CN102816902A - Smoke evacuation system of horizontal type annealing furnace - Google Patents
Smoke evacuation system of horizontal type annealing furnace Download PDFInfo
- Publication number
- CN102816902A CN102816902A CN2012103208750A CN201210320875A CN102816902A CN 102816902 A CN102816902 A CN 102816902A CN 2012103208750 A CN2012103208750 A CN 2012103208750A CN 201210320875 A CN201210320875 A CN 201210320875A CN 102816902 A CN102816902 A CN 102816902A
- Authority
- CN
- China
- Prior art keywords
- air
- smoke
- interchanger
- air dilution
- exhaust fan
- 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.)
- Pending
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention provides a smoke evacuation system of a horizontal type annealing furnace. The system comprises a smoke evacuation pipeline, a heat exchanger and a smoke evacuation fan, wherein the air inlet end C of the heat exchanger is connected with a combustion air fan; the air outlet end D is connected with the heating section of the annealing furnace through a combustion air delivery pipeline; a baffle used for controlling the furnace pressure is arranged on the smoke evacuation pipeline between the heat exchanger and the preheating section of the annealing furnace, and is connected with the smoke evacuation fan through a furnace pressure transmission controller; a first air diluting valve is arranged on the smoke evacuation pipeline between the baffle and the smoke inlet end A of the heat exchanger; and a combustion air evacuation valve is arranged on the combustion air delivery pipeline behind the air outlet end D of the heat exchanger, and is connected with a chimney. The system has the advantages that smoke temperature can be measured accurately; the heat exchanger can be protected well when an abnormal situation happens on a production line and the smoke temperature is high, and the furnace pressure can be accurately controlled simultaneously.
Description
Technical field
The present invention relates to hot rolled strip annealing and pickling production line, be specifically related to a kind of horizontal annealing furnace smoke discharging system.
Background technology
In hot rolled strip annealing and pickling production line; Lehre is the important component part of this production-line technique section, and in the fume exhaust system of lehre, interchanger is installed in the smoke discharging pipe; From gas fume after burning, reclaim heat, simultaneously required combustion air during preheated burning.In process of production, when production line generation abnormal conditions, process section is suddenly out of service or when running slowly; The flue-gas temperature meeting fast rise of annealing furnace smoke discharging system, if flue-gas temperature is too high in the fume exhaust system, interchanger is easily damaged; Simultaneously, fume exhaust system is also being controlled the furnace pressure of whole lehre, when furnace pressure can not accurately be controlled; Combustion gases composition in the stove is also restive, can cause the problems such as oxidated layer thickness increase of belt steel surface like this.
Summary of the invention
Technical problem to be solved by this invention is that the above-mentioned deficiency that the annealing furnace smoke discharging system exists provides a kind of casualty ratio of accidents low in the existing hot rolled strip annealing and pickling production line, the horizontal annealing furnace smoke discharging system that can prevent that interchanger is damaged.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
A kind of horizontal annealing furnace smoke discharging system; Comprise fume emission pipeline, interchanger and smoke exhaust fan; The fume emission pipeline is connected with the preheating section of lehre, and interchanger and smoke exhaust fan are located on the fume emission pipeline successively, and the fume emission pipeline of smoke exhaust fan exit end leads to chimney; Heat exchanger comprises smoke inlet end A and the smoke outlet B that communicates with the fume emission pipeline; And gas inlet end C that communicates with the combustion air transport pipe and air end D, the gas inlet end C of heat exchanger is connected with the combustion air blower fan, and air end D links to each other with the heating zone of lehre through the combustion air transport pipe; On the fume emission pipeline between interchanger and the lehre preheating section baffle plate that is used to control furnace pressure is installed; This baffle plate links to each other with smoke exhaust fan through the furnace pressure transfer control, and the heating zone and the preheating section of said lehre are equipped with pressometer, and said furnace pressure transfer control is connected with each pressometer; First air dilution valve is installed on the fume emission pipeline between baffle plate and the interchanger smoke inlet end A; Combustion air transport pipe behind the interchanger air end D is provided with the combustion air vent valves, and combustion air vent valves and chimney join.
In such scheme, second air dilution valve is installed on the fume emission pipeline between said interchanger smoke outlet B and the smoke exhaust fan.
In such scheme; First thermopair of the flue-gas temperature before the smoke inlet end A that is used to measure interchanger is installed on the fume emission pipeline between said interchanger and first air dilution valve; First thermopair is connected with first air dilution valve through the first temperature transfer control; Correspondence is connected with the first air dilution tunnel on first air dilution valve, and correspondence is equipped with first air dilution blower fan on the first air dilution tunnel.
In such scheme; Second thermopair of the flue-gas temperature after the smoke outlet B that is used to measure interchanger is installed on the fume emission pipeline between said interchanger and second air dilution valve, and second thermopair is connected with the combustion air vent valves through the second temperature transfer control.
In such scheme; Be equipped with between said second air dilution valve and the smoke exhaust fan and be used to measure the three thermocouple that gets into smoke exhaust fan flue-gas temperature before; Three thermocouple is connected through the dilution of second air before the 3rd temperature transfer control and smoke exhaust fan valve; Correspondence is connected with the second air dilution tunnel on second air dilution valve, and correspondence is equipped with second air dilution blower fan on the second air dilution tunnel.
Principle of work of the present invention is:
(1) baffle plate and smoke exhaust fan are used to control furnace pressure; Through the pressure of pressometer measurement heating zone burner hearth and preheating section burner hearth, get the MV of all observed values, signal is connected with the preceding baffle plate of interchanger through the furnace pressure transfer control; When furnace pressure during greater than set(ting)value; At first system can adjust baffle opening automatically, after baffle opening is transferred to maximum, can't satisfy setting pressure, heightens rotational speed of smoke extractor again.Otherwise fume emission pipeline pressure reduces rotational speed of smoke extractor earlier during less than set(ting)value, when smoke exhaust fan is transferred to minimum speed, can't satisfy setting pressure, reduces baffle opening again.
(2) first air dilution valve is used to protect interchanger; When first thermopair detects after the heat exchanger entrance flue-gas temperature reaches certain value; First air dilution valve is regulated aperture automatically according to the variation of flue-gas temperature, thereby regulates the air quantity that gets into flue through the first air dilution tunnel; When flue-gas temperature too high; First air dilution valve is adjusted to maximum opening still can not satisfy the permission entrance flue gas temperature of interchanger the time; First air dilution blower fan starts automatically; Strengthen air quantity high-temperature flue gas is diluted, reduce flue-gas temperature, prevent that interchanger from damaging owing to flue-gas temperature is too high.
(3) the combustion air vent valves is used to protect interchanger; When production line stopped or slowing down, interchanger can not bear too high temperature, for preventing such situation; Need to regulate the aperture of combustion air vent valves; Directly be disposed to chimney to the combustion air of suitable proportion, can increase air capacity through interchanger like this, reach the purpose of protection interchanger in time to take away the heat of interchanger.
Before (4) second air dilution valve is installed in smoke exhaust fan; After entrance flue gas temperature that the three thermocouple before the smoke exhaust fan detects smoke exhaust fan is higher than certain value; Second air dilution valve can be regulated aperture automatically according to temperature signal, thereby the air capacity of regulating in the factory building that is absorbed through the second air dilution tunnel reduces flue-gas temperature; When flue-gas temperature was too high, second air dilution blower fan started automatically, strengthens air quantity high-temperature flue gas is diluted, and further reduced flue-gas temperature, thereby prevented the too high and damage that arrives of the impeller temperature of smoke exhaust fan.
(5) first thermopairs are used for accurately measuring entering interchanger smoke inlet end A flue-gas temperature before; Second thermopair is used for accurately measuring interchanger smoke outlet B flue-gas temperature afterwards; Three thermocouple is used to measure entering smoke exhaust fan flue-gas temperature before; Measure flue-gas temperature more exactly through three thermopairs and corresponding temperature transfer control thereof, protect interchanger better.
The beneficial effect of apparatus of the present invention is: can measure flue-gas temperature more exactly, when production line generation abnormal conditions, when flue-gas temperature is higher, can protect interchanger well, accurately control furnace pressure simultaneously.
Description of drawings
Fig. 1 is the structural representation of the horizontal annealing furnace smoke discharging of the present invention system.
Among the figure, the 1-lehre; The 2-pressometer; 3-furnace pressure transfer control; The 4-baffle plate; 5.1-the first air dilution tunnel; 5.2-the second air dilution tunnel; 6.1-first air dilution blower fan; 6.2-second air dilution blower fan; 7.1-first air dilution valve; 7.2-second air dilution valve; 8-combustion air transport pipe; 9.1-the first temperature transfer control; 9.2-the second temperature transfer control; 9.3-the 3rd temperature transfer control; 10.1-first thermopair; 10.2-second thermopair; 10.3-three thermocouple; 11-combustion air blower fan; The 12-interchanger; The 13-smoke exhaust fan; 14-fume emission pipeline; 15-combustion air vent valves.
Embodiment
Below in conjunction with accompanying drawing and embodiment technical scheme of the present invention is done further explanation.
With reference to shown in Figure 1; A kind of horizontal annealing furnace smoke discharging of the present invention system; Comprise fume emission pipeline 14, interchanger 12 and smoke exhaust fan 13; Fume emission pipeline 14 is connected with the preheating section of lehre 1, and interchanger 12 is located on the fume emission pipeline 14 with smoke exhaust fan 13 successively, and the fume emission pipeline 14 of smoke exhaust fan 13 exit end leads to chimney; Heat exchanger 12 comprises smoke inlet end A and the smoke outlet B that communicates with fume emission pipeline 14; And gas inlet end C that communicates with combustion air transport pipe 8 and air end D, the gas inlet end C of heat exchanger 12 is connected with combustion air blower fan 11, and air end D links to each other with the heating zone of lehre 1 through combustion air transport pipe 8; On the fume emission pipeline 14 between interchanger 12 and lehre 1 preheating section baffle plate 4 that is used to control furnace pressure is installed; This baffle plate 4 links to each other with smoke exhaust fan 13 through furnace pressure transfer control 3, and the heating zone of said lehre 1 and preheating section are equipped with pressometer 2, and said furnace pressure transfer control 3 is connected with each pressometer; First air dilution valve 7.1 is installed on the fume emission pipeline 14 between baffle plate 4 and the interchanger 12 smoke inlet end A; Combustion air transport pipe 8 behind the interchanger 12 air end D is provided with combustion air vent valves 15, and combustion air vent valves 15 is joined with chimney.
Second air dilution valve 7.2 is installed on the fume emission pipeline 14 between said interchanger 12 smoke outlet B and the smoke exhaust fan 13.
Be equipped with on the fume emission pipeline 14 between said interchanger 12 and first air dilution valve 7.1 and be used to measure first thermopair 10.1 that gets into interchanger 12 smoke inlet end A flue-gas temperature before; First thermopair 10.1 is connected with first air dilution valve 7.1 through the first temperature transfer control 9.1; Correspondence is connected with that correspondence is equipped with first air dilution blower fan 6.1 on the first air dilution tunnel, 5.1, the first air dilution tunnel 5.1 on first air dilution valve 7.1.
Second thermopair, 10.2, the second thermopairs 10.2 that flue-gas temperature after the smoke outlet B that is used to measure interchanger 12 is installed on the fume emission pipeline 14 between said interchanger 12 and second air dilution valve 7.2 are connected with combustion air vent valves 15 through the second temperature transfer control 9.2.
Be equipped with between said second air dilution valve 7.2 and the smoke exhaust fan 13 and be used to measure the three thermocouple 10.3 that gets into smoke exhaust fan 13 flue-gas temperature before; Three thermocouple 10.3 is connected with smoke exhaust fan 13 preceding second air dilution valves 7.2 through the 3rd temperature transfer control 9.3; Correspondence is connected with that correspondence is equipped with second air dilution blower fan 6.2 on the second air dilution tunnel, 5.2, the second air dilution tunnel 5.2 on second air dilution valve 7.2.
During work, baffle plate 4 is used to control furnace pressure with smoke exhaust fan 13, measures the pressure of heating zone burner hearth and preheating section burner hearth through pressometer 2; Get the MV of all observed values; The baffle plates 4 of signal before through furnace pressure transfer control 3 and interchanger 12 are connected, and when furnace pressure during greater than set(ting)value, at first system can adjust baffle plate 4 apertures automatically; After baffle plate 4 apertures are transferred to maximum, can't satisfy setting pressure, heighten smoke exhaust fan 13 rotating speeds again.Otherwise fume emission pipeline pressure reduces smoke exhaust fan 13 rotating speeds earlier during less than set(ting)value, when smoke exhaust fan 13 is transferred to minimum speed, can't satisfy setting pressure, reduces baffle plate 4 apertures again.
First air dilution valve 7.1 is used to protect interchanger 12; When first thermopair 10.1 detects after interchanger 12 entrance flue gas temperatures reach certain value; First air dilution valve 7.1 is regulated aperture automatically according to the variation of flue-gas temperature, thereby regulates the air quantity that gets into flue 14 through the first air dilution tunnel 5.1; When flue-gas temperature too high; First air dilution valve 7.1 is adjusted to maximum opening still can not satisfy the permission entrance flue gas temperature of interchanger 12 time; First air dilution blower fan 6.1 starts automatically; Strengthen air quantity high-temperature flue gas is diluted, reduce flue-gas temperature, prevent that interchanger 12 from damaging owing to flue-gas temperature is too high.
Combustion air vent valves 15 is used to protect interchanger 12; When production line stopped or slowing down, interchanger 12 can not bear too high temperature, for preventing such situation; Need to regulate the aperture of combustion air vent valves 15; Directly be disposed to chimney to the combustion air of suitable proportion, can increase air capacity through interchanger 12 like this, reach the purpose of protection interchanger 12 in time to take away the heat of interchanger 12.
Before second air dilution valve 7.2 is installed in smoke exhaust fan 13; After entrance flue gas temperature that the three thermocouple 10.3 before the smoke exhaust fan 13 detects smoke exhaust fan 13 is higher than certain value; Second air dilution valve 7.2 can be regulated aperture automatically according to temperature signal, thereby the air capacity of regulating in the factory building that is absorbed through the second air dilution tunnel 5.2 reduces flue-gas temperature; When flue-gas temperature was too high, second air dilution blower fan 6.2 started automatically, and the increasing air quantity dilutes high-temperature flue gas, further reduces flue-gas temperature, thereby prevented the too high and damage that arrives of the impeller temperature of smoke exhaust fan 13.
First thermopair 10.1 is used for accurately measuring entering interchanger smoke inlet end A flue-gas temperature before; Second thermopair 10.2 is used for accurately measuring interchanger smoke outlet B flue-gas temperature afterwards; Three thermocouple 10.3 is used to measure entering smoke exhaust fan 13 flue-gas temperature before; Measure flue-gas temperature more exactly through three thermopairs 10.1 ~ 10.3 and corresponding temperature transfer control 9.1 ~ 9.3 thereof, protect interchanger better.
Above disclosedly be merely preferred embodiment of the present invention; The present invention also can be applicable to vertical annealing furnace and other continuous annealing furnaces; Therefore can not limit the present invention's interest field with this, the equivalence of doing according to claim of the present invention changes, and still falls into protection scope of the present invention.
Claims (5)
1. horizontal annealing furnace smoke discharging system; Comprise fume emission pipeline (14), interchanger (12) and smoke exhaust fan (13); Fume emission pipeline (14) is connected with the preheating section of lehre (1); Interchanger (12) and smoke exhaust fan (13) are located on the fume emission pipeline (14) successively; The fume emission pipeline (14) of smoke exhaust fan (13) exit end leads to chimney; Heat exchanger (12) comprises smoke inlet end A and the smoke outlet B that communicates with fume emission pipeline (14); And gas inlet end C that communicates with combustion air transport pipe (8) and air end D, the gas inlet end C of heat exchanger (12) is connected with combustion air blower fan (11), and air end D links to each other with the heating zone of lehre (1) through combustion air transport pipe (8); It is characterized in that: on the fume emission pipeline (14) between interchanger (12) and lehre (1) preheating section baffle plate (4) that is used to control furnace pressure is installed; This baffle plate (4) links to each other with smoke exhaust fan (13) through furnace pressure transfer control (3), and the heating zone of said lehre (1) and preheating section are equipped with pressometer (2), and said furnace pressure transfer control (3) is connected with each pressometer; First air dilution valve (7.1) is installed on the fume emission pipeline (14) between baffle plate (4) and interchanger (12) the smoke inlet end A; Combustion air transport pipe (8) behind interchanger (12) the air end D is provided with combustion air vent valves (15), and combustion air vent valves (15) is joined with chimney.
2. horizontal annealing furnace smoke discharging as claimed in claim 1 system is characterized in that: second air dilution valve (7.2) is installed on the fume emission pipeline (14) between said interchanger (12) smoke outlet B and the smoke exhaust fan (13).
3. horizontal annealing furnace smoke discharging as claimed in claim 1 system; It is characterized in that: first thermopair (10.1) that the flue-gas temperature before the smoke inlet end A that is used to measure interchanger (12) is installed on the fume emission pipeline (14) between said interchanger (12) and first air dilution valve (7.1); First thermopair (10.1) is connected with first air dilution valve (7.1) through the first temperature transfer control (9.1); First air dilution valve (7.1) is gone up correspondence and is connected with the first air dilution tunnel (5.1), and the first air dilution tunnel (5.1) goes up correspondence first air dilution blower fan (6.1) is installed.
4. horizontal annealing furnace smoke discharging as claimed in claim 2 system; It is characterized in that: second thermopair (10.2) of the flue-gas temperature after the smoke outlet B that is used to measure interchanger (12) is installed on the fume emission pipeline (14) between said interchanger (12) and second air dilution valve (7.2), and second thermopair (10.2) is connected with combustion air vent valves (15) through the second temperature transfer control (9.2).
5. horizontal annealing furnace smoke discharging as claimed in claim 2 system; It is characterized in that: between said second air dilution valve (7.2) and the smoke exhaust fan (13) three thermocouple (10.3) that is used for measuring entering smoke exhaust fan (13) flue-gas temperature before is installed; Three thermocouple (10.3) is connected through preceding second air dilution valve (7.2) of the 3rd temperature transfer control (9.3) and smoke exhaust fan (13); Second air dilution valve (7.2) is gone up correspondence and is connected with the second air dilution tunnel (5.2), and the second air dilution tunnel (5.2) goes up correspondence second air dilution blower fan (6.2) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103208750A CN102816902A (en) | 2012-09-03 | 2012-09-03 | Smoke evacuation system of horizontal type annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103208750A CN102816902A (en) | 2012-09-03 | 2012-09-03 | Smoke evacuation system of horizontal type annealing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102816902A true CN102816902A (en) | 2012-12-12 |
Family
ID=47301346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103208750A Pending CN102816902A (en) | 2012-09-03 | 2012-09-03 | Smoke evacuation system of horizontal type annealing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102816902A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103540732A (en) * | 2013-10-24 | 2014-01-29 | 中冶南方(武汉)威仕工业炉有限公司 | Device and method for recycling flue gas waste heat of radiant tube roller-hearth heat treatment furnace |
| CN104073624A (en) * | 2014-07-15 | 2014-10-01 | 中冶南方工程技术有限公司 | Pressure control method for furnace chamber of vertical continuous annealing furnace |
| CN105154658A (en) * | 2015-09-28 | 2015-12-16 | 中冶南方（新余）冷轧新材料技术有限公司 | Furnace pressure control method and device capable of achieving fast disconnection |
| CN106011401A (en) * | 2016-06-21 | 2016-10-12 | 首钢京唐钢铁联合有限责任公司 | Annealing furnace smoke exhaust fan control method and control system |
| CN108266397A (en) * | 2016-12-30 | 2018-07-10 | 北京凯德中天科技发展有限公司 | Power plant's air-introduced machine two close cycles dynamic optimization energy-saving control method |
| CN109141051A (en) * | 2018-10-12 | 2019-01-04 | 厦门大学嘉庚学院 | A kind of optimum design method of heat accumulating type industrial heating furnace controling of the pressure of the oven |
| CN114216346A (en) * | 2021-12-23 | 2022-03-22 | 中冶南方（武汉）热工有限公司 | Cold-rolled stainless steel annealing furnace waste heat gradient recycling system and method |
| CN114507777A (en) * | 2020-11-16 | 2022-05-17 | 上海梅山钢铁股份有限公司 | Furnace pressure control method for horizontal annealing furnace |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200967830Y (en) * | 2006-10-31 | 2007-10-31 | 黄石山力科技发展有限公司 | Protective atmosphere isolation apparatus for cold rolling strip steel continuous annealing furnace |
| CN202881339U (en) * | 2012-09-03 | 2013-04-17 | 中冶南方(武汉)威仕工业炉有限公司 | Smoke discharging system of horizontal type annealing furnace |
-
2012
- 2012-09-03 CN CN2012103208750A patent/CN102816902A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200967830Y (en) * | 2006-10-31 | 2007-10-31 | 黄石山力科技发展有限公司 | Protective atmosphere isolation apparatus for cold rolling strip steel continuous annealing furnace |
| CN202881339U (en) * | 2012-09-03 | 2013-04-17 | 中冶南方(武汉)威仕工业炉有限公司 | Smoke discharging system of horizontal type annealing furnace |
Non-Patent Citations (1)
| Title |
|---|
| 萧育青等: "球墨铸铁管连续式退火炉温度控制", 《铸造技术》 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103540732A (en) * | 2013-10-24 | 2014-01-29 | 中冶南方(武汉)威仕工业炉有限公司 | Device and method for recycling flue gas waste heat of radiant tube roller-hearth heat treatment furnace |
| CN104073624A (en) * | 2014-07-15 | 2014-10-01 | 中冶南方工程技术有限公司 | Pressure control method for furnace chamber of vertical continuous annealing furnace |
| CN104073624B (en) * | 2014-07-15 | 2016-06-29 | 中冶南方工程技术有限公司 | A kind of vertical continuous annealing furnace hearth pressure control method |
| CN105154658A (en) * | 2015-09-28 | 2015-12-16 | 中冶南方（新余）冷轧新材料技术有限公司 | Furnace pressure control method and device capable of achieving fast disconnection |
| CN106011401A (en) * | 2016-06-21 | 2016-10-12 | 首钢京唐钢铁联合有限责任公司 | Annealing furnace smoke exhaust fan control method and control system |
| CN106011401B (en) * | 2016-06-21 | 2018-06-22 | 首钢京唐钢铁联合有限责任公司 | Annealing furnace smoke exhaust fan control method and control system |
| CN108266397A (en) * | 2016-12-30 | 2018-07-10 | 北京凯德中天科技发展有限公司 | Power plant's air-introduced machine two close cycles dynamic optimization energy-saving control method |
| CN108266397B (en) * | 2016-12-30 | 2019-11-26 | 北京凯德恒源科技发展有限公司 | Power plant's air-introduced machine two close cycles dynamic optimization energy-saving control method |
| CN109141051A (en) * | 2018-10-12 | 2019-01-04 | 厦门大学嘉庚学院 | A kind of optimum design method of heat accumulating type industrial heating furnace controling of the pressure of the oven |
| CN109141051B (en) * | 2018-10-12 | 2020-03-17 | 厦门大学嘉庚学院 | Optimal design method for furnace pressure control of heat accumulating type industrial heating furnace |
| CN114507777A (en) * | 2020-11-16 | 2022-05-17 | 上海梅山钢铁股份有限公司 | Furnace pressure control method for horizontal annealing furnace |
| CN114507777B (en) * | 2020-11-16 | 2024-01-05 | 上海梅山钢铁股份有限公司 | Furnace pressure control method of horizontal annealing furnace |
| CN114216346A (en) * | 2021-12-23 | 2022-03-22 | 中冶南方（武汉）热工有限公司 | Cold-rolled stainless steel annealing furnace waste heat gradient recycling system and method |
| CN114216346B (en) * | 2021-12-23 | 2023-11-03 | 中冶南方（武汉）热工有限公司 | Cascade recycling system and method for waste heat of cold-rolled stainless steel annealing furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102816902A (en) | Smoke evacuation system of horizontal type annealing furnace | |
| CN104017981B (en) | A kind of continuous casting steel billet heating process of heat accumulating type roller bottom heating furnace | |
| CN104152668B (en) | Reduce the devices and methods therefor of heater for rolling steel billet oxidization burning loss | |
| CN106521120A (en) | Bearing steel heating decarbonization control method | |
| CN107755220A (en) | A kind of Painting Shop drying system | |
| CN103940213A (en) | Coke drying system dry gas temperature and flow self-adjustment control device and method | |
| CN202881339U (en) | Smoke discharging system of horizontal type annealing furnace | |
| CN201706903U (en) | Device used for controlling internal pressure of furnace and recovering heat energy of flue gas | |
| CN205245149U (en) | Anti cold system of congealing of outer circulating combustion equipment of flue gas | |
| KR20060021018A (en) | Combustion waste gas heat recovery system in reheating furnace | |
| CN208059584U (en) | A kind of fire resisting brick kiln for wearing kiln car | |
| JP4987689B2 (en) | Direct-fired type roller hearth continuous heat treatment furnace | |
| CN103063044A (en) | Rotary hearth furnace flue gas waste heat utilization system and rotary hearth furnace flue gas waste heat utilization method | |
| CN107917424A (en) | A kind of Two-cuff Technique burner smoke evacuation automatic control system and its smoke exhaust method | |
| CN202658199U (en) | Thermal treating furnace | |
| KR102260259B1 (en) | Apparatus for increasing combustion efficiency of hot blast stoves | |
| CN108278854A (en) | A kind of diesel oil furnace drying method | |
| CN104359314B (en) | The energy-saving heating furnace system of a kind of Mist heat recovering and flue gas waste heat recovery method | |
| JP2010060156A (en) | NOx SUPPRESSION CONTROLLING DEVICE OF HEATING FURNACE | |
| CN112378267A (en) | Method for increasing flue gas temperature of semi-closed submerged arc furnace | |
| KR100334581B1 (en) | Cooling system of the exhaust gas in the annealing furnace | |
| JPS6118039Y2 (en) | ||
| CN204455205U (en) | A kind of can the low temperature naked light heat treatment furnace of homogeneous heating | |
| JP2013139966A (en) | Method and device for automatically controlling nox in heating furnace | |
| CN211316544U (en) | Hot air type heat-conducting oil explosion-proof boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121212 |