CN201660683U - Steel wire heat treatment open-fire furnace - Google Patents
Steel wire heat treatment open-fire furnace Download PDFInfo
- Publication number
- CN201660683U CN201660683U CN2010201682397U CN201020168239U CN201660683U CN 201660683 U CN201660683 U CN 201660683U CN 2010201682397 U CN2010201682397 U CN 2010201682397U CN 201020168239 U CN201020168239 U CN 201020168239U CN 201660683 U CN201660683 U CN 201660683U
- Authority
- CN
- China
- Prior art keywords
- steel wire
- burner
- heating
- heat treatment
- burners
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The utility model relates to a steel wire heat treatment open-fire furnace. The front part of a heating section is arranged to be a hot blast type structure, the two sides of the hearth are provided with hot blast burners, and the input ends of the burners are provided with an air pipe and a fuel gas pipe; the rear part of the heating section is arranged to be a premix type structure, the two sides of the hearth are provided with premixing burners, the air pipe and the fuel gas pipe are first connected with a premixer and then connected with the premixing burners through the premixer; and the heating section is provided with an integrated smoke vent and internally provided with a heat exchanger. In the utility model, the characteristic that the oxidation speed of the steel wire is low when the temperature is less than 700 DEG C is effectively utilized, and a hybrid heating mode of hot blast heating and premix heating is adopted, so the energy resource is effectively utilized, the oxidation amount of the steel wire is small and decarbonization does not occur, and the steel wire after the heat treatment has stable quality and low strength windage.
Description
Technical field
The present invention relates to the Equipment for Heating Processing field, especially heat processing naked-flame furnace.
Background technology
The thermal treatment process of steel wire is that steel wire is made the important process in the production process, and main Equipment for Heating Processing is a direct-fired heater at present, and form commonly used has following two kinds.
A kind of is the hot air type heat processing naked-flame furnace, and as shown in Figure 2, blast main 2 carries air and combustion gas to the hot blast burner 4 of burner hearth both sides respectively with gas line 3, also burns in burner 4 internal mix, to the steel wire 1 of burner hearth 8 internal spray flame heating streamlines conveying.Such direct-fired heater can pass through the inner interchanger that is provided with of smoke-uptake with the air in the heat preheated air pipe 2 of flue gas, so funnel temperature low (300～400 ℃), and energy consumption is low, and thermal treatment steel wire per ton needs 26～30m approximately
3Sweet natural gas.But the shortcoming of the direct-fired heater of this type is accurately to control the ratio of combustion gas and air, the atmosphere of each heating zone of heat processing naked-flame furnace changes with variation of temperature in the stove, steel wire is bigger in the amount of oxidation of heat-processed, reaches 3%～4%, the decarburization phenomenon therefore often occurs; And because the velocity of flue gas of burner 4 outlets is low, only have an appointment about 70m/s, so non-uniform temperature in the stove, the temperature of both sides is higher, and the temperature of central authorities is lower, and the wire quality after therefore handling is poor, and the intensity of steel wire scattered error is big, generally between 50～100MPa.
Another kind of direct-fired heater is premixed heat processing naked-flame furnace, and as shown in Figure 3, air and combustion gas are delivered to premixer 5 earlier by blast main 2 and gas line 3 respectively and carry out premix, and the pre-mixing burner 6 that is delivered to burner hearth 8 both sides by mixture pipe 7 burns then.Premixer 5 is as the disclosed structure of utility model patent " the gas-air mixing tank of 200620072712.5---industrial furnace ", can pass through rotary regulating sleeve, can change the fuel gas inlet size, thereby accurately regulate the ratio of combustion gas and air, and then can accurately control the atmosphere of each heating zone of direct-fired heater, guarantee that steel wire 1 is littler in the amount of oxidation of heat-processed, actual value is not more than 0.3%, guarantees not decarburization of steel wire; Owing to adopt premixed combustion, combustion processes is carried out in pre-mixing burner 6 brick chambeies simultaneously, and the velocity of flue gas height of burner 6 outlets can reach 130m/s, can stir inner flue gas of the stove, makes the interior temperature of stove even; Therefore the steel wire in burner hearth is heated evenly, and the wire quality after the processing is stable, and the intensity scattered error is little, less than 30Mpa.But such direct-fired heater can not adopt and add warm air and carry out premix, otherwise security incident can occur, thereby can not effectively utilize the useless cigarette heat of smoke-uptake, and the funnel temperature height reaches 600～700 ℃, the energy consumption height, and thermal treatment steel wire per ton needs 42～45m approximately
3Sweet natural gas.
Summary of the invention
There are relative merits in the applicant separately at two kinds of main types of above-mentioned existing steel wire heat processing naked-flame furnace, can't better satisfy needs of production, a kind of steel wire heat processing naked-flame furnace rational in infrastructure is provided, thus can energy efficient, guarantee the thermal treatment quality of steel wire simultaneously.
The technical solution adopted in the present invention is as follows:
A kind of steel wire heat processing naked-flame furnace, the front portion of heating zone is set to the hot air type structure, is provided with the hot blast burner in the burner hearth both sides, and the burner input terminus is provided with blast main and gas line; The rear portion of heating zone is set to premixed structure, is provided with the pre-mixing burner in the burner hearth both sides, and blast main and gas line are connected to premixer earlier, connects the pre-mixing burner by mixture pipe again; In heating zone the smoke-uptake of one is set, inside is provided with interchanger.
The anterior hot air type scantling length of steel wire heat processing naked-flame furnace accounts for 1/4～1/2 of whole heading-length; The premixed scantling length in rear portion accounts for 1/2～3/4 of whole heading-length.
The present invention has effectively utilized wire temperature 700 ℃ of characteristics that following oxidation rate is low, adopts hot blast heating and premix heating blended type of heating, has not only effectively utilized the energy, and the thermal treatment of steel wire per ton needs 32～35m approximately
3Sweet natural gas, reduce about 20% than premixed heat processing naked-flame furnace; And steel wire amount of oxidation in high-temperature heating process is little, is not more than 0.3%, and guarantees not decarburization of steel wire, and the wire quality after the thermal treatment is stable, and the intensity scattered error is little, is not more than 30Mpa.
Description of drawings
Fig. 1 is a front view of the present invention;
Fig. 2 is the sectional view in A-A cross section among Fig. 1;
Fig. 3 is the sectional view in B-B cross section among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
As shown in Figure 1, the front portion of heating zone of the present invention is set to the hot air type structure, its length accounts for about 1/3 of whole heading-length, its rear portion is set to premixed structure, its length accounts for about 2/3 of whole heading-length, and above-mentioned length ratio can be adjusted according to the specification and the turnout of actual heat treatment product.As shown in Figure 2, burner hearth 8 both sides of forward hot air type structure are provided with hot blast burner 4, by blast main 2, gas line 3 input airs and combustion gas, mix in hot blast burner 4 and burning, to the steel wire 1 of burner hearth 8 internal spray flame heating streamlines conveying.As shown in Figure 3, burner hearth 8 both sides of the premixed structure at rear portion are provided with pre-mixing burner 6, air and combustion gas are delivered to premixer 5 earlier by blast main 2 and gas line 3 respectively and carry out premix, are delivered to pre-mixing burner 6 by mixture pipe 7 then and burn, and steel wire 1 is heated.Whole heating zone is provided with the smoke-uptake of one, can be by interchanger with air in the blast main 2 of the anterior hot air type structure of heat preheating of smoke-uptake flue gas.
Because when steel wire heated in the anterior heating zone of heat processing naked-flame furnace, wire temperature was not high, less than 700 ℃, the steel wire oxidation rate is low under this temperature, so this section oven cavity atmosphere is not obvious to the oxygenizement of steel wire; But the heat that needs in this section heating zone is very big, accounts for 50% of total heat requirement, so the present invention can effectively reduce fuel consumption at this section employing hot blast combustion system.And steel wire temperature height when the heating back segment, reach 800～900 ℃, oxidation easily takes place in steel wire, needs strict control oven cavity atmosphere this moment, makes the interior temperature of burner hearth even, the present invention adopts the premix type of heating in this section, premixer can accurately be controlled the ratio of combustion gas and air, thereby can accurately control oven cavity atmosphere, therefore can make steel wire amount of oxidation in high-temperature heating process littler, be not more than 0.3%, and guarantee not decarburization of steel wire; The inner flow of flue gas of the burner hearth of the mode of premixed combustion simultaneously is violent, and steel wire is heated evenly, and the wire quality after the thermal treatment is stable, and the intensity scattered error is little, is not more than 30Mpa.The present invention is provided with the smoke-uptake of one to whole heating zone, can be by interchanger with the air in the anterior hot air type blast main 2 of the heat preheating of smoke-uptake flue gas, so funnel temperature is low, about 350～450 ℃, the energy utilization rate height, the thermal treatment of steel wire per ton needs 32～35m approximately
3Sweet natural gas, reduce about 20% than premixed heat processing naked-flame furnace stove.
More than describing is explanation of the invention, not that institute of the present invention restricted portion is referring to claim, under the situation of spirit of the present invention to the qualification of invention, the present invention can do any type of modification, and for example the present invention also can be used for the thermal treatment process of steel band.
Claims (2)
1. steel wire heat processing naked-flame furnace, it is characterized in that: the front portion of heating zone is set to the hot air type structure, is provided with the hot blast burner in the burner hearth both sides, and the burner input terminus is provided with blast main and gas line; The rear portion of heating zone is set to premixed structure, is provided with the pre-mixing burner in the burner hearth both sides, and blast main and gas line are connected to premixer earlier, connects the pre-mixing burner by mixture pipe again; In heating zone the smoke-uptake of one is set, inside is provided with interchanger.
2. steel wire heat processing naked-flame furnace as claimed in claim 1 is characterized in that: described anterior hot air type scantling length accounts for 1/4～1/2 of whole heading-length; The premixed scantling length in rear portion accounts for 1/2～3/4 of whole heading-length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201682397U CN201660683U (en) | 2010-03-23 | 2010-03-23 | Steel wire heat treatment open-fire furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201682397U CN201660683U (en) | 2010-03-23 | 2010-03-23 | Steel wire heat treatment open-fire furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201660683U true CN201660683U (en) | 2010-12-01 |
Family
ID=43231098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201682397U Expired - Lifetime CN201660683U (en) | 2010-03-23 | 2010-03-23 | Steel wire heat treatment open-fire furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201660683U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812582A (en) * | 2010-03-23 | 2010-08-25 | 无锡市鑫润工业炉有限公司 | Steel wire heat processing naked-flame furnace |
| CN105886752A (en) * | 2016-05-31 | 2016-08-24 | 无锡市鑫沅工业窑炉有限公司 | Thermal treatment furnace for steel wires |
| CN111621635A (en) * | 2020-04-16 | 2020-09-04 | 江苏亚盛金属制品有限公司 | Production method of non-loose steel wire rope |
-
2010
- 2010-03-23 CN CN2010201682397U patent/CN201660683U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812582A (en) * | 2010-03-23 | 2010-08-25 | 无锡市鑫润工业炉有限公司 | Steel wire heat processing naked-flame furnace |
| CN101812582B (en) * | 2010-03-23 | 2011-07-20 | 无锡市鑫润工业炉有限公司 | Steel wire heat processing naked-flame furnace |
| CN105886752A (en) * | 2016-05-31 | 2016-08-24 | 无锡市鑫沅工业窑炉有限公司 | Thermal treatment furnace for steel wires |
| CN111621635A (en) * | 2020-04-16 | 2020-09-04 | 江苏亚盛金属制品有限公司 | Production method of non-loose steel wire rope |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204063038U (en) | Low NO xflue gas is from return flow burner | |
| CN104235849A (en) | Staged oxygen-enriched flameless combustion gas burner and control method thereof | |
| CN101812582B (en) | Steel wire heat processing naked-flame furnace | |
| CN204084374U (en) | Oxygen-enriched flameless gas burner | |
| CN101776277B (en) | Method and device for improving heat efficiency of combustion furnace by oxygen-rich partial oxygen-enriched jet flow combustion supporting | |
| CN102875012B (en) | Energy-saving type improved method for heating apparatus of disc automatic pipebender | |
| CN108954799A (en) | Combustion heat-exchange device, burnt gas wall hanging furnace and gas heater | |
| CN201660683U (en) | Steel wire heat treatment open-fire furnace | |
| CN105135430B (en) | A kind of low nitrogen solid fuel oxygen-enriched burner of steady flame | |
| CN209541154U (en) | A kind of low temperature hot-blast stove for low calorie fuels | |
| CN203703982U (en) | Combustor and combustion furnace | |
| CN203625447U (en) | Furnace rear alloy roasting system of steelmaking converter | |
| CN205939147U (en) | Steady flame formula combustor | |
| CN208671326U (en) | Combustion heat-exchange device, burnt gas wall hanging furnace and gas heater | |
| CN204084375U (en) | Staged Oxygen-enriched Flameless Combustion Gas Burner | |
| CN201964395U (en) | Multi-burner heating furnace | |
| CN206234819U (en) | A kind of heating furnace spout device that can realize secondary mixed combustion | |
| CN202808565U (en) | Combustor for glass kiln roasting kiln | |
| CN203703972U (en) | Burner and combustion furnace | |
| CN105886752A (en) | Thermal treatment furnace for steel wires | |
| CN208635101U (en) | A kind of double-cyclone heat storage flat flame burner | |
| CN201521956U (en) | Multiheaded premix burner of reformer four-in-one heating furnace | |
| CN205447725U (en) | Cubic air distribution combustion chamber | |
| CN204006001U (en) | A kind of novel combustion flame heater | |
| CN203855601U (en) | Premixing turbulent burner of top combustion stove |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101201 Effective date of abandoning: 20110720 |