CN105757977A - Environment-friendly and energy-saving hot-blast furnace and use method thereof - Google Patents
Environment-friendly and energy-saving hot-blast furnace and use method thereof Download PDFInfo
- Publication number
- CN105757977A CN105757977A CN201610261654.9A CN201610261654A CN105757977A CN 105757977 A CN105757977 A CN 105757977A CN 201610261654 A CN201610261654 A CN 201610261654A CN 105757977 A CN105757977 A CN 105757977A
- Authority
- CN
- China
- Prior art keywords
- wind
- heat exchanger
- combustor
- pipe heat
- energy saving
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
- F24H3/08—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
- F24H3/087—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes using fluid fuel
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B9/00—Preservation of edible seeds, e.g. cereals
- A23B9/08—Drying; Subsequent reconstitution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1877—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1881—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/02—Heating arrangements using combustion heating
-
- 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
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
Abstract
The invention relates to an environment-friendly and energy-saving hot-blast furnace. The hot-blast furnace comprises a spiral jet burner, a combustor, a tubular heat exchanger and a settling chamber. The combustor is sleeved with a rotary cold air protecting device, a cold air inlet is formed in one end of the rotary cold air protecting device, the other end of the rotary cold air protecting device is communicated with one end of a smoke box at the top of the tubular heat exchanger through a smoke pipe, and the bottom of the tubular heat exchanger is communicated with the settling chamber. An air mixing chamber is arranged on the outer side of the combustor, and an external circulating air protecting shell is arranged on the outer side of the tubular heat exchanger. Compared with the prior art, the hot-blast furnace has the advantages that as constructing is conducted without firebricks, production cost is greatly saved; the burning speed of pulverized coal is high, and burning is complete; the temperature in the combustor is effectively adjusted so that the combustor can not be damaged by burning; due to a high-temperature heat exchange area, heat exchanging efficiency is improved; heat exchanging efficiency is improved through the tubular heat exchanger; the temperature of smoke is gradually reduced to form settling, pollution of dust to atmosphere is reduced; as the combustor is arranged in the air mixing chamber, heat losses are reduced.
Description
Technical field
The present invention relates to cereal drying technology field, particularly to a kind of environmental protection and energy saving air stove and using method thereof.
Background technology
Air stove starts extensive use in late 1970s in China as the air stove of thermal power machinery, and it has become electric heat source and the regeneration product of conventional vapor power heat source in many industries.By long production practices, it has been realised that only utilize hot blast could improve heat utilization efficiency and hot working effect larger as medium and carrier.Tradition electric heat source and steam thermal power often configure multiple stage circulating fan in course of conveying, so as to finally still indirectly forming hot blast carries out operation of drying or heat.This process there will naturally be a large amount of waste energy and causes the shortcomings such as too much, the complex technical process of auxiliary device.And bigger problem is, this thermal source needs higher temperature to dry for that or toast the requirement of operation, then feel simply helpless.
The dry machine air stove of existing grain builds reflection combustion furnace by laying bricks or stones for conventional fire grate, its shortcoming be the portion of material such as big, the ground wind mixed chamber combustion arch of floor space with labour cost expend huge, engineering time long construction technology is numerous and diverse, each several part body of wall high temperature easily ftractures to cause and loses heat runout, and can not construct winter.A large amount of uses of refractory material so that stove is in initial combustion and follow-up sustained combustion process, and furnace lifting blowing out trivial operations, refractory material absorbs substantial amounts of heat, and hot blast heats up extremely slow, and heat loss is very big.Due to unburnt coal thermal-arrest manufacture high temperature difficulty thus with coal for fuel ubiquity efficiency of combustion low be approximately 55%～70% and burning after the low shortcoming being approximately 70%～80% of effective rate of utilization, for instance deslagging temperature is too high.The formation of grate-type air stove and pipe heat exchanger entirety cigarette is long, causes that heat is lost in a large number.And heat exchanger utilization rate is low, cause that exhaust gas temperature is too high.
The present invention has broken traditional combustion system, it does not have traditional fire grate deslagging and building by laying bricks or stones, changes the combustion rate of conventional boiler, makes combustion rate bring up to more than 95%.
Summary of the invention
It is an object of the invention to provide one and fuel is worn into powdery, spray into burner combustion with rotation direction burner, change the combustion rate of conventional boiler, make combustion rate bring up to environmental protection and energy saving air stove and the using method thereof of more than 95%.
For achieving the above object, the present invention realizes by the following technical solutions:
A kind of environmental protection and energy saving air stove; this air stove includes rotation direction burner, combustor, pipe heat exchanger and expansion chamber; rotary cooling wind protection device it is cased with outside described combustor; one end of swinging cold wind protection device is cold wind import; the other end is connected with the smoke box one end at pipe heat exchanger top by flue; it is connected with expansion chamber bottom pipe heat exchanger; the outside of combustor is provided with wind mixed chamber; being provided with outer circulation wind containment vessel outside pipe heat exchanger, wind mixed chamber is connected with outer circulation wind containment vessel.
Flue between described combustor and pipe heat exchanger is provided with high temperature heat transfer zone, and high temperature heat transfer zone is made up of multiple plate type heat exchange piece.
Described combustor and set swinging cold wind protection device between be provided with waterproof layer.
It is provided with multiple wind deflector between described swinging cold wind protection device and combustor.
Described pipe heat exchanger is made up of multiple double-spiral structure pipe heat exchangers, and double-spiral structure pipe heat exchanger has outside to be provided with external spiral sea whelk, and inner side is provided with inner screwy fin.
The diameter of described outer circulation wind containment vessel is more than the diameter of wind mixed chamber; one end of outer circulation wind containment vessel and wind mixed chamber junction is cold air inlet; wind enters in outer circulation wind containment vessel from cold air inlet, and chance of shuttling back and forth in the middle of pipe heat exchanger enters in wind mixed chamber behind high temperature heat transfer zone.
Silicate aluminum board heat-insulation layer it is provided with outside described wind mixed chamber.
One end of described combustor is filler opening, and the other end is flue gas opening, and filler opening diameter is more than flue gas opening diameter.
The diameter of the cold wind import of described swinging cold wind protection device is more than the diameter of flue connector.
The using method of a kind of environmental protection and energy saving air stove, comprises the following steps:
1) first coal dust or biologic grain powder being sprayed in combustor combustion, wherein combustor is outer is protected device cooling combustor by swinging cold wind, makes chamber temperature not higher than 600 DEG C；
2) flue gas enters in the pipe of pipe heat exchanger through high temperature heat transfer zone, the pipe of pipe heat exchanger is internal is helical structure, form flue gas rotational flow, after expansion chamber is further continued for entering in the pipe of pipe heat exchanger, finally introduce dust treatment via smoke suction machine finally to be discharged by chimney, manufacture heat；
3) cold wind is entered by the cold air inlet of outer circulation wind containment vessel; after smoke box and expansion chamber outer wall, enter the ligament of pipe heat exchanger, finally enter wind mixed chamber; two processes form heat exchange, eventually form clean hot blast and are sent into drying tower by hot-air blower.
Compared with prior art, the invention has the beneficial effects as follows:
One, full steel structure, without laying fireproof bricks, is greatly saved production cost.
Two, in combustor, coal dust directly burns, and owing to coal powder size is only small, outside hot blast is sent into, has hot blast to carry out combustion-supporting, it is achieved that the features such as coal dust firing speed is fast, thorough, the quick heating of burning, within 30 minutes, can reach output hot blast more than 100 DEG C.
Three, combustor is externally provided with swinging cold wind protection device, effectively have adjusted the indoor temperature of combustor so that it is be not burned, directly high-temperature hot-air can be mixed into wind mixed chamber again.
Four, high-temperature flue gas enters high temperature heat transfer zone after combustor, the plate type heat exchange piece of high temperature heat transfer zone is due to high temperature difference, efficient heat transfer medium and bigger heat transfer area combined effect, make this district's heat exchange efficiency significantly high, directly heat the leaving air temp of wind mixed chamber's hot blast, ensure that wind also ensure that while efficiently utilizing that oneself and next part heat exchanger are not burned out, heat is effectively swapped out.
Five, pipe heat exchanger is by the old-fashioned three groups times changing four groups of strokes adding flue gas and heat exchange into, substantially increases heat exchange efficiency.
Six, owing to flue-gas temperature is progressively lower, in the pipe of pipe heat exchanger, dust drop to expansion chamber, this combustion system, and efficiency of combustion is up to 95%, and decreases the entrance atmosphere pollution of dust.
Seven, this designed combustion room is in wind mixed chamber, effectively reduces the loss of heat, and swinging cold wind protection device reclaims all the other heats, and heat is lost minimum.
Accompanying drawing explanation
Fig. 1 is the structure chart of the present invention；
Fig. 2 is the flue gas trip map of the present invention；
Fig. 3 is the circulating cold air figure of the present invention.
1 wind mixed chamber 2 swinging cold wind protection device 3 combustor 4 flue 5 smoke box 6 outer circulation wind containment vessel 7 pipe heat exchanger 8 expansion chamber 9 high temperature heat transfer zone 10 cold air inlet 11 cold wind import 12 wind deflector 13 waterproof layer.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further illustrated:
As shown in Figure 1; a kind of environmental protection and energy saving air stove; this air stove includes rotation direction burner, combustor 3, pipe heat exchanger 7 and expansion chamber 8; rotary cooling wind protection device 2 it is cased with outside described combustor 3; one end of swinging cold wind protection device 2 is cold wind import 11; the other end is connected with smoke box 5 one end at pipe heat exchanger 7 top by flue 4; it is connected with expansion chamber 8 bottom pipe heat exchanger 7; the outside of combustor 3 is provided with mixed wind 1; being provided with outer circulation wind containment vessel 6 outside pipe heat exchanger 7, wind mixed chamber 1 is connected with outer circulation wind containment vessel 6.
Flue 4 between described combustor 3 and pipe heat exchanger 7 is provided with high temperature heat transfer zone 9, and high temperature heat transfer zone 9 is made up of multiple plate type heat exchange piece.
Described combustor 3 and set swinging cold wind protection device 2 between be provided with waterproof layer 13.
It is provided with multiple wind deflector 12 between described swinging cold wind protection device 2 and combustor 3.
Described pipe heat exchanger 7 is made up of multiple double-spiral structure pipe heat exchangers, and double-spiral structure pipe heat exchanger has outside to be provided with external spiral sea whelk, and inner side is provided with inner screwy fin.
The diameter of described outer circulation wind containment vessel 6 is more than the diameter of wind mixed chamber 1; one end of outer circulation wind containment vessel 6 and wind mixed chamber 1 junction is cold air inlet 10; wind enters in outer circulation wind containment vessel 6 from cold air inlet 10, and chance of shuttling back and forth in the middle of pipe heat exchanger 7 enters in wind mixed chamber 1 behind high temperature heat transfer zone 9.
It is provided with silicate aluminum board heat-insulation layer 13 outside described wind mixed chamber 1.
One end of described combustor 3 is filler opening, and the other end is flue gas opening, and filler opening diameter is more than flue gas opening diameter.
The diameter of the cold wind import 11 of described swinging cold wind protection device 2 is more than the diameter of flue connector.
As shown in Figures 2 and 3, the using method of a kind of environmental protection and energy saving air stove, comprise the following steps:
1) first coal dust or biologic grain powder being sprayed in combustor 3 combustion, wherein combustor 3 is outer is protected device 2 to cool down combustor 3 by swinging cold wind, makes combustor 3 temperature not higher than 600 DEG C；
2) flue gas enters in the pipe of pipe heat exchanger 7 through high temperature heat transfer zone 9, the pipe of pipe heat exchanger 7 is internal is helical structure, form flue gas rotational flow, after expansion chamber 8 is further continued for entering in the pipe of pipe heat exchanger 7, finally introduce dust treatment via smoke suction machine finally to be discharged by chimney, manufacture heat；
3) cold wind is entered by the cold air inlet 10 of outer circulation wind containment vessel 6; after smoke box 5 and expansion chamber 8 outer wall, enter the ligament of pipe heat exchanger 7, finally enter wind mixed chamber 1; two processes form heat exchange, eventually form clean hot blast and are sent into drying tower by hot-air blower.
Owing to being that coal dust or biologic grain powder are burnt by spraying the mode of combustion, and chamber temperature is not higher than 600 DEG C, therefore flue-gas temperature is progressively lower, in the pipe of pipe heat exchanger, dust drop to expansion chamber, this combustion system, efficiency of combustion is up to 95%, and decreases the entrance atmosphere pollution of dust.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (10)
1. an environmental protection and energy saving air stove; it is characterized in that; this air stove includes rotation direction burner, combustor, pipe heat exchanger and expansion chamber; rotary cooling wind protection device it is cased with outside described combustor; one end of swinging cold wind protection device is cold wind import; the other end is connected with the smoke box one end at pipe heat exchanger top by flue; it is connected with expansion chamber bottom pipe heat exchanger; the outside of combustor is provided with wind mixed chamber; being provided with outer circulation wind containment vessel outside pipe heat exchanger, wind mixed chamber is connected with outer circulation wind containment vessel.
2. a kind of environmental protection and energy saving air stove according to claim 1, it is characterised in that the flue between described combustor and pipe heat exchanger is provided with high temperature heat transfer zone, and high temperature heat transfer zone is made up of multiple plate type heat exchange piece.
3. a kind of environmental protection and energy saving air stove according to claim 1, it is characterised in that described combustor and set and be provided with waterproof layer between swinging cold wind protection device.
4. a kind of environmental protection and energy saving air stove according to claim 1, it is characterised in that be provided with multiple wind deflector between described swinging cold wind protection device and combustor.
5. a kind of environmental protection and energy saving air stove according to claim 1, it is characterised in that described pipe heat exchanger is made up of multiple double-spiral structure pipe heat exchangers, and double-spiral structure pipe heat exchanger has outside to be provided with external spiral sea whelk, and inner side is provided with inner screwy fin.
6. a kind of environmental protection and energy saving air stove according to claim 1; it is characterized in that; the diameter of described outer circulation wind containment vessel is more than the diameter of wind mixed chamber; one end of outer circulation wind containment vessel and wind mixed chamber junction is cold air inlet; wind enters in outer circulation wind containment vessel from cold air inlet, and chance of shuttling back and forth in the middle of pipe heat exchanger enters in wind mixed chamber behind high temperature heat transfer zone.
7. a kind of environmental protection and energy saving air stove according to claim 1, it is characterised in that be provided with silicate aluminum board heat-insulation layer outside described wind mixed chamber.
8. a kind of environmental protection and energy saving air stove according to claim 1, it is characterised in that one end of described combustor is filler opening, and the other end is flue gas opening, and filler opening diameter is more than flue gas opening diameter.
9. a kind of environmental protection and energy saving air stove according to claim 1, it is characterised in that the diameter of the cold wind import of described swinging cold wind protection device is more than the diameter of flue connector.
10. the using method of a kind of environmental protection and energy saving air stove according to claim 1, it is characterised in that comprise the following steps:
1) first coal dust or biologic grain powder being sprayed in combustor combustion, wherein combustor is outer is protected device cooling combustor by swinging cold wind, makes chamber temperature not higher than 600 DEG C；
2) flue gas enters in the pipe of pipe heat exchanger through high temperature heat transfer zone, the pipe of pipe heat exchanger is internal is helical structure, form flue gas rotational flow, after expansion chamber is further continued for entering in the pipe of pipe heat exchanger, finally introduce dust treatment via smoke suction machine finally to be discharged by chimney, manufacture heat；
3) cold wind is entered by the cold air inlet of outer circulation wind containment vessel; after smoke box and expansion chamber outer wall, enter the ligament of pipe heat exchanger, finally enter wind mixed chamber; two processes form heat exchange, eventually form clean hot blast and are sent into drying tower by hot-air blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610261654.9A CN105757977A (en) | 2016-04-22 | 2016-04-22 | Environment-friendly and energy-saving hot-blast furnace and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610261654.9A CN105757977A (en) | 2016-04-22 | 2016-04-22 | Environment-friendly and energy-saving hot-blast furnace and use method thereof |
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| CN105757977A true CN105757977A (en) | 2016-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610261654.9A Pending CN105757977A (en) | 2016-04-22 | 2016-04-22 | Environment-friendly and energy-saving hot-blast furnace and use method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958990A (en) * | 2017-04-20 | 2017-07-18 | 眉山市民威林产制品有限公司 | A kind of waste heat slow descending device and method for improving mosquito-repellent incense quality |
| CN107062878A (en) * | 2017-02-27 | 2017-08-18 | 山东沃普农业装备科技有限公司 | A kind of movable grain drying machine heat circulating system and its control method |
| CN107741012A (en) * | 2017-11-21 | 2018-02-27 | 福建海川塑胶有限公司 | Circulating gas heating equipment in integral type |
| CN108278887A (en) * | 2018-04-13 | 2018-07-13 | 广州市浩燃机电设备有限公司 | A kind of synthetic leather production combustion gas indirect type low-temperature heat equipment |
| CN108344287A (en) * | 2018-02-13 | 2018-07-31 | 国家粮食局科学研究院 | A kind of energy-saving and environment-friendly scale grain heat-drying complexes and furnace drying method |
| CN108426447A (en) * | 2018-04-13 | 2018-08-21 | 广州市浩燃机电设备有限公司 | The tubular type heating equipment of cooling is forced in a kind of synthetic leather production with combustion gas direct-type |
| CN109059278A (en) * | 2018-10-17 | 2018-12-21 | 山东日科化学股份有限公司 | A kind of indirect hot air stove |
| CN110332816A (en) * | 2019-08-05 | 2019-10-15 | 中冶赛迪技术研究中心有限公司 | A kind of horizontal chilling sedimentation device of flue gas of electric furnace and its process flow |
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| US6588350B1 (en) * | 2002-02-05 | 2003-07-08 | Keystoker Inc. | Automatic coal stoker with increased sensible heat outflow |
| CN201193876Y (en) * | 2008-03-14 | 2009-02-11 | 朱友良 | Jet flow radiation central strile-back heat pipe hot air stove |
| CN103697587A (en) * | 2013-11-29 | 2014-04-02 | 山西新聚星锅炉有限公司 | Indirect fuel-gas hot-air boiler |
| CN103697584A (en) * | 2013-11-29 | 2014-04-02 | 山西新聚星锅炉有限公司 | Full-automatic direct gas-fired hot blast heating furnace |
| CN205606894U (en) * | 2016-04-22 | 2016-09-28 | 铁岭鑫鹏机械厂 | Environmental protection and energy saving hot -blast furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6588350B1 (en) * | 2002-02-05 | 2003-07-08 | Keystoker Inc. | Automatic coal stoker with increased sensible heat outflow |
| CN201193876Y (en) * | 2008-03-14 | 2009-02-11 | 朱友良 | Jet flow radiation central strile-back heat pipe hot air stove |
| CN103697587A (en) * | 2013-11-29 | 2014-04-02 | 山西新聚星锅炉有限公司 | Indirect fuel-gas hot-air boiler |
| CN103697584A (en) * | 2013-11-29 | 2014-04-02 | 山西新聚星锅炉有限公司 | Full-automatic direct gas-fired hot blast heating furnace |
| CN205606894U (en) * | 2016-04-22 | 2016-09-28 | 铁岭鑫鹏机械厂 | Environmental protection and energy saving hot -blast furnace |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107062878A (en) * | 2017-02-27 | 2017-08-18 | 山东沃普农业装备科技有限公司 | A kind of movable grain drying machine heat circulating system and its control method |
| CN106958990A (en) * | 2017-04-20 | 2017-07-18 | 眉山市民威林产制品有限公司 | A kind of waste heat slow descending device and method for improving mosquito-repellent incense quality |
| CN107741012A (en) * | 2017-11-21 | 2018-02-27 | 福建海川塑胶有限公司 | Circulating gas heating equipment in integral type |
| CN108344287A (en) * | 2018-02-13 | 2018-07-31 | 国家粮食局科学研究院 | A kind of energy-saving and environment-friendly scale grain heat-drying complexes and furnace drying method |
| CN108344287B (en) * | 2018-02-13 | 2023-11-10 | 国家粮食局科学研究院 | Energy-saving and environment-friendly large-scale grain drying complete device and drying method |
| CN108278887A (en) * | 2018-04-13 | 2018-07-13 | 广州市浩燃机电设备有限公司 | A kind of synthetic leather production combustion gas indirect type low-temperature heat equipment |
| CN108426447A (en) * | 2018-04-13 | 2018-08-21 | 广州市浩燃机电设备有限公司 | The tubular type heating equipment of cooling is forced in a kind of synthetic leather production with combustion gas direct-type |
| CN109059278A (en) * | 2018-10-17 | 2018-12-21 | 山东日科化学股份有限公司 | A kind of indirect hot air stove |
| CN110332816A (en) * | 2019-08-05 | 2019-10-15 | 中冶赛迪技术研究中心有限公司 | A kind of horizontal chilling sedimentation device of flue gas of electric furnace and its process flow |
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Application publication date: 20160713 |