CN111844408A - Method for producing electric pole by using automatic concrete pumping and feeding system - Google Patents

Method for producing electric pole by using automatic concrete pumping and feeding system Download PDF

Info

Publication number
CN111844408A
CN111844408A CN202010735601.2A CN202010735601A CN111844408A CN 111844408 A CN111844408 A CN 111844408A CN 202010735601 A CN202010735601 A CN 202010735601A CN 111844408 A CN111844408 A CN 111844408A
Authority
CN
China
Prior art keywords
electric pole
pumping
feeding
concrete
automatic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010735601.2A
Other languages
Chinese (zh)
Inventor
何经锁
张雷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ANHUI KAIYUE ELECTRIC POWER TOWER CO LTD
Original Assignee
ANHUI KAIYUE ELECTRIC POWER TOWER CO LTD
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ANHUI KAIYUE ELECTRIC POWER TOWER CO LTD filed Critical ANHUI KAIYUE ELECTRIC POWER TOWER CO LTD
Priority to CN202010735601.2A priority Critical patent/CN111844408A/en
Publication of CN111844408A publication Critical patent/CN111844408A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B13/00Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
    • B28B13/02Feeding the unshaped material to moulds or apparatus for producing shaped articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B21/00Methods or machines specially adapted for the production of tubular articles
    • B28B21/02Methods or machines specially adapted for the production of tubular articles by casting into moulds
    • B28B21/10Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
    • B28B21/22Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using rotatable mould or core parts
    • B28B21/30Centrifugal moulding
    • B28B21/32Feeding the material into the moulds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B21/00Methods or machines specially adapted for the production of tubular articles
    • B28B21/56Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
    • B28B21/60Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B21/00Methods or machines specially adapted for the production of tubular articles
    • B28B21/56Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
    • B28B21/68Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts and applying centrifugal forces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B21/00Methods or machines specially adapted for the production of tubular articles
    • B28B21/92Methods or apparatus for treating or reshaping

Abstract

The invention relates to a method for producing an electric pole by using a concrete automatic pumping feeding system, which changes the traditional die sinking and material filling mode by using the concrete automatic pumping feeding system, and the method does not need manual blanking by firstly putting a steel reinforcement framework into an electric pole die, installing the die and then carrying out concrete pumping, thereby avoiding the falling of ground materials and greatly improving the field environment; meanwhile, no residual concrete is left at the die opening when the electric pole is produced, so that the demoulding and the mould cleaning are convenient, and the labor intensity is greatly reduced; and meanwhile, the labor productivity is improved.

Description

Method for producing electric pole by using automatic concrete pumping and feeding system
Technical Field
The invention belongs to the technical field of concrete poles, and particularly relates to the field of producing poles by using an automatic concrete pumping and feeding system.
Background
In recent years, with the rapid development of the electric power industry in China, the requirements of urban and rural industrial and agricultural development on power transmission and distribution lines are higher and higher, and new higher technical requirements are provided for concrete pole products due to the continuous improvement of voltage levels and flux. The choice of pole type in overhead transmission and distribution line design is generally divided into three types: iron towers, steel pipe poles and concrete poles; however, the iron tower and the steel pipe pole have poor corrosion resistance, high manufacturing cost, short service life, large floor area, complex installation process and long construction period, so that the steel structure-like pole is gradually eliminated by the market, and the concrete pole is gradually favored by users; however, the traditional electric pole production process has the problems of high labor intensity, more waste materials, poorer production environment, difficult recruitment of workers in production enterprises, low productivity and the like.
Disclosure of Invention
In order to solve the problems, the invention achieves the purposes through the following technical scheme:
a method for producing an electric pole by using a concrete automatic pumping feeding system, wherein the concrete automatic pumping feeding system comprises a concrete stirring device, a concrete automatic pumping feeding device and a pumping pipeline; the method comprises the following steps:
the method comprises the following steps: preparing materials and equipment, wherein the materials comprise prestressed main reinforcements, non-prestressed main reinforcements, erection rings, spiral reinforcements, concrete and a release agent; the equipment comprises an electric pole mould, a prestress tensioning machine, a centrifugal forming machine, a maintenance pool and a movable trolley;
step two: preparing an electric pole framework;
step three: preparing the electric pole mold, uniformly coating a release agent on the inner side wall of the electric pole mold, and then putting the electric pole framework prepared in the step two into the lower half mold of the electric pole mold;
step four: fixedly placing an upper half die of the electric pole die on a lower half die, and closing the dies;
step five: placing the matched electric pole mold on a movable trolley, and inserting a pumping pipeline into the electric pole mold by using the movable trolley until a discharge port of the pumping pipeline is close to the foremost end of the electric pole mold;
secondly, the moving trolley carrying electric pole mould retreats towards the direction far away from the discharge hole of the pumping pipeline, and simultaneously, a concrete automatic pumping feeding device in the concrete automatic pumping feeding system is started to perform concrete pumping feeding operation until the concrete feeding amount reaches the design requirement;
and thirdly, after the pumping and feeding of the automatic concrete pumping and feeding device are finished, all the pumping pipelines withdraw from the electric pole mould.
Step six: hoisting the die subjected to feeding in the fifth step to a centrifugal forming machine for centrifugal forming, and placing the die into a curing pool for steam curing after the centrifugal forming;
step seven: after the steam curing is finished, demolding the electric pole, simultaneously inspecting the quality of the finished electric pole, and finally warehousing the qualified finished electric pole into a storage yard.
As a further optimization scheme of the invention, in the fifth step, the trolley is moved, so that the discharge hole of the pumping pipeline is 30cm away from the foremost end of the electric pole mold.
As a further optimization scheme of the invention, the electric pole framework is formed by welding a non-prestressed main rib and a spiral rib.
As a further optimization scheme of the invention, the electric pole framework consists of four parts, namely a prestressed main rib, a non-prestressed main rib, an erecting ring and a spiral rib, and then the erecting ring and the spiral rib are bound on the prestressed main rib and the non-prestressed main rib.
As a further optimization scheme of the invention, after the third step is completed and before the die assembly is performed, the prestressed main bar is subjected to pre-tensioning operation by using a prestressed tensioning machine.
As a further optimization scheme of the invention, after the die assembly is carried out in the fourth step and before the fifth step, the prestressed main reinforcement is tensioned by the prestressed tensioning machine.
The invention has the beneficial effects that:
1) the automatic concrete pumping and feeding system changes the traditional die sinking and material pouring mode, the steel reinforcement framework is placed into the electric pole die at first, the die is assembled, and concrete pumping is carried out, so that manual blanking is not needed, ground falling materials are avoided, and the field environment is greatly improved;
2) when the invention is used for producing electric poles, no residual concrete is left at the die opening, thus being convenient for demoulding and cleaning the die and greatly reducing the labor intensity; meanwhile, the labor productivity is improved, the current production operation of the system is normal, the production efficiency can be doubled, 10-12 electric poles can be produced in each hour on average, the production efficiency is improved, and the per-capita pole output is increased;
3) because the system adopts the mode of firstly closing the die and then pumping to feed the concrete, the die opening has no residual concrete, so that the quality problems of slurry leakage and the like at the die opening are greatly reduced, the product quality is improved, and the product quality is more stable.
Drawings
FIG. 1 is a schematic process flow diagram of example 1 of the present invention;
FIG. 2 is a schematic process flow diagram of example 2 of the present invention;
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example 1
A method for producing an electric pole by using a concrete automatic pumping feeding system as shown in fig. 1, wherein the concrete automatic pumping feeding system comprises a concrete stirring device, a concrete automatic pumping feeding device and a pumping pipeline;
the method comprises the following steps:
the method comprises the following steps: preparing materials and equipment, wherein the materials comprise prestressed main reinforcements, non-prestressed main reinforcements, erecting rings, spiral reinforcements, concrete and a release agent; the equipment comprises an electric pole mould, a prestress tensioning machine, a centrifugal forming machine, a maintenance pool and a mobile trolley;
step two: preparing an electric pole framework, wherein the electric pole framework is formed by welding a non-prestressed main rib and a spiral rib;
step three: preparing the electric pole mold, uniformly coating a release agent on the inner side wall of the electric pole mold, and then putting the electric pole framework prepared in the step two into the lower half mold of the electric pole mold;
step four: fixedly placing an upper half die of the electric pole die on a lower half die, and closing the dies;
step five: firstly, placing the matched electric pole mould on a movable trolley, and inserting a pumping pipeline into the electric pole mould by using the movable trolley until a discharge port of the pumping pipeline is 30cm away from the foremost end of the electric pole mould;
secondly, the moving trolley carrying electric pole mould retreats towards the direction far away from the discharge hole of the pumping pipeline, and simultaneously, a concrete automatic pumping feeding device in the concrete automatic pumping feeding system is started to perform concrete pumping feeding operation until the concrete feeding amount reaches the design requirement;
and thirdly, after the pumping and feeding of the automatic concrete pumping and feeding device are finished, all the pumping pipelines withdraw from the electric pole mould.
Step six: hoisting the die subjected to feeding in the fifth step to a centrifugal forming machine for centrifugal forming, and placing the die into a curing pool for steam curing after the centrifugal forming;
step seven: after the steam curing is finished, demolding the electric pole, simultaneously inspecting the quality of the finished electric pole, and finally warehousing the qualified finished electric pole into a storage yard.
The embodiment relates to a method for producing a non-prestressed electric pole by adopting an automatic concrete pumping and feeding system, which is greatly different from the traditional production process, wherein the traditional production process comprises the steps of firstly putting a steel bar framework into a lower half mould, then pouring concrete, then carrying out centrifugation, steam curing and the like, and the pumping process method of the embodiment comprises the steps of putting the electric pole framework into an electric pole mould, closing the mould, then sending concrete materials into the electric pole mould through an automatic concrete pumping and feeding device and a pumping pipeline, and finally carrying out centrifugal molding and steam curing; by the process method, manual blanking is not needed, ground falling materials are avoided, and the field environment is greatly improved; and the concrete feeding is carried out in a mode of firstly closing the die and then pumping, so that no residual concrete exists at the die orifice, the quality problems of slurry leakage and the like at the die orifice are greatly reduced, the product quality is improved, and the product quality is more stable.
Example 2
A method for producing an electric pole by using a concrete automatic pumping feeding system as shown in fig. 2, wherein the concrete automatic pumping feeding system comprises a concrete stirring device, a concrete automatic pumping feeding device and a pumping pipeline;
the method comprises the following steps:
the method comprises the following steps: preparing materials and equipment, wherein the materials comprise prestressed main reinforcements, non-prestressed main reinforcements, erecting rings, spiral reinforcements, concrete and a release agent; the equipment comprises an electric pole mould, a prestress tensioning machine, a centrifugal forming machine, a maintenance pool and a mobile trolley;
step two: preparing an electric pole framework, wherein the electric pole framework consists of four parts, namely a prestressed main reinforcement, a non-prestressed main reinforcement, an erecting ring and a spiral reinforcement, and then binding the erecting ring and the spiral reinforcement on the prestressed main reinforcement and the non-prestressed main reinforcement;
step three: preparing the electric pole mold, uniformly coating a release agent on the inner side wall of the electric pole mold, and then putting the electric pole framework prepared in the step two into the lower half mold of the electric pole mold;
step four: then, pre-tensioning operation is carried out on the prestressed main reinforcements by utilizing a pre-stressing tensioning machine, then an upper half die of the electric pole die is fixedly placed on a lower half die, and die assembly is carried out; after the die is assembled, the prestressed main reinforcements are tensioned through a prestressed tensioning machine;
step five: firstly, placing the matched electric pole mould on a movable trolley, and inserting a pumping pipeline into the electric pole mould by using the movable trolley until a discharge port of the pumping pipeline is 30cm away from the foremost end of the electric pole mould;
secondly, the moving trolley carrying electric pole mould retreats towards the direction far away from the discharge hole of the pumping pipeline, and simultaneously, a concrete automatic pumping feeding device in the concrete automatic pumping feeding system is started to perform concrete pumping feeding operation until the concrete feeding amount reaches the design requirement;
and thirdly, after the pumping and feeding of the automatic concrete pumping and feeding device are finished, all the pumping pipelines withdraw from the electric pole mould.
Step six: hoisting the die subjected to feeding in the fifth step to a centrifugal forming machine for centrifugal forming, and placing the die into a curing pool for steam curing after the centrifugal forming;
step seven: after the steam curing is finished, demolding the electric pole, simultaneously inspecting the quality of the finished electric pole, and finally warehousing the qualified finished electric pole into a storage yard.
The embodiment is a method for producing a prestressed electric pole by adopting an automatic concrete pumping and feeding system, and firstly, the difference of the traditional process and the process for producing the prestressed electric pole is compared;
the traditional process flow is as follows: mixing concrete → cleaning a mold → binding a framework → pre-stressing reinforcing steel → feeding the concrete → closing the mold → tensioning the pre-stressing reinforcing steel → centrifuging → steam curing;
the process flow of the automatic concrete pumping and feeding system comprises the following steps: mixing concrete → cleaning a mold → binding a framework → pre-stressing reinforcing steel bar pre-tensioning → closing the mold → pre-stressing reinforcing steel bar tensioning → concrete pumping feeding → centrifugation → steam curing;
through the analysis, the traditional process comprises the steps of carrying out die assembly and prestressed tendon tensioning after concrete is poured, and the process of the embodiment comprises the steps of carrying out die assembly, then carrying out prestressed tendon tensioning and finally carrying out die assembly and concrete pumping;
further taking a 12m electric pole as an example for analysis, according to the traditional production process, the traditional production process is that prestressed reinforcements are pre-tensioned, then the erection ring and the spiral reinforcements are bound, finally the mould is opened for pouring concrete, at the moment, the erection ring plays an important supporting role as a structural reinforcement, and the situation that the main reinforcement is pressed by the concrete to cause displacement or reinforcement combination in the pouring process can be prevented, so that the product quality is influenced; therefore, in the traditional process, the erection ring, the main reinforcement and the spiral reinforcement are bound firmly in the production process, so that the position of the prestressed main reinforcement is not deviated in the process of pouring concrete and tensioning prestressed reinforcement, but the requirement on the capacity of binding workers is high, in order to ensure the reliability of the structure, more binding reinforcements are usually adopted for binding, the production cost is increased, and the production efficiency is also reduced.
In order to solve the problem, in the embodiment, when the prestressed electric pole is produced by adopting the automatic concrete pumping and feeding system, the erection ring, the spiral reinforcement and the prestressed main reinforcement are bound firmly, the prestressed main reinforcement is placed in a mold to be subjected to mold assembly and prestressed reinforcement tensioning, and then concrete is pumped; at the moment, the prestressed reinforcement is already at the designed position after being tensioned, the pipeline passes through the middle of the die and the reinforcement cage for feeding in the pumping process, and the concrete is diffused from the middle of the cage to the periphery, so that the position of the prestressed reinforcement is not influenced; in addition, when the technical scheme of the embodiment is adopted to produce the prestressed electric pole, the erecting ring is not required to be placed, and the quality requirements of GB 4623-2004 can be met; in the pumping process, the pumping pipeline passes through the middle of the mould and the steel reinforcement framework for feeding, and the concrete spreads from the middle of the framework to the periphery, so that the erection ring cannot play a supporting role.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims (6)

1. A method for producing an electric pole by using a concrete automatic pumping feeding system, wherein the concrete automatic pumping feeding system comprises a concrete stirring device, a concrete automatic pumping feeding device and a pumping pipeline; the method is characterized in that: the method comprises the following steps:
the method comprises the following steps: preparing materials and equipment, wherein the materials comprise prestressed main reinforcements, non-prestressed main reinforcements, erection rings, spiral reinforcements, concrete and a release agent; the equipment comprises an electric pole mould, a prestress tensioning machine, a centrifugal forming machine, a maintenance pool and a movable trolley;
step two: preparing an electric pole framework;
step three: preparing the electric pole mold, uniformly coating a release agent on the inner side wall of the electric pole mold, and then putting the electric pole framework prepared in the step two into the lower half mold of the electric pole mold;
step four: fixedly placing an upper half die of the electric pole die on a lower half die, and closing the dies;
step five: placing the matched electric pole mold on a movable trolley, and inserting a pumping pipeline into the electric pole mold by using the movable trolley until a discharge port of the pumping pipeline is close to the foremost end of the electric pole mold;
secondly, the moving trolley carrying electric pole mould retreats towards the direction far away from the discharge hole of the pumping pipeline, and simultaneously, a concrete automatic pumping feeding device in the concrete automatic pumping feeding system is started to perform concrete pumping feeding operation until the concrete feeding amount reaches the design requirement;
and thirdly, after the pumping and feeding of the automatic concrete pumping and feeding device are finished, all the pumping pipelines withdraw from the electric pole mould.
Step six: hoisting the die subjected to feeding in the fifth step to a centrifugal forming machine for centrifugal forming, and placing the die into a curing pool for steam curing after the centrifugal forming;
step seven: after the steam curing is finished, demolding the electric pole, simultaneously inspecting the quality of the finished electric pole, and finally warehousing the qualified finished electric pole into a storage yard.
2. The method for producing electric poles with the automatic concrete pumping and feeding system as claimed in claim 1, wherein: and in the fifth step, the trolley is moved, so that the discharge hole of the pumping pipeline is 30cm away from the foremost end of the electric pole mold.
3. A method for producing electric poles with an automatic concrete pumping and feeding system according to any one of claims 1 or 2, characterized in that: the electric pole framework is formed by welding a non-prestressed main rib and a spiral rib.
4. A method for producing electric poles with an automatic concrete pumping and feeding system according to any one of claims 1 or 2, characterized in that: the electric pole framework is composed of four parts, namely a prestressed main rib, an erecting ring and a spiral rib, and then the erecting ring and the spiral rib are bound on the prestressed main rib and the non-prestressed main rib.
5. The method for producing electric poles with the automatic concrete pumping and feeding system as claimed in claim 4, wherein: and after the third step is finished and before the die assembly is carried out, pre-tensioning operation is carried out on the prestressed main reinforcement by utilizing a prestressed tensioning machine.
6. The method for producing electric poles with the automatic concrete pumping and feeding system as claimed in claim 5, wherein: and after the fourth step is carried out, and before the fifth step is carried out, carrying out tensioning operation on the prestressed main reinforcement through a prestressed tensioning machine.
CN202010735601.2A 2020-07-28 2020-07-28 Method for producing electric pole by using automatic concrete pumping and feeding system Pending CN111844408A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010735601.2A CN111844408A (en) 2020-07-28 2020-07-28 Method for producing electric pole by using automatic concrete pumping and feeding system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010735601.2A CN111844408A (en) 2020-07-28 2020-07-28 Method for producing electric pole by using automatic concrete pumping and feeding system

Publications (1)

Publication Number Publication Date
CN111844408A true CN111844408A (en) 2020-10-30

Family

ID=72947925

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010735601.2A Pending CN111844408A (en) 2020-07-28 2020-07-28 Method for producing electric pole by using automatic concrete pumping and feeding system

Country Status (1)

Country Link
CN (1) CN111844408A (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2776450A (en) * 1950-12-11 1957-01-08 H D Boggs Company Ltd Centrifugal casting apparatus
JPH0784009B2 (en) * 1992-10-16 1995-09-13 太陽インダストリー株式会社 Kneading control method for resin concrete
CN101654963A (en) * 2008-08-21 2010-02-24 陈子成 Annular prestressed concrete electric pole and production process thereof
CN102172984A (en) * 2010-12-23 2011-09-07 上海中技桩业股份有限公司 Novel die assembly distribution system with reducing feed pipe and method
CN103737710A (en) * 2014-01-24 2014-04-23 四川华西绿舍建材有限公司 Concrete distributing device of prestressed centrifugal pile
CN103817792A (en) * 2014-03-10 2014-05-28 苏州混凝土水泥制品研究院有限公司 Method of producing prestressed concrete pole
CN104416675A (en) * 2013-09-02 2015-03-18 青岛兴河建材有限公司 Manufacturing process of pre-tensioned prestressed centrifugal concrete square pile
CN104476667A (en) * 2014-11-26 2015-04-01 沈立 Novel production process of electric pole
CN107803924A (en) * 2017-11-09 2018-03-16 广东永基电力器材厂有限公司 A kind of annular concrete electric pole production line and its production technology
CN109854065A (en) * 2019-03-22 2019-06-07 云南省楚雄恒基管道工业有限责任公司 A kind of annular concrete electric pole production technology

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2776450A (en) * 1950-12-11 1957-01-08 H D Boggs Company Ltd Centrifugal casting apparatus
JPH0784009B2 (en) * 1992-10-16 1995-09-13 太陽インダストリー株式会社 Kneading control method for resin concrete
CN101654963A (en) * 2008-08-21 2010-02-24 陈子成 Annular prestressed concrete electric pole and production process thereof
CN102172984A (en) * 2010-12-23 2011-09-07 上海中技桩业股份有限公司 Novel die assembly distribution system with reducing feed pipe and method
CN104416675A (en) * 2013-09-02 2015-03-18 青岛兴河建材有限公司 Manufacturing process of pre-tensioned prestressed centrifugal concrete square pile
CN103737710A (en) * 2014-01-24 2014-04-23 四川华西绿舍建材有限公司 Concrete distributing device of prestressed centrifugal pile
CN103817792A (en) * 2014-03-10 2014-05-28 苏州混凝土水泥制品研究院有限公司 Method of producing prestressed concrete pole
CN104476667A (en) * 2014-11-26 2015-04-01 沈立 Novel production process of electric pole
CN107803924A (en) * 2017-11-09 2018-03-16 广东永基电力器材厂有限公司 A kind of annular concrete electric pole production line and its production technology
CN109854065A (en) * 2019-03-22 2019-06-07 云南省楚雄恒基管道工业有限责任公司 A kind of annular concrete electric pole production technology

Similar Documents

Publication Publication Date Title
CN103758291A (en) Shearing reinforcing type semi-grouting sleeve
CN103899044B (en) Embedded pyramidal full grout sleeve
CN202000251U (en) Cylindrical hollow prefabricated prestressed concrete pier structure
CN202330118U (en) Concrete block forming mold for tests
CN208529402U (en) A kind of disposal pouring multipurpose steel reinforced concrete pool production mould
CN103770214A (en) Production method for telegraph pole based on self-compacting concrete
CN204221964U (en) A kind of extruding demolding structure producing reinforced concrete pipe
CN111844408A (en) Method for producing electric pole by using automatic concrete pumping and feeding system
CN106592777B (en) Assembled steel-is mixed to combine beam-column node structure and its implementation method
CN205466673U (en) Concrete flotation tank forming die
CN205576904U (en) Prestressing force high -strength concrete area stake point tubular pile
CN201833472U (en) Die for making prestressed hollow square pile by method of vibration forming
CN201981549U (en) Precast electric pole pile
CN204221963U (en) A kind of system of being produced reinforced concrete pipe by two vibration source extruding demoulding
CN204225360U (en) A kind of prefabricated post and the syndeton with precast beam
CN203031762U (en) Tubular pile centrifugal forming mould
CN211200926U (en) Barrel-shaped PC component with hole
CN211137595U (en) Concrete prefabricated part filling production equipment
CN205348170U (en) In dig method prestressed concrete pipe pile
CN212319029U (en) Novel pipeline prefabricated part and inspection well pipeline structure
CN202850017U (en) Modified type prestress high-strength concrete hollow square pile
CN202053369U (en) Concrete precast element placer
CN202727092U (en) Plugging device for position of straight rib of side mold of precast concrete component of wall
CN211517880U (en) A pour mould for precast concrete inspection shaft
CN205088676U (en) Shaped steel - concrete makes up stress tube stake in advance

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination