CN106500517A - A kind of Industrial Boiler flue gas heat recovery device - Google Patents
A kind of Industrial Boiler flue gas heat recovery device Download PDFInfo
- Publication number
- CN106500517A CN106500517A CN201611216917.0A CN201611216917A CN106500517A CN 106500517 A CN106500517 A CN 106500517A CN 201611216917 A CN201611216917 A CN 201611216917A CN 106500517 A CN106500517 A CN 106500517A
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- China
- Prior art keywords
- case
- coal
- prewarming
- industrial boiler
- smoke filtration
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- 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
- 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
-
- 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 device, including base, 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 that installs on base, the bottom of smoke filtration case is installed with No. two dust shields, it is interconnected between the bottom of the top of No. two dust shields and smoke filtration case, being rotated with two columns by rolling bearing for coal prewarming case is connected, 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 drainage screens from top to bottom successively.Present configuration is simple, and reasonable in design, the waste heat that can have flue gas in effectively utilizes boiler is dried to coal and preheats, and improves the efficiency of combustion of coal, 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, and one is steam, for generating electricity, or supply, such as chemical fertilizer factory can be vaporized with steam,
With coal as raw material, synthesize chemical fertilizer, here it is typical Industrial Boiler, Industrial Boiler is still in the great majority with fire coal, the one of combustion gas
As be waste heat boiler be used for reclaim used heat.Commonly CFBB Industrial Boiler is that important heat energy is moved to Industrial Boiler
Power equipment, China are world today's boiler for producing and using most countries.Chinese manufacturing is set up after founding of New
With grow up.Within the following quite a long time, coal-burned industrial boiler will be the leading products of China.
Industrial Boiler contains substantial amounts of heat energy during use, in the flue gas of generation, and flue gas is directly discharged, be will result in
The waste of heat energy；Meanwhile, contain substantial amounts of graininess flue dust in flue gas, if directly discharge can cause certain pollution to environment.
Content of the invention
It is an object of the invention to provide a kind of Industrial Boiler flue gas heat recovery device, to solve above-mentioned background skill
The problem proposed in art.
For achieving the above object, the present invention provides following technical scheme：
A kind of Industrial Boiler flue gas heat recovery device, pre- including base, Industrial Boiler, smoke filtration case, coal
Hot tank, gear drive group, negative pressure fan, discharge duct and cigarette ash collecting case, the base left end upper surface are fixedly installed work
Industry boiler；The top of the Industrial Boiler also connects and is provided with fume collection flexible pipe；The also fixed peace of the right part upper surface of the base
Equipped with the column that two vertical directions are arranged；The top left hand of the column is installed with horizontally arranged cross bar, horizontal
Slide on bar and be provided with slide block, the bottom of slide block is fixedly connected with the top of a range hood, the bottom of a range hood and cigarette
Gas is collected the top of flexible pipe and is interconnected；The left end of the cross bar is also equipped with emergency light；That installed on the base is vertical
Smoke filtration case and coal prewarming case is respectively equipped between post, and wherein smoke filtration case is located at the top of coal prewarming case；Described
Smoke filtration case is fixed by support bar and is erected between two columns；The bottom of the smoke filtration case is installed with No. two
It is interconnected between the bottom of dust shield, the top of No. two dust shields and smoke filtration case；The coal prewarming case by rolling
Dynamic bearing is rotated with two columns and is connected；The coal prewarming case is arranged right below discharge duct, and discharge duct passes through negative pressure
Fan is interconnected with aspirating air pipe；The upper surface of the discharge duct has also been uniformly arranged inside multiple and discharge duct mutually
The exhaust hole of connection；The discharge duct is located at the surface of cigarette ash collecting case, and cigarette ash collecting case is fixedly installed on base
Upper surface；The coal prewarming case includes coaming plate, Moveable lid body, side plate and rotating bar；The coaming plate is uniformly machined with for surface
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 by rolling
Bearing is rotated with column and is connected；The right-hand member upper surface of the base is also installed with motor, the output shaft of motor
Linked with rotary shaft by gear drive group, the other end of rotary shaft fixes company with the rotation boom end on the right side of coal prewarming case
Connect；The top of the smoke filtration case offers air vent；The inside of the smoke filtration case is fixedly mounted from top to bottom successively
There are multiple drainage screens；The lower surface corner of the base is installed with supporting leg.
As further scheme of the invention：The side outer wall upper boiler charge door of the Industrial Boiler and visual window,
Wherein boiler feeding mouth is additionally provided with open-close type baffle plate with the side wall junction of Industrial Boiler；Under the side outer wall of the Industrial Boiler
Portion is additionally provided with ash hole.
As further scheme of the invention：The two ends bottom of No. two dust shields has been fixedly connected with screen.
As further scheme of the invention：The coal prewarming case is cooperated shape by the side plate of coaming plate and its two ends
Into cylindrical cavity structure, Moveable lid body is bolted mode and is fixedly connected with coaming plate.
As further scheme of the invention：The gear drive group includes driving belt, driving gear and driven gear,
Wherein driving gear is linked with the output shaft of motor, and driven gear is mutually linked with rotary shaft；The driving gear and from
Linked by driving belt between moving gear.
As further scheme of the invention：3～5 of the quantity of the drainage screen, on drainage screen from top to bottom
Filter opening pore size is in incrementally to arrange.
Compared with prior art, the invention has the beneficial effects as follows：The flue gas containing a large amount of heat energy produced in Industrial Boiler,
Flue gas is escaped up in entrance fume collection flexible pipe, reaches discharge duct in the presence of negative pressure fan after aspirating air pipe
Interior, and escaped up by exhaust hole；It is pre- that the flue gas escaped by exhaust hole enters coal by the mesh on coaming plate surface
The inside of hot tank, using flue gas in waste heat coal is sufficiently dried and is preheated, be easy to coal to travel further into industry
Burnt in boiler, the coal burning after drying and preheating is abundant and effect is good；Flue gas through coal prewarming case is in gear
Under the stop of air curtain, escape further up, enter the inside of smoke filtration case, through the filtration of multiple filtration net, in flue gas
Particulate contamination effectively stopped that the particulate contamination of stop is moved downward under gravity, eventually fall in flue dust receipts
Complete to collect in header, the flue gas after filtration is discharged through air vent；Motor is started, in the presence of gear drive group,
Coal prewarming case is rotated, and coal prewarming case is in rotation process so that coal is constantly overturn in the inside of coal prewarming case,
Drying and the pre-heat effect of coal is effectively increased, waste heat in flue gas is made full use of.To sum up, whole device simple structure, design
Rationally, the waste heat that can have flue gas in effectively utilizes boiler is dried to coal and preheats, and improves the efficiency of combustion of coal, practical
Property is strong.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of coal drying baker in the present invention.
Fig. 3 is the structural representation of middle gear transmission group of the present invention.
In figure：1- bases, 2- Industrial Boilers, 3- smoke filtration casees, 31- drainage screens, 32- air vents, 4- coal drying bakers,
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 flexible pipes, number smokings of 10-
Cover, 11- slide blocks, 12- emergency lights, 13- aspirating air pipes, 14- negative pressure fans, 15- discharge ducts, 16- exhaust holes, 17-
Cigarette ash collecting case, 18- supporting legs, 19- motors, 20- rotary shafts, No. bis- range hoods of 21-, 22- rolling bearings, 23- keep out the wind
Curtain, 24- cross bars, 25- columns, 26- support bars.
Specific embodiment
Accompanying drawing in below in conjunction with the embodiment of the present invention, to the embodiment of the present invention in technical scheme carry out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiment.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1-3 are referred to, in the embodiment of the present invention, a kind of Industrial Boiler flue gas heat recovery device, including base
1st, Industrial Boiler 2, smoke filtration case 3, coal prewarming case 4, gear drive group 5, negative pressure fan 14, discharge duct 15 and flue dust are received
Header 17,1 left end upper surface of the base 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 are additionally provided with open-close type baffle plate with the side wall junction of Industrial Boiler 2, prevent
The effusion of flare and flue dust in Industrial Boiler 2；The side outer wall bottom 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 that observes in Industrial Boiler 2
Burning situation；The top of the Industrial Boiler 2 also connects and is provided with fume collection flexible pipe 9；The right part upper surface of the base 1 is also fixed
The column 25 that two vertical directions are arranged is installed；The top left hand of the column 25 is installed with horizontally arranged horizontal stroke
Bar 24, slides on cross bar 24 and is provided with slide block 11, and the bottom of slide block 11 is fixedly connected with the top of a range hood 10, a suction
The bottom of petticoat pipe 10 is interconnected with the top of fume collection flexible pipe 9；The left end of the cross bar 24 is also equipped with emergency light
12, the environment being set to residing for whole device of emergency light 12 provides illumination；Two columns 25 that installs on the base 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
State smoke filtration case 3 to be erected between two columns 25 by the fixation of support bar 26；Fix peace in the bottom of the smoke filtration case 3
It is interconnected between bottom equipped with No. two dust shields 21, the top of No. two dust shields 21 and smoke filtration case 3；No. two suctions
The two ends bottom of dust hood 21 has been fixedly connected with screen 23；The coal prewarming case 4 vertical by rolling bearing 22 and two
Post 25 rotates connection；The coal prewarming case 4 is arranged right below discharge duct 15, discharge duct 15 by negative pressure fan 14 with
Aspirating air pipe 13 is interconnected；The upper surface of the discharge duct 15 has also been uniformly arranged inside multiple and discharge duct 15 mutually
The exhaust hole 16 of connection；The discharge duct 15 is located at the surface of cigarette ash collecting case 17, and cigarette ash collecting case 17 is fixedly installed
Upper surface in base 1；The coal prewarming case 4 includes coaming plate 41, Moveable lid body 42, side plate 44 and rotating bar 45, wherein coal
Charcoal preheating cabinet 4 is complemented each other to form in cylindrical cavity structure, cylindrical cavity by living by the side plate 44 of coaming plate 41 and its two ends
Dynamic 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
Surface is uniformly machined with meshed platy structure；The side of the side plate 44 is fixedly connected with one end of rotating bar 45, is rotated
The other end of bar 45 is rotated with column 25 by rolling bearing 22 and is connected；The right-hand member upper surface of the base 1 is also installed with
Motor 19, the output shaft of motor 19 are linked with rotary shaft 20 by gear drive group 5, the other end of rotary shaft 20 with
45 end of rotating bar on the right side of coal prewarming case 4 is fixedly connected；The gear drive group 5 includes driving belt 51, driving gear
52 and driven gear 53, wherein driving gear 52 is linked with the output shaft of motor 19, driven gear 53 and 20 phase of rotary shaft
Mutually link；Linked by driving belt 51 between the driving gear 52 and driven gear 53；The smoke filtration case 3
Top offers air vent 32；The inside of the smoke filtration case 3 is installed with multiple drainage screens 31 from top to bottom successively, and
3～5 of the quantity of drainage screen 31, the filter opening pore size on drainage screen 31 from top to bottom is in incrementally to arrange；The bottom
The lower surface corner of seat 1 is installed with supporting leg 18.
The present invention operation principle be：Device when using, the flue gas containing a large amount of heat energy that produces in Industrial Boiler 2,
Flue gas is escaped up in entrance fume collection flexible pipe 9, reaches aerofluxuss in the presence of negative pressure fan 14 after aspirating air pipe 13
In pipeline 15, and escaped up by exhaust hole 16；Net of the flue gas escaped by exhaust hole 16 by 41 surface of coaming plate
Hole enters the inside of coal prewarming case 4, using flue gas in waste heat coal 43 is sufficiently dried and is preheated, be easy to coal
43 travel further into and are burnt in Industrial Boiler 2, dry and preheating after coal 43 burn fully and effect is good；Pass through coal
The flue gas of charcoal preheating cabinet 4 is escaped under the stop of screen 23 further up, enters the inside of smoke filtration case 3, through excessive
The filtration of layer drainage screen 31, the particulate contamination in flue gas are blocked, and particulate contamination is moved downward under gravity, most
Fallen in cigarette ash collecting case 17 eventually and complete to collect, the flue gas after filtration is discharged through air vent 32；Motor 19 is started, in tooth
In the presence of wheel 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 constantly overturns, and effectively increases drying and the pre-heat effect of coal 43, makes full use of waste heat in flue gas.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of spirit or essential attributes without departing substantially from the present invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as and limit involved claim.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped
Contain an independent technical scheme, this narrating mode of description is only that those skilled in the art should for clarity
Using description as an entirety, the technical scheme in each embodiment can also form those skilled in the art through appropriately combined
Understandable other embodiment.
Claims (4)
1. a kind of Industrial Boiler flue gas heat recovery device, including base, Industrial Boiler, smoke filtration case, coal prewarming
Case, gear drive group, negative pressure fan, discharge duct and cigarette ash collecting case, it is characterised in that the base left end upper surface is fixed
It is provided with Industrial Boiler；The top of the Industrial Boiler also connects and is provided with fume collection flexible pipe；The right part upper surface of the base
Column that two vertical directions arranged also is installed with；The top left hand of the column is installed with horizontally arranged
Cross bar, slides on cross bar and is provided with slide block, and the bottom of slide block is fixedly connected with the top of a range hood, under a range hood
Portion is interconnected with the top of fume collection flexible pipe；The left end of the cross bar is also equipped with emergency light；Pacify on the base
Smoke filtration case and coal prewarming case is respectively equipped between the column of dress, and wherein smoke filtration case is located at the upper of coal prewarming case
Side；The smoke filtration case is fixed by support bar and is erected between two columns；Fix peace in the bottom of the smoke filtration case
It is interconnected between bottom equipped with No. two dust shields, the top of No. two dust shields and smoke filtration case；The coal prewarming case
Rotated with two columns by rolling bearing and be connected；The coal prewarming case is arranged right below discharge duct, discharge duct
It is interconnected by negative pressure fan and aspirating air pipe；The upper surface of the discharge duct has also been uniformly arranged multiple and discharge duct
The exhaust hole that inside is interconnected；The discharge duct is located at the surface of cigarette ash collecting case, and cigarette ash collecting case is fixedly installed
Upper surface in base；The coal prewarming case includes coaming plate, Moveable lid body, side plate and rotating bar；The coaming plate is that surface is equal
Cloth is machined with meshed platy structure；The side of the side plate is fixedly connected with one end of rotating bar, the other end of rotating bar
Rotated with column by rolling bearing and be connected；The right-hand member upper surface of the base is also installed with motor, motor
Output shaft linked by gear drive group and rotary shaft, the rotation boom end on the right side of the other end of rotary shaft and coal prewarming case
It is fixedly connected；The top of the smoke filtration case offers air vent；The inside of the smoke filtration case is solid successively from top to bottom
Dingan County is equipped with multiple drainage screens；The lower surface corner of the base is installed with supporting leg, the side of the Industrial Boiler
Outer wall upper boiler charge door and visual window, wherein boiler feeding mouth are additionally provided with open-close type gear with the side wall junction of Industrial Boiler
Plate；The side outer wall bottom of the Industrial Boiler is additionally provided with ash hole, and the two ends bottom of No. two dust shields is fixed to be connected
It is connected to screen.
2. a kind of Industrial Boiler flue gas heat recovery device according to claim 1, it is characterised in that the coal
Preheating cabinet complements each other to form cylindrical cavity structure by the side plate of coaming plate and its two ends, and Moveable lid body is bolted mode
It is fixedly connected with coaming plate.
3. a kind of Industrial Boiler flue gas heat recovery device according to claim 1, it is characterised in that the gear
Transmission group includes driving belt, driving gear and driven gear, and wherein driving gear is linked with the output shaft of motor, driven
Gear is mutually linked with rotary shaft；Linked by driving belt between the driving gear and driven gear.
4. a kind of Industrial Boiler flue gas heat recovery device according to claim 1, it is characterised in that the filtration
3～5 of the quantity of net, the filter opening pore size on drainage screen from top to bottom are 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106500517A true CN106500517A (en) | 2017-03-15 |
| CN106500517B CN106500517B (en) | 2018-10-02 |
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ID=58333968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611216917.0A Active CN106500517B (en) | 2016-12-26 | 2016-12-26 | A kind of Industrial Boiler flue gas heat recovery device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106500517B (en) |
Cited By (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 |
| CN109813112A (en) * | 2019-03-07 | 2019-05-28 | 大唐东营发电有限公司 | A kind of residual heat from boiler fume circulation absorption system |
| CN112414021A (en) * | 2020-11-26 | 2021-02-26 | 德清领千木业有限公司 | Drying device is used in woodwork processing |
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| US20150267916A1 (en) * | 2014-03-19 | 2015-09-24 | Xiangyuan Wen | Fossil-fuel power generation system assisted by waste incineration |
| CN205640926U (en) * | 2016-01-23 | 2016-10-12 | 赵东星 | Refuse burning device |
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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 |
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| 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 |
| CN109813112A (en) * | 2019-03-07 | 2019-05-28 | 大唐东营发电有限公司 | A kind of residual heat from boiler fume circulation absorption system |
| 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 |
| CN112414021A (en) * | 2020-11-26 | 2021-02-26 | 德清领千木业有限公司 | Drying device is used in woodwork processing |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106500517B (en) | 2018-10-02 |
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