CN110156357A - A kind of coal mine roadway closure high expansion gelling agent - Google Patents
A kind of coal mine roadway closure high expansion gelling agent Download PDFInfo
- Publication number
- CN110156357A CN110156357A CN201910489251.3A CN201910489251A CN110156357A CN 110156357 A CN110156357 A CN 110156357A CN 201910489251 A CN201910489251 A CN 201910489251A CN 110156357 A CN110156357 A CN 110156357A
- Authority
- CN
- China
- Prior art keywords
- coal mine
- gelling agent
- high expansion
- mine roadway
- calcium
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/32—Aluminous cements
- C04B7/326—Calcium aluminohalide cements, e.g. based on 11CaO.7Al2O3.CaX2, where X is Cl or F
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention discloses kind of coal mine roadways to block high expansion gelling agent, and it includes: calcium chloride, calcium sulphoaluminate, calcium aluminate, spherical aluminium powder, redispersable latex powder that the coal mine roadway, which blocks high expansion gelatinization agent component,.The composition by weight percent are as follows: calcium chloride 40-50%, calcium sulphoaluminate 20-30%, calcium aluminate 20-30%, spherical aluminium powder 0.2-0.5%, redispersable latex powder 0.5-1%, it is simple process, advanced, coal mine roadway of the invention blocks high expansion gelling agent and only needs to be mixed in a certain ratio uniformly with water, flyash when in use, goaf filling place can be transported to, the equipment that underground filling uses is simple, quantity is few, high-efficient, and production capacity is big.Slurry is not dehydrated condensation filling, and supporting filling body performance is good；Slurry can be used bottom surface and concentrate slurrying or underground site slurrying, and slurries have good suspension, and slurry can be considered homogeneous slurry during transportation, therefore slurrying and conveying are all more convenient, and slurry pipeline steel quality can be guaranteed.
Description
Technical field
The invention belongs to coal mine filling plugging materials, and in particular to a kind of coal mine roadway closure high expansion gelling agent.
Background technique
In coal mine fire zone closing and goaf leakage stopping technology field, fire extinguishing filler is commonly used, wherein traditional material
Mainly there are yellow mud, cement mortar, gangue mud, gypsum, gel etc., new material has Roc to stop, Ma Lisan, auspicious rice, beauty
Gu treasured, three-phase froth etc..Volume contraction is big after the generally existing with high costs, dehydration of these materials, problem of solidification (cannot solidify or
Curing time is long etc.), solidification intensity is low etc., and disadvantages cause in addition, high molecular material can release a large amount of heat in the curing process
Local temperature increases, and brings security risk to coal mine.In recent years, high water gelling agent mixing flyash perfusion technique is gradually in coal mine
Upper popularization and application.High water gelling agent is grouped as by two kinds of groups of material and second material, and material is additional by aluminate cement clinker and cement
The powder of agent forms, and second material is made of the powder of gypsum, lime and several additives.Two kinds of material are used cooperatively, by certain
It can react rapidly after ratio mixing and then produce water-enriched filling solid material.High water gelling agent has obturation moisture content
The advantages such as high, setting rate is fast, pump-conveying property is good, non-toxic and tasteless, intensity is high, at low cost, microdilatancy, constant-resistance, low temperature.Flyash
It is the solid waste of coal-burning power plant's discharge, it is cheap.When high water gelling agent and flyash with certain proportion, through special process
After mixing match, a kind of efficient fire prevention filler can be formed.Because of it with good fluidity, shrinking percentage is small, compression strength
The features such as high, in goaf, the fields such as leak stopping fire prevention, roadway support with backfilling supporting embody brilliant waterproof, fire prevention, weathering resistance
And Corrosion Protection, the safety in production of mine was not only realized, but also the anti-disaster ability of mine can be improved.
Existing high water gelling agent is all made of material and second material bi-component, due to the particularity of coal mine operation,
The use of bi-component high*.water packing gelling agent increases construction volume.Because in the construction process, needing to distinguish material and second material
Single liquid is made to be stirred, mixed, filled with flyash again after uniform properties.In addition, material and the proportion of second material are asked
Topic, but also construction process becomes cumbersome and complicated.
Summary of the invention
Place in view of the shortcomings of the prior art, the purpose of the present invention is to provide a kind of coal mine roadways to block high expansion
Gelling agent under the premise of holding bi-component high water gelling agent excellent properties, can subtract to replace the high water gelling agent of bi-component
Lack construction volume, simplifies proportion problem.
The purpose of the invention is achieved by the following technical solution:
A kind of coal mine roadway blocks high expansion gelling agent, the coal mine roadway block high expansion gelatinization agent component include: calcium chloride,
Calcium sulphoaluminate, calcium aluminate, spherical aluminium powder, redispersable latex powder.
Further, the composition by weight percent are as follows: calcium chloride 40-50%, calcium sulphoaluminate 20-30%, calcium aluminate 20-
30%, spherical aluminium powder 0.2-0.5%, redispersable latex powder 0.5-1%.
Further, when the coal mine roadway blocks the use of high expansion gelling agent such as with the weight proportion of moisture and flyash
For；Coal mine roadway blocks high expansion gelling agent: flyash: water=1:4:5.
Further, the granulometric range of the flyash is 150-200 mesh.
The present invention compared with the prior art, have the following advantages that and the utility model has the advantages that
First: simple process, advanced, coal mine roadway of the invention blocks high expansion gelling agent and only needs when in use and water, powder
Coal ash is mixed in a certain ratio uniformly, can be transported to goaf filling place.The equipment that underground filling uses is simple, quantity
Few, high-efficient, production capacity is big.Slurry is not dehydrated condensation filling, and supporting filling body performance is good.
Slurry can be used bottom surface and concentrate slurrying or underground site slurrying, and slurries have good suspension, and slurry is conveying
It can be considered homogeneous slurry in the process, therefore slurrying and conveying are all more convenient, slurry pipeline steel quality can be guaranteed.
Second: low in cost, coal mine roadway of the invention blocks the flyash weight that high expansion gelling agent mixes when in use
Percentage is measured in 70-80%, water-solid ratio reduces filling cost between 0.6-1.0.
Third: it is nontoxic that material property is stable, coal mine roadway blocks high expansion gellant material.Non-corrosive, environment
It is friendly.The material coefficient of expansion is good, can actively meet top, expansion rate 5-20%.
The compression strength of material solidification body increases with the growth at maintenance age, and compression strength is finally up to 3.5MPa.
After material hardening body pressure break, in the case where not dehydration, place a period of time, hardenite can also recovered part it is strong
Degree, i.e. regeneration strength character, will not occur brittle break.
Detailed description of the invention
Fig. 1 is production method flow chart of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
The composition by weight percent are as follows: calcium chloride 45Kg, calcium sulphoaluminate 30Kg, calcium aluminate 24Kg, spherical aluminium powder 0.5Kg, can
Redisperse latex powder 0.5Kg.
Embodiment 2
The composition by weight percent are as follows: calcium chloride 40Kg, calcium sulphoaluminate 30Kg, calcium aluminate 28.5Kg, spherical aluminium powder 0.5Kg,
Redispersable latex powder 1Kg.
Embodiment 3
The composition by weight percent are as follows: calcium chloride 45Kg, calcium sulphoaluminate 25Kg, calcium aluminate 28.8Kg, spherical aluminium powder 0.2Kg,
Redispersable latex powder 1Kg.
The coal mine roadway of 1-3 of the embodiment of the present invention is blocked into high expansion gellant material and carries out performance measurement, in construction,
It is 1:4:5 that coal mine roadway, which blocks high expansion gelling agent, flyash and whose weight ratio, as a result as in the table below.
| Intensity (MPa) on the 7th | Intensity (MPa) on the 28th | |
| Embodiment 1 | 2.1 | 3.5 |
| Embodiment 2 | 1.5 | 2.5 |
| Embodiment 3 | 1.1 | 2.1 |
There is upper table to can be seen that coal mine roadway of the invention blocks high expansion gelling agent and has good intensity, meets construction
Needs.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended, the present invention: it is simple process, advanced, it is of the invention
Coal mine roadway blocks high expansion gelling agent and only needs to be mixed in a certain ratio uniformly with water, flyash when in use, that is, can transport
To goaf filling place；The equipment that underground filling uses is simple, and quantity is few, high-efficient, and production capacity is big.Slurry is not dehydrated solidifying
Knot filling, supporting filling body performance are good；Slurry can be used bottom surface and concentrate slurrying or underground site slurrying, and slurries have good outstanding
Buoyancy, slurry can be considered homogeneous slurry during transportation, therefore slurrying and conveying are all more convenient, and slurry pipeline steel quality can obtain
To guarantee.
Claims (4)
1. a kind of coal mine roadway blocks high expansion gelling agent, it is characterised in that: the coal mine roadway block high expansion gelling agent at
Dividing includes: calcium chloride, calcium sulphoaluminate, calcium aluminate, spherical aluminium powder, redispersable latex powder.
2. a kind of coal mine roadway according to claim 1 blocks high expansion gelling agent, it is characterised in that: the Ingredients Weight
Percentage are as follows: calcium chloride 40-50%, calcium sulphoaluminate 20-30%, calcium aluminate 20-30%, spherical aluminium powder 0.2-0.5%, redispersible cream
Rubber powder 0.5-1%.
3. a kind of coal mine roadway according to claim 1 blocks high expansion gelling agent, it is characterised in that: the coal mine
When laneway plugging high expansion gelling agent uses for example with the weight proportion of moisture and flyash；Coal mine roadway blocks high expansion gelling
Agent: flyash: water=1:4:5.
4. a kind of coal mine roadway according to claim 1 to 3 blocks high expansion gelling agent, it is characterised in that: institute
The granulometric range for stating flyash is 150-200 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910489251.3A CN110156357A (en) | 2019-06-06 | 2019-06-06 | A kind of coal mine roadway closure high expansion gelling agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910489251.3A CN110156357A (en) | 2019-06-06 | 2019-06-06 | A kind of coal mine roadway closure high expansion gelling agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110156357A true CN110156357A (en) | 2019-08-23 |
Family
ID=67627820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910489251.3A Pending CN110156357A (en) | 2019-06-06 | 2019-06-06 | A kind of coal mine roadway closure high expansion gelling agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110156357A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111362649A (en) * | 2020-03-20 | 2020-07-03 | 北京矿冶科技集团有限公司 | Tailing filling slurry, additive thereof and method for improving filling compaction rate of metal mine goaf |
-
2019
- 2019-06-06 CN CN201910489251.3A patent/CN110156357A/en active Pending
Non-Patent Citations (2)
| Title |
|---|
| 侯运炳: "《尾砂固结排放技术》", 30 April 2016, 冶金工业出版社 * |
| 黄玉诚: "《矿山充填理论与技术》", 31 March 2014, 冶金工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111362649A (en) * | 2020-03-20 | 2020-07-03 | 北京矿冶科技集团有限公司 | Tailing filling slurry, additive thereof and method for improving filling compaction rate of metal mine goaf |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190823 |
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| RJ01 | Rejection of invention patent application after publication |