CN107989651B - A kind of method in foam phosphorus slag material filling mine - Google Patents
A kind of method in foam phosphorus slag material filling mine Download PDFInfo
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- CN107989651B CN107989651B CN201711203799.4A CN201711203799A CN107989651B CN 107989651 B CN107989651 B CN 107989651B CN 201711203799 A CN201711203799 A CN 201711203799A CN 107989651 B CN107989651 B CN 107989651B
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- phosphorus slag
- slag material
- water
- material filling
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- 239000006260 foam Substances 0.000 title claims abstract description 82
- 239000002893 slag Substances 0.000 title claims abstract description 68
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 239000011574 phosphorus Substances 0.000 title claims abstract description 67
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 67
- 239000000463 material Substances 0.000 title claims abstract description 58
- 238000011049 filling Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000004088 foaming agent Substances 0.000 claims abstract description 22
- 239000002002 slurry Substances 0.000 claims abstract description 19
- 239000004568 cement Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 15
- 238000002360 preparation method Methods 0.000 claims description 11
- 239000011381 foam concrete Substances 0.000 claims description 10
- 239000000292 calcium oxide Substances 0.000 claims description 9
- 235000012255 calcium oxide Nutrition 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 239000011398 Portland cement Substances 0.000 claims description 7
- 239000000284 extract Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- -1 ardealite Substances 0.000 claims description 4
- 239000002910 solid waste Substances 0.000 abstract description 4
- 239000000945 filler Substances 0.000 abstract description 3
- 239000011149 active material Substances 0.000 abstract description 2
- 230000007812 deficiency Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000005065 mining Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000012263 liquid product Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- OBSZRRSYVTXPNB-UHFFFAOYSA-N tetraphosphorus Chemical compound P12P3P1P32 OBSZRRSYVTXPNB-UHFFFAOYSA-N 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 108010082495 Dietary Plant Proteins Proteins 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000158728 Meliaceae Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 235000021120 animal protein Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
-
- 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
- C04B28/14—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 calcium sulfate cements
- C04B28/142—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/143—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being phosphogypsum
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
- C04B38/106—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam by adding preformed foams
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/005—Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
-
- 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
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
- C04B2111/40—Porous or lightweight materials
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Ceramic Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a kind of methods in foam phosphorus slag material filling mine.1) method in this filling mine is the following steps are included: prepare slurry；2) foam is prepared；3) foam phosphorus slag material is prepared；4) it pours；5) it conserves.The present invention generates foam using foaming agent, mix Phosphorus Slag and other a small amount of active materials, form a kind of novel foam phosphorus slag filler, on the one hand the situation of part mine tailings deficiency is solved, on the other hand the utilization rate of Phosphorus Slag can be effectively improved, alleviate environmental pressure, using solid waste resource to reduce cement in the utilization rate in filling in mine field, and then reduces the cost of filling in mine.
Description
Technical field
The present invention relates to a kind of methods in foam phosphorus slag material filling mine.
Background technique
The method of mining by the way of filling is presently the most popular mining methods, and the collapsing of earth's surface caused by mining, solid waste can be effectively relieved
Emission problem, and effectively improve the rate of extraction of buried ore body and ore pillar.According to statistics, China uses cemented-method to exploit at present
Underground mine, filling cost accounts for 55% or so of mining totle drilling cost, and cement expense then accounts for 70% or more, and cement is as mine
Mountain cementing filling material, there is pollutions greatly, connects the problems such as rate low, at high cost, live dehydration in top is difficult.
Due to social cause, the early stage exploitation of China, mine, part belongs to individual and contracts, and financial resources are more weak, cost input power
To spend small, the exploitation at the scene of not carrying out is refined, but by the direct export trade of ore after exploitation, without tailings, mineral building goaf
Filling the problem of also not completing, finally leave because of cost problem, is that cavity is more and filling material is insufficient.
Phosphorus Slag is the industry byproduct generated when producing yellow phosphorus, and annual emissions are huge, and every annual emissions reach in recent years
More than 2500 ten thousand tons, phosphorus slag chemical composition and phase structure are similar to slag powders, have potential chemical activity, but at present about phosphorus
The research that slag recycling efficiently utilizes is rarely reported, and phosphorus slag has been in a large amount of stacking states, causes very big harm to environment.
Ardealite is the solid waste of Wet-process phosphoric acid (WPPA), nearly 300,000,000 tons of the annual output of whole world ardealite, wherein China
Annual production ardealite is close to 7,000 ten thousand tons, and current recycling is mainly in sulphate aluminium cement, aerated-block, light thermal-insulation
The field of material preparation such as material, utilization rate is still less than 25%, therefore stockpiling is still the main processing ways of ardealite, so far China
The total volume of cargo in storage of ardealite be up to 300,000,000 tons, occupy a large amount of valuable land resources, polluted environment.
Summary of the invention
The purpose of the present invention is to provide a kind of methods in foam phosphorus slag material filling mine.
The technical solution used in the present invention is:
A kind of method in foam phosphorus slag material filling mine, comprising the following steps:
1) slurry is prepared: by Phosphorus Slag, cement, ardealite, quick lime (45~55) in mass ratio: (15~25): (15~
25): 10 stir in advance in a mixing bowl, then water is added by 0.5~0.6 ratio of mud, continue to stir, slurry is made；
2) it prepares foam: in foam preparation station, extracting foam concrete foamer and water respectively, foaming agent and water are pressed
Mass ratio 1:(48~50) it is mixed, producing foamed agent solution, then foaming agent solution is expedited the emergence of by air compressor and is steeped
Foam；
3) foam phosphorus slag material is prepared: in foam preparation station, by volume (60~70) by slurry and foam: (40~
30) it is mixed, foam phosphorus slag material is made；
4) it pours: foam phosphorus slag material being delivered to mine worked-out section by pipeline self, is poured；
5) it conserves: water curing is added to the foam phosphorus slag material after the completion of pouring.
In step 1), cement is 32.5 or 32.5R type ordinary portland cement.
In step 1), the speed of agitator of a mixing bowl is 20~40r/min, and the time stirred in advance is 4~6min, be added water after
The time of continuous stirring is 8~12min.
In step 2), foam concrete foamer and water are extracted specifically: diameter is used to extract for the hose of 18~22mm
Foam concrete foamer, the hose that application diameter is 90~110mm extract water.
In step 2), the operating pressure of air compressor is 0.7~0.9MPa, and expansion ratio is foaming agent solution volume
18~22 times.
In step 3), the wet density control of foam phosphorus slag material is 550~600kg/m3。
In step 4), the foam phosphorus slag material layer a height of 0.9~1.1m for placement layer by layer, poured every time is poured, adjacent two
The interval time that layer pours is 6~8h.
In step 4), the outlet of pipeline and foam phosphorus slag material to pour face concordant.
In step 5), adding the number of water curing is that the time of water curing is added to be 2~3 days after the completion of pouring 2 times a day.
The beneficial effects of the present invention are:
The present invention generates foam using foaming agent, mixes Phosphorus Slag and other a small amount of active materials, is formed a kind of novel
On the one hand foam phosphorus slag filler solves the situation of part mine tailings deficiency, on the other hand can effectively improve Phosphorus Slag
Utilization rate, alleviate environmental pressure, using solid waste resource to reduce cement in the utilization rate in filling in mine field, and then reduce mine
The cost of mountain filling.
Specific embodiment
A kind of method in foam phosphorus slag material filling mine, comprising the following steps:
1) slurry is prepared: by Phosphorus Slag, cement, ardealite, quick lime (45~55) in mass ratio: (15~25): (15~
25): 10 stir in advance in a mixing bowl, then water is added by 0.5~0.6 ratio of mud, continue to stir, slurry is made；
2) it prepares foam: in foam preparation station, extracting foam concrete foamer and water respectively, foaming agent and water are pressed
Mass ratio 1:(48~50) it is mixed, producing foamed agent solution, then foaming agent solution is expedited the emergence of by air compressor and is steeped
Foam；
3) foam phosphorus slag material is prepared: in foam preparation station, by volume (60~70) by slurry and foam: (40~
30) it is mixed, foam phosphorus slag material is made；
4) it pours: foam phosphorus slag material being delivered to mine worked-out section by pipeline self, is poured；
5) it conserves: water curing is added to the foam phosphorus slag material after the completion of pouring.
In step 1), it is preferred that cement is 32.5 or 32.5R type ordinary portland cement.
In step 1), it is preferred that the speed of agitator of a mixing bowl is 20~40r/min, and the time stirred in advance is 4~6min,
Water is added and continues the time of stirring as 8~12min；It is further preferred that the speed of agitator of a mixing bowl is 30r/min, it is pre- to stir
Time be 5min, be added water continue stirring time be 10min.
The mass ratio of the ratio of mud, that is, water described in step 1) and siccative (Phosphorus Slag, cement, ardealite and quick lime).
In step 2), foam concrete foamer and water are extracted specifically: diameter is used to extract for the hose of 18~22mm
Foam concrete foamer, the hose that application diameter is 90~110mm extract water；Preferably, use diameter for the hose of 20mm
Foam concrete foamer is extracted, the hose that application diameter is 100mm extracts water.
In step 2), it is preferred that the operating pressure of air compressor is 0.7~0.9MPa, and expansion ratio is that foaming agent is molten
18~22 times of liquid product；It is further preferred that the operating pressure of air compressor is 0.8MPa, expansion ratio is that foaming agent is molten
20 times of liquid product.
In step 3), the wet density control of foam phosphorus slag material is 550~600kg/m3。
In step 4), it is preferred that it pours as placement layer by layer, the foam a height of 0.9~1.1m of phosphorus slag material layer poured every time,
The interval time that adjacent two layers pour is 6~8h；It is further preferred that pouring as placement layer by layer, the foam phosphorus slag poured every time
The a height of 1m of material layer, the interval time that adjacent two layers pour are 6h.
In step 4), the outlet of pipeline and foam phosphorus slag material to pour face concordant.
In step 5), it is preferred that add water curing number be 2 times a day, add water curing time be pour after the completion of 2~
3 days；Further, the amount of water of water curing is added to cover thickness≤1cm of foam phosphorus slag material surface for water.
The contents of the present invention are described in further detail below by way of specific embodiment.
Embodiment 1:
A kind of method in foam phosphorus slag material filling mine, comprising the following steps:
1) slurry is prepared: Phosphorus Slag, cement, ardealite, quick lime 50:20:20:10 in mass ratio is pre- in a mixing bowl
5min is stirred, then water is added by 0.55 ratio of mud, continues to stir 10min, slurry prepares the control of overall process speed of agitator and exists
30r/min, fugitive dust when preventing powder from stirring after the completion of slurry preparation, are delivered to foam preparation station by peristaltic pump；
2) it prepares foam: in foam preparation station, extracting foaming agent using the hose of diameter 20mm, use diameter 100mm
Hose extract water, foaming agent is mixed with water by the mass ratio of 1:49, stirring 2min；After producing foamed agent solution, pass through sky
Air compressor expedites the emergence of foam by 0.8MPa, and expansion ratio is set as 20 times of foaming agent solution, to generate a large amount of careful equal
Even, stable foam；
3) prepare foam phosphorus slag material: in a mixing bowl at foam preparation station, by slurry and foam, 65:35 is mixed by volume
It closes, 3min is stirred with 60r/min, the foam phosphorus slag material wet density control being prepared into is 550~600kg/m3；
4) it pours: the foam phosphorus slag material mixed is transported to mine worked-out section, pipeline opening and bubble by pipeline self
Foam phosphorus slag pours that face is concordant, the impact force of foam phosphorus slag and ground is reduced, to reduce defoamed ratio；Control one-time-concreting height exists
Pipeline can be forwarded to another goaf after pouring 1m by 1m, and after 6h, foam phosphorus slag material final set carries out down again when being basically completed
One layer pours；
5) it conserves: two days after the completion of pouring, carrying out two subsurfaces daily and add water curing, amount of water is to cover foam phosphorus slag
For the thickness of material surface no more than subject to 1cm, the third day foam phosphorus slag strength of materials can be up to standard, meets filling and requires.
In embodiment 1, Phosphorus Slag used is the powder for generating waste residue when chemical plant produces yellow phosphorus and wearing into, chemical component
Are as follows: SiO2Content be 39.90wt%, the content of CaO is 28.42wt%, CaF2Content be 4.61wt%, the content of MgO is
4.48wt%, P2O5Content be 2.99wt%, Al2O3Content be 2.99wt%, SO3Content be 1.04wt%, Fe2O3's
Content is 0.11wt%；Its particle diameter distribution are as follows: partial size is that the particle of 0.25~0.5mm accounts for 0.2wt%；Partial size be 0.075~
The particle of 0.25mm accounts for 6.9wt%；Partial size is that the particle of 0.05~0.075mm accounts for 6.9wt%；Partial size is 0.005~0.05mm
Particle account for 84.3wt%；Particle of the partial size less than 0.005mm accounts for 1.7wt%.
Cement used is 32.5 type ordinary portland cements of standard.
Ardealite chemical component used are as follows: P2O5Content be 1.47wt%, Fe2O3Content be 0.48wt%, Al2O3
Content be 0.36wt%, the content of MnO is 2.44wt%, and the content of CaO is 28.6wt%, SO3Content be
The content of 49.07wt%, F are 0.87wt%, remaining insolubles content is 10.17%；Its particle diameter distribution are as follows: partial size is less than 5.20
μm particle account for 10wt%, particle of the partial size less than 9.53 μm accounts for 50wt%, and particle of the partial size less than 87.19 μm accounts for 90wt%.
Quick lime used is a kind of high calcium ash, chemical analysis are as follows: the content of CaO is 85.2wt%, and content of MgO is
3.0wt%；SiO2Content is 4.1wt%.
Foaming agent used is that road engineering Foam lightweight soil prepares the Traditional blowing agents used, as rosin acid soaps foam
Agent, metallic aluminium powder foaming agent, vegetable protein foaming agent, animal protein foaming agent, resin soaps foaming agent, hydrolysis blood glue foaming
Agent, mahogany acid aluminium foaming agent etc..
Embodiment 2:
Step 3) is prepared in foam phosphorus slag material, and 60:40 is mixed by volume for slurry and foam, remaining and embodiment
1 it is identical.
Embodiment 3:
Step 3) is prepared in foam phosphorus slag material, and 70:30 is mixed by volume for slurry and foam, remaining and embodiment
1 it is identical.
Comparative example 1:
Step 1) is prepared in slurry, 32.5 type ordinary portland cements used in all embodiments 1 of siccative, remaining and reality
Apply the identical of example 1.
Comparative example 2:
Step 1) is prepared in slurry, 32.5 type ordinary portland cements used in all embodiments 1 of siccative, remaining and reality
Apply the identical of example 2.
Comparative example 3:
Step 1) is prepared in slurry, 32.5 type ordinary portland cements used in all embodiments 1 of siccative, remaining and reality
Apply the identical of example 3.
The foamed material that Example 1~3 and comparative example 1~3 are prepared after step 3) is tested:
1, foamed material is successively uniformly poured into inner wall brush expires the three joint-trial mould of 70.7*70.7*70.7mm standard of lubricating oil
In, every group of sample is poured three groups, respectively to measure 3 days, 7 days and 28 days intensity；
2. it is (20 ± 1) DEG C that test block, which is put into temperature, relative humidity is in 95% standard curing box, maintenance takes off afterwards for 24 hours
Test block is reentered into curing box maintenance to corresponding age by mould, with full-automatic pressure testing machine with the speed of 100N/s survey its 3
It, the intensity of 7 days and 28 days, per age tests 3 test blocks, takes its average value as the uniaxial compressive strength of the age obturation.
In addition, by the bleeding rate and fluidity of national standard test foamed material, relevant test result is as shown in table 1.
The performance comparison of 1 embodiment and comparative example foamed material of table
As seen from Table 1, under the same conditions, the foamed material of the embodiment of the present invention 1~3 was supported at 3 days, 7 days and 28 days
Intensity under the length of service as a nurse phase is above the cement of respective comparative example, and bleeding rate is then lower than cement entirely, and fluidity is close with cement, mine
The fluidity of filler is greater than 290 and is able to satisfy filling in mine self-flowing pastefill basic demand.
Claims (9)
1. a kind of method in foam phosphorus slag material filling mine, it is characterised in that: the following steps are included:
1) slurry is prepared: by Phosphorus Slag, cement, ardealite, quick lime (45~55) in mass ratio: (15~25): (15~25):
10 stir in advance in a mixing bowl, then water is added by 0.5~0.6 ratio of mud, continue to stir, slurry is made；
2) it prepares foam: in foam preparation station, extracting foam concrete foamer and water respectively, foaming agent and water are pressed into quality
Than 1:(48~50) it is mixed, producing foamed agent solution, then foaming agent solution is expedited the emergence of by air compressor and obtains foam；
3) prepare foam phosphorus slag material: in foam preparation station, by volume (60~70) by slurry and foam: (40~30) are mixed
Stirring is closed, foam phosphorus slag material is made；
4) it pours: foam phosphorus slag material being delivered to mine worked-out section by pipeline self, is poured；
5) it conserves: water curing is added to the foam phosphorus slag material after the completion of pouring.
2. a kind of method in foam phosphorus slag material filling mine according to claim 1, it is characterised in that: in step 1),
Cement is 32.5 or 32.5R type ordinary portland cement.
3. a kind of method in foam phosphorus slag material filling mine according to claim 1, it is characterised in that: in step 1),
The speed of agitator of a mixing bowl be 20~40r/min, the time stirred in advance be 4~6min, be added water continue stirring time be 8~
12min。
4. a kind of method in foam phosphorus slag material filling mine according to claim 1, it is characterised in that: in step 2),
Extract foam concrete foamer and water specifically: use diameter to extract foam concrete foamer for the hose of 18~22mm,
The hose that application diameter is 90~110mm extracts water.
5. a kind of method in foam phosphorus slag material filling mine according to claim 1, it is characterised in that: in step 2),
The operating pressure of air compressor is 0.7~0.9MPa, and expansion ratio is 18~22 times of foaming agent solution volume.
6. a kind of method in foam phosphorus slag material filling mine according to claim 1, it is characterised in that: in step 3),
The wet density control of foam phosphorus slag material is 550~600kg/m3。
7. a kind of method in foam phosphorus slag material filling mine according to claim 1, it is characterised in that: in step 4),
It pours as placement layer by layer, the foam a height of 0.9~1.1m of phosphorus slag material layer poured every time, the interval time that adjacent two layers pour is
6~8h.
8. a kind of method in foam phosphorus slag material filling mine according to claim 1, it is characterised in that: in step 4),
The outlet of pipeline and foam phosphorus slag material to pour face concordant.
9. a kind of method in foam phosphorus slag material filling mine according to claim 1, it is characterised in that: in step 5),
The number for adding water curing is that the time of water curing is added to be 2~3 days after the completion of pouring 2 times a day.
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| CN201711203799.4A CN107989651B (en) | 2017-11-27 | 2017-11-27 | A kind of method in foam phosphorus slag material filling mine |
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| CN101608484B (en) * | 2009-07-20 | 2011-10-05 | 贵州源隆新型环保墙体建材有限公司 | Phosphorous slag autoclave aerated concrete building block and preparation method thereof |
| CN101973747B (en) * | 2010-09-30 | 2012-10-31 | 昆明理工大学 | Method for preparing baking-free brick from yellow phosphorus slag and modified phosphogypsum |
| CN103588451B (en) * | 2013-11-26 | 2015-08-19 | 武汉工程大学 | A kind of phosphorus slag-phosphorus tailing foam concrete building block and preparation method thereof |
| CN103964804B (en) * | 2014-05-12 | 2016-01-20 | 中南大学 | A kind of low bleeding rate can pumping phosphogypsum and Phosphorus Slag fill paste and preparation method |
| CN105152601B (en) * | 2015-09-28 | 2017-07-18 | 太原理工大学 | A kind of preparation method of bastard coal ground mass mine cemented filling material |
| CN107265965B (en) * | 2016-04-08 | 2020-02-18 | 南京唯才新能源科技有限公司 | Aerogel foam concrete building block and preparation method thereof |
| CN106365567A (en) * | 2016-08-25 | 2017-02-01 | 马边瑞丰矿业有限责任公司 | Method of filling goaf formed after mine exploitation by means of phosphate tailings |
| CN106747632A (en) * | 2016-11-22 | 2017-05-31 | 贵州大学 | A kind of phosphorus slag, flyash and ardealite foam concrete |
| CN107162547B (en) * | 2017-05-04 | 2019-11-26 | 中南大学 | A kind of full phosphorus slag gelling filler and its application |
| CN107365094B (en) * | 2017-07-05 | 2019-11-05 | 固岩科技发展有限公司 | A kind of preparation method of mine filling slurry |
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