CN104713123A - Aluminum melting furnace oil-gas-dual-purpose thermal storage classification lean oxygen combustion device - Google Patents
Aluminum melting furnace oil-gas-dual-purpose thermal storage classification lean oxygen combustion device Download PDFInfo
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- CN104713123A CN104713123A CN201510078936.0A CN201510078936A CN104713123A CN 104713123 A CN104713123 A CN 104713123A CN 201510078936 A CN201510078936 A CN 201510078936A CN 104713123 A CN104713123 A CN 104713123A
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Abstract
The invention discloses an aluminum melting furnace oil-gas-dual-purpose thermal storage classification lean oxygen combustion device which is composed of a furnace body, a thermal storage energy recycling device connected with the furnace body, a smoke discharging induced draft fan, a first-level combustion fan, a second-level combustion fan, an igniter, an oil burner, a gas burner, a four-way valve, a splitter and a wind pipe, wherein the four-way valve is connected with the second-level combustion fan, the thermal storage energy recycling device and the smoke discharging induced draft fan, and the splitter is provided with a plurality of inlets and a plurality of outlets. The splitter is provided with two check valves which are connected with the first-level combustion fan and the second-level combustion fan respectively. One inlet of the splitter is connected with the first-level combustion fan, and the other inlet of the splitter is connected with the second-level combustion fan, and the splitter is provided with three outlets which are connected with the igniter, the oil burner and the gas burner respectively. According to the combustion device, two different combustion paths are adopted, normal production of equipment is guaranteed, product consumption and loss are lowered, and high yielding and energy saving are achieved.
Description
Technical field
The invention belongs to heat power engineering field, more specifically, the present invention relates to a kind of accumulation of heat classification lean-oxygen burner of aluminium melting furnace oil-gas two-way.
Background technology
Regenerative combustion technology has the multiple superiority such as energy-efficient and low pollution emission.High-efficiency heat-accumulating technical elements, within 2013, the energy-conservation science and technology of prestige have developed aluminium melting furnace classification lean-oxygen burner, its heat accumulating type grading combustion technology due to its can greatly Mist heat recovering, significantly improve fuel economy and be widely used aluminum i ndustry processing melting in, but because combustion gas generally has municipal pipeline supply, various reasons is had to cause combustion gas cut-off, make cannot complete in aluminium melting way, cause energy waste, the serious major accident that a full smelting furnace may be caused to scrap.
Summary of the invention
Based on this, in order to overcome the defect of above-mentioned prior art, the invention provides a kind of accumulation of heat classification lean-oxygen burner of aluminium melting furnace oil-gas two-way of high yield and saving energy.
In order to realize foregoing invention object, this invention takes following technical scheme:
An accumulation of heat classification lean-oxygen burner for aluminium melting furnace oil-gas two-way, described burner is made up of body of heater, accumulation of heat thermal energy recoverer, smoke evacuation air-introduced machine, one-level combustion fan, secondary combustion fan, igniter, oil burner, gas burner, four-way change-over valve, the current divider with multiple entrance and multiple outlet and airduct; Described body of heater is connected with accumulation of heat thermal energy recoverer; Described current divider also has two check-valves, is connected respectively with one-level combustion fan with secondary combustion fan; One of them entrance of described current divider is connected with one-level combustion fan, and another entrance is connected with secondary combustion fan, and three outlets of described current divider are connected with gas burner with igniter, oil burner respectively; Described secondary combustion fan is connected with described cross valve by airduct, and described cross valve is connected with air-introduced machine of discharging fume with described accumulation of heat thermal energy recoverer respectively by airduct; Described igniter, oil burner, gas burner are all arranged in the burner aperture of described furnace body wall.
Wherein in an embodiment, described cross valve is provided with A air port, B air port, secondary combustion air entrance and smoke evacuation outlet, and described cross valve forms interface intersection by driver drives valve disc and is communicated with.
Wherein in an embodiment, described accumulation of heat thermal energy recoverer comprises heat-storing sphere A, heat-storing sphere B, and described heat-storing sphere A and B includes heat-storing material and be arranged at the outer field shell of heat-storing material.
Wherein in an embodiment, between described heat-storing material and skin, be provided with heat-insulation layer; Described heat-storing sphere A and heat-storing sphere B is provided with high temperature blow vent, low temperature blow vent, maintenance accumulation of heat case lid, add heat-storing sphere mouth, ventilate barrier and unload heat-storing sphere mouth.
Wherein in some embodiments, described gas burner is provided with combustion gas and enters pipe, combustion air entrance, fuel mix chamber, burner combustion mouth and igniter.
Wherein in some embodiments, described oil burner is provided with fuel oil and enters pipe, combustion air entrance, fuel mix chamber, burner combustion mouth and igniter.
Wherein in some embodiments, described body of heater is single cell structure, comprise burner hearth, the safety relief mouth be arranged on the shell of body of heater, combustion-supporting burning wind entrance, combustion product outlet and add raw material fire door and be arranged at bottom of furnace body put the aluminium mouth of a river.
Compared with prior art, the present invention has following beneficial effect:
1, the accumulation of heat classification lean-oxygen burner of aluminium melting furnace oil-gas two-way of the present invention overlaps burner by oil gas two, use two different cover combustion path, when combustion gas cut-off, fuel oil is used to carry out follow-up aluminium fusion process, guarantee device fabrication is normal, thus solve the defect that aluminium melting that combustion gas cut-off causes cannot complete, avoid the major accident that the waste of the energy and whole smelting furnace scrap and occur;
2, the accumulation of heat classification lean-oxygen burner of aluminium melting furnace oil-gas two-way of the present invention is in whole service process, flame with oxidizing atmosphere does not directly contact aluminum feedstock, thus product can be reduced widely and wear and tear, the energy heats of burner combustion product to reach the object of energy recovery, realizes high yield and saving energy with combustion air.
Accompanying drawing explanation
Fig. 1 is the structural representation of the accumulation of heat classification lean-oxygen burner of the aluminium melting furnace oil-gas two-way of the embodiment of the present invention 1;
Reference numeral: 1, body of heater; 1-1, burner hearth; 1-2, pressure relief opening; 1-3, A entrance; 1-4, B export; 1-5, add raw material fire door; 1-6, put the aluminium mouth of a river; 2, accumulation of heat thermal energy recoverer; 2-1, accumulation of heat thermal energy recoverer shell; 2-2, heat-storing sphere A; 2-2-1, low temperature mouth; 2-2-2, high temperature mouth; 2-3, heat-storing sphere B; 2-3-1, low temperature mouth; 2-3-2, high temperature mouth; 3-1, one-level combustion fan; 3-2, secondary combustion fan; 4, smoke evacuation air-introduced machine; 4-1, smoke exhaust pipe; 5-1, gas burner; 5-1-1, fuel gas buring enter pipe; 5-1-2, fuel gas buring help wind entrance; 5-2, oil burner; 5-2-1, oil inflame enter pipe; 5-2-2, oil inflame help wind entrance; 5-3, igniter; 5-3-1, igniter fuel enter pipe; 5-3-2, igniting combustion supporting wind entrance; 6, cross valve; 6-1, driver; 7-1, combustion-supporting airduct; 7-2, A airduct; 7-3, B airduct; 7-4, induced duct; 7-5, exhaust duct; 8, current divider; 8-1, A air inlet; 8-2, B air inlet; 8-3-1, force one wind check-valves; 8-3-2, light breeze check-valves; 8-4, A gas outlet, 8-5, B gas outlet; 8-6, C gas outlet.
Detailed description of the invention
The present invention is described in detail below in conjunction with specific embodiment.
The accumulation of heat classification lean-oxygen burner of embodiment 1 aluminium melting furnace oil-gas two-way
Referring to Fig. 1, is the structural representation of the accumulation of heat classification lean-oxygen burner of a kind of aluminium melting furnace oil-gas two-way of the present invention.The accumulation of heat classification lean-oxygen burner of aluminium melting furnace oil-gas two-way of the present invention, an accumulation of heat classification lean-oxygen burner for aluminium melting furnace oil-gas two-way, described burner is made up of body of heater 1, accumulation of heat thermal energy recoverer 2, smoke evacuation air-introduced machine 4, one-level combustion fan 3-1, secondary combustion fan 3-2, igniter 5-3, oil burner 5-2, gas burner 5-1, four-way change-over valve 6, the current divider 8 with multiple entrance and multiple outlet and airduct; Described body of heater 1 is connected with accumulation of heat thermal energy recoverer 2; Described current divider 8 also has force one wind check-valves 8-3-1 and light breeze check-valves 8-3-2, the B air inlet 8-2 of described current divider 8 is connected with one-level combustion fan 3-1, A air inlet 8-1 is connected with secondary combustion fan 3-2, and 8-6, B gas outlet, C gas outlet 8-5, A gas outlet 8-4 of described current divider is connected with gas burner 5-1 with igniter 5-3, oil burner 5-2 respectively; Described secondary combustion fan 3-2 is connected with described cross valve 6 by combustion-supporting airduct 7-1, and described cross valve 6 passes through A airduct 7-1 and B airduct 7-3 and is connected with heat-storing sphere A2-2 with B2-3 of described accumulation of heat thermal energy recoverer 2 and air-introduced machine 4 of discharging fume respectively; Described igniter 5-3, oil burner 5-2 and gas burner 5-1 are all arranged in the burner aperture of described body of heater 1 wall.
In this embodiment, described cross valve 6 is provided with A air port, B air port, secondary combustion air entrance and smoke evacuation outlet, described cross valve 6 is intersected by the leaf one-tenth interface of driver 6-1 driver's valve and is communicated with, as shown in Figure 1, when the valve disc of cross valve 6 is 0 ° of angle, A air port is communicated with secondary combustion air entrance, B air port and smoke evacuation outlet.
In this embodiment, described accumulation of heat thermal energy recoverer 2 comprises heat-storing sphere A2-2, heat-storing sphere B2-3, and described heat-storing sphere A2-2 and heat-storing sphere B2-3 includes heat-storing material and is arranged at the outer field shell 2-1 of heat-storing material.As shown in Figure 1, the valve disc of described cross valve 6 is 0 ° of angle, and described secondary combustion air entrance is connected with described heat-storing sphere A2-2 with A air port, forms heat-storing sphere A2-2 heat release zone, described B air port is connected with described heat-storing sphere B2-3 with smoke evacuation outlet, forms heat-storing sphere B2-3 heat absorption district.
In this embodiment, heat-insulation layer is provided with between described heat-storing material and outer 2-1; Described heat-storing sphere A2-2 and heat-storing sphere B2-3 is provided with high temperature blow vent, low temperature blow vent, maintenance accumulation of heat case lid, add heat-storing sphere mouth, ventilate barrier and unload heat-storing sphere mouth.
In this embodiment, described gas burner 5-1 is provided with combustion gas and enters pipe 5-1-1, combustion air entrance 5-1-2, fuel mix chamber, burner combustion mouth, igniter 5-3.
In this embodiment, described oil burner 5-2 is provided with fuel oil and enters pipe 5-2-1, combustion air entrance 5-2-2, fuel mix chamber, burner combustion mouth, igniter 5-3.
Described igniter 5-3 is provided with igniter fuel and enters pipe 5-3-1, igniting combustion supporting wind entrance 5-3-2, fuel mix chamber, burner combustion mouth.Igniter 5-3 is positioned at burner hearth 1-1, is arranged in the burner aperture of described body of heater 1 wall.Igniter fuel enters pipe 5-3-1 and is all connected with described igniter 5-3 with described igniting combustion supporting wind entrance 5-3-2.
Described secondary combustion fan 3-2 is connected with cross valve 6, secondary combustion air enters secondary combustion air entrance and the A air port of cross valve 6, through A airduct 7-1 and the low temperature mouth 2-2-1 be arranged on heat-storing sphere 2-2 shell 2-1, combustion air is introduced heat-storing sphere A2-2 heat release zone, then by high temperature mouth 2-2-2, the secondary combustion air in heat-storing sphere A2-2 heat release zone is entered in gas burner 5-1 and oil burner 5-2.
High temperature mouth 2-3-2 on the shell 2-1 of combustion product through being arranged on heat-storing sphere 2-3 enters heat-storing sphere B2-3 heat absorption district, the heat-storing material heat release in heat-storing sphere B2-3 heat absorption district, then through low temperature mouth 2-3-1, B airduct 7-3, enters B air port and the exhanst gas outlet of cross valve 6.Flue gas is exported by the smoke evacuation of cross valve 6, with the smoke evacuation induced duct 7-4 that is connected of air-introduced machine 4 and discharging.
In this embodiment, described body of heater 1 is single cell structure, comprises burner hearth 1-1, the safety relief mouth 1-2 be arranged on the shell of body of heater 1, makes the combustion-supporting burning wind from accumulation of heat thermal energy recoverer 2 enter combustion-supporting burning wind entrance A entrance 1-3 in burner hearth 1-1, make the second-time burning product produced in the burner hearth 1-1 combustion product outlet B entered in accumulation of heat thermal energy recoverer 2 export 1-4 and be convenient to the adding raw material fire door 1-5 and be arranged at and put aluminium mouth of a river 1-6 bottom body of heater 1 of filling of raw material.
In this embodiment, the operational mode of the accumulation of heat classification lean-oxygen burner of aluminium melting furnace oil-gas two-way is as follows:
1, current divider 8 has multiple entrance and multiple outlet, and there is force one wind check-valves 8-3-1 and light breeze check-valves 8-3-2, the B air inlet 8-2 of described current divider 8 is connected with one-level combustion fan 3-1, A air inlet 8-1 is connected with secondary combustion fan 3-2, and 8-6, B gas outlet, C gas outlet 8-5, A gas outlet 8-4 of described current divider is connected with gas burner 5-1 with igniter 5-3, oil burner 5-2 respectively, after secondary combustion fan 3-2 starts, light breeze check-valves 8-3-2 valve disc on current divider 8 is opened by blast, air enters in current divider 8 chamber, through A gas outlet, air is delivered to gas burner 5-1 by 8-4, through B gas outlet, air is delivered to oil burner 5-2 by 8-5, through C gas outlet, air is delivered to igniter 5-3 by 8-6, during work gas burner 5-1, air plays cooling effect (during working oil burner 5-2 to oil burner 5-2, air plays cooling effect to gas burner 5-1), prevent high temperature from causing burner to damage, shunting is blown to igniter 5-3 by combustion air outlet 5-3-1 simultaneously, fuel enters pipe 5-3-1 and is transported in igniter 5-3 by fuel by fuel inlet, after entering fuel mix chamber, spray into burner combustion mouth, fuel mixture point burns by combustion ignition and the fiery device of inspection, combustion with meagre oxygen (single-stage combustion) is produced under a small amount of combustion air, main generation monoxide, and spread in burner hearth 1-1 rapidly,
2, air is sucked supercharging from secondary combustion air entrance by secondary combustion fan 3-2, combustion-supporting airduct 7-1 is sent into through the outlet of secondary combustion air, enter combustion air entrance and the A air port of cross valve 6, again through A airduct 7-2, send into heat-storing sphere A2-2 heat release zone through low temperature mouth 2-2-1, after the heat-storing material of heat-storing sphere A2-2 heat release zone is heated, spurt in burner hearth 1-1 through high temperature mouth 2-2-2, A entrance 1-3, again burn with the combustion product of single-stage combustion, form second-time burning and discharge a large amount of heat energy;
3, second-time burning product exports 1-4 through B, heat-storing sphere B2-3 heat absorption district is entered by high temperature mouth 2-3-2, the heat-storing material heat release in heat-storing sphere B2-3 heat absorption district, through ventilation barrier, then through low temperature mouth 2-3-1, B airduct 7-3, enter B air port and the smoke evacuation outlet of cross valve 6, then through induced duct 7-4, enter the air inducing entrance of smoke evacuation air-introduced machine 4, through air inducing outlet after supercharging, induced duct 7-4, smoke exhaust pipe 4-1 deliver to flue gas processing device and process;
4, aluminum feedstock loads burner hearth 1-1 from adding raw material fire door 1-5, and the aluminum feedstock in burner hearth 1-1, by aluminium material heat temperature raising, is molten into aluminium liquid by high-temperature flue gas, then melting and refining, and finished product aluminium water is discharged from putting aluminium mouth of a river 1-6;
5, after melting completes, general closedown secondary (master) combustion fan 3-2, after worked by one-level combustion fan 3-1, after one-level combustion fan 3-1 starts, force one wind check-valves 8-3-1 valve disc on current divider 8 is opened by blast, air enters in current divider 8 chamber, through A gas outlet, air is delivered to gas burner 5-1 by 8-4, through B gas outlet, air is delivered to oil burner 5-2 by 8-5, through C gas outlet, air is delivered to igniter 5-3 by 8-6, cooling gas burner 5-1, oil burner 5-2, igniter 5-3.
The accumulation of heat classification lean-oxygen burner of embodiment 2 aluminium melting furnace oil-gas two-way
The accumulation of heat classification lean-oxygen burner structure of the aluminium melting furnace oil-gas two-way in this embodiment is identical with embodiment 1, unlike: in this embodiment, described cross valve 6 drives valve disc at 90 ° of angles by driver 6-1, now A air port and smoke evacuation outlet, B air port is communicated with secondary combustion air entrance.Described A air port exports with smoke evacuation and is connected with described heat-storing sphere A2-2, and form heat-storing sphere A2-2 heat absorption district, described B air port is connected with described heat-storing sphere B2-3 with secondary combustion air entrance, forms heat-storing sphere B2-3 heat release zone.
In this embodiment, the operational mode of the accumulation of heat classification lean-oxygen burner of aluminium melting furnace oil-gas two-way is identical with embodiment 1, and just the operation order of 2,3 steps is different.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (7)
1. the accumulation of heat classification lean-oxygen burner of an aluminium melting furnace oil-gas two-way, it is characterized in that, described burner is made up of body of heater, the accumulation of heat thermal energy recoverer be connected with body of heater, air-introduced machine of discharging fume, one-level combustion fan, secondary combustion fan, igniter, oil burner, gas burner, the cross valve, the current divider with multiple entrance and multiple outlet and the airduct that are connected with secondary combustion fan, accumulation of heat thermal energy recoverer and air-introduced machine of discharging fume respectively; Described current divider has two check-valves, is connected respectively with one-level combustion fan with secondary combustion fan; One of them entrance of described current divider is connected with one-level combustion fan, and another entrance is connected with secondary combustion fan, and described current divider has three outlets and is connected with gas burner with igniter, oil burner respectively; Described oil burner, gas burner are all arranged in the burner aperture of described furnace body wall.
2. the accumulation of heat classification lean-oxygen burner of aluminium melting furnace oil-gas two-way according to claim 1, it is characterized in that, described cross valve is provided with A air port, B air port, secondary combustion air entrance and smoke evacuation outlet, and described cross valve forms interface intersection by driver drives valve disc and is communicated with.
3. the accumulation of heat classification lean-oxygen burner of aluminium melting furnace oil-gas two-way according to claim 1, it is characterized in that, described accumulation of heat thermal energy recoverer comprises heat-storing sphere A, heat-storing sphere B, and described heat-storing sphere A and B includes heat-storing material and be arranged at the outer field shell of heat-storing material.
4. the accumulation of heat classification lean-oxygen burner of aluminium melting furnace oil-gas two-way according to claim 3, is characterized in that, be provided with heat-insulation layer between described heat-storing material and skin; Described heat-storing sphere A and heat-storing sphere B is provided with high temperature blow vent, low temperature blow vent, maintenance accumulation of heat case lid, add heat-storing sphere mouth, ventilate barrier and unload heat-storing sphere mouth.
5. the accumulation of heat classification lean-oxygen burner of the aluminium melting furnace oil-gas two-way described according to any one of claim 1-4, it is characterized in that, described gas burner is provided with combustion gas and enters pipe, combustion air entrance, fuel mix chamber, burner combustion mouth and igniter.
6. the accumulation of heat classification lean-oxygen burner of the aluminium melting furnace oil-gas two-way described according to any one of claim 1-4, it is characterized in that, described oil burner is provided with fuel oil and enters pipe, combustion air entrance, fuel mix chamber, burner combustion mouth and igniter.
7. the accumulation of heat classification lean-oxygen burner of described aluminium melting furnace oil-gas two-way according to claim 1, it is characterized in that, described body of heater is single cell structure, comprise burner hearth, the safety relief mouth be arranged on the shell of body of heater, combustion-supporting burning wind entrance, combustion product outlet and add raw material fire door and be arranged at bottom of furnace body put the aluminium mouth of a river.
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| CN106642086A (en) * | 2016-12-27 | 2017-05-10 | 珠海市威望节能科技有限公司 | Efficient and energy-saving multi-thermal storage type flue gas waste heat recovery combustion system |
| CN107655331A (en) * | 2017-10-17 | 2018-02-02 | 江苏粤阜合金材料有限公司 | A kind of environment-friendly type aluminium melting furnace and its method of smelting |
| CN110455077A (en) * | 2019-09-11 | 2019-11-15 | 东莞市升华炉具设备有限公司 | Heat-conserving energy-saving multi formula melts reverberatory furnace |
| CN110887377A (en) * | 2019-12-04 | 2020-03-17 | 肇庆鸿立设备有限公司 | Aluminum alloy heat storage dispersion type smelting furnace |
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Addressee: Zhuhai New Vision Air Conditioning Equipment Co., Ltd. Document name: Notification of Publication of the Application for Invention |
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