CN110748352A - Construction method suitable for rapid hole cutting and enlarging - Google Patents
Construction method suitable for rapid hole cutting and enlarging Download PDFInfo
- Publication number
- CN110748352A CN110748352A CN201910989849.9A CN201910989849A CN110748352A CN 110748352 A CN110748352 A CN 110748352A CN 201910989849 A CN201910989849 A CN 201910989849A CN 110748352 A CN110748352 A CN 110748352A
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- CN
- China
- Prior art keywords
- belt
- tunneling
- unit
- coal
- brush
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- Granted
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/01—Methods or apparatus for enlarging or restoring the cross-section of tunnels, e.g. by restoring the floor to its original level
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
Abstract
A construction method suitable for rapid hole cutting and large brushing belongs to the technical field of coal mining construction and can solve the problems that an existing hole cutting and large brushing method is complex in process, low in equipment utilization rate and low in working efficiency, specifically, after hole cutting and pilot tunnel construction is finished, the tail of a belt conveyor is retracted by 50-70 meters, a reverse unit is obliquely cut and fed to brush large, a reversed loader obliquely spans on the belt, a coal baffle plate is installed to discharge coal, and after the hole cutting and pilot tunnel construction is finished, the unit is adjusted to brush large (the belt is retracted simultaneously) until the hole cutting and large brushing is finished. The fully-mechanized excavation construction cutting hole abandons the original construction method, coal is cut by utilizing the unit in an inclined manner, a coal discharging system does not need to be disassembled and assembled, the workload is reduced, and the excavation efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of coal mining construction, and particularly relates to a construction method suitable for rapid hole cutting and enlarging.
Background
The traditional scheme of the hole cutting construction is as follows: tunneling, cutting hole, pilot tunneling, splitting belt, stacking, reversing the unit from 200 meters to the position with large brush, tunneling about 10 meters, paving a scraper-trough conveyer, tunneling 50-100 meters, splitting the scraper-trough conveyer, installing the belt until the brush is large, the traditional construction method needs longer time, and the equipment is repeatedly split and installed, so that the utilization rate of the equipment is not high, and the labor intensity of workers is increased in vain.
Disclosure of Invention
The invention provides a construction method suitable for rapidly brushing large cutting holes, aiming at the problems of complex process, low equipment utilization rate and low working efficiency of the existing large cutting method.
The invention adopts the following technical scheme:
a construction method suitable for cutting eyes and quickly brushing the eyes is disclosed, which comprises the following steps:
the method comprises the following steps that firstly, tunneling equipment is connected to conduct tunneling, hole cutting and pilot tunneling, wherein the tunneling equipment comprises a belt, a reversed loader and a unit, one end of the belt is obliquely connected with one end of the reversed loader, the other end of the reversed loader is connected with the unit, and tunneling is finished until the pilot tunneling is finished;
secondly, contracting the tail of the belt conveyor by 50-70 m;
thirdly, brushing the machine withdrawing unit obliquely to a large extent, wherein the reversed loader obliquely spans on the belt;
and fourthly, after the brush is large in place, the unit is adjusted to move backwards and still obliquely feed to brush large, and the tail of the belt conveyor is simultaneously contracted until the brush is large.
When the hole cutting brush is large, coal is cut obliquely by the unit, stool legs of the loader ride on a tail frame of the belt conveyor, a coal baffle plate is installed at the tail of the belt conveyor, and the reversed loader is obliquely lapped on the belt along with the unit to discharge the coal.
The invention has the following beneficial effects:
according to the invention, the coal is obliquely cut by the unit, and the reversed loader is obliquely arranged on the belt, so that an original coal discharging system can be effectively utilized, the tunneling rate is improved, and the situation of tense excavation connection is relieved. The coal is cut by utilizing the unit in an inclined way, and a coal discharging system is not required to be disassembled and assembled, so that the workload is reduced, and the tunneling efficiency is improved.
The original construction method needs 25 days for the large (200 m) cutting brush, and the coal discharging system does not need to be adjusted, so that the time can be saved by 5 days; the hole cutting pilot tunnel and the brush are constructed only by one belt, so that the utilization rate of equipment can be improved.
Drawings
FIG. 1 is a flow chart I of a conventional tunneling process;
FIG. 2 is a flow chart II of the conventional tunneling process;
FIG. 3 is a flow chart III of the conventional tunneling process;
FIG. 4 is a flow chart II of the tunneling process of the present invention;
FIG. 5 is a flow chart III of the tunneling process of the present invention;
wherein: 1-a belt; 2-a reversed loader; 3-a unit; 4-cutting the pilot tunnel; 5-big brush for cutting eyes.
Detailed Description
The invention is further explained with reference to the accompanying drawings.
A construction method suitable for cutting eyes and quickly brushing the eyes is disclosed, which comprises the following steps:
the method comprises the following steps that firstly, tunneling equipment is connected to conduct tunneling, hole cutting and pilot tunneling, wherein the tunneling equipment comprises a belt, a reversed loader and a unit, one end of the belt is obliquely connected with one end of the reversed loader, the other end of the reversed loader is connected with the unit, and tunneling is finished until the pilot tunneling is finished;
secondly, contracting the tail of the belt conveyor by 50-70 m;
thirdly, brushing the machine withdrawing unit obliquely to a large extent, wherein the reversed loader obliquely spans on the belt;
and fourthly, after the brush is large in place, the unit is adjusted to move backwards and still obliquely feed to brush large, and the tail of the belt conveyor is simultaneously contracted until the brush is large.
When the hole cutting brush is large, coal is cut obliquely by the unit, stool legs of the loader ride on a tail frame of the belt conveyor, a coal baffle plate is installed at the tail of the belt conveyor, and the reversed loader is obliquely lapped on the belt along with the unit to discharge the coal.
As shown in the figure, fig. 1 is a flow chart of a conventional tunneling process, namely tunneling is completed until tunneling is finished;
FIG. 2 is a flow chart II of the existing tunneling process, a belt is disassembled, a unit is poured to a roadway opening, a scraper-trough conveyer is installed, and brushing is carried out to a depth of 80 m;
FIG. 3 is a flow chart III of the existing tunneling process, wherein a scraper-trough conveyer is disassembled, a belt is installed for brushing the bottom till the end, and the bottom is swept by repeating the brushing step;
FIG. 4 is a flow chart II of the tunneling process of the present invention, in which the tail of the machine is contracted and the reverse machine set is obliquely brushed to be large;
fig. 5 is a flow chart iii of the tunneling process of the present invention, and after the tunneling process is completed, the unit U-turn direction brushing is completed.
Claims (2)
1. A construction method suitable for cutting holes and quickly brushing the holes is characterized in that: the method comprises the following steps:
the method comprises the following steps that firstly, tunneling equipment is connected to conduct tunneling, hole cutting and pilot tunneling, wherein the tunneling equipment comprises a belt, a reversed loader and a unit, one end of the belt is obliquely connected with one end of the reversed loader, the other end of the reversed loader is connected with the unit, and tunneling is finished until the pilot tunneling is finished;
secondly, contracting the tail of the belt conveyor by 50-70 m;
thirdly, brushing the machine withdrawing unit obliquely to a large extent, wherein the reversed loader obliquely spans on the belt;
and fourthly, after the brush is large in place, the unit is adjusted to move backwards and still obliquely feed to brush large, and the tail of the belt conveyor is simultaneously contracted until the brush is large.
2. The construction method suitable for rapid reaming according to claim 1, wherein the construction method comprises the following steps: when the brush is big, the coal is cut to the unit slant, and the stool leg of loader rides on the tailstock of belt feeder, and the tail of belt feeder is installed and is kept off the coal board, and the elevating conveyor goes out the coal on the belt along with the oblique overlap joint of group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910989849.9A CN110748352B (en) | 2019-10-17 | 2019-10-17 | Construction method suitable for rapid hole cutting and enlarging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910989849.9A CN110748352B (en) | 2019-10-17 | 2019-10-17 | Construction method suitable for rapid hole cutting and enlarging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110748352A true CN110748352A (en) | 2020-02-04 |
| CN110748352B CN110748352B (en) | 2021-12-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910989849.9A Active CN110748352B (en) | 2019-10-17 | 2019-10-17 | Construction method suitable for rapid hole cutting and enlarging |
Country Status (1)
| Country | Link |
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| CN (1) | CN110748352B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111691886A (en) * | 2020-06-23 | 2020-09-22 | 国家能源集团宁夏煤业有限责任公司 | Construction method for opening cutting hole by fully-mechanized coal mining machine in fully-mechanized coal mining face |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19756418A1 (en) * | 1997-12-18 | 1999-06-24 | Saarbergwerke Ag | Lowering machine for use in galleries of mines |
| CN1932240A (en) * | 2006-09-21 | 2007-03-21 | 闫振东 | Full-seam cutting, retreating, separate moving and full-caving comprehensive mechanized coal mining method and equipment |
| CN102877847A (en) * | 2012-09-24 | 2013-01-16 | 山西晋城无烟煤矿业集团有限责任公司 | Method for tunneling open-off cut expansion opening section of fully mechanized coal mining face |
| CN202731942U (en) * | 2012-08-10 | 2013-02-13 | 陈贵 | Super-soft ultra-thick coal seam large section open-off cut support device |
| CN103244127A (en) * | 2013-04-22 | 2013-08-14 | 中交路桥北方工程有限公司 | Method for quickening construction of multiple-arch tunnel |
| CN105257296A (en) * | 2015-10-08 | 2016-01-20 | 山西晋城无烟煤矿业集团有限责任公司 | Working face through-cut tunneling construction once-tunneling process |
| CN106223957A (en) * | 2016-08-20 | 2016-12-14 | 四川省华蓥山煤业股份有限公司绿水洞煤矿 | A kind of method of half-edge coal seam open-off cut section construction |
| CN106351663A (en) * | 2016-09-29 | 2017-01-25 | 淮南矿业(集团)有限责任公司 | Retrograde brush expansion process for cut construction |
-
2019
- 2019-10-17 CN CN201910989849.9A patent/CN110748352B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19756418A1 (en) * | 1997-12-18 | 1999-06-24 | Saarbergwerke Ag | Lowering machine for use in galleries of mines |
| CN1932240A (en) * | 2006-09-21 | 2007-03-21 | 闫振东 | Full-seam cutting, retreating, separate moving and full-caving comprehensive mechanized coal mining method and equipment |
| CN202731942U (en) * | 2012-08-10 | 2013-02-13 | 陈贵 | Super-soft ultra-thick coal seam large section open-off cut support device |
| CN102877847A (en) * | 2012-09-24 | 2013-01-16 | 山西晋城无烟煤矿业集团有限责任公司 | Method for tunneling open-off cut expansion opening section of fully mechanized coal mining face |
| CN103244127A (en) * | 2013-04-22 | 2013-08-14 | 中交路桥北方工程有限公司 | Method for quickening construction of multiple-arch tunnel |
| CN105257296A (en) * | 2015-10-08 | 2016-01-20 | 山西晋城无烟煤矿业集团有限责任公司 | Working face through-cut tunneling construction once-tunneling process |
| CN106223957A (en) * | 2016-08-20 | 2016-12-14 | 四川省华蓥山煤业股份有限公司绿水洞煤矿 | A kind of method of half-edge coal seam open-off cut section construction |
| CN106351663A (en) * | 2016-09-29 | 2017-01-25 | 淮南矿业(集团)有限责任公司 | Retrograde brush expansion process for cut construction |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111691886A (en) * | 2020-06-23 | 2020-09-22 | 国家能源集团宁夏煤业有限责任公司 | Construction method for opening cutting hole by fully-mechanized coal mining machine in fully-mechanized coal mining face |
| CN111691886B (en) * | 2020-06-23 | 2021-08-31 | 国家能源集团宁夏煤业有限责任公司 | Construction method for opening cutting hole by fully-mechanized coal mining machine in fully-mechanized coal mining face |
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| CN110748352B (en) | 2021-12-03 |
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