CN217052328U - Salt bath heat treatment comprehensive experiment platform for high-speed wire rods - Google Patents
Salt bath heat treatment comprehensive experiment platform for high-speed wire rods Download PDFInfo
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- CN217052328U CN217052328U CN202123240019.8U CN202123240019U CN217052328U CN 217052328 U CN217052328 U CN 217052328U CN 202123240019 U CN202123240019 U CN 202123240019U CN 217052328 U CN217052328 U CN 217052328U
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Abstract
The utility model discloses a high-speed wire rod salt bath thermal treatment comprehensive experiment platform, including material loading platform, heating furnace, salt bath groove and discharge table, the material loading platform includes material loading table roll table, and the heating furnace includes the heating furnace roll table, and the salt bath groove includes salt bath groove roll table, and the discharge table includes the discharge table roll table, and material loading table roll table, heating furnace roll table, salt bath groove roll table and discharge table roll table are respectively by a motor individual drive, meet in proper order and constitute continuous type equipment. The utility model discloses a platform is synthesized in high-speed wire rod salt bath thermal treatment possesses controllable atmosphere heating, functions such as salt bath cooling characteristic test, and salt bath temperature, flow field, velocity of flow isoparametric are adjustable, can carry out mechanical structure's service performance aassessment and optimization test simultaneously.
Description
Technical Field
The utility model belongs to salt bath heat treatment field, in particular to high-speed wire rod salt bath heat treatment comprehensive experiment platform.
Background
For a long time, after the wire rod of a high-speed rolling mill wire rod production line is spinned, the microstructure and the mechanical property of the wire rod are controlled on a stelmor cooling line by adjusting the speed and other parameters of a fan, a heat preservation cover, a roller way and the like. The cooling mode cannot meet the production requirement of the ultrahigh-strength large-size wire rod due to insufficient cooling capacity, and the molten salt solution becomes a good substitution mode due to the high physical properties such as heat capacity, heat conductivity and the like. The salt bath is applied to cooling after rolling of high-speed wire rods, so that many problems need to be solved urgently, such as the influence of a wire rod stacking mode and density on cooling, the influence of the temperature and flow speed of the salt bath on the cooling of the wire rod, the reliability of a mechanical structure in a high-temperature and high-corrosion environment and the like, and if the reliable data are not obtained and a targeted design is made, the industrial implementation of the salt bath is difficult.
SUMMERY OF THE UTILITY MODEL
The utility model provides a high-speed wire rod salt bath thermal treatment comprehensive experiment platform, this platform possess functions such as the controllable atmosphere heating of wire rod, salt bath cooling characteristic test, salt bath temperature, flow field, velocity of flow isoparametric are adjustable, can carry out mechanical structure's service performance aassessment and optimization test simultaneously, and the data that acquire through this experiment platform help high-speed wire rod salt bath thermal treatment's industrial design.
The utility model provides a pair of high-speed wire rod salt bath thermal treatment comprehensive experiment platform, including material loading platform, heating furnace, salt bath groove and discharge table, the material loading platform includes the material loading table roll table, and the heating furnace includes the heating furnace roll table, and the salt bath groove includes salt bath groove roll table, and the discharge table includes the discharge table roll table, and material loading table roll table, heating furnace roll table, salt bath groove roll table and discharge table roll table are respectively by a motor individual drive, meet in proper order and constitute continuous type equipment.
Preferably, the heating furnace is a roller hearth furnace and comprises a furnace body, an electric heater I, a front furnace door, a rear furnace door, a front furnace door lifting mechanism and a rear furnace door lifting mechanism; the front furnace door and the rear furnace door are arranged at the front and rear positions of the furnace body, the furnace body is communicated from front to back, the upper part and the lower part of the furnace body are respectively provided with an electric heater I, the front furnace door lifting mechanism is arranged above the front furnace door to control the front furnace door, and the rear furnace door lifting mechanism is arranged above the rear furnace door to control the rear furnace door.
Preferably, the top of the furnace body is provided with a methanol dripping port and a nitrogen adding port, a reducing protective atmosphere is formed by utilizing the cracking of methanol, and the oxidizing property of the atmosphere in the furnace is adjusted by controlling the dripping amount of the methanol and the adding amount of inert gas nitrogen.
Preferably, the heating furnace is used at the temperature of 600-1000 ℃.
Preferably, the salt bath roller way is provided with a front salt bath roller way lifting system and a rear salt bath roller way lifting system, the salt bath roller way is controlled to be lifted integrally, and the salt bath roller way can be detached integrally and is convenient to replace with other conveying mechanisms when a fault occurs.
Preferably, the salt bath further comprises: go up salt groove, salt bath, molten salt pump and electric heater II down, go up the salt groove and be equipped with the pipeline, be equipped with on the pipeline and spray the hole, the pipeline is connected with the molten salt pump, and the molten salt pump passes through the pipeline input salt bath with salt bath salt liquid down, sprays on the wire rod through spraying the hole, and salt bath under the surplus salt liquid overflow returns, and electric heater II sets up in salt bath down for the intensification and the heat preservation of salt liquid.
Preferably, the outer layer of the lower salt tank is provided with a heat insulation material and a shell; the number, the positions and the sizes of the spraying holes are adjusted according to experimental requirements and are used for adjusting experimental parameters such as the flow field and the flow velocity of the salt bath.
Preferably, the salt bath temperature is 150 ℃ to 580 ℃.
The utility model has the advantages that:
1. the top of the furnace body is provided with a methanol dripping port and a nitrogen adding port, the methanol is cracked to form a reductive protective atmosphere, and the oxidizability of the atmosphere in the furnace can be adjusted by controlling the dripping amount of the methanol and the adding amount of the inert gas nitrogen.
2. Salt bath groove roll table hoist system and back salt bath groove roll table hoist system before being equipped with, control salt bath groove roll table and carry out whole lift, the during operation height reduces, wholly immerses the salt solution and accomplishes the experiment, and the salt bath groove roll table immerses the degree of depth of salt solution adjustable in order to satisfy different experimental parameter requirements, and salt bath groove roll table can wholly dismantle, changes to other transport mechanism when being convenient for break down.
3. The electric heater II is arranged in the lower salt bath and used for heating and preserving the temperature of salt solution, and different salt bath experiment temperatures are set according to experiment requirements; the number, the position and the size of the spraying holes are adjusted according to the experiment requirements and are used for adjusting the experiment parameters such as the flow field, the flow speed and the like of the salt bath.
In conclusion, the experiment platform has the functions of controllable atmosphere heating of the wire rod, salt bath cooling characteristic testing and the like, parameters such as the temperature, the flow field and the flow velocity of the salt bath are adjustable, meanwhile, service performance evaluation and optimization tests of a mechanical structure can be carried out, and data obtained through the experiment platform is beneficial to industrial design of salt bath heat treatment of the high-speed wire rod.
Drawings
FIG. 1 is a front view of a salt bath heat treatment comprehensive experiment platform for high-speed wire rods of the utility model;
FIG. 2 is a left view of a salt bath heat treatment comprehensive experiment platform for high-speed wire rods of the present invention;
FIG. 3 is a top view of a salt bath heat treatment comprehensive experiment platform for high-speed wire rods according to the present invention;
the attached drawings are marked as follows:
1. the device comprises a feeding table, 2, a heating furnace, 3, a salt bath groove, 4, a discharging table, 5, a wire rod, 11, a feeding table roller way, 21, a heating furnace roller way, 31, a salt bath groove roller way, 41, a discharging table pipeline, 22, a furnace body, 23, an electric heater I, 24, a front furnace door, 25, a rear furnace door, 26, a front furnace door lifting mechanism, 27, a rear furnace door lifting mechanism, 221, a methanol dripping injection port, 222, a nitrogen adding port, 32, a salt feeding groove, 33, a salt discharging groove, 34, a molten salt pump, 35, an electric heater II, 36, a pipeline, 37, a spraying hole, 38, a heat insulation material, 39, a shell, 311, a front salt bath groove lifting system, 312, and a rear salt bath groove roller way lifting system.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and should not be construed as limiting the scope of the invention.
The embodiment of the utility model provides a as follows, as shown in fig. 1 a high-speed wire rod salt bath thermal treatment comprehensive experiment platform, including material loading platform 1, heating furnace 2, salt bath groove 3 and discharge table 4, material loading platform 1 includes material loading table roll table 11, heating furnace 2 includes heating furnace roll table 21, salt bath groove 3 includes salt bath groove roll table 31, discharge table 4 includes discharge table roll table 41, material loading table roll table 11, heating furnace roll table 21, salt bath groove roll table 31 and discharge table roll table 41 are by a motor individual drive respectively, meet in proper order and constitute continuous type equipment, throughput is 80kG steel (the diameter is less than or equal to 16mm, the circle footpath is less than or equal to 10 rings of steel wire rod of 1100mm and controls).
The heating furnace 2 is a roller hearth furnace and comprises a furnace body 22, an electric heater I23, a front furnace door 24, a rear furnace door 25, a front furnace door lifting mechanism 26 and a rear furnace door lifting mechanism 27; the furnace body 22 is communicated front and back, the upper part and the lower part of the furnace body are both provided with an electric heater I23, a front furnace door lifting mechanism 26 is arranged above the front furnace door 24 to control the front furnace door 24, and a rear furnace door lifting mechanism 27 is arranged above the rear furnace door 25 to control the rear furnace door 25.
The top of the furnace body 22 is provided with a methanol dripping port 221 and a nitrogen adding port 222, methanol cracking is utilized to form a reducing protective atmosphere, and the oxidizing property of the atmosphere in the furnace is adjusted by controlling the dripping amount of methanol and the adding amount of inert gas nitrogen.
The using temperature of the heating furnace 2 is 600-1000 ℃.
The salt bath roller table 31 is provided with a front salt bath roller table lifting system 311 and a rear salt bath roller table lifting system 312, the salt bath roller table 31 is controlled to be integrally lifted, the heights of the front salt bath roller table and the rear salt bath roller table are flush with the heights of the heating furnace roller table 21 and the discharging table roller table 41 before and after working, the heights of the front salt bath roller table and the rear salt bath roller table are reduced during working, the salt bath roller table 31 is integrally immersed in salt solution to complete an experiment, and the depth of the salt bath roller table 31 immersed in the salt solution is adjustable to meet different experiment parameter requirements; the salt bath roller table 31 can also be integrally detached, and is convenient to replace with other conveying mechanisms when a fault occurs.
As shown in fig. 2 and 3, the salt bath 3 further includes: go up salt bath 32, lower salt bath 33, molten salt pump 34 and electric heater II 35, it is equipped with pipeline 36 to go up salt bath 32, be equipped with on the pipeline 36 and spray hole 37, pipeline 36 is connected with molten salt pump 34, molten salt pump 34 passes through pipeline 36 input upper salt bath 32 with lower salt bath 33 salt liquid, spray on the wire rod 5 through spraying hole 37, salt bath 33 under unnecessary salt liquid overflow returns, electric heater II 35 sets up in salt bath 33 down for the intensification and the heat preservation of salt liquid, can set up different salt bath experimental temperature.
The upper salt tank 32 and the lower salt tank 33 are made of 316L stainless steel, and the outer layer of the lower salt tank 33 is provided with a heat insulation material 38 and a shell 39.
The number, position and size of the spraying holes 37 can be adjusted, and the spraying holes are used for adjusting experimental parameters such as the flow field and flow velocity of the salt bath.
The salt bath 3 is used at the temperature of 150-580 ℃, and the salt solution is molten nitrate.
The experimental process of salt bath treatment of the high-speed wire rod is as follows:
placing a wire rod 5 to be tested on a feeding table 1 according to the distribution mode of a stelmor conveying line after high-speed wire rod rolling; starting control motors of the feeding table roller way 11 and the heating furnace roller way 21, conveying the experimental wire rod 5 to a working position in the heating furnace 2, closing the feeding table roller way 11 after the experimental wire rod is in place, enabling the heating furnace roller way 21 to do reciprocating motion, and lowering a front furnace door 24 and a rear furnace door 25 of the heating furnace 2 to start heating the wire rod 5; after heating is finished, a front furnace door 24 and a rear furnace door 25 of the heating furnace 2 are lifted, control motors of the heating furnace roller way 21 and the salt bath roller way 31 are started, the wire rod 5 is conveyed to a working position of the salt bath 3, and the control motors of the heating furnace roller way 21 and the salt bath roller way 31 are closed; reducing the height of the salt bath roller table 31, starting a molten salt pump 34 to carry out salt bath treatment on the wire rod 5, and alternately rotating the salt bath roller table 31 forward and backward to make the wire rod 5 reciprocate; after the salt bath treatment is finished, the salt bath roller way 31 is lifted, the salt bath roller way 31 and the discharge table roller way 41 are opened, and the treated wire rod 5 is conveyed to the discharge table 4. Wherein, the density degree of the wire rods 5 is used for simulating the production parameters of different spinning speeds, roller table speeds and the like of high-speed wires; the influence of different flow fields on the phase change of the wire rod can be simulated by adjusting the frequency of the molten salt pump, the parameters of the spray pipe, the height of the roller way and other parameters. Through many experiments, the influence of the stacking mode and density of the wire rod 5 on cooling, the influence of the temperature and flow rate of the salt bath on the cooling of the wire rod 5, the reliability of a mechanical structure in a high-temperature and high-corrosion environment and the like are found out, the industrialization of the high-speed wire rod online salt bath is greatly promoted, and the research and development risk is greatly reduced.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and embellishments can be made without departing from the principle of the present invention, and these modifications and embellishments are also regarded as the protection scope of the present invention.
Claims (6)
1. A high-speed wire salt bath heat treatment comprehensive experiment platform is characterized in that: the continuous type salt bath continuous equipment comprises a feeding table, a heating furnace, a salt bath tank and a discharging table, wherein the feeding table comprises a feeding table roller way, the heating furnace comprises a heating furnace roller way, the salt bath tank comprises a salt bath tank roller way, the discharging table comprises a discharging table roller way, and the feeding table roller way, the heating furnace roller way, the salt bath tank roller way and the discharging table roller way are respectively driven by a motor independently and are connected in sequence to form continuous type equipment.
2. The salt bath heat treatment comprehensive experiment platform for the high-speed wire rod according to claim 1, which is characterized in that: the heating furnace is a roller hearth furnace and comprises a furnace body, an electric heater I, a front furnace door, a rear furnace door, a front furnace door lifting mechanism and a rear furnace door lifting mechanism; the front furnace door and the rear furnace door are arranged at the front and rear positions of the furnace body, the furnace body is communicated from front to back, the upper part and the lower part of the furnace body are respectively provided with an electric heater I, the front furnace door lifting mechanism is arranged above the front furnace door to control the front furnace door, and the rear furnace door lifting mechanism is arranged above the rear furnace door to control the rear furnace door.
3. The salt bath heat treatment comprehensive experiment platform for the high-speed wire rod of claim 2, which is characterized in that: the top of the furnace body is provided with a methanol drip injection port and a nitrogen gas inlet.
4. The salt bath heat treatment comprehensive experimental platform for the high-speed wire rod of claim 1, which is characterized in that: the salt bath roller way is provided with a front salt bath roller way lifting system and a rear salt bath roller way lifting system, and the salt bath roller way is controlled to be lifted integrally.
5. The salt bath heat treatment comprehensive experimental platform for the high-speed wire rod of claim 1 or 4, characterized in that: the salt bath tank further comprises: go up salt groove, salt bath, molten salt pump and electric heater II down, go up the salt groove and be equipped with the pipeline, be equipped with on the pipeline and spray the hole, the pipeline is connected with the molten salt pump, and electric heater II sets up in the salt bath down.
6. The salt bath heat treatment comprehensive experiment platform for the high-speed wire rod of claim 5, which is characterized in that: the outer layer of the lower salt tank is provided with a heat insulation material and a shell; the number, the positions and the sizes of the spraying holes are adjusted according to experimental requirements.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123240019.8U CN217052328U (en) | 2021-12-22 | 2021-12-22 | Salt bath heat treatment comprehensive experiment platform for high-speed wire rods |
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| CN202123240019.8U CN217052328U (en) | 2021-12-22 | 2021-12-22 | Salt bath heat treatment comprehensive experiment platform for high-speed wire rods |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114150143A (en) * | 2021-12-22 | 2022-03-08 | 青岛特殊钢铁有限公司 | Salt bath heat treatment comprehensive experiment platform and method for high-speed wire rod |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114150143A (en) * | 2021-12-22 | 2022-03-08 | 青岛特殊钢铁有限公司 | Salt bath heat treatment comprehensive experiment platform and method for high-speed wire rod |
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