CN204644400U - A kind of novel three-stage non-oxidation continuous annealer - Google Patents
A kind of novel three-stage non-oxidation continuous annealer Download PDFInfo
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- CN204644400U CN204644400U CN201520294151.2U CN201520294151U CN204644400U CN 204644400 U CN204644400 U CN 204644400U CN 201520294151 U CN201520294151 U CN 201520294151U CN 204644400 U CN204644400 U CN 204644400U
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Abstract
The utility model discloses a kind of novel three-stage non-oxidation continuous annealer, preheating section, heating zone and three, slow cooling section thermal treatment section is provided with successively by delivery direction before heating between rollgang and the rear runoff table of heating, by being built in the electromagnetic induction heater in three thermal treatment sections, laser heating is carried out to the annealing part transmitted in three thermal treatment sections, and properly distributed is carried out to heating required time and power, reach heating process temperature requirement and thermal treatment object.Described preheating section, heating zone and three, slow cooling section thermal treatment section can delete combination by technological temperature requirement, set different thermal treatment group modes, adapt to multiple annealing process requirement, the highly versatile of equipment, utilization ratio is high, and reduce production cost, thermal effectiveness is good.Annealing part all can realize forward and reverse reciprocating transmission by rollgang in tank in each thermal treatment section, makes to be heated evenly, to cool evenly, and the temperature difference controls at <2C °, improves final thermal effectiveness.
Description
Technical field
The utility model relates to metal heat treatmet field, is specifically related to a kind of novel three-stage non-oxidation continuous annealer being applicable to the straight long metal heat treatment of workpieces such as steel pipe, rod iron.
Background technology
Metal heat treatmet is one of important process in machinofacture, metal works is placed on there is heating in certain medium, insulation, cooling, by changing the metallurgical structure of surface of workpiece or inside, control a kind of metal fever complete processing of its performance.Compared with other complete processings, metal heat treatmet does not generally change the shape of workpiece and overall chemical composition, but by changing the microstructure of inside workpiece, or change the chemical composition of workpiece surface, give or improve the use properties of workpiece.Annealing refers to and metal is slowly heated to certain temperature, keeps enough time, then cools with Reasonable Speed.The object of annealing is: reduce hardness, improve machinability; Eliminate unrelieved stress, stable dimensions, reduce distortion and be inclined to crackle; Crystal grain thinning, adjustment tissue, eliminates tissue defects; Homogeneous material microstructure and composition, improves material property or prepares for doing tissue with postheat treatment.
In prior art, the anneal of metal works is generally all completed in an annealing furnace, such annealing furnace not only structure is more complicated, power consumption is large, and cost is high, and efficiency is low, and for the straight elongated section bar annealing such as steel pipe, rod iron part, due to the limited space of annealing furnace, implement anneal difficulty comparatively large, accurately can not control annealing part heating required time and power.In heat-processed, due to the thermal conduction characteristic of part of annealing, also can cause between outer annealing part and internal layer annealing part, between the head end of annealing part and end, have obvious temperature head, can not control, in rational scope, to affect thermal effectiveness.In addition, the selection of such annealing furnace has stronger specific aim, general certain processing requirement being only suitable for certain metalloid material, for the metal works that different Annealing Property requires, then can not take into account, the versatility of equipment is not strong, utilization ratio is not high, does not have overall arrangement, adds production cost.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provide a kind of can to the straight elongated such as steel pipe, rod iron, other materials annealing part implement continuous treatment and can according to different annealing require to carry out assembly, adapt to that multiple annealing process requires, that the few thermal effectiveness of facility investment is good syllogic non-oxidation continuous annealer.
Technical solution adopted in the utility model is: a kind of novel three-stage non-oxidation continuous annealer, comprise the front rollgang of heating and the rear runoff table of heating, preheating section is provided with successively by delivery direction between two roller-ways, heating zone and three, slow cooling section thermal treatment section, described preheating section, heating zone and slow cooling section are relatively independent tank structure, preheating section temperature is set as normal temperature ~ 300 DEG C, heating zone temperature is set as 300 ~ 950 DEG C, with high temperature gate valve interval between adjacent two thermal treatment sections, with rollgang in tank, annealing part is carried through preheating section, heating zone, slow cooling section, also be connected with corrugated expansion joint between adjacent two thermal treatment sections simultaneously, described preheating section, heating zone and three, slow cooling section thermal treatment section can delete combination by technological temperature requirement, set different thermal treatment group modes, or are preheating section and slow cooling section, or be heating zone and slow cooling section, or be preheating section, heating zone and slow cooling section.
The technical scheme that the utility model improves further is: described preheating section, heating zone and slow cooling section include in tank structure, tank body extenal fixation is bled gas injection valve and protection gas detector, temperature measurer, pressure unit, at least one well heater is provided with in tank body, in this well heater and tank, rollgang is all placed in tank base, in tank, rollgang is provided with special holding structure, annealing part leave in special holding structure, and in tank rollgang transmission under pass through from heater body; In described tank, rollgang is axially arranged vertically with tank body longitudinal center line, in each tank body, be also provided with limit switch along rollgang rear and front end in tank, accurately locates the delivering position of annealing part in each tank body.
The technical scheme that the utility model further improves is: the well heater in described preheating section, heating zone and slow cooling section is electromagnetic induction heater, its heating intensity is by Frequency Converter Control, its well heater quantity sets according to processing requirement, is incubated between adjacent induction heater by indefinite form lagging material.
The beneficial effects of the utility model are: one, preheating section is provided with successively by delivery direction between rollgang and the rear runoff table of heating before heating, heating zone and three, slow cooling section thermal treatment section, by being built in the electromagnetic induction heater in three thermal treatment sections, laser heating is carried out to the annealing part entered in three thermal treatment sections by rollgang transmission in tank, and properly distributed is carried out to annealing part thermal treatment required time and power, and part of annealing can back and forth be wriggled in heat treatment process, to reduce being heated and cooling range of annealing part, reach thermal treatment temp requirement, realize thermal treatment object, two, preheating section, heating zone and three, slow cooling section thermal treatment section are with high temperature gate valve interval, form relatively independent tank structure, change the transfer mode of original straight-through, tunnel like, not only have advantage that is energy-conservation, that prevent obnoxious flavour from discharging, three thermal treatment sections also can carry out increase and decrease combination as requested, form different thermal treatment group modes, meet the annealing requirement of different heat treatment workpiece, the highly versatile of equipment, utilization ratio is high, reduces production cost, three, the setting of electromagnetic induction heater, the magnetic field utilizing the electric current of alternation to produce alternation makes metallic conductor inside wherein produce eddy current, thus metal works is generated heat rapidly.In the process of induction heating, temperature raise just by the metallic member of heated parts, compared with the heating installation such as common electricity, combustion gas, have that power is large, good heat-insulation effect, an advantage such as energy-conservation, safe; Four, part of annealing is stored in special holding structure, in single or multiple lift or round bale shape deposit, effectively to slow down or part of avoiding annealing directly is placed in the phenomenons such as collision, friction, alteration of form, generation warpage that roller-way brings are not straight, impact annealing part is advanced smoothly, thus reduction production efficiency, increase cost; Five, part of annealing all can realize forward and reverse reciprocating transmission by rollgang in tank in each thermal treatment section, the annealing heat intensity of part and heated time, cooling time can be adjusted as required, annealing part is made to be heated evenly and to cool evenly, temperature head between internal layer and outer annealing part, between the head end of annealing part and end is controlled, in rational scope, to improve final thermal effectiveness.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that the A-A of Fig. 1 is to structural representation.
Fig. 3 is that the B-B of Fig. 1 is to structural representation.
Fig. 4 is that the C-C of Fig. 1 is to structural representation.
Fig. 5 is that the D-D of Fig. 1 is to structural representation.
In figure: 1-high temperature gate valve; 2-preheating tank body; 3-corrugated expansion joint; 4-heating tank body;
5-slow cooling tank body; 6-electromagnetic induction heater; 7-electromagnetic induction heater interval is incubated; Rollgang in 8-tank; The special holding structure of 9-annealing part; 10-slow cooling is incubated; 11-well heater inlet wire post; 12-water-cooled cable; 13-well heater water inlet pipe and water outlet pipe; 14-pipe of always intaking out; 15-electrically copper bar; Rollgang before 16-heating; Export after 17-heating and send roller-way; 18-sprocket wheel; 19-roller-way variable frequency drive motors; 20-limit switch; 21-high-temperature infrared ray temperature measurer; 22-pressure unit; 23-gas injection valve of bleeding; 24-protection gas detector
embodiment
As shown in Figure 1, the utility model comprises the front rollgang 16 of heating and the rear runoff table 17 of heating, between two roller-ways, be provided with preheating section, heating zone and three, slow cooling section thermal treatment section successively by delivery direction, wherein:
Described preheating section comprises preheating tank body 2; made by Φ 1100 mm × 8 mm carbon steel pipe crimping; tank body extenal fixation is bled gas injection valve 23 and the protection such as hydrogen or nitrogen gas detector 24, high-temperature infrared ray temperature measurer 21, pressure unit 22; be provided with at least one well heater in tank body, its quantity sets according to processing requirement.Preheating temperature of the present utility model is set as normal temperature ~ 300 DEG C, and station installed by well heater has 4, supporting 2 high-temperature infrared ray temperature measurers, 2 gas injection valves of bleeding, 1 pressure unit, 1 protection gas detector.
Described heating zone comprises heating tank body 4; made by Φ 1100 mm × 8 mm carbon steel pipe crimping; tank body extenal fixation is bled gas injection valve 23 and the protection such as hydrogen or nitrogen gas detector 24, high-temperature infrared ray temperature measurer 21, pressure unit 22; be provided with at least one well heater in tank body, its quantity sets according to processing requirement.Heating temperature of the present utility model is set as 300 ~ 950 DEG C, and station installed by well heater has 8, supporting 2 high-temperature infrared ray temperature measurers, 2 gas injection valves of bleeding, 1 pressure unit, 1 protection gas detector.
Described slow cooling section comprises slow cooling tank body 5; made by Φ 720 mm × 8 mm carbon steel pipe crimping; tank body extenal fixation is bled gas injection valve 23 and the protection such as hydrogen or nitrogen gas detector 24, high-temperature infrared ray temperature measurer 21, pressure unit 22; concrete quantity is: high-temperature infrared ray temperature measurer 2; to bleed 2, gas injection valve; pressure unit 1, protection gas detector 1.
Described preheating section, heating zone and slow cooling section are relatively independent tank structure, with high temperature gate valve 1 interval between adjacent two thermal treatment sections, through in preheating section, heating zone and slow cooling section with rollgang in tank 8 part of annealing.Corrugated expansion joint 3 is also connected with, the displacement produced after straining the thermal expansion between each section between adjacent two thermal treatment sections.In electromagnetic induction heater 6 and tank, rollgang 8 is all placed on tank base axis, in tank, rollgang traverses in each tank body, and the position, rear and front end in each tank body is also provided with limit switch 20, the delivering position of annealing part in each tank body is accurately located.Limit switch 20 is set as 4,4 and 2 respectively in the quantity of preheating section, heating zone and slow cooling section.Described high temperature gate valve 1 is the control valve that annealing part enters preheating section, heating zone and slow cooling section, and its latus rectum DN500mm, the > of resistance to temperature 950 DEG C, can adopt Electronic control, leakage rate < 1.0 %.As shown in Figure 3, described tank body lays > 100mm thickness ceramic fiber, and the interval insulation 7 between induction heater and induction heater adopts the resistance to material insulation of the indefinite forms such as mullite, tank surface temperature < 55 DEG C.
As shown in Figure 4,5, described induction heater 6, well heater inlet wire post 11, water-cooled cable 12, well heater water inlet pipe and water outlet pipe 13, always intake out pipe 14, electrically copper bar 15 and rectifying inversion cabinet, capacitor bank form heating system jointly.
Before described heating, after rollgang 16, heating, runoff table 17 and interior rollgang 8 non-magnet_conductible material make V-type roller, roller footpath Φ 102mm × 14mm stainless steel seamless pipe makes, roller adopts water cooled rolls (water-cooling swivel joint), have 32 roller-ways, each axle head adopts one group of bearing, and roller footpath and tank body seal and adopt graphite packing.As shown in Figure 2, roller-way adopts variable-frequency motor 19 to drive, roller-way transmission chain bar formula, and can adjust arbitrarily by sprocket wheel 18 the part speed of travel that roller-way anneals, and can realize forward and reverse reciprocating transmission, a motor can also drive multiple roller.
Described annealing part leaves in special holding structure 9, this special holding structure 9 comprises fixed mounting base, described fixed mounting base to be fixed on after rollgang 16 before heating, heating in runoff table 17 and tank on rollgang 8,60 mm × 30 mm stainless steel channel-section steels are adopted to make, be rolled into circular upper shed frame-shaped, annealing part enters from this circular open frame upper shed, is that single or multiple lift or round bale shape are deposited, meets different annealing requirement in frame.Be connected with at the inwall of fixed mounting base circular open frame and build resistance to material, resistance to material contacts with by the annealing part heated, and avoids stainless steel channel-section steel directly to contact with by heating anneal part.Described fixed mounting base at least two, quantity, according to annealing part length setting, connects with stainless channel-section steel 60 mm × 30 mm between two adjacent fixed mounting bases, increases rigidity.Contact with the arc be fixed on roller-way bottom described fixed mounting base, this arc is bent into by 10mm stainless steel plate, and the circular open frame profile of its arc and fixed mounting base is coincide.
Described preheating section, heating zone and three, slow cooling section thermal treatment section can delete combination by technological temperature requirement, set different thermal treatment group modes, or are preheating section and slow cooling section, or be heating zone and slow cooling section, or be preheating section, heating zone and slow cooling section.
Concrete annealing process flow process is as follows:
(1) material loading: annealing part loads in special holding structure, hangs on chain transfer, by chain transfer, special holding structure is moved on on retainer machine, special holding structure holder to heating front roller-way, prepares before carrying out heating by retainer machine.
(2) preheating: preheating can high-temperature valve is opened; load annealing part in special holding structure and with 25m/min speed, annealing part is delivered to preheating can by heating front roller-way; high-temperature valve is closed; open gas injection valve and vent valve; air is extruded as protection gas according to annealing part processing requirement note hydrogen or nitrogen; tank body pressure is detected by pressure unit; with protection gas (hydrogen, nitrogen etc.) detector detected gas content; in tank, gas content and pressure (being greater than normal atmosphere) the gas injection valve that meets the demands cuts out, in real time monitoring tank internal pressure and gas content change.120KW(4 platform) induction heater start heating, annealing part in preheating can 1-5m/min to-and-fro movement, spacing by former and later two photoelectric position limit devices, two high-temperature infrared ray temperature measurer temperature monitorings, are heated to and meet processing requirement.
(3) heat: open heating zone gas injection valve and vent valve; note protection gas extruding air, with protection gas detector detected gas content, after reaching processing requirement; detect tank body pressure by pressure unit, in tank, gas content and pressure (being greater than normal atmosphere) the gas injection valve that meets the demands cuts out.High-temperature valve is opened, and special holding structure sends heating tank by roller-way to 25m/min speed, and high-temperature valve is closed, special holding structure is in heating tank 1-5m/min to-and-fro movement, have two photoelectric position limit devices spacing by front and back, two high-temperature infrared ray temperature measurer temperature monitorings, are heated to and meet processing requirement.
(4) slow cooling: open slow cooling section gas injection valve and vent valve; note protection gas extruding air, with protection gas detector detected gas content, after reaching processing requirement; detect tank body pressure by pressure unit, in tank, protection atmospheric pressure (being greater than normal atmosphere) the gas injection valve that meets the demands cuts out.High-temperature valve is opened, and special holding structure delivers to slow cooling tank by roller-way with 25m/min speed, spacing by photoelectric position limit device, and high-temperature valve is closed, and annealing part is in the cooling of slow cooling tank, and two high-temperature infrared ray temperature measurer temperature monitorings, temperature drops to and meets processing requirement.Open slow cooling tank outlet high-temperature valve, special holding structure outputs slow cooling tank.
(5) blanking: steel pipe reaches the rear roller-way of heating, and by retainer machine, special holding structure is moved to chain type material moving machine, chain type material moving machine moves on to special holding structure on blanking chain, carries out handling and prepares.
Claims (5)
1. a novel three-stage non-oxidation continuous annealer, comprise the front rollgang of heating and the rear runoff table of heating, preheating section is provided with successively by delivery direction between two roller-ways, heating zone and three, slow cooling section thermal treatment section, it is characterized in that: described preheating section, heating zone and slow cooling section are relatively independent tank structure, preheating section temperature is set as normal temperature ~ 300 DEG C, heating zone temperature is set as 300 ~ 950 DEG C, with high temperature gate valve interval between adjacent two thermal treatment sections, with rollgang in tank, annealing part is carried through preheating section, heating zone, slow cooling section, also be connected with corrugated expansion joint between adjacent two thermal treatment sections simultaneously, described preheating section, heating zone and three, slow cooling section thermal treatment section can delete combination by technological temperature requirement, set different thermal treatment group modes, or are preheating section and slow cooling section, or be heating zone and slow cooling section, or be preheating section, heating zone and slow cooling section.
2. novel three-stage non-oxidation continuous annealer according to claim 1, it is characterized in that: described preheating section, heating zone and slow cooling section include in tank structure, tank body extenal fixation is bled gas injection valve and protection gas detector, temperature measurer, pressure unit, at least one well heater is provided with in tank body, in this well heater and tank, rollgang is all placed in tank base, annealing part is stored in special holding structure, rollgang is axially arranged vertically with tank body longitudinal center line, and the position, rear and front end in each tank body is also provided with limit switch, the delivering position of annealing part in each tank body is accurately located.
3. novel three-stage non-oxidation continuous annealer according to claim 2, it is characterized in that: the well heater in described preheating section, heating zone and slow cooling section is electromagnetic induction heater, its heating intensity is by Frequency Converter Control, its well heater quantity sets according to processing requirement, is incubated between adjacent induction heater by indefinite form lagging material.
4. novel three-stage non-oxidation continuous annealer according to claim 2, is characterized in that: described special holding structure comprises the fixed mounting base of several circle, is provided with web member between adjacent fixed mounting base; The top of described fixed mounting base offers the feeding mouth of annealing part, and bottom contacts with the arc be fixed on rollgang, and the arc of arc and the round-shaped of fixed mounting base coincide.
5., according to the arbitrary described novel three-stage non-oxidation continuous annealer of Claims 1-4, it is characterized in that: in described tank, rollgang adopts chain driving, drives, and can realize forward and reverse reciprocating transmission by variable-frequency motor.
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| CN201520294151.2U CN204644400U (en) | 2015-05-08 | 2015-05-08 | A kind of novel three-stage non-oxidation continuous annealer |
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| CN201520294151.2U CN204644400U (en) | 2015-05-08 | 2015-05-08 | A kind of novel three-stage non-oxidation continuous annealer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106191393A (en) * | 2015-05-08 | 2016-12-07 | 双立恒通新材料科技（淮安）有限公司 | A kind of novel three-stage non-oxidation continuous annealer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106191393A (en) * | 2015-05-08 | 2016-12-07 | 双立恒通新材料科技（淮安）有限公司 | A kind of novel three-stage non-oxidation continuous annealer |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200117 Address after: 503, Beidou building, No. 6, Huida Road, Jiangbei new district, Nanjing City, Jiangsu Province Patentee after: Nanjing ningtie NDT Technology Research Institute Co., Ltd Address before: 223300 No. 228, Huaihe Road, Huaiyin District, Jiangsu, Huaian Patentee before: Shuangli Hengtong New Material Technology (Huaian) Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200717 Address after: 223300 No. 228, Huaihe Road, Huaiyin District, Jiangsu, Huaian Patentee after: SHUANGLI HENGTONG NEW MATERIAL TECHNOLOGY (HUAIAN) Co.,Ltd. Address before: 503, Beidou building, No. 6, Huida Road, Jiangbei new district, Nanjing City, Jiangsu Province Patentee before: Nanjing ningtie NDT Technology Research Institute Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20210508 |