CN202401110U - Multifunctional continuous thermal treatment furnace - Google Patents
Multifunctional continuous thermal treatment furnace Download PDFInfo
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- CN202401110U CN202401110U CN2011205539335U CN201120553933U CN202401110U CN 202401110 U CN202401110 U CN 202401110U CN 2011205539335 U CN2011205539335 U CN 2011205539335U CN 201120553933 U CN201120553933 U CN 201120553933U CN 202401110 U CN202401110 U CN 202401110U
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Abstract
The utility model relates to a multifunctional continuous thermal treatment furnace. The multifunctional continuous thermal treatment furnace comprises a soaking pit furnace section, a plurality of secondary-air high-speed temperature-control burners, a heating furnace section, a plurality of high speed burners, a combustion-supporting air pipeline and a coal gas pipeline, wherein the secondary-air high-speed temperature-control burners are arranged on end walls of the soaking pit furnace section of the thermal treatment furnace; the high speed burners are arranged on end walls of the heating furnace section of the thermal treatment furnace; the combustion-supporting air pipeline, the coal gas pipeline and corresponding switching control valves are arranged in front of the secondary-air high-speed temperature-control burners and the high speed burners; and a secondary air pipeline and secondary air switching control valves are arranged in front of the secondary-air high-speed temperature-control burners. The multifunctional continuous thermal treatment furnace is characterized in that heat is supplied to the soaking pit furnace section by the secondary-air high-speed temperature-control burners, and heat is supplied to the heating furnace section by the high speed burners. The thermal treatment processes of normalizing, quenching, annealing and tempering can be implemented on the thermal treatment furnace; and the multifunctional continuous thermal treatment furnace has the characteristics that a floor area and investment are saved, the multifunctional continuous thermal treatment furnace is convenient to operate and high in furnace temperature uniformity, and the like.
Description
Technical field
The utility model belongs to the steel heat process field, relates to a kind of " stove four fire " multi-functional continuous heat treating furnace and the heat treating method that can realize normalizing, quenching, annealing, tempering heat treatment process demand.
Background technology
Steel heat is handled and is meant through several kinds of heat treatment processes such as normalizing, quenching, annealing, tempering, changes the tissue of steel, obtains different mechanical propertys, satisfies different request for utilizations.
At present, in steel heat process for producing workshops such as bar, steel pipes, be assurance high yield, high-quality, the thermal treatment of steel is that the continuous heat treating furnace that employing is carried through stepping mechanism or roller-way carries out the continuous heating of batch of steel and is incubated the back realization mostly.The wherein normalizing of steel, quenching heat treatment process require the steel completion of coming out of the stove at the high temperature of heat treatment furnace internal heating to 850～1100 ℃ and after being incubated; To annealing, the tempering heat treatment process of steel, then require with steel in heat treatment furnace internal heating to 400～800 ℃, low high temperature and be incubated after the completion of coming out of the stove.Because normalizing, the quenching heat treatment process of steel are heating and insulation in 850～1100 ℃ high-temperature burner hearth; And temperature uniformity requires to be controlled at ± and 5 ℃～± 10 ℃; Production plant generally is arranged on the high-temperature heat treatment stove that is called normalizing furnace or quenching furnance and accomplishes, and this normalizing furnace or quenching furnance configuration high-speed burner and corresponding automatic control technology realize steel heat, insulation and temperature uniformity adjusting; Annealing, tempering heat treatment for steel; Because steel are heating and insulation in 400～800 ℃ middle low temperature burner hearth; And temperature uniformity requires to be controlled at ± and 5 ℃～± 10 ℃; Production plant generally is arranged on the middle low-temperature heat treatment stove that is called lehre or tempering stove and accomplishes, and general configuration high-speed temperature-adjusting burner of this lehre or tempering stove and corresponding automatic control technology realize low-temperature heat in the steel, insulation and temperature uniformity adjusting.Because normalizing, the quenching heat treatment process of steel will be accomplished on different heat treatment furnaces respectively with annealing, tempering heat treatment; Need build different heat treatment furnaces respectively and satisfy processing requirement, thus production plant to take up an area of the space very big, and organization of production, logistics turnover are all very numerous and diverse; Investment also is very big; For steel heat handle wide in variety, technical process is complicated, batch more than, little production plant in batches, the organization of production difficulty is bigger, production cost is higher; If carry out annealing, the tempering heat treatment of steel at traditional high temperature normalizing stove or quenching furnance; In coldcondition temperature uniformity and steel thermal treatment quality down all be difficult to assurance, in cryogenic lehre or tempering stove then be difficult to accomplish the heat processing requirement of normalizing, quenching heat treatment.
Summary of the invention
The purpose of the utility model provides a kind of " stove four fire " multi-functional continuous heat treating furnace and heat treating method; On this heat treatment furnace, can accomplish several kinds of steel heat treatment process such as normalizing, quenching, annealing, tempering respectively, this heat treatment furnace saving occupation of land and investment, easy and simple to handle and can satisfy high temperature and low temperature heat-treatment process requirement fully through different operation.
For realizing above-mentioned purpose, the utility model has adopted following technical scheme:
A kind of multi-functional continuous heat treating furnace comprises soaking pit section, a plurality of secondary air high velocity temperature adjusting burner, process furnace section, a plurality of high combustion rate burner, combustion air pipeline, gas line; The secondary air high velocity temperature adjusting burner is installed on the headwall of heat treatment furnace soaking pit section, and high combustion rate burner is installed on the headwall of heat treatment furnace process furnace section; All dispose combustion air pipeline and gas line before secondary air high velocity temperature adjusting burner and the high combustion rate burner; Each pipeline all disposes corresponding valve; It is characterized in that: also dispose secondary air pipeline and secondary air open and close control valve before the secondary air high velocity temperature adjusting burner; The process furnace section adopts high combustion rate burner to carry out heat supply, and the soaking pit section adopts the secondary air high velocity temperature adjusting burner to carry out heat supply.
Wherein, be provided with on the combustion air pipeline before the secondary air high velocity temperature adjusting burner the first coal gas open and close control valve is set on the first combustion air open and close control valve, the gas line.
Wherein, be provided with on the combustion air pipeline before the high combustion rate burner the second coal gas open and close control valve is set on the second combustion air open and close control valve, the gas line.
Fire box temperature uniformity requirement when rapid and uniform intensification during for the heating of assurance steel and insulation; The secondary air high velocity temperature adjusting burner of soaking pit section, the high combustion rate burner of process furnace section divide into groups to carry out open and close controlling respectively; By the air open and close control valve on the combustion air pipeline before each burner of supporting automatic controlling system, the switching of coal gas open and close control valve on the gas line; The working order of control burner and to the heat supply of burner hearth; Realize the regulation and control of fire box temperature, the supply through the open and close controlling secondary air of secondary air open and close control valve on the secondary air channel road before the control secondary air high velocity temperature adjusting burner with stop.
When using above-mentioned multi-functional continuous heat treating furnace to carry out normalizing, quenching, annealing or tempering heat treatment: multi-functional continuous heat treating furnace is when carrying out steel normalizing or quenching heat treatment; The high combustion rate burner of process furnace section is supplied with combustion air and the burning of coal gas tissue respectively through combustion air pipeline and gas line, and realizes the heat supply and the temperature uniformity regulation and control of process furnace section through the open and close controlling to the second combustion air open and close control valve before the burner and the second coal gas open and close control valve; The secondary air high velocity temperature adjusting burner of soaking pit section uses as high combustion rate burner; Secondary air open and close control valve before the secondary air high velocity temperature adjusting burner is closed and is not supplied with this burner secondary air; Supply with combustion air and the burning of coal gas tissue respectively through combustion air pipeline and gas line; And through open and close controlling to the first combustion air open and close control valve and the first coal gas open and close control valve before this burner; Realize the heat supply and temperature uniformity regulation and control of soaking pit section, assurance soaking pit section burner hearth reaches 850～1100 ℃ high temperature and temperature uniformity and meets the requirements.
When this continuous heat treating furnace carries out steel annealing or tempering heat treatment; The high combustion rate burner of process furnace section is supplied with combustion air and the burning of coal gas tissue respectively through combustion air pipeline and gas line, and accomplishes heat supply and the furnace temperature regulating of realizing the process furnace section through the open and close controlling to the second combustion air open and close control valve before the burner and the second coal gas open and close control valve; The secondary air high velocity temperature adjusting burner of soaking pit section is supplied with combustion air and the burning of coal gas tissue respectively through combustion air pipeline and gas line; And through open and close controlling to the first combustion air open and close control valve and the first coal gas open and close control valve before the burner; Realize the heat supply and the furnace temperature regulating of soaking pit section; Secondary air open and close controlling opening of valves before the secondary air high velocity temperature adjusting burner is supplied with this burner secondary air; Blending cooling down high-temperature flue gas prevents the appearance of the preceding combustion zone of burner localized hyperthermia's point to reduce flame temperature, the homogeneity of burner hearth furnace temperature when guaranteeing the insulation of soaking pit Duan Zaizhong low-temperature condition.
The beneficial effect of the utility model is:
1) on a kind of continuous heat treating furnace, can carry out heat and guarantee temperature uniformity, realize the normalizing or the quenching heat treatment of steel, also can realize the middle low-temperature heat of steel and guarantee the homogeneity of furnace temperature, realize the annealing or the tempering heat treatment of steel.
2) structure and easy and simple to handle is easy to realize four kinds of different thermal treatment process, takes up an area of and reduced investment.
Description of drawings:
Below in conjunction with accompanying drawing and embodiment the utility model is described.
Fig. 1 is the structural representation of the described multi-functional continuous heat treating furnace of the utility model.
Among the figure: 1-soaking pit section, 2-secondary air high velocity temperature adjusting burner, 3-secondary air pipeline; 4-secondary air open and close control valve, the 5-first combustion air open and close control valve, the 6-first coal gas open and close control valve; 7-process furnace section, 8-high combustion rate burner, the 9-second coal gas open and close control valve; The 10-second combustion air open and close control valve, 11-gas line, 12-combustion air pipeline
Embodiment:
As shown in Figure 1, according to the multi-functional continuous heat treating furnace that can realize " stove four fire " that the utility model is implemented, it comprises soaking pit section 1, secondary air high velocity temperature adjusting burner 2, process furnace section 7, high combustion rate burner 8, combustion air pipeline 12, gas line 11; Secondary air high velocity temperature adjusting burner 2 is installed on the headwall of soaking pit section 1, disposes the combustion air pipeline 12 and the first combustion air open and close control valve 5, gas line 11 and the first coal gas open and close control valve 6, secondary air pipeline 3 and secondary air open and close control valve 4 before the secondary air high velocity temperature adjusting burner 2; High combustion rate burner 8 is installed on the headwall of process furnace section 7, disposes combustion air pipeline 12 and the second combustion air open and close control valve 10, gas line 11 and the second coal gas open and close control valve 9 before the high combustion rate burner 8.
Fire box temperature uniformity requirement when rapid and uniform intensification during for the heating of assurance steel and insulation; The secondary air high velocity temperature adjusting burner 2 of soaking pit section 1, the high combustion rate burner 8 of process furnace section 7 open and close controlling of dividing into groups to carry out respectively; By the air open and close control valve on the combustion air pipeline before the supporting automatic controlling system burner, on the gas line the coal gas open and close control valve the open and close controlling burner working order and to the heat supply of burner hearth; Realize the regulation and control of fire box temperature, the supply through the open and close controlling secondary air of secondary air open and close control valve 4 on the secondary air channel road 3 before the control secondary air high velocity temperature adjusting burner with stop.
Use above-mentioned multi-functional continuous heat treating furnace to carry out normalizing, quenching, annealing or tempered heat treatment operation; It is characterized in that: multi-functional continuous heat treating furnace is when carrying out steel normalizing or quenching heat treatment; The high combustion rate burner 8 of process furnace section 7 is supplied with combustion air and the burning of coal gas tissue respectively through combustion air pipeline 12 and gas line 11, and realizes the heat supply and the temperature uniformity regulation and control of process furnace section 7 through the open and close controlling to the high combustion rate burner 8 preceding second combustion air open and close control valves 10 and the second coal gas open and close control valve 9; The secondary air high velocity temperature adjusting burner 2 of soaking pit section 1 uses as high combustion rate burner; Secondary air open and close control valve 4 before the secondary air high velocity temperature adjusting burner 2 is closed and is not supplied with this burner secondary air; Supply with combustion air and the burning of coal gas tissue respectively through combustion air pipeline 12 and gas line 11; And through open and close controlling to the first combustion air open and close control valve 5 and the first coal gas open and close control valve 6 before this burner; Realize the heat supply and temperature uniformity regulation and control of soaking pit section 1, assurance soaking pit section 1 burner hearth reaches 850～1100 ℃ high temperature and temperature uniformity and meets the requirements.
When this continuous heat treating furnace carries out steel annealing or tempering heat treatment; The high combustion rate burner 8 of process furnace section 7 is supplied with combustion air and the burning of coal gas tissue respectively through combustion air pipeline 12 and gas line 11, and accomplishes heat supply and the furnace temperature regulating of realizing process furnace section 7 through the open and close controlling to the second combustion air open and close control valve 10 before the burner and the second coal gas open and close control valve 9; The secondary air high velocity temperature adjusting burner 2 of soaking pit section 1 is supplied with combustion air and the burning of coal gas tissue respectively through combustion air pipeline 12 and gas line 11; And through open and close controlling to the first combustion air open and close control valve 5 and the first coal gas open and close control valve 6 before the burner; Realize the heat supply and the furnace temperature regulating of soaking pit section 1; Secondary air open and close control valve 4 before the secondary air high velocity temperature adjusting burner 2 is opened and is supplied with the secondary air that this burner cooling down high-temperature flue gas is used; Blending cooling down high-temperature flue gas prevents the appearance of the preceding combustion zone of burner localized hyperthermia's point to reduce flame temperature, guarantees the homogeneity of soaking pit section 1 burner hearth furnace temperature when middle low-temperature condition is incubated.
The above disclosed preferred embodiment that is merely the utility model can not limit the interest field of the utility model certainly with this, so according to the equivalence variation that the utility model claim is done, still belong to the protection domain of the utility model.
Claims (4)
1. a multi-functional continuous heat treating furnace comprises soaking pit section, a plurality of secondary air high velocity temperature adjusting burner, process furnace section, a plurality of high combustion rate burner, combustion air pipeline, gas line; The secondary air high velocity temperature adjusting burner is installed on the headwall of hot soaking pit section, and high combustion rate burner is installed on the headwall of process furnace section; All dispose combustion air pipeline and gas line before secondary air high velocity temperature adjusting burner and the high combustion rate burner; Each pipeline all disposes corresponding open and close control valve; It is characterized in that: also dispose secondary air pipeline and secondary air open and close control valve before the secondary air high velocity temperature adjusting burner; The process furnace section adopts high combustion rate burner to carry out heat supply, and the soaking pit section adopts the secondary air high velocity temperature adjusting burner to carry out heat supply.
2. heat treatment furnace according to claim 1 is characterized in that being provided with on the combustion air pipeline before the secondary air high velocity temperature adjusting burner the first coal gas open and close control valve is set on the first combustion air open and close control valve, the gas line.
3. heat treatment furnace according to claim 1 and 2 is characterized in that being provided with on the combustion air pipeline before the high combustion rate burner the second coal gas open and close control valve is set on the second combustion air open and close control valve, the gas line.
4. heat treatment furnace according to claim 3; It is characterized in that the secondary air high velocity temperature adjusting burner of soaking pit section, the high combustion rate burner of process furnace section divide into groups to carry out open and close controlling respectively; By the air open and close control valve on the combustion air pipeline before each burner of automatic controlling system, the switching of coal gas open and close control valve on the gas line; The working order of control burner and to the heat supply of burner hearth; Realize the regulation and control of fire box temperature, the supply through the open and close controlling secondary air of secondary air open and close control valve on the secondary air channel road before the control secondary air high velocity temperature adjusting burner with stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205539335U CN202401110U (en) | 2011-12-27 | 2011-12-27 | Multifunctional continuous thermal treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205539335U CN202401110U (en) | 2011-12-27 | 2011-12-27 | Multifunctional continuous thermal treatment furnace |
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| CN202401110U true CN202401110U (en) | 2012-08-29 |
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| CN2011205539335U Expired - Lifetime CN202401110U (en) | 2011-12-27 | 2011-12-27 | Multifunctional continuous thermal treatment furnace |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492827A (en) * | 2011-12-27 | 2012-06-13 | 中冶南方(武汉)威仕工业炉有限公司 | Multifunctional continuous heat treatment furnace and heat treatment method |
| CN105268760A (en) * | 2015-11-09 | 2016-01-27 | 安吉县鹏大钢管有限公司 | Steel pipe machining system |
| CN110607429A (en) * | 2019-09-27 | 2019-12-24 | 中冶南方（武汉）热工有限公司 | Roller hearth type plate continuous furnace and tempering method thereof |
| CN114150132A (en) * | 2021-12-08 | 2022-03-08 | 中冶南方（武汉）热工有限公司 | Multifunctional furnace section of continuous roller hearth annealing furnace and working method thereof |
-
2011
- 2011-12-27 CN CN2011205539335U patent/CN202401110U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492827A (en) * | 2011-12-27 | 2012-06-13 | 中冶南方(武汉)威仕工业炉有限公司 | Multifunctional continuous heat treatment furnace and heat treatment method |
| CN102492827B (en) * | 2011-12-27 | 2013-07-17 | 中冶南方(武汉)威仕工业炉有限公司 | Multifunctional continuous heat treatment furnace and heat treatment method |
| CN105268760A (en) * | 2015-11-09 | 2016-01-27 | 安吉县鹏大钢管有限公司 | Steel pipe machining system |
| CN105268760B (en) * | 2015-11-09 | 2017-03-29 | 安吉县鹏大钢管有限公司 | A kind of steel pipe system of processing |
| CN110607429A (en) * | 2019-09-27 | 2019-12-24 | 中冶南方（武汉）热工有限公司 | Roller hearth type plate continuous furnace and tempering method thereof |
| CN110607429B (en) * | 2019-09-27 | 2021-03-16 | 中冶南方（武汉）热工有限公司 | Roller hearth type plate continuous furnace and tempering method thereof |
| CN114150132A (en) * | 2021-12-08 | 2022-03-08 | 中冶南方（武汉）热工有限公司 | Multifunctional furnace section of continuous roller hearth annealing furnace and working method thereof |
| CN114150132B (en) * | 2021-12-08 | 2023-12-26 | 中冶南方（武汉）热工有限公司 | Multifunctional furnace section of continuous roller hearth annealing furnace and working method thereof |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120829 Effective date of abandoning: 20130717 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120829 Effective date of abandoning: 20130717 |
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| RGAV | Abandon patent right to avoid regrant |