CN101915424A - Method for utilizing industrial solid tobacco waste - Google Patents
Method for utilizing industrial solid tobacco waste Download PDFInfo
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- CN101915424A CN101915424A CN2010102897780A CN201010289778A CN101915424A CN 101915424 A CN101915424 A CN 101915424A CN 2010102897780 A CN2010102897780 A CN 2010102897780A CN 201010289778 A CN201010289778 A CN 201010289778A CN 101915424 A CN101915424 A CN 101915424A
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- 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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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Abstract
The invention discloses a method for utilizing industrial solid tobacco waste, which is characterized by comprising the following steps of: a, delivering the collected industrial tobacco waste and hot ash discharged by a coal-fired steam boiler in a weight ratio of 5:1-8:1 into a fluidized-bed gasification furnace, mixing steam generated by the coal-fired steam boiler and air, and introducing the mixture serving as a gasification agent into the gasification furnace; b, at the temperature of between 700 and 800 DEG C, reacting the mixed tobacco waste and the hot ash with the gasification agent in the coal-fired steam boiler, and converting into gasification gas; and c, performing cyclone separation on the gasification gas, directly introducing into the upper middle part of a combustion area of the coal-fired steam boiler for combustion so as to form a re-combustion area, and circulating partial steam generated by the coal-fired steam boiler and partial hot ash discharged again according to the step a into the fluidized-bed gasification furnace.
Description
Technical field
The present invention relates to a kind of method of utilizing of industrial solid tobacco waste.
Background technology
Tobacco waste comprises waste tobacco leaf that redrying processing enterprise and cigarette processing enterprise produce, offal, pipe tobacco, offal etc. in the tobacco leaf process.According to " Law of the People's Republic of China on Tobacco Monopoly " pertinent regulations, tobacco waste is high-risk article, must destroy.Inevitably to produce a certain amount of discarded object in the tobacco processing course, produce 7% fragment and flue dust approximately in the tobacco processing, also will isolate the offal that accounts for tobacco leaf weight 23%～25%.Cigar mill has utilized the part offal by the stem production line, some cigar mill produces reconstituted tobacco by roll-in method, paper process etc., partly utilized fragment and stalk to sign, a large amount of fragments, stalk are signed, offal but also have, especially in recent years along with the all-round popularization of beating and double roasting process, the offal waste material produces in a large number, and these short stalks and the long stalk of part are owing to can not effectively utilize, cause stock, or adopt methods such as burning, landfill to destroy.
Tobacco waste is as a kind of biomass resource, and its calorific value is about 3600 kilocalories/kg, and flammable value is higher, and simultaneously sulfur content is lower, and directly landfill or destroy by burning has both been wasted resource, again contaminated environment.The tobacco waste that industrial enterprise is produced is as biomass fuel recovery energy in addition, the heat that produces, steam etc. are incorporated the existing energy resource system of industrial enterprise into, can solve the problem of tobacco waste recycling on the one hand, also can reduce the fuel consumption of enterprise energy system on the other hand, play energy-saving and cost-reducing effect.Simultaneously, because the characteristic of carbon dioxide zero discharge in the biomass resource use, tobacco industrial enterprise can partly replace the use of fossil fuels such as coal, oil, gas with the tobacco waste recovery energy, thereby reduces the CO2 emissions in the tobacco industrial enterprise production process.
Patent CN101592335A discloses a kind of tobacco stem waste gasification system device and production technology thereof, and this technology is to utilize the downdraft fixed-bed gasification furnace that the offal of compound stalk forming is gasified, and boiler combustion system is directly sent in the combustion gas after the gasification.The deficiency that this technology exists is to handle tiny material, and the offal the like waste needs to send into fixed-bed gasification furnace after the compound stalk forming processing in advance.Patent CN101245249A discloses a dead meal and a garbage treating process that grows tobacco and produce in the processing, and this technology is that tobacco waste is pulverized, stirred, and adds to send into the syllogic reburner behind the deoxygenation aqua and carry out high-temperature retorting.The deficiency that this technology exists is that discarded object produces a large amount of accessory substance tar and coke powder through high-temperature retorting, and this processing technological flow and device are complicated simultaneously.
Summary of the invention
Purpose of the present invention provides a kind of method of utilizing of industrial solid tobacco waste just at existing weak point in the above-mentioned prior art.This method is coupled fluidized-bed gasification furnace and existing coal-fired steam boiler by the gentle gasification input of heat ash output, tobacco waste is converted into gasification gas with the gasifying agent reaction in gasification furnace, the elevated temperature heat ash part that coal-burning boiler produces is delivered to fluidized-bed gasification furnace, partly provide tobacco waste gasification institute calorific requirement as heat carrier, the combustion gas after the tobacco waste gasification transforms is directly sent into coal-burning boiler and is formed the reburning zone.
Purpose of the present invention can realize by following technique measures:
The method of utilizing of industrial solid tobacco waste of the present invention comprises the steps:
The heat ash that a, the industrial tobacco waste that will collect and coal-fired steam boiler are discharged is sent in the fluidized-bed gasification furnace by weight 5:1～8:1, simultaneously the steam that coal-fired steam boiler produced is mixed the back with air and sends in the gasification furnace as gasifying agent;
B, at 700-800
oUnder the condition of C, mixed tobacco waste and heat ash transform into gasification gas in fluidized-bed gasification furnace with after the gasifying agent reaction;
C, gasification gas are after cyclonic separation, burn and form the reburning zone in the middle and upper part of directly sending into the coal-fired steam boiler combustion zone; And the portion of hot ash of part steam that produces by coal-fired steam boiler and discharge set by step the method for a re-circulate in the fluidized-bed gasification furnace.
Described coal-fired steam boiler can be any one in coal-powder boiler, chain furnace or the fluidized-bed combustion boiler; Ignition temperature is at 900-1500
oC.
Described steam and air 1:8～1:3 by volume mix.
The invention has the advantages that:
A, industrial tobacco waste is gasified in fluid bed furnace, the heat ash part that is produced by coal-fired steam boiler provides the tobacco waste gasification required heat, can reduce air consumption in the gasification furnace, helps improving the fuel gases calorific value after the gasification;
B, the gasification gas that produces that will gasify are directly sent into coal-fired steam boiler burning utilization, have avoided the generation of accessory substance tar;
C, the pneumatic transmission that will gasify are gone into middle and upper part, coal-burning boiler combustion zone and are formed the reburning zone, the reduction composition NH in the gasification of the combustion process again gas
3, CH
4Deng the nitrogen oxide partial reduction that fire coal can be produced is nitrogen, thereby reduces the discharging of coal-fired process pollutant.
Description of drawings
Accompanying drawing is principle of the present invention and device schematic diagram (coal-fired steam boiler is example with the coal-powder boiler).
The specific embodiment
The present invention describes in further detail below with reference to embodiment (accompanying drawing):
As shown in Figure 1, the method for utilizing of industrial solid tobacco waste of the present invention comprises the steps:
The heat ash that a, the industrial tobacco waste that will collect and coal-fired steam boiler are discharged is sent in the fluidized-bed gasification furnace by weight 5:1～8:1, sends in the gasification furnace as gasifying agent after 1:8～1:3 mixes by volume with air with steam that coal-fired steam boiler produced simultaneously;
B, at 700-800
oUnder the condition of C, mixed tobacco waste and heat ash transform into gasification gas in fluidized-bed gasification furnace with after the gasifying agent reaction;
C, gasification gas are after cyclonic separation, burn and form the reburning zone in the middle and upper part of directly sending into the coal-fired steam boiler combustion zone; And the part steam that produces by coal-fired steam boiler and the portion of hot ash of discharging through the returning charge valve set by step the method for a re-circulate in the fluidized-bed gasification furnace.
The ignition temperature of described coal-fired steam boiler is at 900-1500
oC.
Claims (3)
- An industrial solid tobacco waste utilize method, it is characterized in that: described method comprises the steps:The heat ash that a, the industrial tobacco waste that will collect and coal-fired steam boiler are discharged is sent in the fluidized-bed gasification furnace by weight 5:1～8:1, simultaneously the steam that coal-fired steam boiler produced is mixed the back with air and sends in the gasification furnace as gasifying agent;B, at 700-800 oUnder the condition of C, mixed tobacco waste and heat ash transform into gasification gas in fluidized-bed gasification furnace with after the gasifying agent reaction;C, gasification gas are after cyclonic separation, burn and form the reburning zone in the middle and upper part of directly sending into the coal-fired steam boiler combustion zone; And the portion of hot ash of part steam that produces by coal-fired steam boiler and discharge set by step the method for a re-circulate in the fluidized-bed gasification furnace.
- Industrial solid tobacco waste according to claim 1 utilize method, it is characterized in that: described coal-fired steam boiler is any one in coal-powder boiler, chain furnace or the fluidized-bed combustion boiler; The ignition temperature of coal-fired steam boiler is at 900-1500 oC.
- Industrial solid tobacco waste according to claim 1 utilize method, it is characterized in that: described steam and air 1:8～1:3 by volume mix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102897780A CN101915424A (en) | 2010-09-25 | 2010-09-25 | Method for utilizing industrial solid tobacco waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102897780A CN101915424A (en) | 2010-09-25 | 2010-09-25 | Method for utilizing industrial solid tobacco waste |
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| CN101915424A true CN101915424A (en) | 2010-12-15 |
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| CN2010102897780A Pending CN101915424A (en) | 2010-09-25 | 2010-09-25 | Method for utilizing industrial solid tobacco waste |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247342A (en) * | 2016-09-30 | 2016-12-21 | 上海垒锦环境科技中心 | Coal and house refuse coupling combustion system |
| CN107011947A (en) * | 2017-04-28 | 2017-08-04 | 中国科学院广州能源研究所 | A kind of biomass gasification fired process control nitrogen oxides and granular material discharged method and the device for realizing this method |
| CN109990296A (en) * | 2017-12-29 | 2019-07-09 | 南京理工大学 | Smoke gas circulating type coal and rubbish coupling combustion system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5626088A (en) * | 1995-11-28 | 1997-05-06 | Foster Wheeler Energia Oy | Method and apparatus for utilizing biofuel or waste material in energy production |
| CN1304976A (en) * | 2000-10-11 | 2001-07-25 | 中国科学院山西煤炭化学研究所 | Process for preparing fuel gas by gasifying biomass and its gasifying reactor |
| CN101592335A (en) * | 2009-06-30 | 2009-12-02 | 刘善华 | Tobacco stem waste gasification system device and production technology thereof |
-
2010
- 2010-09-25 CN CN2010102897780A patent/CN101915424A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5626088A (en) * | 1995-11-28 | 1997-05-06 | Foster Wheeler Energia Oy | Method and apparatus for utilizing biofuel or waste material in energy production |
| CN1304976A (en) * | 2000-10-11 | 2001-07-25 | 中国科学院山西煤炭化学研究所 | Process for preparing fuel gas by gasifying biomass and its gasifying reactor |
| CN101592335A (en) * | 2009-06-30 | 2009-12-02 | 刘善华 | Tobacco stem waste gasification system device and production technology thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247342A (en) * | 2016-09-30 | 2016-12-21 | 上海垒锦环境科技中心 | Coal and house refuse coupling combustion system |
| CN107011947A (en) * | 2017-04-28 | 2017-08-04 | 中国科学院广州能源研究所 | A kind of biomass gasification fired process control nitrogen oxides and granular material discharged method and the device for realizing this method |
| CN107011947B (en) * | 2017-04-28 | 2019-06-21 | 中国科学院广州能源研究所 | A kind of biomass gasification fired process control nitrogen oxides and granular material discharged method and the device for realizing this method |
| CN109990296A (en) * | 2017-12-29 | 2019-07-09 | 南京理工大学 | Smoke gas circulating type coal and rubbish coupling combustion system |
| CN109990296B (en) * | 2017-12-29 | 2024-05-17 | 南京理工大学 | Flue gas circulation type coal and garbage coupling combustion system |
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Application publication date: 20101215 |