CN214830554U

CN214830554U - Simple and efficient local annealing device

Info

Publication number: CN214830554U
Application number: CN202120546419.2U
Authority: CN
Inventors: 江济; 吴运动
Original assignee: Masteel Heavy Machinery Manufacturing Co Of Anhui
Current assignee: Masteel Heavy Machinery Manufacturing Co Of Anhui
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-11-23
Anticipated expiration: 2031-03-16

Abstract

The utility model discloses a simple efficient local annealing device belongs to metallurgical equipment technical field. The utility model comprises a bottomless box body, wherein the box body is positioned above a workpiece to be locally annealed and can completely cover the workpiece to be locally annealed; the top of the box body is provided with a vent hole, and the bottoms of the two sides of the box body are provided with a plurality of air doors; and a combustion mechanism and an automatic curve recording device are arranged at the lower part of the box body. The size of the box body of the utility model can meet the size requirements of different workpieces, and local annealing is carried out on different workpieces; when the combustion mechanism burns, the air door communicates with the inside of the box body and the outside air, so that sufficient oxygen in the air is provided for combustion, an oxygen cylinder does not need to be additionally arranged, the potential safety hazard is greatly reduced, real-time temperature tracking recording can be realized by automatic recording curve equipment, the annealing quality is reliable and stable, the original processing surface is protected, and the original size precision is almost not influenced, so that the local annealing is efficiently and conveniently completed.

Description

Simple and efficient local annealing device

Technical Field

The utility model relates to a metallurgical equipment technical field, the more specifically simple efficient local annealing device that says so.

Background

In the manufacturing of equipment such as frames and converter backing rings in continuous casting and rolling sector equipment and the repair of mine spare parts in various factories, the problems of local annealing of parts to eliminate welding stress and the like are often faced.

There are currently two main solutions: in the first scheme, an electric crawler belt is adopted to wrap a welding seam for local heating to eliminate welding stress; the method has low heating efficiency, long annealing time and is influenced by the shape of the workpiece. In the second scheme, if the requirement of the processing surface is not high, the size of the workpiece meets the space requirement of an annealing furnace, and the whole annealing is carried out in the furnace to eliminate the welding stress; the method is used for integral annealing, has high annealing cost, is easy to damage a processing surface, influences the original dimensional precision requirement and increases the transportation cost.

Through retrieval, relevant patents are disclosed at present for solving the defects of low heating efficiency of the electric crawler and high overall annealing cost. For example, the Chinese patent application number is: cn201020289851.x, application date is: the utility model discloses a 2010 8 months 12 days's utility model patent discloses a local annealing device of high frequency, including the high frequency heating machine, be equipped with the motor by the high frequency heating machine, install the transmission shaft in the pivot of motor, be equipped with the work piece centre gripping axle sleeve that is used for the processed work piece of centre gripping on the transmission shaft to the heating coil setting of high frequency heating machine is in the top of work piece centre gripping axle sleeve). The workpiece to be processed in the scheme is clamped by the clamping shaft sleeve, and the applicable workpiece is small, so that the device is limited in application range and cannot be applied to local annealing of parts such as frames, converter backing rings and the like in continuous casting and rolling sector equipment.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

To the limited problem of current annealing device application range, the utility model designs a local annealing device of simple efficient for to the local annealing of parts such as frame, converter trunnion ring in the continuous casting and rolling fan-shaped section equipment, this device can satisfy the different dimensional requirement of local annealing department, because of heating space is little, heaies up very fast, realizes the convenient local annealing of efficient to the work piece of difference.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

a simple and efficient local annealing device comprises a bottomless box body, wherein the box body is positioned above a workpiece to be locally annealed; a combustion mechanism and an automatic curve recording device are arranged at the lower part of the box body; a plurality of air doors have been seted up to the bottom of the both sides of box, and during the burning of combustion mechanism, the inside and outside air of air door intercommunication box, for the burning provides sufficient oxygen, the automatic recording curve equipment can realize real-time temperature tracking record, makes annealing quality reliable and stable, has protected original machined surface, and is almost not influenced to former size precision to high-efficient, convenient completion local annealing.

According to the further technical scheme, the combustion mechanism is provided with a plurality of burners, the number of the burners is set according to the size of the space of the box body, the burners combust through natural gas, coal gas or propane and other gases, and the heating space of the box body is small, the gas combustion value is high, and the temperature rise is fast; the burner is located below the workpiece and has a certain distance from the workpiece, so that the effect is prevented from being influenced by directly blowing and burning the workpiece.

According to the further technical scheme, the automatic curve recording equipment is a thermocouple, and real-time monitoring and recording of the temperature of the annealing box are achieved.

According to the further technical scheme, the size of the box body is matched with that of the workpiece to be locally annealed, and the workpiece to be locally annealed is covered.

Further technical scheme, the top of box has been seted up the air vent, and air vent and air door are used for the cooperation to use, and the air vent communicates the inside and outside air of box, provides sufficient oxygen for the burning.

According to the technical scheme, the insulation board is mounted on the inner side wall of the box body, and the insulation performance is met.

According to the further technical scheme, the box body is square and is made of a steel plate with the thickness of 5 mm.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the simple and efficient local annealing device of the utility model has the advantages that the size of the box body can meet the size requirements of different workpieces, parts at the local annealing position can be covered, and local annealing is carried out on different workpieces; inside and the outside air of air door intercommunication box on the box, provide the oxygen in the sufficient air for the burning, consequently the device's combustion mechanism need not additionally add the oxygen cylinder during the burning, very big reduction the potential safety hazard, the real-time temperature tracking record can be realized to automatic recording curve equipment, makes annealing quality reliable and stable, has protected original machined surface, does not have the influence nearly to former size precision to high efficiency, convenient completion local annealing, production efficiency is high, green.

(2) The utility model discloses a simple efficient local annealing device, the nozzle number of burning mechanism sets up according to box space size, satisfies the requirement of evenly rising temperature to the nozzle is equipped with certain distance with the work piece, avoids directly blowing to burn, influences the effect to the work piece.

(3) The utility model discloses a simple efficient local annealing device, the nozzle burns through natural gas, coal gas or propane etc. and gas combustion value is high, and it is very fast to heat up.

(4) The utility model discloses a simple efficient local annealing device, automatic recording curve equipment such as thermocouple that sets up in the box lower part for the realization makes annealing quality reliable and stable to the real-time supervision and the record of annealing case temperature.

(5) The utility model discloses a simple efficient local annealing device, air door and air vent are used for intercommunication box inside and outside air, for the combustion provides sufficient oxygen, through air door and air vent, satisfy the requirement of local annealing intensification, cooling rate and heat preservation temperature.

Drawings

Fig. 1 is a schematic structural diagram of the box body of the present invention.

In the figure: 1. a box body; 2. a vent hole; 3. a damper.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings.

Example 1

The simple and efficient local annealing device of the embodiment is composed of a box body 1, a heat insulation plate, a combustion mechanism 4, an automatic curve recording device 5 and the like as shown in fig. 1.

The box body 1 is a bottomless square box body 1, the size of the box body 1 is manufactured by using a steel plate with the thickness of 5mm according to different workpiece size requirements, the steel plate is positioned above a workpiece to be locally annealed, and the box body 1 can completely cover the workpiece.

The lower part of the front baffle of the box body 1 is provided with an opening for putting the combustion mechanism 4 into the box body 1 from the opening at the lower part of the front baffle. The combustion mechanism 4 is a plurality of self-made burners, the burners are located in the box body 1, the number of the burners is set according to the space size of the box body 1, and the requirement of uniform temperature rise is met. And the burner is positioned below the workpiece and has a certain distance with the workpiece, so that the effect is prevented from being influenced by directly blowing and burning the workpiece. The burner is connected with a pipeline, the pipeline is used for conveying natural gas, coal gas or propane and the like, the natural gas, the coal gas or the propane and the like are combusted, the combustion value is high, and the temperature rise is fast.

An insulation board with good insulation performance is detachably mounted on the inner side wall of the box body 1 through bolts, and the insulation performance of the box body is met. When the burner is burning, in order to further ensure the temperature inside the box body 1, a heat insulation curtain is arranged outside the front baffle plate of the box body 1. The heat preservation curtain is provided with a through hole, and the burner pipe penetrates through the through hole to enter the box body 1 so as to provide combustion gas for the burner.

For the oxygen in the make full use of air, avoid addding the loaded down with trivial details and the insecurity of oxygen cylinder a plurality of definite sizes's air door 3 has all been seted up to the bottom of the both sides of box 1, and air door 3 intercommunication box 1 is inside and outside air, provides the oxygen in the sufficient air for the burning, has reduced the potential safety hazard of addding the oxygen cylinder. Air vent 2 has been seted up at the top of box 1, and air vent 2 also is used for communicateing box 1 inside and outside air, for the burning provides oxygen, uses through the cooperation of air door 3 and air vent 2, satisfies the requirement of local annealing intensification, cooling rate and heat preservation temperature.

The lower part of the box body 1 is also provided with an automatic curve recording device 5, and the automatic curve recording device 5 is a thermocouple and is used for realizing real-time monitoring and recording of the temperature of the annealing box, so that the annealing quality is reliable and stable.

The embodiment can meet different size requirements of a local annealing part of a workpiece, the burner is burnt by natural gas, coal gas or propane and other gases, and the heating space of the box body 1 is small, so that the gas combustion value is high, and the temperature rise is fast. The local annealing device of the embodiment changes the adverse conditions of low heating efficiency of the electric crawler and long annealing time, reduces the annealing cost, protects the original processing surface, almost has no influence on the original size precision, realizes real-time temperature tracking record on different workpieces through the thermocouple, ensures reliable and stable annealing quality, completes high-efficiency and convenient local annealing, and has high production efficiency and environmental protection.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. A simple and efficient local annealing device is characterized in that: the annealing device comprises a bottomless box body (1), wherein the box body (1) is positioned above a workpiece to be locally annealed; a combustion mechanism (4) and an automatic curve recording device (5) are arranged at the lower part of the box body (1); the bottom of the two sides of the box body (1) is provided with a plurality of air doors (3).

2. A simple and efficient localized annealing device as claimed in claim 1, further comprising: the combustion mechanism (4) is a plurality of burners, and the burners are located below the workpiece.

3. A simple and efficient localized annealing device as claimed in claim 1, further comprising: the automatic curve recording equipment (5) is a thermocouple.

4. A simple and efficient local annealing apparatus according to claim 1, 2 or 3, wherein: the size of the box body (1) is matched with that of the workpiece to be locally annealed.

5. A simple and efficient localized annealing device as claimed in claim 4, wherein: the top of the box body (1) is provided with a vent hole (2).

6. A simple and efficient localized annealing device as claimed in claim 5, wherein: the inner side wall of the box body (1) is detachably provided with a heat insulation plate.

7. A simple and efficient localized annealing device as claimed in claim 6, wherein: the box body (1) is square.