CN104034142B - Residual heat from boiler fume is utilized to dry the device and method containing lignin waste residue - Google Patents
Residual heat from boiler fume is utilized to dry the device and method containing lignin waste residue Download PDFInfo
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- CN104034142B CN104034142B CN201410269334.9A CN201410269334A CN104034142B CN 104034142 B CN104034142 B CN 104034142B CN 201410269334 A CN201410269334 A CN 201410269334A CN 104034142 B CN104034142 B CN 104034142B
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- waste residue
- exsiccator
- hothouse
- preheater
- conveyer belt
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- Solid Fuels And Fuel-Associated Substances (AREA)
- Gasification And Melting Of Waste (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses the device and method utilizing residual heat from boiler fume to dry containing lignin waste residue, exsiccator (5) is connected into by several hothouses (6), conveyer belt (10) several hothouses of traverse (6), the end of exsiccator (5) is installed and is transmitted motor (11), elevator (3) is installed in the front end of exsiccator (5), the exhaust outlet (9) of hothouse (6) is through pipeline communication cleaner unit (2), the air inlet (7) of hothouse (6), through pipeline communication preheater (1), is monolithically fabricated drying device。Water content rises on conveyer belt through lifting machine at the waste residue containing lignin of 30% ~ 80%；Exsiccator delivered to by the communicated band of waste residue, and after preheater waste heat, hot-air enters hothouse, and several hothouses drying sludge successively to water content is about 10%。Present configuration is simple, practical, safe and reliable, utilizes waste heat of boiler tail gas that waste residue is made fuel, turns waste into wealth, it is achieved energy again with, reduce high-temperature tail gas exhaust emission air。
Description
Technical field
The present invention relates to and a kind of utilize residual heat from boiler fume to dry the device and method containing lignin waste residue。
Technical background
At present, containing a large amount of lignin raw materials in the waste residue that a lot of biological factories, chemical plant produce, the expense of its processing method and generation allows manufacturer " headache is endlessly "。Wherein, plate-and-frame filtration waste residue after straw ethanol fermentation, furfural production producer use corn cob after waste residue, waste residue after the crushing sugar cane of sugar refinery etc. all contain lignin composition。And the fuel value of lignin is close to the 70% ~ 80% of mark coal combustion value, there is good value。But the water content being because general waste residue is higher, it is impossible to directly burn。Almost using steam without exception in the producer producing these waste residues, wherein producer is all that own boiler generation steam uses greatly。
Utilize the difference of the fuel of stage and boiler according to residual heat from boiler fume, generally its flue-gas temperature is about 120-250 degree, is discharged in air, is the waste to energy；Utilizing residual heat from boiler fume that the energy-saving and cost-reducing of system is had very important effect, this also becomes the problem that a lot of factory is exploring always and requiring to solve。Utilize at fume afterheat both at home and abroad at present and there are some utilizations to the fume afterheat of fuel-oil or fuel-gas boiler etc., it is most that to utilize form be enter the water in boiler by heat exchange heating, serve as " economizer ", the problems such as but it is higher to yet suffer from the flue-gas temperature after economizer, some heat waste。
Summary of the invention
It is an object of the invention to: provide a kind of and utilize residual heat from boiler fume to dry the device and method containing lignin waste residue, the fume afterheat utilizing boiler discarded is dried process to containing lignin waste residue, by cleaning, efficient heat exchange separates with steam and to realize drying the high fuel value waste residue in factory, make it become excellent boiler oil to provide for the steam in factory, the energy is made reasonably to make full use of, reduce production cost, reduce environmental pollution。
The technical solution of the present invention is: this drying device includes preheater, cleaner unit, elevator, transmitter and exsiccator, and exsiccator is in series by several hothouses, and the bottom of hothouse sets air inlet and slag-drip opening, and the top of hothouse sets exhaust outlet,
Transmitter includes conveyer belt and transmits motor, and conveyer belt is through several hothouses, and the end of exsiccator is installed and transmitted motor, elevator is installed in the front end of exsiccator, exhaust outlet is through pipeline communication cleaner unit, and air inlet, through pipeline communication preheater, is monolithically fabricated drying device。
Wherein, the air inlet of hothouse is installed volume damper。
Its drying means is:
(1) water content 30% ~ 80% the waste residue containing lignin rise to certain altitude and on the conveyer belt regulated the speed through lifting machine；
(2) exsiccator delivered to by the communicated band of waste residue after lifting, preheater adopts the waste heat of boiler tail gas air after dedusting, hot-air enters hothouse by volume damper, the exhaust outlet of each hothouse is connected for removing the dust occurred in dry run by pipeline with cleaner unit, several hothouses drying sludge successively is about 10% to water content, and the waste residue bottom hothouse that drops regularly is removed by slag-drip opening。
The effect of the present invention is: utilize residual heat from boiler fume, through several series connection hothouses, waste residue is dried process, it is achieved that drying high fuel value waste residue so that it is become excellent boiler oil。
Accompanying drawing explanation
Fig. 1 is single drying chamber structure schematic diagram。
Fig. 2 is elevator schematic diagram。
Fig. 3 is transmitter schematic diagram。
Fig. 4 is exsiccator schematic diagram。
Fig. 5 is preheater schematic diagram。
Detailed description of the invention
Below in conjunction with specific embodiment and accompanying drawing, the present invention is described in further detail。It will be appreciated by those skilled in the art that these embodiments present invention solely for the purpose of illustration, but not the scope being intended to limit the present invention in any manner。Wherein the height of material lifting determines according to the height in practical application；Material transportation determines according to the distance of actually required transport；Exsiccator is linked together by multiple hothouses, determines that hothouse connects quantity according to respective producer boiler tail gas amount out, determines the transmission speed of material transferring band in hothouse according to the characteristic (water content, waste residue loosening degree etc.) of waste residue material。
As Figure 1-5, this drying device includes preheater 1, cleaner unit 2, elevator 3, transmitter 4 and exsiccator 5, exsiccator 5 is in series by several hothouses 6, the bottom of hothouse 6 sets air inlet 7 and slag-drip opening 8, the top of hothouse 6 sets exhaust outlet 9, transmitter 4 includes conveyer belt 10 and transmits motor 11, conveyer belt 10 several hothouses 6 of traverse, the end of exsiccator 5 is installed and is transmitted motor 11, elevator 3 is installed in the front end of exsiccator 5, exhaust outlet 9 is through pipeline communication cleaner unit 2, and air inlet 7, through pipeline communication preheater 1, is monolithically fabricated drying device。
Wherein, the air inlet 7 of hothouse 6 is installed volume damper 12。
Embodiment 1:Straw ethanol fermentation liquid, through plate-and-frame filtration, obtains the straw ethanol fermentation waste residue of water content about 60%；Waste residue rises to, through material elevator, the transport that the height of 6.7 meters facilitates material to carry out on-site；Waste residue after lifting is transported in waste residue exsiccator 19.45 meters long and is dried, and exsiccator adopts 13 hothouses to connect, and waste residue material transmission band in the drying chamber moves dry with the speed of 0.05 meter per second；Air is heated to 230 degree by the preheated device of boiler exhaust gas, and air themperature is down to about 80 degree and is discharged into cleaner unit from the exhaust outlet of hothouse, and dried waste residue water content reaches 10.8%。
Embodiment 2:Caulis Sacchari sinensis obtains the waste residue of water content about 50% after squeezing；Waste residue rises to, through material elevator, the transport that the height of 6.7 meters facilitates material to carry out on-site；Waste residue after lifting is transported in waste residue exsiccator 19.45 meters long and is dried, and exsiccator adopts 13 hothouses to connect, and waste residue material transmission band in the drying chamber moves dry with the speed of 0.04 meter per second；Air is heated to 230 degree by the preheated device of boiler exhaust gas, and air themperature is down to about 100 degree and is discharged into cleaner unit from the exhaust outlet of hothouse, and dried waste residue water content reaches 9.7%。
Embodiment 3:Straw ethanol fermentation liquid, through plate-and-frame filtration, obtains the waste residue of water content about 60%；Waste residue rises to, through material lifting machine, the transport that the height of 6.7 meters facilitates material to carry out on-site；Waste residue after lifting is transported in waste residue exsiccator 19.45 meters long and is dried, and exsiccator adopts 13 hothouses to connect, and waste residue material transmission band in the drying chamber moves dry with the speed of 0.02 meter per second；Air is heated to 230 degree by the preheated device of boiler exhaust gas, and air themperature is down to about 140 degree and is discharged into cleaner unit from the exhaust outlet of hothouse, and dried waste residue water content reaches 7.3%。
Embodiment 4:It it is the waste residue obtaining water content about 35% after raw material production furfural with corn cob；Waste residue rises to, through material lifting machine, the transport that the height of 6.7 meters facilitates material to carry out on-site；Waste residue after lifting is transported in waste residue exsiccator 19.45 meters long and is dried, and exsiccator adopts 13 hothouses to connect, and waste residue material transmission band in the drying chamber moves dry with the speed of 0.2 meter per second；Air is heated to 230 degree by the preheated device of boiler exhaust gas, and air themperature is down to about 80 degree and is discharged into cleaner unit from the exhaust outlet of hothouse, and dried waste residue water content reaches 11.8%。
Above with specific embodiment, the present invention is described in detail, but on basis of the present invention, it is possible to it is made some modifications or improvements, and this will be apparent to those skilled in the art。Therefore, modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to the scope of protection of present invention。
Claims (1)
1. utilize residual heat from boiler fume to dry the device containing lignin waste residue, this drying device includes preheater (1), cleaner unit (2), elevator (3), transmitter (4) and exsiccator (5), exsiccator (5) is in series by several hothouses (6), the bottom of hothouse (6) sets air inlet (7) and slag-drip opening (8), the top of hothouse (6) sets exhaust outlet (9), transmitter (4) includes conveyer belt (10) and transmits motor (11), conveyer belt (10) several hothouses of traverse (6), the end of exsiccator (5) is installed and is transmitted motor (11), elevator (3) is installed in the front end of exsiccator (5), exhaust outlet (9) is through pipeline communication cleaner unit (2), air inlet (7) is through pipeline communication preheater (1), it is monolithically fabricated drying device；The air inlet (7) of hothouse (6) installs volume damper (12)；It is characterized in that the step of drying means is:
(1) water content is 30% ~ 80% rise to containing the boosted machine of waste residue of lignin on certain altitude the conveyer belt regulated the speed；
(2) exsiccator delivered to by the communicated band of waste residue after promoting, preheater adopts the boiler exhaust gas preheated air after dedusting, hot-air enters hothouse by volume damper, the exhaust outlet of each hothouse is connected for removing the dust occurred in dry run by pipeline with cleaner unit, several hothouses drying sludge successively is about 10% to water content, and the waste residue bottom hothouse that drops regularly is removed by slag-drip opening。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410269334.9A CN104034142B (en) | 2014-06-17 | 2014-06-17 | Residual heat from boiler fume is utilized to dry the device and method containing lignin waste residue |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410269334.9A CN104034142B (en) | 2014-06-17 | 2014-06-17 | Residual heat from boiler fume is utilized to dry the device and method containing lignin waste residue |
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| Publication Number | Publication Date |
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| CN104034142A CN104034142A (en) | 2014-09-10 |
| CN104034142B true CN104034142B (en) | 2016-06-22 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201527159U (en) * | 2009-10-21 | 2010-07-14 | 中节能(宿迁)生物质能发电有限公司 | Fuel dryer for biomass power plant |
| WO2011001410A1 (en) * | 2009-07-02 | 2011-01-06 | Gershon Ben-Tovim | Torrefaction apparatus |
| CN102661661A (en) * | 2012-05-30 | 2012-09-12 | 西安交通大学 | Smoke residual heat utilization system in doped burning biomass power plant |
| CN103196287A (en) * | 2013-04-22 | 2013-07-10 | 宁夏三友环保设备制造有限公司 | Box-type network chain driven charcoal material drying machine |
-
2014
- 2014-06-17 CN CN201410269334.9A patent/CN104034142B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011001410A1 (en) * | 2009-07-02 | 2011-01-06 | Gershon Ben-Tovim | Torrefaction apparatus |
| CN201527159U (en) * | 2009-10-21 | 2010-07-14 | 中节能(宿迁)生物质能发电有限公司 | Fuel dryer for biomass power plant |
| CN102661661A (en) * | 2012-05-30 | 2012-09-12 | 西安交通大学 | Smoke residual heat utilization system in doped burning biomass power plant |
| CN103196287A (en) * | 2013-04-22 | 2013-07-10 | 宁夏三友环保设备制造有限公司 | Box-type network chain driven charcoal material drying machine |
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| CN104034142A (en) | 2014-09-10 |
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Granted publication date: 20160622 Termination date: 20200617 |