CN205448679U - Aluminium stove is melted in small -size waste heat recovery energy -conservation - Google Patents
Aluminium stove is melted in small -size waste heat recovery energy -conservation Download PDFInfo
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- CN205448679U CN205448679U CN201520793907.8U CN201520793907U CN205448679U CN 205448679 U CN205448679 U CN 205448679U CN 201520793907 U CN201520793907 U CN 201520793907U CN 205448679 U CN205448679 U CN 205448679U
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- Prior art keywords
- flue gas
- air
- combustion
- hybrid chamber
- melting furnace
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
-
- 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
-
- 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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
The utility model discloses an aluminium stove is melted in small -size waste heat recovery energy -conservation, the induction cooker comprises a cooker bod, installation fume emission pipe and combustor on the furnace body, set up heat transfer device on the fume emission pipe, last air inlet and the air outlet of setting up of heat transfer device, the air outlet passes through the first entry linkage in air transportation pipe and the blender, the second entrance in the blender is connected with the one end of flue gas induction pipe, the other end and the fume emission pipe or furnace of flue gas induction pipe are connected, the blender is connected with the combustor. The beneficial effects of the utility model are that: the combustion -supporting gas make full use of of high temperature hypoxemia the waste heat of flue gas, do not need extra heat source to heat it, concrete good energy -conserving effect, simultaneously because the characteristic of combustion -supporting gas high temperature hypoxemia, nitrogen oxide's content in combustion -supporting in -process can effectively reduce burning back flue gas, the feature of environmental protection can be better, simple structure in addition, can to the flue gas waste heat carry out high efficiency utilization, good energy -conserving environmental protection effect has.
Description
[technical field]
This utility model relates to aluminium melting furnace field, a kind of small-sized waste heat recovering energy conserving aluminium melting furnace with excellent effects of energy saving and emission reduction.
[background technology]
Aluminum and aluminum alloy smelting furnace (abbreviation aluminium melting furnace) are the equipment that aluminum processing founding industry is the most frequently used, its fusion process is also the aluminum processing industry energy and the production link of material consumption maximum, and the structure design of aluminium melting furnace is directly connected to utilization ratio and the environmental-protecting performance of the energy.Large-scale aluminium melting furnace has been generally designed more complete environment protecting power economizer, and small-sized aluminium melting furnace does not the most design environment protecting power economizer owing to being limited by the factor major part such as manufacturing cost, utilization rate of waste heat, part devises the small-sized aluminium melting furnace of environment protecting power economizer and there is also the drawback that unit efficiency is low, maintenance cost is high, causes the universal high energy consumption of small-sized aluminium melting furnace and the problem of high pollution.
The Chinese utility model patent application of Application No. CN201410133902.2 discloses a kind of simple aluminium melting furnace, it includes body of heater and base, fixing post it is provided with on described body of heater, described base is arranged on below body of heater, and support bar one end and fixing post upper gap coordinate rotation, and the other end and connecting plate are fixed, bell is welded on connecting plate lower end, regulation is being welded on support bar, and described lower portion of furnace body is provided with discharge nozzle, and described discharge nozzle is provided with regulation valve.Although this application simplifies the process uncapping and closing lid, can scatter and disappear by the heat in a certain degree of minimizing aluminium melting furnace, but effects of energy saving and emission reduction is very little in fact, does not have the highest practical significance.
The Chinese utility model patent application of Application No. CN200410041667.2 discloses a kind of circular environmental protection energy-saving aluminium melting furnace, it includes body of heater, burner assembly, heat-exchanger rig, dust arrester and connecting line, valve, described body of heater includes column type furnace wall, baking type furnace roof, furnace bottom, aluminum solid feed inlet, the outlet of aluminum liquid and high-temperature flue gas export, burner assembly is connected on furnace wall, the outlet of aluminum liquid is arranged on the downside of furnace wall, high-temperature flue gas outlet is arranged on aluminum solid feed inlet sidewall, it is connected with heat-exchanger rig, heat-exchanger rig is connected with dust arrester, it is characterized in that aluminum solid feed inlet is arranged in the middle of baking type furnace roof 5.Although this application devises heat-exchanger rig and utilizes the waste heat of flue gas, but its multitube distance horizontal shell and tube heat-exchanger rig structure used is more complicated, and manufacturing cost is high and is unfavorable for the maintenance of equipment.
It addition, do not utilize fume afterheat in above-mentioned patent application, its combustion-supporting gas also processes to reduce the content of discharge nitrogen oxides of exhaust gas without hypoxia.
[utility model content]
The purpose of this utility model is the deficiency overcoming above-mentioned existing small-sized aluminium melting furnace to exist, a kind of structure is proposed simpler, easily fabricated, operation and maintenance, simultaneously high to the utilization ratio of fume afterheat, small-sized waste heat recovering energy conserving aluminium melting furnace that the amount of nitrogen oxides of the waste gas of discharge is low.
To achieve these goals, this utility model is achieved in that small-sized waste heat recovering energy conserving aluminium melting furnace, including body of heater, smoke discharge pipe and burner are installed on described body of heater, on described smoke discharge pipe, heat-exchanger rig is set, air intake and air outlet slit are set on described heat-exchanger rig, described air outlet slit is connected with the first entrance in blender by air delivery pipe, the second entrance in described blender is connected with one end of flue gas ingress pipe, and the other end of described flue gas ingress pipe is connected with smoke discharge pipe or burner hearth；Described blender is connected with burner, is used for providing combustion air.
Described heat-exchanger rig includes casing, the some air leading-in conduits being arranged in described casing and heat exchange tube, described air leading-in conduit is placed in described heat exchange sleeve, forming heat exchanging interlayer between air leading-in conduit lateral wall and described heat exchange sleeve medial wall, described air leading-in conduit arranges some through holes on the sidewall of part in described heat exchange sleeve.
Described casing arranges smoke inlet and exhanst gas outlet, is used for importing heat smoke, and described heat exchange sleeve is placed in the exhaust gases passes in described casing.Being provided with air distribution cavity on described casing, described air distribution cavity is connected with one end of air leading-in conduit, is distributed to by air in each air leading-in conduit.Arranging air trapping output cavity in described air distribution cavity lower end, described air trapping output cavity is connected with the outlet of described heat exchange sleeve and communicates, described air trapping output cavity will in heat exchanging interlayer heated air, then export.
Described blender, including hybrid chamber, combustion air inlet and flue gas introducing port, described combustion air inlet stretches in hybrid chamber, and described flue gas introducing port is connected with hybrid chamber and communicates；Equal pomphus it is fixed with in hybrid chamber, described hybrid chamber is divided into Lead-In Area and discharge area, arranging some ventholes, high-temperature flue gas and preheated air on described equal pomphus and export discharge in discharge area by venthole after the Lead-In Area of hybrid chamber mixes, mixing is more uniformly distributed.
Described blender, included hybrid chamber, combustion air inlet and flue gas introducing port, in hybrid chamber, it is fixed with described equal pomphus, described equal pomphus is provided for the air outlet slit being connected with combustion air inlet and the venthole being distributed on equal pomphus；Described combustion air inlet stretches into and is connected with air outlet slit in hybrid chamber, and described flue gas introducing port is connected with hybrid chamber and communicates；Described hybrid chamber is divided into Lead-In Area and discharge area by described equal pomphus, and high-temperature flue gas exports discharge area by venthole after the Lead-In Area of hybrid chamber mixes and mixes with preheated air, then by burning in burner input port input burner.
Arranging in described burner input port and narrow nozzle, raising combustion air pressure, combustion-supporting gas burns in entering the body of heater of aluminium melting furnace by the nozzle passing through to narrow after mix homogeneously after the ring baffle of porous.The ring baffle of porous can make combustion gas and combustion-supporting gas mix more uniform, and efficiency of combustion is higher.
Described flue gas introducing port is perpendicular to described combustion air inlet, and air so can be made more uniform.
Described equal pomphus can be toroidal membrane, and venthole thereon is 6～15, and aperture is 80～100mm.This structure can be combustion gas and combustion-supporting gas mixes more uniform, burning in hgher efficiency.
Hot-air accounts for the 12-45% of flue gas and the mixing combustion air total amount of hot-air composition.
Compared with prior art, the beneficial effects of the utility model are: the combustion-supporting gas of high-temperature low-oxygen takes full advantage of the waste heat of flue gas, it is not necessary to it is heated by extra thermal source, the best energy-saving effect；Simultaneously because the characteristic of combustion-supporting gas high-temperature low-oxygen, can effectively reduce the content of nitrogen oxides in effluent after burning during combustion-supporting, environmental-protecting performance is more excellent；Additionally simple in construction, efficiently can utilize fume afterheat, has good effects of energy conservation and environmental protection.
[accompanying drawing explanation]
Fig. 1 is the overall structure schematic diagram of this utility model small-sized waste heat recovering energy conserving aluminium melting furnace；
Fig. 2 is the blender in this utility model small-sized waste heat recovering energy conserving aluminium melting furnace and connecting structure for combustor schematic diagram；
Fig. 3 is the structural representation of the blender in this utility model small-sized waste heat recovering energy conserving aluminium melting furnace；
Fig. 4 is the structural representation of the heat-exchanger rig in this utility model small-sized waste heat recovering energy conserving aluminium melting furnace；
Fig. 5 is the structural representation of the equal pomphus in this utility model small-sized waste heat recovering energy conserving aluminium melting furnace.
[detailed description of the invention]
Below in conjunction with the drawings and specific embodiments, this utility model is described in detail explanation.
Small-sized waste heat recovering energy conserving aluminium melting furnace, as shown in Figure 1, including body of heater 1, smoke discharge pipe and burner 2 are installed on described body of heater 1, on described smoke discharge pipe 27, heat-exchanger rig 3 is set, air intake 7 and air outlet slit 28 are set on described heat-exchanger rig 3, described air outlet slit 28 is connected with the first entrance in blender 4 by air delivery pipe, the second entrance in described blender 4 is connected with one end of flue gas ingress pipe 5, and the other end of described flue gas ingress pipe 5 is connected with smoke discharge pipe 27 or burner hearth；Described blender 4 is connected with burner 2, is used for providing combustion air.The when of aluminium melting furnace work, fuel burns in body of heater 1, and the aluminium in body of heater 1 is heated to molten condition, flue gas is discharged from smoke discharge pipe 27, wherein most high-temperature flue gas is entered heat-exchanger rig 3 by smoke discharge pipe 27 and is discharged by exhanst gas outlet 9, room temperature air then enter heat-exchanger rig 3 by air intake 7, heat exchange is carried out with high-temperature flue gas in heat-exchanger rig 3, utilize the flue gas of high temperature to preheat the combustion air of room temperature, making its temperature reach 260 DEG C, preheated air enters blender 4 by air outlet slit 28 through pipeline.The flue gas of the high-temperature low-oxygen of part body of heater 1 is entered by flue gas ingress pipe 5 and delivers to after blender 4 is sufficiently mixed with preheated air participate in combustion-supporting and burning in burner 2.Wherein, the first valve 10 is set, for regulating the air content entered in burner 2 between described blender 4 and burner 2.Second valve 8 is set on described air delivery pipe, for regulating the amount of hot-air in blender 4 that enters.On described flue gas ingress pipe, the 3rd valve 6 is set, for regulating the amount of flue gas in blender 4 that enters.By regulating the second valve 8 and the 3rd valve 6, hot-air and the ratio of flue gas in entrance blender can be regulated.Preferably, hot-air accounts for the 12-45% of flue gas and the mixing combustion air total amount of hot-air composition.Preferably, described hot-air accounts for the 21% of the flue gas mixing combustion air total amount with hot-air composition, so can accomplish anoxia high-temp combustion, reduces the discharge of nitrogen oxides to the full extent, and efficiency of combustion is high, discharges pollutants low.
Described heat-exchanger rig 3 is as shown in Figure 4, including casing 31, it is arranged on the some air leading-in conduits 21 in described casing 31 and heat exchange tube 22, described air leading-in conduit 21 is placed in described heat exchange sleeve 22, forming heat exchanging interlayer between air leading-in conduit 21 lateral wall and described heat exchange sleeve 22 medial wall, described air leading-in conduit 21 arranges some through holes 211 on the sidewall of part in described heat exchange sleeve 22.Air can form eddy current in heat exchanging interlayer, substantially increases heat exchange efficiency, and its simple in construction is easily maintained.Described casing 31 arranges smoke inlet 25 and exhanst gas outlet 26, is used for importing heat smoke, and described heat exchange sleeve 22 is placed in the exhaust gases passes in described casing 31.Being provided with air distribution cavity 23 on described casing 31, described air distribution cavity 23 is connected with one end of air leading-in conduit 21, is distributed to by air in each air leading-in conduit 21.Arrange air trapping output cavity 24 in described air distribution cavity 23 lower end, described air trapping output cavity 24 is connected with the outlet of described heat exchange sleeve 22 and communicates, described air trapping output cavity 24 will in heat exchanging interlayer heated air, then export.
Described blender, as shown in Figure 3 and Figure 5, including hybrid chamber 13, combustion air inlet 15 and flue gas introducing port 16, described combustion air inlet 15 stretches in hybrid chamber 13, and described flue gas introducing port 16 is connected with hybrid chamber 13 and communicates；Equal pomphus 18 it is fixed with in hybrid chamber 13, described hybrid chamber 13 is divided into Lead-In Area 17 and discharge area 19, described equal pomphus 18 arranges some ventholes 12, high-temperature flue gas and preheated air are exported in discharge area 19 by venthole 12 after the Lead-In Area 17 of hybrid chamber mixes and discharge, and mixing is more uniformly distributed.
Described blender, as shown in Figure 2, included hybrid chamber 13, combustion air inlet 15 and flue gas introducing port 16, be fixed with described equal pomphus 18 in hybrid chamber 13, described equal pomphus 18 be provided for the air outlet slit being connected with combustion air inlet and the venthole 12 being distributed on equal pomphus；Described combustion air inlet 15 is connected with air outlet slit in stretching into hybrid chamber 13, and described flue gas introducing port 16 is connected with hybrid chamber 13 and communicates；Described hybrid chamber is divided into Lead-In Area 17 and discharge area 19 by described equal pomphus 18, high-temperature flue gas is mixed with preheated air to discharge area 19 by venthole 12 output after the Lead-In Area 17 of hybrid chamber mixes, and burns in then inputting burner 2 by burner input port 13.Arranging in described burner input port 14 and narrow nozzle, raising combustion air pressure, combustion-supporting gas burns in entering the body of heater 1 of aluminium melting furnace by the nozzle passing through to narrow after mix homogeneously after the ring baffle 18 of porous.The ring baffle of porous can make combustion gas and combustion-supporting gas mix more uniform, and efficiency of combustion is higher.
The high-temperature flue gas of up to 1200 DEG C-1500 DEG C of aluminium melting furnace discharge enters the casing of heat-exchanger rig 3 by pipeline, the air of room temperature then enters the interlayer between air leading-in conduit 21 and described heat exchange sleeve 22 by the through hole of air leading-in conduit 21 and is heated, air carries out heat exchange at the wall of described heat exchange sleeve 22 with the high-temperature flue gas in casing, utilize the flue gas of high temperature to preheat the combustion air to 260 DEG C of room temperature, preheated air enters blender 4 by pipeline and directly mixes with high-temperature flue gas, forming temperature is that 600-900 DEG C of mixing combustion air input burner carries out high temperature burning with then mixing.The best energy-saving effect；Simultaneously because the characteristic of combustion-supporting gas high-temperature low-oxygen, can effectively reduce the content of nitrogen oxides in effluent after burning during combustion-supporting, environmental-protecting performance is more excellent；Additionally simple in construction, efficiently can utilize fume afterheat, has good effects of energy conservation and environmental protection.
Preferred embodiment of the present utility model described in detail above, it will be appreciated that the ordinary skill of this area just can make many modifications and variations according to design of the present utility model without creative work.Therefore, all technical staff in the art conceive by logical analysis, reasoning or according to the limited available technical scheme of experiment on the basis of prior art according to this utility model, all should be among by protection domain determined by the claims.
Claims (9)
- The combustion-supporting energy-saving aluminium-melting furnace of the most small-sized flue gas, including body of heater, it is characterized in that, smoke discharge pipe and burner are installed on described body of heater, arranging heat-exchanger rig on described smoke discharge pipe, described heat-exchanger rig arranges air intake and air outlet slit, described air outlet slit is connected with the first entrance in blender by air delivery pipe, the second entrance in described blender is connected with one end of flue gas ingress pipe, and the other end of described flue gas ingress pipe is connected with smoke discharge pipe or burner hearth；Described blender is connected with burner.
- 2. according to the combustion-supporting energy-saving aluminium-melting furnace of small-sized flue gas described in claim 1, it is characterized in that, described heat-exchanger rig includes casing, the some air leading-in conduits being arranged in described casing and heat exchange tube, described air leading-in conduit is placed in described heat exchange sleeve, forming heat exchanging interlayer between air leading-in conduit lateral wall and described heat exchange sleeve medial wall, described air leading-in conduit arranges some through holes on the sidewall of part in described heat exchange sleeve.
- 3., according to the combustion-supporting energy-saving aluminium-melting furnace of small-sized flue gas described in claim 2, it is characterised in that described casing arranges smoke inlet and exhanst gas outlet, described heat exchange sleeve is placed in the exhaust gases passes in described casing；Being provided with air distribution cavity on described casing, described air distribution cavity is connected with one end of air leading-in conduit；Arranging air trapping output cavity in described air distribution cavity lower end, described air trapping output cavity is connected with the outlet of described heat exchange sleeve and communicates.
- 4. according to the combustion-supporting energy-saving aluminium-melting furnace of small-sized flue gas described in claim 1, it is characterized in that, described blender, including hybrid chamber, combustion air inlet and flue gas introducing port, described combustion air inlet stretches in hybrid chamber, and described flue gas introducing port is connected with hybrid chamber and communicates；In hybrid chamber, it is fixed with equal pomphus, described hybrid chamber is divided into Lead-In Area and discharge area, described equal pomphus arranges some ventholes, high-temperature flue gas and preheated air after the Lead-In Area of hybrid chamber mixes, exports discharge in discharge area by venthole.
- 5. according to the combustion-supporting energy-saving aluminium-melting furnace of small-sized flue gas described in claim 1, it is characterized in that, described blender, included hybrid chamber, combustion air inlet and flue gas introducing port, in hybrid chamber, it is fixed with described equal pomphus, described equal pomphus is provided for the air outlet slit being connected with combustion air inlet and the venthole being distributed on equal pomphus；Described combustion air inlet stretches into and is connected with air outlet slit in hybrid chamber, and described flue gas introducing port is connected with hybrid chamber and communicates；Described hybrid chamber is divided into Lead-In Area and discharge area by described equal pomphus, and high-temperature flue gas exports discharge area by venthole after the Lead-In Area of hybrid chamber mixes and mixes with preheated air, then by burning in burner input port input burner.
- 6. according to the combustion-supporting energy-saving aluminium-melting furnace of small-sized flue gas described in claim 4 or 5, it is characterized in that, arranging in described burner input port and narrow nozzle, combustion-supporting gas by entering the interior burning of body of heater of aluminium melting furnace by the nozzle narrowed after mix homogeneously after the ring baffle of porous.
- 7. according to the combustion-supporting energy-saving aluminium-melting furnace of small-sized flue gas described in claim 6, it is characterised in that described flue gas introducing port is perpendicular to described combustion air inlet.
- 8. according to the combustion-supporting energy-saving aluminium-melting furnace of small-sized flue gas described in claim 6, it is characterised in that described equal pomphus is toroidal membrane, venthole thereon is 6～15, and aperture is 80～100mm.
- 9. according to the combustion-supporting energy-saving aluminium-melting furnace of small-sized flue gas described in claim 1, it is characterised in that hot-air accounts for the 12-45% of flue gas and the mixing combustion air total amount of hot-air composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520793907.8U CN205448679U (en) | 2015-10-12 | 2015-10-12 | Aluminium stove is melted in small -size waste heat recovery energy -conservation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520793907.8U CN205448679U (en) | 2015-10-12 | 2015-10-12 | Aluminium stove is melted in small -size waste heat recovery energy -conservation |
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| CN205448679U true CN205448679U (en) | 2016-08-10 |
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| CN201520793907.8U Expired - Fee Related CN205448679U (en) | 2015-10-12 | 2015-10-12 | Aluminium stove is melted in small -size waste heat recovery energy -conservation |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222585A (en) * | 2015-10-12 | 2016-01-06 | 广东工业大学 | The combustion-supporting energy-saving aluminium-melting furnace of small-sized flue gas |
| CN106123615A (en) * | 2016-08-12 | 2016-11-16 | 无锡欧玛森远洋工程设备有限公司 | A kind of waste heat recovery apparatus of heating furnace |
| CN106907928A (en) * | 2017-03-01 | 2017-06-30 | 无锡英航冶金设备科技有限公司 | One kind smelts furnace system |
| CN108036653A (en) * | 2017-12-08 | 2018-05-15 | 四川省川东铸石有限责任公司 | A kind of energy-saving and environment-friendly cast stone production smoke circulating system |
| CN109028929A (en) * | 2018-06-29 | 2018-12-18 | 攀钢集团研究院有限公司 | Expansion drying afterheat recycling system in titanium white production |
| CN112816620A (en) * | 2020-12-31 | 2021-05-18 | 杭州谱育科技发展有限公司 | Gas concentration adjusting device and method |
-
2015
- 2015-10-12 CN CN201520793907.8U patent/CN205448679U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222585A (en) * | 2015-10-12 | 2016-01-06 | 广东工业大学 | The combustion-supporting energy-saving aluminium-melting furnace of small-sized flue gas |
| CN106123615A (en) * | 2016-08-12 | 2016-11-16 | 无锡欧玛森远洋工程设备有限公司 | A kind of waste heat recovery apparatus of heating furnace |
| CN106907928A (en) * | 2017-03-01 | 2017-06-30 | 无锡英航冶金设备科技有限公司 | One kind smelts furnace system |
| CN106907928B (en) * | 2017-03-01 | 2019-08-16 | 无锡英航冶金设备科技有限公司 | A kind of smelting furnace system |
| CN108036653A (en) * | 2017-12-08 | 2018-05-15 | 四川省川东铸石有限责任公司 | A kind of energy-saving and environment-friendly cast stone production smoke circulating system |
| CN109028929A (en) * | 2018-06-29 | 2018-12-18 | 攀钢集团研究院有限公司 | Expansion drying afterheat recycling system in titanium white production |
| CN112816620A (en) * | 2020-12-31 | 2021-05-18 | 杭州谱育科技发展有限公司 | Gas concentration adjusting device and method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20181012 |