CN106500517B - A kind of Industrial Boiler flue gas heat recovery device - Google Patents
A kind of Industrial Boiler flue gas heat recovery device Download PDFInfo
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- CN106500517B CN106500517B CN201611216917.0A CN201611216917A CN106500517B CN 106500517 B CN106500517 B CN 106500517B CN 201611216917 A CN201611216917 A CN 201611216917A CN 106500517 B CN106500517 B CN 106500517B
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- case
- coal
- prewarming
- industrial boiler
- smoke filtration
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Classifications
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- 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
- F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
- F27D17/002—Details of the installations, e.g. fume conduits or seals
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- 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
-
- 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
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- 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
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention discloses a kind of Industrial Boiler flue gas heat recovery devices, including pedestal, Industrial Boiler, smoke filtration case, coal prewarming case and cigarette ash collecting case, smoke filtration case and coal prewarming case are respectively equipped between the column installed on pedestal, the lower part of smoke filtration case is installed with No. two dust hoods, it is interconnected between the top and the lower part of smoke filtration case of No. two dust hoods, coal prewarming case is rotatablely connected by rolling bearing and two columns, coal prewarming case is arranged right below discharge duct, discharge duct is interconnected by negative pressure fan and aspirating air pipe, discharge duct is located at the surface of cigarette ash collecting case, coal prewarming case includes coaming plate, Moveable lid body, side plate and rotating bar, the inside of smoke filtration case is installed with multiple filter screens successively from top to bottom.The configuration of the present invention is simple, reasonable design, the waste heat that can efficiently use flue gas in boiler are dried and preheat to coal, improve the efficiency of combustion of coal, highly practical.
Description
Technical field
The present invention relates to Industrial Boiler field, specifically a kind of Industrial Boiler flue gas heat recovery device.
Background technology
Industrial Boiler product is divided to two kinds, first, steam, for generating electricity, or gas supply, for example chemical fertilizer factory can be vaporized with steam,
Using coal as raw material, chemical fertilizer is synthesized, here it is typical Industrial Boiler, Industrial Boiler is still in the great majority with fire coal, and the one of combustion gas
As be waste heat boiler for recycling waste heat.Commonly to be important thermal energy dynamic for circulating fluidized bed boiler Industrial Boiler for Industrial Boiler
Power equipment, China are world today's boiler for producing and most commonly used country.Chinese manufacturing is established after founding of New
With grow up.Within the following quite a long time, coal-burned industrial boiler will be the leading products in China.
Industrial Boiler during use, contains a large amount of thermal energy in the flue gas of generation, flue gas direct emission will cause
The waste of thermal energy；Meanwhile containing a large amount of graininess flue dust in flue gas, if direct emission can cause environment centainly to pollute.
Invention content
The purpose of the present invention is to provide a kind of Industrial Boiler flue gas heat recovery devices, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the present invention provides the following technical solutions：
A kind of Industrial Boiler flue gas heat recovery device, including pedestal, Industrial Boiler, smoke filtration case, coal are pre-
Hot tank, gear drive group, negative pressure fan, discharge duct and cigarette ash collecting case, pedestal left end upper surface are fixedly installed work
Industry boiler；The top of the Industrial Boiler, which is also connected to, is equipped with fume collection hose；The also fixed peace in the right part upper surface of the pedestal
There are two the columns of vertical direction setting for dress；The top left hand of the column is installed with horizontally arranged cross bar, horizontal
Sliding is provided with sliding block on bar, and the lower part of sliding block is fixedly connected with the top of No.1 range hood, the lower part of No.1 range hood and cigarette
The top that gas collects hose is interconnected；The left end of the cross bar is also equipped with emergency light；That is installed on the pedestal is vertical
Smoke filtration case and coal prewarming case are respectively equipped between column, wherein smoke filtration case is located at the top of coal prewarming case；It is described
Smoke filtration case is erected at by supporting rod fixation between two columns；The lower part of the smoke filtration case is installed with No. two
Dust hood is interconnected between the top and the lower part of smoke filtration case of No. two dust hoods；The coal prewarming case passes through rolling
Bearing and two columns are rotatablely connected；The coal prewarming case is arranged right below discharge duct, and discharge duct passes through negative pressure wind
Fan is interconnected with aspirating air pipe；The upper surface of the discharge duct has also been uniformly arranged multiple mutually to be interconnected with exhaust pipe interior
Logical exhaust hole；The discharge duct is located at the surface of cigarette ash collecting case, and cigarette ash collecting case is fixed at the upper of pedestal
Surface；The coal prewarming case includes coaming plate, Moveable lid body, side plate and rotating bar；The coaming plate is that surface has uniformly been machined with
The platy structure of mesh；The side of the side plate is fixedly connected with one end of rotating bar, and the other end of rotating bar passes through the axis of rolling
It holds and is rotatablely connected with column；The right end upper surface of the pedestal is also installed with driving motor, and the output shaft of driving motor is logical
It crosses gear drive group to link with rotation axis, the other end of rotation axis is fixedly connected with the rotation boom end on the right side of coal prewarming case；
The top of the smoke filtration case offers exhaust outlet；The inside of the smoke filtration case is installed with more successively from top to bottom
A filter screen；The lower surface quadrangle of the pedestal is installed with support leg.
As a further solution of the present invention：The side outer wall top of the Industrial Boiler is equipped with boiler feeding mouth and visually
The side wall junction of window, wherein boiler feeding mouth and Industrial Boiler is additionally provided with open-close type baffle；Outside the side of the Industrial Boiler
Wall lower part is additionally provided with ash hole.
As a further solution of the present invention：The both ends lower part of No. two dust hoods has been fixedly connected with screen.
As a further solution of the present invention：The coal prewarming case passes through coaming plate and its side plate mutual cooperation shape at both ends
At cylindrical cavity structure, Moveable lid body is bolted mode and is fixedly connected with coaming plate.
As a further solution of the present invention：The gear drive group includes driving belt, driving gear and driven gear,
Wherein the output shaft linkage of driving gear and driving motor, driven gear mutually link with rotation axis；The driving gear and from
It is linked by driving belt between moving gear.
As a further solution of the present invention：The quantity of the filter screen is 3~5, on filter screen from top to bottom
Filter opening pore size is in incrementally to arrange.
Compared with prior art, the beneficial effects of the invention are as follows：The flue gas containing a large amount of thermal energy generated in Industrial Boiler,
Flue gas is escaped up into fume collection hose, and discharge duct is reached after aspirating air pipe under the action of negative pressure fan
It is interior, and escaped up by exhaust hole；It is pre- that the flue gas escaped by exhaust hole by the mesh on coaming plate surface enters coal
The inside of hot tank carries out adequately dry and preheats, industry is traveled further into convenient for coal using the waste heat in flue gas to coal
It burns in boiler, the coal burning after dry and preheating is abundant and effect is good；Flue gas across coal prewarming case is being kept off
It under the blocking of air curtain, escapes further up, into the inside of smoke filtration case, by the filtering of multiple filtration net, in flue gas
Particulate contamination effectively stopped that the particulate contamination of blocking moves downward under gravity, eventually fall in cigarette ash receipts
It completes to collect in header, filtered flue gas is discharged by exhaust outlet；Driving motor is started, under the action of gear drive group,
Coal prewarming case is rotated, and coal prewarming case is in rotation process so that and coal is constantly overturn in the inside of coal prewarming case,
Drying and the pre-heat effect for effectively increasing coal, make full use of waste heat in flue gas.To sum up, whole device is simple in structure, design
Rationally, the waste heat that can efficiently use flue gas in boiler is dried and preheats to coal, improves the efficiency of combustion of coal, practical
Property is strong.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of coal drying box in the present invention.
Fig. 3 is the structural schematic diagram of middle gear transmission group of the present invention.
In figure：1- pedestals, 2- Industrial Boilers, 3- smoke filtration casees, 31- filter screens, 32- exhaust outlets, 4- coal drying boxes,
41- coaming plates, 42- Moveable lid bodies, 43- coals, 44- side plates, 45- rotating bars, 5- gear drive groups, 51- driving belts, 52- master
Moving gear, 53- driven gears, 6- boiler feeding mouths, 7- ash holes, 8- visual windows, 9- fume collection hoses, the smoking of 10- No.1s
Cover, 11- sliding blocks, 12- emergency lights, 13- aspirating air pipes, 14- negative pressure fans, 15- discharge ducts, 16- exhaust holes, 17-
Cigarette ash collecting case, 18- support legs, 19- driving motors, 20- rotation axis, No. bis- range hoods of 21-, 22- rolling bearings, 23- keep out the wind
Curtain, 24- cross bars, 25- columns, 26- supporting rods.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig.1-3, in the embodiment of the present invention, a kind of Industrial Boiler flue gas heat recovery device, including pedestal
1, Industrial Boiler 2, smoke filtration case 3, coal prewarming case 4, gear drive group 5, negative pressure fan 14, discharge duct 15 and cigarette ash are received
Header 17,1 left end upper surface of the pedestal are fixedly installed Industrial Boiler 2；The side outer wall upper boiler of the Industrial Boiler 2
Charge door 6 and visual window 8, wherein boiler feeding mouth 6 and the side wall junction of Industrial Boiler 2 are additionally provided with open-close type baffle, prevent
The effusion of flare and flue dust in Industrial Boiler 2；The side outer wall lower part of the Industrial Boiler 2 is additionally provided with ash hole 7, ash hole
7 effect is easy for the discharge of ashes in Industrial Boiler 2；The effect of the visual window 8 is easy for the combustion in observation Industrial Boiler 2
Burn situation；The top of the Industrial Boiler 2, which is also connected to, is equipped with fume collection hose 9；The right part upper surface of the pedestal 1 is also fixed
There are two the columns 25 of vertical direction setting for installation；The top left hand of the column 25 is installed with horizontally arranged cross
Bar 24, on cross bar 24 sliding be provided with sliding block 11, the lower part of sliding block 11 is fixedly connected with the top of No.1 range hood 10, No.1 suction
The lower part of petticoat pipe 10 is interconnected with the top of fume collection hose 9；The left end of the cross bar 24 is also equipped with emergency light
12, the environment of emergency light 12 being set as residing for whole device provides illumination；Two columns 25 installed on the pedestal 1
Between be respectively equipped with smoke filtration case 3 and coal prewarming case 4, wherein smoke filtration case 3 is located at the top of coal prewarming case 4；Institute
Smoke filtration case 3 is stated to be erected between two columns 25 by the fixation of supporting rod 26；Peace is fixed in the lower part of the smoke filtration case 3
Equipped with No. two dust hoods 21, it is interconnected between the top and the lower part of smoke filtration case 3 of No. two dust hoods 21；No. two suctions
The both ends lower part of dust hood 21 has been fixedly connected with screen 23；The coal prewarming case 4 passes through rolling bearing 22 and two columns
25 rotation connections；The coal prewarming case 4 is arranged right below discharge duct 15, and discharge duct 15 passes through negative pressure fan 14 and suction
Feed channel 13 is interconnected；The upper surface of the discharge duct 15 has also been uniformly arranged multiple 15 inside with discharge duct and has mutually interconnected
Logical exhaust hole 16；The discharge duct 15 is located at the surface of cigarette ash collecting case 17, and cigarette ash collecting case 17 is fixed at
The upper surface of pedestal 1；The coal prewarming case 4 includes coaming plate 41, Moveable lid body 42, side plate 44 and rotating bar 45, wherein coal
Preheating cabinet 4 complements each other to form cylindrical cavity structure by coaming plate 41 and its side plate at both ends 44, passes through activity in cylindrical cavity
Lid 42 is filled with coal 43, and Moveable lid body 42 is bolted mode and is fixedly connected with coaming plate 41；The coaming plate 41 is table
Face is uniformly machined with meshed platy structure；The side of the side plate 44 is fixedly connected with one end of rotating bar 45, rotating bar
45 other end is rotatablely connected by rolling bearing 22 and column 25；The right end upper surface of the pedestal 1 is also installed with drive
The output shaft of dynamic motor 19, driving motor 19 is linked by gear drive group 5 and rotation axis 20, the other end and coal of rotation axis 20
45 end of rotating bar on 4 right side of charcoal preheating cabinet is fixedly connected；The gear drive group 5 includes driving belt 51, driving gear 52
With driven gear 53, wherein driving gear 52 and the output shaft of driving motor 19 links, and driven gear 53 is mutual with rotation axis 20
Linkage；It is linked by driving belt 51 between the driving gear 52 and driven gear 53；The top of the smoke filtration case 3
End offers exhaust outlet 32；The inside of the smoke filtration case 3 is installed with multiple filter screens 31, and mistake successively from top to bottom
The quantity of strainer 31 is 3~5, and the filter opening pore size on filter screen 31 from top to bottom is in incrementally to arrange；The pedestal 1
Lower surface quadrangle be installed with support leg 18.
The present invention operation principle be：Device when in use, the flue gas containing a large amount of thermal energy generated in Industrial Boiler 2,
Flue gas is escaped up into fume collection hose 9, reaches exhaust after aspirating air pipe 13 under the action of negative pressure fan 14
In pipeline 15, and escaped up by exhaust hole 16；The net for passing through 41 surface of coaming plate by the flue gas that exhaust hole 16 escapes
Hole enters the inside of coal prewarming case 4, and coal 43 is adequately dried and preheated using the waste heat in flue gas, is convenient for coal
43 travel further into Industrial Boiler 2 and burn, and the coal 43 after dry and preheating burns fully and effect is good；Across coal
The flue gas of charcoal preheating cabinet 4 escapes further up under the blocking of screen 23, into the inside of smoke filtration case 3, through excessive
The filtering of layer filter screen 31, the particulate contamination in flue gas are blocked, and particulate contamination moves downward under gravity, most
It falls on eventually in cigarette ash collecting case 17 and completes to collect, filtered flue gas is discharged by exhaust outlet 32；Driving motor 19 is started, in tooth
Under the action of taking turns transmission group 5, coal prewarming case 4 is rotated, and coal prewarming case 4 is in rotation process so that coal 43 is in coal
The inside of charcoal preheating cabinet 4 is constantly overturn, and is effectively increased drying and the pre-heat effect of coal 43, is made full use of waste heat in flue gas.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (3)
1. a kind of Industrial Boiler flue gas heat recovery device, including pedestal, Industrial Boiler, smoke filtration case, coal prewarming
Case, gear drive group, negative pressure fan, discharge duct and cigarette ash collecting case, which is characterized in that pedestal left end upper surface is fixed
It is provided with Industrial Boiler；The top of the Industrial Boiler, which is also connected to, is equipped with fume collection hose；The right part upper surface of the pedestal
The column of vertical direction setting there are two being also fixedly mounted；The top left hand of the column is installed with horizontally arranged
Cross bar, on cross bar sliding be provided with sliding block, the lower part of sliding block is fixedly connected with the top of No.1 range hood, under No.1 range hood
Portion and the top of fume collection hose are interconnected；The left end of the cross bar is also equipped with emergency light；Pacify on the pedestal
Smoke filtration case and coal prewarming case are respectively equipped between the column of dress, wherein smoke filtration case is located at the upper of coal prewarming case
Side；The smoke filtration case is erected at by supporting rod fixation between two columns；Peace is fixed in the lower part of the smoke filtration case
Equipped with No. two dust hoods, it is interconnected between the top and the lower part of smoke filtration case of No. two dust hoods；The coal prewarming case
It is rotatablely connected by rolling bearing and two columns；The coal prewarming case is arranged right below discharge duct, and discharge duct is logical
Negative pressure fan is crossed to be interconnected with aspirating air pipe；The upper surface of the discharge duct has also been uniformly arranged in multiple and discharge duct
The interconnected exhaust hole in portion；The discharge duct is located at the surface of cigarette ash collecting case, and cigarette ash collecting case is fixed at
The upper surface of pedestal；The coal prewarming case includes coaming plate, Moveable lid body, side plate and rotating bar；The coaming plate is uniformly distributed for surface
It is machined with meshed platy structure；The side of the side plate is fixedly connected with one end of rotating bar, and the other end of rotating bar is logical
Rolling bearing is crossed to be rotatablely connected with column；The right end upper surface of the pedestal is also installed with driving motor, driving motor
Output shaft is linked by gear drive group and rotation axis, and the other end of rotation axis and the rotation boom end on the right side of coal prewarming case are solid
Fixed connection；The top of the smoke filtration case offers exhaust outlet；The inside of the smoke filtration case is fixed successively from top to bottom
Multiple filter screens are installed；The lower surface quadrangle of the pedestal is installed with support leg, outside the side of the Industrial Boiler
Wall top is equipped with boiler feeding mouth and visual window, and the side wall junction of wherein boiler feeding mouth and Industrial Boiler is additionally provided with open-close type
Baffle；The side outer wall lower part of the Industrial Boiler is additionally provided with ash hole, and the both ends lower part of No. two dust hoods is fixed
It is connected with screen；The coal prewarming case complements each other to form cylindrical cavity structure by the side plate of coaming plate and its both ends, living
Dynamic lid is bolted mode and is fixedly connected with coaming plate.
2. a kind of Industrial Boiler flue gas heat recovery device according to claim 1, which is characterized in that the gear
Transmission group includes driving belt, driving gear and driven gear, and the wherein output shaft of driving gear and driving motor links, driven
Gear mutually links with rotation axis；It is linked by driving belt between the driving gear and driven gear.
3. a kind of Industrial Boiler flue gas heat recovery device according to claim 1, which is characterized in that the filtering
The quantity of net is 3~5, and the filter opening pore size on filter screen from top to bottom is in incrementally to arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611216917.0A CN106500517B (en) | 2016-12-26 | 2016-12-26 | A kind of Industrial Boiler flue gas heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611216917.0A CN106500517B (en) | 2016-12-26 | 2016-12-26 | A kind of Industrial Boiler flue gas heat recovery device |
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| Publication Number | Publication Date |
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| CN106500517A CN106500517A (en) | 2017-03-15 |
| CN106500517B true CN106500517B (en) | 2018-10-02 |
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| CN201611216917.0A Active CN106500517B (en) | 2016-12-26 | 2016-12-26 | A kind of Industrial Boiler flue gas heat recovery device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109353989A (en) * | 2018-09-27 | 2019-02-19 | 四川岷江雪盐化有限公司 | A kind of recycling of production of sodium chlorate low temperature exhaust heat and utilize method |
| CN109813112B (en) * | 2019-03-07 | 2020-08-18 | 大唐东营发电有限公司 | Boiler flue gas waste heat circulation absorption system |
| CN112414021B (en) * | 2020-11-26 | 2022-04-26 | 德清领千木业有限公司 | Drying device is used in woodwork processing |
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| CN201237453Y (en) * | 2008-06-04 | 2009-05-13 | 赵凯 | Flue gas waste heat recovery and utilization apparatus of oil-gas combustion boiler |
| CN102732277A (en) * | 2012-06-22 | 2012-10-17 | 长安大学 | Horizontally-rotary coal section material-return destructive-distillation apparatus and technology thereof |
| CN203083139U (en) * | 2013-01-27 | 2013-07-24 | 东莞中盈环科节能科技有限公司 | Energy-saving system for boiler flue gas waste heat recovery |
| CN203771707U (en) * | 2014-04-15 | 2014-08-13 | 广西壮族自治区水产科学研究院 | Flue gas waste heat recycling system for boiler |
| CN205640926U (en) * | 2016-01-23 | 2016-10-12 | 赵东星 | Refuse burning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203744266U (en) * | 2014-03-19 | 2014-07-30 | 温向远 | Auxiliary thermal power generation system for waste incineration |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201237453Y (en) * | 2008-06-04 | 2009-05-13 | 赵凯 | Flue gas waste heat recovery and utilization apparatus of oil-gas combustion boiler |
| CN102732277A (en) * | 2012-06-22 | 2012-10-17 | 长安大学 | Horizontally-rotary coal section material-return destructive-distillation apparatus and technology thereof |
| CN203083139U (en) * | 2013-01-27 | 2013-07-24 | 东莞中盈环科节能科技有限公司 | Energy-saving system for boiler flue gas waste heat recovery |
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| CN106500517A (en) | 2017-03-15 |
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Effective date of registration: 20180822 Address after: 242000 Kaiyuan Road, Xuanzhou Industrial Park, Xuancheng, Anhui Applicant after: BRIGHT THERMAL EQUIPMENT CO., LTD. Address before: 450000 Henan Zhengzhou high tech Industrial Development Zone, science Avenue and West Fourth Ring Road west side, Vanke City, building 15, room 404. Applicant before: Zhengzhou Tour Network Technology Co., Ltd. |
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