CN103016045B - Mining continuous quantitative secondary hole sealing system - Google Patents
Mining continuous quantitative secondary hole sealing system Download PDFInfo
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- CN103016045B CN103016045B CN201210522032.9A CN201210522032A CN103016045B CN 103016045 B CN103016045 B CN 103016045B CN 201210522032 A CN201210522032 A CN 201210522032A CN 103016045 B CN103016045 B CN 103016045B
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- hole sealing
- secondary hole
- sealing system
- air
- rotary feeder
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- 238000007789 sealing Methods 0.000 title claims abstract description 20
- 238000005065 mining Methods 0.000 title claims abstract description 9
- 230000001133 acceleration Effects 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims description 12
- 230000008676 import Effects 0.000 claims description 3
- 239000003245 coal Substances 0.000 abstract description 13
- 239000000843 powder Substances 0.000 abstract description 13
- 238000000605 extraction Methods 0.000 abstract description 9
- 238000005553 drilling Methods 0.000 abstract description 6
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 238000005086 pumping Methods 0.000 description 7
- 239000007787 solid Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
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- Air Transport Of Granular Materials (AREA)
Abstract
The invention discloses a mining continuous quantitative secondary hole sealing system. An air inlet pipeline of the secondary hole sealing system is connected with an inlet of a mechanical timer. An outlet of the mechanical timer is simultaneously connected with branch pipelines I and II. The branch pipeline II is sequentially connected with a pressure regulating valve II, a one-way valve II and a fastening device in series. The fastening device is connected with a pneumatic motor through a high-pressure air pipe. The pneumatic motor is connected with a rotary feeder. The upper end of the rotary feeder is connected with the lower end of a bin of a feeding device, and the lower end of the rotary feeder is connected with the upper end of an acceleration air chamber. The branch pipeline I is sequentially connected with a pressure regulating valve I, a one-way valve I and the acceleration air chamber in series. The secondary hole sealing system is particularly applied to secondary hole sealing for underground gas extraction drilling in a coal mine; powder can be continuously and quantitatively conveyed according to the actual conditions of an underground site of the coal mine, so that the powder hole sealing quality is controlled more effectively. An underground compressed air system is used as power, so that the secondary hole sealing system can be used in the underground site of the coal mine safely and reliably.
Description
Technical field
The present invention relates to a kind of mining powder conveying apparatus, especially a kind of secondary hole sealing device of mash gas pumping drilling.
Background technology
Gas Disaster is one of colliery major casualty, and one of fundamental measure of control coal mine gas disaster is gas pumping, and the many collieries of China are in the gas pumping later stage, owing to leaking out in crack, extraction region, extraction concentration is generally on the low side, has a strong impact on gas pumping, easily causes spontaneous combustion of coal seam.For this reason, this domain engineering technician proposes " improving the secondary hole sealing method of coal bed drilling gas extraction concentration " (ZL200810023609.5), namely in extraction borehole, carry fine expansion powder, powder under extraction suction function coal petrography crack, shutoff extraction region to improve the method for extraction concentration.According to the physical condition of underground coal mine, in order to better carry powder in boring, engineers and technicians in this field have invented " a kind of secondary hole sealing device of mash gas pumping drilling " (ZL200810023608.0), after this device is connected with underground coal mine compressed-air system, powder is subject to the effect of strength blowback and self gravitation, fall to after mixing chamber mixes with compressed air, be transported to mash gas pumping drilling and shutoff coal petrography crack.But this device exists, and feed is discontinuous, discharge quantity is suddenly big or suddenly small even causes the problems such as transfer pipeline blocking, have impact on the effect of secondary hole sealing to a certain extent.
Summary of the invention
In order to the feed overcoming existing " a kind of secondary hole sealing device of mash gas pumping drilling " is discontinuous, the suddenly big or suddenly small defect even causing transfer pipeline to block of discharge quantity, the invention provides a kind of mining continuous and quantitative formula secondary hole sealing system, continuous and quantitative formula secondary hole sealing system that this is mining can continuous feeding, and transfer pipeline can not block.
Technical scheme of the present invention is: this is mining, and continuous and quantitative formula secondary hole sealing system comprises air inlet pipeline, mechanical timer, feeding device and discharging pipeline, air inlet pipeline is connected with the import of mechanical timer, the outlet of mechanical timer is connected with II branch line with I branch line simultaneously, II branch line sequential series has II pressure regulator valve, II one way valve and fastener, fastener is connected with air motor by high-pressure air pipe, air motor is connected with rotary feeder, the upper end of rotary feeder is connected with the lower end of the feed bin of feeding device, the lower end of rotary feeder is connected with the upper end of accelerating air chamber, I branch line sequential series has I pressure regulator valve, I one way valve and acceleration air chamber, the outlet accelerating air chamber is connected with discharging pipeline.
I pressure regulator valve, I one way valve and II pressure regulator valve, II one way valve control I branch line between mechanical timer and feeding device and II branch line respectively.Feed bin upper end is provided with feed bin lid, and feed bin top is provided with safety-valve.Rotary feeder and air motor, between feed bin and acceleration air chamber, all adopt Flange joint.II branch line is connected by fastener with between high-pressure air pipe.Air inlet pipeline, I branch line, II branch line are four points of iron pipes, and high-pressure air pipe is plastic flexible pipe, and discharging pipeline is six points of iron pipes; I branch line with acceleration air chamber, accelerate between air chamber with discharging pipeline, all to adopt reducing to be threaded.
Advantage of the present invention: the secondary hole sealing being particularly useful for coal mine gas extraction borehole, can realize the continuous and quantitativeization conveying of powder, more effectively control powder sealing quality according to the actual conditions at underground coal mine scene.Device utilizes underground pressure air system as power, safe and reliable when underground coal mine uses.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention.
In figure: 1. air inlet pipeline, 2. mechanical timer, 3. I pressure regulator valve, 4. I one way valve, 5. II pressure regulator valve, 6. II one way valve, 7. feeding device, 7-1. feed bin lid, 7-2. feed bin, 7-3. air motor, 7-4. rotary feeder, 7-5. accelerates air chamber, 8. fastener, 9. II branch line, 10. I branch line, 11. high-pressure air pipes, 12. discharging pipelines, 13. safety-valves
Detailed description of the invention
Air inlet pipeline 1 is connected with the import of mechanical timer 2, and the outlet of mechanical timer 2 is connected with II branch line 9 with I branch line 10 simultaneously.II branch line 9 sequential series has II pressure regulator valve 5, II one way valve 6 and fastener 8.Fastener 8 is connected with air motor 7-3 by high-pressure air pipe 11, and air motor 7-3 is connected with rotary feeder 7-4.The upper end of rotary feeder 7-4 is connected with the lower end of the feed bin 7-2 of feeding device 7, and the lower end of rotary feeder 7-4 is connected with the upper end of accelerating air chamber 7-5.I branch line sequential series has I pressure regulator valve, I one way valve and accelerates air chamber 7-5, and the outlet accelerating air chamber 7-5 is connected with discharging pipeline 12.
Rotary feeder 7-4 has four impellers, and invariablenes turning speed when air pressure is constant can realize continuous and quantitative feed, and rotating speed is at 6 r/min ~ 20 r/min, and feed quantity is at 8 L/min ~ 30 L/min.Accelerating air chamber 7-5 is class conical curve structure, can be mixed equably by the powder that rotary feeder 7-4 supplies in 2s with the air-flow in pipeline.Discharge end gas-solid ratio by regulating the pressure regulating valve on two branch roads to control, between 0.02 ~ 0.07.
The course of work: underground pressure air pipeline is connected with air inlet pipeline 1, rotary machine timer 2 sets the working time, regulates II pressure regulator valve 5, II one way valve 6, controls the rotary speed of air motor 7-3.Powder in feed bin 7-2 is fed in acceleration air chamber 7-5 by rotary feeder 7-4 with certain speed; Regulate I pressure regulator valve 3, I one way valve 4, control the air-flow of I branch line 10.This road air-flow reaches certain gas-solid ratio with the powder Homogeneous phase mixing in pipeline accelerating air chamber 7-5, and powder is blown in boring by discharging pipeline 12, and in setting-up time, feed is complete, and mechanical timer 2 cuts out air inlet pipeline 1 automatically, stops feed.Required discharging gas-solid ratio regulates by I pressure regulator valve 3 and I one way valve 4 or II pressure regulator valve 5 and II one way valve 6; Keep when the stream pressure in I branch line 10 being increased by I pressure regulator valve 3 and I one way valve 4 II branch line 9 stream pressure constant or reduce time, in discharging pipeline 12, gas-solid ratio will increase; Keep when the stream pressure in II branch line 9 being increased by II pressure regulator valve 5 and II one way valve 6 I branch line 10 stream pressure constant or reduce time, in discharging pipeline 12, gas-solid ratio will reduce.
Claims (1)
1. a mining continuous and quantitative formula secondary hole sealing system, this is mining, and continuous and quantitative formula secondary hole sealing system comprises air inlet pipeline, mechanical timer, feeding device and discharging pipeline, it is characterized in that: air inlet pipeline is connected with the import of mechanical timer, the outlet of mechanical timer is connected with II branch line with I branch line simultaneously, II branch line sequential series has II pressure regulator valve, II one way valve and fastener, fastener is connected with air motor by high-pressure air pipe, air motor is connected with rotary feeder, the upper end of rotary feeder is connected with the lower end of the feed bin of feeding device, the lower end of rotary feeder is connected with the upper end of accelerating air chamber, I branch line sequential series has I pressure regulator valve, I one way valve and acceleration air chamber, the outlet accelerating air chamber is connected with discharging pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210522032.9A CN103016045B (en) | 2012-12-07 | 2012-12-07 | Mining continuous quantitative secondary hole sealing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210522032.9A CN103016045B (en) | 2012-12-07 | 2012-12-07 | Mining continuous quantitative secondary hole sealing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103016045A CN103016045A (en) | 2013-04-03 |
| CN103016045B true CN103016045B (en) | 2014-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210522032.9A Active CN103016045B (en) | 2012-12-07 | 2012-12-07 | Mining continuous quantitative secondary hole sealing system |
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| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4493593A (en) * | 1981-09-29 | 1985-01-15 | Ferroplast Gesellschaft fur Metall- und Kunststoffepzeucnisse mbH | Method and device for continuous transporting powdered, fine-grained and coarse-grained materials |
| JPH1130257A (en) * | 1997-07-10 | 1999-02-02 | Nissin Kogyo Kk | Piston insulating thermal structure of disc brake for vehicle |
| CN1438961A (en) * | 2000-06-28 | 2003-08-27 | 齐柏林料仓和设备技术有限公司 | Method for conveying solid substance |
| CN201241725Y (en) * | 2008-06-17 | 2009-05-20 | 淮南矿业(集团)有限责任公司 | Mining polyurethane hole packer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251030B (en) * | 2008-04-10 | 2011-06-08 | 中国矿业大学 | Secondary hole sealing method capable of improving coal bed drilling firedamp sucking concentration |
| CN101251029B (en) * | 2008-04-10 | 2010-06-02 | 中国矿业大学 | Secondary hole sealing device for firedamp taking-out discharging drilling |
-
2012
- 2012-12-07 CN CN201210522032.9A patent/CN103016045B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4493593A (en) * | 1981-09-29 | 1985-01-15 | Ferroplast Gesellschaft fur Metall- und Kunststoffepzeucnisse mbH | Method and device for continuous transporting powdered, fine-grained and coarse-grained materials |
| JPH1130257A (en) * | 1997-07-10 | 1999-02-02 | Nissin Kogyo Kk | Piston insulating thermal structure of disc brake for vehicle |
| CN1438961A (en) * | 2000-06-28 | 2003-08-27 | 齐柏林料仓和设备技术有限公司 | Method for conveying solid substance |
| CN201241725Y (en) * | 2008-06-17 | 2009-05-20 | 淮南矿业(集团)有限责任公司 | Mining polyurethane hole packer |
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| CN103016045A (en) | 2013-04-03 |
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