CN205606894U - Environmental protection and energy saving hot -blast furnace - Google Patents
Environmental protection and energy saving hot -blast furnace Download PDFInfo
- Publication number
- CN205606894U CN205606894U CN201620355157.0U CN201620355157U CN205606894U CN 205606894 U CN205606894 U CN 205606894U CN 201620355157 U CN201620355157 U CN 201620355157U CN 205606894 U CN205606894 U CN 205606894U
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- China
- Prior art keywords
- wind
- heat exchanger
- energy saving
- environmental protection
- combustor
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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
- 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
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to an environmental protection and energy saving hot -blast furnace, this hot -blast furnace be including revolving to fuel nozzle, combustion chamber, tubular heat exchanger and deposit room, the outside cover in combustion chamber has rotation cold wind protection device, and rotation cold wind protection device's one end is linked together with the smoke box one end at tubular heat exchanger top through flue gas pipeline for cold wind import, the other end, and the tubular heat exchanger bottom is linked together with the deposit room, and the outside of combustion chamber is equipped with wind mixing chamber, and the tubular heat exchanger outside is equipped with extrinsic cycle wind protective housing. Compared with the prior art, the beneficial effects of the utility model are that: one, the resistant firebrick of nothing builds by laying bricks or stones and has saved manufacturing cost greatly. Two, realize characteristics such as pulverized coal combustion is fast, the burning is thorough. Three, the indoor temperature of effectual regulation combustion chamber makes it do not not burnt out. Four, heat exchange efficiency has been improved in high temperature heat transfer district. Five, tubular heat exchanger has improved heat exchange efficiency. Six, the flue -gas temperature is gradually hanged down to form to subside and is reduced the dust pollution atmosphere. Seven, thermal loss is reduced to the combustion chamber in wind mixing chamber.
Description
Technical field
This utility model relates to cereal drying technology field, particularly to a kind of environmental protection and energy saving air stove.
Background technology
Air stove starts extensively to apply in China in late 1970s as the air stove of thermal power machinery, and it is at many row
Electric heat source and the regeneration product of conventional vapor power heat source were already become.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 heat
Power often configures multiple stage circulating fan in course of conveying, is allowed to finally still indirectly form hot blast and 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 it is bigger
Problem is, this thermal source needs higher temperature to be dried 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, and its shortcoming is that floor space is big, the burning of ground wind mixed chamber
The portion of material such as arch and labour cost expend huge, engineering time long construction technology is numerous and diverse, each several part body of wall high temperature easily ftractures and causes
Lose 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
In, furnace lifting blowing out trivial operations, refractory material absorbs substantial amounts of heat, and hot blast heats up extremely slow, and heat loss is the biggest.Due to not
The coal thermal-arrest of after-flame manufacture high temperature difficulty thus with coal for fuel generally exist efficiency of combustion low be about 55%～70% and burning after
The low shortcoming of about 70%～80% of effective rate of utilization, such as deslagging temperature is too high.Grate-type air stove and pipe heat exchanger are whole
The formation of body cigarette is long, causes heat to be lost in a large number.And heat exchanger utilization rate is low, cause exhaust gas temperature too high.
This utility model has broken traditional combustion system, without traditional fire grate deslagging and building by laying bricks or stones, changes conventional boiler
Combustion rate, makes combustion rate bring up to more than 95%.
Summary of the invention
The purpose of this utility model is to provide one that fuel is worn into powdery, sprays into burner combustion with rotation direction burner, changes
The combustion rate of conventional boiler, makes the combustion rate bring up to the environmental protection and energy saving air stove of more than 95%.
For achieving the above object, this utility model 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, described
Being cased with rotary cooling wind protection device outside combustor, one end of swinging cold wind protection device is cold wind import, and the other end passes through
Flue is connected with the smoke box one end at pipe heat exchanger top, is connected with expansion chamber bottom pipe heat exchanger, combustor
Outside is provided with wind mixed chamber, is provided with outer circulation wind containment vessel outside pipe heat exchanger, and 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 board-like is changed by multiple
Backing forms.
Described combustor and set and be provided with waterproof layer between swinging cold wind protection device.
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, inner side is provided with inner screwy fin.
The diameter of described outer circulation wind containment vessel is more than one end of the diameter of wind mixed chamber, outer circulation wind containment vessel and wind mixed chamber junction
For cold air inlet, wind enters in outer circulation wind containment vessel from cold air inlet, chance of shuttling back and forth in the middle of pipe heat exchanger high temperature heat transfer zone
After enter in wind mixed chamber.
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.
Compared with prior art, the beneficial effects of the utility model are:
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 the least, outside hot blast is sent into, has hot blast to carry out combustion-supporting,
Achieve the features such as fast, thorough, the quick heating of burning of coal dust firing speed, within 30 minutes, can reach to export 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 do not burnt
Bad, 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, and the plate type heat exchange piece of high temperature heat transfer zone is due to high temperature difference, height
Effect heat transfer medium and bigger heat transfer area act on jointly so that this district's heat exchange efficiency is the highest, directly heats going out of wind mixed chamber's hot blast
Air temperature, it is ensured that wind also ensure that while efficiently utilizing that oneself and next part heat exchanger are not burned out, and heat is by effectively
Swap out.
Five, pipe heat exchanger is changed into four groups of strokes adding flue gas and the time of heat exchange by old-fashioned three groups, substantially increases and changes
The thermal efficiency.
Six, progressively lower due to flue-gas temperature, in the pipe of pipe heat exchanger, dust drop to expansion chamber, this combustion system, burning effect
Rate 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 remaining
Heat, heat is lost minimum.
Accompanying drawing explanation
Fig. 1 is structure chart of the present utility model；
Fig. 2 is flue gas trip map of the present utility model；
Fig. 3 is circulating cold air figure of the present utility model.
Swinging cold wind protection device 3 combustor 4 flue 5 smoke box 6 outer circulation of 1 wind mixed chamber 2
The heat transfer zone 10 cold air inlet 11 cold wind import of wind containment vessel 7 pipe heat exchanger 8 expansion chamber 9 high temperature
12 wind deflector 13 waterproof layers.
Detailed description of the invention
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is further illustrated:
As it is 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
With expansion chamber 8, described combustor 3 is outside is cased with rotary cooling wind protection device 2, and 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, pipe heat exchanger
Being connected with expansion chamber 8 bottom 7, the outside of combustor 3 is provided with mixed wind 1, is provided with the protection of outer circulation wind outside pipe heat exchanger 7
Shell 6, 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, high temperature heat transfer zone 9 by
Multiple plate type heat exchange piece form.
Described combustor 3 and set and be provided with waterproof layer 13 between swinging cold wind protection device 2.
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 set
Having external spiral sea whelk, 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, and outer circulation wind containment vessel 6 is connected with wind mixed chamber 1
The one end at place is cold air inlet 10, and wind enters in outer circulation wind containment vessel 6 from cold air inlet 10, in pipe heat exchanger 7
Between shuttle back and forth chance high temperature heat transfer zone 9 after enter in wind mixed chamber 1.
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, using method of the present utility model, comprise the following steps:
1) first coal dust or biologic grain powder spraying in combustor 3 combustion, wherein combustor 3 is outer by swinging cold wind protection device
2 cooling combustor 3, make combustor 3 temperature be not higher than 600 DEG C；
2) flue gas is in high temperature heat transfer zone 9 enters the pipe of pipe heat exchanger 7, and 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 draw via smoke suction machine
Enter dust treatment 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,
Entering the ligament of pipe heat exchanger 7, finally enter wind mixed chamber 1, two processes form heat exchange, eventually form clean heat
Wind is sent into drying tower by hot-air blower.
Owing to being coal dust or biologic grain powder to be burnt by the way of spray is fired, and chamber temperature is not higher than 600 DEG C,
Therefore flue-gas temperature is progressively lower, and in the pipe of pipe heat exchanger, dust drop to expansion chamber, this combustion system, and efficiency of combustion is up to 95%,
And decrease the entrance atmosphere pollution of dust.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this area
For technical staff, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, institute
Any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (9)
1. an environmental protection and energy saving air stove, it is characterised in that this air stove includes rotation direction burner, combustor, pipe heat exchanger
And expansion chamber, it being cased with rotary cooling wind protection device outside described combustor, one end of swinging cold wind protection device is that cold wind enters
Mouthful, the other end is connected with the smoke box one end at pipe heat exchanger top by flue, with expansion chamber phase bottom pipe heat exchanger
Connection, the outside of combustor is provided with wind mixed chamber, is provided with outer circulation wind containment vessel, wind mixed chamber and outer circulation wind outside pipe heat exchanger
Containment vessel is connected.
A kind of environmental protection and energy saving air stove the most according to claim 1, it is characterised in that described combustor and pipe heat exchanger
Between flue be provided with high temperature heat transfer zone, high temperature heat transfer zone is made up of multiple plate type heat exchange piece.
A kind of environmental protection and energy saving air stove the most according to claim 1, it is characterised in that described combustor with set rotary cooling
It is provided with waterproof layer between wind protection device.
A kind of environmental protection and energy saving air stove the most according to claim 1, it is characterised in that described swinging cold wind protection device
And it is provided with multiple wind deflector between combustor.
A kind of environmental protection and energy saving air stove the most according to claim 1, it is characterised in that described pipe heat exchanger is by multiple double
Helical structure tubular type heat exchanger package becomes, and double-spiral structure pipe heat exchanger has outside to be provided with external spiral sea whelk, and inner side is provided with internal coiling
Sheet.
A kind of environmental protection and energy saving air stove the most according to claim 1, it is characterised in that described outer circulation wind containment vessel straight
Footpath is cold air inlet more than the diameter of wind mixed chamber, outer circulation wind containment vessel with one end of wind mixed chamber junction, and wind enters from cold air inlet
Entering in outer circulation wind containment vessel, chance of shuttling back and forth in the middle of pipe heat exchanger enters in wind mixed chamber behind high temperature heat transfer zone.
A kind of environmental protection and energy saving air stove the most according to claim 1, it is characterised in that be provided with silicic acid outside described wind mixed chamber
Aluminium sheet heat-insulation layer.
A kind of environmental protection and energy saving air stove the most according to claim 1, it is characterised in that one end of described combustor is filler
Opening, the other end is flue gas opening, and filler opening diameter is more than flue gas opening diameter.
A kind of environmental protection and energy saving air stove the most according to claim 1, it is characterised in that described swinging cold wind protection device
The diameter of cold wind import more than the diameter of flue connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620355157.0U CN205606894U (en) | 2016-04-22 | 2016-04-22 | Environmental protection and energy saving hot -blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620355157.0U CN205606894U (en) | 2016-04-22 | 2016-04-22 | Environmental protection and energy saving hot -blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205606894U true CN205606894U (en) | 2016-09-28 |
Family
ID=56969944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620355157.0U Expired - Fee Related CN205606894U (en) | 2016-04-22 | 2016-04-22 | Environmental protection and energy saving hot -blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205606894U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757977A (en) * | 2016-04-22 | 2016-07-13 | 铁岭鑫鹏机械厂 | Environment-friendly and energy-saving hot-blast furnace and use method thereof |
-
2016
- 2016-04-22 CN CN201620355157.0U patent/CN205606894U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757977A (en) * | 2016-04-22 | 2016-07-13 | 铁岭鑫鹏机械厂 | Environment-friendly and energy-saving hot-blast furnace and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 Termination date: 20180422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |