CN109882238A - A kind of coal mine gob polymer and spoil mixed filling system and method - Google Patents
A kind of coal mine gob polymer and spoil mixed filling system and method Download PDFInfo
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- CN109882238A CN109882238A CN201910104581.6A CN201910104581A CN109882238A CN 109882238 A CN109882238 A CN 109882238A CN 201910104581 A CN201910104581 A CN 201910104581A CN 109882238 A CN109882238 A CN 109882238A
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Abstract
A kind of coal mine gob polymer and spoil mixed filling system, including spoil transportation system, mixed with polymers system and sprinkling system, stirring system includes dynamical system and mixing part, sprinkling system includes spray head and spray head regulating system, and spray head is fixed on the top of bottom-dump scratch board conveyor discharge port.A kind of coal mine gob polymer and spoil mixed filling systems approach, comprising steps of arrangement filling coal mining hydraulic support, polymer and spoil mixed filling system are installed, spoil transportation system, mixed with polymers system and sprinkling system is opened and realizes that the mixing of spoil and polymer is filled out with i.e. mixed.A kind of coal mine gob polymer and spoil mixed filling system and method for the invention, filling velocity is fast, does not influence drawing speed, overcomes the problem of spoil and mixed with polymers filling transport hardly possible, filling effect is good, has broad application prospects in coal industry.
Description
Technical field
The present invention relates to solid fillings to mine, polymeric material field, and in particular to a kind of coal mine gob polymer with
Spoil mixed filling system and method.
Background technique
In recent years, with the continuous improvement of coal resources continually developed with production technique, solid filling coal-mining technique is
One of the key technology of coal is pressed as recycling " under three ".Traditional waste filling has that accumulation voidage is big, owes to connect that top amount is big, fills
Fill out the problems such as effect is poor, the length of service is short.The poly- materials such as the polymer adhesive proposed during diaster prevention and control, can cooperate cash
Stone carries out goaf filling, but there are problems that transport difficult after spoil and mixed with polymers.Therefore, it is poly- that there is an urgent need to one kind
Close the novel filling system and method that object is mixed with spoil.
Summary of the invention
The purpose of the present invention is to provide a kind of coal mine gob polymer and spoil mixed filling system and method, with reality
Existing spoil and the i.e. mixed of polymer are filled out.
For achieving the above object, technical solution of the present invention is specific as follows:
A kind of coal mine gob polymer and spoil mixed filling system, including spoil transportation system, mixed with polymers system
System and sprinkling system, spoil transportation system include spoil transporter, reclaiming conveyer and bottom-dump the scraper plate transport successively to connect
Machine；Mixed with polymers system is mobile mixer truck, has feed bin, agitator tank, stirring system and compressed-air system on mobile mixer truck,
Feed bin is two, and the pure and mild isocyanates of polyester polyols is respectively provided in two feed bins, and feed bin is located above agitator tank, feed bin lower part
With hopper discharge port, hopper discharge port is protruded into agitator tank, and stirring system includes dynamical system and mixing part, mixing part it is upper
End is connected with dynamical system, and mixing part is located in agitator tank, and compressed-air system is connected by pneumatic tube with the top of agitator tank, sprays
System includes spray head and spray head regulating system, and one end of haul pipe is connected with the bottom of agitator tank, the other end of haul pipe and spray
Head is connected, and spray head is fixed on the top of bottom-dump scratch board conveyor discharge port.
As further preferred technical solution, there is hopper above the feed bin, there is feed bin control to open for hopper lower part
It closes.
As further preferred technical solution, there is discharge port control valve on the hopper discharge port.
As further preferred technical solution, the dynamical system include the driving motor being sequentially connected, universal driving shaft and
The upper end of drive joint, mixing part is fixed on drive joint.
As further preferred technical solution, the haul pipe is PA armouring nylon hose, internal diameter 20mm, outer diameter
25mm。
As further preferred technical solution, the volume ratio of the polyester polyol and isocyanates is 1:1~1:
1.2, polymer volume is 10%~12%.
As further preferred technical solution, the spray head regulating system includes position control and spray head control valve,
The porous nozzle is automatic adjustment porous nozzle, and automatic adjustment porous nozzle is located at the lower end of position control, and position is adjusted
The upper end of device is hinged on after goaf filling hydraulic support on top beam, and spray head control valve is located on the haul pipe.
As further preferred technical solution, also there is intelligent-induction controller, spoil transporter on mobile mixer truck
It is upper that there is weighing belt, spray head control valve and weighing belt to be connected by radio transmitting device with intelligent-induction controller.
A kind of coal mine gob polymer and spoil mixed filling method, comprising the following steps:
S1: multiple six columns brace type filling coal mining hydraulic supports are arranged in working face, installation polymer is mixed with spoil to be filled
Fill out system, bottom-dump scratch board conveyor is located at filling operation face end, by the discharge port on bottom-dump scratch board conveyor relative to
Spoil transporter number consecutively from the distant to the near；
S2: opening spoil transportation system, mixed with polymers system and sprinkling system, when bottom-dump drag conveyor is by spoil
Pass through intelligent-induction controller when being transported to the position of No. 3 discharge ports and opens No. 1, No. 2, the spray head control above No. 3 discharge ports
Valve is sprayed；
S3: after being full of spoil below No. 1, No. 2, No. 3 discharge ports, the spray head control of closing 1, No. 3 discharge ports and top
Valve processed opens simultaneously the spray head control valve of No. 4, No. 5 discharge ports and top, and to the filling material under No. 1, No. 2, No. 3 discharge ports
It is tamped in time, it is that compacting process supplies polymer and spoil that the porous nozzle of No. 2 discharge ports and top, which continues discharging sprinkling,；
S4: after No. 2, No. 4, No. 5 discharge port retrofillings are expired, the spray head control valve of closing 2, No. 5 discharge ports and top,
Open simultaneously No. 6, No. 7 discharge ports, the filling material under No. 2, No. 4, No. 5 discharge ports tamped in time, No. 4 discharge ports and on
It is that compacting process supplies polymer and spoil that the porous nozzle of side, which continues discharging sprinkling, circuits sequentially, completes entire goaf
Filling.
As further preferred technical solution, polymer fountain height is controlled with waste filling efficiency by intelligent-induction
Device realizes intelligent linkage control, governing equation a=kb
Wherein, a is polymer fountain height, unit t/h；B is waste filling efficiency, unit t/h；K is control proportionality coefficient,
0.1≤k≤0.25。
Compared with prior art, beneficial effects of the present invention:
A kind of coal mine gob polymer and spoil mixed filling system and method for the invention, device structure is simple, tears open
Dress convenience, simple process, filling velocity are fast, do not influence drawing speed, overcome spoil and hardly possible is transported in mixed with polymers filling
Problem, filling effect are good；Sprinkling system is controlled by radio signal, meets the requirement of safe and efficient production, in coal industry
It has broad application prospects.
Detailed description of the invention
Fig. 1 is working face layout drawing；
Fig. 2 is sprinkling system structural schematic diagram；
Fig. 3 is the structural schematic diagram of mobile mixer truck；
Fig. 4 is the top view of mobile mixer truck；
In Fig. 1-4: 1- automatically adjusts porous nozzle, 2- position control, 3- haul pipe, 4- spray head control valve, 5- shifting certainly
Formula redoiming conveyor, 6- spoil belt conveyor, 7- hopper, 8- feed bin control switch, 9- feed bin A, 10- feed bin B, 11- calm the anger
System, 12- driving motor, 13- universal driving shaft, 14- are driven rotary head, the mixing part 15-, 16- pneumatic tube, 17- barometer, 18- pressure
Control valve, 19- mobile mixer truck, 20- bracket, 21- hopper discharge port, 22- discharge port control valve, 23- agitator tank, 24- intelligence
Induction controller, 25- discharge port, 26- belt conveyor, the goaf 27-, 28- bottom-dump drag conveyor, 29- filling are hydraulic
Bracket.
Specific embodiment:
The present invention is described further with reference to the accompanying drawings.
Embodiment
As shown in Figs 1-4, a kind of coal mine gob polymer and spoil mixed filling system, including spoil transportation system,
Mixed with polymers system and sprinkling system, spoil transportation system include the spoil ribbon conveyer 6 successively to connect, automatic moving type reprinting
Transporter 5 and bottom-dump scratch board conveyor 28.Mixed with polymers system is mobile mixer truck 19, and moving mixer truck 19 can be the bottom of with
Formula drag conveyor 28 is unloaded to move together.There is feed bin (9,10), agitator tank 23, stirring system on mobile mixer truck 19 and calm the anger
System 11.Feed bin is two, is respectively provided with the pure and mild isocyanic acid of polyester polyols in two feed bins of respectively feed bin A9 and feed bin B10
Ester.Polyester polyol and the volume ratio of isocyanates are 1:1~1:1.2, and polymer volume is 10%~12%, preferably,
Polyester polyol and the volume ratio of isocyanates are 1:1.1, and polymer volume is 10%.Feed bin (9,10) is located on agitator tank 23
Side, feed bin lower part have hopper discharge port 21, and hopper discharge port 21 protrudes into agitator tank 23, have discharging on hopper discharge port 21
Mouth control valve 22.There is hopper 7,7 lower part of hopper has feed bin control switch 8 above feed bin.Stirring system includes dynamical system
With mixing part 15, dynamical system includes the driving motor 12, universal driving shaft 13 and drive joint 14 being sequentially connected, mixing part 15 it is upper
End is fixed on drive joint 14.Mixing part 15 is located in agitator tank 23, and having on mixing part 15 is helical form blade.It calms the anger and is
System 11 is connected by pneumatic tube 16 with the top of agitator tank 23.Sprinkling system includes spray head and spray head regulating system, haul pipe 3
One end is connected with the bottom of agitator tank 23, and the other end of haul pipe 3 is connected with spray head, and spray head is arranged in pairs at bottom-dump scraper plate fortune
The top of defeated machine discharge port 25.Preferably, spray head regulating system includes position control 2 and spray head control valve 4, spray head is more
Porous nozzle 1 is automatically adjusted, spray head control valve 4 is located on haul pipe 3, and haul pipe 3 is PA armouring nylon hose, and internal diameter is
20mm, outer diameter 25mm, automatic adjustment porous nozzle 1 are located at the lower end of position control 2, and the upper end of position control 2 is hinged on
After goaf filling hydraulic support 29 on top beam, the adjustable automatic adjustment porous nozzle 1 of position control 2 is apart from discharge port 25
Highly.It is 10~15cm away from 25 height of discharge port, two spray heads injection angle can automatically adjust according to packed height, adjust model
Enclose is 50 °~90 °.
Also there is intelligent-induction controller 24 on mobile mixer truck 19, there is weighing belt, belt on spoil ribbon conveyer 6
Scale to monitor waste filling efficiency automatically.Spray head control valve 4 and weighing belt are felt by radio transmitting device and intelligence
Controller 24 is answered to be connected, intelligent-induction controller 24 passes through regulation spray head control valve according to the waste filling efficiency that weighing belt obtains
4 realize that the intelligent linkage of polymer fountain height and waste filling efficiency controls.
Embodiment 2
The method filled using the polymer in embodiment 1 with spoil mixed filling system, the specific steps are as follows:
1) by taking certain mine as an example, the long 140m of working face, average thickness 4.2m, 5~8 ° of mean obliquity, gas emission is low,
94 six column brace type filling coal mining hydraulic supports, installation polymer and spoil mixed filling system are arranged in working face, and bottom is unloaded
Formula scratch board conveyor is located at filling operation face end, by the discharge port on bottom-dump scratch board conveyor relative to spoil transporter by
Remote and close number consecutively is No. 1-94；Filling operation face tunnel specification and safety are considered, by mobile polymer mixer truck
19 are arranged in the position of filling operation face end 4m；Polyester polyol and isocyanic acid are separately added into feed bin A9, feed bin B10
Ester, the two ratio be 1:1.1, volume 10%, and in time open agitator tank be stirred；
2) connection haul pipe 3 and automatic adjustment porous nozzle 1, open compressed-air system 11 and automatic moving type redoiming conveyor 5,
Open No. 1, No. 2, No. 3 discharge ports；
3) it when spoil is transported to the position of No. 3 discharge ports by bottom-dump drag conveyor 28, i.e., is controlled by intelligent-induction
Device 24 open No. 1, No. 2, the spray head control switch 4 above No. 3 discharge ports carries out the sprinkling of polymeric blends, while passing through intelligence
Energy induction controller realizes that the intelligent linkage of polymer fountain height and waste filling efficiency controls, governing equation a=kb
Wherein, a is polymer fountain height, unit t/h；B is waste filling efficiency, unit t/h；K is control proportionality coefficient,
0.1≤k≤0.25；
4) after being full of spoil below No. 1, No. 2, No. 3 discharge ports, the spray head control of closing 1, No. 3 discharge ports and top
It switchs (4), the spray head control switch of No. 4, No. 5 discharge ports and top is opened simultaneously, at this time under No. 1, No. 2, No. 3 discharge ports
Filling material is tamped in time, and it is that compacting process supplies polymer that the porous nozzle of No. 2 discharge ports and top, which continues discharging sprinkling,
And spoil, after No. 2, No. 4, No. 5 discharge port retrofillings are expired, the spray head control switch of closing 2, No. 5 discharge ports and top, together
When open No. 6, No. 7 discharge ports, the filling material under No. 2, No. 4, No. 5 discharge ports is tamped in time, No. 4 discharge ports and top
Porous nozzle to continue discharging sprinkling be that compacting process supplies polymer and spoil, circuit sequentially and completed until under No. 94 discharge ports
Compacting, in cycles, completes the filling in entire goaf.
Since the mine geological conditions is preferable, the spoil conveying capacity of spoil belt conveyor 6 is larger, in order to improve filling speed
Degree, adjustment automatic adjustment porous nozzle 1 are 15cm, the injection folder of two automatic adjustment porous nozzle 1 of adjustment away from 25 height of discharge port
Angle is 70 °.
Claims (10)
1. a kind of coal mine gob polymer and spoil mixed filling system, which is characterized in that including spoil transportation system, polymerization
Object hybrid system and sprinkling system, spoil transportation system include spoil transporter, reclaiming conveyer and the bottom-dump successively to connect
Scratch board conveyor；Mixed with polymers system is mobile mixer truck, have on mobile mixer truck feed bin, agitator tank, stirring system and
Compressed-air system, feed bin are two, are respectively provided with the pure and mild isocyanates of polyester polyols in two feed bins, feed bin is located on agitator tank
Side, feed bin lower part have hopper discharge port, and hopper discharge port protrudes into agitator tank, and stirring system includes dynamical system and stirring
The upper end in portion, mixing part is connected with dynamical system, and mixing part is located in agitator tank, and compressed-air system passes through pneumatic tube and agitator tank
Top is connected, and sprinkling system includes spray head and spray head regulating system, and one end of haul pipe is connected with the bottom of agitator tank, haul pipe
The other end be connected with spray head, spray head is fixed on the top of bottom-dump scratch board conveyor discharge port.
2. a kind of coal mine gob polymer according to claim 1 and spoil mixed filling system, which is characterized in that institute
Stating has hopper above feed bin, hopper lower part has feed bin control switch.
3. a kind of coal mine gob polymer according to claim 1 and spoil mixed filling system, which is characterized in that institute
Stating has discharge port control valve on hopper discharge port.
4. a kind of coal mine gob polymer according to claim 1 and spoil mixed filling system, which is characterized in that institute
Stating dynamical system includes the driving motor, universal driving shaft and drive joint being sequentially connected, and the upper end of mixing part is fixed on drive joint
On.
5. a kind of coal mine gob polymer according to claim 1 and spoil mixed filling system, which is characterized in that institute
Stating haul pipe is PA armouring nylon hose, internal diameter 20mm, outer diameter 25mm.
6. a kind of coal mine gob polymer according to claim 1 and spoil mixed filling system, which is characterized in that institute
The volume ratio for stating polyester polyol and isocyanates is 1:1~1:1.2, and polymer volume is 10%~12%.
7. -6 any a kind of coal mine gob polymer and spoil mixed filling system according to claim 1, feature
It is, the spray head regulating system includes position control and spray head control valve, and the porous nozzle is to automatically adjust porous spray
Head, automatic adjustment porous nozzle are located at the lower end of position control, and it is hydraulic that the upper end of position control is hinged on goaf filling
After bracket on top beam, spray head control valve is located on the haul pipe.
8. a kind of coal mine gob polymer according to claim 7 and spoil mixed filling system, which is characterized in that move
Also there is intelligent-induction controller on dynamic mixer truck, there is weighing belt on spoil transporter, spray head control valve and weighing belt pass through
Radio transmitting device is connected with intelligent-induction controller.
9. a kind of coal mine gob polymer and spoil mixed filling method, which comprises the following steps:
S1: multiple six columns brace type filling coal mining hydraulic supports, installation polymer and spoil mixed filling system are arranged in working face
System, bottom-dump scratch board conveyor is located at filling operation face end, by the discharge port on bottom-dump scratch board conveyor relative to spoil
Transporter number consecutively from the distant to the near；
S2: spoil transportation system, mixed with polymers system and sprinkling system are opened, when spoil is transported to by bottom-dump drag conveyor
Pass through when the position of No. 3 discharge ports intelligent-induction controller open No. 1, No. 2, the spray head control valve above No. 3 discharge ports into
Row sprinkling；
S3: after being full of spoil below No. 1, No. 2, No. 3 discharge ports, the spray head control valve of closing 1, No. 3 discharge ports and top,
Open simultaneously the spray head control valve of No. 4, No. 5 discharge ports and top, and to the filling material under No. 1, No. 2, No. 3 discharge ports in time into
It is that compacting process supplies polymer and spoil that the porous nozzle of row compacting, No. 2 discharge ports and top, which continues discharging sprinkling,；
S4: after No. 2, No. 4, No. 5 discharge port retrofillings are expired, the spray head control valve of closing 2, No. 5 discharge ports and top, simultaneously
No. 6, No. 7 discharge ports are opened, the filling material under No. 2, No. 4, No. 5 discharge ports is tamped in time, No. 4 discharge ports and top
It is that compacting process supplies polymer and spoil that porous nozzle, which continues discharging sprinkling, circuits sequentially, completes the filling in entire goaf.
10. a kind of coal mine gob polymer and spoil mixed filling method, which is characterized in that polymer fountain height is filled with spoil
That fills out efficiency realizes intelligent linkage control by intelligent-induction controller, and governing equation is
A=kb
Wherein, a is polymer fountain height, unit t/h；B is waste filling efficiency, unit t/h；K is to control proportionality coefficient, 0.1
≤k≤0.25。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910104581.6A CN109882238B (en) | 2019-02-01 | 2019-02-01 | Polymer and gangue mixed filling system and method for coal mine goaf |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910104581.6A CN109882238B (en) | 2019-02-01 | 2019-02-01 | Polymer and gangue mixed filling system and method for coal mine goaf |
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| Publication Number | Publication Date |
|---|---|
| CN109882238A true CN109882238A (en) | 2019-06-14 |
| CN109882238B CN109882238B (en) | 2020-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910104581.6A Active CN109882238B (en) | 2019-02-01 | 2019-02-01 | Polymer and gangue mixed filling system and method for coal mine goaf |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112672A (en) * | 2020-09-22 | 2020-12-22 | 中国矿业大学 | Gob-side entry retaining roadside support body construction method based on gangue cement-based material |
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| CN103939139A (en) * | 2014-04-25 | 2014-07-23 | 中国矿业大学 | Equipment matching method for solid-filling coal face of coal mine |
| CN106321102A (en) * | 2016-09-08 | 2017-01-11 | 中国矿业大学 | Coalmine consolidated solid strip filling coal mining method |
| CN108083701A (en) * | 2017-12-22 | 2018-05-29 | 辽宁工程技术大学 | A kind of early-strength geo-polymer paste filling material and preparation method thereof |
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2019
- 2019-02-01 CN CN201910104581.6A patent/CN109882238B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010043503A (en) * | 2008-08-18 | 2010-02-25 | Toyo Tire & Rubber Co Ltd | Underground space part filling method |
| CN102269013A (en) * | 2011-07-06 | 2011-12-07 | 湖南科技大学 | Method for mechanically filling gangue on single support working surface under complex coal seam condition |
| CN102558498A (en) * | 2012-01-04 | 2012-07-11 | 山西兆信生物科技有限公司 | Polyurethane reinforcing and filling materials for coal mine |
| CN103939139A (en) * | 2014-04-25 | 2014-07-23 | 中国矿业大学 | Equipment matching method for solid-filling coal face of coal mine |
| CN106321102A (en) * | 2016-09-08 | 2017-01-11 | 中国矿业大学 | Coalmine consolidated solid strip filling coal mining method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112112672A (en) * | 2020-09-22 | 2020-12-22 | 中国矿业大学 | Gob-side entry retaining roadside support body construction method based on gangue cement-based material |
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