CN107299216A - A kind of heater for rolling steel - Google Patents
A kind of heater for rolling steel Download PDFInfo
- Publication number
- CN107299216A CN107299216A CN201710473971.1A CN201710473971A CN107299216A CN 107299216 A CN107299216 A CN 107299216A CN 201710473971 A CN201710473971 A CN 201710473971A CN 107299216 A CN107299216 A CN 107299216A
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- CN
- China
- Prior art keywords
- heating
- furnace body
- heating furnace
- heat transfer
- heater
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 39
- 239000010959 steel Substances 0.000 title claims abstract description 39
- 238000005096 rolling process Methods 0.000 title claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 102
- 238000009413 insulation Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000002791 soaking Methods 0.000 claims description 8
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003801 milling Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/70—Furnaces for ingots, i.e. soaking pits
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Tunnel Furnaces (AREA)
Abstract
The invention discloses a kind of heater for rolling steel, including heating furnace body, the inside of the heating furnace body is installed with thermal insulation board, and heating furnace body is from left to right divided into preheating chamber successively by thermal insulation board, heating chamber and equal hot cell, the both sides of the heating furnace body and the upper end of thermal insulation board are mounted on live-roller, the preheating chamber, the inwall side in heating chamber and equal hot cell is inlaid with thermocouple, the inner bottom of the heating chamber is inlaid with heating tube, the left side inner bottom of the heat transfer conduit is installed with steam turbine, the rotating shaft of the steam turbine is connected with generator by sealed bearings through heat transfer conduit, and the left-hand face coiling of heat transfer conduit has heat exchanger tube, the input of the heat exchanger tube is fixedly connected with circulating pump.The inventive structure designs advantages of simple, and easy to operate, safety and stability, energy-conserving and environment-protective, heating effect is good, be heated with, it is applied widely, be conducive to popularizing.
Description
Technical field
The invention belongs to Rolling production technical field, and in particular to a kind of heater for rolling steel.
Background technology
In the prior art, the burner hearth of heater for rolling steel includes：Preheating section, bringing-up section and soaking zone.Feed end furnace temperature is relatively low
For preheating section, its role is to utilize furnace gas heat, steel billet is preheated, and steel billet at the uniform velocity rises in heating process；Bringing-up section
For main heat supply section, furnace gas temperature is higher, in favor of realizing quick heating；Soaking zone is located at discharge end, it is ensured that material base of coming out of the stove
Bulk temperature is uniform.Due to steel billet, heat effect is different in heating furnace, thus to the temperature requirement of different phase in heating furnace
Different, this, which is resulted in, needs multigroup heating arrangements while being operated the stability that just can guarantee that steel rolling heating, so not only
Manufacturing cost is increased, while energy resource consumption is than larger, and heating furnace of the prior art is in preheating section, by furnace fuel
The flue gas heat of burning is preheated to steel billet, and the section is based on convection heat transfer' heat-transfer by convection, supplemented by radiant heat transfer, and flue-gas temperature typically exists
800 DEG C or so.Bringing-up section is main heat supply section, improves fire box temperature and reinforcing heating is carried out to steel billet, this section of furnace temperature typically exists
1200 DEG C or so, mainly steel billet is heated with radiant heat transfer, due to carrying out reinforcing heating, steel billet hull-skin temperature to steel billet
The requirement of rolling is reached, still, the temperature of inside steel billet forms " hard-core " far below surface temperature, on the cross section of steel billet
Form section temperature poor.The temperature of rolling steel billet typically requires that billet surface temperature is generally 1200~1250 DEG C or so, section
Temperature difference≤30 DEG C, steel billet is met rolling requirements must heat steel billet so that section temperature is uniform and reaches section temperature
Difference≤30 DEG C, the effect of soaking zone is exactly that to heat steel billet poor to reduce the section temperature of steel billet, and the fire box temperature of soaking zone is general
At 1280 DEG C or so.As milling train is improved, rolling power increase causes former heating furnace heating efficiency to meet milling train after improvement
The situation of productivity requirement.New heating furnace is rebuild, then invests too big, can not typically implement.If but continuing to enter using former heating furnace
Row production, heating furnace blank heating is uneven, while blank center portion fails to grill thoroughly, then milling train heating steel billet can often occurs and treat temperature
Stop rolling, influence production.It is unfavorable for widely popularizing.
The content of the invention
The invention aims to solve shortcoming present in prior art, and a kind of heater for rolling steel proposed.
To achieve the above object, present invention employs following technical scheme：
A kind of heater for rolling steel, including heating furnace body, the inside of the heating furnace body are installed with thermal insulation board, and
Heating furnace body is from left to right divided into preheating chamber, heating chamber and equal hot cell, the both sides of the heating furnace body by thermal insulation board successively
Live-roller is mounted on the upper end of thermal insulation board, the inwall side of the preheating chamber, heating chamber and equal hot cell is inlaid with thermoelectricity
Even, the inner bottom of the heating chamber is inlaid with heating tube, and the top in the heating chamber and equal hot cell is solid by heat transfer conduit
Fixed connection, the left side inner bottom of the heat transfer conduit is installed with steam turbine, and the rotating shaft of the steam turbine passes through sealing
Bearing is connected with generator through heat transfer conduit, and the left-hand face coiling of heat transfer conduit has heat exchanger tube, described to change
The input of heat pipe is fixedly connected with circulating pump, and the output end of the heat exchanger tube is stretched into preheating chamber through heating furnace body, institute
The positive bottom for stating heating furnace body is provided with the water inlet pipe connected respectively with preheating chamber, heating chamber and equal hot cell.
It is preferred that, four groups of supporting legs with yielding rubber pad are symmetrically installed with the bottom corners of the heating furnace body, and
The surface of heating furnace body has sprayed epoxy resin etch resistant layer and fiberglass insulation.
It is preferred that, the inside of the preheating chamber, heating chamber and equal hot cell is respectively arranged with warm water, and the positive position of heating furnace body
Window with a scale is equipped with the outside of preheating chamber, heating chamber and equal hot cell.
It is preferred that, the heat transfer conduit be U-shaped, and heat transfer conduit left end bottom air inlet just to steam turbine
Side.
It is preferred that, the live-roller is provided with four groups in same level, and live-roller includes surface and carries anti-skid bulge
Roller up and down composition.
It is preferred that, the positive middle part of the heating furnace body is inlaid with PLC control electronic boxs, and PLC controls electronic box
Surface upper end is inlaid with LED display.
It is preferred that, the thermocouple, heating tube, generator and circulating pump control electronic box electrically to connect by wire with PLC
Connect.
It is preferred that, the end of the water inlet pipe is fixedly connected with external water system, and water inlet pipe inside be provided with
The magnetic valve that PLC control electronic boxs are electrically connected with.
The technique effect and advantage of the present invention：A kind of heater for rolling steel proposed by the present invention, compared with prior art, this hair
It is bright to ensure the heated uniformity of steel rolling by heating steam heating in furnace body, because heat ratio is more uniform after water heating,
The water heating-up temperature retention time is long simultaneously, and the vapor that heat transfer conduit can produce heating chamber is delivered to equal hot cell and ensures equal
The stable equilibrium of heat in hot cell, while the vapor that heating chamber is produced is rotated by steam turbine meeting pushing turbine, so that band
Dynamic generator operation is that PLC control electronic boxs persistently charge, it is possible to achieve the effect of energy-conserving and environment-protective, and heat transfer conduit surface
Heat exchanger tube can be in the presence of circulating pump being preheated in a part of heat transfer to preheating chamber for steel rolling, and thermocouple can be with
Sensing preheating chamber, the temperature in heating chamber and soaking room are passed to after PLC control electronic box Treatment Analysis on its surface in real time
Shown on LED display, in order to the control to heating tube so as to realize to preheating chamber, heating chamber and soaking indoor temperature
Regulation, inventive structure design advantages of simple, easy to operate, safety and stability, energy-conserving and environment-protective, heating effect is good, be heated with,
It is applied widely, be conducive to popularizing.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is sectional view of the invention.
In figure：1 heating furnace body, 2 thermal insulation boards, 3 preheating chambers, 4 heating chambers, 5 equal hot cells, 6 thermocouples, 7 heating tubes, 8 are passed
Dynamic roller, 9 heat transfer conduits, 10 steam turbines, 11 generators, 12 heat exchanger tubes, 13 circulating pumps, 14PLC controls electronic box, 15 water inlet pipes.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Herein
Described specific embodiment only to explain the present invention, is not intended to limit the present invention.Based on the embodiment in the present invention,
The every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, belongs to this hair
The scope of bright protection.
The invention provides a kind of heater for rolling steel as shown in Figure 1-2, including heating furnace body 1, the heating furnace sheet
The inside of body 1 is installed with thermal insulation board 2, and heating furnace body 1 is from left to right divided into preheating chamber 3, heating by thermal insulation board 2 successively
Room 4 and equal hot cell 5, the both sides of the heating furnace body 1 and the upper end of thermal insulation board 2 are mounted on live-roller 8, the preheating chamber 3,
The inwall side in heating chamber 4 and equal hot cell 5 is inlaid with thermocouple 6, and the inner bottom of the heating chamber 4 is inlaid with heating tube 7,
The heating chamber 4 is fixedly connected with the top in equal hot cell 5 by heat transfer conduit 9, the left side inner bottom of the heat transfer conduit 9
End is installed with steam turbine 10, and the rotating shaft of the steam turbine 10 is connected with by sealed bearings through heat transfer conduit 9
Generator 11, and the left-hand face coiling of heat transfer conduit 9 has heat exchanger tube 12, the input of the heat exchanger tube 12 is fixedly connected with
Circulating pump 13, the output end of the heat exchanger tube 12 is stretched into preheating chamber 3 through heating furnace body 1, and the heating furnace body 1 is just
Face bottom is provided with the water inlet pipe 15 connected respectively with preheating chamber 3, heating chamber 4 and equal hot cell 5.
Further, four groups of supporting legs with yielding rubber pad are symmetrically installed with the bottom corners of the heating furnace body 1,
And the surface of heating furnace body 1 has sprayed epoxy resin etch resistant layer and fiberglass insulation.
Further, the inside of the preheating chamber 3, heating chamber 4 and hot cell 5 is respectively arranged with warm water, and heats furnace body 1
Front is equipped with window with a scale positioned at the outside of preheating chamber 3, heating chamber 4 and hot cell 5.
Further, the heat transfer conduit 9 be U-shaped, and heat transfer conduit 9 left end bottom air inlet just to steamer
The side of machine 10.
Further, the live-roller 8 is provided with four groups in same level, and live-roller 8 includes surface with anti-skidding
The raised composition of roller up and down.
Further, the positive middle part of the heating furnace body 1 is inlaid with PLC control electronic boxs 14, and PLC control electricity
The surface upper end of case 14 is inlaid with LED display.
Further, the thermocouple 6, heating tube 7, generator 11 and circulating pump 13 control electricity by wire with PLC
Case 14 is electrically connected with.
Further, the end of the water inlet pipe 15 is fixedly connected with external water system, and the inside peace of water inlet pipe 15
Equipped with the magnetic valve that the electric connection of electronic box 14 is controlled with PLC.
A kind of heater for rolling steel proposed by the present invention, compared with prior art, the present invention is by heating steam in furnace body 1
Heating can ensure the heated uniformity of steel rolling, because heat ratio is more uniform after water heating, while the water heating-up temperature retention time
Long, the vapor produced in heating chamber 4 can be delivered to the stabilization that equal hot cell 5 ensures heat in equal hot cell 5 by heat transfer conduit 9
Equilibrium, while the vapor that heating chamber 4 is produced is rotated by the meeting pushing turbine 10 of steam turbine 10, so as to drive the work of generator 11
Persistently charged as PLC controls electronic box 14, it is possible to achieve the effect of energy-conserving and environment-protective, and the heat exchanger tube on the surface of heat transfer conduit 9
12 can in the presence of circulating pump 13 a part of heat transfer to being preheated for steel rolling in preheating chamber 3, thermocouple 6 can be with
Sensing preheating chamber 3, heating chamber 4 and the temperature in hot cell 5 are passed to after the PLC control Treatment Analysis of electronic box 14 in its table in real time
Shown on the LED display in face, in order to the control to heating tube 6 so as to realize to preheating chamber 3, heating chamber 4 and soaking
The regulation of temperature in room 5, inventive structure design advantages of simple, easy to operate, safety and stability, energy-conserving and environment-protective, heating effect is good,
It is heated with, it is applied widely, be conducive to popularizing.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic,
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in the present invention's
Within protection domain.
Claims (8)
1. a kind of heater for rolling steel, including heating furnace body (1), it is characterised in that：The inside of the heating furnace body (1) is fixed
Thermal insulation board (2) is installed, and heating furnace body (1) is from left to right divided into preheating chamber (3), heating chamber (4) successively by thermal insulation board (2)
With equal hot cell (5), the both sides of the heating furnace body (1) and the upper end of thermal insulation board (2) are mounted on live-roller (8), described pre-
The inwall side in hot cell (3), heating chamber (4) and equal hot cell (5) is inlaid with thermocouple (6), the inner bottom of the heating chamber (4)
End is inlaid with heating tube (7), and the heating chamber (4) is fixedly connected with the top of equal hot cell (5) by heat transfer conduit (9), institute
The left side inner bottom for stating heat transfer conduit (9) is installed with steam turbine (10), and the rotating shaft of the steam turbine (10) passes through close
Envelope bearing is connected with generator (11) through heat transfer conduit (9), and the left-hand face coiling of heat transfer conduit (9) is changed
Heat pipe (12), the input of the heat exchanger tube (12) is fixedly connected with circulating pump (13), and the output end of the heat exchanger tube (12) is passed through
Heating furnace body (1) is worn to stretch into preheating chamber (3), the positive bottom of the heating furnace body (1) provided with respectively with preheating chamber
(3), the water inlet pipe (15) that heating chamber (4) is connected with equal hot cell (5).
2. a kind of heater for rolling steel according to claim 1, it is characterised in that：Turn the bottom of the heating furnace body (1)
Four groups of supporting legs with yielding rubber pad are symmetrically installed with angle, and the surface of heating furnace body (1) has sprayed the anti-corruption of epoxy resin
Lose layer and fiberglass insulation.
3. a kind of heater for rolling steel according to claim 1, it is characterised in that：The preheating chamber (3), heating chamber (4) and
The inside in equal hot cell (5) is respectively arranged with warm water, and the front of heating furnace body (1) is located at preheating chamber (3), heating chamber (4) and soaking
Room is equipped with window with a scale on the outside of (5).
4. a kind of heater for rolling steel according to claim 1, it is characterised in that：The heat transfer conduit (9) is U-shaped,
And side of the left end bottom air inlet of heat transfer conduit (9) just to steam turbine (10).
5. a kind of heater for rolling steel according to claim 1, it is characterised in that：The live-roller (8) is in same level
Four groups are provided with, and live-roller (8) includes up and down roller of the surface with anti-skid bulge and constituted.
6. a kind of heater for rolling steel according to claim 1, it is characterised in that：In the front of the heating furnace body (1)
Between position be inlaid with PLC control electronic box (14), and PLC control electronic box (14) surface upper end be inlaid with LED display.
7. a kind of heater for rolling steel according to claim 1, it is characterised in that：The thermocouple (6), heating tube (7), hair
Motor (11) and circulating pump (13) control electronic box (14) to be electrically connected with by wire with PLC.
8. a kind of heater for rolling steel according to claim 1, it is characterised in that：The end of the water inlet pipe (15) with it is external
Water system is fixedly connected, and the inside of water inlet pipe (15) is provided with the magnetic valve for controlling electronic box (14) to be electrically connected with PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710473971.1A CN107299216B (en) | 2017-06-21 | 2017-06-21 | Steel rolling heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710473971.1A CN107299216B (en) | 2017-06-21 | 2017-06-21 | Steel rolling heating furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107299216A true CN107299216A (en) | 2017-10-27 |
| CN107299216B CN107299216B (en) | 2021-05-14 |
Family
ID=60135686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710473971.1A Expired - Fee Related CN107299216B (en) | 2017-06-21 | 2017-06-21 | Steel rolling heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107299216B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115046222A (en) * | 2022-05-26 | 2022-09-13 | 阿尔法（江苏）重工科技有限公司 | Furnace chamber for automatically adjusting PID (proportion integration differentiation) of gas in powder making system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202322947U (en) * | 2011-11-21 | 2012-07-11 | 重庆钢铁(集团)有限责任公司 | Steel rolling heating furnace |
| CN202558899U (en) * | 2012-05-15 | 2012-11-28 | 天津市金亿德特钢有限公司 | Novel billet heating furnace |
| CN103352115A (en) * | 2013-07-18 | 2013-10-16 | 上海宝钢节能技术有限公司 | Steel rolling heating furnace |
| CN203917794U (en) * | 2014-05-29 | 2014-11-05 | 宁波北仑一特特殊钢有限公司 | A kind of heating furnace |
| CN203976878U (en) * | 2014-08-20 | 2014-12-03 | 丁国民 | Electric heat treating furnace at the bottom of steel pipe energy-saving formula roller |
| CN104561515A (en) * | 2015-01-26 | 2015-04-29 | 河北星烁锯业股份有限公司 | Continuous plate blank heating furnace and heating method thereof |
| CN105132666A (en) * | 2014-05-30 | 2015-12-09 | 宝山钢铁股份有限公司 | Pickling-free continuous annealing furnace reducing gas recycle use system and use method thereof |
-
2017
- 2017-06-21 CN CN201710473971.1A patent/CN107299216B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202322947U (en) * | 2011-11-21 | 2012-07-11 | 重庆钢铁(集团)有限责任公司 | Steel rolling heating furnace |
| CN202558899U (en) * | 2012-05-15 | 2012-11-28 | 天津市金亿德特钢有限公司 | Novel billet heating furnace |
| CN103352115A (en) * | 2013-07-18 | 2013-10-16 | 上海宝钢节能技术有限公司 | Steel rolling heating furnace |
| CN203917794U (en) * | 2014-05-29 | 2014-11-05 | 宁波北仑一特特殊钢有限公司 | A kind of heating furnace |
| CN105132666A (en) * | 2014-05-30 | 2015-12-09 | 宝山钢铁股份有限公司 | Pickling-free continuous annealing furnace reducing gas recycle use system and use method thereof |
| CN203976878U (en) * | 2014-08-20 | 2014-12-03 | 丁国民 | Electric heat treating furnace at the bottom of steel pipe energy-saving formula roller |
| CN104561515A (en) * | 2015-01-26 | 2015-04-29 | 河北星烁锯业股份有限公司 | Continuous plate blank heating furnace and heating method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115046222A (en) * | 2022-05-26 | 2022-09-13 | 阿尔法（江苏）重工科技有限公司 | Furnace chamber for automatically adjusting PID (proportion integration differentiation) of gas in powder making system |
| CN115046222B (en) * | 2022-05-26 | 2024-01-12 | 阿尔法（江苏）重工科技有限公司 | Furnace chamber capable of automatically adjusting PID (proportion integration differentiation) by gas in pulverizing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107299216B (en) | 2021-05-14 |
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