CN108413429A - A kind of boiler combustion bagasse dry technology scheme - Google Patents
A kind of boiler combustion bagasse dry technology scheme Download PDFInfo
- Publication number
- CN108413429A CN108413429A CN201810096353.4A CN201810096353A CN108413429A CN 108413429 A CN108413429 A CN 108413429A CN 201810096353 A CN201810096353 A CN 201810096353A CN 108413429 A CN108413429 A CN 108413429A
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- CN
- China
- Prior art keywords
- bagasse
- steam
- main pipe
- helicla flute
- turbine exhaust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
- F26B15/02—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in the whole or part of a circle
- F26B15/08—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in the whole or part of a circle in a vertical plane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/10—Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2201/00—Pretreatment of solid fuel
- F23K2201/20—Drying
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/02—Biomass, e.g. waste vegetative matter, straw
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses a kind of boiler combustion bagasse dry technology schemes, including medium-pressure boiler, Turbo-generator Set, gas turbine exhaust gas main pipe, Desuperheating device；Wherein, the outer wall of gas turbine exhaust gas main pipe arranges spiral conveying groove, medium pressure boiler is for steam to Turbo-generator Set, Turbo-generator Set transmission steam gives gas turbine exhaust gas main pipe, steam circulates from interlayer of the spiral conveying groove with the outer wall of gas turbine exhaust gas main pipe, bagasse enters helicla flute one end from steam counter-flow direction by rotary type beater, it is rotated by the rotation of helicla flute, bagasse is driven to exchange heat in helicla flute both sides and bottom, moisture content is evaporated, desuperheat is for sugar refining technology gas in last steam inflow Desuperheating device.Technical scheme of the present invention has recycled the loss of steam temperature reducing, make full use of the hyperthermia radiation source of superheated steam, it successfully solves bagasse moisture drying technical barrier, heat economy benefit to sugar refinery and the social benefit of environmentally friendly soot emissions is played and its important energy-saving meaning.
Description
Technical field
The present invention relates to biomass fuel technical field of drying, are specifically related to a kind of boiler combustion bagasse dry technology side
Case.
Background technology
The areas cane sugar manufacture industry Shu Wo pillar industry, the cane sugar factory being distributed in area have family more than 100, the boiler base of configuration
It is entirely biomass boiler in sheet, fuel mainly based on bagasse (sugarcane marrow), is required by environment protection emission, present cane sugar factory pot
Stove operation, which is not mixed generally, combusts coal.Cane sugar factory is big power consumer, in twentieth century five, the sixties, the enterprise of cane sugar factory
Family generally believes：Using bagasse as fuel, not burning up left can not also be handled in sugar refinery.Since bagasse papermaking, fibreboard etc. are comprehensive
The development using project is closed, bagasse is turned waste into wealth, and boiler thermal efficiency is improved, and reduces boiler combustible material consumption, is improved bagasse and is beaten
Packet rate is current cane sugar factory Energy Conservation direction.
For cane sugar factory biomass boiler, the bagasse moisture content height of burning can cause fire box temperature low, and burning is endless
Entirely, more using burning air, exhaust smoke level is big, and air-introduced machine easily draws aqueous vapor, and wind pipeline and air door, blade is caused easily to get rusty, addle,
It reasonably controls into stove bagasse moisture content, it is possible to reduce the quantity combusted of boiler improves boiler combustion efficiency.Just because of these sugarcanes
The presence of pulp water part questions and prospect, causes scientific research and the common concern of sugar manufacturing industry, and before more than ten years, the country also carries out sugarcane
The research of slag drying and practical application, but it is unreasonable due to designing, and technology is immature, the low easy blocking of safety coefficient, dry effect
The reasons such as fruit difference and deactivate.At present for the dry technology of bagasse technologies such as generally use heated-air drying, flue gas drying at home,
But effect income is little.
Invention content
In view of this, the object of the present invention is to provide a kind of boiler combustion bagasse dry technology scheme, it is satisfied with size stream
The bagasse of amount is dried, which makes full use of the loss heat of steam temperature reducing, bagasse dry technology through the invention, energy
Bagasse moisture content is successfully reduced by 10 percentage points or so from existing 48% or so, to sugar refinery boiler it is energy-saving play and its
Main effect.The moisture content of bagasse burning simultaneously declines, it is possible to reduce flue dust water content reduces the harm of fan belt water, to environmental protection
Discharge also functions to certain social benefit.
The technical solution adopted by the present invention is that：
A kind of boiler combustion bagasse dry technology scheme, including medium-pressure boiler, Turbo-generator Set, gas turbine exhaust gas are female
Pipe, Desuperheating device；Wherein, the outer wall of gas turbine exhaust gas main pipe arranges spiral conveying groove, and medium pressure boiler is for steam to steamer
Generating set, Turbo-generator Set transmission steam give gas turbine exhaust gas main pipe, steam female from spiral conveying groove and gas turbine exhaust gas
It circulates in the interlayer of the outer wall of pipe, bagasse enters helicla flute one end from steam counter-flow direction by rotary type beater, passes through spiral shell
The rotation of spin slot rotates, and bagasse is driven to exchange heat in helicla flute both sides and bottom, evaporates moisture content, and last steam flows into Desuperheating device
Desuperheat is for sugar refining technology gas.
Preferably, the gas turbine exhaust gas main pipe is two groups.
Preferably, the helicla flute top seal, heat preservation, and it is provided with air outlet at top, the water after being evaporated to bagasse
Vapour is discharged, and the steam after evaporation is collected by closed container, and condensing recovery is evacuated to by wind turbine.
Preferably, bagasse carrier, the bagasse after conveying is dry and adjusting are provided with outside the gas turbine exhaust gas main pipe
Bagasse amount afterwards is returned to together into stove sugarcane band, and then is delivered in boiler.
Preferably, the bagasse is specially in helicla flute both sides and bottom heat exchange：Bagasse and turbine discharge main pipe pipe
Road radiation source contact surface contact exchanges heat.
It is an advantage of the invention that：Technical scheme of the present invention has recycled the loss of steam temperature reducing, makes full use of superheated steam
Hyperthermia radiation source, successfully solve bagasse moisture drying technical barrier, heat economy benefit to sugar refinery and to environmentally friendly flue dust
The social benefit of discharge plays and its important energy-saving meaning.
Description of the drawings
Fig. 1 is the process flow chart of technical solution of the embodiment of the present invention；
Fig. 2 is the schematic cross-section of gas turbine exhaust gas main pipe in technical solution of the embodiment of the present invention.
In figure, 1, exhaust outlet；2, helicla flute rotation conveying bagasse；3, bagasse and blow-off line radiation source contact surface；4, vapour
Turbine discharge main pipe flow area.
Specific implementation mode
The present invention is described in further detail below in conjunction with the accompanying drawings.
Embodiment
A kind of boiler combustion bagasse dry technology scheme, as shown in Figure 1, including medium-pressure boiler, Turbo-generator Set, steamer
Machine exhaust main pipe, Desuperheating device；Wherein, the outer wall of gas turbine exhaust gas main pipe arranges spiral conveying groove, and medium pressure boiler is for steaming
For vapour to Turbo-generator Set, Turbo-generator Set transmission steam gives gas turbine exhaust gas main pipe, and steam is from spiral conveying groove and steamer
It circulates in the interlayer of the outer wall of machine exhaust main pipe, bagasse enters helicla flute one from steam counter-flow direction by rotary type beater
End is rotated by the rotation of helicla flute, bagasse is driven to exchange heat in helicla flute both sides and bottom, and moisture content is evaporated, and last steam flows into
Desuperheat is for sugar refining technology gas in Desuperheating device.
The gas turbine exhaust gas main pipe is two groups.
The helicla flute top seal, heat preservation, and it is provided with air outlet at top, the steam after being evaporated to bagasse is discharged,
Steam after evaporation is collected by closed container, and condensing recovery is evacuated to by wind turbine.
Bagasse carrier, the bagasse after conveying is dry and the bagasse after adjusting are provided with outside the gas turbine exhaust gas main pipe
Amount is returned to together into stove sugarcane band, and then is delivered in boiler.
As shown in Fig. 2, the bagasse is specially in helicla flute both sides and bottom heat exchange：Bagasse and turbine discharge main pipe
The contact of pipeline radiation source contact surface exchanges heat.
Cane sugar factory in process of production, (the desuperheat other than purging sieves sugared technique and the direct-furnish superheated steam of boiler can be used
It is decompressed to 180 DEG C of 0.6MPa, temperature), remaining sugar refining technology all uses the saturated vapor after desuperheat is depressured with vapour unit
(130 DEG C or so of pressure 0.2MPa or so, temperature), displacement and pot of the sugar refining technology vapour after Turbo-generator Set power generation
The initial steam amount (pressure and temperature reducing) that stove directly supplements.There are two types of the dynamic configurations of heat that sugar manufacturing industry uses at present：
1, middle press stove (boiler parameter pressure 3.82MPa, 450 DEG C of temperature；Turbo-generator Set initial steam pressure 3.43MPa,
435 DEG C of throttle (steam) temperature --- exhaust steam pressure 0.49MPa, 190 DEG C of exhaust temperature).
2, secondary middle press stove (boiler parameter pressure 2.45MPa, 400 DEG C of temperature；Turbo-generator Set initial steam pressure
2.35MPa, 390 DEG C of throttle (steam) temperature --- exhaust steam pressure 0.294MPa, 220 DEG C of exhaust temperature).
From described above it is recognised that no matter cane sugar factory configures the boiler of what parameter type, turbine discharge temperature
All at 200 DEG C (superheated steams), before entering evaporation I effect steam drums will desuperheat could use (micro- superheated steam to 130 DEG C or so
Or saturated vapor), then a larger desuperheat loss is there is when 200 DEG C (superheated steams) are cooled to 130 DEG C, although desuperheat
When spray atomizing desuperheating water can become steam in theory, be essentially all a large amount of hydrophobic outflows, base but in actual production
Exist in the two factors, have developed using turbine discharge pipeline outer wall radiant heat drying bagasse moisture content, is i.e. the present embodiment
Technical solution stops 30 second time, moisture content is reduced to 35% through testing the bagasse of moisture content 48% in turbine discharge pipeline outer wall
Left and right.Since the scale in each sugar refinery is different, needs the bagasse amount of sugarcane in 20-100 ton hours, take stage drying
Bagasse can also increase heat transfer area realization, calculated through my company and test data shows the turbine discharge that each sugar refinery configures
Flow can meet bagasse drying, and moisture content declines 10% or so, and turbine discharge temperature only declines about 15 DEG C or so, is still in
Superheated steam state, does not have any impact.
The different needs of bagasse dry amount and sugarcane moisture content in order to meet each sugar refinery, my company design turbine discharge temperature
Variable of the degree loss at 5 DEG C -25 DEG C, bagasse amount adjust bagasse amount size or increase in -150 ton hour of 20 ton hour
Blow-off line heat transfer area ensures that the dry of bagasse requires.
Claims (5)
1. a kind of boiler combustion bagasse dry technology scheme, it is characterised in that including medium-pressure boiler, Turbo-generator Set, steam turbine
Exhaust main pipe, Desuperheating device；Wherein, the outer wall of gas turbine exhaust gas main pipe arranges spiral conveying groove, and medium pressure boiler is for steam
To Turbo-generator Set, Turbo-generator Set transmission steam gives gas turbine exhaust gas main pipe, and steam is from spiral conveying groove and steam turbine
It circulating in the interlayer of the outer wall of exhaust main pipe, bagasse enters helicla flute one end from steam counter-flow direction by rotary type beater,
It is rotated by the rotation of helicla flute, bagasse is driven to exchange heat in helicla flute both sides and bottom, evaporate moisture content, last steam flows into desuperheat
Desuperheat is for sugar refining technology gas in device.
2. technical solution according to claim 1, it is characterised in that the gas turbine exhaust gas main pipe is two groups.
3. technical solution according to claim 1, it is characterised in that the helicla flute top seal, heat preservation, and pushing up
Portion is provided with air outlet, and the steam after being evaporated to bagasse is discharged, and the steam after evaporation is collected by closed container, is taken out by wind turbine
To condensing recovery.
4. technical solution according to claim 1, it is characterised in that be provided with bagasse outside the gas turbine exhaust gas main pipe
Conveyer belt, the bagasse after conveying is dry and the bagasse amount after adjusting are returned to together into stove sugarcane band, and then are delivered in boiler.
5. technical solution according to claim 1, it is characterised in that the bagasse exchanges heat in helicla flute both sides and bottom
Specially：Bagasse is contacted with turbine discharge main pipe pipeline radiation source contact surface and is exchanged heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810096353.4A CN108413429A (en) | 2018-01-31 | 2018-01-31 | A kind of boiler combustion bagasse dry technology scheme |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810096353.4A CN108413429A (en) | 2018-01-31 | 2018-01-31 | A kind of boiler combustion bagasse dry technology scheme |
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| CN108413429A true CN108413429A (en) | 2018-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810096353.4A Pending CN108413429A (en) | 2018-01-31 | 2018-01-31 | A kind of boiler combustion bagasse dry technology scheme |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111076506A (en) * | 2019-12-30 | 2020-04-28 | 临沂奥星化工有限公司 | A tertiary air flow drying device for CPVC processing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10103860A (en) * | 1996-09-27 | 1998-04-24 | Hitachi Zosen Corp | Drying method of waste and device therefor |
| JP2005265346A (en) * | 2004-03-19 | 2005-09-29 | Tomohiro Tofun | Drying device using heated steam |
| CN101817629A (en) * | 2010-03-30 | 2010-09-01 | 浙江大学 | Integrated method and device for sludge drying incineration and power generation |
| JP2010230230A (en) * | 2009-03-26 | 2010-10-14 | Iwate Prefecture | Boiler system |
| CN105276969A (en) * | 2015-11-06 | 2016-01-27 | 西安热工研究院有限公司 | Exhaust gas water and waste heat recovery integrated power generation system capable of drying brown coal |
-
2018
- 2018-01-31 CN CN201810096353.4A patent/CN108413429A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10103860A (en) * | 1996-09-27 | 1998-04-24 | Hitachi Zosen Corp | Drying method of waste and device therefor |
| JP2005265346A (en) * | 2004-03-19 | 2005-09-29 | Tomohiro Tofun | Drying device using heated steam |
| JP2010230230A (en) * | 2009-03-26 | 2010-10-14 | Iwate Prefecture | Boiler system |
| CN101817629A (en) * | 2010-03-30 | 2010-09-01 | 浙江大学 | Integrated method and device for sludge drying incineration and power generation |
| CN105276969A (en) * | 2015-11-06 | 2016-01-27 | 西安热工研究院有限公司 | Exhaust gas water and waste heat recovery integrated power generation system capable of drying brown coal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111076506A (en) * | 2019-12-30 | 2020-04-28 | 临沂奥星化工有限公司 | A tertiary air flow drying device for CPVC processing |
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Effective date of registration: 20180921 Address after: 546100 Laibin City Zhenxing Road, the Guangxi Zhuang Autonomous Region, 1 residential buildings 3-2 Applicant after: GUANGXI FEIPENG ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. Applicant after: Guangxi Laibin East Sugar Group Co., Ltd. He Guolin Tan Yusong Applicant after: He Guolin Applicant after: Qin Yusong Address before: 545000 Laibin City Zhenxing Road, the Guangxi Zhuang Autonomous Region, 1 residential buildings 3-2 Applicant before: GUANGXI FEIPENG ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. |