CN203683612U - Mixed-gas dual regenerative heating furnace for strip steel hot rolling - Google Patents
Mixed-gas dual regenerative heating furnace for strip steel hot rolling Download PDFInfo
- Publication number
- CN203683612U CN203683612U CN201320836373.3U CN201320836373U CN203683612U CN 203683612 U CN203683612 U CN 203683612U CN 201320836373 U CN201320836373 U CN 201320836373U CN 203683612 U CN203683612 U CN 203683612U
- Authority
- CN
- China
- Prior art keywords
- air
- gas
- burner
- heat
- coal gas
- 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
- 238000010438 heat treatment Methods 0.000 title claims abstract description 35
- 230000001172 regenerating effect Effects 0.000 title abstract description 12
- 229910000831 Steel Inorganic materials 0.000 title abstract description 8
- 239000010959 steel Substances 0.000 title abstract description 8
- 238000005098 hot rolling Methods 0.000 title abstract description 6
- 230000009977 dual effect Effects 0.000 title abstract 4
- 239000000779 smoke Substances 0.000 claims abstract description 31
- 238000009825 accumulation Methods 0.000 claims abstract description 26
- 238000007599 discharging Methods 0.000 claims abstract description 17
- 239000000919 ceramic Substances 0.000 claims abstract description 9
- 239000003034 coal gas Substances 0.000 claims description 69
- 238000000034 method Methods 0.000 claims description 50
- 238000005338 heat storage Methods 0.000 claims description 11
- 235000019504 cigarettes Nutrition 0.000 claims description 9
- 239000003245 coal Substances 0.000 claims description 9
- 238000002791 soaking Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 29
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 75
- 238000005516 engineering process Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- NBGBEUITCPENLJ-UHFFFAOYSA-N Bunazosin hydrochloride Chemical compound Cl.C1CN(C(=O)CCC)CCCN1C1=NC(N)=C(C=C(OC)C(OC)=C2)C2=N1 NBGBEUITCPENLJ-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Images
Abstract
The utility model provides a mixed-gas dual regenerative heating furnace for strip steel hot rolling and belongs to the technical field of the heating furnaces. The heating furnace aims at performing dual-heat accumulation on a mixed gas before heating a slab. The following technical scheme is adopted: air regenerative burner boxes and gas regenerative burner boxes are arranged at intervals on the furnace walls on the two sides in the hearth of the heating furnace, ceramic heat accumulators are mounted in the boxes, respectively, air and gas go into the air regenerative burner boxes and the gas regenerative burner boxes, respectively, so as to exchange heat, next, the heat accumulated air and the heat accumulated gas after heat accumulation go into the hearth to be burnt, and meanwhile, the regenerative burner boxes on the opposite sides begin discharging smoke to accumulate heat, and therefore, a combustion process is completed and the purpose of heating the slab is achieved. The mixed-gas dual regenerative heating furnace for strip steel hot rolling is characterized in that unsafe factors in the use of the mixed gas are eliminated and the easily happening local high temperature phenomenon of the heating furnace in the combustion process is also avoided, and as a result, the slab can be heated evenly, and moreover, the mixed-gas dual regenerative heating furnace for strip steel hot rolling has the advantages of low pollution, low energy consumption, small equipment volume, low investment and low operation cost, and also has tremendous popularization value.
Description
Technical field
The utility model relates to a kind of heat accumulating type hot rolling belt heating furnace that adopts mixed gas to make fuel, belongs to process furnace technical field.
Background technology
Heat storage type combustion is a kind of efficient, energy-conservation combustion system, on heater for rolling steel, generally adopts, and its range of application is also in continuous expansion.This regenerative combustion technology, when burning air and coal gas used can be preheated to respectively to 1000 ℃ of left and right, therefore can greatly improve the theoretical combustion temperature of fuel, this technology is widely used in low-calorie blast furnace gas at present, by accumulation of heat, the theoretical combustion temperature of blast furnace gas can reach more than 2400 ℃, actual combustion temperature also can reach 1700 ℃, can meet the needs of all heater for rolling steel completely, on the Regenerative Heating Furnace of the blast furnace gas that therefore burns steel rolling production-line at home, be widely used.
But for the mixed gas take coal gas of converter as main medium calorific value, existing heat-accumulation combustion mode exists defect, cannot meet service requirements.First the gas composition that is mixed gas is different from blast furnace gas, the mixed gas of medium calorific value is take coal gas of converter as main, blending coke-oven gas and blast furnace gas simultaneously, in mixed gas, contain the flammable explosive gas such as methane, hydrogen, in the time carrying out conventional heat storage type combustion, due to communtation loss in commutation process, hydrogen in uncombusted coal gas, methane enter in smoke discharging pipe, in the time that concentration acquires a certain degree, will there is blast accident, safety in production can not be guaranteed.Especially hot rolled strip process furnace, because fire box temperature is high, coal gas usage quantity is large, and this contradiction is more outstanding.Next is if by air and the equal accumulation of heat to 1000 of coal gas ℃ directly mixed firing later, the theoretical combustion temperature of coal gas will reach more than 3000 ℃, actual temperature of combustion also will reach 2300 ℃, the obviously this tissue of process furnace is in this manner produced, be easy to there will be heating quality accident, heat storage is under so high working temperature simultaneously, and work-ing life is short, can increase production cost.Therefore the excellent line process furnace that the furnace bottom of domestic only minority is lower, coal gas usage quantity is little has adopted the two accumulation of heats of mixed gas, and its result of use is also far away from the result of use of the two accumulation of heats of blast furnace gas.
And conventional space gas preheated burning mode, that air and gas change heater are set in flue, although air themperature can be preheating to 450 ℃, gas temperature is preheating to more than 350 ℃, but because air and gas change heater are to also having certain distance (more than 50 meters) between burner, warm air and gas line exist temperature drop (general temperature drop is at 2 ~ 3 ℃/meter), actual air and the gas temperature that arrives burner only has 200～300 ℃, for calorific value at 7000Kj/Nm
3mixed gas, after preheating, its theoretical combustion temperature only has 2300 ℃, actual combustion temperature is only 1600 ℃, cannot meet the normal needs of producing of hot rolled strip process furnace.This combustion system also needs to increase construction flue, chimney, air and gas change heater, waste heat boiler etc. simultaneously, and investment can increase greatly, and therefore, existing combustion system, no matter be that conventional combustion or heat storage type combustion all can not meet the demands.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of hot rolled strip process furnace that adopts the two accumulation of heats of mixed gas, this process furnace is take high heating value mixed gas as fuel, by air and gas double accumulation of heat, meet steel rolling and produce the requirement to Yield and quality, and reach the object of safety and stability production and energy-conserving and environment-protective.
The technical scheme solving the problems of the technologies described above is:
A hot rolled strip process furnace that adopts the two accumulation of heats of mixed gas, it comprises heating furnace body, air honeycomb regenerator burner casing, coal gas heat-accumulating burner casing, air honeycomb regenerator burner block, coal gas heat accumulating type burner block, air T-valve, gas three-way valve, air line, gas line, empty cigarette smoke discharging pipe, coal smoke smoke discharging pipe, air honeycomb regenerator burner casing and coal gas heat-accumulating burner casing are arranged on respectively on the both sides furnace wall in process furnace burner hearth, in air honeycomb regenerator burner casing and in coal gas heat-accumulating burner casing, lay respectively ceramic heat storage body, air honeycomb regenerator burner block and coal gas heat accumulating type burner block are arranged on respectively air honeycomb regenerator burner casing, the front end of coal gas heat-accumulating burner casing, the front end of air honeycomb regenerator burner block and coal gas heat accumulating type burner block has respectively air jet and gas port, air line is connected with the rear end of air honeycomb regenerator burner casing by air T-valve with empty cigarette smoke discharging pipe, and gas line is connected with the rear end of coal gas heat-accumulating burner casing by gas three-way valve with coal smoke smoke discharging pipe.
The hot rolled strip process furnace of the two accumulation of heats of above-mentioned employing mixed gas, in described process furnace burner hearth, there are the first heating zone, the second heating zone and soaking zone, their orders are arranged, in each heating zone, have upper and lower two-layer zone of heating, every layer is separately installed with air honeycomb regenerator burner casing and coal gas heat-accumulating burner casing.
The hot rolled strip process furnace of the two accumulation of heats of above-mentioned employing mixed gas, the air honeycomb regenerator burner casing that described process furnace is every section and coal gas heat-accumulating burner casing adopt space to arrange
The hot rolled strip process furnace of the two accumulation of heats of above-mentioned employing mixed gas, the gas port of the air jet of described air honeycomb regenerator burner block and coal gas heat accumulating type burner block is horizontally disposed, between air jet and gas port, keep the distance of 1000-1350mm, the variation of its distance is thought corresponding with the heating efficiency of burner, the heating efficiency of burner is larger, and the distance between air and gas port is larger.
The hot rolled strip process furnace of the two accumulation of heats of above-mentioned employing mixed gas, the angle between described air jet and gas port is 10～25 °, and process furnace inner width is larger, and angle is less.In air jet, the spouting velocity of air is 7.5～8.0m/s, and the coal gas spouting velocity in gas port is 7.0～7.5m/s.
The beneficial effects of the utility model are:
The utility model can be by the mixed gas of medium calorific value by heat storage type combustion mode for hot rolled strip process furnace, the feature such as there is simple in structure, easy construction, energy consumption is low, use is safe, the slab that can make to come out of the stove reaches that temperature is even, output is high.More it is worthy of note, because the calorific value of mixed gas will be higher than the calorific value of blast furnace gas, under identical output, the usage quantity of mixed gas and smoke growing amount are respectively 40% and 60% of blast furnace gas, adopt the pipeline of the recuperative heater of mixed gas, comprise coal gas, empty cigarette, the smoke discharging pipe of coal smoke, supporting valve, the induced draft fan power of empty cigarette and coal smoke, the quantity of heat storage all will be well below the blast furnace gas recuperative heater of identical heating efficiency, therefore, the investment of the process furnace of the two accumulation of heats of employing mixed gas is far below blast furnace (BF) gas heating stove, and go into operation after due to running cost, comprise the gas consumption of process furnace, the power consumption of induced draft fan, upkeep cost and the ceramic honeycomb body etc. of pipeline and valve is all lower than blast furnace gas heat accumulating type hot rolling belt heating furnace, there is good economic and social benefit.
Accompanying drawing explanation
Fig. 1 is longitudinal sectional drawing of the present utility model;
Fig. 2 is vertical view of the present utility model;
Fig. 3 is the utility model transverse cross.
In figure, mark is as follows: coal gas heat accumulating type burner block 1, gas port 2, air honeycomb regenerator burner block 3, air jet 4, process furnace burner hearth 5, igniter burner 6, coal gas heat-accumulating burner casing 7, air honeycomb regenerator burner casing 8, gas line 9, coal smoke smoke discharging pipe 10, gas three-way valve 11, air T-valve 12, empty cigarette smoke discharging pipe 13, air line 14.
Embodiment
In figure, show, in process furnace burner hearth 5 of the present utility model, there are the first heating zone, the second heating zone and soaking zone, they are linked in sequence, and have upper and lower two-layer zone of heating in each heating zone, and every layer is separately installed with air honeycomb regenerator burner casing 8 and coal gas heat-accumulating burner casing 7.
In figure, show, air honeycomb regenerator burner casing 8 and coal gas heat-accumulating burner casing 7 are arranged on respectively on the both sides furnace wall in process furnace burner hearth 5, in air honeycomb regenerator burner casing 8 and the interior ceramic heat storage body of laying respectively of coal gas heat-accumulating burner casing 7.
In figure, show, air honeycomb regenerator burner block 3 and coal gas heat accumulating type burner block 1 are arranged on respectively the front end of air honeycomb regenerator burner casing 8, coal gas heat-accumulating burner casing 7, and the front end of air honeycomb regenerator burner block 3 and coal gas heat accumulating type burner block 1 has respectively air jet 4 and gas port 2.
In figure, show, air line 14 is connected with the rear end of air honeycomb regenerator burner casing 8 by air T-valve 12 with empty cigarette smoke discharging pipe 13, and gas line 9 is connected with the rear end of coal gas heat-accumulating burner casing 7 by gas three-way valve 11 with coal smoke smoke discharging pipe 10.
Pass through said structure, coal gas carries out heat exchange with ceramic honeycomb body in air honeycomb regenerator burner casing 8 and coal gas heat-accumulating burner casing 7, then be injected to together with air in process furnace burner hearth 5, in process furnace burner hearth 4, complete combustion processes through air and the coal gas of accumulation of heat.
In above-mentioned combustion processes, process furnace is with section, the air honeycomb regenerator burner casing 8 of both sides and coal gas heat-accumulating burner casing 7 form a burning control unit, when the burning control unit of one side burns, the burning control unit in opposite side on its opposite is in smoke evacuation accumulation of heat state, complete after a combustion period, pass through Controlling System, adjust the position of air T-valve 12 and gas three-way valve 11, burning and the smoke evacuation state of two groups of burning control units exchange, originally the burning control unit of smoke evacuation accumulation of heat enters state of combustion, the commutation of all burning control units adopts automated manner to carry out.In this way, realize the process furnace stable burning of the two accumulation of heats of mixed gas.
In figure, show, the air honeycomb regenerator burner casing 8 that process furnace is every section and coal gas heat-accumulating burner casing 7 adopt space to arrange, guaranteeing that coal gas is sprayed onto can be complete in stove, fully burning.
In figure, show, air honeycomb regenerator burner casing 8 and the coal gas heat-accumulating burner casing 7 of each burning zone have adopted centralized dispersal reversing mode, but every section of upper and lower all commutating respectively, gas three-way valve 11 and air T-valve 12 are close to layout with coal gas heat-accumulating burner casing 7, air honeycomb regenerator burner casing 8, to dwindle the dead band between T-valve and burner casing, reduce coal gas heat-accumulating burner casing 7, air honeycomb regenerator burner casing 8 coal gas imperfect combustion amount in the time of commutation.
In figure, show, the air jet 4 of air honeycomb regenerator burner block 3 and the gas port 2 of coal gas heat accumulating type burner block 1 are horizontally disposed, between air jet 4 and gas port 2, keep enough distances, distance is 1000～1350mm, object is to extend air and the mixing process of coal gas in process furnace, reduce the combustionvelocity of air and coal gas, avoid after air and coal gas ejection, near burning air jet 4 and gas port 2, thereby elongate the length of flame of burner ejection, the temperature of flame kernel while reducing mixed gas burning.
In figure, show, air jet 4 and gas port 2 are away from billet surface to be heated, and its object is to prevent that thermal-flame from causing burning to slab, causes mass defect.Meanwhile, after accumulation of heat, air jet 4 is wanted to guarantee that burner flame length exceedes the central position of process furnace with angle and speed that gas port 2 sprays.
Working process of the present utility model is as follows:
Process furnace burner hearth 5 is baked to furnace temperature after 700 ℃ at igniter burner 6, regenerative combustion system puts into operation, the required air that now burns is by air line 14, after opening, air T-valve 12 enters air honeycomb regenerator burner casing 8, ceramic honeycomb body in freezing air and air honeycomb regenerator burner casing 8 carries out heat exchange, freezing air becomes warm air, enter in stove by air honeycomb regenerator burner block 3, established air jet 4 owing to staying in advance on air honeycomb regenerator burner block 3, air jet 4 is with specific angle and specific area, air is in the time spraying from air honeycomb regenerator burner block 3 like this, can be sprayed onto in process furnace burner hearth 5 according to pre-set speed and angle.Meanwhile, adjacent with air honeycomb regenerator burner casing 8 is coal gas heat-accumulating burner casing 7, coal gas also enters coal gas heat-accumulating burner casing 7 from gas line 9 by gas three-way valve 11, carry out heat exchange with the ceramic honeycomb body in coal gas heat-accumulating burner casing 7, cooled coal gas becomes heating gas, then enter in stove by coal gas heat accumulating type burner block 1, established gas port 2 owing to staying in advance on coal gas heat accumulating type burner block 1, gas port 2 is with specific angle and specific area, therefore when coal gas sprays from coal gas heat accumulating type burner block 1, can be sprayed onto in process furnace burner hearth 5 according to pre-set speed and angle, air and coal gas are sprayed onto process furnace burner hearth 5 when interior, two strands of air-flows can form angle of cut α, this angle [alpha] guarantees that flame can arrive the central position of process furnace, and elongate the flame that coal gas forms, the district of localized hyperthermia forming while eliminating conventional medium calorific value mixed gas burning, the final homogeneity that guarantees process furnace burner hearth 5 interior temperature.In the time of the burning control unit burning of a side, the burning control unit of opposite side starts smoke evacuation, flue gas enters in coal gas heat-accumulating burner casing 7 and air honeycomb regenerator burner casing 8 by gas port 2 and air jet 4 respectively, complete the heat exchange between high-temperature flue gas and ceramic honeycomb body, flue gas after heat exchange completes, its temperature is about 150 ℃ of left and right, discharge from coal smoke smoke discharging pipe 10 and empty cigarette smoke discharging pipe 13 respectively, complete the heat storage type combustion process of one-period, in the combustion processes of heat accumulating type coal gas, process furnace burner hearth 5 reaches the temperature of setting, the go forward side by side heating of andante base.
Because process furnace does not form high-temperature zone in heat storage type combustion process, therefore also greatly reduce the pollutents such as the NOx producing in combustion processes, be conducive to protection of the environment.
Claims (5)
1. one kind adopts the hot rolled strip process furnace of the two accumulation of heats of mixed gas, it is characterized in that: it comprises heating furnace body, air honeycomb regenerator burner casing (8), coal gas heat-accumulating burner casing (7), air honeycomb regenerator burner block (3), coal gas heat accumulating type burner block (1), air T-valve (12), gas three-way valve (11), air line (14), gas line (9), empty cigarette smoke discharging pipe (13), coal smoke smoke discharging pipe (10), air honeycomb regenerator burner casing (8) and coal gas heat-accumulating burner casing (7) are arranged on respectively on the both sides furnace wall in process furnace burner hearth (5), in air honeycomb regenerator burner casing (8) and in coal gas heat-accumulating burner casing (7), lay respectively ceramic heat storage body, air honeycomb regenerator burner block (3) and coal gas heat accumulating type burner block (1) are arranged on respectively air honeycomb regenerator burner casing (8), the front end of coal gas heat-accumulating burner casing (7), the front end of air honeycomb regenerator burner block (3) and coal gas heat accumulating type burner block (1) has respectively air jet (4) and gas port (2), air line (14) is connected with the rear end of air honeycomb regenerator burner casing (8) by air T-valve (12) with empty cigarette smoke discharging pipe (13), gas line (9) is connected with the rear end of coal gas heat-accumulating burner casing (7) by gas three-way valve (11) with coal smoke smoke discharging pipe (10).
2. the hot rolled strip process furnace of the two accumulation of heats of employing mixed gas according to claim 1, it is characterized in that: in described process furnace burner hearth (5), have the first heating zone, the second heating zone and soaking zone, they are linked in sequence, in each heating zone, have upper and lower two-layer zone of heating, every layer is separately installed with air honeycomb regenerator burner casing (8) and coal gas heat-accumulating burner casing (7).
3. the hot rolled strip process furnace of the two accumulation of heats of employing mixed gas according to claim 2, is characterized in that: the air honeycomb regenerator burner casing (8) that described process furnace is every section and coal gas heat-accumulating burner casing (7) adopt space to arrange
The hot rolled strip process furnace of the two accumulation of heats of employing mixed gas according to claim 3, it is characterized in that: the air jet (4) of described air honeycomb regenerator burner block (3) and the gas port (2) of coal gas heat accumulating type burner block (1) are horizontally disposed, between air jet (4) and gas port (2), keep the distance of 1000～1350mm.
4. the hot rolled strip process furnace of the two accumulation of heats of employing mixed gas according to claim 4, is characterized in that: the angle between described air jet (4) and gas port (2) is 10～25 °, and process furnace inner width is larger, and angle is less.
5. in air jet, the spouting velocity of air is 7.5～8.0m/s, and the coal gas spouting velocity in gas port is 7.0～7.5m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320836373.3U CN203683612U (en) | 2013-12-18 | 2013-12-18 | Mixed-gas dual regenerative heating furnace for strip steel hot rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320836373.3U CN203683612U (en) | 2013-12-18 | 2013-12-18 | Mixed-gas dual regenerative heating furnace for strip steel hot rolling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203683612U true CN203683612U (en) | 2014-07-02 |
Family
ID=51005537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320836373.3U Expired - Lifetime CN203683612U (en) | 2013-12-18 | 2013-12-18 | Mixed-gas dual regenerative heating furnace for strip steel hot rolling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203683612U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266178A (en) * | 2014-09-25 | 2015-01-07 | 河北钢铁股份有限公司唐山分公司 | Regenerative burner capable of completely burning coal gas |
| CN109631574A (en) * | 2018-12-20 | 2019-04-16 | 唐山钢铁集团有限责任公司 | A kind of Two-cuff Technique roller hearth type heating furnace |
| CN114485201A (en) * | 2022-03-01 | 2022-05-13 | 重庆燃控科技有限公司 | Double-heat-storage intelligent diagnosis combustion system and diagnosis method |
-
2013
- 2013-12-18 CN CN201320836373.3U patent/CN203683612U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266178A (en) * | 2014-09-25 | 2015-01-07 | 河北钢铁股份有限公司唐山分公司 | Regenerative burner capable of completely burning coal gas |
| CN109631574A (en) * | 2018-12-20 | 2019-04-16 | 唐山钢铁集团有限责任公司 | A kind of Two-cuff Technique roller hearth type heating furnace |
| CN109631574B (en) * | 2018-12-20 | 2024-01-16 | 唐山钢铁集团有限责任公司 | Double heat accumulating roller bottom type heating furnace |
| CN114485201A (en) * | 2022-03-01 | 2022-05-13 | 重庆燃控科技有限公司 | Double-heat-storage intelligent diagnosis combustion system and diagnosis method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101314811B (en) | Method for using blast furnace gas to heat of large-scale walking beam type plate blank heating furnace | |
| CN204514035U (en) | Double heat storage type gas heating furnace | |
| CN205403139U (en) | Low nitrogen buggy boiler | |
| CN107420898A (en) | A kind of New Regenerative flat flame burner | |
| CN101839638A (en) | Heat accumulating and preheating combined heating method of slag-drip high-temperature silicon steel plate blank heating furnace | |
| CN201313819Y (en) | Volatile matter and preheated air channel structure of calciner | |
| CN103627882A (en) | Regenerative hot rolled strip heating furnace and slab heating process | |
| CN201778080U (en) | Heat accumulating type soaking pit furnace | |
| CN203683612U (en) | Mixed-gas dual regenerative heating furnace for strip steel hot rolling | |
| CN102191347A (en) | Reversal-burning hot-blast stove, its combustion method and combustion temperature controlling method | |
| CN102072651A (en) | Heat accumulating type heating furnace totally using blast furnace gas as fuel | |
| CN101775483B (en) | Heat accumulative roller bottom heating furnace | |
| CN202432680U (en) | Reverse gas fire pipe environment-friendly air heating furnace | |
| CN208547256U (en) | Preheating furnace on sintering machine machine | |
| CN101846447A (en) | Down draft kiln | |
| CN107902870B (en) | Energy-saving kiln for environment-friendly unit glass wool | |
| CN100383265C (en) | High performance. Energy saving, environmental protective heat storage type refinery furnace for metal magnesium | |
| CN101093140A (en) | Heat storage type vertical metal magnesium reducing furnace | |
| CN207035127U (en) | A kind of New Regenerative flat flame burner | |
| CN207592741U (en) | A kind of online heat accumulating type heat patching device of continuous casting billet | |
| CN209541411U (en) | A kind of Two-cuff Technique roller hearth type heating furnace | |
| CN208071568U (en) | A kind of environmental unit mineral wool energy saving kiln | |
| CN203976884U (en) | Stove air single heat accumulating type nozzle at the bottom of a kind of roller | |
| CN201648473U (en) | Improved heat accumulating type roller bottom heating furnace | |
| CN201355041Y (en) | Single preheating heat accumulating type inflamer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 063016 Binhe Road, Hebei, Tangshan City, No. 9 Patentee after: HBIS COMPANY LIMITED TANGSHAN BRANCH Address before: 063016 Binhe Road, Hebei, Tangshan City, No. 9 Patentee before: Tangshan Branch of Hebei Iron & Steel Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |