CN109682223A - A kind of oil smoke recycling burner - Google Patents
A kind of oil smoke recycling burner Download PDFInfo
- Publication number
- CN109682223A CN109682223A CN201910001900.0A CN201910001900A CN109682223A CN 109682223 A CN109682223 A CN 109682223A CN 201910001900 A CN201910001900 A CN 201910001900A CN 109682223 A CN109682223 A CN 109682223A
- Authority
- CN
- China
- Prior art keywords
- smoke
- oil
- pipe
- pumping
- recycling
- 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.)
- Pending
Links
- 239000000779 smoke Substances 0.000 title claims abstract description 249
- 238000004064 recycling Methods 0.000 title claims abstract description 52
- 238000005086 pumping Methods 0.000 claims abstract description 102
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000002485 combustion reaction Methods 0.000 claims abstract description 19
- 239000003345 natural gas Substances 0.000 claims abstract description 19
- 239000003517 fume Substances 0.000 claims abstract description 7
- 235000019504 cigarettes Nutrition 0.000 claims description 8
- 239000006233 lamp black Substances 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000004134 energy conservation Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 210000004744 fore-foot Anatomy 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a kind of oil smoke to recycle burner, including smoke pipe of pumping, smoke pumping smoke pipe valve, kitchen ventilator, oil smoke suction line, oil return pipe, oil returning branch pipe, natural gas combustion nozzle and recycling smoke pipe, the setting of smoke pumping smoke pipe valve is on oil pumping smoke pipe, oil pumping smoke pipe is connected to oil smoke intake line, kitchen ventilator is connected to one end of oil smoke intake line, kitchen ventilator is connected to recycling smoke pipe by oil return pipe, oil returning branch pipe setting is on recycling smoke pipe, oil returning branch pipe is connected to recycling smoke pipe, the one end of oil returning branch pipe far from recycling smoke pipe is arranged in natural gas combustion nozzle.Manufactured oil smoke recycling burner, which has, by adopting the above technical scheme collects oil smoke function, then is pushed to before natural gas combustion nozzle by pipeline and burns Waste oil fume, plays energy conservation and environmental protection, the purpose of cleaning ambient.
Description
Technical field
The present invention relates to oil smoke recycling field, in particular to a kind of oil smoke recycles burner.
Background technique
During industrial furnace carries out material heat treatment, due to the punching press of material preceding working procedure or die casting, through commonly using oil lubrication,
In heat treatment process, material warms generate many oil smoke and smell in industrial furnace, and these high-temperature oil smokes are directly to arrange mostly
Out, not only waste of resource, and the oil smoke being discharged causes serious influence to environment, with the energy-saving ring advocated now in society
The grave fault that factoring is read.
This status annoyings always the producer using industrial furnace, in order to solve these problems, there is the functions such as increase cleaning
Equipment, but which increase production process and costs.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of oil smoke recycling burner, at pervious industrial furnace or heat
Reason production line compares, and has and collects oil smoke function, then be pushed to before natural gas combustion nozzle by pipeline and burn Waste oil fume, plays
Energy conservation and environmental protection, the purpose of cleaning ambient.
One of present invention oil smoke recycle burner, including oil pumping smoke pipe, smoke pumping smoke pipe valve, kitchen ventilator,
Oil smoke suction line, oil return pipe, oil returning branch pipe, natural gas combustion nozzle and recycling smoke pipe, the smoke pumping smoke pipe valve setting are being pumped
On smoke pipe, the oil pumping smoke pipe is connected to oil smoke suction line, and the kitchen ventilator is connected to one end of oil smoke suction line, described
Kitchen ventilator is connected to recycling smoke pipe by oil return pipe, and the oil returning branch pipe setting is on recycling smoke pipe, the oil returning branch pipe
It is connected to recycling smoke pipe, the one end of oil returning branch pipe far from recycling smoke pipe is arranged in the natural gas combustion nozzle.
In above scheme, the oil pumping smoke pipe includes preceding oil pumping smoke pipe and rear oil pumping smoke pipe, and smoke pipe is pumped before described with after
Oil pumping smoke pipe is arranged at intervals on oil smoke suction line, and smoke pipe of pumping before described is connected to oil smoke suction line, smoke pipe of pumping after described
It is connected to oil smoke suction line.
In above scheme, the smoke pumping smoke pipe valve includes preceding smoke pumping smoke pipe valve and rear smoke pumping smoke pipe valve, before described
Smoke pumping smoke pipe valve is arranged on preceding oil pumping smoke pipe, and the rear smoke pumping smoke pipe valve is arranged on rear oil pumping smoke pipe.
In above scheme, the oil returning branch pipe include the first branch pipe, the second branch pipe and third branch pipe, first branch pipe,
On recycling smoke pipe, first branch pipe is connected to recycling smoke pipe for second branch pipe and the setting of third branch interval, and described second
Pipe is connected to recycling smoke pipe, and the third branch pipe is connected to recycling smoke pipe.
In above scheme, the kitchen ventilator includes pump orifice, motor, fan blade and send mouth, the pump orifice with
The connection of oil smoke suction line, described that mouth is sent to connect with oil return pipe, the motor connect with fan blade and fan blade is driven to rotate.
The advantages and beneficial effects of the present invention are: the present invention provides a kind of oil smoke recycling burner, with pervious work
Industry furnace or heat-treatment production line compare, and have and collect oil smoke function, then are pushed to before natural gas combustion nozzle by pipeline by Waste oil fume
It burns, plays energy conservation and environmental protection, the purpose of cleaning ambient.Have during the annealing of aluminum current product, solid molten, aging strengthening model
Its environmental requirement makes many factory upgrades regenerate, substitutes the demand of old equipment.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the main view of the first mounting means structure of the invention.
Fig. 2 is the main view of second of mounting means structure of the invention.
Fig. 3 is the left view of second of mounting means structure of the invention.
In figure: 1, preceding oil pumping smoke pipe 2, preceding smoke pumping smoke pipe valve 3, smoke pipe of pumping afterwards
4, rear smoke pumping smoke pipe valve 5, kitchen ventilator 6, pump orifice 7, send mouth
8, oil smoke suction line 9, oil return pipe 10, the first branch pipe 11, the second branch pipe
12, third branch pipe 13, natural gas combustion nozzle 14, recycling smoke pipe
Specific embodiment
With reference to the accompanying drawings and examples, further description of the specific embodiments of the present invention.Following embodiment is only
For clearly illustrating technical solution of the present invention, and not intended to limit the protection scope of the present invention.
Embodiment one:
As shown in Figure 1, the present invention is a kind of oil smoke recycling burner, including oil pumping smoke pipe, smoke pumping smoke pipe valve, oil pumping
Cigarette blower 5, oil smoke suction line 8, oil return pipe 9, oil returning branch pipe, natural gas combustion nozzle 13 and recycling smoke pipe 14, smoke pumping smoke pipe valve
Setting is on oil pumping smoke pipe, and oil pumping smoke pipe is connected to oil smoke suction line 8, and kitchen ventilator 5 is connected to the one of oil smoke intake line 8
End, kitchen ventilator 5 are connected to recycling smoke pipe 14 by oil return pipe 9, and oil returning branch pipe setting is on recycling smoke pipe 14, oil returning branch pipe
It is connected to recycling smoke pipe 14, the one end of oil returning branch pipe far from recycling smoke pipe 14 is arranged in natural gas combustion nozzle 13.
Further, oil pumping smoke pipe includes preceding oil pumping smoke pipe 1 and smoke pipe 2 of pumping afterwards, preceding oil pumping smoke pipe 1 and rear oil pumping smoke pipe
2 are arranged at intervals on oil smoke suction line 8, and preceding oil pumping smoke pipe 1 is connected to oil smoke suction line 8, rear smoke pipe 2 and the oil smoke suction line of pumping
8 connections.
Further, smoke pumping smoke pipe valve includes preceding smoke pumping smoke pipe valve 2 and rear smoke pumping smoke pipe valve 4, preceding smoke pumping cigarette
Pipe valve 2 is arranged on preceding oil pumping smoke pipe 1, and rear smoke pumping smoke pipe valve 4 is arranged on rear oil pumping smoke pipe 3.
Further, oil returning branch pipe includes the first branch pipe 10, the second branch pipe 11 and third branch pipe 12, the first branch pipe 10, the
Two branch pipes 11 and third branch pipe 12 are arranged at intervals on recycling smoke pipe 14, and the first branch pipe 10 is connected to recycling smoke pipe 14, and second
Pipe 11 is connected to recycling smoke pipe 14, and third branch pipe 12 is connected to recycling smoke pipe 14.
Specifically, the kitchen ventilator 5 includes pump orifice 6, motor, fan blade and send mouth 7, pump orifice 6 and oil smoke
Intake line 8 connects, and send mouth 7 to connect with oil return pipe 9, motor connect with fan blade and fan blade is driven to rotate.
In above scheme, preceding oil pumping smoke pipe 1 is used to be passed through the forefoot area that material enters burner hearth；Preceding smoke pumping smoke pipe valve 2 is used for
The size of smoke pumping pipeline area before adjusting；Oil pumping smoke pipe 3 is used to be passed through the rear region that material enters burner hearth afterwards；Smoke pumping smoke pipe afterwards
The size of smoke pumping pipeline area after valve 4 is used to adjust；Kitchen ventilator 5 has the pump orifice 6 of heat preservation, internal motor
It drives fan blade rotation to extrude pump orifice generation negative pressure again the oil smoke sucking fan blade in furnace and send mouth 7；The first of oil returning branch pipe
Branch pipe 10, the second branch pipe 11, third branch pipe 12 area summation be less than oil return pipe 9；Natural gas combustion nozzle 13 is heating element, is used for
Burn the gas recycled.
Embodiment two:
As shown in Fig. 2-Fig. 3, the present invention is a kind of oil smoke recycling burner, including oil pumping smoke pipe, smoke pumping smoke pipe valve,
Kitchen ventilator 5, oil smoke suction line 8, oil return pipe 9, oil returning branch pipe, natural gas combustion nozzle 13 and recycling smoke pipe 14, smoke pumping cigarette
Pipe valve setting is on oil pumping smoke pipe, and oil pumping smoke pipe is connected to oil smoke suction line 8, and kitchen ventilator 5 is connected to oil smoke suction line 8
One end, kitchen ventilator 5 are connected to recycling smoke pipe 14 by oil return pipe 9, and oil returning branch pipe setting is on recycling smoke pipe 14, oil return branch
Pipe is connected to recycling smoke pipe 14, and the one end of oil returning branch pipe far from recycling smoke pipe 14 is arranged in natural gas combustion nozzle 13.
Further, oil pumping smoke pipe includes preceding oil pumping smoke pipe 1 and smoke pipe 3 of pumping afterwards, preceding oil pumping smoke pipe 1 and rear oil pumping smoke pipe
3 are arranged at intervals on oil smoke suction line 8, and preceding oil pumping smoke pipe 1 is connected to oil smoke suction line 8, rear smoke pipe 3 and the oil smoke suction line of pumping
8 connections.
Further, smoke pumping smoke pipe valve includes preceding smoke pumping smoke pipe valve 2 and rear smoke pumping smoke pipe valve 4, preceding smoke pumping cigarette
Pipe valve 2 is arranged on preceding oil pumping smoke pipe 1, and rear smoke pumping smoke pipe valve 4 is arranged on rear oil pumping smoke pipe 3.
Further, oil returning branch pipe includes the first branch pipe 10, the second branch pipe 11 and third branch pipe 12, the first branch pipe 10, the
Two branch pipes 11 and third branch pipe 12 are arranged at intervals on recycling smoke pipe 14, and the first branch pipe 10 is connected to recycling smoke pipe 14, and second
Pipe 11 is connected to recycling smoke pipe 14, and the third branch pipe 12 is connected to recycling smoke pipe 14.
Specifically, kitchen ventilator 5 includes pump orifice 6, motor, fan blade and send mouth 7, pump orifice 6 and oil smoke are sucked
Pipe 8 connects, and send mouth 7 to connect with oil return pipe 9, motor connect with fan blade and fan blade is driven to rotate.
In above scheme, preceding oil pumping smoke pipe 1 is used to be passed through the forefoot area that material enters burner hearth；Preceding smoke pumping smoke pipe valve 2 is used for
The size of smoke pumping pipeline area before adjusting；Oil pumping smoke pipe 3 is used to be passed through the rear region that material enters burner hearth afterwards；Smoke pumping smoke pipe afterwards
The size of smoke pumping pipeline area after valve 4 is used to adjust；Kitchen ventilator 5 has the pump orifice 6 of heat preservation, internal motor
It drives fan blade rotation to extrude pump orifice generation negative pressure again the oil smoke sucking fan blade in furnace and send mouth 7；The first of oil returning branch pipe
Branch pipe 10, the second branch pipe 11, third branch pipe 12 area summation be less than oil return pipe；Natural gas combustion nozzle 13 is heating element, is used for
Burn the gas recycled.
The working principle of the invention:
It heats and is carried out in heat treatment process in material, 260--450 DEG C of oil can crack, and a large amount of oil smoke be generated, with temperature
Rising, oil smoke oozes out under the action of micro-positive pressure toward outside burner hearth.Oil pumping smoke pipe is mounted on most positions of oil smoke generation
Side passes through a large amount of oil in preceding oil pumping smoke pipe 1 and rear oil pumping smoke pipe 3 sucking burner hearth the purpose is to receive and keep a large amount of rising oil smoke
Cigarette.It opens by preceding smoke pumping smoke pipe valve 2 and rear 4 control valve of smoke pumping smoke pipe valve and sucks a large amount of oil smoke greatly, closing is measured small
Oil smoke valve keeps pipeline intake function best, while being stored in oil smoke suction line 8.Oil smoke suction line 8 and kitchen ventilator 5
Pump orifice 6 connects, and by motor rotation fan blade changeable volume, generates negative pressure to oil pumping smoke pipe, and oil smoke constantly enters pump orifice 6,
Change cooking fume after cracking to suck all by fan blade rotary volume and be sent to outlet flue 7, recycling smoke pipe 14 and outlet flue 7 are logical
The connection of oil return pipe 9 is crossed, recycling smoke pipe 14 plays the role of logical cigarette changeable volume pressurization, send cigarette.Oil return pipe 9 and oil returning branch pipe exist
Play the role of sending oil smoke under the fan blade volume change of blower, also has area change between oil returning branch pipe and recycling smoke pipe 14
Change, when the outlet flue 7 of blower sends constantly into flue gas under the action of motor fan blade, is passed through under the large area of oil return pipe 9, then be pressed into
Small area flow tube can be such that flue gas flow pressure increases, with the first branch pipe 10, the direction force feed of the second branch pipe 11 and third branch pipe 12
To before natural gas combustion nozzle 13.When natural gas combustion nozzle 13 burns, has the function of middling speed or high speed flame, branch pipe is by shunting alignment
Flame sprays flue gas, and flue gas is made to flow into flame, carries out secondary burning, and the cracking oil smoke burn-up after material is heated protects furnace
Carbon is not tied in thorax, does not emit smoke pollution environment in burner hearth.
The advantages of the present invention:
Oil smoke recovery device of the invention has compared with pervious industrial furnace or heat-treatment production line and collects oil smoke function
Can, then be pushed to before natural gas combustion nozzle by pipeline and burn Waste oil fume, play energy conservation and environmental protection, the purpose of cleaning ambient.?
There is its environmental requirement during the annealing of aluminum current product, solid molten, aging strengthening model, so that many factory upgrades is regenerated, substitution is old
The demand of equipment.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of oil smoke recycles burner, which is characterized in that including the smoke pipe, smoke pumping smoke pipe valve, kitchen ventilator, oil of pumping
Cigarette suction line, oil return pipe, oil returning branch pipe, natural gas combustion nozzle and recycling smoke pipe, the smoke pumping smoke pipe valve are arranged in smoke pumping
Guan Shang, the oil pumping smoke pipe are connected to oil smoke suction line, and the kitchen ventilator is connected to one end of oil smoke suction line, the pumping
Lampblack fan be connected to recycling smoke pipe by oil return pipe, the oil returning branch pipe setting on recycling smoke pipe, the oil returning branch pipe and
Smoke pipe connection is recycled, the one end of oil returning branch pipe far from recycling smoke pipe is arranged in the natural gas combustion nozzle.
2. a kind of oil smoke according to claim 1 recycles burner, which is characterized in that the oil pumping smoke pipe includes preceding pumping
Fume tube and rear oil pumping smoke pipe, the preceding smoke pipe of pumping are arranged at intervals on oil smoke suction line with rear oil pumping smoke pipe, the preceding pumping
Fume tube is connected to oil smoke suction line, and smoke pipe of pumping after described is connected to oil smoke suction line.
3. a kind of oil smoke according to claim 2 recycles burner, which is characterized in that the smoke pumping smoke pipe valve includes
Preceding smoke pumping smoke pipe valve and rear smoke pumping smoke pipe valve, the preceding smoke pumping smoke pipe valve are arranged on preceding oil pumping smoke pipe, take out after described
Oil smoke smoke pipe valve is arranged on rear oil pumping smoke pipe.
4. a kind of oil smoke according to claim 1 recycles burner, which is characterized in that the oil returning branch pipe includes first
Branch pipe, the second branch pipe and third branch pipe, first branch pipe, the second branch pipe and third branch interval are arranged on recycling smoke pipe,
First branch pipe is connected to recycling smoke pipe, and second branch pipe is connected to recycling smoke pipe, the third branch pipe and recycling smoke pipe
Connection.
5. a kind of oil smoke according to claim 1 recycles burner, which is characterized in that the kitchen ventilator includes taking out
Suction inlet, motor, fan blade and mouth is sent, the pump orifice is connect with oil smoke suction line, described that mouth is sent to connect with oil return pipe, institute
Motor is stated to connect with fan blade and fan blade is driven to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910001900.0A CN109682223A (en) | 2019-01-02 | 2019-01-02 | A kind of oil smoke recycling burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910001900.0A CN109682223A (en) | 2019-01-02 | 2019-01-02 | A kind of oil smoke recycling burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109682223A true CN109682223A (en) | 2019-04-26 |
Family
ID=66191678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910001900.0A Pending CN109682223A (en) | 2019-01-02 | 2019-01-02 | A kind of oil smoke recycling burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109682223A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201229118Y (en) * | 2008-04-30 | 2009-04-29 | 宁波嘉隆工业有限公司 | Exhaust gas reclaiming device for heat treating furnace |
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| CN204786676U (en) * | 2015-07-15 | 2015-11-18 | 广东梅雁吉祥水电股份有限公司 | Novel household environmental protection equipment |
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| CN206572939U (en) * | 2017-02-08 | 2017-10-20 | 香港慕特斯电子科技有限公司 | The fuel gas table kiln stove of magnetic tape trailer Flash Gas Compression Skid System |
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-
2019
- 2019-01-02 CN CN201910001900.0A patent/CN109682223A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009106548A2 (en) * | 2008-02-29 | 2009-09-03 | BSH Bosch und Siemens Hausgeräte GmbH | Range hood device and method for purifying kitchen air |
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| WO2015043296A1 (en) * | 2013-09-24 | 2015-04-02 | 湖南巴陵炉窑节能股份有限公司 | Progressive-switching regenerative combustion apparatus and control method therefor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190426 |