CN105240048A - Air filling method based on paste filling - Google Patents

Air filling method based on paste filling Download PDF

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Publication number
CN105240048A
CN105240048A CN201510701243.2A CN201510701243A CN105240048A CN 105240048 A CN105240048 A CN 105240048A CN 201510701243 A CN201510701243 A CN 201510701243A CN 105240048 A CN105240048 A CN 105240048A
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China
Prior art keywords
filling
paste
air
air bag
cloth
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CN201510701243.2A
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CN105240048B (en
Inventor
王玉成
郭忠平
牟文强
王昌祥
王建行
王凯
杜兆文
李硕
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Shandong University of Science and Technology
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Shandong University of Science and Technology
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Publication of CN105240048A publication Critical patent/CN105240048A/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F15/00Methods or devices for placing filling-up materials in underground workings
    • E21F15/08Filling-up hydraulically or pneumatically
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F15/00Methods or devices for placing filling-up materials in underground workings
    • E21F15/02Supporting means, e.g. shuttering, for filling-up materials
    • E21F15/04Stowing mats; Goaf wire netting; Partition walls

Abstract

The invention discloses an air filling method based on paste filling. The method comprises the following steps that: 1, air bags are laid on the ground of a goaf, and then, a separating wall is installed for separating the space into a sealed filling space; 2, a material distributing pipe is arranged through a material pipe installing hole of the separating wall, and an air inflating pipe of each air bag is connected with a high-pressure air pump; 3, when the paste filling ground height reaches 20 to 30cm, the air bag is inflated, so that the paste filling and the air bag inflation are maintained to be synchronously performed; when the top surface filled with paste touches the top of the filling space, the paste filling is completed; and the air bag is continuously inflated until air pressure in the air bag reaches the pressure of overlying rock, the high-pressure air pump is closed, and the air filling is completed; and 4, the first step, the second step and the third step are repeated for performing a next round of filling. The air filling method has the advantages that on the basis of paste filling, an air filling process is added; the insufficient top filling quantity can be effectively reduced; the filling ratio is improved; filling materials are saved; and the supporting strength of a filling body is ensured.

Description

A kind of gas filling method based on paste body filling
Technical field
The present invention relates to a kind of gas filling method, be specifically related to a kind of gas filling method based on paste body filling.
Background technology
Filling in mine is needs for meeting mining industry and grows up, abroad the history of existing more than 100 year.Filling mining is good at Poland, German effect, the coal mining output of hydraulic filling is adopted to account for about 80% of national coal mining underbuildings amount, filler normally river sand, gangue and the fly ash in electric power plant etc. of use when Poland mines under cities and towns and industrial building; The states such as Britain, France, Belgium have employed filling-up pneumatically method all to some extent.Through the development of last 100 years, the development of external Cut-and-fill Mining Technology mainly experienced by following four developing stage: waste material, to process for the purpose of solid waste, is directly sent into goaf by (1); (2) hydraulic filling; (3) cemented backfilling technology is developed; (4) highly concentrated cemented fill technology is developed.
The development of domestic filling mining technology also experienced by the four-stage similar with development abroad: (1) is to process the barren rock dry stowing for the purpose of solid waste; (2) hydraulic filling technique is adopted; (3) application and research and development mine tailing cemented backfilling technology; (4) domestic beginning develops high dense fill technology, as technology such as paste body filling, stone sand plasm glue jointed filling and Total tailing consolidated fills.
Summary of the invention
For the defect existed in above-mentioned prior art, the object of the present invention is to provide a kind of gas filling method based on paste body filling, the method can improve filling effect effectively, ensures the intensity of obturation, saves filler.
To achieve these goals, the technical solution of employing is in the present invention:
Based on a gas filling method for paste body filling, comprise the steps,
The first step, after coal cutting completes, lays air bag along on work plane direction, then arranges divider wall on the ground in goaf, and goaf is separated into a closed filling space, air bag is positioned at filling space.
Second step, arranges cloth tube by the material pipe installing hole on divider wall top, and the grout outlet of cloth tube aims at filling space, and cloth tube is connected with feeding engine.The gas tube of air bag, after the tracheae installing hole extraction of divider wall bottom, is connected with high-pressure pump.
3rd step, starts feeding engine, is delivered in filling space by cloth tube by lotion, during paste body filling ground level to 20 ~ 30cm in space to be filled, start to start high-pressure pump, by high-pressure pump to airbag aeration, and keep paste body filling and airbag aeration synchronously to carry out.When the end face of lotion to be filled touches top, filling space, stop paste body filling, and by the material pipe installing hole shutoff of divider wall.Subsequently, continue to airbag aeration, until when air pressure in air bag reaches the pressure of overlying rock, to close high-pressure pump, and seal the gas tube of air bag, gas tube is pushed back in filling space, then blocks the tracheae installing hole of divider wall.After lotion solidifies completely, remove divider wall, complete this round paste body filling.
Preferably, above-mentioned steps also comprises the 4th step, repeats the first step, second step and the 3rd step, enters next one paste body filling.
Preferably, described cloth tube comprises a multiple cloth tube and multiple No. two cloth tubes, interval radial direction arrangement successively between each cloth tube and each No. two cloth tubes.All cloth tubes and all No. two cloth tubes carry out paste body filling in turn, and the switching time of filling in turn should control at 20 ~ 30min.
Preferably, described air bag has multiple, leaves interval between all air bags, and in being dislocatedly distributed.Tracheae installing hole also has multiple, the gas tube one_to_one corresponding of tracheae installing hole and all air bags.
Preferably, described divider wall is formed by polylith template splicing, and the outside of template is fixed by support.
Preferably, described divider wall has polylith template splicing to form, and the outside of template is fixed by support.
By adopting preceding solution, Advantageous Effects of the present invention is: the method increases gas filling technique on the basis of paste body filling, can effectively reduce filling and owe to connect top amount, improve pack completeness, save filler, ensure the support strength of obturation.Solve the difficult problem that mine filling needs to consume a large amount of materials, and save filling cost, meet the environmental protection theory of " low consumption, high recovery ".
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of a certain state before filling of the present invention.
Fig. 2 is the structural principle schematic diagram of a certain state in stowing operation of the present invention.
Fig. 3 is the structural principle schematic diagram of a certain state after filling of the present invention.
Fig. 4 is the structural principle schematic diagram that fill paste of the present invention solidifies rear a certain state.
Fig. 5 is the structural principle schematic diagram of certain part in Fig. 1 mode, and what illustrate is divider wall and cloth tube.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail:
Composition graphs 1 to Fig. 5, a kind of gas filling method based on paste body filling, adopts following steps,
The first step, after coal cutting completes, lays air bag 1 along on work plane direction, then arranges divider wall 2 on the ground in goaf, and the upper end of divider wall 2 is near the top in goaf, and goaf is separated into a closed filling space, air bag 1 is positioned at filling space.Described divider wall 2 is formed by polylith template splicing, and the outside of template is fixed by support.
Second step, arrange cloth tube by the material pipe installing hole on divider wall 2 top, described cloth tube comprises a multiple cloth tube 3 and multiple No. two cloth tubes 4, interval radial direction arrangement successively between each cloth tube 3 and each No. two cloth tubes 4.All cloth tubes 3 and all No. two cloth tubes 4 carry out paste body filling in turn, and the switching time of filling in turn should control at 20 ~ 30min, in order to avoid cause cloth tube to block because lotion solidifies.The grout outlet of all cloth tubes aims at filling space, and all cloth tubes 3 are connected with a feeding engine, and all No. two cloth tubes 4 are connected with one another feeding engine.
Described material pipe installing hole has multiple, material pipe installing hole and all cloth tube one_to_one corresponding.The air bag 1 of the bottom of filling space has multiple, leaves interval between all air bags 1, and in being dislocatedly distributed.The tracheae installing hole of the bottom of divider wall 2 also has multiple, gas tube 5 one_to_one corresponding of tracheae installing hole and all air bags 1.The gas tube 5 of each air bag 1, after the extraction of divider wall 2 lower windpipe installing hole, is connected with high-pressure pump.
3rd step, starts feeding engine, is delivered in filling space by cloth tube by lotion, during paste body filling ground level to 20 ~ 30cm in space to be filled, start to start high-pressure pump, inflated to air bag 1 by high-pressure pump, and keep paste body filling and airbag aeration synchronously to carry out.When the end face of lotion to be filled touches top, filling space, stop paste body filling, and by all material pipe installing holes shutoff on divider wall 2 top.Subsequently, continue to inflate to air bag 1 until when air pressure in air bag 1 reaches the pressure of overlying rock, close high-pressure pump, and seal the gas tube 5 of all air bags 1, gas tube 5 is pushed back in filling space, then blocks the tracheae installing hole of isolation 2 wall.After lotion to be filled solidifies completely, form the closed cavity of high pressure in the inside of lotion, remove divider wall, complete this round paste body filling.
Also comprise the 4th step in above-mentioned steps, repeat the first step, second step and the 3rd step, carry out next one paste body filling.
Air bag and paste body filling effectively combine by the present invention, effectively reduce and owe to connect top amount, improve pack completeness, save a large amount of fillers.Under cost-effective prerequisite, separate the coal resources of releasing more " three times " and overstocking, improve resource recovery, and the impact reduced surface buildings, railway and water body, reach the object of sustainable development, to three unders in coal mining, there is profound significance, striding forward a crucial step to realizing gas filling exploitation simultaneously.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited in above-mentioned citing, and the change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement also should belong to protection scope of the present invention.

Claims (5)

1., based on a gas filling method for paste body filling, it is characterized in that, comprise the steps,
The first step, after coal cutting completes, lays air bag along on work plane direction, then arranges divider wall on the ground in goaf, and goaf is separated into a closed filling space, air bag is positioned at filling space;
Second step, arranges cloth tube by the material pipe installing hole on divider wall top, and the grout outlet of cloth tube aims at filling space, and cloth tube is connected with feeding engine; The gas tube of air bag, after the tracheae installing hole extraction of divider wall bottom, is connected with high-pressure pump;
3rd step, starts feeding engine, is delivered in filling space by cloth tube by lotion, during paste body filling ground level to 20 ~ 30cm in space to be filled, start to start high-pressure pump, by high-pressure pump to airbag aeration, and keep paste body filling and airbag aeration synchronously to carry out; When the end face of lotion to be filled touches top, filling space, stop paste body filling, and by the material pipe installing hole shutoff of divider wall; Subsequently, continue to airbag aeration, until when air pressure in air bag reaches the pressure of overlying rock, to close high-pressure pump, and seal the gas tube of air bag, gas tube is pushed back in filling space, then blocks the tracheae installing hole of divider wall; After lotion solidifies completely, remove divider wall, complete this round paste body filling.
2. a kind of gas filling method based on paste body filling according to claim 1, is characterized in that, also comprise the 4th step, repeats the first step, second step and the 3rd step, enters next one paste body filling.
3. a kind of gas filling method based on paste body filling according to claim 1, is characterized in that, described cloth tube comprises a multiple cloth tube and multiple No. two cloth tubes, interval radial direction arrangement successively between each cloth tube and each No. two cloth tubes; All cloth tubes and all No. two cloth tubes carry out paste body filling in turn, and the switching time of filling in turn should control at 20 ~ 30min.
4. a kind of gas filling method based on paste body filling according to claim 1, it is characterized in that, described air bag has multiple, leaves interval between all air bags, and in being dislocatedly distributed; Tracheae installing hole also has multiple, the gas tube one_to_one corresponding of tracheae installing hole and all air bags.
5. a kind of gas filling method based on paste body filling according to claim 1, it is characterized in that, described divider wall is formed by polylith template splicing, and the outside of template is fixed by support.
CN201510701243.2A 2015-10-26 2015-10-26 A kind of gas filling method based on paste body filling Active CN105240048B (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106382118A (en) * 2016-11-30 2017-02-08 长沙矿山研究院有限责任公司 Separation-wall-free initiative top filling wall type filling mining method
CN106979033A (en) * 2017-05-09 2017-07-25 山东科技大学 A kind of high goaf paste body filling construction method of thick seam large mining
CN106988780A (en) * 2017-05-09 2017-07-28 山东科技大学 A kind of girdle goaf paste body filling construction method
CN107965349A (en) * 2017-11-23 2018-04-27 长沙矿山研究院有限责任公司 Water consolidates mixed slurry loading precompressed process for dewatering and coagulating
CN108412540A (en) * 2018-03-08 2018-08-17 山东科技大学 A kind of expansion filling method based on waste filling
CN110566269A (en) * 2019-08-19 2019-12-13 西北矿冶研究院 Truss type filling method for underground goaf

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Publication number Priority date Publication date Assignee Title
CN106382118A (en) * 2016-11-30 2017-02-08 长沙矿山研究院有限责任公司 Separation-wall-free initiative top filling wall type filling mining method
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CN106979033A (en) * 2017-05-09 2017-07-25 山东科技大学 A kind of high goaf paste body filling construction method of thick seam large mining
CN106988780A (en) * 2017-05-09 2017-07-28 山东科技大学 A kind of girdle goaf paste body filling construction method
CN106988780B (en) * 2017-05-09 2018-12-14 山东科技大学 A kind of girdle goaf paste body filling construction method
CN107965349A (en) * 2017-11-23 2018-04-27 长沙矿山研究院有限责任公司 Water consolidates mixed slurry loading precompressed process for dewatering and coagulating
CN107965349B (en) * 2017-11-23 2019-05-31 长沙矿山研究院有限责任公司 Water consolidates mixed slurry load precompressed process for dewatering and coagulating
CN108412540A (en) * 2018-03-08 2018-08-17 山东科技大学 A kind of expansion filling method based on waste filling
CN110566269A (en) * 2019-08-19 2019-12-13 西北矿冶研究院 Truss type filling method for underground goaf

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Inventor after: Wang Changxiang

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