CN107130989A - Hydraulic support of top-coal saving face puts coal method - Google Patents
Hydraulic support of top-coal saving face puts coal method Download PDFInfo
- Publication number
- CN107130989A CN107130989A CN201710335186.XA CN201710335186A CN107130989A CN 107130989 A CN107130989 A CN 107130989A CN 201710335186 A CN201710335186 A CN 201710335186A CN 107130989 A CN107130989 A CN 107130989A
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- China
- Prior art keywords
- coal
- hydraulic support
- caving
- puts
- discharge outlet
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
- E21D23/0013—Frame type supports
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
Abstract
Coal method is put the invention discloses a kind of hydraulic support of top-coal saving face, the hydraulic support is the hydraulic support using electric hydraulic control system, and the coal method of putting is comprised the following steps：Step 1, to working face Top coal caving characteristic carry out Real-Time Evaluation；Step 2, determine working face caving mode；The hydraulic support coal discharge outlet pattern that step 3, foundation match with working face caving mode, final perform puts coal operation；Step 4, scrapper conveyor is monitored in real time, when more than set threshold value, be reduced or turned off hydraulic support coal discharge outlet, the beneficial effects of the invention are as follows：（1）Safety index, monitoring index, progress indicator are brought into the present invention, on the premise of safety, yield is ensured, standardization is realized and puts coal；（2）Replacement manually puts coal, reduces the labor intensity of workman, improves operating environment；（3）It is that top-coal caving face is implemented in full Intelligentized mining and laid the foundation by refining index, quantizating index.
Description
Technical field
Coal method is put the present invention relates to a kind of fully mechanized coal face, more particularly to a kind of hydraulic support of top-coal saving face puts coal
Method, belongs to coal mining production technical field.
Background technology
For top-coal caving face, it is a most important procedure to put coal operation, and it not only influences coal resources to return
Yield, also has a major impact to personal security, equipment safety.The coal operation of putting of current China top-coal caving face relies primarily on people
Work is manually operated, and because the randomness of manual operation is big, lack of standard is strong, manually operated not only inefficiency, and labor intensity is big,
Have an effect on equipment safety and put ature of coal amount, rear portion drag conveyor can often occur and kill, goaf bulk spoil is fallen into frame
Situations such as.
The content of the invention
In order to overcome, the labor intensity that coal operation is put in fully mechanized coal face is big, efficiency is low, normative poor, random big, peace
The problems such as hidden danger be'ss more full defect, coal method is put the invention provides a kind of hydraulic support of top-coal saving face.
To achieve these goals, the technical scheme is that：A kind of hydraulic support of top-coal saving face puts coal method, institute
It is the hydraulic support using electric hydraulic control system to state hydraulic support, and the coal method of putting is comprised the following steps：
Step 1, to working face Top coal caving characteristic carry out Real-Time Evaluation；
Step 2, accounting drag conveyor bearing capacity are simultaneously combined determination working face caving mode with step 1；
The hydraulic support coal discharge outlet pattern that step 3, foundation match with working face caving mode, final perform puts coal operation；
The output current and gas emission of step 4, in real time monitoring scrapper conveyor motor, when more than set threshold value, subtract
Small or closing hydraulic support coal discharge outlet.
As the improvement of above-mentioned technical proposal, the step 1 includes below scheme：
1）, determine the top coal thickness and dirt band number of plies and intensity；
2）, determine working surface hydraulic support safety valve unlatching rate；
3）, determine that working surface hydraulic support maximum operation resistance accounts for the percentage of the hydraulic support quantity of yield load 80%；
4）, working face is divided into 3 ~ 5 sections, every section by being carried out putting coal manually by two Field Force, and record top coal caving time,
Tail boom number of oscillations, plate stretch receipts number of times, and the record result of two people is averaged；
5）, to 1）~4）The numerical value that is gathered determines to be subordinate to angle value and distributes weight, and obtained by subordinated-degree matrix method comprehensive
Point, finally determine Top coal caving characteristic.
As the improvement of above-mentioned technical proposal, the caving mode described in the step 2 includes putting coal freighter number and puts coal interval
Number.
As the improvement of above-mentioned technical proposal, the hydraulic support coal discharge outlet pattern is the Fang Mei mechanisms of hydraulic support at what
When, where perform which kind of put coal action series of standards program general name.
As the improvement of above-mentioned technical proposal, the coal discharge outlet pattern is divided into three kinds, is respectively first mode playback F1, normally returns
Adopt model F 2, ending model F 3；Three kinds of coal discharge outlet patterns are respectively different drawing sequences, put coal mechanism status and angle；
First mode playback F1, normal back production model F 2, the drawing sequence for the model F 3 that finishes up, put coal mechanism status and angle is shown in Table 1, table
2 and table 3：
Table 1, first mode playback F1
Table 2, normal back production model F 2
Table 3, ending model F 3
It is preferred that, the step 4 middle scraper machine threshold values is two, is respectively fully loaded with early warning value and overload early warning value.
The beneficial effects of the invention are as follows：
（1）Safety index, monitoring index, progress indicator are brought into the present invention, it is real on the premise of safety, yield is ensured
Show standardization and put coal, it is to avoid put wasting of resources phenomenon caused by coal randomness because artificial.
（2）Coal manually is put by substituting, the labor intensity of workman is reduced, improves operating environment.
（3）It is that top-coal caving face is implemented in full Intelligentized mining and laid the foundation by refining index, quantizating index.
Brief description of the drawings
Fig. 1 is hydraulic support coal discharge outlet just mode playback F1 circulations figure；
Fig. 2 is the normal circulation of back production model F 2 figure of hydraulic support coal discharge outlet；
Fig. 3 is the hydraulic support coal discharge outlet ending circulation figure of model F 3；
Fig. 4 is scrapper conveyor load monitoring schematic diagram.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Embodiment 1
It is comprehensive to the present invention to put with reference to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 by taking the electro-hydraulic control hydraulic support top-coal caving face of certain ore deposit as an example
Working surface hydraulic support is put coal method and elaborated, and comprises the following steps：
Step 1, Real-Time Evaluation is carried out to working face Top coal caving characteristic, specific evaluation method is as follows：
（1）, determine the top coal thickness and dirt band number of plies and intensity；
Determined according to the composite columnar section of the ore deposit working face, top coal thickness H1=15m, dirt band number of plies C=8 layer, dirt band thickness H2=
1.9m。
（2）, determine working surface hydraulic support safety valve unlatching rate；
Analyzed by monitoring the data obtained to the ore deposit working face rock pressure monitoring system, result shown in table 4 below can be obtained.
The safety valve unlatching rate of table 4
（3）, determine that support maximum operation resistance accounts for the percentage of the hydraulic support quantity of yield load 80%；
Analyzed by monitoring the data obtained to the ore deposit working face rock pressure monitoring system, result shown in table 5 below can be obtained.
The maximum operation resistance of table 5 accounts for yield load ratio
（4）, working face is divided into 3 sections, every section by being carried out putting coal manually by two Field Force, and record top coal caving time,
Tail boom number of oscillations, plate stretch receipts number of times, and the record result of two people is averaged, as shown in table 6 below；
The maximum operation resistance of table 6 accounts for yield load ratio
（5）, to step（1）~ step（4）Identified numerical value determines to be subordinate to angle value and distribute weight, and passes through subordinated-degree matrix
Method obtains comprehensive score, finally determines Top coal caving characteristic, as shown in table 7 below.
The Top coal caving characteristic of table 7 is classified
Step 2, foundation Top coal caving characteristic determine working face caving mode, main to include putting coal freighter number and put coal space-number.
Step 3, foundation put the hydraulic support coal discharge outlet pattern of coal patterns match with working face, and final perform puts coal work
Industry.Coal discharge outlet pattern refers to, when, where the Fang Mei mechanisms of support are performing the series of standards program which kind of puts coal action
General name, shown in table 8 specific as follows.
The caving mode of table 8 and the determination of coal discharge outlet pattern
The output current and gas emission of step 4, in real time monitoring scrapper conveyor motor, scrapper conveyor threshold values is two, respectively full
Early warning value 1 and overload early warning value 2 are carried, when more than set fully loaded early warning value 1, reduces hydraulic support coal discharge outlet.When
When more than set overload early warning value 2, hydraulic support coal discharge outlet is closed.
Technical scheme is not limited to the limitation of above-mentioned specific embodiment, and every technique according to the invention scheme is done
The technology deformation gone out, each falls within protection scope of the present invention.
Claims (6)
1. a kind of hydraulic support of top-coal saving face puts coal method, it is characterised in that：The hydraulic support is using electric hydraulic control system
Hydraulic support, the coal method of putting comprises the following steps：
Step 1, to working face Top coal caving characteristic carry out Real-Time Evaluation；
Step 2, accounting drag conveyor bearing capacity are simultaneously combined determination working face caving mode with step 1；
The hydraulic support coal discharge outlet pattern that step 3, foundation match with working face caving mode, final perform puts coal operation；
The output current and gas emission of step 4, in real time monitoring scrapper conveyor motor, when more than set threshold value, subtract
Small or closing hydraulic support coal discharge outlet.
2. a kind of hydraulic support of top-coal saving face according to claim 1 puts coal method, it is characterised in that：The step 1
Including below scheme：
1）, determine the top coal thickness and dirt band number of plies and intensity；
2）, determine working surface hydraulic support safety valve unlatching rate；
3）, determine that working surface hydraulic support maximum operation resistance accounts for the percentage of the hydraulic support quantity of yield load 80%；
4）, working face is divided into 3 ~ 5 sections, every section by being carried out putting coal manually by two Field Force, and record top coal caving time,
Tail boom number of oscillations, plate stretch receipts number of times, and the record result of two people is averaged；
5）, to 1）~4）The numerical value that is gathered determines to be subordinate to angle value and distributes weight, and obtained by subordinated-degree matrix method comprehensive
Point, finally determine Top coal caving characteristic.
3. a kind of hydraulic support of top-coal saving face according to claim 1 puts coal method, it is characterised in that：The step 2
Described caving mode includes putting coal freighter number and puts coal space-number.
4. a kind of hydraulic support of top-coal saving face according to claim 1 puts coal method, it is characterised in that：The hydraulic pressure branch
Frame coal discharge outlet pattern for hydraulic support Fang Mei mechanisms when, where perform which kind of put coal action series of standards program
General name.
5. a kind of hydraulic support of top-coal saving face according to claim 1 or 4 puts coal method, it is characterised in that：It is described to put
Coal mouth mold formula is divided into three kinds, is respectively first mode playback F1, normal back production model F 2, ending model F 3；Three kinds of coal discharge outlet patterns point
Drawing sequence that Wei be not different, put coal mechanism status and angle；
First mode playback F1, normal back production model F 2, the drawing sequence for the model F 3 that finishes up, put coal mechanism status and angle is shown in Table 1, table
2 and table 3：
Table 1, first mode playback F1
Table 2, normal back production model F 2
Table 3, ending model F 3
。
6. hydraulic support of top-coal saving face according to claim 1 puts coal method, it is characterised in that：Scraped in the step 4
Trigger threshold values is two, is respectively fully loaded with early warning value and overload early warning value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710335186.XA CN107130989A (en) | 2017-05-12 | 2017-05-12 | Hydraulic support of top-coal saving face puts coal method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710335186.XA CN107130989A (en) | 2017-05-12 | 2017-05-12 | Hydraulic support of top-coal saving face puts coal method |
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| CN107130989A true CN107130989A (en) | 2017-09-05 |
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| CN201710335186.XA Pending CN107130989A (en) | 2017-05-12 | 2017-05-12 | Hydraulic support of top-coal saving face puts coal method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983546A (en) * | 2021-03-03 | 2021-06-18 | 同煤国电同忻煤矿有限公司 | Global intelligent coal caving and coal quantity overload alarm method |
| CN112983422A (en) * | 2021-03-17 | 2021-06-18 | 西安科技大学 | Ore drawing mining method for inclined layered solid deposit |
Citations (6)
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| US4815898A (en) * | 1986-09-09 | 1989-03-28 | Gewerkschaft Eisenhutte Westfalia Gmbh | Roof supports |
| US5033913A (en) * | 1989-12-23 | 1991-07-23 | Meco Mining Equipment Limited | Mine roof support |
| CN1786420A (en) * | 2004-12-10 | 2006-06-14 | 兖州煤业股份有限公司 | Electric hydraulic controlled caving coal method and it hydraulic supporter |
| CN202047852U (en) * | 2011-05-06 | 2011-11-23 | 中煤北京煤矿机械有限责任公司 | Twin-station two-column low-position top coal caving hydraulic bracket |
| CN102704975A (en) * | 2012-06-29 | 2012-10-03 | 中国矿业大学 | Coal-dressing hydraulic bracket for caving coal working face |
| CN204283466U (en) * | 2014-11-24 | 2015-04-22 | 平煤神马机械装备集团河南矿机有限公司 | Be applicable to " three is soft " seam mining totally enclosed type caving roof coal hydraulic support |
-
2017
- 2017-05-12 CN CN201710335186.XA patent/CN107130989A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4815898A (en) * | 1986-09-09 | 1989-03-28 | Gewerkschaft Eisenhutte Westfalia Gmbh | Roof supports |
| US5033913A (en) * | 1989-12-23 | 1991-07-23 | Meco Mining Equipment Limited | Mine roof support |
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| CN102704975A (en) * | 2012-06-29 | 2012-10-03 | 中国矿业大学 | Coal-dressing hydraulic bracket for caving coal working face |
| CN204283466U (en) * | 2014-11-24 | 2015-04-22 | 平煤神马机械装备集团河南矿机有限公司 | Be applicable to " three is soft " seam mining totally enclosed type caving roof coal hydraulic support |
Non-Patent Citations (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983546A (en) * | 2021-03-03 | 2021-06-18 | 同煤国电同忻煤矿有限公司 | Global intelligent coal caving and coal quantity overload alarm method |
| CN112983422A (en) * | 2021-03-17 | 2021-06-18 | 西安科技大学 | Ore drawing mining method for inclined layered solid deposit |
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Application publication date: 20170905 |
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