CN102392640B - Close-range thin coal layer simultaneous mining and parallel transporting method - Google Patents
Close-range thin coal layer simultaneous mining and parallel transporting method Download PDFInfo
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- CN102392640B CN102392640B CN 201110175451 CN201110175451A CN102392640B CN 102392640 B CN102392640 B CN 102392640B CN 201110175451 CN201110175451 CN 201110175451 CN 201110175451 A CN201110175451 A CN 201110175451A CN 102392640 B CN102392640 B CN 102392640B
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Abstract
The invention discloses a close-range thin coal layer simultaneous mining and parallel transporting method, aiming to solve the problems caused by layer mining of the existing close-range thin coal layers, such as resource waste, serious flood, difficult mining distribution of lower layer coal, long mining period, low yield, high tunneling and supporting difficulties, high cost and the like. The method is characterized by arranging a centralized transport roadway, a centralized track roadway and a centralized air return roadway along the coal layers or top and bottom plates of the coal layers, simultaneously arranging two coal faces on the close-range thin coal layers and simultaneously mining and transporting coal. The method has the following beneficial effects: simultaneous mining and centralized transporting of the upper and lower coal layers are realized; relative to layer mining, by adopting the method, the tunneling quantities of the roadways are reduced, a belt conveyer can be simultaneously omitted, and the convenience is provided for centralized management of production; and especially for the close-range thin coal layers, the production system is simplified, the convenience is provided for centralized management, the production cost is lowered, and the mine output and the production efficiency are improved.
Description
Technical field
The present invention relates to the closely same also transportation method of adopting of girdle.
Background technology
At present, closely girdle is interlamellar spacing less than the coal seam of 8 meters, its stoping method is mainly the descending slicing exploitation, be after day-coal has all been adopted, adopt again lower floor's coal until top board after falling to stablizing, the defective of this exploitation method is: after day-coal has been adopted, due to long goaf ponding, cause serious flood for the exploitation of lower floor's coal; Stay the various coal columns of establishing in the day-coal exploitation process, cause the stress of regional area to concentrate for the top board of lower floor's coal, the development work of lower floor's coal must be avoided area of stress concentration, bring the adverse influence factor for the layout in tunnel, in order to avoid area of stress concentration, often adopt to stay and establish wider coal column, cause the huge waste of resource; The top board that is also lower floor's coal to its base plate in the day-coal exploitation process causes certain destruction, and the supporting in lower floor's coal road road must be adopted canopy, net combined supporting, the shortcoming such as its labour intensity is large, drivage efficiency is low.
Summary of the invention
The invention provides closely girdle with adopting and transportation method, the wasting of resources, the flood that overcomes existing closely girdle separate zone production is serious, the problems such as the supporting difficulty is large, expense is high are grown, yielded poorly, tunnel to lower floor's coal mining layout difficulty, exploitation cycle.
Technical scheme of the present invention is: along the coal seam or its roof and floor arrange three concentrated lanes, namely collective conveyance lane 1, concentrate track lane 2, centralized return air system lane 3, as main transportation, ventilation and the pedestrian in exploiting field;
The position driving of pressing Mining block design in the lower floor coal seam connects collective conveyance lane 1, concentrate track lane 2, the lower floor parking lot in centralized return air system lane 3; The lower haulage gate 13 of driving and lower railway crossheading 5, the end that lower haulage gate 13 is connected with the lower railway crossheading is connected with the lower floor parking lot, at the other end driving incision eye 10 of lower haulage gate 13 and lower railway crossheading 5, haulage gate 13 and lower railway crossheading 5 under connection; Form the preliminary production system of lower floor's coal work plane;
The position driving of pressing Mining block design in the coal seam, upper strata connects collective conveyance lane 1, concentrate track lane 2, the parking lot, upper strata in centralized return air system lane 3; Haulage gate 14, the crossheading 6 that gets on the right track on driving, an end of upper haulage gate 14, the crossheading 6 that gets on the right track is connected with the parking lot, upper strata; Cut eye 9 on the other end driving of upper haulage gate 14, the crossheading 6 that gets on the right track, haulage gate 14 and the crossheading 6 that gets on the right track in connection; Form the preliminary production system of day-coal work plane;
The special-purpose drawing-off gas of the position driving lane 4 of pressing Mining block design in the coal seam, upper strata is connected with centralized return air system lane 3, passes to incision eye 10 upright positions; Cut the junction driving connection roadway 8 of eye 9 and the crossheading 6 that gets on the right track on day-coal, cut eye 9 and special-purpose drawing-off gas lane 4 in connection; At lower floor's coal incision eye 10 driving up and down, junction connection roadway 7 with lower railway crossheading 5, connect incision eye 10 and special-purpose drawing-off gas lane 4;
Be provided with connection roadway 8 in the coal seam, upper strata, connect get on the right track crossheading 6 and special-purpose drawing-off gas lane 4; Be provided with up and down connection roadway 7 in the lower floor coal seam, connect lower railway crossheading 5 and special-purpose drawing-off gas lane 4;
13 of upper haulage gate 14 and lower haulage gates, excavate up and down haulage gate connection roadway 12, milling coal hole 11, haulage gate 14 is communicated with lower haulage gate 13.
At upper eye 9 interior layout upper strata hydraulic supports 19, upper strata drag conveyor 28 and the upper strata coal-winning machine 32 cut; At top elevating conveyor 29 and two belt conveyers 30 of cutting eye 9 end installing epipelagic zone crushing functions of upper strata haulage gate 14; Installing milling coal hole elevating conveyor 31 in the connection roadway of haulage gate up and down 12 of two belt conveyer 30 ends; Get on the right track crossheading 6 and upper haulage gate 14 with on cut eye 9 installing upper strata advance support pillar 18 in the scope of 20 meters;
At the interior layout of incision eye 10 lower floor hydraulic support 23, lower floor's drag conveyor 128 and lower floor's coal-winning machine 132; Cut on the lower eye 10 end installing lower floor's band crushing function elevating conveyor 129 and lower belt conveyers 130 at lower haulage gate 13; The concentrated belt conveyer overlap joint of installing in lower floor's belt conveyer 130 and collective conveyance lane 1; At lower railway crossheading 5 and lower haulage gate 13 and scope in-built the set layer advance support pillar 21 of incision eye 10 at a distance of 20 meters;
The postpone of installations and facilities cloth, implement according to the following steps to mine:
1) day-coal working face mining: mine along the direction that the upper strata direction of propulsion 17 with upper work plane 33 forms the oblique angle at the upper end of upper haulage gate 14 side work planes with upper strata coal-winning machine 32, namely adopt the feed of cutting sth. askew, when reaching 0.6 meter, the front and back of upper strata coal-winning machine 32 cylinder depth of cut retreats again reverse coal cutting, adopt the oblique angle coal, then pass upper strata drag conveyor 28 and upper strata hydraulic support 19, make upper strata drag conveyor 28 move into on cut eye 9 parallel directions, upper strata coal-winning machine 32 continues the coal cutting of advancing of upward trajectory crossheading 6 directions, and advancing with upper strata coal-winning machine 32, follow upper strata coal-winning machine 32 at upper work plane 33 by upper strata direction of propulsion 17 and move upper strata hydraulic support 19 and upper strata drag conveyor 28, until upper work plane 33 is near the lower end of crossheading 6 sides that get on the right track.Then exploit to the upper end near upper haulage gate 14 sides near the lower end of crossheading 6 sides that get on the right track from upper work plane 33 with same method, complete an exploitation of an i.e. cycle operation back and forth, upper work plane 33 advances 1.2 meters along upper strata direction of propulsion 17;
2) advance along upper strata direction of propulsion 17 when work plane 33 after 1.2 meters, beginning is moved upper strata advance support pillar 18 in epipelagic zone crushing function elevating conveyor 29 in upper haulage gate 14 and upper haulage gate 14, the crossheading 6 that gets on the right track along upper strata direction of propulsion 17,1.2 meters of displacements, stop the exploitation of upper work plane 33 after having moved, change the exploitation of lower work plane 34 over to;
3) exploitation of lower floor's coal work plane: mine along the direction that the lower floor's direction of propulsion 22 with lower work plane 34 forms the oblique angle at the upper end near lower haulage gate 13 side work planes 34 with lower floor's coal-winning machine 132, namely adopt the feed of cutting sth. askew, when reaching 0.6 meter, the front and back of lower floor's coal-winning machine 132 cylinder depth of cut retreats again reverse coal cutting, adopt the oblique angle coal, then pass lower floor's coal drag conveyor 128 and lower floor's hydraulic support 23, make lower floor's drag conveyor 128 move into the direction parallel with incision eye 10, lower floor's coal-winning machine 132 continues to the coal cutting of advancing of lower railway crossheading 5 directions, and advancing with lower floor's coal-winning machine 132, follow lower floor's coal-winning machine 132 at lower work plane 34 by lower floor's direction of propulsion 22 and move lower floor's hydraulic support 23 and lower floor's drag conveyor 128, until lower work plane 34 is near the lower end of lower railway crossheading 5 sides.Then exploit to the upper end near lower haulage gate 13 sides near the lower end of lower railway crossheading 5 sides from lower work plane 34 with same method, complete an exploitation of an i.e. cycle operation back and forth, upper work plane 34 advances 1.2 meters along lower floor's direction of propulsion 22;
4) instantly making face 34 advances after 1.2 meters along lower floor's direction of propulsion 22, beginning is moved lower floor in lower haulage gate 13 with the lower floor's advance support pillar 21 in crushing function elevating conveyor 129 and lower haulage gate 13, lower railway crossheading 5 along lower floor's direction of propulsion 22,1.2 meters of displacements, stop the exploitation of lower work plane 34 after having moved, change the exploitation of work plane 33 over to;
5) repeat above-mentioned 1), 2) and 3), 4) step, make up and down work plane alternating recovery, until upper work plane 33 and lower work plane 34 are when advancing 18 meters along upper strata direction of propulsion 17 or lower floor's direction of propulsion 22 respectively, this at present work plane 34 avoided 33 pairs of upper work planes and cut the stress of gugen kohle post and concentrate, carry out following normal production stage;
The upper strata coal-winning machine 32 of upper work plane 33 and lower floor's coal-winning machine of lower work plane 34 132 front and back keep the mistake of 6 meters apart from back production simultaneously continuously, until upper work plane and lower working face extraction are complete.
Described while back production refers to no longer alternating recovery of work plane and lower work plane, and upper work plane and lower work plane can carry out back production simultaneously, and upper work plane or the stoping method of lower work plane and the movement of equipment are the same with the prior art face back production that works independently.Along with the propelling of upper work plane and lower work plane, upper work plane goaf top plate 20 will produce across falling, namely with whole caving method management top boards with lower work plane goaf top plate 24.
Described and fortune, the transportation that refers to lower floor's coal is carried out routinely, to be the coal cut off of lower floor's coal-winning machine 132 be transported to lower floor by lower floor's drag conveyor 128 of lower work plane 34 reprints to lower floor's belt conveyer 130 with the elevating conveyor 129 of crushing function, coal is transported to collective conveyance lane 1, then transports ground to; The means of transportation of day-coal is that the coal that the upper strata coal-winning machine 32 of upper work plane 33 is cut off is reprinted to two leather belt reshipment machines 30 by the elevating conveyor 29 that upper strata drag conveyor 28 is transported to the epipelagic zone crushing function, reprinted by two leather belt reshipment machines 30 again and to milling coal hole elevating conveyor 31, coal is slipped to lower floor's belt conveyer 130, coal is transported to collective conveyance lane 1, transport again ground to, realize the also fortune of up and down coal.
The invention has the beneficial effects as follows: realize the back production simultaneously of coal seam, up and down, collective conveyance, with respect to separate zone production, not only reduced the excavation work amount in tunnel, can also reduce by a belt conveyer simultaneously, centralized management is convenient in production, especially to in-plant girdle, simplify production system, be convenient to centralized management, reduce cost of production, improved mine output and production efficiency.
Description of drawings
Fig. 1 is the floor map that initialization face roadway is arranged.
Fig. 2 is the A--A generalized section of Fig. 1.
Fig. 3 is the relevant parameter of the embodiment of the present invention 1 initialization face roadway plane of arrangement figure.
Fig. 4 is the B--B generalized section of Fig. 3.
Fig. 5 is stope original equipment plane of arrangement schematic diagram.
Fig. 6 is apparatus arrangement floor map in the working face extraction process.
Fig. 7 is the face-airing system schematic.
Fig. 8 is work plane fortune coal measures system schematic diagram.
Fig. 9 is work plane Stady On The Auxiliary Transportation Systems schematic diagram.
Figure 10 is the transshipment system schematic of the embodiment of the present invention 1 upper strata work plane coal.
The specific embodiment
As depicted in figs. 1 and 2:
According to design department design along the coal seam or its roof and floor arrange three concentrated lanes, namely collective conveyance lane 1, concentrate track lane 2, centralized return air system lane 3, as main transportation, ventilation and the pedestrian in exploiting field;
Haulage gate 13 under the driving of lower floor coal seam connects collective conveyance lane 1, concentrates track lane 2 and incision eye 10; At lower floor coal seam driving lower railway crossheading 5, connect and concentrate track lane 2, centralized return air system lane 3 and incision eye 10;
Haulage gate 14 on coal seam, upper strata driving, connect concentrate track lane 2, with on cut eye 9; At coal seam, the upper strata driving crossheading 6 that gets on the right track, connect concentrate track lane 2, on cut eye 9; In the special-purpose drawing-off gas of coal seam, upper strata driving lane 4, connect centralized return air system lane 3, pass to incision eye 10 upright positions, be communicated with incision eye 10 by up and down connection roadway 7;
Be provided with connection roadway 8 in the coal seam, upper strata, connect get on the right track crossheading 6 and special-purpose drawing-off gas lane 4; Be provided with up and down connection roadway 7 between the levels coal seam, connect lower railway crossheading 5 and special-purpose drawing-off gas lane 4;
Excavation up and down haulage gate connection roadway 12, milling coal hole 11 make haulage gate 14 be communicated with 13 of lower haulage gates.
As shown in Figure 3 and Figure 4:
The length L 1 of upper work plane 33 is 80～150 meters, and span length is 4 meters, and the length L 2 of lower work plane 34 is L1+8+2 * 4 (rice).
On cut eye 9 and the width L5 of incision eye 10 is 6 meters, on cut eye and incision eye mistake be 6 meters apart from L6.
What get on the right track crossheading 5 and lower railway crossheading 6 is 4 meters apart from m, and upper haulage gate 14 is 4 meters with lower haulage gate 13 apart from m.
In lower haulage gate 13 and upper haulage gate 14, be 50 meters every L4 a glance milling coal hole 11 is set, as the transportation of day-coal.
As shown in Figure 5 and Figure 6:
At upper eye 9 interior layout upper strata hydraulic supports 19, upper strata drag conveyor 28 and the upper strata coal-winning machine 32 cut; Install elevating conveyor 29 and two belt conveyers 30 of epipelagic zone crushing functions by cutting eye 9 ends on cutting at upper haulage gate 14; Installing milling coal hole elevating conveyor 31 in the connection roadway of haulage gate up and down 12 of two belt conveyer 30 ends; Get on the right track crossheading 6 and upper haulage gate 14 with on cut eye 9 installing upper strata advance support pillar 18 in the scope of 20 meters;
At the interior layout of incision eye 10 lower floor hydraulic support 23, lower floor's drag conveyor 128 and lower floor's coal-winning machine 132; Cut on the lower eye 10 end installing lower floor's band crushing function elevating conveyor 129 and lower belt conveyers 130 at lower haulage gate 13; The concentrated belt conveyer overlap joint of installing in lower floor's belt conveyer 130 and collective conveyance lane 1; At lower railway crossheading 5 and lower haulage gate 13 and scope in-built the set layer advance support pillar 21 of incision eye 10 at a distance of 20 meters;
As shown in Figure 7, the present invention adopts two to advance the ventilation system of three times:
Fresh distinguished and admirable 25 flow direction: collective conveyance lane 1 → upper haulage gate 14 → upper work plane 33; Concentrated track lane 2 → lower haulage gate 13 → lower work plane 34.
Dirty distinguished and admirable 26 flow direction: the upper work plane 33 → crossheading 6 → connection roadway 8 that gets on the right track → 4 → centralized return air system lane, special-purpose drawing-off gas lane 3; Lower work plane 34 → lower railway crossheading 5 → up and down connection roadway 7 → 4 → centralized return air system lane, special-purpose drawing-off gas lane 3.
Figure 8 shows that Stady On The Auxiliary Transportation Systems, the means of transportation of material 35 is: from the collective conveyance lane 2 → crossheading 6 that gets on the right track → upper work plane 33; From collective conveyance lane 2 → lower railway crossheading, 5 → lower work plane 34.
Figure 9 shows that the fortune coal measures system of work plane:
Upper work plane 33: work plane coal 27 pushes 1 → ground, 29 → two belt conveyer 30 → milling coal hole elevating conveyor 31 → lower floor large lanes of coal belt conveyer 130 → collective conveyance of plate conveyer 28 → epipelagic zone crushing function elevating conveyor from the upper strata.
Lower work plane 34: work plane coal 27 pushes plate conveyer 128 → lower floor with the 1 → ground, the elevating conveyor large lane of 129 → lower floor belt conveyer 130 → collective conveyance of crushing function from lower floor.
Figure 10 is the arrangement diagram of the embodiment of the present invention 1 day-coal haulage device, its concrete grammar is: the coal of upper strata drag conveyor 28 slips to epipelagic zone crushing function elevating conveyor 29, wherein the length R of the reprinting length of epipelagic zone crushing function elevating conveyor 29 and two belt conveyers 30 is 50 meters, so that and the distance of 11 of two belt conveyers 30 of 50 meters long of its anterior overlap joint and milling coal holes is supporting, epipelagic zone crushing function elevating conveyor 29 progressively moves forward with the propelling of work plane, when being advanced to 50 meters, make two leather belt reshipment machines 30 and milling coal hole elevating conveyor 31 pass forward 50 meters, reciprocal therewith, until working face extraction is complete.
Claims (2)
- Closely girdle with adopting and transportation method, along the coal seam or its roof and floor arrange three concentrated lanes, namely collective conveyance lane (1), concentrate track lane (2), centralized return air system lane (3), it is characterized in that:The lower floor parking lot that connects collective conveyance lane (1), concentrated track lane (2), centralized return air system lane (3) at lower floor's coal seam driving; The lower haulage gate (13) of driving and lower railway crossheading (5), lower haulage gate (13) is connected 5 with the lower railway crossheading) an end be connected with the lower floor parking lot, other end driving incision eye (10) at lower haulage gate (13) and lower railway crossheading (5) is communicated with lower haulage gate (13) and lower railway crossheading (5); Form the preliminary production system of lower floor's coal work plane;The parking lot, upper strata that connects collective conveyance lane (1), concentrated track lane (2), centralized return air system lane (3) at coal seam, upper strata driving; Haulage gate on driving (14), the crossheading that gets on the right track (6), an end of upper haulage gate (14), the crossheading that gets on the right track (6) is connected with the parking lot, upper strata; Cut eye (9), haulage gate in connection (14) and the crossheading that gets on the right track (6) on the other end driving of upper haulage gate (14), the crossheading that gets on the right track (6); Form the preliminary production system of day-coal work plane;Be connected with centralized return air system lane (3) in coal seam, upper strata driving special-purpose drawing-off gas lane (4), pass to incision eye (10) upright position; Cut eye (9) and tunnel connection roadway (8) with the junction of the crossheading (6) that gets on the right track on day-coal, cut eye (9) and special-purpose drawing-off gas lane (4) in connection; At the junction driving up and down connection roadway (7) of lower floor's coal incision eye (10) with lower railway crossheading (5), connect incision eye (10) and special-purpose drawing-off gas lane (4);Be provided with connection roadway (8) in the coal seam, upper strata, connect get on the right track crossheading (6) and special-purpose drawing-off gas lane (4); Be provided with up and down connection roadway (7) in the lower floor coal seam, connect lower railway crossheading (5) and special-purpose drawing-off gas lane (4);Between upper haulage gate (14) and lower haulage gate (13), excavate up and down haulage gate connection roadway (12), milling coal hole (11);Arrange upper strata hydraulic support (19), upper strata drag conveyor (28) and upper strata coal-winning machine (32) in eye (9) upper cutting; At top elevating conveyor (29) and two belt conveyers (30) of cutting eye (9) end installing epipelagic zone crushing function of upper haulage gate (14); Installing milling coal hole elevating conveyor (31) in the connection roadway of haulage gate up and down (12) of two belt conveyers (30) end; The crossheading that gets on the right track (6) and upper haulage gate (14) with on cut eye (9) install upper strata advance support pillar (18) in the scope of 20 meters;Arrange lower floor's hydraulic support (23), lower floor's drag conveyor (128) and lower floor's coal-winning machine (132) in incision eye (10); Cut on the lower eye (10) end installing lower floor's band crushing function elevating conveyor (129) and lower floor's belt conveyer (130) at lower haulage gate (13); The concentrated belt conveyer overlap joint of installing in lower floor's belt conveyer (130) and collective conveyance lane (1); At lower railway crossheading (5) and lower haulage gate (13) and scope in-built the set layer advance support pillar (21) of incision eye (10) at a distance of 20 meters;The postpone of installations and facilities cloth, implement according to the following steps to mine:1) day-coal working face mining: mine along the direction that the upper strata direction of propulsion (17) with upper work plane (33) forms the oblique angle at the upper end of upper haulage gate (14) side work plane with upper strata coal-winning machine (32), namely adopt the feed of cutting sth. askew, when reaching 0.6 meter, the front and back of upper strata coal-winning machine (32) cylinder depth of cut retreats again reverse coal cutting, adopt the oblique angle coal, then pass upper strata drag conveyor (28) and upper strata hydraulic support (19), make upper strata drag conveyor (28) move into on cut the parallel direction of eye (9), upper strata coal-winning machine (32) continues the coal cutting of advancing of upward trajectory crossheading (6) direction, and advancing with upper strata coal-winning machine (32), follow upper strata coal-winning machine (32) mobile upper strata hydraulic support (19) and upper strata drag conveyor (28) at upper work plane (33) by upper strata direction of propulsion (17), until upper work plane (33) is near the lower end of crossheading (6) side that gets on the right track, then exploit to the upper end near upper haulage gate (14) side near the lower end of crossheading (6) side that gets on the right track from upper work plane (33) with same method, complete an exploitation of an i.e. cycle operation back and forth, upper work plane (33) advances 1.2 meters along upper strata direction of propulsion (17),2) advance along upper strata direction of propulsion (17) when upper work plane (33) after 1.2 meters, beginning is along the epipelagic zone crushing function elevating conveyor (29) in upper strata direction of propulsion (17) mobile upper haulage gate (14) successively, two leather belt reshipment machines (30), move again the upper strata advance support pillar (18) in upper haulage gate (14) and the crossheading that gets on the right track (6), 1.2 meters of displacements, stop the exploitation of upper work plane (33) after having moved, change the exploitation of lower work plane (34) over to;3) exploitation of lower floor's coal work plane: mine along the direction that the lower floor's direction of propulsion (22) with lower work plane (34) forms the oblique angle at the upper end near work plane (34) under lower haulage gate (13) side with lower floor's coal-winning machine (132), namely adopt the feed of cutting sth. askew, when reaching 0.6 meter, the front and back of lower floor's coal-winning machine (132) cylinder depth of cut retreats again reverse coal cutting, adopt the oblique angle coal, then pass lower floor's coal drag conveyor (128) and lower floor's hydraulic support (23), make lower floor's drag conveyor (128) move into the direction parallel with incision eye (10), lower floor's coal-winning machine (132) continues to the coal cutting of advancing of lower railway crossheading (5) direction, and advancing with lower floor's coal-winning machine (132), follow lower floor's coal-winning machine (132) mobile lower floor hydraulic support (23) and lower floor's drag conveyor (128) at lower work plane (34) by lower floor's direction of propulsion (22), until lower work plane (34) is near the lower end of lower railway crossheading (5) side, then exploit to the upper end near lower haulage gate (13) side near the lower end of lower railway crossheading (5) side from lower work plane (34) with same method, complete an exploitation of an i.e. cycle operation back and forth, lower work plane (34) advances 1.2 meters along lower floor's direction of propulsion (22),4) work plane (34) advances after 1.2 meters along lower floor's direction of propulsion (22) instantly, beginning is along lower floor's band crushing function elevating conveyor (129), lower floor's belt conveyer (130) in lower floor's direction of propulsion (22) mobile lower haulage gate (13) successively, move again the lower floor's advance support pillar (21) in lower haulage gate (13) and lower railway crossheading (5), 1.2 meters of displacements, stop the exploitation of lower work plane (34) after having moved, change the exploitation of work plane (33) over to;5) repeat above-mentioned 1), 2) and 3), 4) step, make up and down work plane alternating recovery, until upper work plane (33) and lower work plane (34) during respectively along 18 meters of upper strata direction of propulsion (17) or lower floor's direction of propulsion (22) propellings, carry out following normal production stage;Keep the mistake of 6 meters apart from while back production continuously, until upper work plane and lower working face extraction are complete before and after the upper strata coal-winning machine (32) of upper work plane (33) and lower floor's coal-winning machine (132) of lower work plane (34);The means of transportation of lower floor's coal: the coal that lower floor's coal-winning machine (132) is cut off is transported to lower floor by lower floor's drag conveyor (128) of lower work plane (34) and reprints to lower floor's belt conveyer (130) with the elevating conveyor (129) of crushing function, coal is transported to collective conveyance lane (1), then transports ground to; The means of transportation of day-coal: the coal that the upper strata coal-winning machine (32) of upper work plane (33) is cut off is reprinted to two leather belt reshipment machines (30) by the elevating conveyor (29) that upper strata drag conveyor (28) is transported to the epipelagic zone crushing function, reprinted by two leather belt reshipment machines (30) again and to milling coal hole elevating conveyor (31), coal is slipped to lower floor's belt conveyer (130), coal is transported to collective conveyance lane (1), then transports ground to.
- 2. closely girdle according to claim 1 with adopting and transportation method, is characterized in that:The length L 1 of upper work plane (33) is 80～150 meters, and span length is 4 meters, and the length L 2 of lower work plane (34) is L1+8+2 * 4 (rice);On cut eye (9) and incision eye (10) width L5 be 6 meters, on a mistake of cutting with the incision eye be 6 meters apart from L6;What get on the right track crossheading (6) and lower railway crossheading (5) is 4 meters apart from m, and upper haulage gate (14) is 4 meters with lower haulage gate (13) apart from m;Distance L 3 between up and down connection roadway (7) and connection roadway (8) is 25 meters, and special-purpose drawing-off gas lane (4) is 10 meters with the coal pillar width h of lower railway crossheading (5);In lower haulage gate (13) and upper haulage gate (14), be 50 meters every L4 a glance milling coal hole (11) is set;The length R of the reprinting length of epipelagic zone crushing function elevating conveyor (29) and two belt conveyers (30) is 50 meters.
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| RU2760450C1 (en) * | 2021-05-31 | 2021-11-25 | федеральное государственное бюджетное образовательное учреждение высшего образования «Санкт-Петербургский горный университет» | Method for development of a thick gently sloping bed of mineral deposit |
| CN117090573B (en) * | 2023-10-17 | 2023-12-19 | 臣功环境科技有限公司 | Z-type full-wind-pressure staggered strip continuous mining and continuous charging integrated process for mine |
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| CN101302931A (en) * | 2008-06-25 | 2008-11-12 | 闫振东 | Method for extracting rim angle coal and re-extracting after warehouse coal extracting |
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