CN108507428A - The centrifugal pneumatic shothole stemming machine of one kind and application method - Google Patents

The centrifugal pneumatic shothole stemming machine of one kind and application method Download PDF

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Publication number
CN108507428A
CN108507428A CN201810334016.4A CN201810334016A CN108507428A CN 108507428 A CN108507428 A CN 108507428A CN 201810334016 A CN201810334016 A CN 201810334016A CN 108507428 A CN108507428 A CN 108507428A
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CN
China
Prior art keywords
stemming
ramming machine
machine
back cavity
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810334016.4A
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Chinese (zh)
Inventor
李廷春
张�浩
杜贻腾
薛天恩
张宪堂
朱庆文
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Shandong University of Science and Technology
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Shandong University of Science and Technology
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Application filed by Shandong University of Science and Technology filed Critical Shandong University of Science and Technology
Priority to CN201810334016.4A priority Critical patent/CN108507428A/en
Publication of CN108507428A publication Critical patent/CN108507428A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D1/00Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/08Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
    • F42D1/18Plugs for boreholes
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C41/00Methods of underground or surface mining; Layouts therefor
    • E21C41/16Methods of underground mining; Layouts therefor
    • E21C41/18Methods of underground mining; Layouts therefor for brown or hard coal
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D3/00Particular applications of blasting techniques
    • F42D3/04Particular applications of blasting techniques for rock blasting

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Remote Sensing (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

The invention discloses a kind of centrifugal pneumatic shothole stemming machine and application methods, ramming machine includes Pneumatic motor assembly, ramming machine ante-chamber, ramming machine back cavity, Pneumatic motor assembly is located at ramming machine back cavity lower part, air inlet is connected by snorkel with intake valve on the left of air motor, right side gas outlet connects outlet passageway, and outlet passageway extends to ramming machine back cavity;Ramming machine back cavity is internally provided with centrifugal fan, and centrifugal fan is placed in the rotary shaft of air motor, and eccentric setting feeding cylinder above flabellum, lower section is equipped with stemming baffle;Ramming machine ante-chamber is pyramidal structure, and left end is bolted with back cavity, and right end is connected through a screw thread discharge barrel.The present invention, in conjunction with the thought of flabellum cutting, centrifugation, realizes the purpose of disposable high solidity filling blasthole, uses manpower and material resources sparingly, improve and block efficiency, have a extensive future using pressure-air as power.

Description

The centrifugal pneumatic shothole stemming machine of one kind and application method
Technical field
The present invention relates to a kind of blast working machineries, more particularly to a kind of centrifugal pneumatic shothole stemming machine.
Background technology
In coal production, drilling and blasting method is still the important broken rock means during down-hole mining.Blasthole blocks conduct The key link of blast working not only has certain influence to demolition effect, also has substantial connection with shotfiring safety.In drill eye blasting It in work progress, should be clogged using special stemming at aperture, stemming length need to meet regulation, to ensure explosive in blasthole fully Explosion, extends the action time of detonation gas.Explosion at present block select stemming generally by clay, medium coarse sand, water mixing and At, have the characteristics that hold it is tack-free, fall it is not fragmentary.
With continuously improving for blasthole blocking technology, many convenient Stemming machines instead of traditional artificial kneading stemming side The finished product stemming of method, production has the characteristics that regular shape, porosity are small.Diameter and the comparable cylinder of blasthole is made in Stemming machine After finished product stemming, it is still necessary to which artificial to clog and consolidated with tamper, for vertical hole, filling construction is more convenient;For level Or blasthole is tilted, filling low construction efficiency is limited by operating environment, blocks closely knit difference.It constructs simultaneously in big cross section sinking and blasting In, working face may make a call to hundreds of boreholes, manually clog it is time-consuming and laborious, and consolidate during fragile initiating equipment, influence Construction speed.
Invention content
The present invention is directed to the problem of background above technology, provide it is a kind of it is simple in structure, work efficiency is high, blocks The high centrifugal pneumatic shothole stemming machine of compactness.
Centrifugal pneumatic shothole stemming machine of the invention a kind of, which is characterized in that before it includes Pneumatic motor assembly, ramming machine Chamber, ramming machine back cavity, the Pneumatic motor assembly are located at ramming machine back cavity lower part, and the ramming machine ante-chamber and back cavity pass through It is bolted.
The Pneumatic motor assembly is mainly made of mini-air-motor, intake valve, outlet passageway, which is characterized in that The air motor is pneumatic vane motor, and left side air inlet is connected by snorkel with intake valve, and right side gas outlet connects Connect outlet passageway;The intake valve is used to control the flow of compressed air;The outlet passageway extends to ramming machine back cavity, Channel cross-section is rectangle, and width is identical as filling machine cavity.
The ramming machine back cavity is internally provided with centrifugal fan, and centrifugal fan is placed in the rotary shaft of air motor On, the feeding cylinder of a diameter of 25 ~ 30mm of eccentric setting, allows stemming to fall within the scope of the cutting of flabellum, lower section above flabellum Equipped with stemming baffle, stemming in operation process is avoided to fall into Pneumatic motor assembly.
The ramming machine ante-chamber is pyramidal structure, and right end is connected through a screw thread the discharge barrel of a diameter of 25 ~ 30mm.
To improve the endurance quality and operating flexibility of the present invention, the centrifugal fan flabellum selects stainless steel to close Golden material ensures that there is sufficient intensity to cut stemming;Elastic rubber base is equipped between the air motor and ramming machine shell, Reduce vibration caused by air motor;Chamber enclosure has detachable handle after the ramming machine.
The present invention uses method used below:
(1)High-pressure air pipe is accessed into intake valve, air motor drives fan to rotate clockwise;
(2)Discharge barrel stretches into inside blasthole;The coiled stemming that diameter is slightly less than feeding cylinder diameter is chosen, is put into along charging nozzle, Coiled stemming falls by dead weight, and control centrifugal fan rotary speed is matched with stemming falling speed, so that stemming is cut into tiny Wet piece;
(3)Wet piece of stemming pours at a high speed blasthole, reaches under centrifugal fan centrifugal action and outlet passageway gas pressure after cutting The purpose of blasthole is blocked to high solidity;
(4)After the completion of blasthole plugging construction, connection bolt is removed, using water or pressure-air descaling machine intracavitary portion, when necessary may be used Removal handle provides cleaning facility.
Present invention utilizes flabellum cutting, centrifugation thoughts, have the following advantages:
(1)It selects compressed air as power source, reduces electric leakage, the generation of explosive accident during blast hole stemming, ensure to apply Work safety;
(2)The ante-chamber and back cavity of ramming machine are bolted, easy to disassemble, cleaning and repair internal structure;
(3)Clog that blasthole is convenient and efficient, it is dynamic that the present invention has combined centrifugal fan and air motor outlet passageway provides jointly Power, percussion can significantly improve stemming self compacting ability, and blast hole stemming work disposably can be completed, reduce labor intensity, Improve construction efficiency;
(4)It is simple in structure, it occupies little space, it is easy to carry, adapt to the blast hole stemming work of complex condition.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Marginal data:Air motor 1;Intake valve 2;Outlet passageway 3;Centrifugal fan 4;Feeding cylinder 5;Connect bolt 6;Go out Barrel 7;Handle 8.
Specific implementation mode
Centrifugal pneumatic shothole stemming machine of the invention a kind of, after it includes Pneumatic motor assembly, ramming machine ante-chamber, ramming machine Chamber, the Pneumatic motor assembly are located at ramming machine back cavity lower part, and the ramming machine ante-chamber and back cavity are connected by bolt 6.
The Pneumatic motor assembly is mainly made of mini-air-motor 1, intake valve 2, outlet passageway 3, and feature exists In the air motor 1 is pneumatic vane motor, and left side air inlet is connected by snorkel with intake valve 2, right side outlet Mouth connection outlet passageway 3;The intake valve 2 is used to control the flow of compressed air;The outlet passageway 3 extends to filling Machine back cavity, 3 rectangular cross-section of channel, width are identical as filling machine cavity.
The ramming machine back cavity is internally provided with centrifugal fan 4, and centrifugal fan 4 is placed in the rotation of air motor 1 On axis, the feeding cylinder 5 of a diameter of 25 ~ 30mm of eccentric setting, allows stemming to fall within the scope of the cutting of flabellum above flabellum, under Side is equipped with stemming baffle, and stemming in operation process is avoided to fall into Pneumatic motor assembly.
The ramming machine ante-chamber be pyramidal structure, right end be connected through a screw thread a diameter of 25 ~ 30mm, length be 30 ~ The discharge barrel 7 of 50mm.
4 flabellum of centrifugal fan selects stainless steel alloy material, ensures that there is sufficient intensity to cut stemming;It is described Air motor 1 and ramming machine shell between be equipped with elastic rubber base, reduce air motor 1 caused by vibration;The filling Chamber enclosure has detachable handle 8 after machine.
The application method of the present invention is as described below:
(1)High-pressure air pipe is accessed into intake valve 2, air motor 1 drives fan 4 to rotate clockwise;
(2)Discharge barrel 7 stretches into inside blasthole;The coiled stemming that diameter is slightly less than feeding cylinder diameter is chosen, is put along charging nozzle 5 Enter, coiled stemming falls by dead weight, and control 4 rotary speed of centrifugal fan is matched with stemming falling speed, and stemming is made to cut into It is wet piece tiny;
(3)Wet piece of stemming pours at a high speed blasthole under 3 gas pressure of 4 centrifugal action of centrifugal fan and outlet passageway after cutting, Achieve the purpose that high solidity blocks blasthole;
(4)After the completion of blasthole plugging construction, removes connection bolt 6 and when necessary may be used using water or pressure-air descaling machine intracavitary portion Removal handle 8 provides cleaning facility.

Claims (3)

1. a kind of centrifugal pneumatic shothole stemming machine, it includes Pneumatic motor assembly, ramming machine ante-chamber, ramming machine back cavity, described Pneumatic motor assembly be located at ramming machine back cavity lower part, the ramming machine ante-chamber and back cavity are bolted;The gas Dynamic motor sub-assembly is mainly made of mini-air-motor, intake valve, outlet passageway, and air motor passes on left snorkel and air inlet Valve is connected, and right side gas outlet connects outlet passageway, and outlet passageway extends to ramming machine back cavity, and channel cross-section is rectangle, width with It is identical to clog machine cavity;The ramming machine back cavity is internally provided with centrifugal fan, and centrifugal fan is placed in the rotation of air motor In shaft, eccentric setting feeding cylinder above flabellum allows stemming to fall within the scope of the cutting of flabellum, and lower section is kept off equipped with stemming Plate avoids stemming in operation process from falling into Pneumatic motor assembly;The ramming machine ante-chamber is pyramidal structure, and right end passes through spiral shell Line connects discharge barrel.
2. the centrifugal pneumatic shothole stemming machine of one kind according to claim 1, the air motor and ramming machine shell Between be equipped with elastic rubber base, chamber enclosure has detachable handle after the ramming machine.
3. the centrifugal pneumatic shothole stemming machine of one kind according to claim 1, application method are:
(1)High-pressure air pipe is accessed into intake valve, air motor drives fan to rotate clockwise;
(2)Discharge barrel stretches into inside blasthole;The coiled stemming that diameter is slightly less than feeding cylinder diameter is chosen, is put into along charging nozzle, Coiled stemming falls by dead weight, and control centrifugal fan rotary speed is matched with stemming falling speed, so that stemming is cut into tiny Wet piece;
(3)Wet piece of stemming pours at a high speed blasthole, reaches under centrifugal fan centrifugal action and outlet passageway gas pressure after cutting The purpose of blasthole is blocked to high solidity;
(4)After the completion of blasthole plugging construction, connection bolt is removed, using water or pressure-air descaling machine intracavitary portion, when necessary may be used Removal handle provides cleaning facility.
CN201810334016.4A 2018-04-14 2018-04-14 The centrifugal pneumatic shothole stemming machine of one kind and application method Pending CN108507428A (en)

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CN201810334016.4A CN108507428A (en) 2018-04-14 2018-04-14 The centrifugal pneumatic shothole stemming machine of one kind and application method

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Application Number Priority Date Filing Date Title
CN201810334016.4A CN108507428A (en) 2018-04-14 2018-04-14 The centrifugal pneumatic shothole stemming machine of one kind and application method

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109084648A (en) * 2018-09-18 2018-12-25 贵州贵安新联爆破工程有限公司 A kind of simple tamponade device of horizontal blasthole

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1458496A (en) * 2002-05-17 2003-11-26 中南大学 Quick blasthole blocking up method
CN2709020Y (en) * 2004-04-30 2005-07-13 北京科技大学 Pneumatic solid particle sprayer
CN201963314U (en) * 2010-12-15 2011-09-07 南京天印科技有限公司 Coal mine injection machine
CN203069072U (en) * 2012-11-21 2013-07-17 淮南市伟迪达工贸有限责任公司 Pneumatic stemming machine
CN203244928U (en) * 2013-04-16 2013-10-23 宿州市新园矿山粉尘治理设备有限责任公司 Pneumatic stemmer
CN106907964A (en) * 2017-04-24 2017-06-30 中煤科工集团淮北爆破技术研究院有限公司 A kind of blasthole rapid plugging method
CN107497544A (en) * 2017-09-29 2017-12-22 关华杏 A kind of multi-function fine grinding machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1458496A (en) * 2002-05-17 2003-11-26 中南大学 Quick blasthole blocking up method
CN2709020Y (en) * 2004-04-30 2005-07-13 北京科技大学 Pneumatic solid particle sprayer
CN201963314U (en) * 2010-12-15 2011-09-07 南京天印科技有限公司 Coal mine injection machine
CN203069072U (en) * 2012-11-21 2013-07-17 淮南市伟迪达工贸有限责任公司 Pneumatic stemming machine
CN203244928U (en) * 2013-04-16 2013-10-23 宿州市新园矿山粉尘治理设备有限责任公司 Pneumatic stemmer
CN106907964A (en) * 2017-04-24 2017-06-30 中煤科工集团淮北爆破技术研究院有限公司 A kind of blasthole rapid plugging method
CN107497544A (en) * 2017-09-29 2017-12-22 关华杏 A kind of multi-function fine grinding machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109084648A (en) * 2018-09-18 2018-12-25 贵州贵安新联爆破工程有限公司 A kind of simple tamponade device of horizontal blasthole

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