CN207163175U - A kind of novel wooden fiber multisection type flash drying device - Google Patents
A kind of novel wooden fiber multisection type flash drying device Download PDFInfo
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- CN207163175U CN207163175U CN201721030891.0U CN201721030891U CN207163175U CN 207163175 U CN207163175 U CN 207163175U CN 201721030891 U CN201721030891 U CN 201721030891U CN 207163175 U CN207163175 U CN 207163175U
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Abstract
A kind of novel wooden fiber multisection type flash drying device is the utility model is related to, belongs to density board production technical field of drying.Technical scheme is：Drying duct（7）One end be connected with main air intake drying system, the other end and cyclone separator（8）Connection, in drying duct（7）It is provided with charging aperture（6）；The charging aperture（6）With cyclone separator（8）Between drying duct（7）It is provided with subsidiary conduit（20）, subsidiary conduit（20）It is connected with auxiliary air inlet drying system.The utility model on drying duct by setting auxiliary air inlet drying system, realize the wood fibre multisection type flash drying of wood fibre, on the premise of ensureing that import does not reduce production capacity and import medium temperature, it is ensured that the moisture content of cyclone entrance fiber, ensure dry effect；Especially rainy season and winter, the quality and yield of product are ensure that, while also reclaimed the heat of 120 DEG C of hot water caused by air intake drying system, there is good economic benefit.
Description
Technical field
A kind of novel wooden fiber multisection type flash drying device is the utility model is related to, belongs to density board production and dries skill
Art field.
Background technology
So-called fiber dodges anxious formula pneumatic conveying drying（Flash drying）It is exactly that wet fiber is mixed with drying thermal medium（By 15~
The ㎏ bone dry fiber ratios of 20m3 air/1）, fiber is conveyed in suspended state in pipeline, the moisture of its wet fiber is because of the gas that absorbs heat
Change and taken away by dried medium, reach the purpose of fiber drying.
At present, it is main using the method for dodging anxious formula pneumatic conveying drying in MDF production, and in MDF production process, it is fine
The dry quality of dimension directly affects every physical and mechanical property of finished product.Basic demand to fiber drying is：It is dried
Moisture content meets technological requirement, and uniformity.Reach this purpose, it is necessary to carry out to influenceing dry many technological parameters
Rational control：Dried medium temperature is controlled, is one of dry most important technological parameter.Medium temperature is entered with drying duct
Mouth temperature is control benchmark, it is desirable to which temperature is appropriate, and keeps stable, can just obtain the dry fibers of moisture content uniformity.By
Fiber firing accident easily occurs more than 170 degree in medium temperature.Medium temperature is caused to be improved in entrance, at the same it is also tight
Drying efficiency is have impact on again.Therefore, at present in production to no more than 170 degree of the control range of dried medium temperature.In background
Under technical conditions, cause drying duct import medium temperature to be restricted, so will result in production in if production capacity fluctuation or
In the case where outside air is clammy, wet fiber cannot be dried sufficiently, and outlet moisture content does not reach production requirement, serious shadow
Ring subsequent product quality；And in order that outlet fiber moisture reaches requirement, the method that can only take reduction production capacity causes yield
It is greatly reduced, it is especially especially prominent in rainy season and winter, such situation.Meanwhile prior art dries heat exchanger to cold wind
A large amount of 120 DEG C or so of hot water is produced after heat exchange, this part hot water also result in heat currently without being utilized well
Loss.
Utility model content
The utility model purpose is to provide a kind of novel wooden fiber multisection type flash drying device, by using two sections with
Enterprising heated-air drying mode, according to operating mode and the air quantity and temperature of weather conditions regulation segmentation hot blast, it is ensured that cyclone separator goes out
The moisture content of mouth fiber, ensures product quality and production capacity, while used heat is reclaimed, and does not cause extra energy consumption, solves
Above mentioned problem present in background technology.
The technical solution of the utility model is：
A kind of novel wooden fiber multisection type flash drying device, including charging aperture, drying duct, cyclone separator, master
Air intake drying system and auxiliary air inlet drying system, one end of drying duct are connected with main air intake drying system, the other end and rotation
Wind separator is connected, and charging aperture is provided with drying duct；The main air intake drying system is by air inlet one, heat exchanger one, wind
Door two, blower fan one, steam inlet, air outlet one and hot water outlet one are formed, and heat exchanger one is provided with air inlet one, steam enters
Mouth, air outlet one and hot water outlet one, air outlet one pass through the connecting fan one of pipeline one, the outlet connection drying tube of blower fan one
Road；Drying duct between the charging aperture and cyclone separator is provided with subsidiary conduit, and subsidiary conduit is dried with auxiliary air inlet
System connects；The auxiliary air inlet drying system is by air inlet two, heat exchanger two, air door three, blower fan two, hot water inlet, hot water
Outlet two, steam supply port and air outlet two are formed, and heat exchanger two is provided with air inlet two, hot water inlet, the and of hot water outlet two
Air outlet two, hot water inlet are connected with the hot water outlet one of main air intake drying system by pipeline two, and air outlet two passes through pipeline
Three are connected with blower fan two, the outlet connection subsidiary conduit of blower fan two；The road two is provided with steam supply port.
The auxiliary air inlet drying system, quantity are true according to drying duct length and temperature of charge situation for more than a set of
Tricks is set surely, it is therefore an objective to the material in drying duct is maintained at the scope of technique needs.
The pipeline one is provided with air door one, air door one and atmosphere, for being adjusted into the temperature of drying duct hot blast
Degree, is allowed to be maintained at less than 170 degree.
Air inlet one, air inlet two are set respectively before the heat exchanger one, heat exchanger two, entered for extraneous cold wind；Institute
Air door two is set before stating blower fan one, for adjusting the hot blast air quantity for entering drying duct；Air door three is set before the blower fan two, used
To adjust the hot blast air quantity into subsidiary conduit.
The heat exchanger one is heated using steam to cold wind；Steam is entered by condensed hot water after heat exchanger one
Heat exchanger two, the cold wind for entering heat exchanger two is heated.
Extraneous cold wind enters heat exchanger one through air inlet one, and the steam with entering through steam inlet in heat exchanger one enters
Row heat exchange, produces 200 DEG C of hot blasts, regulation of the hot blast through air door one enters blower fan one, subsequently into drying duct, to by charging aperture
Me fibrous slurry into drying duct is dried；Temperature is 160-170 DEG C after me fibrous slurry mixes with hot blast, and me fibrous slurry exists
It is dried, and advances in drying duct；The moisture of me fibrous slurry is constantly taken away by hot blast, and me fibrous slurry temperature gradually reduces；
Me fibrous slurry temperature is down to 70-80 DEG C of opening position in drying duct, sets subsidiary conduit, connects with auxiliary air inlet drying system
Connect；
Steam caused 120 DEG C of hot water after being exchanged heat by heat exchanger one, as the thermal source of auxiliary air inlet drying system, enter
The heat exchanger two of auxiliary air inlet drying system, the cold wind for entering heat exchanger two is heated；During the heat source insufficiency of heat exchanger two,
Steam is supplemented by steam supply port, the hot blast for making heat exchanger two produce 100 DEG C, by subsidiary conduit to 70- in drying duct
80 DEG C of me fibrous slurry carries out heating drying；
With the traveling of me fibrous slurry, if the me fibrous slurry temperature in drying duct is down to 70-80 DEG C again, then one is set
Auxiliary air inlet drying system is covered, heating drying is carried out to 70-80 DEG C in drying duct of me fibrous slurry；Until entering cyclonic separation
Device, isolate the qualified fiber of moisture content through cyclone separator and enter subsequent handling；The temperature of Cyclone outlet hot blast is
60℃。
Auxiliary air inlet drying system condensed water is also recycled, and delivers to heating center as oxygen-eliminating device moisturizing.
The advantages of the utility model and good effect are：It is real by setting auxiliary air inlet drying system on drying duct
The wood fibre multisection type flash drying of existing wood fibre, the premise of production capacity and import medium temperature is not reduced in guarantee import
Under, it is ensured that the moisture content of cyclone entrance fiber, ensure dry effect；Especially rainy season and winter, it ensure that product
Quality and yield, while also reclaimed the heat of 120 DEG C of hot water caused by air intake drying system, easily realized, facilitated feasible, had
Good economic benefit.
Brief description of the drawings
Fig. 1 is the utility model embodiment process chart；
In figure：Air inlet 1, heat exchanger 1, air door 1, air door 24, blower fan 1, charging aperture 6, drying duct 7, rotation
Wind separator 8, steam inlet 9, hot water outlet 1, air inlet 2 11, heat exchanger 2 12, air door 3 13, blower fan 2 14, hot water
Import 15, hot water outlet 2 16, steam supply port 17.Air outlet 1, pipeline 1, subsidiary conduit 20, air outlet 2 21, pipe
Road 2 22, pipeline 3 23.
Embodiment
With reference to embodiment, the utility model will be further described.
A kind of novel wooden fiber multisection type flash drying device, including charging aperture 6, drying duct 7, cyclone separator 8,
Main air intake drying system and auxiliary air inlet drying system, one end of drying duct 7 are connected with main air intake drying system, the other end with
Cyclone separator 8 is connected, and charging aperture 6 is provided with drying duct 7；The main air intake drying system is by air inlet 1, heat exchanger
One 2, air door 24, blower fan 1, steam inlet 9, air outlet 1 and hot water outlet 1 are formed, heat exchanger 1 be provided with into
Air port 1, steam inlet 9, air outlet 1 and hot water outlet 1, air outlet 1 by the connecting fan 1 of pipeline 1,
The outlet connection drying duct 7 of blower fan 1；Drying duct 7 between the charging aperture 6 and cyclone separator 8 is provided with auxiliary
Pipeline 20, subsidiary conduit 20 are connected with auxiliary air inlet drying system；The auxiliary air inlet drying system is by air inlet 2 11, heat exchange
Device 2 12, air door 3 13, blower fan 2 14, hot water inlet 15, hot water outlet 2 16, steam supply port 17 and the structure of air outlet 2 21
Into heat exchanger 2 12 is provided with air inlet 2 11, hot water inlet 15, hot water outlet 2 16 and air outlet 2 21, hot water inlet 15
It is connected with the hot water outlet 1 of main air intake drying system by pipeline 2 22, air outlet 2 21 passes through pipeline 3 23 and blower fan two
14 connections, the outlet connection subsidiary conduit 20 of blower fan 2 14；The road 2 22 is provided with steam supply port 17.
The auxiliary air inlet drying system, quantity are true according to the length of drying duct 7 and temperature of charge situation for more than a set of
Tricks is set surely, it is therefore an objective to the material in drying duct 7 is maintained at the scope of technique needs.
The pipeline 1 is provided with air door 1, air door 1 and atmosphere, for being adjusted into the hot blast of drying duct 7
Temperature, be allowed to be maintained at less than 170 degree.
Air inlet 1, air inlet 2 11 are set respectively before the heat exchanger 1, heat exchanger 2 12, entered for extraneous cold wind
Enter；Air door 24 is set before the blower fan 1, for adjusting the hot blast air quantity for entering drying duct；Set before the blower fan 2 14
Air door 3 13, for adjusting the hot blast air quantity for entering subsidiary conduit 20.
The heat exchanger 1 is heated using steam to cold wind；Steam is entered by condensed hot water after heat exchanger 1
Enter heat exchanger 2 12, the cold wind for entering heat exchanger two is heated.
Extraneous cold wind enters heat exchanger 1, the steaming in heat exchanger 1 with entering through steam inlet 9 through air inlet 1
Vapour is exchanged heat, and produces 200 DEG C of hot blasts, regulation of the hot blast through air door 1 enters blower fan 1, right subsequently into drying duct 6
The me fibrous slurry for entering drying duct 6 by charging aperture 7 is dried；Temperature is 160-170 DEG C after me fibrous slurry mixes with hot blast,
Me fibrous slurry is dried in drying duct 6, and advances；The moisture of me fibrous slurry is constantly taken away by hot blast, me fibrous slurry temperature
Degree gradually reduces；Me fibrous slurry temperature is down to 70-80 DEG C of opening position in drying duct 6, subsidiary conduit 20 is set, with auxiliary
Air intake drying system connects；
Steam caused 120 DEG C of hot water after being exchanged heat by heat exchanger 1, as the thermal source of auxiliary air inlet drying system, enter
Enter the heat exchanger 2 12 of auxiliary air inlet drying system, the cold wind for entering heat exchanger two is heated；The thermal source of heat exchanger two is not
When sufficient, steam is supplemented by steam supply port 17, the hot blast for making heat exchanger two produce 100 DEG C, by subsidiary conduit 20 to drying
70-80 DEG C of me fibrous slurry carries out heating drying in pipeline 6；
With the traveling of me fibrous slurry 7, if the me fibrous slurry temperature in drying duct 6 is down to 70-80 DEG C again, then set
A set of auxiliary air inlet drying system, heating drying is carried out to 70-80 DEG C in drying duct 6 of me fibrous slurry；Until entering whirlwind
Separator 8, isolate the qualified fiber of moisture content through cyclone separator 8 and enter subsequent handling；Cyclone separator 8 exports hot blast
Temperature is 60 DEG C.
Auxiliary air inlet drying system condensed water is also recycled, and delivers to heating center as oxygen-eliminating device moisturizing.
The air door 1 set between the heat exchanger 1 and air door 24 is used to supplement cold wind so that into drying duct
Hot blast temperature in claimed range.
Referring to the drawings 1, embodiment of the present utility model is simply provided with a set of auxiliary air inlet on drying duct 6 and dries system
System, if drying duct 6 is longer, it can also set two sets or three sets auxiliary air inlet drying systems carry out dodging anxious formula drying.It is actual
According to actual production situation, consider the factors such as power consumption, energy consumption, determine the number of auxiliary air inlet drying system
Amount, meets production requirement.
Auxiliary air inlet drying system is mainly using the waste heat of air intake drying system as thermal source, if heat source insufficiency, it is impossible to maintain
Auxiliary air inlet drying system exports hot blast temperature, then can supplement steam on a small quantity by steam supply port 17, keeps auxiliary air inlet
Drying system exports hot blast temperature.
Claims (3)
- A kind of 1. novel wooden fiber multisection type flash drying device, it is characterised in that：Including charging aperture（6）, drying duct （7）, cyclone separator（8）, main air intake drying system and auxiliary air inlet drying system, drying duct（7）One end and main air intake Drying system connects, the other end and cyclone separator（8）Connection, in drying duct（7）It is provided with charging aperture（6）；The master enters Drying system is air-dried by air inlet one（1）, heat exchanger one（2）, air door two（4）, blower fan one（5）, steam inlet（9）, air outlet one （18）With hot water outlet one（10）Form, heat exchanger one（2）It is provided with air inlet one（1）, steam inlet（9）, air outlet one （18）With hot water outlet one（10）, air outlet one（18）Pass through pipeline one（19）Connecting fan one（5）, blower fan one（5）Outlet Connect drying duct（7）；The charging aperture（6）With cyclone separator（8）Between drying duct（7）It is provided with subsidiary conduit （20）, subsidiary conduit（20）It is connected with auxiliary air inlet drying system；The auxiliary air inlet drying system is by air inlet two（11）, change Hot device two（12）, air door three（13）, blower fan two（14）, hot water inlet（15）, hot water outlet two（16）, steam supply port（17） With air outlet two（21）Form, heat exchanger two（12）It is provided with air inlet two（11）, hot water inlet（15）, hot water outlet two（16） With air outlet two（21）, hot water inlet（15）With the hot water outlet one of main air intake drying system（10）Pass through pipeline two（22）Even Connect, air outlet two（21）Pass through pipeline three（23）With blower fan two（14）Connection, blower fan two（14）Outlet connection subsidiary conduit （20）；The road two（22）It is provided with steam supply port（17）.
- A kind of 2. novel wooden fiber multisection type flash drying device according to claim 1, it is characterised in that：It is described auxiliary Air intake drying system is helped, quantity is more than a set of.
- A kind of 3. novel wooden fiber multisection type flash drying device according to claim 1, it is characterised in that：The pipe Lu Yi（19）It is provided with air door one（3）, air door one（3）With atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721030891.0U CN207163175U (en) | 2017-08-17 | 2017-08-17 | A kind of novel wooden fiber multisection type flash drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721030891.0U CN207163175U (en) | 2017-08-17 | 2017-08-17 | A kind of novel wooden fiber multisection type flash drying device |
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| Publication Number | Publication Date |
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| CN207163175U true CN207163175U (en) | 2018-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721030891.0U Active CN207163175U (en) | 2017-08-17 | 2017-08-17 | A kind of novel wooden fiber multisection type flash drying device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314658A (en) * | 2017-08-17 | 2017-11-03 | 文安县天华密度板有限公司 | A kind of novel wooden fiber multisection type flash drying method and apparatus |
-
2017
- 2017-08-17 CN CN201721030891.0U patent/CN207163175U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314658A (en) * | 2017-08-17 | 2017-11-03 | 文安县天华密度板有限公司 | A kind of novel wooden fiber multisection type flash drying method and apparatus |
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