CN103174456A - Mine under-shaft slurry filling equipment - Google Patents

Mine under-shaft slurry filling equipment Download PDF

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Publication number
CN103174456A
CN103174456A CN2012103939703A CN201210393970A CN103174456A CN 103174456 A CN103174456 A CN 103174456A CN 2012103939703 A CN2012103939703 A CN 2012103939703A CN 201210393970 A CN201210393970 A CN 201210393970A CN 103174456 A CN103174456 A CN 103174456A
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CN
China
Prior art keywords
slurry
valve
conveying
head tank
filling
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
CN2012103939703A
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Chinese (zh)
Inventor
徐海良
李峰
刘大帅
陈奇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Central South University
Original Assignee
Central South University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Central South University filed Critical Central South University
Priority to CN2012103939703A priority Critical patent/CN103174456A/en
Publication of CN103174456A publication Critical patent/CN103174456A/en
Pending legal-status Critical Current

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Abstract

Mine under-shaft slurry filling equipment is composed of a bell valve, a feeding tank, an air inlet pipe, an air inlet valve and a conveying pipe, wherein the bell valve is arranged on the feeding tank and used for controlling concrete slurry to enter the feeding tank, the air inlet valve is arranged at the upper end of the feeding tank and used for controlling high-pressure air to enter the feeding tank, and the conveying pipe is arranged at the lower end of the feeding tank and used for conveying the slurry. When a filling point is suitable for gravity self-flowing conveying filling, the bell valve is opened, the air inlet valve is closed, the concrete slurry enters the feeding tank through a bell valve hopper, the slurry is conveyed to a filling area through the conveying pipe under the action of gravity, and therefore gravity self-flowing conveying of the slurry is achieved. When the slurry can not be conveyed in a self-flowing mode, the bell valve is closed, the air inlet valve is opened, the concrete slurry is conveyed to the filling point under the action of the high-pressure air, and therefore the pneumatic conveying of the slurry is achieved. The mine under-shaft slurry filling equipment integrates gravity self-flowing conveying and pneumatic conveying, and has the advantages of being simple in equipment, strong in conveying capacity, long in conveying distance, small in investment, low in requirement on concrete proportion and grain size of sand stones, and the like.

Description

A kind of mine down-hole slurry stowage unit
Technical field
The present invention relates to a kind of equipment that filling is carried out in the mine down-hole goaf, specially refer to a kind of employing flow by gravity and carry with two kinds of methods of strength conveying and combine, the cementing properties slurry is filled to the stowage unit of underground goaf.
Technical background
At present, in the mining operation, the exploitation of subterranean resource constantly destroys underground original material and forms form, underground water flow field, stress of primary rock field isoequilibrium, and forms Goaf Area.When the process of mining operations did not exceed the control range of setting, its operation process was safe; Out of control when the process of mining operations, when exceeding the control range of setting, will occur to pour in down-hole, the Mine safety accidents such as pressure activity on a large scale such as roof fall, gushing water, surface subsidence, mud-rock flow or surface water.The generation of these security incidents all has close contacting with the existence in goaf, if in mining operations, high-quality filling operation is carried out in the goaf, above-mentioned security incident can obtain effective prevention and control, therefore, most of mines in the ore extraction process along with the propelling of stope, progressively use the casting resin bashing, ensure carrying out smoothly of ore extraction work.
The situation such as desired loss late when the mine generates angle, ore adjoining rock stability situation and mining according to ore body metamorphosis complexity, orebody thickness, ore body, can utilize barren rock in mining process, select the directly bashing such as factory's tailings, smeltery's slag the less demanding situation of filling, the situation that filling is had relatively high expectations need to adopt the cementing properties slurry to carry out filling to the goaf, for example adopts cement or cement substitute and desliming tailings or sandstone formulated concrete filling goafs.
Adopt the carrying method of cementing properties slurry bashing that the methods such as flow by gravity conveying, concrete pump conveying, scraper conveying are arranged.The flow by gravity conveying is less demanding to concrete mortar proportioning and gravel size, but must possess two prerequisites: 1, concrete flowability is better; 2, filling system has suitable stowing gradient, otherwise some goaf does not reach the filling requirement.It is stricter to the requirement of concrete proportioning and gravel size that concrete pump is carried, and long-pending large, the serious wear of device body investment, care and maintenance difficulty.The scraper transportation work is simple and easy, and system works is reliable, but need to be with concrete conveyance filling point, and fed distance is short, and labour intensity is large.
Summary of the invention
For the cementing properties slurry efficiently is transported to the filling area fast, the invention provides a kind of adopt flow by gravity to carry to combine with two kinds of methods of strength conveying the cementing properties slurry is filled to the stowage unit of underground goaf.
The technical solution adopted for the present invention to solve the technical problems is: the clock valve is arranged on head tank by flange and enters head tank for controlling concrete mortar.The operating principle of clock valve is: when rack-mount cylinder piston rod and bell piston under the high pressure gas effect move downward, the clock valve is opened, and slurry can flow into head tank; When cylinder piston rod and bell piston under the high pressure gas effect moved up to the sealing ring position, the clock valve cut out, and stoped slurry to flow into head tank.Two ends, head tank up and down are hemisphere, the centre is cylindrical pressure vessel, the head tank upper end is provided with charging aperture, connect with the clock valve by flange, admission valve and air inlet pipe are installed on the hemisphere of head tank upper end are used for controlling high pressure gas and enter head tank, in the head tank lower end, the conveying that conveyance conduit is used for the cementing properties slurry is installed.
The operating principle of this slurry stowage unit is: when the filling point is suitable for flow by gravity conveying filling, the clock valve is opened, admission valve cuts out, concrete mortar flows into head tank by clock valve hopper, slurry is delivered to the filling area by carrier pipe under the effect of weight own, realize that the flow by gravity of concrete mortar is carried.If the goaf level is distant, the concrete mortar that enters in head tank and carrier pipe can not flow automatically, just concrete mortar can not be transported to the filling point, should immediately the clock valve cut out when above-mentioned situation occurring, cut off concrete mortar and flow into the clock valve, then open admission valve, gases at high pressure enter in airtight head tank, concrete mortar in conveyance conduit and head tank is transported to the filling point under the high pressure gas effect, realizes that the strength of concrete mortar is carried.
The present invention is that flow by gravity is carried with two kinds of methods of strength conveying and combined, have that equipment is simple, conveying capacity is large, fed distance is long, small investment, to the advantage such as less demanding of concrete proportioning and gravel size.
Below in conjunction with drawings and Examples, patent of invention is further illustrated.
Description of drawings
Fig. 1 is theory structure schematic diagram of the present invention.
Fig. 2 is clock valve arrangement schematic diagram of the present invention.
Specific embodiments
In Fig. 1,1, the clock valve, 2, head tank, 3, air inlet pipe, 4, admission valve, 5, carrier pipe, 13, mud, 14, the filling field.
In Fig. 1, clock valve (1) links by flange and head tank (2) charging aperture, and admission valve (4) is arranged on head tank (2) top by air inlet pipe (3), and carrier pipe (5) is arranged on head tank (2) lower end.
In Fig. 2,6, cylinder, 7, piston rod, 8, support, 9, hopper, 10, sealing ring, 11, bell piston, 12 valve seats.
In Fig. 2, cylinder (6) connects with support (8) by flange, and under the effect of high pressure gas, cylinder (6) drives bell piston (11) by piston rod (7) and moves up and down, and is used for opening and closing clock valve (1); Support (8) is arranged in hopper (9), and hopper (9) links by flange and valve seat group (12), and places sealing ring (10) in the middle of two flanges.

Claims (3)

1. mine down-hole slurry stowage unit, it is comprised of clock valve, head tank, air inlet pipe, admission valve and carrier pipe, it is characterized in that the clock valve is arranged on head tank, be used for controlling concrete mortar and enter head tank, in the head tank upper end, admission valve and air inlet pipe are installed, be used for controlling high pressure gas and enter head tank, at head tank lower end installation carrier pipe, be used for slurry and carry; When the filling point is suitable for flow by gravity conveying filling, the clock valve is opened, admission valve cuts out, and concrete mortar flows into head tank by clock valve hopper, and by carrier pipe, concrete mortar is delivered to the filling area, realize the conveying of slurry flow by gravity, when carrying if can not flow automatically, close the clock valve, open admission valve, concrete mortar is transported to the filling point under the high pressure gas effect, realizes the conveying of slurry strength.
2. mine down-hole slurry stowage unit according to claim 1, it is characterized in that two ends, head tank up and down are hemisphere, the centre is cylindrical pressure vessel, and the upper end is provided with charging aperture and connects with the clock valve, upper right side is provided with admission valve and air inlet pipe, and conveyance conduit is installed in the lower end.
3. mine down-hole slurry stowage unit according to claim 1, it is characterized in that the clock valve is comprised of pneumatic linear actuator, piston rod, support, hopper, sealing ring, bell piston and valve seat, pneumatic linear actuator connects with support by flange, under the effect of high pressure gas, pneumatic linear actuator drives bell piston by piston rod and moves up and down, and is used for opening and closing clock valve, and support is arranged in hopper, hopper connects by flange and valve seat set associative, and places sealing ring in the middle of two flanges.
CN2012103939703A 2012-10-17 2012-10-17 Mine under-shaft slurry filling equipment Pending CN103174456A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012103939703A CN103174456A (en) 2012-10-17 2012-10-17 Mine under-shaft slurry filling equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012103939703A CN103174456A (en) 2012-10-17 2012-10-17 Mine under-shaft slurry filling equipment

Publications (1)

Publication Number Publication Date
CN103174456A true CN103174456A (en) 2013-06-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012103939703A Pending CN103174456A (en) 2012-10-17 2012-10-17 Mine under-shaft slurry filling equipment

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CN (1) CN103174456A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104310065A (en) * 2014-10-08 2015-01-28 中南大学 Deep-sea mining valve control type clean water pump ore hydraulic lifting equipment
CN104564134A (en) * 2014-12-07 2015-04-29 金川集团股份有限公司 Filling method for mine worked-out area

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1575256A (en) * 2001-10-26 2005-02-02 皮奇尼铝公司 Advertising system and storage medium
CN201990260U (en) * 2011-03-25 2011-09-28 成都化工股份有限公司 Positive-pressure silicon powder delivering device
CN202132070U (en) * 2011-07-11 2012-02-01 杭州国电大坝安全工程有限公司 Portable grout injection system for filling and sealing pores of mines
CN202181116U (en) * 2011-08-16 2012-04-04 黑龙江立高科技开发有限公司 Pneumatic mixing and conveying device for powder material
CN102505835A (en) * 2011-10-20 2012-06-20 杭州山海机械有限公司 Dry-mixed mortar pneumatic-conveying stirring and spraying device
CN202297640U (en) * 2011-10-21 2012-07-04 中冶南方工程技术有限公司 Pneumatic multi-stage conveying system for blast furnace gas ash

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1575256A (en) * 2001-10-26 2005-02-02 皮奇尼铝公司 Advertising system and storage medium
CN201990260U (en) * 2011-03-25 2011-09-28 成都化工股份有限公司 Positive-pressure silicon powder delivering device
CN202132070U (en) * 2011-07-11 2012-02-01 杭州国电大坝安全工程有限公司 Portable grout injection system for filling and sealing pores of mines
CN202181116U (en) * 2011-08-16 2012-04-04 黑龙江立高科技开发有限公司 Pneumatic mixing and conveying device for powder material
CN102505835A (en) * 2011-10-20 2012-06-20 杭州山海机械有限公司 Dry-mixed mortar pneumatic-conveying stirring and spraying device
CN202297640U (en) * 2011-10-21 2012-07-04 中冶南方工程技术有限公司 Pneumatic multi-stage conveying system for blast furnace gas ash

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104310065A (en) * 2014-10-08 2015-01-28 中南大学 Deep-sea mining valve control type clean water pump ore hydraulic lifting equipment
CN104564134A (en) * 2014-12-07 2015-04-29 金川集团股份有限公司 Filling method for mine worked-out area

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Application publication date: 20130626