Filler for mine enclosed material and preparation facilitiesTechnical field
The present invention relates to a kind of filler for mine enclosed material and preparation facilities.
Background technique
In coal mine driving, stoping operation, inbreak, wall caving are inevitably resulted from, forms hole.These holes are frequentMethane accumulation is caused, not only increases the risk of gas explosion, and can also cause spontaneous combustion having spontaneously inflammable coal seamIt is under fire.Therefore, these holes are only filled in time, can just be ensured safety in production.China's coal-mine, which is typically employed in, emits pick-up point frameGrillage the methods of is filled out mortar and is handled, but these methods are time-consuming, laborious, difficulty of construction is big, and cannot be guaranteed really to eliminate thingTherefore hidden danger.In addition, goaf is not isolated, underground ventilating is influenced, domestic traditional explosion-proof fire dam is mostly brick wall structure, and construction is usedBrick, sand, cement etc. carry out assembling bonding, this method amount of labour is big, low efficiency, with the raising of coal Mechanion degree,It is difficult to meet modern production requirement using traditional construction technology.Therefore exploitation is used for the novel filling of underground coal mine, closed materialMaterial seems extremely urgent.
It is external one to grow up at the seventies initial stage that it is backfilled enclosed, which to carry out inbreak hole, for macromolecule chemical materialNew technology, technology appearance are rapidly developed in main producing coal country, the world.China begins one's study lane at the nineties initial stageThe closed technology of road inbreak hole chemical material grouting filling, and have been achieved with preferable economic benefit and social benefit.But nowThat there is prices is higher, inflammable for polyurethane backfilled enclosed material, reaction temperature is high, reaction when generate a large amount of toxic gasesDisadvantage.
Summary of the invention
Technical problem solved by the invention is to provide one kind and is based on based on inorganic material, and flame retardant property is good, nontoxic, nothing pointThe filler for mine enclosed material of solution.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: a kind of filler for mine enclosed material, weight group become100 parts of water, 45~55 parts of flyash, 1~3 part of gypsum, 10~16 parts of cement, 8~12 parts of white lime, fatty alcohol polyoxyethylene ether1.2~1.8 parts, 5.5~8.0 parts of hydroxyethylmethylcellulose, 2~3 parts of lauryl sodium sulfate, fatty alcohol polyoxyethylene ether sulphur1~1.5 part of sour sodium, 1.5~2.0 parts of polyphosphoric acids, 2~2.5 parts of hydroxypropyl starch ether, the acetic acid that viscosity is 300~600mPas1.0~1.5 parts of the redispersable latex powder of ethylene-vinyl copolymer type, glass fibre 8~15 part of the length less than 2mm andIt is enough the silane coupling agent of sized glass fibres.
Preparation step is:
1): in main agitator tank be added water, flyash, fatty alcohol polyoxyethylene ether, hydroxyethylmethylcellulose, gypsum,Cement, white lime, blender are formed uniformly pulverized fuel ash slurry；
2): adding a small amount of water and polyphosphoric acids, hydroxypropyl starch ether, redispersable latex powder to stir evenly shape in agitatorAt epoxy glue mucus；
3): lauryl sodium sulfate, sodium sulfate of polyethenoxy ether of fatty alcohol being dissolved in suitable quantity of water in pill tank and being stirredDissolution forms solution；
4): the glass fibre after above-mentioned solution and epoxy glue mucus, silane coupling agent infiltration is mixed into the powder of main agitator tankCoal ash slurries are slowly stirred uniformly, obtain filler for mine enclosed material.
Preferably, in the step 4), blender with 100 ± 20 revs/min of rotational speeds, mixing time is 6~8min。
Correspondingly, the preparation facilities of backfilled enclosed material of the present invention, including main agitator tank, the interior setting stirring of main agitator tankDevice, main agitator tank top is open architecture and is provided with mounting rack, and mounting rack is used to install the motor of blender；The deviceIncluding agitator and pill tank, the agitator and pill tank are attached to the side wall on main agitator tank top and by pipeline and valveIt is connected to main agitator tank inner cavity；Agitating paddle is set in the agitator, and agitating paddle is driven by motor.
Beneficial effects of the present invention: the present invention is using fatty alcohol polyoxyethylene ether, hydroxyethylmethylcellulose as surfaceActivating agent enables to pulverized fuel ash slurry solid phase particles evenly dispersed, facilitates stable system.Lauryl sodium sulfate and fatBased on alcohol polyethenoxy ether sodium sulfate, fatty alcohol polyoxyethylene ether, organic surface of hydroxyethylmethylcellulose synergistic effect are livingProperty agent system superior foams performance can be provided, can produce sufficient bubble in stirring preparation process.Polyphosphoric acids, hydroxypropylOrganic gluing system that base starch ether, redispersable latex powder are constituted, which is capable of providing, stablizes quick glueability, can be realizedStable filling system is quickly formed in 20min at room temperature after seepage flow dispersion.What cement, gypsum, white lime were constituted answersThe hydration reaction that solid system promotes flyash is closed, so that solid matter rapid curing, the physics of specific glass fiber reinforced materialsPerformance, foam compressive property are excellent.Significantly reduce the dosages such as gypsum, cement, white lime simultaneously, main use cost is low, qualityLight flyash is main material；It is good in economic efficiency；Ensure foams performance and physical property again simultaneously.
In the prior art because gypsum, cement, white lime dosage increase foaming effect difference later or be difficult to bubble,Also there is the biggish technical solution of flyash dosage；But flyash dosage directly results in the resistance to compression of material, adhesive property reduces, practiceThe Material reinforcement measure for needing to cooperate other complicated in use.And backfilled enclosed material dosage is very big, complex process, it is at high cost allIt influences to promote and use.The present invention is successfully solved in the prior art by the foundation of compound bubble and organic systemThis problem.Flame Retardancy can be excellent simultaneously, simple process, low in cost, no to decompose, is nontoxic based on inorganic material,It can be largely using security risk will not be brought.And aerated fluid permeance property is good, quickly, the time can pass through three kinds of glue for solidificationViscous material amounts appropriate adjustment.Meet coal mine and other various mining area backfilled enclosed the needs of using.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of preparation facilities of the invention.
Specific embodiment
Filler for mine enclosed material as shown in Figure 1 prepares dedicated unit, including main agitator tank 10, sets in main agitator tank 10Blender 11, main 10 bottom of agitator tank setting discharge port 14 and valve are set, is open design, top installation at the top of main agitator tank 10Bead is equipped with mounting rack, and mounting rack is used to install the motor 12 of blender 11.The device includes agitator 20 and ingredientCylinder 30, the agitator 20 and pill tank 30 are attached on the side wall on main 10 top of agitator tank and are stirred by pipeline and valve with masterMix the connection of 10 inner cavity of tank；Agitating paddle 21 is set in the agitator 20, agitating paddle 21 is driven by motor 22.Setting increase is opened wide to stirIt contacts during mixing with air and foams performance.Agitator 20 and pill tank 30 are attached to the side of the side wall on main 10 top of agitator tankFormula facilitates integration of equipments and use.
Specific preparation process is illustrated below with reference to above-mentioned dedicated unit, so that those skilled in the art are moreClear implementation and effect of the invention.
Embodiment one
By following weight form stock up: 100 parts of water, particle particle size range be 0.5~300 μm 45 parts of flyash, stone3 parts of cream, 10 parts of 42.5R cement, 12 parts of white lime, 1.2 parts of fatty alcohol polyoxyethylene ether, 6.5 parts of hydroxyethylmethylcellulose, ten2 parts of sodium dialkyl sulfate, 1 part of sodium sulfate of polyethenoxy ether of fatty alcohol, 1.5 parts of polyphosphoric acids, viscosity are 300~600mPas's2 parts of hydroxypropyl starch ether, 1.2 parts of the redispersable latex powder of vinyl acetate-ethylene copolymer type, length are less than the glass of 2mm12 parts of glass fiber and the silane coupling agent for being enough sized glass fibres.
Preparation step is:
1): 80 parts of water being added in main agitator tank and whole flyash, fatty alcohol polyoxyethylene ether, hydroxyethyl methyl are fineElement, gypsum, cement, white lime are tieed up, blender is formed uniformly pulverized fuel ash slurry, 1000 turns/min of speed of agitator；
2): in agitator plus 15 parts of water equal with whole polyphosphoric acids, hydroxypropyl starch ether, redispersable latex powder stirringEven formation epoxy glue mucus, 200 turns/min of speed of agitator；
3): lauryl sodium sulfate, sodium sulfate of polyethenoxy ether of fatty alcohol being dissolved in 5 parts of water in pill tank and being stirred manuallyIt mixes dissolution and forms solution；
4): the glass fibre after above-mentioned solution and epoxy glue mucus, silane coupling agent infiltration is mixed into the powder of main agitator tankCoal ash slurries, blender obtain filler for mine enclosed material with 100 ± 20 revs/min of rotational speeds, mixing time 6min.
Embodiment two
By following weight form stock up: 100 parts of water, particle particle size range be 0.5~300 μm 55 parts of flyash, stone1 part of cream, 15 parts of 42.5R cement, 10 parts of white lime, 1.8 parts of fatty alcohol polyoxyethylene ether, 8 parts of hydroxyethylmethylcellulose, 122.5 parts of sodium alkyl sulfate, 1.2 parts of sodium sulfate of polyethenoxy ether of fatty alcohol, 2 parts of polyphosphoric acids, viscosity are 300~600mPas's1.2 parts of redispersable latex powder of 2.2 parts of hydroxypropyl starch ether, vinyl acetate-ethylene copolymer type, length is less than 2mm's10 parts of glass fibre and the silane coupling agent for being enough sized glass fibres.
Preparation step is:
1): 80 parts of water being added in main agitator tank and whole flyash, fatty alcohol polyoxyethylene ether, hydroxyethyl methyl are fineElement, gypsum, cement, white lime are tieed up, blender is formed uniformly pulverized fuel ash slurry, 1000 turns/min of speed of agitator；
2): in agitator plus 15 parts of water equal with whole polyphosphoric acids, hydroxypropyl starch ether, redispersable latex powder stirringEven formation epoxy glue mucus, 300 turns/min of speed of agitator；
3): lauryl sodium sulfate, sodium sulfate of polyethenoxy ether of fatty alcohol be dissolved in 5 parts of water in pill tank stir it is moltenSolution forms solution；
4): the glass fibre after above-mentioned solution and epoxy glue mucus, silane coupling agent infiltration is mixed into the powder of main agitator tankCoal ash slurries, blender obtain filler for mine enclosed material with 100 ± 20 revs/min of rotational speeds, mixing time 7min.
Embodiment three
By following weight form stock up: 100 parts of water, particle particle size range be 0.5~300 μm 50 parts of flyash, stone2 parts of cream, 12 parts of 42.5R cement, 8 parts of white lime, 1.6 parts of fatty alcohol polyoxyethylene ether, 7 parts of hydroxyethylmethylcellulose, 122.4 parts of sodium alkyl sulfate, 1.4 parts of sodium sulfate of polyethenoxy ether of fatty alcohol, 1.8 parts of polyphosphoric acids, viscosity are 300~600mPas2.2 parts of hydroxypropyl starch ether, 1.5 parts of redispersable latex powder of vinyl acetate-ethylene copolymer type, length is less than 2mm8 parts of glass fibre and be enough the silane coupling agents of sized glass fibres.
Preparation step is:
1): 82 parts of water being added in main agitator tank and whole flyash, fatty alcohol polyoxyethylene ether, hydroxyethyl methyl are fineElement, gypsum, cement, white lime are tieed up, blender is formed uniformly pulverized fuel ash slurry, 1000 turns/min of speed of agitator；
2): in agitator plus 12 parts of water equal with whole polyphosphoric acids, hydroxypropyl starch ether, redispersable latex powder stirringEven formation epoxy glue mucus, 400 turns/min of speed of agitator；
3): lauryl sodium sulfate, sodium sulfate of polyethenoxy ether of fatty alcohol be dissolved in 6 parts of water in pill tank stir it is moltenSolution forms solution；
4): the glass fibre after above-mentioned solution and epoxy glue mucus, silane coupling agent infiltration is mixed into the powder of main agitator tankCoal ash slurries, blender obtain filler for mine enclosed material with 100 ± 20 revs/min of rotational speeds, mixing time 8min.
Example IV
By following weight form stock up: 100 parts of water, particle particle size range be 0.5~300 μm 55 parts of flyash, stone2 parts of cream, 15 parts of 42.5R cement, 10 parts of white lime, 1.5 parts of fatty alcohol polyoxyethylene ether, 6 parts of hydroxyethylmethylcellulose, 122.4 parts of sodium alkyl sulfate, 1.2 parts of sodium sulfate of polyethenoxy ether of fatty alcohol, 1.6 parts of polyphosphoric acids, viscosity are 300~600mPas2 parts of hydroxypropyl starch ether, 1.5 parts of redispersable latex powder of vinyl acetate-ethylene copolymer type, length is less than 2mm's13 parts of glass fibre and the silane coupling agent for being enough sized glass fibres.
Preparation step is:
1): 82 parts of water being added in main agitator tank and whole flyash, fatty alcohol polyoxyethylene ether, hydroxyethyl methyl are fineElement, gypsum, cement, white lime are tieed up, blender is formed uniformly pulverized fuel ash slurry, 1000 turns/min of speed of agitator；
2): in agitator plus 12 parts of water equal with whole polyphosphoric acids, hydroxypropyl starch ether, redispersable latex powder stirringEven formation epoxy glue mucus, 200 turns/min of speed of agitator；
3): lauryl sodium sulfate, sodium sulfate of polyethenoxy ether of fatty alcohol be dissolved in 6 parts of water in pill tank stir it is moltenSolution forms solution；
4): the glass fibre after above-mentioned solution and epoxy glue mucus, silane coupling agent infiltration is mixed into the powder of main agitator tankCoal ash slurries, blender obtain filler for mine enclosed material with 100 ± 20 revs/min of rotational speeds, mixing time 6min.
The material of aforementioned four embodiment is examined after maintenance 7 days with reference to the mode of GB50107-2010 concrete strength inspectionSurvey the performance indicators such as compression strength.The testing result of four embodiments is as shown in the table:
| Project | Embodiment one | Embodiment two | Embodiment three | Example IV |
| Firm time/min | 16 | 18 | 17 | 17 |
| Dry density/g/cm3 | 0.85 | 1.00 | 0.64 | 0.79 |
| Compression strength/MPa | 6.0 | 5.8 | 9.0 | 5.9 |
It is almost suitable with concrete by above structure as it can be seen that backfilled enclosed material bearing capacity of the invention is strong.Material is dryWeight inorganic component reaches 90% or more, non-ignitable not decompose, and meets fire resistance rating A grade standard, and without adding fire retardant.