CN210481463U

CN210481463U - Heat treatment heating pipe structure of steel strand intermediate frequency furnace

Info

Publication number: CN210481463U
Application number: CN201921428250.XU
Authority: CN
Inventors: 王月琴; 刘二峰
Original assignee: Henan Hengxing Cable Shares Co ltd
Current assignee: Henan Hengxing Cable Shares Co ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-05-08
Anticipated expiration: 2029-08-30

Abstract

The utility model relates to a steel strand heat treatment device, in particular to a steel strand intermediate frequency furnace heat treatment heating pipe structure for induction heating stabilization treatment, which comprises a pipe body for induction heating of the steel strand, wherein one end of the pipe body is provided with a positive leading-out end for being connected with an intermediate frequency furnace positive output joint, and the other end of the pipe body is provided with a negative leading-out end for being connected with an intermediate frequency furnace negative output joint; the pipe body is sleeved on a steel strand to be heated. The utility model discloses simple structure, novel in design is reasonable, and heating pipe body suit is in order to carry out heat treatment to steel strand wires through intermediate frequency furnace on waiting to heat steel strand wires, makes steel strand wires heat evenly around, and rate of heating is fast, efficient, reduces the energy consumption, improves the factor of safety in the steel strand wires heat treatment process, can effectively reduce the trouble in the production process and the emergence of accident, easily promotes the implementation.

Description

Heat treatment heating pipe structure of steel strand intermediate frequency furnace

Technical Field

The utility model relates to a steel strand wires thermal treatment equipment, in particular to a steel strand wires intermediate frequency furnace thermal treatment heating tube structure for induction heating stabilization treatment.

Background

The prestressed steel strand is a widely applied building material product in the prestress industry, has the characteristics of high tensile strength, good extensibility, low relaxation value, small stress loss, excellent fatigue resistance and the like, is widely applied to the construction of basic facilities such as railway construction, highway bridges, high-rise buildings, electric power engineering, underground engineering, wharfs, airports and the like, and plays an important role in the field of national economy infrastructure. The production process flow of the steel strand comprises the following steps: raw material → acid cleaning and surface treatment → wire drawing → stranding into strand → stabilization treatment → finished product inspection → layer coil packaging. In the stabilization treatment, mineral substances such as coal, gas, oil and the like are often used as fuels or electric heating boxes for heating, so that the defects of high energy consumption, low control precision, serious pollution problem, poor labor and operation environment, rough processing technology and the like exist, the development of metal smelting, mechanical manufacturing and other thermal processing treatments is severely restricted, and the method is deviated from the current social bulk of energy conservation and emission reduction. Electromagnetic heating is used as a novel heating system, heating treatment is carried out by utilizing electromagnetic induction, eddy current is generated through magnetic lines of force of a magnetic field, an object to be heated is heated at a high speed, the purpose of heating metal materials is achieved, and the temperature can be well controlled; however, the periphery of the electromagnetic coil is usually coated with insulating paper as an insulating layer at present, so that potential safety hazards exist, and the electromagnetic coil is difficult to adapt to the requirements of high power and long-term high-temperature work.

Disclosure of Invention

Not enough to prior art, the utility model provides a simple structure, novel in design reasonable steel strand wires intermediate frequency furnace thermal treatment heating tube structure guarantees the even heating effect among the steel strand wires stabilization treatment process flow, can effectively guarantee steel strand wires product quality and life-span.

According to the design scheme provided by the utility model, a steel strand intermediate frequency furnace heat treatment heating pipe structure comprises a pipe body for induction heating of the steel strand, wherein one end of the pipe body is provided with a positive leading-out end for being connected with an intermediate frequency furnace positive output connector, and the other end of the pipe body is provided with a negative leading-out end for being connected with an intermediate frequency furnace negative output connector; the pipe body is sleeved on a steel strand to be heated.

As the heating tube structure in the present invention, further, the tube body includes an insulating sleeve and an induction tube sleeved outside the insulating sleeve; the induction pipe is formed by spirally winding an induction wire; the positive lead-out end and the negative lead-out end are respectively and correspondingly connected with two ends of the induction tube, and the steel strand to be heated penetrates through the inner cavity of the insulating sleeve.

As the utility model provides a heating tube structure, furtherly, the body contains and is the induction tube that the spiral winding formed by the response silk and pours the fire-resistant insulating material of structure as an organic whole with the induction tube to be equipped with the body inner chamber that is used for wearing to establish steel strand wires at the middle part of structure as an organic whole.

As the heating pipe structure in the utility model, furthermore, the positive and negative leading-out ends are connected with the positive and negative output joints through the transfer joint.

As the utility model provides a heating tube structure, furtherly, just, the end outer wall is drawn forth to the burden all the cladding has insulating temperature resistant protection film.

The utility model has the advantages that:

the utility model relates to a novelty, reasonable, simple structure, heating pipe body suit are in order to carry out heat treatment to steel strand wires through intermediate frequency furnace on waiting to heat steel strand wires, make steel strand wires heat evenly around, and rate of heating is fast, efficient, reduces the energy consumption, improves the factor of safety in the steel strand wires heat treatment process, can effectively reduce the trouble in the production process and the emergence of accident, easily promotes the implementation.

Description of the drawings:

FIG. 1 is a schematic view of a heating tube according to an embodiment;

FIG. 2 shows an embodiment of an inductive tube structure;

FIG. 3 is a schematic view of an exemplary embodiment of a terminal;

in the figure, reference numeral 1 represents a pipe body, reference numeral 2 represents a steel strand, reference numeral 11 represents a positive leading-out terminal, reference numeral 12 represents a negative leading-out terminal, reference numeral 13 represents a sensing tube, reference numeral 111 represents an insulating temperature-resistant protective film, and reference numeral 112 represents a sensing wire.

The specific implementation mode is as follows:

the present invention will be described in further detail with reference to the accompanying drawings and technical solutions, and embodiments of the present invention will be described in detail by way of preferred examples, but the embodiments of the present invention are not limited thereto.

The steel strand stabilizing treatment process is a key process for determining the final performance of a product in the production of low-relaxation prestressed steel strands, and not only can obviously improve the strength and the shaping index of the product, but also can greatly improve the performance, namely the stress relaxation resistance. Therefore, the embodiment of the utility model, as shown in fig. 1, provides a steel strand intermediate frequency furnace heat treatment heating pipe structure, which comprises a pipe body for induction heating of the steel strand, wherein one end of the pipe body is provided with a positive leading-out end for connecting with an intermediate frequency furnace positive output connector, and the other end is provided with a negative leading-out end for connecting with an intermediate frequency furnace negative output connector; the pipe body is sleeved on a steel strand to be heated. The accessible design body internal diameter matches with the steel strand wires external diameter size of waiting to heat, and heating pipe body suit is in order to carry out heat treatment to the steel strand wires through the intermediate frequency furnace on waiting to heat the steel strand wires, makes the heating around the steel strand wires even, and is energy-concerving and environment-protective, and rate of heating is fast, efficient, reduces the energy consumption, improves the factor of safety in the steel strand wires heat treatment process, can effectively reduce the trouble in the production process and the emergence of accident.

As an embodiment of the present invention, further, referring to fig. 2, the tube body includes an insulating sleeve and an induction tube sleeved outside the insulating sleeve; the induction pipe is formed by spirally winding an induction wire; the positive lead-out end and the negative lead-out end are respectively correspondingly connected with two ends of the induction tube, and the steel strand to be heated penetrates through the inner cavity of the insulating sleeve; the production coefficient is improved, the occurrence of accidents is effectively avoided, and the personal safety of operating personnel is ensured.

Through production test, the copper pipe as the induction pipe and the porcelain pipe as the insulating pipe are used separately, the porcelain pipe is easy to be broken in the production process due to the wire breaking condition, the copper pipe is directly broken under serious conditions, finished steel stranded wires are damaged by electric shock, the product quality is influenced, the copper pipe is frequently replaced due to the wire breaking condition, the parking time is long, and not only is the production cost increased, but also the production efficiency is reduced. For this reason, as the embodiment of the utility model provides a heating tube structure, furthermore, see that fig. 2 is shown, the body contains the induction tube that is spiral winding formation by the response silk, and pour the refractory insulation material of structure as an organic whole with the induction tube, and be equipped with the body inner chamber that is used for wearing to establish steel strand wires at the middle part of structure as an organic whole, guarantee steel strand wires uniform heating effect, integrative structural design, the medium frequency furnace temperature is stable, stabilization treatment is effectual, product quality has not only been guaranteed, copper pipe and porcelain tube are pour together simultaneously, it is durable to tie suddenly, the number of times that causes the medium frequency furnace heating pipe to damage because of disconnected silk reduces by a wide margin, and production cost is reduced, reduce the maintenance number of times, and production efficiency improves.

As the embodiment of the utility model provides an in the heating tube structure, further, just, the burden is drawn forth the end and just, through transit joint connection between the negative output connector, can effectively avoid influencing electromagnetic induction heating's normal use because of the smooth silk of attach fitting, when needing to be changed induction coil in the use, only need through spanner dismouting transit joint can, convenient, swift.

As the embodiment of the utility model provides a heating tube structure, further, see that fig. 3 is shown, just, the equal cladding of end outer wall has insulating temperature resistant protection film is drawn forth to the burden, and the protection film can adopt the alloy class material of nickeliferous or titanium according to the operation demand, also can adopt other insulating materials of high temperature resistant corrosion-resistant to make the response silk can work better in adverse circumstances such as high temperature.

The present invention is not limited to the above-described embodiments, and various changes can be made by those skilled in the art, and any changes which are equivalent or similar to the present invention are intended to be covered by the scope of the claims of the present invention.

Claims

1. A steel strand intermediate frequency furnace heat treatment heating pipe structure is characterized by comprising a pipe body for carrying out induction heating on a steel strand, wherein one end of the pipe body is provided with a positive leading-out end for being connected with a positive output connector of an intermediate frequency furnace, and the other end of the pipe body is provided with a negative leading-out end for being connected with a negative output connector of the intermediate frequency furnace; the pipe body is sleeved on a steel strand to be heated.

2. The structure of the steel strand intermediate frequency furnace heat treatment heating pipe according to claim 1, wherein the pipe body comprises an insulating sleeve and an induction pipe sleeved outside the insulating sleeve; the induction pipe is formed by spirally winding an induction wire; the positive lead-out end and the negative lead-out end are respectively and correspondingly connected with two ends of the induction tube, and the steel strand to be heated penetrates through the inner cavity of the insulating sleeve.

3. The structure of the heat treatment heating pipe of the steel strand intermediate frequency furnace according to claim 1, wherein the pipe body comprises an induction pipe formed by spirally winding an induction wire, and a refractory insulating material poured into the induction pipe into a whole structure, and an inner cavity of the pipe body for penetrating the steel strand is formed in the middle of the whole structure.

4. The structure of the steel strand intermediate frequency furnace heat treatment heating pipe according to claim 1, wherein the positive and negative leading-out terminals are connected with the positive and negative output connectors through a transfer connector.

5. The structure of the steel strand intermediate frequency furnace heat treatment heating pipe according to claim 1, wherein the outer walls of the positive lead-out end and the negative lead-out end are coated with insulating temperature-resistant protective films.