CN101514868A - Roasting industrial furnace - Google Patents
Roasting industrial furnace Download PDFInfo
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- CN101514868A CN101514868A CNA2009100254454A CN200910025445A CN101514868A CN 101514868 A CN101514868 A CN 101514868A CN A2009100254454 A CNA2009100254454 A CN A2009100254454A CN 200910025445 A CN200910025445 A CN 200910025445A CN 101514868 A CN101514868 A CN 101514868A
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- 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
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
Abstract
The invention relates to a roasting industrial furnace, in particular to a roasting industrial furnace used for finely casting formwork shells, belonging to the industrial technical field. The roasting industrial furnace is characterized in that a stored-heat burner and a low-pressure natural gas burner are arranged on a furnace body. The stored-heat burner is arranged on one side of the furnace body. The low-pressure natural gas burner is arranged on a back wall body of the furnace body. A four-way reversing valve is fixed above the stored-heat burner. An interface of the four-way reversing valve is connected with the stored-heat burner by a pipeline. A combustion-supporting air pipe is connected with a high pressure centrifugal combustion-supporting fan. A smoke exhausting pipe of the stored-heat burner is connected with a smoke exhausting ejecting fan of the stored-heat burner. A natural gas pipe is respectively communicated with the stored-heat burner, the low-pressure natural gas burner and a burner ignition system of a combustion system by a control valve group. The roasting industrial furnace can save energy, reduce the smoke exhaustion, lower noises and realize the environmental protection. With convenient operation, the furnace can run safely and reliably.
Description
Technical field
The present invention relates to a kind of roasting industrial furnace, specifically be used for the roasting industrial furnace of finish cast die shell, belong to the industrial furnace technology field.
Background technology
Have in the technology at oneself, existing roaster mainly is made up of body of heater, fire door, lowering or hoisting gear, burner system, fume extractor, air preheater and combustion control system etc.These roasters are because structural design is not too reasonable, and normal the appearance blocks the situation of stopping working because of flue; The surplus cigarette temperature of chimney higher (about more than 900 ℃), air preheater is almost ineffective, and a large amount of heat energy is discharged with waste gas and is not used; Control system is too simple and crude, can't effectively control the output of combustion gas; Temperature control system is almost malfunctioning; Oven door sealing is tight, furnace insulation is too poor, and shell and top temperature cause the interior a large amount of heats of stove to scatter and disappear up to 200 ℃; The flame of burner hearth can not circulate, and can cause the burning dead angle; The roaster natural gas does not have o-volt protection device system, and is flame-out easily; Relatively poor detonation, the furnace roof of throwing of causing easily of ignition system; There is a large amount of black smokes to emerge the severe contamination workshop condition in the formwork roasting process.
At present, the box roaster of domestic production has only been done to improve perfect at aspects such as body of heater material, oven door sealing, air preheater, combustion system and control systems.Though these measures can be effectively controlled on production safety, but because the restriction of the performance of air preheater own, make the recycling of fume afterheat be confined in certain scope, promptly do not having important breakthrough aspect energy-saving and cost-reducing and the environmental protection, maximum energy-conservation 5%～10%.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, thereby a kind of roasting industrial furnace (heat accumulating type casing roaster) is provided, the waste heat of flue gas is recycled fully, the surplus cigarette temperature of discharging from heat storage is no more than 150 ℃; Body of heater and oven door sealing performance are good, and furnace heat dispels the heat seldom; Can when cutting down the consumption of energy, also can alleviate fume emission, realize environmental protection, and intelligent control system can make stove safe and reliable to operation, operate more easy.
According to technical scheme provided by the invention, a kind of roasting industrial furnace comprises body of heater, masonry of well, fire door, lowering or hoisting gear, fume extractor, regenerative combustion system and intelligent control system, masonry of well is located at bottom of furnace body, body of heater is provided with fire door, lowering or hoisting gear is connected on the fire door, be provided with auxiliary fume extractor at the body of heater rear portion, combustion system and control system constitute cyclic control system, feature is: two cover regenerator gas formula burners and two cover auxiliary low pressure natural gas burners are housed on the described body of heater, two cover regenerator gas formula burners are arranged in a side of body of heater, two cover auxiliary low pressure natural gas burners are arranged on the back wall of body of heater, and four-way change-over valve is fixed on the top of two cover regenerator gas formula burners; Four-way change-over valve has four interfaces, and wherein first, second two interfaces are connected with two cover regenerator gas formula burners respectively by pipeline; The 3rd interface is connected with the centrifugal high pressure combustion fan by the combustion air pipeline; The 4th interface is connected with heat-accumulating burner smoke evacuation injection blower fan by heat-accumulating burner smoke evacuation pipeline; Described combustion air pipeline is divided into three branch roads, and first branch road links to each other with four-way change-over valve; Second branch road is communicated with two cover auxiliary low pressure natural gas burners respectively; The 3rd branch road is communicated with the ignition system of burner; Connect the gas pipeline that comes inserts two cover regenerator gas formula burners, two cover auxiliary low pressure natural gas burners and burner respectively by the control valve group ignition system from house steward.
Described body of heater masonry of well is provided with auxiliary flue, and the top of auxiliary flue is provided with the steel plate smoke exhaust pipe, and the interface two ends of heat-accumulating burner smoke evacuation injection blower fan link to each other with the steel plate smoke exhaust pipe with regenerator gas formula burner by pipeline respectively.Described body of heater furnace bottom the place ahead is provided with skimming gate.
House steward's safety cut-off valve, natural gas magnetic valve and the high-end system that gives out of gas are housed respectively on the described gas pipeline.Safety anti-explosive device and automatic and manual control valve are housed on the described combustion air pipeline.
Described combustion air pipeline is connected with the burner ignition system of auxiliary low pressure natural gas burner and combustion system respectively.
Compared with the prior art the present invention has the following advantages:
1. energy-saving effect:
Adopted regenerative combustion system and low pressure natural gas burner and usefulness, compound furnace wall structure, auxiliary fume extractor rational in infrastructure in the technical measures of this stove, sealed good fire door etc., every advanced person's energy-saving technological measure reduces energy consumption greatly; Compare with existing roaster, this stove can save energy more than 50%.
2. environmental protection:
Indexs such as the smoke evacuation of this equipment and noise can both satisfy the related standards and the requirement of country.
(1) fume emission:
The a.SO2 emission control: the fuel that this stove adopts is natural gas, belongs to the low-contamination type burning and contains combustion of sulfur for low, and furnace stack exceeds nearby buildings 3m, and the discharge capacity of SO2 and flooring concentration all are lower than relative national standards.
The b.CO emission control; The burner that this stove adopted is a heat-accumulating burner, and the control and regulation of amount of natural gas, coefficient of excess air and various pressure guarantee fuel abundant, smooth combustion in the combustion chamber, have fundamentally eliminated dangerous comburant such as carbon particle and CO and have produced.But 0 grade of blackness Da Lingeman grade.
The c.NO2 emission control: the natural gas heat-accumulating burner that this stove is selected, nozzle structure and combustion system suppress the generation of NOX compound.The abundant mixed combustion of natural gas and combustion air is equipped with air-fuel ratio and regulates, and is controlled at below 1200 ℃, has reduced flame temperature, has improved burner combustion gas vent speed simultaneously, has shortened the time of combustion gas in the high-temperature region.Above measure has suppressed because of burning produces NOX, has guaranteed that the discharging of NOX is up to state standards.
D. flue gas adopts high chimney emission in a organized way: up to standard for guaranteeing fume emission, protection atmospheric environment, this project adopt the chimney stack smoke evacuation.Chimney height is determined by standard GB 16297-1996 " discharge standard of air pollutants ".
(2) noise:
This stove uses the refractory fibre compound Lining, so the effect of sound insulation and sound-absorbing is very good.Adding stove is hermetic when work, so the noise that burner produces is little to influence on every side.After measured, running hours, surrounding environment meets GBJ87 " Code for design of noise cintrol in industrial enterprises " by the sound that burner produces.
3. safety:
It is fuel that this stove adopts natural gas, and all facilities are by national safety standard requirement design, manufacturing, installation and debugging.
(1) all electric equipments of this stove, electric wire buries tubine, instrument cabinet etc. that safety grounding device is all arranged.Chimney is provided with lightning rod and grounding body, earth resistance＜4 Ω.
(2) fire door lifting extreme position all has the travel switch of dual fail-safe to prevent that the fire door stroke from transfiniting.
(3) each pipe-line system is provided with security alarm and protective device:
Blast: pressure is controlled automatically, undervoltage warning and control and explosion-protection equipment.
Natural gas: report to the police automatically during, pressure anomaly under-voltage when natural gas, gas pipeline system automatic emergency is closed when surpassing dangerous values.
(4) furnace temperature: overtemperature alarm.
(5) equipment all moves and is provided with the safety interlocking protection, guarantees each electric system operate as normal.
(6) house steward of combustion system system is provided with and cuts valve soon, and blower fan stall automatic disconnection is reported to the police, and single burner is flame-out, the pneumatic operated valve auto-closing that its combustion gas is in charge of.Air pipe line is provided with safe riot gear, to guarantee the safe operation of each system.
(7) every cover combustion system all is provided with the control of automatic igniting security procedure, and flame detects automatically, stops working, the tempering automatic emergency is closed protection and scene and control room and reported to the police simultaneously.
Description of drawings
Fig. 1 is the front view of roaster of the present invention.
Fig. 2 for the A of roaster of the present invention to view.
Fig. 3 is the vertical view of roaster of the present invention.
Fig. 4 for the B of roaster of the present invention to view.
Fig. 5 is the C-C view of roaster of the present invention.
Fig. 6 is the D-D view of roaster of the present invention.
Fig. 7 is the E-E view of roaster of the present invention.
Fig. 8 is a combustion system frame principle figure of the present invention.
Fig. 9 is a control system frame principle figure of the present invention.
The specific embodiment
As Fig. 1～shown in Figure 7, comprise four-way switching valve 1; body of heater 2 (furnace binding 2a; body of heater composite fire furnace lining 2b); steel plate smoke exhaust pipe 3 (smoke exhaust pipe heat-barrier coating 3a); lowering or hoisting gear 4; special-purpose skimming gate 5; regenerator gas formula burner 6; travel switch 7; electric block 8; manual adjustments valve 9; heat-accumulating burner smoke evacuation injection blower fan 10; combustion air pipeline 11; centrifugal high pressure fan 12; gas pipeline 13; heat-accumulating burner smoke exhaust pipe 14; electronic type cigarette valve 15; the high-end system 16 that gives out of gas; auxiliary fume extractor 17; masonry of well 18; fire door 19 (portal frame 19d; fire door walking track 19a; anchor chain transition wheel 19b; anchor chain 19c; portal frame 19d); temperature-control heat couple 20; auxiliary low pressure natural gas burner 22; house steward's safety cut-off valve 23; natural gas magnetic valve 24; safety anti-explosive device 25; the ignition system 26 of burner and control pressurer system 27 etc.
Body of heater 2 of the present invention is to be made of furnace binding 2a, body of heater composite fire furnace lining 2b.Furnace binding 2a by 8#, 10# equal leg angle, and 10# channel-section steel and 5mm steel plate assembly welding form.Fire-resistant spheroidal graphite cast-iron guide plate of silicon and panel in be equipped with at the stove gate place of oven body part are beneficial to realize the heat-resisting indeformable of soft seal between fire door and the body of heater and panel.Body of heater 2 furnace roofs are full fibre structure, and full fibre structure adopts zirconium aluminium type alumina silicate fibre material, by the heat resisting steel anchoring piece refractory fibre product structure is fixed on the furnace roof steel plate.It is that high-alumina brick is built by laying bricks or stones that the furnace side wall adopts interior wall, adopts alumina silicate fibre insulation composite construction between brick wall and the body of heater steel plate.Guarantee furnace body outer wall temperature rise≤50 ℃.Be convenient to artificial thermometric for the accuracy of checking temp measuring system, when preventing that temp measuring system from damaging, we on furnace roof, open a thermocouple contrast hole (with the distance of thermocouple hole be 70-80mm).
Masonry of well 18 is built by laying bricks or stones and is formed by diatomite brick, light-weight brick, high-alumina brick layering.Bottom of furnace body is provided with auxiliary fume extractor 17, in case in time standby when regenerator gas formula burner 6 breaks down, also can significantly improve the fire box temperature uniformity simultaneously, thereby improve the formwork roasting quality.In addition, furnace bottom also is provided with special-purpose skimming gate 5 and can easily carries out scarfing cinder.
Body of heater 2 is provided with fire door 19, and fire door 19 comprises fire door steel structure framework and fire door furnace lining.The fire door steel structure framework is the tower structure that is formed by the steel plate bond pads, and with shell steel plate and heat resisting steel backplate.
The fire door furnace lining adopts zirconium aluminium type alumina silicate fibre heat insulation structural, by the heat resisting steel anchoring piece refractory fibre product is fixed on the fire door steel plate.Portal frame 19d is the steel structure frame that is formed by shaped steel and batten plate assembly welding.Fire door walking track 19a is formed by the channel-section steel assembly welding.They all weld together with the furnace binding of body of heater 2.
Furnace door lifting device 4 is connected with fire door 19 by anchor chain 19c, and furnace door lifting device 4 mainly comprises electric block 8, several parts compositions such as anchor chain transition wheel 19b, anchor chain 19c.Fire door track 19a, anchor chain transition wheel 19b, portal frame 19d all are fixed on the body of heater; Electric block 8 is installed on the portal frame 19d.
Be provided with the auxiliary fume extractor 17 of a cover at body of heater 2 rear portions, the partial fume that combustion of natural gas produced in the stove be connected with heat-accumulating burner smoke exhaust pipe 14 along the flue discharge again, and be discharged to outside the factory building by steel plate smoke exhaust pipe 3.Electronic type cigarette valve 15 is contained on the steel plate smoke exhaust pipe, regulates the exhaust smoke level size according to combustion case.
Described fume extractor mainly comprises steel plate smoke exhaust pipe 3, heat-accumulating burner smoke evacuation injection blower fan 10, heat-accumulating burner smoke exhaust pipe 14 and auxiliary fume extractor 17 etc.10 flue gases of discharging from regenerator gas formula burner 6 of heat-accumulating burner smoke evacuation injection blower fan to the steel plate smoke exhaust pipe 3 that communicates with auxiliary flue, are discharged factory building by heat-accumulating burner smoke discharging pipe 14 injections again.Heat-accumulating burner smoke evacuation injection blower fan 10 is installed in and is fixed on the surface wind frame, and the top of auxiliary flue is a steel plate smoke exhaust pipe 3; The interface two ends of heat-accumulating burner smoke evacuation injection blower fan 10 link to each other with steel plate smoke exhaust pipe 3 with regenerator gas formula burner by pipeline respectively, and smoke exhaust pipe heat-barrier coating 3a is arranged in the steel plate smoke exhaust pipe 3.
Combustion system and pipeline mainly are made up of two cover regenerator gas formula burners 6, centrifugal high pressure fan 12, gas pipeline 13, combustion air pipeline 11 and various valve module.Two cover regenerator gas formula burners 6 and two cover auxiliary low pressure natural gas burners 22 are housed on the described body of heater 2, two cover regenerator gas formula burners 6 are arranged in a side of body of heater 2, two cover auxiliary low pressure natural gas burners 22 are arranged on the back wall of body of heater 2, and four-way change-over valve 1 is fixed on the top of two cover regenerator gas formula burners 6.Four-way change-over valve 1 has four interfaces, and wherein, first interface is connected with centrifugal high pressure combustion fan 12 by combustion air pipeline 11; Second interface is connected with heat-accumulating burner smoke evacuation injection blower fan 10 by heat-accumulating burner smoke evacuation pipeline 14; The the 3rd, the 4 two interface in addition of four-way change-over valve 1 is connected with two cover regenerator gas formula burners 6 respectively by pipeline.
Fuel is natural gas in the stove of the present invention, and two cover auxiliary low pressure natural gas burners 22 are mainly used in low temperature igniting and standby when regenerator gas formula burner 6 breaks down.
The flue-gas temperature that roaster is discharged can reach 1000 ℃, accounts for and infeeds 40%～60% of furnace heat.Reclaim this part heat in order to warm-up combustion-supporting air and natural gas.Can realize energy-conservation more than 50%.
The whole accumulation of heat of this regenerator gas formula burner, exothermic process are finished on two cover regenerator gas formula burners 6, and fuel need not interrupt supplying with.
Common, accumulation of heat two cover combustion systems are arranged apart.Use the low pressure natural gas burner during igniting, treat to switch on the hold over system again after dense smoke that impurity such as flameholding, wax produce has been arranged.Igniting is easy, reliable like this, and the workshop is polluted few.When hold over system breaks down, can in 2 minutes, switch to and continue on the low pressure natural gas burner 22 to use, guarantee that the equipment operation does not stop.
Air feed system of the present invention is selected a 4kw centrifugal high pressure combustion fan 12 for use, is used to supply with the required combustion air of burner combustion, and 4kw heat-accumulating burner smoke evacuation injection blower fan 10 is used for the smoke evacuation injection of regenerator gas formula burner 6.
The gas pipeline system, according to gas furnace design safety standard, the most perfect explosion precaution below in the design of roaster gas pipeline and control system, having adopted; House steward's safety cut-off valve 23 and natural gas magnetic valve 24 are housed respectively on gas pipeline 13.
Burner stops working and reports to the police and the preceding natural pneumoelectric magnet valve 24 of automatic fast shut-off burner, carries out the purging in 3 seconds after the automatic again igniting.
Natural gas is under-voltage (≤2.5Kpa), fan trouble or under-voltage (≤system alarm 2.0Kpa) time was delayed time after 6 seconds, and fault is not eliminated yet and then cut off natural gas magnetic valve 24 automatically, simultaneously fast shut-off house steward safety cut-off valve 23 automatically.
When having a power failure suddenly, cut off the preceding natural pneumoelectric magnet valve 24 of burner and house steward's safety cut-off valve 23 automatically, the incoming call back enters normal purging ignition procedure then by manually starting house steward's safety cut-off valve; The safety cut-off valve manner of execution is the slow open form of quick closing valve (≤0.8 second).
On the terminal and house steward of stokehold gas pipeline 13 the high-end system 16 that gives out of gas is set all, again during blow-on, the air in the pipeline must be put only during blow-on first or after the long-time blowing out, so as not to when igniting, take place quick-fried so or explode.
Stokehold air hose end is provided with protecting cover rupture pressure disc, in case natural gas when producing gas explosion, punctures the rupture pressure disc pressure release because of valve leak or other reason infiltration air pipe line, avoids causing the person or equipment injury accident.
Dispose hand off valve, natural gas filter, import hand pressure regulator valve, electric safe stop valve, turbine flowmeter, the safe pipeline etc. that diffuses on the natural gas intake header respectively, after manual pressure regulation, natural gas line pressure is decompression voltage stabilizing automatically from about the 20kp, constant in 5kPa～7kPa, because the pressure regulator valve flow of being joined is bigger, in the frequent adjustment process of stove flame, pressure oscillation is minimum, guarantees the stable of temperature control process; The range of turbine flowmeter is set at 10～80Nm
3/ h is to guarantee the accurate and accurate of natural gas dosage.
Be equipped with combustion gas main line and igniting fuel gas pipeline before all burners, all be provided with magnetic valve and hand off ball valve on two pipelines.The automatic control of overall processes such as every cover burner can be realized lighting a fire, flame-out warning.
Control system of the present invention adopts intelligent program control instrument control system and special nozzle controller, and valve member adopts the valve module of import.It mainly comprises temperature control system, control pressurer system, combustion control system and fault detect warning system.
1. temperature control system
This body of heater top is provided with temperature-control heat couple 20, and it and control system, burner form closed-loop control, adopts import high-precision intelligent instrument to control temperature in the stove automatically.Temperature controller has the RS485 interface, is convenient to remote reviewing.
The record of fire box temperature curve and demonstration adopt the circular chart recorder table to finish.
The record of fire box temperature curve and demonstration adopt the circular chart recorder table to finish.
2. control pressurer system
Roaster is provided with the under-voltage and superpressure emergency cut-off of natural gas and alarm control system, combustion air press formula robot control system(RCS), furnace pressure automatic control system.
3. combustion control system
The combustion control system core is that components and parts such as burner controller, import magnetic valve, pneumatic dibit butterfly valve are formed, and application is ripe, use is reliable, fault rate is low.
Combustion control system has the two kinds of control models in " long-range " " this locality ", and under " long-range " state, combustion system and control system constitute closed-loop control.The switch of burner, large and small fire are regulated and are controlled by control system.In case when system broke down, incision " this locality " realized control on the spot by the controller in the burner control cabinet.
Combustion control system is provided with automatic flame monitoring and defencive function is closed in outage, in case burner extinguishes or burns badly, control system can be cut off the natural gas magnetic valve immediately and report to the police.Simultaneously, all valves adopt electric pass formula, in case have a power failure with regard to automatic cutout valve, prevent to produce security incident.
The switch of each burner, large and small fire, flameout state, control signal all transfer to control system and carry out monitoring by PLCI/O module circuit.
4. fault detect warning system
This equipment is provided with complete fault detect, warning, diagnosis and safety protection function.Various faults show employing fault alarm module, and light and warning are arranged on switch board.
Heat accumulating type casing roaster burning of the present invention and control principle are as follows:
Every cover burner all is furnished with a cover high-voltage ignition device, and lighting a fire successfully, the corresponding burner in back takes fire.What just used during the starting point fire burns is two cover low pressure natural gas burners.Treat flameholding, when temperature reaches 500 ℃, by manually the low pressure natural gas combustion system being switched to regenerative combustion system.At this moment the low pressure natural gas burner is closed, heat-accumulating burner ignition meanwhile.Temperature rises to 1150 ℃ in stove, begins insulation, and formwork is come out of the stove after 30 minutes.When regenerative combustion system breaks down, burn by manually switching to immediately on the low pressure natural gas burner, return regenerative combustion system by manual switching again after waiting fault clearance.In the formwork roasting process, combustion system is not out of service, guarantees the formwork roasting quality.
Claims (6)
1, a kind of roasting industrial furnace, comprise body of heater (2), masonry of well (18), fire door (19), lowering or hoisting gear (4), fume extractor, regenerative combustion system and intelligent control system, masonry of well (18) is located at body of heater (2) bottom, body of heater (2) is provided with fire door (19), lowering or hoisting gear (4) is connected on the fire door (19), be provided with fume extractor at body of heater (2) rear portion, combustion system and control system constitute cyclic control system, it is characterized in that: two cover regenerator gas formula burners (6) and two cover auxiliary low pressure natural gas burners (22) are housed on the described body of heater (2), two cover regenerator gas formula burners (6) are arranged in a side of body of heater (2), two cover auxiliary low pressure natural gas burners (22) are arranged on the back wall of body of heater (2), and four-way change-over valve (1) is fixed on the top of two cover regenerator gas formula burners (6); Four-way change-over valve (1) has four interfaces, and wherein first, second two interfaces are connected with two cover regenerator gas formula burners (6) respectively by pipeline; The 3rd interface is connected with centrifugal high pressure combustion fan (12) by combustion air pipeline (11); The 4th interface is connected with heat-accumulating burner smoke evacuation injection blower fan (10) by the heat-accumulating burner pipeline (14) of discharging fume; Described combustion air pipeline (11) is divided into three branch roads, and first branch road links to each other with four-way change-over valve (1); Second branch road is communicated with two cover auxiliary low pressure natural gas burners (22) respectively; The 3rd branch road is communicated with the ignition system (26) of burner; Connect the gas pipeline (13) that comes inserts two cover regenerator gas formula burners (6), two cover auxiliary low pressure natural gas burners (22) and burner respectively by the control valve group ignition system (26) from house steward.
2, roasting industrial furnace according to claim 1, it is characterized in that described body of heater (2) masonry of well (18) is provided with auxiliary flue, the top of auxiliary flue is provided with steel plate smoke exhaust pipe (3), and the interface two ends of heat-accumulating burner smoke evacuation injection blower fan (10) link to each other with steel plate smoke exhaust pipe (3) with regenerator gas formula burner (6) by pipeline respectively.
3, roasting industrial furnace according to claim 1 is characterized in that described body of heater (2) furnace bottom the place ahead is provided with skimming gate (5).
4, roasting industrial furnace according to claim 1 is characterized in that being equipped with respectively on the described gas pipeline (13) house steward's safety cut-off valve (23), natural gas magnetic valve (24) and the high-end system that gives out of gas (16).
5, roasting industrial furnace according to claim 1 is characterized in that being equipped with on the described combustion air pipeline (11) safety anti-explosive device (25) and automatic and manual control valve.
6, roasting industrial furnace according to claim 1 is characterized in that described combustion air pipeline (11) is connected with the burner ignition system (26) of auxiliary low pressure natural gas burner (22) and combustion system respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100254454A CN101514868B (en) | 2009-03-03 | 2009-03-03 | Roasting industrial furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100254454A CN101514868B (en) | 2009-03-03 | 2009-03-03 | Roasting industrial furnace |
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| CN101514868A true CN101514868A (en) | 2009-08-26 |
| CN101514868B CN101514868B (en) | 2010-12-29 |
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| CN102444910A (en) * | 2011-12-31 | 2012-05-09 | 杭州杭真真空工程技术有限公司 | Combustion control system |
| CN102759276A (en) * | 2012-07-31 | 2012-10-31 | 中冶南方(武汉)威仕工业炉有限公司 | Novel furnace door lifting device |
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| CN102382973A (en) * | 2011-10-20 | 2012-03-21 | 华中科技大学 | Heating mantle for hood type annealing furnace |
| CN102382973B (en) * | 2011-10-20 | 2014-07-23 | 华中科技大学 | Heating mantle for hood type annealing furnace |
| CN102444910A (en) * | 2011-12-31 | 2012-05-09 | 杭州杭真真空工程技术有限公司 | Combustion control system |
| CN102759276A (en) * | 2012-07-31 | 2012-10-31 | 中冶南方(武汉)威仕工业炉有限公司 | Novel furnace door lifting device |
| CN105502375A (en) * | 2016-02-01 | 2016-04-20 | 张�杰 | Preparation equipment for graphene slurry and preparation technology thereof |
| CN107419068A (en) * | 2017-09-21 | 2017-12-01 | 江苏恒力炉业有限公司 | A kind of sector gas saves annealing furnace |
| CN109722520A (en) * | 2019-01-11 | 2019-05-07 | 无锡华玉铝业有限公司 | Mesh-belt type hot air cycle annealing furnace oil cigarette recovery system |
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| CN101514868B (en) | 2010-12-29 |
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