CN111764896A - Coal mining device and method suitable for steeply inclined coal seam - Google Patents
Coal mining device and method suitable for steeply inclined coal seam Download PDFInfo
- Publication number
- CN111764896A CN111764896A CN202010698015.5A CN202010698015A CN111764896A CN 111764896 A CN111764896 A CN 111764896A CN 202010698015 A CN202010698015 A CN 202010698015A CN 111764896 A CN111764896 A CN 111764896A
- Authority
- CN
- China
- Prior art keywords
- coal
- rope
- traction
- coal mining
- loading
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003245 coal Substances 0.000 title claims abstract description 178
- 238000005065 mining Methods 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000005553 drilling Methods 0.000 claims abstract description 4
- 238000005520 cutting process Methods 0.000 claims description 18
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 claims description 13
- 238000003801 milling Methods 0.000 claims description 8
- 240000004282 Grewia occidentalis Species 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims 1
- 230000009194 climbing Effects 0.000 abstract description 3
- 239000007921 spray Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
- E21C29/04—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/20—General features of equipment for removal of chippings, e.g. for loading on conveyor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/22—Equipment for preventing the formation of, or for removal of, dust
-
- 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
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/06—Transport of mined material at or adjacent to the working face
- E21F13/066—Scraper chain conveyors
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a coal mining device and a method suitable for a steep coal seam, which are suitable for the steep coal seam. The coal mining device and the coal mining method suitable for the steeply inclined coal seam have good climbing capability by utilizing the method of drilling holes by the traction drill bit and drawing the coal mining machine by the traction rope, and can be suitable for the mining environment of the coal seam with large inclination angle; the shield type coal mining machine with the same size as the cross section of the coal roadway can realize one-time full-face mining, and the mining efficiency of the steeply inclined coal seam is improved.
Description
Technical Field
The invention relates to the field of coal mining machinery technology and coal mining technology, in particular to a coal mining device suitable for a steep coal seam and a coal mining method thereof.
Background
Coal is used as the most main primary energy in China, and most industrial production in China cannot be realized by coal. Coal seams in China are divided into nearly horizontal coal seams (<5 degrees), slowly inclined coal seams (5 degrees to 10 degrees), inclined coal seams (10 degrees to 45 degrees) and steeply inclined coal seams (>45 degrees) according to strike dip angles, wherein the steeply inclined coal seams account for 4 percent of coal inventory in China and account for more than 80 percent of coal inventory in mining areas in south China, and therefore the method has important significance for mining the steeply inclined coal seams to energy consumption and economic development in China.
The existing mining process of the steeply inclined coal seam still adopts a drum shearer to break coal, when the traditional drum shearer adopted in the mechanical coal mining process works on a fully mechanized coal mining working face of the coal seam with an overlarge inclination angle, because the gradient is steep, the shearer adopts a striding scraper conveyor and is driven by a matching mode of gear rack-rail meshing, the problems of serious abrasion and the like of a sliding down, a rack rail and a travelling wheel easily occur, the production safety of underground workers is seriously damaged, and the production efficiency and the benefit of the coal mine are influenced.
In summary, in view of the current mining situation of the steeply inclined coal seam in our country, it is necessary to design a device which is specially used for mining the steeply inclined coal seam and simultaneously avoids excessively damaging equipment as much as possible, so that the production safety of workers is considered, and meanwhile, efficient and low-cost mining is realized.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the prior art, the coal mining device and the method suitable for the steeply inclined coal seam are provided, and the problems that the existing drum coal mining machine is poor in climbing capability, easy to slide down and serious in equipment abrasion under the working condition of the steeply inclined coal seam are generally solved.
The technical scheme is as follows: a coal mining device suitable for a steep coal seam comprises a shield type coal mining machine, a scraper conveyor, a loading winch and a traction winch;
the scraper conveyor and the loading winch are horizontally arranged at the bottom of the coal roadway, and the traction winch is arranged at the top end of the coal roadway; the loading winch is a double-drum winch, and a loading rope of the double-drum winch consists of a main rope on the upper side and an auxiliary rope on the lower side; the shield type coal mining machine is positioned in a coal roadway, a guide wheel is arranged on a rear baffle of the shield type coal mining machine, the main rope penetrates through the guide wheel and then is connected with the auxiliary rope, a loading scraper bucket is suspended on the auxiliary rope, and the total length of the loading rope is more than two times of that of the coal roadway;
the number of the traction winches is two, one ends of two traction ropes are fixed on a front baffle of the shield type coal mining machine, and the other ends of the two traction ropes penetrate through the coal bed and are wound on the traction winches.
Furthermore, the shield type coal mining machine comprises a case positioned between the front baffle and the rear baffle, and a plurality of travelling wheels are distributed on the periphery of the case; the rear baffle covers the upper area of the rear surface of the case, the front baffle is provided with a plurality of cutter heads driven by a motor and a plurality of coal passing ports communicated with the inside of the case and directly reaching the rear surface of the case; the guide wheels are mounted on the tailgate at a distance from the top 1/3 of the chassis on a central axis.
Further, the working section of machine case is the square, the blade disc is including installing respectively the triangle blade disc of preceding baffle central point position and four corners and install the square blade disc at every limit department of square working section respectively, the cutting plane that the triangle blade disc formed is located the cutting plane outside that square blade disc formed, the cutting plane that square blade disc and triangle blade disc formed covers the cross-section of coal road.
Furthermore, the triangular cutter head comprises a triangular cutter disc frame in a regular triangle shape, connecting ribs are respectively arranged towards three corners in the center of the triangular cutter disc frame, a plurality of groups of rhombic scrapers are symmetrically arranged on the surface of each connecting rib along the direction of each connecting rib, and a triangular milling cutter is fixed in the center of the triangular cutter disc frame; the square cutter head comprises a square cutter head frame, connecting ribs are arranged towards four corners of the square cutter head frame from the center, a plurality of groups of rhombic scrapers are symmetrically arranged on the surface of each connecting rib along the direction of the corresponding connecting rib, and a four-corner milling cutter is fixed at the center of the square cutter head frame; the centers of the triangular cutter frame and the square cutter frame are respectively connected with a driving shaft of a motor; wherein the blade surface of the rhombic scraper forms an included angle of 115-135 degrees with the plane of the tool rest.
Furthermore, a circle of scraper is distributed on the outer circumference of the front end of the case, the scraper is of a triangular prism structure, and the conical edge faces the direction of the working face.
Furthermore, the device also comprises a plurality of nozzles arranged on the front baffle.
A coal mining method suitable for a steep coal seam adopts the coal mining device, and comprises the following steps:
step 1: respectively connecting a traction rope with a traction drill bit to drill in a coal roadway, completing drilling when the traction rope reaches the top of the coal roadway, and winding one end, connected with the traction drill bit, of the traction rope on a traction winch;
step 2: starting a traction winch to wind a rope, driving a shield type coal mining machine to move to the top of a coal roadway by the traction rope, and rotating a triangular cutter head and a square cutter head to break coal;
and step 3: starting a loading winch to wind a loading rope, collecting a main rope and releasing an auxiliary rope, wherein the speed of releasing the auxiliary rope is greater than the speed of collecting the main rope, and a shield type coal mining machine pulls the loading rope to pull a loading scraper bucket to a rear baffle plate through a guide wheel;
and 4, step 4: when the loading scraper bucket is pulled to the position of the rear baffle, the loading winch reversely rotates, the auxiliary rope is collected, the main rope is placed, the speed of collecting the auxiliary rope is smaller than the speed of placing the main rope, the loading scraper bucket moves to the bottom of the coal roadway under the traction of the auxiliary rope, and meanwhile, the falling coal scattered on the ramp of the coal roadway is loaded into the scraper conveyor;
and 5: and (5) repeating the steps 3 to 4 to complete the loading of the fallen coal.
Furthermore, the axial section of a front end rib plate of the traction drill bit is of a conical structure, a cutting tooth is arranged on the front end rib plate, a spiral conveying structure is arranged at the rear end of the front end rib plate, and the drill rod is of a hollow structure; one end of the traction rope is connected with a traction drill bit in advance, the other end of the traction rope is connected with a front baffle of the shield type coal mining machine, and a main body of the traction rope is arranged in a drill rod in advance.
Has the advantages that: 1. according to the coal mining device and the coal mining method suitable for the steeply inclined coal seam, the method that the hole is drilled firstly, the traction rope is placed, and the traction power is provided for the coal mining machine through the traction rope is adopted in the steeply inclined coal seam, so that the coal mining machine does not need to be provided with a power system, the machine body quality of the coal mining machine is reduced, the climbing capability is good, and the mining work can be carried out in the coal seam with a large inclination angle.
2. The coal mining device suitable for the steeply inclined coal seam provided by the invention adopts a method for mining a full section at one time, so that the mining efficiency can be improved.
Drawings
FIG. 1 is a schematic diagram of an apparatus of the present invention in its implementation;
FIG. 2 is a schematic structural view of a section of a shield type coal mining machine;
FIG. 3 is a front view of a shield shearer;
FIG. 4 is a schematic axial sectional view of a triangular cutter head;
FIG. 5 is a schematic view of a cam cutter head structure;
FIG. 6 is a schematic axial sectional view of a square cutter head;
FIG. 7 is a schematic view of a square cutter head;
wherein: 1 traction drill bit, 2 shield type coal mining machine, 2-1 chassis, 2-2 triangular cutter head, 2-2-1 triangular milling cutter, 2-2-2 rhombic scraper, 2-2-3 triangular cutter head frame, 2-2-4 triangular cutter head motor shaft, 2-3 square cutter head, 2-3-1 four corner milling cutter, 2-3-2 rhombic scraper, 2-3-3 square cutter head frame, 2-3-4 square cutter head motor shaft, 2-4 cover plate, 2-5 traveling wheel, 2-6 scraper, 2-7 guide wheel, 2-8 spray head, 2-9 front baffle, 2-10 coal passing port, 2-11 rear baffle, 3 loading rake bucket, 4 scraper conveyor, 5 loading winch and 6 loading rope, 6-1 main rope, 6-2 auxiliary ropes, 7 traction ropes, 8 traction windlasses, 9 coal beds and 10 gangue layers.
Detailed Description
The invention is further explained below with reference to the drawings.
As shown in fig. 1, a coal mining device suitable for a steep coal seam comprises a shield type coal mining machine 2, a scraper conveyor 4, a loading winch 5 and a traction winch 8. The scraper conveyor 4 and the loading winch 5 are horizontally arranged at the bottom of the coal roadway, the conveying direction of the scraper conveyor 4 is vertical to the axis of the coal roadway, the loading winch 5 is arranged behind the scraper conveyor 4, and the traction winch 8 is arranged at the top end of the coal roadway.
The loading winch 5 is a double-drum winch, and a loading rope 6 of the double-drum winch is composed of a main rope 6-1 on the upper side and an auxiliary rope 6-2 on the lower side. The shield type coal mining machine 2 is positioned in a coal roadway, guide wheels 2-7 are arranged on a rear baffle 2-11 of the shield type coal mining machine 2, a main rope 6-1 of a loading rope 6 bypasses the guide wheels 2-7 and then is connected with an auxiliary rope 6-2 to form an annular loop, and a loading scraper bucket 3 is hung on the auxiliary rope 6-2. The total length of the loading rope 6 is more than twice the total length of the coal roadway. The number of the traction winches 8 is two, one end of each of the two traction ropes 7 is fixed on a front baffle 2-9 of the shield type coal mining machine 2, and the other end of each of the two traction ropes 7 respectively penetrates through the coal seam 9 and then is wound on one traction winch 8.
As shown in fig. 2, the shield type coal mining machine 2 comprises a case 2-1 positioned between a front baffle 2-9 and a rear baffle 2-11, a plurality of traveling wheels 2-5 are distributed on the peripheral side of the case 2-1, 4 traveling wheels are a group and are evenly distributed on four surfaces on the peripheral side of the case 2-1, two groups of traveling wheels 2-5 are symmetrically distributed on each surface, and the number of the traveling wheels 2-5 arranged on the case 2-1 is 32. The walking wheels can obviously reduce the friction between the shield type coal mining machine and the wall surface of the coal roadway when the shield type coal mining machine moves in the coal roadway.
As shown in fig. 3, the working section of the chassis 2-1 of the shield type coal mining machine 2 is square, a front baffle of the shield type coal mining machine 2 is provided with a plurality of cutterheads driven by a motor, and each cutterhead comprises a triangular cutterhead 2-2 which is respectively arranged at the center position and four corners of the front baffle 2-9 and a square cutterhead 2-3 which is respectively arranged at the middle point of each edge of the square working section. The cutting plane formed by the triangular cutterhead 2-2 is positioned outside the cutting plane formed by the square cutterheads 2-3, namely the cutting plane formed by the 4 square cutterheads 2-3 is lower than the cutting plane formed by the triangular cutterheads 2-2, and the cutting plane formed by the square cutterheads 2-3 and the triangular cutterheads 2-2 covers the cross section of the coal roadway. By adopting the arrangement mode, the edge coal which is not cut by the cutterhead can be effectively mined when the shield type coal mining machine is pushed to the top of the coal roadway, so that the effective cutting area can be increased, and the cutting efficiency can be improved.
A circle of scrapers 2-6 are distributed on the outer circumference of the front end of the case 2-1, the scrapers 2-6 are in a triangular prism structure, the conical edge faces the direction of the working face, and the scrapers are fixed on the case 2-1 in a welding mode. The front baffle is also provided with a plurality of nozzles 2-8, and the nozzles 2-8 are provided with universal joint structures. The rear baffle covers the upper area of the rear surface of the case 2-1, and a plurality of coal passing ports 2-10 which are communicated with the inside of the case 2-1 and directly reach the rear surface of the case 2-1 are arranged on the front baffle 2-9. The guide wheels 2-7 are mounted on the back wall at a distance from the top 1/3 of the cabinet 2-1 on the central axis.
As shown in fig. 4 and 5, the triangular cutter head 2-2 comprises a triangular cutter head frame 2-2-3 in a regular triangle shape, connecting ribs are respectively arranged towards three corners at the center of the triangular cutter head frame 2-2-3, 3 groups of rhombic scrapers 2-2-2 are symmetrically arranged on the surface of each connecting rib along the direction of each connecting rib, and a triangular milling cutter 2-2-1 is fixed at the center of the triangular cutter head frame 2-2-3. The center of the triangular cutter disc frame 2-2-3 is connected with a triangular cutter disc motor shaft 2-2-4, and a driving motor is fixed inside the case 2-1.
As shown in fig. 6 and 7, the square cutter head 2-3 comprises a square cutter head frame 2-3-3, connecting ribs are respectively arranged at the center of the square cutter head frame 2-3-3 towards four corners, 3 groups of rhombic scrapers 2-3-2 are symmetrically arranged on the surface of the connecting ribs along the direction of the connecting ribs, and a four-corner milling cutter 2-3-1 is fixed at the center of the square cutter head frame 2-3-3. The center of the square cutter disc frame 2-3-3 is connected with a square cutter disc motor shaft 2-3-4, and the driving motor is fixed inside the case 2-1.
The rhombic scrapers 2-2-2 and 2-3-2 are made of tungsten carbide hard alloy materials, bolt holes are formed in the surfaces of the rhombic scrapers and are fixedly connected to connecting ribs of the cutter frame through bolts, and the cutter faces of the rhombic scrapers 2-2 and 2-3-2 form included angles of 115-135 degrees with the plane of the cutter frame. The cover plate 2-4 is fixedly connected to a front baffle of the case 2-1 through bolts, the cover plate 2-4 is provided with a through hole with the diameter larger than that of the motor shaft, and the motor shaft extends out of the through hole of the cover plate 2-4.
A coal mining method suitable for a steep coal seam adopts the coal mining device, and comprises the following steps:
step 1: 2 traction drill bits 1 are symmetrically arranged in a coal roadway, before coal mining operation is carried out, the traction drill bits 1 driven by a motor are respectively connected with traction ropes 7 to drill in the coal roadway, the top of the coal roadway is drilled, and then one ends of the traction ropes 7 connected with the traction drill bits 1 are detached and respectively wound on a traction winch 8. The axial section of the front end rib plate of the traction drill bit 1 is of a conical structure, a cutting tooth is arranged on the front end rib plate, a spiral conveying structure is arranged at the rear end of the front end rib plate, and a drill rod is of a hollow structure. By adopting the design, the drilled coal can be discharged, the rotation blockage is prevented, and the drilling efficiency of the drill bit is improved. One end of a traction rope 7 is connected with the traction drill bit 1 in advance, the other end of the traction rope 7 is connected with a connecting ring on a front baffle of the shield type coal mining machine 2, and a main body of the traction rope 7 is arranged in a drill rod in advance.
Step 2: the traction winch 8 is started to wind a rope, the traction rope 7 drives the shield type coal mining machine 2 to move to the top of the coal roadway, the shield type coal mining machine 2 moves from the bottom end to the upper end along the coal seam direction, the triangular cutter head 2-2 and the square cutter head 2-3 cut and break coal in a rotating mode, the working section of the shield type coal mining machine 2 is the same as the size of the section of the coal roadway, and the spray nozzles 2-8 perform spray dust removal and dust reduction. The spray heads are arranged around the cutting cutterhead, and by adopting the arrangement mode, coal dust generated in the cutting process can be effectively reduced.
And step 3: in the advancing coal mining process of the shield type coal mining machine 2, cut coal falls slide to a scraper conveyor 4 at the bottom of the coal roadway on the inclined plane of the coal roadway. The loading scraper bucket 3 is positioned at the rear side of the shield type coal mining machine 2, the loading winch 5 is started to wind the loading rope 6, the main rope 6-1 is collected, the auxiliary rope 6-2 is released, the speed of releasing the auxiliary rope 6-2 is larger than that of collecting the main rope 6-1, and the shield type coal mining machine 2 pulls the loading rope 6 through the guide wheels 2-7 to pull the loading scraper bucket 3 to a rear baffle.
And 4, step 4: when the loading scraper bucket 3 is pulled to the position of the rear baffle, the loading winch 5 rotates reversely, the auxiliary rope 6-2 is collected, the main rope 6-1 is placed, the speed of collecting the auxiliary rope 6-2 is smaller than that of placing the main rope 6-1, the loading scraper bucket 3 moves to the bottom of the coal roadway under the traction of the auxiliary rope 6-2, and meanwhile, the falling coal scattered on the ramp of the coal roadway is loaded into the scraper conveyor 4.
And 5: and (5) repeating the steps 3 to 4 to complete the loading of the fallen coal.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a coal mining device suitable for steeply inclined coal seam which characterized in that: comprises a shield type coal mining machine (2), a scraper conveyor (4), a loading winch (5) and a traction winch (8);
the scraper conveyor (4) and the loading winch (5) are horizontally arranged at the bottom of the coal roadway, and the traction winch (8) is arranged at the top end of the coal roadway; the loading winch (5) is a double-drum winch, and a loading rope (6) of the double-drum winch consists of a main rope (6-1) on the upper side and an auxiliary rope (6-2) on the lower side; the shield type coal mining machine (2) is positioned in a coal roadway, a guide wheel (2-7) is arranged on a rear baffle of the shield type coal mining machine (2), the main rope (6-1) penetrates through the guide wheel (2-7) and then is connected with the auxiliary rope (6-2), a loading scraper bucket (3) is suspended on the auxiliary rope (6-2), and the total length of the loading rope (6) is more than twice of the total length of the coal roadway;
the number of the traction winches (8) is two, one ends of two traction ropes (7) are fixed on a front baffle of the shield type coal mining machine (2), and the other ends of the two traction ropes (7) penetrate through the coal seam (9) and then are wound on the traction winches (8).
2. The coal mining device suitable for the steeply inclined coal seam according to claim 1, characterized in that: the shield type coal mining machine (2) comprises a case (2-1) positioned between the front baffle and the rear baffle, and a plurality of traveling wheels (2-5) are distributed on the periphery of the case (2-1); the rear baffle covers the upper region of the rear surface of the case (2-1), the front baffle is provided with a plurality of cutter heads driven by a motor and a plurality of coal passing ports communicated with the inside of the case (2-1) and directly reaching the rear surface of the case (2-1); the guide wheels (2-7) are arranged on the central axis of the rear baffle at a distance from the top 1/3 of the case (2-1).
3. The coal mining device suitable for the steeply inclined coal seam according to claim 2, characterized in that: the working section of machine case (2-1) is the square, the blade disc is including installing respectively preceding baffle central point puts triangle blade disc (2-2) and the square blade disc (2-3) of installing respectively in square working section's every limit department, the cutting plane that triangle blade disc (2-2) formed is located the cutting plane outside that square blade disc (2-3) formed, the cutting plane that square blade disc (2-3) and triangle blade disc (2-2) formed covers the cross-section of coal road.
4. The coal mining device suitable for the steeply inclined coal seam of claim 3, wherein: the triangular cutter head (2-2) comprises a triangular cutter head frame (2-2-3) in a regular triangle shape, connecting ribs are respectively arranged towards three corners in the center of the triangular cutter head frame (2-2-3), a plurality of groups of rhombic scrapers (2-2-2) are symmetrically arranged on the surface of each connecting rib along the direction of each connecting rib, and a triangular milling cutter (2-2-1) is fixed in the center of the triangular cutter head frame (2-2-3); the square cutter head (2-3) comprises a square cutter disc frame (2-3-3), connecting ribs are arranged at the center of the square cutter disc frame (2-3-3) towards four corners respectively, a plurality of groups of rhombic scrapers (2-3-2) are symmetrically arranged on the surface of each connecting rib along the direction of the connecting rib, and a four-corner milling cutter (2-3-1) is fixed at the center of the square cutter disc frame (2-3-3); the centers of the triangular cutter disc frame (2-2-3) and the square cutter disc frame (2-3-3) are respectively connected with a driving shaft of a motor; wherein, the blade surface of the rhombic scraper (2-2-2, 2-3-2) forms an included angle of 115 degrees to 135 degrees with the plane of the cutter rest.
5. The coal mining device suitable for the steep coal seam according to any one of claims 2 to 4, wherein: the outer circumference of the front end of the case (2-1) is provided with a circle of scrapers (2-6), the scrapers (2-6) are in a triangular prism structure, and the conical edge faces the direction of a working face.
6. The coal mining device suitable for the steep coal seam according to any one of claims 1 to 4, wherein: also comprises a plurality of nozzles (2-8) arranged on the front baffle.
7. A coal mining method suitable for a steep coal seam is characterized by comprising the following steps: the coal mining apparatus of any of claims 1-6, the coal mining method including the steps of:
step 1: a traction drill bit (1) is respectively connected with a traction rope (7) to drill in a coal roadway, the coal roadway reaches the top of the coal roadway to finish drilling, and then one end of the traction rope (7) connected with the traction drill bit (1) is wound on a traction winch (8);
step 2: starting a traction winch (8) to wind a rope, driving a shield type coal mining machine (2) to move to the top of a coal roadway by a traction rope (7), and rotating a triangular cutter head (2-2) and a square cutter head (2-3) to break coal;
and step 3: starting a loading winch (5) to wind a loading rope (6), winding a main rope (6-1), unwinding an auxiliary rope (6-2), wherein the speed of unwinding the auxiliary rope (6-2) is higher than that of winding the main rope (6-1), and a shield type coal mining machine (2) pulls the loading rope (6) through a guide wheel (2-7) to pull a loading scraper bucket (3) to a rear baffle;
and 4, step 4: when the loading scraper bucket (3) is pulled to the position of a rear baffle, the loading winch (5) rotates reversely, the auxiliary rope (6-2) is collected, the main rope (6-1) is placed, the speed of the auxiliary rope (6-2) is smaller than that of the main rope (6-1), the loading scraper bucket (3) moves towards the bottom of the coal roadway under the traction of the auxiliary rope (6-2), and meanwhile, the falling coal scattered on the coal roadway ramp is loaded into the scraper conveyor (4);
and 5: and (5) repeating the steps 3 to 4 to complete the loading of the fallen coal.
8. A coal mining method suitable for a steeply dipping coal seam according to claim 7, characterized by comprising the following steps: the axial section of a front end rib plate of the traction drill bit (1) is of a conical structure, a cutting tooth is arranged on the front end rib plate, a spiral conveying structure is arranged at the rear end of the front end rib plate, and a drill rod is of a hollow structure; one end of a traction rope (7) is connected with the traction drill bit (1) in advance, the other end of the traction rope (7) is connected with a front baffle of the shield type coal mining machine (2), and a main body of the traction rope (7) is arranged in a drill rod in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010698015.5A CN111764896B (en) | 2020-07-20 | 2020-07-20 | Coal mining device and method suitable for steeply inclined coal seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010698015.5A CN111764896B (en) | 2020-07-20 | 2020-07-20 | Coal mining device and method suitable for steeply inclined coal seam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111764896A true CN111764896A (en) | 2020-10-13 |
| CN111764896B CN111764896B (en) | 2021-11-26 |
Family
ID=72728622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010698015.5A Active CN111764896B (en) | 2020-07-20 | 2020-07-20 | Coal mining device and method suitable for steeply inclined coal seam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111764896B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1173243A (en) * | 1967-01-23 | 1969-12-03 | Eickhoff Geb | Improvements in or relating to Mining Machines |
| DE19527407C1 (en) * | 1995-05-26 | 1996-08-29 | Bochumer Eisen Heintzmann | Continuous mining machine from seam |
| CN102305085A (en) * | 2011-09-23 | 2012-01-04 | 上海城建（集团）公司 | Special section cutting device of full-section development machine |
| CN202417496U (en) * | 2012-01-03 | 2012-09-05 | 马学付 | Pseudo-downhill skew mining ploughing and conveying self-advancing coal mining machine for high-dipping coal seam |
| CN202690049U (en) * | 2012-07-24 | 2013-01-23 | 黑龙江省钰熙机械制造有限公司 | Overhand mining and external haulage planing and transporting machine for steep coal seams |
| CN103742148A (en) * | 2014-01-14 | 2014-04-23 | 山东科技大学 | Gangue-filling coal mining method for sharp inclined coal seam under flexible shield support |
| CN105114082A (en) * | 2015-07-31 | 2015-12-02 | 河南理工大学 | Experimental apparatus capable of excavating tunnels with various sectional shapes |
| CN105257291A (en) * | 2015-11-02 | 2016-01-20 | 王洁 | Steep coal-seam coal mining and transportation apparatus and coal mining and transportation method |
| CN105649627A (en) * | 2016-01-07 | 2016-06-08 | 山东科技大学 | Coal mining method for steeply inclined single thin coal seam |
| CN208122848U (en) * | 2018-04-25 | 2018-11-20 | 湖南科技大学 | A kind of half-edge coal seam mechanical coal mining device based on the horizontal coal plough of chain haulage |
| CN208468794U (en) * | 2018-06-26 | 2019-02-05 | 南京欧立挤出机械有限公司 | A kind of pelletizing cutterhead group device of double screw extruder |
| CN210317320U (en) * | 2019-07-04 | 2020-04-14 | 中铁工程服务有限公司 | TBM blade disc of variable footpath excavation |
-
2020
- 2020-07-20 CN CN202010698015.5A patent/CN111764896B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1173243A (en) * | 1967-01-23 | 1969-12-03 | Eickhoff Geb | Improvements in or relating to Mining Machines |
| DE19527407C1 (en) * | 1995-05-26 | 1996-08-29 | Bochumer Eisen Heintzmann | Continuous mining machine from seam |
| CN102305085A (en) * | 2011-09-23 | 2012-01-04 | 上海城建（集团）公司 | Special section cutting device of full-section development machine |
| CN202417496U (en) * | 2012-01-03 | 2012-09-05 | 马学付 | Pseudo-downhill skew mining ploughing and conveying self-advancing coal mining machine for high-dipping coal seam |
| CN202690049U (en) * | 2012-07-24 | 2013-01-23 | 黑龙江省钰熙机械制造有限公司 | Overhand mining and external haulage planing and transporting machine for steep coal seams |
| CN103742148A (en) * | 2014-01-14 | 2014-04-23 | 山东科技大学 | Gangue-filling coal mining method for sharp inclined coal seam under flexible shield support |
| CN105114082A (en) * | 2015-07-31 | 2015-12-02 | 河南理工大学 | Experimental apparatus capable of excavating tunnels with various sectional shapes |
| CN105257291A (en) * | 2015-11-02 | 2016-01-20 | 王洁 | Steep coal-seam coal mining and transportation apparatus and coal mining and transportation method |
| CN105649627A (en) * | 2016-01-07 | 2016-06-08 | 山东科技大学 | Coal mining method for steeply inclined single thin coal seam |
| CN208122848U (en) * | 2018-04-25 | 2018-11-20 | 湖南科技大学 | A kind of half-edge coal seam mechanical coal mining device based on the horizontal coal plough of chain haulage |
| CN208468794U (en) * | 2018-06-26 | 2019-02-05 | 南京欧立挤出机械有限公司 | A kind of pelletizing cutterhead group device of double screw extruder |
| CN210317320U (en) * | 2019-07-04 | 2020-04-14 | 中铁工程服务有限公司 | TBM blade disc of variable footpath excavation |
Non-Patent Citations (2)
| Title |
|---|
| 卜滕滕等: "急倾斜单一薄煤层"两段三平巷"式采煤方法研究", 《煤炭技术》 * |
| 王汉兴: "煤及煤岩巷道掘进及倾斜巷道掘进特点", 《黑龙江科技信息》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111764896B (en) | 2021-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102155219B (en) | Comprehensive dredging machine | |
| US3379264A (en) | Earth boring machine | |
| CN109630126B (en) | Sinking method rotary shaft heading machine | |
| WO2015127808A1 (en) | Center-pillared full-face shaft drilling machine | |
| CN108756913A (en) | A kind of small-sized mining hard rock shield excavation machine | |
| CN109931066B (en) | Strip mine side wall mining system | |
| CN110805444B (en) | Shaft cutter head system and shaft heading machine with same | |
| CN210003212U (en) | underwater drilling tool attitude detection system | |
| CN102733815B (en) | Full-face rectangular hard rock tunneling and anchoring integrated machine | |
| CN203822317U (en) | Cutting device for stone drifting machine | |
| CN102926748A (en) | Double-cutterhead double-transverse-cylinder full-face tunneller | |
| CN103850685A (en) | Heading machine applicable to drill vertical well through pioneer well | |
| CN208619109U (en) | A kind of small-sized mining hard rock shield excavation machine | |
| EP0192357B1 (en) | Mining machinery | |
| CN212359762U (en) | High-speed intelligent shield constructs machine | |
| CN106545345A (en) | Advanced rig fast embarkation device | |
| CN111764896B (en) | Coal mining device and method suitable for steeply inclined coal seam | |
| CN202645578U (en) | Full-section rectangular hard-rock heading and anchoring integrated machine | |
| CN211342922U (en) | High-pressure water jet side cutter and hydraulic-mechanical combined rock breaking and trapped-escaping TBM cutter head | |
| CN102704928A (en) | Rotatable retractable cutting device for comprehensive mechanized stone head tunneling machine set | |
| CN116971781A (en) | Vertical shaft heading machine applied to composite stratum | |
| CN201802398U (en) | Hard rock boring machine | |
| CN207813621U (en) | Hard rock tunnel development machine | |
| CN111058852A (en) | High-speed intelligent shield constructs machine | |
| CN206409238U (en) | A kind of hard rock driving assembled cutter head and its new hard rock tunnel development machine of preparation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |