CN111421662A - Process for eliminating residual slurry generated in electric pole centrifugation process - Google Patents
Process for eliminating residual slurry generated in electric pole centrifugation process Download PDFInfo
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- CN111421662A CN111421662A CN202010227096.0A CN202010227096A CN111421662A CN 111421662 A CN111421662 A CN 111421662A CN 202010227096 A CN202010227096 A CN 202010227096A CN 111421662 A CN111421662 A CN 111421662A
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- concrete
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
- B28B21/60—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements
- B28B21/66—Reinforcing mats
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
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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
- C04B28/04—Portland cements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
- E04C5/04—Mats
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
- E04C5/073—Discrete reinforcing elements, e.g. fibres
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/16—Prestressed structures
Abstract
The invention discloses a process for eliminating residual slurry generated in the centrifugal process of a telegraph pole, belonging to the technical field of telegraph pole preparation processes, can realize the improvement of the composition of the raw materials, mixes the raw materials by using proper proportion, arranges magnetic net distribution nodes on the reinforcing steel bar net, and adopts the mode of putting a water reducing rod into a mould, when the concrete is centrifugally treated, the water reducing rod not only presses the concrete to promote the compaction and the formation in compliance with the centrifugal force, but also continuously approaches to the reinforcing mesh, in the process, the water-reducing net continuously absorbs the excessive water in the concrete and is finally connected and matched with the magnetic net-distributing node to form the water-reducing net in the electric pole, thereby eliminate the surplus thick liquid of cement that produces in the pole centrifugation process, also can play supplementary reinforcing bar net to the intensity promotion effect of pole as network structure simultaneously after the shaping, improve the waste that the cement utilization ratio reduces the raw materials to can improve the shaping intensity and the quality of pole.
Description
Technical Field
The invention relates to the technical field of telegraph pole preparation processes, in particular to a process for eliminating residual slurry generated in a pole centrifugation process.
Background
The concrete pole has the advantages of low cost, convenient construction, long service life, no replacement, and the like, and is widely applied to projects such as electric power overhead transmission and transformation lines, railway contact net pillars, broadcast communication, municipal lighting, and the like. The 1 st square solid cement electric pole produced in 1924 in China has a history of more than 90 years, and at present, China becomes the country which uses the most concrete electric poles in the world.
The common concrete electric pole is a concrete prefabricated part which is made by using prestressed reinforcement and concrete as main materials, adopting a pretensioning method prestressed centrifugal forming process and performing steam curing, but a large amount of residual slurry can be generated in the centrifugal treatment process, the total amount can reach 20% -30% of the water mixing amount of the concrete, the residual slurry is generated generally because of more water of concrete raw materials, not only has certain influence on the forming quality of the electric pole, but also greatly reduces the effective utilization rate of the cement and causes the waste of the cement.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a process for eliminating residual slurry generated in the centrifugal process of an electric pole, which can improve the composition of raw materials, mix the raw materials by using a proper proportion, arrange magnetic net distribution nodes on a reinforcing mesh, and use the mode of putting a water reducing rod into a mould, when centrifugally treating concrete, the water reducing rod not only extrudes the concrete in compliance with the centrifugal force to promote compact forming, but also continuously approaches the reinforcing mesh to continuously absorb excessive moisture in the concrete in the process, and finally is connected and matched with the magnetic net distribution nodes to form the water reducing mesh in the electric pole, thereby eliminating the residual cement slurry generated in the centrifugal process of the electric pole, simultaneously being used as a mesh structure to play a role in assisting the reinforcing mesh to improve the strength of the electric pole after forming, improving the utilization rate of the cement and reducing the waste of the raw materials, and the forming strength and quality of the electric pole can be improved.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A process for eliminating residual slurry generated in the centrifugal process of an electric pole comprises the following steps:
s1, preparing a concrete raw material, which comprises the following components in parts by weight: 160 parts of 120-grade portland cement, 120 parts of 100-grade fine sand, 80-120 parts of broken stone, 15-25 parts of high-efficiency water reducing agent, 60-80 parts of fly ash, 75-85 parts of bentonite, 1.2-1.8 parts of anti-crack fiber, 60-80 parts of steel fiber and 200 parts of 150-grade water;
s2, weaving a steel bar mesh by using eight prestressed wires with the diameter of 4.8mm as main bars and using cold-drawn high-strength wires with the diameter of 3.0mm as annular structural bars, and welding magnetic mesh distribution nodes at nodes of the steel bar mesh;
s3, removing impurities and raw materials which do not meet the requirements in the concrete raw materials before production, weighing the raw materials according to the weight, mixing the raw materials to prepare a concrete base material, and placing the concrete base material into an electric pole mould after carrying out anti-corrosion treatment on the reinforcing mesh;
s4, conveying the concrete base material to the electric pole mould through a distributor to be uniformly distributed, simultaneously putting a water reducing rod into a feeding port arranged in the center of the electric pole mould, then carrying out centrifugal treatment on the concrete base material in a mode of driving the electric pole mould to rotate, and standing for 1-2 hours after compacting and forming;
s5, placing the whole electric pole mould in a steam curing kiln to heat, curing at a constant temperature of 85-95 ℃, curing for 6-12h, and demoulding.
Furthermore, the crushed stone comprises 30-50 parts of 4-8 mm-grade crushed stone, 40-60 parts of 8-15 mm-grade crushed stone and 10-20 parts of 15-25 mm-grade crushed stone, and the graded crushed stone can improve the compactness of concrete, thereby improving the forming quality and strength.
Further, the high-efficiency water reducing agent comprises one or more of a sodium naphthalene sulfonate formaldehyde condensate, a polycyclic aromatic hydrocarbon sulfonate condensate and a melamine sulfonate formaldehyde condensate, and the water reducing rate is more than 30%.
Furthermore, the anti-cracking fiber is polypropylene fiber, the length of the steel fiber is 10-15mm, the diameter of the steel fiber is 0.3-0.5mm, the forming strength and the quality of the electric pole are effectively improved, and the electric pole has good anti-cracking and anti-breaking performances.
Further, magnetism cloth net node includes the stainless steel ball, inlay on the stainless steel ball surface and install four evenly distributed's first magnet piece, it is adjacent distance between the magnetism cloth net node is 2 times of water reducing rod length, conveniently cooperates with the water reducing rod through the fixed mode of magnetic force, forms the water reducing net for absorb the surplus thick liquid moisture that produces among the centrifugal process, also can assist the reinforcing bar net to improve pole intensity simultaneously.
Further, the water reducing rod includes water reducing inner core and a pair of second magnet piece, and water reducing inner core fixed connection is between a pair of second magnet piece, the water reducing inner core includes the heat conduction plug, heat conduction plug outer end parcel has the water absorption cover, the aluminum alloy strip that a plurality of annular array of water absorption cover external surface fixedly connected with distribute, many evenly distributed's of fixedly connected with heat conduction silk between aluminum alloy strip and the heat conduction plug, heat conduction plug provide intensity as the skeleton, and self has heat conductivility simultaneously, can preheat before adding to supplementary concrete carries out the thermoforming, and the aluminum alloy strip plays the effect of protection water absorption cover, indirectly improves the intensity of water reducing rod simultaneously, and the water absorption cover plays the effect of absorbing surplus thick liquid moisture, has both eliminated the production of surplus thick liquid, also can make the concrete with shorter time shaping simultaneously.
Further, the equal fixedly connected with many extension silks in water absorption cover and aluminum alloy strip surface, the extension silk on the water absorption cover forms for absorbing water the fibre is restrainted, extension silk on the aluminum alloy strip is made for heat conduction metal material, on the one hand better and concrete contact, the effect that the performance was absorbed water or was heat conduction, on the other hand can improve the joint strength with the concrete.
Furthermore, a heat conduction cavity is formed in the heat conduction core rod, heat conduction oil and heat conduction sand are filled in the heat conduction cavity, the filling ratio of the heat conduction oil to the heat conduction sand is 1:1-2, the heat conduction core rod has extremely excellent heat conduction performance, and meanwhile in the centrifugal process, due to movement friction impact, a certain amount of heat can be generated in the heat conduction cavity for supplement.
Furthermore, the water absorption sleeve is prepared by mixing the high-molecular water absorption resin and the water absorption fluff pulp, has extremely excellent water absorption and water retention, and can avoid the phenomenon that water is released after being extruded in the centrifugal process.
Further, the electric pole mold in the step S3 should be coated with a layer of release agent before placing the reinforcing mesh, so as to facilitate the subsequent demolding of the electric pole and reduce surface damage.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) this scheme can realize improving the raw materials and constitute, and utilize suitable ratio to mix the raw materials, through set up magnetism cloth net node on the reinforcing bar net, and utilize the mode that drops into the water reducing rod in the mould, in centrifugal treatment concrete, the water reducing rod not only complies with centrifugal force extrusion concrete and makes closely knit shaping, on the other hand constantly is close to the reinforcing bar net, constantly absorb unnecessary moisture in the concrete at this in-process, at last with magnetism cloth net node connection cooperation form the inside water reducing net of pole, thereby eliminate the surplus thick liquid of cement that produces in the pole centrifugal process, also can play supplementary reinforcing bar net to the intensity promotion effect of pole as network structure after the shaping simultaneously, improve the waste of cement utilization ratio reduction raw materials, and can improve the shaping intensity and the quality of pole.
(2) The crushed stone comprises 30-50 parts of 4-8 mm-grade crushed stone, 40-60 parts of 8-15 mm-grade crushed stone and 10-20 parts of 15-25 mm-grade crushed stone, and the graded crushed stone can improve the compactness of concrete, thereby improving the forming quality and strength.
(3) The high-efficiency water reducing agent comprises one or more of sodium naphthalene sulfonate formaldehyde condensate, polycyclic aromatic hydrocarbon sulfonate condensate and melamine sulfonate formaldehyde condensate, and the water reducing rate is more than 30%.
(4) The anti-crack fiber is polypropylene fiber, the length of the steel fiber is 10-15mm, the diameter of the steel fiber is 0.3-0.5mm, the forming strength and the quality of the electric pole are effectively improved, and the electric pole has good anti-crack and anti-fracture properties.
(5) Magnetism cloth net node includes the stainless steel ball, inlays on the stainless steel ball surface and installs four evenly distributed's first magnet piece, and distance between the adjacent magnetism cloth net node is 2 times of water reducing rod length, conveniently through the fixed mode of magnetic force, cooperates with the water reducing rod and forms the water reducing net for absorb the surplus thick liquid moisture that produces among the centrifugation process, also can assist the reinforcing bar net to improve pole intensity simultaneously.
(6) The water reducing rod comprises a water reducing inner core and a pair of second magnet blocks, the water reducing inner core is fixedly connected between the pair of second magnet blocks, the water reducing inner core comprises a heat-conducting core rod, the outer end of the heat-conducting core rod is wrapped with a water absorbing sleeve, the outer surface of the water absorbing sleeve is fixedly connected with aluminum alloy strips distributed in a plurality of annular arrays, a plurality of uniformly distributed heat-conducting wires are fixedly connected between the aluminum alloy strips and the heat-conducting core rod, the heat-conducting core rod provides strength as a framework, the heat-conducting core rod has heat conducting performance, preheating can be carried out before adding, therefore, auxiliary concrete is subjected to heat forming, the aluminum alloy strips play a role in protecting the water absorbing sleeve, the strength of the water reducing rod is indirectly improved at the same time, the water absorbing sleeve plays a role in absorbing residual slurry moisture, the generation of residual.
(7) The outer surfaces of the water absorption sleeve and the aluminum alloy strip are fixedly connected with a plurality of extension wires, the extension wires on the water absorption sleeve are formed by bundling water absorption fibers, the extension wires on the aluminum alloy strip are made of heat-conducting metal materials, on one hand, the extension wires are better contacted with concrete, the water absorption or heat conduction effect is played, and on the other hand, the connection strength with the concrete can be improved.
(8) The heat conduction core rod is internally provided with a heat conduction cavity, heat conduction oil and heat conduction sand are filled in the heat conduction cavity, the filling ratio of the heat conduction oil to the heat conduction sand is 1:1-2, the heat conduction core rod not only has extremely excellent heat conductivity, but also can generate certain heat for supplement in the centrifugal process due to movement friction impact.
(9) The water absorption sleeve is prepared by mixing the high-molecular water absorption resin and the water absorption fluff pulp, has extremely excellent water absorption and water retention, and can avoid the phenomenon that water is released after being extruded in the centrifugal process.
(10) The electric pole mold in the step S3 should be coated with a layer of release agent before placing the reinforcing mesh, so that subsequent electric pole demolding is facilitated, and surface damage is reduced.
Drawings
FIG. 1 is a schematic flow diagram of the present invention;
fig. 2 is a schematic structural view of a mesh reinforcement part according to the present invention;
FIG. 3 is a schematic structural view of a magnetic netting node portion of the present invention;
FIG. 4 is a schematic view of the structure of the water reducing rod portion of the present invention;
FIG. 5 is a cross-sectional view of a portion of a water bar according to the present invention;
FIG. 6 is a schematic view of the structure of the magnetic net laying node and the water reducing rod of the present invention.
The reference numbers in the figures illustrate:
1 stainless steel ball, 2 first magnet pieces, 3 water absorption sleeves, 4 second magnet pieces, 5 extension wires, 6 heat conduction core rods, 7 heat conduction wires, 8 heat conduction cavities and 9 aluminum alloy strips.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1, a process for eliminating residual slurry generated during the centrifugal process of an electric pole includes the following steps:
s1, preparing a concrete raw material, which comprises the following components in parts by weight: 120 parts of portland cement, 100 parts of fine sand, 80 parts of broken stone, 15 parts of a high-efficiency water reducing agent, 60 parts of fly ash, 75 parts of bentonite, 1.2 parts of anti-crack fiber, 60 parts of steel fiber and 150 parts of water;
s2, weaving a steel bar mesh by using eight prestressed wires with the diameter of 4.8mm as main bars and using cold-drawn high-strength wires with the diameter of 3.0mm as annular structural bars, and welding magnetic mesh distribution nodes at nodes of the steel bar mesh;
s3, removing impurities and raw materials which do not meet the requirements in the concrete raw materials before production, weighing the raw materials according to the weight, mixing the raw materials to prepare a concrete base material, and placing the concrete base material into an electric pole mould after carrying out anti-corrosion treatment on the reinforcing mesh;
s4, conveying the concrete base material to the electric pole mould through a distributor to be uniformly distributed, simultaneously putting a water reducing rod into a feeding port arranged in the center of the electric pole mould, then carrying out centrifugal treatment on the concrete base material in a mode of driving the electric pole mould to rotate, and standing for 1h after compacting and forming;
and S5, placing the whole electric pole mould in a steam curing kiln, heating to 85 ℃, curing for 6 hours, and demoulding.
The crushed stone comprises 30 parts of 4-8 mm-grade crushed stone, 40 parts of 8-15 mm-grade crushed stone and 10 parts of 15-25 mm-grade crushed stone, and the graded crushed stone can improve the compactness of concrete so as to improve the forming quality and strength.
The high-efficiency water reducing agent comprises one or more of sodium naphthalene sulfonate formaldehyde condensate, polycyclic aromatic hydrocarbon sulfonate condensate and melamine sulfonate formaldehyde condensate, and the water reducing rate is more than 30%.
The anti-crack fiber is polypropylene fiber, the length of the steel fiber is 10, the diameter of the steel fiber is 0.5mm, the forming strength and the quality of the electric pole are effectively improved, and the electric pole has good anti-crack and anti-fracture properties.
Referring to fig. 2-3 and fig. 6, the magnetic net-distributing nodes include a stainless steel ball 1, four first magnets 2 are mounted on the outer surface of the stainless steel ball 1 in an embedded manner, the distance between adjacent magnetic net-distributing nodes is 2 times the length of the water reducing rod, and the magnetic net-distributing nodes are conveniently matched with the water reducing rod in a magnetic fixing manner to form a water reducing net for absorbing residual slurry water generated in the centrifugal process and assisting the steel net to improve the strength of the pole.
Referring to fig. 4-5, the water reducing rod includes a water reducing inner core and a pair of second magnet blocks 4, the water reducing inner core is fixedly connected between the pair of second magnet blocks 4, the water reducing inner core includes a heat conducting core rod 6, the outer end of the heat conducting core rod 6 is wrapped with a water absorbing sleeve 3, the outer surface of the water absorbing sleeve 3 is fixedly connected with a plurality of aluminum alloy strips 9 distributed in an annular array, a plurality of heat conducting wires 7 distributed uniformly are fixedly connected between the aluminum alloy strips 9 and the heat conducting core rod 6, the heat conducting core rod 6 serves as a framework to provide strength, and has heat conducting property to preheat before adding, so as to assist the concrete to be hot-formed, the aluminum alloy strips 9 play a role in protecting the water absorbing sleeve 3, and indirectly improve the strength of the water reducing rod, the water absorbing sleeve 3 plays a role in absorbing residual slurry water, thereby not only eliminating residual slurry, but also enabling the concrete to be formed in a, the outer surfaces of the water absorption sleeve 3 and the aluminum alloy strip 9 are fixedly connected with a plurality of extension wires 5, the extension wires 5 on the water absorption sleeve 3 are formed by bundling water absorption fibers, the extension wires 5 on the aluminum alloy strip 9 are made of heat conduction metal materials, on one hand, the extension wires are better contacted with concrete to play a role of water absorption or heat conduction, on the other hand, the connection strength with the concrete can be improved, a heat conduction cavity 8 is formed in the heat conduction core rod 6, heat conduction oil and heat conduction sand are filled in the heat conduction cavity 8, the filling ratio of the heat conduction oil to the heat conduction sand is 1:1-2, the heat conduction core rod has extremely excellent heat conductivity, and meanwhile, in the centrifugal process, certain heat can be generated inside the heat conduction cavity 8 for supplement due to motion friction impact.
The water absorption sleeve 3 is prepared by mixing high-molecular water absorption resin and water absorption fluff pulp, has extremely excellent water absorption and water retention, and can avoid the phenomenon that water is released after being extruded in the centrifugal process.
The electric pole mold in the step S3 should be coated with a layer of release agent before placing the reinforcing mesh, so that subsequent electric pole demolding is facilitated, and surface damage is reduced.
Example 2:
referring to fig. 1, a process for eliminating residual slurry generated during the centrifugal process of an electric pole includes the following steps:
s1, preparing a concrete raw material, which comprises the following components in parts by weight: 140 parts of portland cement, 110 parts of fine sand, 100 parts of gravel, 20 parts of high-efficiency water reducing agent, 70 parts of fly ash, 80 parts of bentonite, 1.5 parts of anti-crack fiber, 70 parts of steel fiber and 180 parts of water;
s2, weaving a steel bar mesh by using eight prestressed wires with the diameter of 4.8mm as main bars and using cold-drawn high-strength wires with the diameter of 3.0mm as annular structural bars, and welding magnetic mesh distribution nodes at nodes of the steel bar mesh;
s3, removing impurities and raw materials which do not meet the requirements in the concrete raw materials before production, weighing the raw materials according to the weight, mixing the raw materials to prepare a concrete base material, and placing the concrete base material into an electric pole mould after carrying out anti-corrosion treatment on the reinforcing mesh;
s4, conveying the concrete base material to the electric pole mould through a distributor to be uniformly distributed, simultaneously putting a water reducing rod into a feeding port arranged in the center of the electric pole mould, then carrying out centrifugal treatment on the concrete base material in a mode of driving the electric pole mould to rotate, and standing for 1.5 hours after compacting and forming;
and S5, placing the whole electric pole mould in a steam curing kiln, heating to a curing constant temperature of 90 ℃, curing for 9 hours, and demoulding.
The crushed stone comprises 30 parts of 4-8 mm-grade crushed stone, 50 parts of 8-15 mm-grade crushed stone and 20 parts of 15-25 mm-grade crushed stone, and the graded crushed stone can improve the compactness of concrete so as to improve the forming quality and strength.
The remainder was in accordance with example 1.
Example 3:
referring to fig. 1, a process for eliminating residual slurry generated during the centrifugal process of an electric pole includes the following steps:
s1, preparing a concrete raw material, which comprises the following components in parts by weight: 160 parts of portland cement, 120 parts of fine sand, 120 parts of broken stone, 25 parts of a high-efficiency water reducing agent, 80 parts of fly ash, 85 parts of bentonite, 1.8 parts of anti-crack fiber, 80 parts of steel fiber and 200 parts of water;
s2, weaving a steel bar mesh by using eight prestressed wires with the diameter of 4.8mm as main bars and using cold-drawn high-strength wires with the diameter of 3.0mm as annular structural bars, and welding magnetic mesh distribution nodes at nodes of the steel bar mesh;
s3, removing impurities and raw materials which do not meet the requirements in the concrete raw materials before production, weighing the raw materials according to the weight, mixing the raw materials to prepare a concrete base material, and placing the concrete base material into an electric pole mould after carrying out anti-corrosion treatment on the reinforcing mesh;
s4, conveying the concrete base material to the electric pole mould through a distributor to be uniformly distributed, simultaneously putting a water reducing rod into a feeding port arranged in the center of the electric pole mould, then carrying out centrifugal treatment on the concrete base material in a mode of driving the electric pole mould to rotate, and standing for 2 hours after compacting and forming;
and S5, placing the whole electric pole mould in a steam curing kiln, heating to 95 ℃ at a constant curing temperature, curing for 12 hours, and demoulding.
The crushed stone comprises 40 parts of 4-8 mm-grade crushed stone, 60 parts of 8-15 mm-grade crushed stone and 20 parts of 15-25 mm-grade crushed stone, and the graded crushed stone can improve the compactness of concrete so as to improve the forming quality and strength.
The remainder was in accordance with example 1.
The invention can realize the improvement of the composition of the raw materials, mixes the raw materials by using a proper proportion, not only extrudes the concrete by following the centrifugal force to promote the compact forming by arranging the magnetic net distributing nodes on the steel bar net and by using the mode of putting the water reducing rod into the mould when centrifugally treating the concrete, but also continuously approaches the steel bar net to continuously absorb the excessive moisture in the concrete in the process, and finally, the water reducing rod is connected and matched with the magnetic net distributing nodes to form the water reducing net in the electric pole, thereby eliminating the residual cement slurry generated in the centrifugal process of the electric pole, simultaneously, the water reducing rod can be used as a net structure to assist the strength improvement effect of the steel bar net on the electric pole after the forming, the utilization rate of the cement is improved, the waste of the raw materials is reduced, and the forming strength and the quality of the electric pole.
The above are merely preferred embodiments of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (10)
1. A process for eliminating residual slurry generated in the centrifugal process of an electric pole is characterized in that: the method comprises the following steps:
s1, preparing a concrete raw material, which comprises the following components in parts by weight: 160 parts of 120-grade portland cement, 120 parts of 100-grade fine sand, 80-120 parts of broken stone, 15-25 parts of high-efficiency water reducing agent, 60-80 parts of fly ash, 75-85 parts of bentonite, 1.2-1.8 parts of anti-crack fiber, 60-80 parts of steel fiber and 200 parts of 150-grade water;
s2, weaving a steel bar mesh by using eight prestressed wires with the diameter of 4.8mm as main bars and using cold-drawn high-strength wires with the diameter of 3.0mm as annular structural bars, and welding magnetic mesh distribution nodes at nodes of the steel bar mesh;
s3, removing impurities and raw materials which do not meet the requirements in the concrete raw materials before production, weighing the raw materials according to the weight, mixing the raw materials to prepare a concrete base material, and placing the concrete base material into an electric pole mould after carrying out anti-corrosion treatment on the reinforcing mesh;
s4, conveying the concrete base material to the electric pole mould through a distributor to be uniformly distributed, simultaneously putting a water reducing rod into a feeding port arranged in the center of the electric pole mould, then carrying out centrifugal treatment on the concrete base material in a mode of driving the electric pole mould to rotate, and standing for 1-2 hours after compacting and forming;
s5, placing the whole electric pole mould in a steam curing kiln to heat, curing at a constant temperature of 85-95 ℃, curing for 6-12h, and demoulding.
2. The process for eliminating the residual slurry generated in the centrifugal process of the electric pole as recited in claim 1, wherein: the crushed stone comprises 30-50 parts of 4-8 mm-grade crushed stone, 40-60 parts of 8-15 mm-grade crushed stone and 10-20 parts of 15-25 mm-grade crushed stone.
3. The process for eliminating the residual slurry generated in the centrifugal process of the electric pole as recited in claim 1, wherein: the high-efficiency water reducing agent comprises one or more of sodium naphthalene sulfonate formaldehyde condensate, polycyclic aromatic hydrocarbon sulfonate condensate and melamine sulfonate formaldehyde condensate, and the water reducing rate is more than 30%.
4. The process for eliminating the residual slurry generated in the centrifugal process of the electric pole as recited in claim 1, wherein: the anti-crack fiber is polypropylene fiber, the length of the steel fiber is 10-15mm, and the diameter of the steel fiber is 0.3-0.5 mm.
5. The process for eliminating the residual slurry generated in the centrifugal process of the electric pole as recited in claim 1, wherein: the magnetic net distribution node comprises a stainless steel ball (1), four first magnet blocks (2) which are uniformly distributed are embedded on the outer surface of the stainless steel ball (1), and the distance between every two adjacent magnetic net distribution nodes is 2 times the length of the water reducing rod.
6. The process for eliminating the residual slurry generated in the centrifugal process of the electric pole as recited in claim 1, wherein: the water reducing rod comprises a water reducing inner core and a pair of second magnet blocks (4), the water reducing inner core is fixedly connected between the pair of second magnet blocks (4), the water reducing inner core comprises a heat conducting core rod (6), the outer end of the heat conducting core rod (6) is wrapped with a water absorbing sleeve (3), the outer surface of the water absorbing sleeve (3) is fixedly connected with aluminum alloy strips (9) distributed in a plurality of annular arrays, and a plurality of uniformly distributed heat conducting wires (7) are fixedly connected between the aluminum alloy strips (9) and the heat conducting core rod (6).
7. The process for eliminating the residual slurry generated in the centrifugal process of the electric pole as recited in claim 6, wherein: the utility model discloses a heat-conducting heat-insulating material, including water-absorbing cover (3) and aluminum alloy strip (9), the equal fixedly connected with many extension silk (5) of water-absorbing cover (3) and aluminum alloy strip (9) surface, extension silk (5) on the water-absorbing cover (3) form for absorbing water the fibre tied in a bundle, extension silk (5) on aluminum alloy strip (9) are made for heat-conducting metal material.
8. The process for eliminating the residual slurry generated in the centrifugal process of the electric pole as recited in claim 6, wherein: the heat conduction core rod (6) is internally provided with a heat conduction cavity (8), the heat conduction cavity (8) is filled with heat conduction oil and heat conduction sand, and the filling ratio of the heat conduction oil to the heat conduction sand is 1: 1-2.
9. The process for eliminating the residual slurry generated in the centrifugal process of the electric pole as recited in claim 6, wherein: the water absorption sleeve (3) is prepared by mixing high-molecular water absorption resin and water absorption fluff pulp.
10. The process for eliminating the residual slurry generated in the centrifugal process of the electric pole as recited in claim 1, wherein: the pole mold in step S3 should be coated with a release agent before placing the mesh reinforcement.
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| JPS5894413A (en) * | 1981-12-01 | 1983-06-04 | 株式会社豊田機販 | Formwork for centrifugal molding of taper pole made of concrete |
| CN204935889U (en) * | 2015-09-18 | 2016-01-06 | 重庆市江城水电设施有限公司 | Concurrent mortar leakage prevention mould |
| CN206367084U (en) * | 2016-12-26 | 2017-08-01 | 黄冈昌耀电力器材有限公司 | A kind of annular concrete electric pole cement remaining slurry collects application apparatus |
| CN107662279A (en) * | 2016-07-27 | 2018-02-06 | 湖北兴葆科技有限责任公司 | A kind of annular concrete electric pole remaining slurry collection device |
| CN207841700U (en) * | 2018-01-13 | 2018-09-11 | 芜湖市星宇电器有限公司 | A kind of electric pole industrial water mud pouring drawing-in device |
| CN209552077U (en) * | 2018-11-21 | 2019-10-29 | 安徽阿凡达电气有限公司 | A kind of annular concrete electric pole remaining slurry collection device |
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2020
- 2020-03-27 CN CN202010227096.0A patent/CN111421662B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5894413A (en) * | 1981-12-01 | 1983-06-04 | 株式会社豊田機販 | Formwork for centrifugal molding of taper pole made of concrete |
| CN204935889U (en) * | 2015-09-18 | 2016-01-06 | 重庆市江城水电设施有限公司 | Concurrent mortar leakage prevention mould |
| CN107662279A (en) * | 2016-07-27 | 2018-02-06 | 湖北兴葆科技有限责任公司 | A kind of annular concrete electric pole remaining slurry collection device |
| CN206367084U (en) * | 2016-12-26 | 2017-08-01 | 黄冈昌耀电力器材有限公司 | A kind of annular concrete electric pole cement remaining slurry collects application apparatus |
| CN207841700U (en) * | 2018-01-13 | 2018-09-11 | 芜湖市星宇电器有限公司 | A kind of electric pole industrial water mud pouring drawing-in device |
| CN209552077U (en) * | 2018-11-21 | 2019-10-29 | 安徽阿凡达电气有限公司 | A kind of annular concrete electric pole remaining slurry collection device |
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| CN111421662B (en) | 2021-05-04 |
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