CN116003024B - High-strength separation layer grouting material and mixing device thereof - Google Patents
High-strength separation layer grouting material and mixing device thereof Download PDFInfo
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- CN116003024B CN116003024B CN202211489111.4A CN202211489111A CN116003024B CN 116003024 B CN116003024 B CN 116003024B CN 202211489111 A CN202211489111 A CN 202211489111A CN 116003024 B CN116003024 B CN 116003024B
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- 238000002156 mixing Methods 0.000 title claims abstract description 120
- 239000000463 material Substances 0.000 title claims abstract description 80
- 238000000926 separation method Methods 0.000 title claims abstract description 34
- 235000014653 Carica parviflora Nutrition 0.000 claims abstract description 55
- 241000243321 Cnidaria Species 0.000 claims abstract description 55
- 239000002893 slag Substances 0.000 claims abstract description 39
- 239000012615 aggregate Substances 0.000 claims abstract description 29
- 239000010883 coal ash Substances 0.000 claims abstract description 28
- 239000000843 powder Substances 0.000 claims abstract description 26
- 239000000835 fiber Substances 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000005086 pumping Methods 0.000 claims abstract description 20
- 239000004568 cement Substances 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 239000003381 stabilizer Substances 0.000 claims abstract description 13
- 239000002002 slurry Substances 0.000 claims description 37
- 238000003756 stirring Methods 0.000 claims description 19
- 239000002994 raw material Substances 0.000 claims description 17
- 238000002360 preparation method Methods 0.000 claims description 11
- 238000007790 scraping Methods 0.000 claims description 11
- 229920002748 Basalt fiber Polymers 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical group [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 5
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000007580 dry-mixing Methods 0.000 claims description 2
- 238000007873 sieving Methods 0.000 claims description 2
- 230000032798 delamination Effects 0.000 claims 1
- 238000007711 solidification Methods 0.000 abstract description 9
- 230000008023 solidification Effects 0.000 abstract description 9
- 239000011148 porous material Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 239000004566 building material Substances 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 19
- 238000004537 pulping Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 238000005065 mining Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000011362 coarse particle Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention relates to the technical field of building materials, in particular to a high-strength separation layer grouting material and a mixing device thereof. The grouting material comprises coral aggregate, cement, slag, water-washed coal ash, water, coral powder, fiber yarns, curing agent and stabilizing agent. The mixing device comprises a mixing box, a hollow rotating shaft is rotatably arranged in the mixing box, a mixing assembly is arranged on the rotating shaft, a supporting frame is arranged below the mixing box, a driving motor is arranged on the supporting frame, belt pulleys are arranged at the lower end of the rotating shaft and the output end of the driving motor, belts are sleeved on the two belt pulleys together, a pulp pumping hole is formed in the lower end of the rotating shaft, a pulp pumping pipe is rotatably arranged at the upper end of the rotating shaft, and the lower end of the pulp pumping pipe is communicated with the inside of the mixing box through the pulp pumping hole. The invention uses porous materials and fiber yarns to improve the strength and stability after solidification; the special mixing device is used for improving the mixing effect and further improving the solidification strength of the separation layer grouting material.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a high-strength separation layer grouting material and a mixing device thereof.
Background
In the construction engineering, the grouting technology is a production technology for injecting a curable grouting material into a stratum crack or a pore, so that the curable grouting material plays roles of filling and solidifying after being cured, and the purposes of water shutoff, reinforcement and the like are realized. When mining exploitation is performed, the direct roof and the old roof deform to different degrees along with the pushing of the working face, separation layers with certain gaps are separated from each other, grouting operation is performed on the separation layers to ensure the safety of mining exploitation, and firmness is improved to ensure that the direct roof does not collapse in advance.
In the prior art, grouting materials used in the grouting technology can be divided into particle slurry, chemical slurry and fine mineral slurry, and the prior industrial production mainly uses the particle grouting materials based on the requirements on cost, environmental pollution and the like, and the particle grouting materials comprise single-liquid cement slurry, clay cement slurry, cement-water glass slurry and the like. The components and the preparation process of the partial grouting material are adjusted aiming at the separation layer grouting operation, so that the separation layer grouting material which has no pollution to the components, strong fluidity and short setting time and is convenient to use in the separation layer grouting operation is produced.
However, the existing separation layer grouting material can enable the direct roof and the old roof to be connected and fixed to a certain extent, but the problems of lower strength and poor stability after solidification still exist, and the problems of insufficient mixing among raw materials and uneven slurry components often exist in the grouting material preparation, so that the grouting operation is inconvenient, the strength of the grouting material after solidification is further reduced, the connection between the direct roof and the old roof is not firm, and potential safety hazards are generated.
Disclosure of Invention
Aiming at the technical problems that the separation layer grouting material for mining is easy to mix insufficiently and the strength of the grouting material is reduced after solidification in the preparation process, the invention provides the high-strength separation layer grouting material and the mixing device thereof, and the porous material and the fiber yarn are used in the raw materials, so that the components are combined more tightly during solidification, the strength and the stability after solidification are improved, and the direct roof and the old roof are tightly connected; the raw materials comprise mining waste materials, so that waste utilization is realized; and the special mixing device is used for fully mixing the raw materials, so that the mixing effect is improved, and the solidification strength of the separation layer grouting material is further improved.
In a first aspect, the invention provides a high-strength separation layer grouting material, which comprises main materials, auxiliary materials and auxiliary agents, wherein the main materials comprise coral aggregate, cement, slag, water-washed coal ash and water, the coral aggregate and the water-washed coal ash are porous materials, the porosity is high, and the coral aggregate and the water-washed coal ash are fully mixed with other materials and then solidified, so that other components are easy to enter the pores to be tightly combined, and the stability is improved; the auxiliary materials comprise coral powder and fiber yarns, which are small-particle materials, are fully mixed and solidified to fill gaps among large particles, and the fiber yarns have high binding force in the slurry, so that the strength can be further improved; the auxiliary agent comprises a curing agent and a stabilizing agent; the preparation method comprises the steps of fully mixing the raw materials except water to obtain mixed dry materials, and then adding water into the mixed dry materials to prepare slurry so as to obtain the high-strength separation layer grouting material.
Further, the fiber filaments are basalt fiber filaments, the curing agent is epoxy resin, and the stabilizer is sodium polyacrylate.
Further, the raw materials comprise the following components in percentage by weight: 10-15 parts of coral aggregate, 30-45 parts of cement, 15-20 parts of slag, 8-22 parts of water-washed coal ash, 40-50 parts of water, 5-10 parts of coral powder, 5-8 parts of fiber, 3-5 parts of curing agent and 2-6 parts of stabilizer.
Further, the mesh numbers of the coral aggregate, the cement and the slag are all 70-80 meshes, the mesh number of the coral powder is 120-150 meshes, and the length of the fiber filaments is less than or equal to 5mm.
Further, the method comprises the steps of,
The preparation method comprises the following steps:
S1, crushing and sieving coral aggregate, slag, water-washed coal ash and coral powder to obtain coral aggregate, slag and water-washed coal ash with the mesh number of 70-80 meshes and coral powder with the mesh number of 120-150 meshes; cutting and crushing the fiber yarn, and controlling the length of the fiber yarn to be below 5 mm;
s2, dry-mixing coral aggregate, cement, slag, water-washed coal ash, coral powder and fiber, gradually adding a curing agent and a stabilizing agent in the stirring process, and fully mixing to obtain a mixed dry material, wherein the mixing and stirring speed is controlled at 40-55r/min;
And S3, stirring and mixing water in the raw materials and the mixed dry materials to form slurry.
The invention provides a mixing device for the high-strength separation-layer grouting materials, which comprises a mixing box, wherein a hollow rotating shaft is rotatably arranged in the mixing box, a mixing assembly is fixedly arranged on the rotating shaft in a circumferential array, the lower end of the mixing assembly is contacted with the lower surface in the mixing box, a supporting frame is fixedly arranged below the mixing box, a driving motor is fixedly arranged on the supporting frame, belt pulleys are fixedly arranged at the lower end of the rotating shaft and the output end of the driving motor, belts are jointly sleeved on the two belt pulleys, slurry pumping holes are uniformly formed in the lower end of the rotating shaft, a slurry pumping pipe is rotatably arranged at the upper end of the rotating shaft, and the lower end of the slurry pumping pipe is communicated with the interior of the mixing box through the slurry pumping holes.
Further, the upper end of the interior of the mixing box is uniformly and fixedly provided with a connecting rod, one end of the connecting rod is fixedly connected with a slurry pumping pipe, the lower end of the slurry pumping pipe is fixedly provided with a plane bearing, and the slurry pumping pipe is rotationally connected with the rotating shaft through the plane bearing.
Further, the mixing assembly comprises a fixed rod, one end of the fixed rod is fixedly connected with the rotating shaft, a scraping plate is fixedly installed below the fixed rod, the lower end of the scraping plate is in contact with the inner lower surface of the mixing box, the scraping plate is of an inclined structure, vertical plates are fixedly installed at two ends of the upper portion of the fixed rod, a rotating rod is installed between the vertical plates in a rotating mode, and the mixing rod is uniformly and fixedly installed on the outer cylindrical surface of the rotating rod. When the rotating shaft rotates, the inclined scraping plate is convenient for pushing the materials in the mixing box to the center.
Further, fixed bevel gears are fixedly arranged at the middle position of the slurry pumping pipe, one end of the rotating rod, which is close to the slurry pumping pipe, is fixedly provided with the rotating bevel gears, the rotating bevel gears are meshed with the fixed bevel gears, a scattering rod is uniformly and fixedly arranged on one side of the fixed rod, and a splash-proof plate with an arc-shaped structure is fixedly arranged between the upper ends of the two vertical plates.
The invention has the beneficial effects that:
(1) According to the high-strength separation layer grouting material provided by the invention, the coral aggregate, the water-washing coal ash slag and other porous materials are used as raw materials, so that small particle components such as cement, fiber and the like can easily enter the inside of pores to be tightly combined when being solidified, and meanwhile, the fiber is used for improving the binding force, obviously improving the solidification strength and stability, and can improve the connection tightness of a direct roof and an old roof when being applied to separation layer grouting.
(2) The high-strength separation layer grouting material provided by the invention adopts slag and water-washed coal ash slag as raw materials, belongs to mining waste materials, and is easy to obtain and realize waste utilization on one hand; on the other hand, the components of the original geological layer of the grouting material are similar, and the grouting material is more easily and tightly combined with the direct roof and the old roof; meanwhile, the material is natural, and the pollution to the stratum is avoided;
(3) The mixing device for the high-strength separation layer grouting material provided by the invention has the advantages that the raw materials are fully mixed through the mixing component, the mixing effect is improved, and meanwhile, the slurry pumping pipe and the matched structure are arranged, so that the slurry can be pumped out quickly after the slurry is prepared, the operation is convenient, and the use is convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic view of the structure of a mixing apparatus of example 1.
Fig. 2 is a schematic diagram showing the overall structure of the mixing device of example 1 after being turned over.
FIG. 3 is a schematic view showing the structure of the mixing apparatus of example 1 with the mixing tank removed.
Fig. 4 is a schematic structural diagram of a mixing assembly and a rotating shaft of the mixing device of embodiment 1.
Fig. 5 is a schematic view showing the overall structure of a mixing assembly of the mixing device of example 1.
Fig. 6 is a schematic structural view of a rotation shaft of the mixing device of embodiment 1.
In the figure, 1, a mixing box; 2. a rotating shaft; 3. a mixing assembly; 301. a fixed rod; 302. a scraper; 303. a vertical plate; 304. a rotating lever; 305. a mixing rod; 306. rotating the bevel gear; 307. scattering the rods; 308. a splash shield; 4. a support frame; 5. a driving motor; 6. a belt pulley; 7. a belt; 8. a pulp pumping hole; 9. a pulp pumping pipe; 10. a connecting rod; 11. a planar bearing; 12. and fixing the bevel gear.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
Example 1
The utility model provides a novel separation layer grouting material's preparation technology's device, including mixing box 1, mixing box 1's inside rotates installs hollow axis of rotation 2, be circumference array fixed mounting on axis of rotation 2 and have mixed subassembly 3, mixed subassembly 3's lower extreme and the inside lower surface of mixing box 1 contact, mixing box 1's below fixed mounting has support frame 4, fixed mounting has driving motor 5 on the support frame 4, the equal fixed mounting of lower extreme of axis of rotation 2 and driving motor 5's output has belt pulley 6, the belt 7 has been cup jointed jointly on two belt pulleys 6, the suction opening 8 has been evenly seted up to axis of rotation 2's lower extreme, suction opening 8 is installed in rotation 2's upper end rotation, suction opening 9 is linked together with mixing box 1's inside through suction opening 8, during the use, with the coral aggregate that has been handled in the main material, slags and washing coal ash sediment pour into mixing box's inside, and open driving motor 5, make rotation axis of rotation 3 mix the material, mix again with coral, powder and cellosilk pour into mixing box 1's inside into mix, mix the inside mix agent and mix, mix the inside mix the slurry preparation is carried out after the suction opening is carried out to mix, mix the slurry preparation is carried out to mix the inside, mix the slurry preparation is stable, mix the slurry is filled into the inside after the suction opening 1, and mix slurry is mixed into the inside mix the inside is stable, and mix is filled into the inside, and mix slurry is mixed into the inside after mix slurry 1, and mix slurry is cured, and mix is cured, and dry slurry is mixed to mix and dry slurry and has dry slurry.
In order to be convenient for drive mixing assembly 3, evenly fixed mounting has connecting rod 10 in the inside upper end of mixing box 1, and the one end and the thick liquid pipe 9 fixed connection of connecting rod 10, the lower extreme fixed mounting planar bearing 11 of thick liquid pipe 9, thick liquid pipe 9 passes through planar bearing 11 and rotates with axis of rotation 2 and link.
In order to improve the stirring and mixing effect, the mixing assembly 3 comprises a fixed rod 301, one end of the fixed rod 301 is fixedly connected with the rotating shaft 2, a scraping plate 302 is fixedly arranged below the fixed rod 301, the lower end of the scraping plate 302 is in contact with the inner lower surface of the mixing box 1, the scraping plate 302 is of an inclined structure, vertical plates 303 are fixedly arranged at the two ends above the fixed rod 301, a rotating rod 304 is rotatably arranged between the vertical plates 303, and a mixing rod 305 is uniformly and fixedly arranged on the outer cylindrical surface of the rotating rod 304; a fixed bevel gear 12 is fixedly arranged at the middle position of the pulp suction pipe 9, a rotating bevel gear 306 is fixedly arranged at one end of a rotating rod 304, which is close to the pulp suction pipe 9, the rotating bevel gear 306 is meshed with the fixed bevel gear 12, a scattering rod 307 is uniformly and fixedly arranged at one side of the fixed rod 301, a splash guard 308 with an arc structure is fixedly arranged between the upper ends of the two vertical plates 303, when the mixing component 3 rotates along with the rotating shaft 2, the rotating bevel gear 306 rotates on the fixed bevel gear 12, the rotating bevel gear 306 is meshed with the fixed bevel gear 12, the rotating bevel gear 306 rotates on the fixed bevel gear 12 conveniently, the rotating rod 304 rotates, the mixing rod 305 is driven to rotate, and when the rotating shaft 2 rotates, the fixed rod 301 drives a scraping plate 302 to rotate, the inside material of mixing box 1 is convenient for turn to through the upper end of dead lever 301, when the upper end of dead lever 301, make the rotation mixing rod 305 mix the stirring to the material of turning up, and through splash guard 308, avoid when mixing, lead to the material to splash, and after stirring, fall on breaking up the pole 307, further break up through breaking up the pole 307, improve the mixing effect, and facilitate the use, and when carrying out the ejection of compact, because scraper blade 302 is the incline state, make material looks axis of rotation 2 direction gathering, be connected with outside suction device and suction pipe 9, and then be convenient for draw the inside of axis of rotation 2 through suction hole 8 suction to the material of mixing box 1, and take out through axis of rotation 2 and suction pipe 9, the convenience is discharged, convenient use, convenient operation.
When the mortar is used, the treated coral aggregate, slag and water-washed coal ash are poured into the mixing box 1, the driving motor 5 is started, the driving motor 5 drives the rotating shaft 2 to rotate, the mixing assembly 3 is used for stirring and mixing materials, then cement, coral powder and fiber yarns are poured into the mixing box 1 to be stirred and mixed, simultaneously curing agent and stabilizer are gradually added into the mixing box 1 to be mixed with dry materials, after mixing is completed, water is injected into the mixing box 1 to be pulped, and after completion, pulped pulp is pumped out through the pulp pumping pipe 9 and the pulp pumping hole 8, and the mortar after pulping is convenient to operate.
Example 2
The high-strength separation layer grouting material comprises 10 parts by weight of coral aggregate, 30 parts by weight of cement, 15 parts by weight of slag, 18 parts by weight of water-washed coal ash slag, 40 parts by weight of water, 5 parts by weight of coral powder, 5 parts by weight of basalt fiber yarn, 3 parts by weight of epoxy resin and 2 parts by weight of sodium polyacrylate; wherein the mesh number of coral aggregate, slag and water-washed coal ash slag is 70 meshes, the mesh number of coral powder is 120 meshes, and the length of basalt fiber filaments is less than or equal to 5mm;
mixing and pulping the raw materials by using the mixing device in the embodiment 1, firstly adding coral aggregate, slag and water-washed coal ash slag into a mixing box 1, setting the rotating speed to be 45r/min for stirring, then pouring cement, coral powder and fiber into the mixing box 1 for mixing, gradually adding a curing agent and a stabilizing agent in the stirring process, and fully mixing to obtain mixed dry materials; then gradually adding water into the mixing box 1, keeping the rotating speed at 45r/min, fully stirring and mixing the water and the mixed dry material until the components are uniform and undissolved substances without coarse particles are produced into the high-strength separation layer grouting material.
After the pulping process is finished, the high-strength separation layer grouting material prepared in the mixing box 1 is extracted and collected by using a pulp extracting pipe 9 or is directly put into use.
Example 3
The high-strength separation layer grouting material comprises 13 parts by weight of coral aggregate, 40 parts by weight of cement, 18 parts by weight of slag, 20 parts by weight of water-washed coal ash slag, 30 parts by weight of water, 8 parts by weight of coral powder, 7 parts by weight of basalt fiber yarn, 4 parts by weight of epoxy resin and 5 parts by weight of sodium polyacrylate;
Wherein the mesh number of the coral aggregate, the slag and the water-washed coal ash slag is 75 meshes, the mesh number of the coral powder is 130 meshes, the length of basalt fiber filaments is less than or equal to 5mm, and the coral aggregate, the slag, the water-washed coal ash slag, the coral powder and the basalt fiber filaments jointly form a refined material;
Mixing and pulping the raw materials by using the mixing device in the embodiment 1, firstly adding coral aggregate, slag and water-washed coal ash slag into a mixing box 1, setting the rotating speed to be 50r/min for stirring, then pouring cement, coral powder and fiber into the mixing box 1 for mixing, gradually adding a curing agent and a stabilizing agent in the stirring process, and fully mixing to obtain mixed dry materials; then gradually adding water into the mixing box 1, keeping the rotating speed at 50r/min, fully stirring and mixing the water and the mixed dry material until the components are uniform and undissolved substances without coarse particles are produced into the high-strength separation layer grouting material.
After the pulping process is finished, the high-strength separation layer grouting material prepared in the mixing box 1 is extracted and collected by using a pulp extracting pipe 9 or is directly put into use.
Example 4
The high-strength separation layer grouting material comprises 15 parts by weight of coral aggregate, 45 parts by weight of cement, 20 parts by weight of slag, 22 parts by weight of water-washed coal ash, 50 parts by weight of water, 10 parts by weight of coral powder, 8 parts by weight of basalt fiber yarn, 5 parts by weight of epoxy resin and 6 parts by weight of sodium polyacrylate;
Wherein the mesh number of the coral aggregate, the slag and the water-washed coal ash slag is 80 meshes, the mesh number of the coral powder is 125 meshes, the length of basalt fiber filaments is less than or equal to 5mm, and the coral aggregate, the slag, the water-washed coal ash slag, the coral powder and the basalt fiber filaments jointly form a refined material;
Mixing and pulping the raw materials by using the mixing device in the embodiment 1, firstly adding coral aggregate, slag and water-washed coal ash slag into a mixing box 1, setting the rotating speed to 55r/min for stirring, then pouring cement, coral powder and fiber into the mixing box 1 for mixing, gradually adding a curing agent and a stabilizing agent in the stirring process, and fully mixing to obtain mixed dry materials; then gradually adding water into the mixing box 1, keeping the rotating speed at 55r/min, fully stirring and mixing the water and the mixed dry material until the components are uniform and undissolved substances without coarse particles are produced into the high-strength separation layer grouting material.
After the pulping process is finished, the high-strength separation layer grouting material prepared in the mixing box 1 is extracted and collected by using a pulp extracting pipe 9 or is directly put into use.
Although the present invention has been described in detail by way of preferred embodiments with reference to the accompanying drawings, the present invention is not limited thereto. Various equivalent modifications and substitutions may be made in the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and it is intended that all such modifications and substitutions be within the scope of the present invention/be within the scope of the present invention as defined by the appended claims.
Claims (3)
1. The high-strength separation layer grouting material is characterized in that the raw materials comprise main materials, auxiliary materials and auxiliary agents, wherein the main materials comprise coral aggregate, cement, slag, water-washed coal ash and water; the auxiliary materials comprise coral powder and fiber yarns; the auxiliary agent comprises a curing agent and a stabilizing agent;
The raw materials comprise the following components in percentage by weight: 10-15 parts of coral aggregate, 30-45 parts of cement, 15-20 parts of slag, 8-22 parts of water-washed coal ash, 40-50 parts of water, 5-10 parts of coral powder, 5-8 parts of fiber yarns, 3-5 parts of curing agent and 2-6 parts of stabilizer;
Wherein, the fiber filaments are basalt fiber filaments, the curing agent is epoxy resin, and the stabilizer is sodium polyacrylate;
the mesh numbers of the coral aggregate, the cement and the slag are all 70-80 meshes, the mesh number of the coral powder is 120-150 meshes, and the length of the fiber filaments is less than or equal to 5mm;
The preparation method comprises the steps of fully mixing the raw materials except water to obtain mixed dry materials, and then adding water into the mixed dry materials to prepare slurry to obtain a high-strength separation layer grouting material;
The mixing device of the high-strength separation layer grouting material comprises a mixing box, a hollow rotating shaft is rotatably arranged in the mixing box, a mixing assembly is fixedly arranged on the rotating shaft in a circumferential array, the lower end of the mixing assembly is in contact with the lower surface in the mixing box, a supporting frame is fixedly arranged below the mixing box, a driving motor is fixedly arranged on the supporting frame, the lower end of the rotating shaft and the output end of the driving motor are fixedly provided with belt pulleys, a belt is sleeved on the two belt pulleys together, a grouting hole is uniformly formed in the lower end of the rotating shaft, a grouting pipe is rotatably arranged at the upper end of the rotating shaft, and the lower end of the grouting pipe is communicated with the inside of the mixing box through the grouting hole;
The mixing assembly comprises a fixed rod, one end of the fixed rod is fixedly connected with the rotating shaft, a scraping plate is fixedly arranged below the fixed rod, the lower end of the scraping plate is in contact with the inner lower surface of the mixing box, the scraping plate is of an inclined structure, vertical plates are fixedly arranged at the two ends above the fixed rod, a rotating rod is rotatably arranged between the vertical plates, and the outer cylindrical surface of the rotating rod is uniformly and fixedly provided with the mixing rod;
in the mixing device, a fixed bevel gear is fixedly arranged at the middle position of the slurry pumping pipe, a rotary bevel gear is fixedly arranged at one end of a rotary rod, which is close to the slurry pumping pipe, and is meshed with the fixed bevel gear, a scattering rod is uniformly and fixedly arranged at one side of the fixed rod, and a splash-proof plate with an arc-shaped structure is fixedly arranged between the upper ends of the two vertical plates.
2. The high strength delamination grouting material of claim 1, wherein the preparation method comprises the steps of:
S1, crushing and sieving coral aggregate, slag, water-washed coal ash and coral powder to obtain coral aggregate, slag and water-washed coal ash with the mesh number of 70-80 meshes and coral powder with the mesh number of 120-150 meshes; cutting and crushing the fiber yarn, and controlling the length of the fiber yarn to be below 5 mm;
s2, dry-mixing coral aggregate, slag, water-washed coal ash, cement, coral powder and fiber yarns, gradually adding a curing agent and a stabilizing agent in the stirring process, and fully mixing to obtain a mixed dry material, wherein the mixing and stirring speed is controlled at 40-55rpm;
And S3, stirring and mixing water in the raw materials and the mixed dry materials to form slurry.
3. The high-strength separation layer grouting material according to claim 1, wherein a connecting rod is uniformly and fixedly arranged at the upper end of the interior of the mixing box, one end of the connecting rod is fixedly connected with a grouting pipe, a plane bearing is fixedly arranged at the lower end of the grouting pipe, and the grouting pipe is rotatably connected with the rotating shaft through the plane bearing.
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| CN202211489111.4A CN116003024B (en) | 2022-11-25 | 2022-11-25 | High-strength separation layer grouting material and mixing device thereof |
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| CN116003024B true CN116003024B (en) | 2024-05-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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