CN107117888A - One kind mining mixing aggregate filling slurry proportioning decision-making technique - Google Patents
One kind mining mixing aggregate filling slurry proportioning decision-making technique Download PDFInfo
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- CN107117888A CN107117888A CN201710463197.6A CN201710463197A CN107117888A CN 107117888 A CN107117888 A CN 107117888A CN 201710463197 A CN201710463197 A CN 201710463197A CN 107117888 A CN107117888 A CN 107117888A
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- 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
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- 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
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00198—Characterisation or quantities of the compositions or their ingredients expressed as mathematical formulae or equations
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Organic Chemistry (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses one kind mining mixing aggregate filling slurry proportioning decision-making technique, carry out the packing density test of mixing aggregate, the relation curve that mixing aggregate packing density is matched with coarse-fine aggregate is drawn, the corresponding coarse-fine aggregate proportioning of maximum packing density is obtained；Carry out the orthogonal test of intensity orthogonal test and filling slurry slump, fluidity, delamination degree and the bleeding rate of different gel material contents and the cemented fill of mass concentration, set up cemented fill intensity and filling slurry pipeline characterisitic parameter and gel material content, the functional relation of mass concentration, using filling slurry material cost as decision objective, with cemented fill design strength, and the critical value of filling slurry pipeline or pumping performance parameter is constraints, the decision model of mixing aggregate filling slurry proportioning is set up；Decision model is solved, gel material content and mass concentration is obtained.The present invention can reduce mining with stowing cost, reduce solid waste discharge.
Description
Technical field
The present invention relates to mining with stowing field, and in particular to one kind mining barren rock coarse aggregate filling slurry proportioning decision-making party
Method.
Background technology
Barren rock, waste residue, waste water, tailings the like waste can be backfilling into Goaf Area by filling method mining, can not only be had
Effect control stope ground pressure, control subsidence and strata movement, but also discarded object stacking can be reduced, realize without useless or few useless
Green resource is developed with comprehensively utilizing, so that environmental protection and control geological disaster.The method of mining by the way of filling is by filling aggregate, be gelled material
Material and water, mixing and uniform stirring, are prepared into and meet mine filler design strength and pipeline condition according to a certain ratio
Filling slurry, by filling pipeline, gravity flow or pump pressure be transported to underground mining stope.Current filling method mining it is main using cement as
Binder materials, filling aggregate is used as using tailings or rod milling sand.Compared with other mining methods, method of mining by the way of filling mining cost height,
Production capacity is low and process for stoping is complicated, therefore mining with stowing deficiency in economic performance, is influence method of mining by the way of filling popularization and application
Key point.The frosted of barren rock replacement bar is dug up mine applied to filling method, cemented fill intensity can be not only improved, and can also
Waste discharge is enough reduced, is filling method mining research and development direction.
Engineering practice shows that barren rock coarse aggregate filling slurry has laminated segregation technical problem, causes slurry defeated in pipeline
Plugging, booster during sending；It is uneven that slurry laminated segregation also results in cemented fill intensity, reduction cemented fill intensity and
Resistance to overturning；Filling slurry mobility is deteriorated simultaneously, causes Tight filling rate low, potential filling Stope roof sedimentation, earth's surface
Rock, which is moved, even collapses etc. geological disaster.
The content of the invention
Matched in view of the above-mentioned problems of the prior art, the present invention provides a kind of mining with barren rock coarse aggregate filling slurry
Decision-making technique, this method mixes a certain proportion of fine aggregate in barren rock, adjusts combined aggregate grading, matches somebody with somebody while optimizing slurry
Than realizing the upper flow regime conveying of mixing aggregate filling slurry high concentration.
Above-mentioned purpose is realized by following proposal：
One kind mining mixing aggregate filling slurry proportioning decision-making technique, it is characterised in that this method comprises the following steps：
(1) barren rock coarse aggregate is mixed with fine aggregate with different ratio, carries out the packing density test of mixing aggregate, according to
Test result, draws the relation curve that mixing aggregate packing density is matched with coarse-fine aggregate, obtains maximum packing density pair
The coarse-fine aggregate proportioning answered；
(2) gel material content and mass concentration of selection mixing aggregate filling slurry are joined as filling slurry proportioning decision-making
Number；The proportioning of the coarse-fine aggregate obtained according to step (1), carries out different gel material contents and the cemented fill of mass concentration
3d, 7d, 28d intensity orthogonal test；According to orthogonal experiments, using statistical regression analysis method, cemented fill is set up
Intensity and gel material content and the functional relation of mass concentration；
(3) proportioning of the coarse-fine aggregate obtained according to step (1), carries out filling for different gel material contents and mass concentration
Extender paste slump, fluidity, the orthogonal test of delamination degree and bleeding rate；According to orthogonal experiments, using statistical regression point
Analysis method, sets up slump, fluidity, delamination degree, bleeding rate and the gel material content of filling slurry and the letter of mass concentration
Number relation；
(4) requirement for filling or pumping filling is conveyed according to mine pipeline self, determines that cemented fill 3d, 7d, 28d are set
Count intensity, and filling slurry slump, fluidity, delamination degree, bleeding rate critical value；Using filling slurry material cost as certainly
Plan target, with cemented fill 3d, 7d, 28d design strength, and filling slurry slump, fluidity, delamination degree, bleeding rate
Critical value be constraints, set up the decision model of mixing aggregate filling slurry proportioning；Mixing aggregate filling slurry is solved to match somebody with somebody
The decision model of ratio, obtains gel material content and mass concentration, that is, obtains the proportioning of mixing aggregate filling slurry.
Beneficial effects of the present invention：
The present invention applies the technical barriers such as the laminated segregation existed for barren rock coarse aggregate in mining with stowing, fills thin bone
The size grading of material adjustment barren rock coarse aggregate, optimization mixing aggregate filling slurry proportioning and the control of slurry pipeline, are realized
Filling slurry high concentration and upper flow regime pipeline.The present invention can solve the problem that barren rock coarse aggregate is safe efficient in mining with stowing
With low-cost industrial application, mining with stowing cost can not only be reduced, mining economic benefit is improved, but also can reduce solid
Body waste discharge, so that environmental protection and realization are without useless lasting exploit.
Brief description of the drawings
Fig. 1 is the packing density and the relation curve of coarse-fine aggregate proportioning of mixing aggregate in embodiment.
Embodiment
The mining mixing aggregate filling slurry proportioning decision-making technique of the present invention comprises the following steps：
(1) barren rock coarse aggregate is mixed with fine aggregate with different ratio, carries out the packing density test of mixing aggregate, according to
Test result, draws the relation curve that mixing aggregate packing density is matched with coarse-fine aggregate, obtains maximum packing density pair
The coarse-fine aggregate proportioning answered.
(2) gel material content and mass concentration of selection mixing aggregate filling slurry are joined as filling slurry proportioning decision-making
Number.The proportioning of the coarse-fine aggregate obtained according to step (1), carries out different gel material contents and the cemented fill of mass concentration
3d, 7d, 28d intensity orthogonal test.According to orthogonal experiments, using statistical regression analysis method, cemented fill is set up
Intensity and gel material content and the functional relation of mass concentration.
(3) proportioning of the coarse-fine aggregate obtained according to step (1), carries out filling for different gel material contents and mass concentration
Extender paste slump, fluidity, the orthogonal test of delamination degree and bleeding rate.According to orthogonal experiments, using statistical regression point
Analysis method, sets up slump, fluidity, delamination degree, bleeding rate and the gel material content of filling slurry and the letter of mass concentration
Number relation.
(4) requirement for filling or pumping filling is conveyed according to mine pipeline self, determines that cemented fill 3d, 7d, 28d are set
Count intensity, and filling slurry slump, fluidity, delamination degree, bleeding rate critical value.Using filling slurry material cost as certainly
Plan target, with cemented fill 3d, 7d, 28d design strength, and filling slurry slump, fluidity, delamination degree, bleeding rate
Critical value be constraints, set up the decision model of mixing aggregate filling slurry proportioning.Mixing aggregate filling slurry is solved to match somebody with somebody
The decision model of ratio, obtains gel material content and mass concentration, that is, obtains the proportioning of mixing aggregate filling slurry.
Technical barrier of the present invention for barren rock coarse aggregate in mining with stowing using presence, has invented admixture certain proportion
Fine aggregate adjustment combined aggregate grading with optimization slurry proportioning and applied pipeline transportation method, realize mixing aggregate filling slurry it is highly concentrated
Spend upper flow regime conveying.Packing density experiment is carried out for different proportion thickness mixing aggregate.It is former according to maximum packing density
Then determine the rational proportion of barren rock and fine aggregate.On the basis of mixing aggregate proportioning, mixing aggregate filling slurry is carried out cementing
Strength of filling mass is tested and the test of pipeline characterisitic parameter, and using statistical regression analysis method, mixing aggregate glue is set up respectively
Tie strength of filling mass and the defeated characteristic of mixed slurry pipe and gel material content, the functional relation of mass concentration.Filled with mixing aggregate
Extender paste material cost is decision objective, using cemented fill intensity and pipeline characterisitic parameter as constraints, is set up
Mix aggregate filling slurry proportioning decision model.By solving, acquisition meets mine cemented filling body intensity and pipeline bar
The filling slurry rational proportion of part.
Explanation is further explained to the present invention below by specific embodiment.
Embodiment 1
Step 1. barren rock coarse aggregate and fine aggregate rational proportion decision-making.
It is comprised the following steps that：
(1) by barren rock coarse aggregate, mix, carry out thick with fine aggregate (tailings, copper ashes tailings, flyash or agstone etc.)
Aggregate and fine aggregate mass ratio are respectively 1:9、2:8、3:7、4:6、5:5、4:6、7:3、8:2、9:1 totally 9 kinds proportioning mixing bone
Expect packing density test, be derived from the packing density test result of 9 groups of mixing aggregates, Φi(i=1,9)；
(2) according to mixing aggregate packing density result of the test, mixing aggregate packing density Φ is drawniWith thick, thin bone
Expect match ratio xiRelation curve it is as shown in Figure 1.
(3) it is theoretical according to mixing aggregate packing density, by maximum packing density Φmax, corresponding coarse aggregate and thin bone
Material proportioning xop, so that the coarse-fine aggregate obtained in the proportioning of barren rock coarse aggregate and fine aggregate, this example under maximum packing density is matched somebody with somebody
Than for barren rock：Tailings=7：3.
Step 2. sets up mixing aggregate cemented fill intensity and gel material content and the functional relation of mass concentration.
Its specific implementation step is as follows：
(1) determine that mixed filling slurry matches decision parameters：Selection mixing aggregate filling slurry gel material content and
Mass concentration matches decision parameters as filling slurry.
(2) mixing aggregate cemented fill strength test is carried out：In the barren rock coarse aggregate and the proportioning of fine aggregate of step 1
On the basis of, carry out 2 factors of gel material content and mass concentration and carry out 3 levels (orthogonal horizontal of gel material content is
270kg/m3、290kg/m3And 310kg/m3；The orthogonal horizontal of mass concentration is：77%th, 79% and cemented fill 81%)
Intensity orthogonal test, is derived from 9 groups of cemented fill 3d, 7d, 28d compressive strength test results.
(3) according to mixing aggregate cemented fill intensity orthogonal experiments, using statistical regression analysis method, glue is set up
Tie strength of filling mass and gel material content and the functional relation of mass concentration：
R3d=f3(z1,z2) (1)
R7d=f7(z1,z2) (2)
R28d=f28(z1,z2) (3)
In formula：R3d、R7d、R28d--- mixing aggregate cemented fill 3d, 7d, 28d compression strength, MPa；
f3(z1,z2)、f7(z1,z2)、f28(z1,z2) --- mixing aggregate cemented fill 3d, 7d, 28d compression strength with
The function of gel material content and mass concentration；
z1、z2--- the gel material content and mass concentration of mixing aggregate filling slurry.
Step 3. sets up mixing aggregate filling slurry pipeline characterisitic parameter and gel material content and mass concentration
Functional relation.
Its specific implementation step is as follows：
(1) mixed filling slurry pipeline characterisitic parameter is tested：In the barren rock coarse aggregate and the proportioning of fine aggregate of step 1
On the basis of, the mixing aggregate for carrying out 2 levels of factor 3 (orthogonal horizontal is with step 2) of gel material content and mass concentration fills
Extender paste pipeline characteristic orthogonal test, obtains mixing aggregate filling slurry slump, fluidity, delamination degree and bleeding rate
Result of the test.
(2) according to the result of the test of mixing aggregate filling slurry slump, fluidity, delamination degree and bleeding rate, using system
Count regression analysis, set up mixed filling slurry slump, fluidity, delamination degree and bleeding rate and gel material content and
The functional relation of mass concentration：
S=g1(z1,z2) (4)
L=g2(z1,z2) (5)
F=g3(z1,z2) (6)
M=g4(z1,z2) (7)
In formula：S, L, F --- slump, fluidity and the delamination degree of mixing aggregate filling slurry, cm；
M --- the bleeding rate of mixing aggregate filling slurry, %；
g1(z1,z2),g2(z1,z2),g3(z1,z2),g4(z1,z2) --- the slump of mixing aggregate filling slurry, flowing
Degree, delamination degree, secret water rate and gel material content, the function of mass concentration；
z1、z2--- the gel material content and mass concentration of mixing aggregate filling slurry.
Step 4. is set up mixing aggregate filling slurry proportioning decision model and solved.
Its specific implementation step is as follows：
(1) mixing aggregate filling slurry proportioning decision function is set up.To mix aggregate filling slurry material cost as decision-making
Target, sets up mixing aggregate filling slurry proportioning decision function：
In formula：CT--- unit volume mixed filling material cost, member/m3；
ei(i=1,2,3,4) --- barren rock coarse aggregate, fine aggregate, the cost of binder materials and water, member/t；
bi(i=1,2,3,4) --- barren rock coarse aggregate, fine aggregate, the consumption of binder materials and water, kg/m3, and meet：
(2) mixing aggregate filling slurry proportioning decision-making constraint function is set up.Filling or pump are conveyed according to mine pipeline self
The requirement of filling is sent, cemented fill design strength is determined, and filling slurry slump, fluidity, delamination degree and bleeding rate
Critical value, thus sets up mixing aggregate filling slurry proportioning decision-making constraints：
R3d＞ ([R3d]=1.5), R7d＞ ([R7d]=2.5), R28d＞ ([R28d]=5) (9)
27.5 ＞ S ＞ ([S]=23), ([L1＞ L the ＞ ([L of]=12)2]=7.5),
([F]=2) ＞ F ＞ 0, ([M]=10) ＞ M ＞ 0 (10)
In formula：[R3d]、[R7d]、[R28d] --- filling mine cemented filling body design strength, MPa；
[S], [L], [F] --- filling slurry slump, fluidity and the delamination degree for meeting mobility and stability are faced
Dividing value, cm；
[M] --- meet the critical value of the filling slurry bleeding rate of filling slurry stable condition, %.
(3) mixing aggregate filling slurry proportioning decision model is solved.Formula (8)~(10) decision model is solved using optimized algorithm
Type, the final proportioning parameter for obtaining mixing aggregate filling slurry：Gel material content is 310kg/m3, mass concentration is 81%.
Claims (1)
1. one kind mining mixing aggregate filling slurry proportioning decision-making technique, it is characterised in that this method comprises the following steps：
(1) barren rock coarse aggregate is mixed with fine aggregate with different ratio, carries out the packing density test of mixing aggregate, according to test
As a result, the relation curve that mixing aggregate packing density is matched with coarse-fine aggregate is drawn, obtains maximum packing density corresponding
Coarse-fine aggregate is matched；
(2) gel material content and mass concentration of selection mixing aggregate filling slurry match decision parameters as filling slurry；
The cemented fill of the proportioning of the coarse-fine aggregate obtained according to step (1), the different gel material contents of development and mass concentration
3d, 7d, 28d intensity orthogonal test；According to orthogonal experiments, using statistical regression analysis method, cemented fill is set up strong
Degree and gel material content and the functional relation of mass concentration；
(3) proportioning of the coarse-fine aggregate obtained according to step (1), carries out the casting resin of different gel material contents and mass concentration
Starch the orthogonal test of slump, fluidity, delamination degree and bleeding rate；According to orthogonal experiments, using statistical regression analysis side
Method, sets up slump, fluidity, delamination degree, bleeding rate and the gel material content of filling slurry and the function of mass concentration is closed
System；
(4) requirement for filling or pumping filling is conveyed according to mine pipeline self, determines that cemented fill 3d, 7d, 28d design are strong
Degree, and filling slurry slump, fluidity, delamination degree, bleeding rate critical value；Using filling slurry material cost as decision-making mesh
Mark, with cemented fill 3d, 7d, 28d design strength, and filling slurry slump, fluidity, delamination degree, bleeding rate face
Dividing value is constraints, sets up the decision model of mixing aggregate filling slurry proportioning；Solve mixing aggregate filling slurry proportioning
Decision model, obtains gel material content and mass concentration, that is, obtains the proportioning of mixing aggregate filling slurry.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917836A (en) * | 2017-12-08 | 2018-04-17 | 河南理工大学 | The preparation facilities of filler experiment of machanics standard specimen and the method that standard specimen is made using the device |
| CN109989786A (en) * | 2019-05-21 | 2019-07-09 | 东华理工大学 | Barren rock-tailings high dense fill slurry yield stress prediction model method for building up and application |
| CN110781587A (en) * | 2019-10-16 | 2020-02-11 | 北京科技大学 | Multi-objective optimization method for anti-segregation waste rock filling slurry by using low-quality solid waste |
| CN111170707A (en) * | 2020-02-12 | 2020-05-19 | 河北钢铁集团矿业有限公司 | Filling slurry optimization method for mining waste rock by downward layered filling method |
| CN111191387A (en) * | 2020-02-12 | 2020-05-22 | 河北钢铁集团矿业有限公司 | Phosphogypsum-based cementing material optimization method for improving filling roof contact rate |
| CN111370076A (en) * | 2020-02-12 | 2020-07-03 | 河北钢铁集团矿业有限公司 | Filling slurry proportion optimization method for subsequent filling method mining |
| CN113187543A (en) * | 2021-05-28 | 2021-07-30 | 金川镍钴研究设计院有限责任公司 | Cemented filling method using waste rock machine-made sand as aggregate |
| CN117217626A (en) * | 2023-11-09 | 2023-12-12 | 济宁矿业集团有限公司霄云煤矿 | Intelligent mining method based on green environmental protection |
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| CN103723967A (en) * | 2013-12-27 | 2014-04-16 | 金川集团股份有限公司 | Mining filling cementing material ratio decision-making method |
| CN106746946A (en) * | 2016-11-16 | 2017-05-31 | 玉溪矿业有限公司 | A kind of method of Optimization Packing material proportioning |
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| CN103723967A (en) * | 2013-12-27 | 2014-04-16 | 金川集团股份有限公司 | Mining filling cementing material ratio decision-making method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917836A (en) * | 2017-12-08 | 2018-04-17 | 河南理工大学 | The preparation facilities of filler experiment of machanics standard specimen and the method that standard specimen is made using the device |
| CN109989786A (en) * | 2019-05-21 | 2019-07-09 | 东华理工大学 | Barren rock-tailings high dense fill slurry yield stress prediction model method for building up and application |
| CN110781587A (en) * | 2019-10-16 | 2020-02-11 | 北京科技大学 | Multi-objective optimization method for anti-segregation waste rock filling slurry by using low-quality solid waste |
| CN110781587B (en) * | 2019-10-16 | 2020-09-18 | 北京科技大学 | Multi-objective optimization method for anti-segregation waste rock filling slurry by using low-quality solid waste |
| CN111170707A (en) * | 2020-02-12 | 2020-05-19 | 河北钢铁集团矿业有限公司 | Filling slurry optimization method for mining waste rock by downward layered filling method |
| CN111191387A (en) * | 2020-02-12 | 2020-05-22 | 河北钢铁集团矿业有限公司 | Phosphogypsum-based cementing material optimization method for improving filling roof contact rate |
| CN111370076A (en) * | 2020-02-12 | 2020-07-03 | 河北钢铁集团矿业有限公司 | Filling slurry proportion optimization method for subsequent filling method mining |
| CN113187543A (en) * | 2021-05-28 | 2021-07-30 | 金川镍钴研究设计院有限责任公司 | Cemented filling method using waste rock machine-made sand as aggregate |
| CN113187543B (en) * | 2021-05-28 | 2023-09-05 | 金川镍钴研究设计院有限责任公司 | Cemented filling method using waste stone machine-made sand as aggregate |
| CN117217626A (en) * | 2023-11-09 | 2023-12-12 | 济宁矿业集团有限公司霄云煤矿 | Intelligent mining method based on green environmental protection |
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