CN114262205A - Full-length anchoring agent for mine and preparation method thereof - Google Patents
Full-length anchoring agent for mine and preparation method thereof Download PDFInfo
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- CN114262205A CN114262205A CN202111579362.7A CN202111579362A CN114262205A CN 114262205 A CN114262205 A CN 114262205A CN 202111579362 A CN202111579362 A CN 202111579362A CN 114262205 A CN114262205 A CN 114262205A
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- 238000004873 anchoring Methods 0.000 title claims abstract description 54
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 78
- 239000000843 powder Substances 0.000 claims abstract description 46
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 40
- 239000000375 suspending agent Substances 0.000 claims abstract description 36
- 229920001971 elastomer Polymers 0.000 claims abstract description 30
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 26
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 26
- 239000003054 catalyst Substances 0.000 claims abstract description 21
- 239000003085 diluting agent Substances 0.000 claims abstract description 21
- 239000004094 surface-active agent Substances 0.000 claims abstract description 21
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052909 inorganic silicate Inorganic materials 0.000 claims abstract description 20
- 229920000642 polymer Polymers 0.000 claims abstract description 20
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 19
- 238000003756 stirring Methods 0.000 claims description 32
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- 238000004643 material aging Methods 0.000 claims description 12
- 238000004806 packaging method and process Methods 0.000 claims description 12
- -1 polymethylene Polymers 0.000 claims description 12
- 238000005065 mining Methods 0.000 claims description 10
- 229920006389 polyphenyl polymer Polymers 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 9
- 239000004814 polyurethane Substances 0.000 claims description 9
- 229920002635 polyurethane Polymers 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- 239000004115 Sodium Silicate Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 7
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 7
- 229910021485 fumed silica Inorganic materials 0.000 claims description 6
- 239000002244 precipitate Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 5
- 239000004579 marble Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000010453 quartz Substances 0.000 claims description 5
- 239000012970 tertiary amine catalyst Substances 0.000 claims description 5
- YSAANLSYLSUVHB-UHFFFAOYSA-N 2-[2-(dimethylamino)ethoxy]ethanol Chemical compound CN(C)CCOCCO YSAANLSYLSUVHB-UHFFFAOYSA-N 0.000 claims description 4
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 4
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 4
- 229920000053 polysorbate 80 Polymers 0.000 claims description 4
- 229920002545 silicone oil Polymers 0.000 claims description 4
- GTEXIOINCJRBIO-UHFFFAOYSA-N 2-[2-(dimethylamino)ethoxy]-n,n-dimethylethanamine Chemical compound CN(C)CCOCCN(C)C GTEXIOINCJRBIO-UHFFFAOYSA-N 0.000 claims description 3
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 claims description 3
- 239000004111 Potassium silicate Substances 0.000 claims description 3
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- ZXOATMQSUNJNNG-UHFFFAOYSA-N bis(oxiran-2-ylmethyl) benzene-1,3-dicarboxylate Chemical compound C=1C=CC(C(=O)OCC2OC2)=CC=1C(=O)OCC1CO1 ZXOATMQSUNJNNG-UHFFFAOYSA-N 0.000 claims description 3
- NEPKLUNSRVEBIX-UHFFFAOYSA-N bis(oxiran-2-ylmethyl) benzene-1,4-dicarboxylate Chemical compound C=1C=C(C(=O)OCC2OC2)C=CC=1C(=O)OCC1CO1 NEPKLUNSRVEBIX-UHFFFAOYSA-N 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 229960002887 deanol Drugs 0.000 claims description 3
- 239000012972 dimethylethanolamine Substances 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 239000010459 dolomite Substances 0.000 claims description 3
- 229910000514 dolomite Inorganic materials 0.000 claims description 3
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 claims description 3
- 229910052912 lithium silicate Inorganic materials 0.000 claims description 3
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 claims description 3
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- 238000011068 loading method Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 229920006027 ternary co-polymer Polymers 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 239000000243 solution Substances 0.000 description 22
- 229920003023 plastic Polymers 0.000 description 10
- 239000004033 plastic Substances 0.000 description 10
- 239000011435 rock Substances 0.000 description 7
- 239000000084 colloidal system Substances 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000003292 glue Substances 0.000 description 4
- 238000007596 consolidation process Methods 0.000 description 3
- 150000003384 small molecules Chemical class 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
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- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920001897 terpolymer Polymers 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
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- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 238000011049 filling Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- HAMGRBXTJNITHG-UHFFFAOYSA-N methyl isocyanate Chemical compound CN=C=O HAMGRBXTJNITHG-UHFFFAOYSA-N 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 125000005498 phthalate group Chemical group 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
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- 150000003512 tertiary amines Chemical class 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
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Abstract
The invention discloses a mine full-length anchoring agent and a preparation method thereof, wherein the mine full-length anchoring agent comprises the following components in parts by weight: the group A materials comprise the following components in parts by mass: 40-50 parts of polyisocyanate, 10-20 parts of reactive diluent, 1-3 parts of surfactant, 10-20 parts of anhydrous calcium chloride, 20-30 parts of aggregate and 5 parts of suspending agent; the group B materials comprise the following components in parts by mass: 40-50 parts of inorganic silicate solution, 12-22 parts of micromolecule alcohol, 0.1-0.5 part of polymer rubber powder, 0.1 part of catalyst, 2 parts of suspending agent and 30-40 parts of aggregate; the volume ratio of the component A to the component B is 1: 0.5-1. The invention solves the problems that the existing anchoring agent is inconvenient for anchoring the whole length of an anchor rod or an anchor cable, the anchoring force is reduced when the existing anchoring agent meets water, and the diffusibility is poor.
Description
Technical Field
The invention relates to the technical field of grouting materials in mine support, in particular to a mine full-length anchoring agent and a preparation method thereof.
Background
The rock mass is supported by using anchor rods and anchor cables in the construction of a plurality of mines, tunnels, side slopes and the like, namely, firstly, a chemical roll anchoring agent is filled into drilled holes, then one end of each anchor rod or anchor cable is filled into the drilled holes to feed the anchoring agent into the bottoms of the drilled holes, an anchor rod drilling machine is used for driving the rod bodies of the anchor rods or the anchor cables to rotate and stir the anchoring agent so as to ensure that the end parts of the anchor rods or the anchor cables take roots and are fixed in the rock, so that the anchor rods and the anchor cables can support surrounding rocks, the existing chemical roll anchoring agent is difficult to anchor the anchor rods or the anchor cables in the whole length, the anchoring construction difficulty is high, the anchoring agent cannot be filled into the drilled holes and only can anchor the end heads of the anchor rods or the anchor cables, the reliability of the end head anchoring support is poor, once the anchoring failure of the whole anchor rods or the anchor cables is caused, in addition, most of the anchoring of the end heads of the anchor rods are exposed, and the exposed parts are easily subjected to underground air, The corrosion damage such as water reduces life, and current anchoring agent meets the decline of water anchoring force and easily causes stock anchor rope to strut inefficacy simultaneously, and the poor surrounding rock around the drilling can not be consolidated to current anchoring agent diffusivity, has reduced the whole effect of strutting of stock anchor rope.
Disclosure of Invention
Based on the problems, the invention provides a full-length anchoring agent for mines, which solves the problems that the existing anchoring agent is inconvenient for full-length anchoring and use, and has reduced anchoring force and poor diffusivity when meeting water.
The technical scheme is as follows: a full length mining anchoring agent, wherein:
the group A materials comprise the following components in parts by mass:
40-50 parts of polyisocyanate, 10-20 parts of reactive diluent, 1-3 parts of surfactant, 10-20 parts of anhydrous calcium chloride, 20-30 parts of aggregate and 5 parts of suspending agent;
the group B materials comprise the following components in parts by mass:
40-50 parts of inorganic silicate solution, 12-22 parts of micromolecule alcohol, 0.1-0.5 part of polymer rubber powder, 0.1 part of catalyst, 2 parts of suspending agent and 30-40 parts of aggregate;
the volume ratio of the component A to the component B is 1: 0.5-1.
In one or more specific embodiments herein, the polyisocyanate is one or more of polyurethane blacks.
In one or more specific embodiments herein, the polyisocyanate is a polyphenyl polymethylene polyisocyanate.
In one or more specific embodiments herein, the reactive diluent is one or more of a phthalate, a diglycidyl isophthalate, or a diglycidyl terephthalate.
In one or more specific embodiments herein, the surfactant is silicone oil DC-193 or tween 80.
In one or more specific embodiments of the present application, the anhydrous calcium chloride is 400 mesh or larger.
In one or more specific embodiments of the present application, the aggregate is one or more of quartz powder, dolomite powder, marble powder, talc powder, zeolite powder, and calcined clay with a particle size of 400 mesh or larger.
In one or more specific embodiments of the present application, the suspending agent is nano-fumed silica.
In one or more specific embodiments of the present application, the inorganic silicate solution is one or more of a sodium silicate, potassium silicate, or lithium silicate solution of a specific modulus.
In one or more specific embodiments herein, the sodium silicate has a modulus of 2.0 to 3.6 and a baume of 30 to 45.
In one or more specific embodiments herein, the small molecule alcohol is one of ethylene glycol, diethylene glycol, or a mixture thereof.
In one or more specific embodiments of the present application, the polymer rubber powder is one or more of ethylene-vinyl acetate copolymer rubber powder, ethylene-vinyl chloride-vinyl laurate terpolymer rubber powder or acrylate-styrene copolymer rubber powder.
In one or more specific embodiments herein, the catalyst is a high activity polyurethane tertiary amine based catalyst.
In one or more specific embodiments of the present application, the high-activity polyurethane tertiary amine catalyst is one or more of dimethylaminoethoxyethanol, dimethylethanolamine and bis (dimethylaminoethyl) ether.
The invention also provides a method for preparing the mining full-length anchoring agent.
The method for preparing the full-length mining anchoring agent comprises the following steps:
preparing A component materials: at normal temperature, loading polyisocyanate, reactive diluent, surfactant and suspending agent into a reaction kettle and fully stirring; adding anhydrous calcium chloride and aggregate into the reaction kettle, uniformly stirring to obtain a component A material, and packaging the component A material into a container; .
Preparing the component B materials: at normal temperature, adding the small molecular alcohol and the catalyst into a reaction kettle and uniformly stirring; adding an inorganic silicate solution, polymer rubber powder and a suspending agent into a reaction kettle, uniformly stirring, adding aggregate into the reaction kettle, fully stirring to completely suspend precipitates to obtain a component B material, and packaging the component B material into a container;
thirdly, extruding the component A materials and the component B materials which are packaged by the container at the same time and mixing uniformly on the construction site to obtain the full-length anchoring and grouting agent, and then injecting the full-length anchoring and grouting agent into the drilled hole of the anchor rod or the anchor cable to realize full-length anchoring of the anchor rod or the anchor cable.
The invention has the beneficial effects that:
the waterproof adhesive has the advantages of waterproof function, strong permeability, high curing strength and good cohesiveness; anhydrous calcium chloride and nano fumed silica are added into the full-length anchoring agent, so that moisture can be absorbed, the influence of water is reduced, and the waterproof function of the material is realized; the surface active agent can obviously reduce the surface tension of the colloid, so that the colloid has strong permeability; inorganic aggregate is added to improve the strength of the solidified body, and the high-temperature resistance and the flame retardance are good; the raw materials are wide in source and easy to produce, and the cost is saved; the full-length anchoring and grouting agent adopts a matched injection gun to carry out full-length anchoring construction, and has flexible and convenient operation and high working efficiency.
Drawings
FIG. 1 is a block diagram of a full length anchor injection reagent.
Detailed Description
The invention will be further explained with reference to the drawings.
The examples provided herein are merely to further illustrate the invention and should not be construed as limiting the invention in any way.
It will be apparent to those skilled in the art that the materials and methods of operation used in the present invention are well known in the art, unless otherwise specified, in the following.
A full-length anchoring agent for mines is composed of a group A material and a group B material, wherein:
the group A materials comprise the following components in parts by mass:
40-50 parts of polyisocyanate, 10-20 parts of reactive diluent, 1-3 parts of surfactant, 10-20 parts of anhydrous calcium chloride, 20-30 parts of aggregate and 5 parts of suspending agent;
the group B materials comprise the following components in parts by mass:
40-50 parts of inorganic silicate solution, 12-22 parts of micromolecule alcohol, 0.1-0.5 part of polymer rubber powder, 0.1 part of catalyst, 2 parts of suspending agent and 30-40 parts of aggregate;
the volume ratio of the component A to the component B is 1: 0.5-1.
In a specific embodiment of the application, 40 parts of polyisocyanate of the material in the group A, 10 parts of reactive diluent, 1 part of surfactant, 10 parts of anhydrous calcium chloride, 20 parts of aggregate and 5 parts of suspending agent; 40 parts of inorganic silicate solution of the B group material, 12 parts of micromolecule alcohol, 0.1 part of polymer rubber powder, 0.1 part of catalyst, 2 parts of suspending agent and 30 parts of aggregate.
In another specific embodiment of the application, the component A comprises 45 parts of polyisocyanate of the component A, 15 parts of reactive diluent, 2 parts of surfactant, 15 parts of anhydrous calcium chloride, 25 parts of aggregate and 5 parts of suspending agent; 45 parts of inorganic silicate solution of the material B, 16 parts of micromolecular alcohol, 0.3 part of polymer rubber powder, 0.1 part of catalyst, 2 parts of suspending agent and 35 parts of aggregate.
In another specific embodiment of the present application, said polyisocyanate of group a materials is 50 parts, reactive diluent is 20 parts, surfactant is 3 parts, anhydrous calcium chloride is 20 parts, aggregate is 30 parts, suspending agent is 5 parts; 50 parts of inorganic silicate solution of the B group material, 22 parts of micromolecule alcohol, 0.5 part of polymer rubber powder, 0.1 part of catalyst, 2 parts of suspending agent and 40 parts of aggregate.
In one or more specific embodiments herein, the polyisocyanate is one of polyurethane blacks.
In one or more specific embodiments of the present application, the polyisocyanate is polyphenyl polymethylene polyisocyanate, and the polyphenyl polymethylene polyisocyanate has excellent adhesion with coal and rock mass, high strength of a solidified body, no foaming when meeting water, and good water plugging and reinforcing effects.
In one or more specific embodiments herein, the reactive diluent is one of phthalate, diglycidyl isophthalate, or diglycidyl terephthalate. The reactive diluent has good diluting capability, no prolonged crosslinking time, low freezing point and no pungent odor.
In one or more specific embodiments herein, the surfactant is silicone oil DC-193 or Tween 80 (TWEEN-80). The surface tension of the glue solution can be obviously reduced, the glue solution diffusivity is improved, and the glue solution can quickly and uniformly permeate into tiny cracks of the coal rock mass.
In this application, anhydrous calcium chloride can absorb moisture, reduces the moisture influence to realize the waterproof function of material.
In one or more specific embodiments of the present application, the aggregate is one or a mixture of more than 400 mesh quartz powder, dolomite powder, marble powder, talcum powder, zeolite powder and calcined clay, which can increase the strength and high temperature resistance of the solidified material.
In one or more specific embodiments of the present application, the suspending agent is nano fumed silica, and in the present application, the nano fumed silica can prevent agglomeration, prevent sedimentation, help flow to disperse, defoam, increase the stability of the glue solution, and the like, so that the colloid has good toughness, impact resistance, water resistance, heat resistance, and the like.
In one or more specific embodiments herein, the inorganic silicate solution is one of a sodium silicate, potassium silicate, or lithium silicate solution of a specific modulus, 2.5 to 4.5, and 35 to 45 baume.
In one or more specific embodiments herein, the small molecule alcohol is one or both of ethylene glycol, diethylene glycol.
In one or more specific embodiments of the present application, the polymer rubber powder is one of ethylene-vinyl acetate copolymer rubber powder, ethylene-vinyl chloride-vinyl orthosilicate terpolymer rubber powder or acrylate-styrene copolymer rubber powder, which can improve the bonding strength and toughness of a solidified body.
In one or more specific embodiments of the present application, the catalyst is a high-activity polyurethane tertiary amine catalyst, and the high-activity polyurethane tertiary amine catalyst is one or more of dimethylaminoethoxyethanol, dimethylethanolamine and bis (dimethylaminoethyl) ether.
A preparation method of a full-length anchoring agent for mines comprises the following steps:
preparing A component materials: at normal temperature, poly (phenyl polymethylene polyisocyanate), reactive diluent, surfactant and suspending agent are put into a reaction kettle and fully stirred; and adding anhydrous calcium chloride and aggregate into the reaction kettle, uniformly stirring to obtain a component A material, and packaging the component A material into a cylindrical plastic bottle.
Preparing the component B materials: at normal temperature, adding the small molecular alcohol and the catalyst into a reaction kettle and uniformly stirring; adding inorganic silicate solution, polymer rubber powder and a suspending agent into a reaction kettle, uniformly stirring, adding aggregate into the reaction kettle, fully stirring to completely suspend the precipitate to obtain a component B material, and packaging the component B material into a cylindrical plastic bottle.
Mixing the component A material and the component B material, fully mixing and stirring to prepare the colloid, wherein the colloid is the mining full-length anchoring agent.
In the step, the A component material and the B component material which are packaged by the cylindrical plastic bottles are respectively taken out, the AB cylindrical plastic bottles are simultaneously arranged in matched injection guns, mixers on the injection guns are connected with grouting pipes in holes of the anchor rods or the anchor cables, the injection guns are started to inject the AB materials, the AB materials are uniformly mixed by the mixers to obtain the full-length anchoring agent, and the full-length anchoring agent is injected into the drill holes of the anchor rods or the anchor cables to fill the drill holes with the full-length anchoring agent, so that the full-length anchoring and surrounding rock reinforcing requirements of the anchor rods or the anchor cables are met, and the supporting effect of the anchor rods or the anchor cables is improved.
In examples 1 to 3, which will be described later, poly (phenyl polymethylene isocyanate) (having an English name of poly (methyl isocyanate) and a density of 1.24g/ml (25 ℃), a viscosity of 0.15 to 0.45Pa.S (20 ℃), a fire point of 218 ℃, a freezing point of less than 10 ℃, an isocyanate content of not less than 30, and a hydrolytic chlorine content of not more than 0.2%) was used.
In the following examples 1-3, the reactive diluent is phthalate, which plays a cold-resistant and plasticizing role.
In examples 1 to 3 described below, the surfactant was silicone oil DC-193, which served as a wetting agent.
In examples 1 to 3 described below, the anhydrous calcium chloride had a mesh size of 400 mesh or more and exhibited a water-repellent effect.
In the following examples 1 to 3, the aggregate was a mixture of quartz powder, marble powder, and talc powder, and the weight ratio of quartz powder, marble powder, and talc powder was 1:1:2, which improved the strength of the consolidated body.
In the following examples 1-3, the suspending agent is fumed silica, which provides the colloid with good toughness, impact resistance, water resistance, heat resistance, etc.
In the following examples 1 to 3, the inorganic silicate solution was liquid sodium silicate (liquid sodium silicate having a modulus of 2.0 to 3.6 and a baume degree of 30 to 45).
In examples 1 to 3 described below, the small molecule alcohol was ethylene glycol.
In the following examples 1 to 3, the polymer rubber powder was ethylene-vinyl acetate copolymer rubber powder.
The catalyst is dimethylamino ethoxy ethanol.
Example 1
Preparing A component materials: 40 kg of polyphenyl polymethylene polyisocyanate, 10 kg of reactive diluent, 1 kg of surfactant, 10 kg of anhydrous calcium chloride, 20kg of aggregate and 5 kg of suspending agent are taken. At normal temperature, the polyphenyl polymethylene polyisocyanate, the reactive diluent, the surfactant and the suspending agent are put into a reaction kettle and fully stirred; and adding anhydrous calcium chloride and aggregate into the reaction kettle, uniformly stirring to obtain a component A material, and packaging the component A material into a cylindrical plastic bottle.
Preparing the component B materials: taking 40 kg of inorganic silicate solution, 12 kg of micromolecular alcohol, 0.1 kg of polymer rubber powder, 0.1 kg of catalyst, 2 kg of suspending agent and 30 kg of aggregate. At normal temperature, adding the small molecular alcohol and the catalyst into a reaction kettle and uniformly stirring; adding inorganic silicate solution, polymer rubber powder and a suspending agent into a reaction kettle, uniformly stirring, adding aggregate into the reaction kettle, fully stirring to completely suspend the precipitate to obtain a component B material, and packaging the component B material into a cylindrical plastic bottle.
Mixing the component A material and the component B material according to the volume ratio of the component A material to the component B material of 1:1, and fully and uniformly stirring in a stirrer to prepare the consolidation body.
The prepared solidification body is detected, and the result is as follows:
density of consolidated body: 1320kg \ m3。
Curing speed at 20 ℃: 5 minutes and 10 seconds.
Compressive strength: 44.6 MPa.
Bonding strength: 3.2 MPa.
The consolidated body test block produced by the method is shown in figure 1.
Example 2
Preparing A component materials: 45 kg of polyphenyl polymethylene polyisocyanate, 15 kg of reactive diluent, 2 kg of surfactant, 15 kg of anhydrous calcium chloride, 25 kg of aggregate and 5 kg of suspending agent are taken. At normal temperature, weighing polyphenyl polymethylene polyisocyanate, reactive diluent and surfactant, and filling the suspending agent into a reaction kettle for fully stirring; and adding the aggregate into the reaction kettle, uniformly stirring to obtain a component A material, and packaging the component A material into a cylindrical plastic bottle.
Preparing the component B materials: 45 kg of inorganic silicate solution, 16 kg of micromolecule alcohol, 0.3 kg of polymer rubber powder, 0.1 kg of catalyst, 2 kg of suspending agent and 35 kg of aggregate are taken. At normal temperature, adding the small molecular alcohol and the catalyst into a reaction kettle and uniformly stirring; then adding the inorganic silicate solution, the polymer rubber powder and the suspending agent into a reaction kettle, stirring uniformly, adding the aggregate into the reaction kettle, stirring fully to enable the precipitate to be suspended completely to obtain a B component material, and packaging the B component material into a cylindrical plastic bottle.
Mixing the component A material and the component B material according to the volume ratio of the component A material to the component B material of 1:1, and fully and uniformly stirring in a stirrer to prepare the consolidation body.
The prepared solidification body is detected, and the result is as follows:
density of consolidated body: 1360kg \ m3。
Curing speed at 20 ℃: 10 minutes 07 seconds.
Compressive strength: 48.2 MPa.
Bonding strength: 3.4 MPa.
Example 3
Preparing A component materials: 50 kg of polyphenyl polymethylene polyisocyanate, 20kg of reactive diluent, 3 kg of surfactant, 20kg of anhydrous calcium chloride, 30 kg of aggregate and 5 kg of suspending agent are taken. At normal temperature, the polyphenyl polymethylene polyisocyanate, the reactive diluent, the surfactant and the suspending agent are put into a reaction kettle and fully stirred; and adding the aggregate into the reaction kettle, uniformly stirring to obtain a component A material, and packaging the component A material into a cylindrical plastic bottle.
Preparing the component B materials: 50 kg of inorganic silicate solution, 22 kg of micromolecule alcohol, 0.5 kg of polymer rubber powder, 0.1 kg of catalyst, 2 kg of suspending agent and 40 kg of aggregate are taken. At normal temperature, adding the small molecular alcohol and the catalyst into a reaction kettle and uniformly stirring; then adding the inorganic silicate solution, the polymer rubber powder and the suspending agent into a reaction kettle, stirring uniformly, adding the aggregate into the reaction kettle, stirring fully to enable the precipitate to be suspended completely to obtain a B component material, and packaging the B component material into a cylindrical plastic bottle.
Mixing the component A material and the component B material according to the volume ratio of the component A material to the component B material of 1:1, and fully and uniformly stirring in a stirrer to prepare the consolidation body.
The prepared solidification body is detected, and the result is as follows:
density of consolidated body: 1390kg \ m3。
Curing speed at 20 ℃: 20 minutes 32 seconds
Compressive strength: 50.6 MPa.
Bonding strength: 3.8 MPa.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A full-length mining anchoring agent, which is characterized in that:
the group A materials comprise the following components in parts by mass:
40-50 parts of polyisocyanate, 10-20 parts of reactive diluent, 1-3 parts of surfactant, 10-20 parts of anhydrous calcium chloride, 20-30 parts of aggregate and 5 parts of suspending agent;
the group B materials comprise the following components in parts by mass:
40-50 parts of inorganic silicate solution, 12-22 parts of micromolecule alcohol, 0.1-0.5 part of polymer rubber powder, 0.1 part of catalyst, 2 parts of suspending agent and 30-40 parts of aggregate;
the volume ratio of the component A to the component B is 1: 0.5-1.
2. The full-length mining anchoring agent according to claim 1, wherein the polyisocyanate is one or more of polyurethane blacks.
3. The full-length mine anchoring agent according to any one of claims 1 to 2, wherein the polyisocyanate is a polyphenyl polymethylene polyisocyanate.
4. The mine full-length anchoring agent according to any one of claims 1 to 3, wherein the reactive diluent is one or more of phthalate, diglycidyl isophthalate or diglycidyl terephthalate.
5. The full-length mine anchoring agent according to any one of claims 1 to 4, wherein the surfactant is silicone oil DC-193 or Tween 80.
6. The mining full-length anchoring agent according to any one of claims 1 to 5, wherein the anhydrous calcium chloride is 400 mesh or more.
7. The mine full-length anchoring agent according to any one of claims 1 to 6, wherein the aggregate is one or more of quartz powder, dolomite powder, marble powder, talcum powder, zeolite powder and calcined pottery clay with a particle size of more than 400 meshes.
8. The mining full-length anchoring agent according to any one of claims 1 to 7, wherein the suspending agent is nano fumed silica.
9. The full-length mining anchoring agent according to any one of claims 1 to 7, wherein the inorganic silicate solution is one or more of sodium silicate, potassium silicate or lithium silicate solution with a specific modulus, preferably the sodium silicate has a modulus of 2.0 to 3.6 and a baume degree of 30 to 45; and/or
The small molecular alcohol is one or a mixture of ethylene glycol and diethylene glycol; and/or
The polymer rubber powder is one or more of ethylene-vinyl acetate copolymer rubber powder, ethylene-vinyl chloride-vinyl orthosilicate ternary copolymer rubber powder or acrylate-styrene copolymer rubber powder; and/or
The catalyst is a high-activity polyurethane tertiary amine catalyst; preferably, the high-activity polyurethane tertiary amine catalyst is one or more of dimethylaminoethoxyethanol, dimethylethanolamine and bis (dimethylaminoethyl) ether.
10. A method for preparing the full-length mining anchoring agent 1-9, which comprises the following steps:
preparing A component materials: at normal temperature, loading polyisocyanate, reactive diluent, surfactant and suspending agent into a reaction kettle and fully stirring; adding anhydrous calcium chloride and aggregate into the reaction kettle, uniformly stirring to obtain a component A material, and packaging the component A material into a container;
preparing the component B materials: at normal temperature, adding the small molecular alcohol and the catalyst into a reaction kettle and uniformly stirring; adding an inorganic silicate solution, polymer rubber powder and a suspending agent into a reaction kettle, uniformly stirring, adding aggregate into the reaction kettle, fully stirring to completely suspend precipitates to obtain a component B material, and packaging the component B material into a container;
thirdly, extruding the component A materials and the component B materials which are packaged by the container at the same time and mixing uniformly on the construction site to obtain the full-length anchoring and grouting agent, and then injecting the full-length anchoring and grouting agent into the drilled hole of the anchor rod or the anchor cable to realize full-length anchoring of the anchor rod or the anchor cable.
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