom plate (1), and the inner cylinder (2) and the outer cover (3) are placed above the bottom plate (1);
on the basis, the separation of the device from the drill rod in the step S4 specifically means that the guide pipe (6) is firstly separated from the inner cylinder unit, then the two outer cover units are separated, and the guide pipe (6) is separated from the drill rod.
2. The method for collecting coal cuttings in a sealed manner on a vertical tunneling working face according to claim 1, wherein connecting plates (9) are fixed at two ends of each housing unit, the inner side of the lower end of each connecting plate (9) extends into the inner cylinder (2), the inner cylinder (2) is fixedly connected with each connecting plate (9), the outer end of each connecting plate (9) protrudes out of the housing unit and is provided with a mounting hole (10), a locking bolt (11) and a locking nut (12) are additionally arranged, and the connecting plates (9) at the same end of the two housing units are detachably connected by means of the matching of the locking bolts (11) and the locking nuts (12).
3. A method of sealing a face for collecting coal cuttings as claimed in claim 2 wherein the apparatus further comprises a sealing ring plate (14) connected between the lower end of the housing unit and the lower end of the inner barrel unit.
4. A method of collecting coal cuttings in a sealed manner at a face of a vertical heading according to claim 1 wherein a handle (13) is secured to the outer wall of each housing unit.
5. A method for collecting coal cuttings in a sealed manner at a face for driving a shaft according to claim 1, wherein a support plate (8) is provided between the conduit (6) and the inner cylinder (2).
6. The method for collecting coal cuttings in a sealed manner for a vertical tunneling working face according to claim 1 is characterized in that the inner cylinder (2) is of a conical structure, and the shape of a side plate of the outer cover (3) is matched with the shape of the inner cylinder (2).
7. The method for collecting coal cuttings in a sealed manner for a vertical tunneling working face according to claim 1 is characterized in that a sealing rubber pad (15) is arranged on the upper end face of the outer cover (3).
8. The method for collecting coal cuttings in a sealed manner for a vertical tunneling working face according to claim 7, wherein the outer diameter of the sealing rubber pad (15) is larger than the outer diameter of the upper end face of the outer cover (3), and a supporting rib plate (16) is fixed between the lower end face of the sealing rubber pad (15) and the outer cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211008357.5A CN115324508B (en) | 2022-08-22 | 2022-08-22 | Sealed coal drilling cutting collecting method for vertical shaft tunneling working face |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211008357.5A CN115324508B (en) | 2022-08-22 | 2022-08-22 | Sealed coal drilling cutting collecting method for vertical shaft tunneling working face |
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| Publication Number | Publication Date |
|---|---|
| CN115324508A CN115324508A (en) | 2022-11-11 |
| CN115324508B true CN115324508B (en) | 2024-03-08 |
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| CN202211008357.5A Active CN115324508B (en) | 2022-08-22 | 2022-08-22 | Sealed coal drilling cutting collecting method for vertical shaft tunneling working face |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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