CN205558897U - System for creep into state prediction stability of coal seam with coal seam - Google Patents
System for creep into state prediction stability of coal seam with coal seam Download PDFInfo
- Publication number
- CN205558897U CN205558897U CN201620109753.0U CN201620109753U CN205558897U CN 205558897 U CN205558897 U CN 205558897U CN 201620109753 U CN201620109753 U CN 201620109753U CN 205558897 U CN205558897 U CN 205558897U
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- CN
- China
- Prior art keywords
- coal seam
- rig
- coal
- hall current
- creep
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- Expired - Fee Related
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- 239000003245 coal Substances 0.000 title claims abstract description 67
- 238000005553 drilling Methods 0.000 claims abstract description 29
- 238000010030 laminating Methods 0.000 claims abstract description 4
- 238000012795 verification Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model provides a system for creep into state prediction stability of coal seam with coal seam aims at the quantitative description coal seam state of creeping into and then provides the reference for stability of coal seam's prediction. The utility model discloses main creep into state test alarm system including the coal seam system of creeping into with the rig that hall current counted the core, the coal seam system of creeping into includes rig, cable, drill bit, drilling rod, it includes hall current meter, output dial plate, stability of coal seam alarm system to creep into the state test system, the hall current meter can use pincerlike hall current meter, and its concrete access way is: grip pliers ammeter handle and spanner are pressed the spanner and are opened and keep silent, arrange the rig cable in the central point that keeps silent and put, loosen the spanner again and make the two surface laminatings of keeping silent, drilling rod one end links to each other with the drill bit with the continuous one end of rig.
Description
Technical field
The utility model belongs to the coal exploitation field in energy technology, it is adaptable to regularity of coal seam is predicted, especially has the prediction of seam with potential outburst danger working face front regularity of coal seam.
Background technology
Along with the coal mining degree of depth strengthens day by day, coal and gas prominent disaster certainly will be on the rise, and qualification and assessment to Coal Seam Outburst Hazard are to predicting, forecasting and prevent and treat coal and gas prominent important in inhibiting.It is generally believed that the outburst hazard of irregular coal seam regular coal seam to be far longer than, therefore the prediction of regularity of coal seam is just particularly important.
At present, it is determined that the index of Coal Seam Outburst Hazard mainly has the Failure type of coal, gas diffusion initial speed, the solid coefficient of coal, coal-bed gas pressure etc..The bit freezing occurred when thinking in " coal and gas prominent measurement specification " and carry out the operations such as boring in coal seam is a kind of important coal or rock dynamic phenomenon, can be as judging projecting coal bed mark.In coal bed drilling work progress, be difficult to be formed firm boring in drilling rod enters the irregular coal seam that coal seam lift height soft, soft is big because coal mass strength is relatively low, so boring surrounding medium stress increases, and drilling rod is held tightly, creeping into difficulty, rig real output increases.Therefore to drilling in coal state, the particularly monitoring in real time of rig real output can reflect regularity of coal seam, it is also possible to the reference index evaluated as Coal Seam Outburst Hazard.
In sum, drilling in coal state can be good at reflecting regularity of coal seam, on the one hand can reasonable description regularity of coal seam to the analysis of the state of creeping into, another aspect can prevent and treat the problems such as the bit freezing during drilling, but the most only state of creeping into is made to qualitatively judge the uncertainty that existence is the biggest by the field experience with workman, therefore realizes the real time measure important in inhibiting of rig real output during drilling in coal state particularly drilling in coal.
Summary of the invention
The utility model proposes a kind of system with drilling in coal status predication regularity of coal seam, it is intended to quantitative description drilling in coal state and then the prediction for regularity of coal seam provide reference.
For achieving the above object, the invention mainly comprises drilling in coal system and be calculated as the rig of core with Hall current and creep into state verification warning system；Described drilling in coal system includes rig, cable, drill bit, drilling rod；Described state verification system of creeping into includes Hall current meter, power output dial plate, regularity of coal seam warning system；Described Hall current meter can use pincerlike Hall current meter, and its concrete access way is: holds pliers ammeter handle and spanner, opens jaw by wrench, and rig cable is placed in jaw center, then unclamp spanner and make two jaw surfaces laminatings；The one end that is connected with rig, drilling rod one end is connected with drill bit.
Detailed description of the invention is as follows: in rig creeps into operation process, rig creeps into state verification system, in real time the real output in monitoring rig operation process.When real output keeps stably being not larger than rig rated power it is believed that drilling process is normal, creep into regularity of coal seam good；Think when real output fluctuation ratio exceedes more greatly or for a long time drilling well rated power and creep into exception, creep into regularity of coal seam poor, and start warning system, remind operating worker and engineers and technicians to carry out corresponding outburst prevention measures, prevent the generation of coal and gas prominent accident.
The invention has the beneficial effects as follows, utilize and be calculated as main element with Hall current and constituted rig practicality power real-time monitoring system, creep into the determination of state for underground coal mine, reduce and creep into fault and creep into the reference that the prediction offer of front regularity of coal seam is useful.
Accompanying drawing explanation
Accompanying drawing 1 is the system schematic with drilling in coal status predication regularity of coal seam of the present invention.
In figure: (1) is rig, (2), for creeping into state verification system, (3) are cable, and (4) are drill bit, and (5) are coal seam, and (6) are drilling rod, and (7) are rock stratum.The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Detailed description of the invention
Drilling in coal is that operating type is crept in a kind of common down-hole, is widely used at aspects such as gas pumping, pressure release protrusion-dispelling and coal explorations, and in drilling process, the monitoring state of creeping into can be as the prediction mode of a kind of regularity of coal seam in real time.
Detailed description of the invention is as follows:
Rig (1) is arranged before creeping into operation and starting, then the rig being calculated as core with Hall current is crept into state verification system (2) and accesses rig service cable (3), start rig (1) to start to creep into operation, rear unlatching rig creeps into state verification system (2), during in creeping into engineering, drill bit (4) is positioned at coal seam (5), rear kelly bar (6) is positioned in rock stratum (7), in drilling process, rig creeps into state verification system (2) and monitors real output when rig works in real time, and make the regularity of coal seam prediction of corresponding front and report to the police.
Described state verification system of creeping into includes Hall current meter, power output dial plate, regularity of coal seam warning system.
Described Hall current meter can use pincerlike Hall current meter, its concrete access way is: hold pliers ammeter handle and spanner, open jaw by wrench, rig cable (3) is placed in jaw center, then unclamp spanner and make two jaw surfaces laminatings.
Described real output is multiplied by rated voltage by the current value that Hall current measurement measures and calculates.
Described prediction and type of alarm may be set to: only show rig real output on dial plate when rig real output is less than rated power；When rig real output occurs 2 times and the above situation beyond rated power 10% during creeping into 1m, warning system starts, and sends voice prompt, reminds staff's rig front coal body unstable, dangerous.
Claims (1)
1. one kind with the system of drilling in coal status predication regularity of coal seam, it is characterised in that: mainly include drilling in coal system and be calculated as the rig of core with Hall current and creep into state verification warning system (2)；Described drilling in coal system includes rig (1), cable (3), drill bit (4), drilling rod (6)；Described state verification system of creeping into includes Hall current meter, power output dial plate, regularity of coal seam warning system；Described Hall current meter can use pincerlike Hall current meter, its concrete access way is: hold pliers ammeter handle and spanner, open jaw by wrench, rig cable (3) is placed in jaw center, then unclamp spanner and make two jaw surfaces laminatings；The one end that is connected with rig, drilling rod one end is connected with drill bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620109753.0U CN205558897U (en) | 2016-02-03 | 2016-02-03 | System for creep into state prediction stability of coal seam with coal seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620109753.0U CN205558897U (en) | 2016-02-03 | 2016-02-03 | System for creep into state prediction stability of coal seam with coal seam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205558897U true CN205558897U (en) | 2016-09-07 |
Family
ID=56821744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620109753.0U Expired - Fee Related CN205558897U (en) | 2016-02-03 | 2016-02-03 | System for creep into state prediction stability of coal seam with coal seam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205558897U (en) |
-
2016
- 2016-02-03 CN CN201620109753.0U patent/CN205558897U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20170203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |