CN101830461B - Method for making active carbon with powdery wooden materials by using one-step physical method and carbon activation furnace - Google Patents
Method for making active carbon with powdery wooden materials by using one-step physical method and carbon activation furnace Download PDFInfo
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- CN101830461B CN101830461B CN2010101810277A CN201010181027A CN101830461B CN 101830461 B CN101830461 B CN 101830461B CN 2010101810277 A CN2010101810277 A CN 2010101810277A CN 201010181027 A CN201010181027 A CN 201010181027A CN 101830461 B CN101830461 B CN 101830461B
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Abstract
The invention discloses a method for making active carbon by using powdery wooden materials such as bamboo, sawdust and the like with a one-step physical method and a carbon activation furnace capable of mechanically and continuously discharging, and the invention aims to produce the active carbon with the powdery wooden materials by using the one-step physical activation method and make the activation materials of the activation carbon by utilizing a heating chemical method with high-temperature tail gas generated during the physical activation method so as to realize the comprehensive utilization of the waste heat of high-temperature glue gas. The powdery wooden materials are made into columnar granules with a molding granulator, the columnar granules are added into the carbon activation furnace, and combustible gas generated during the thermal decomposition of the wooden granular materials is respectively introduced into combustion chambers (5, 13 and 15) for combustion. Water vapor needed by the activation is introduced from the upper part of the activation carbon, and the water vapor is then introduced into carbon in an activation area after being preheated in a carbonization area for temperature raising, which is beneficial to improving the activation reaction effect of the water vapor and the carbon. The high-temperature activation tail gas generated from the activation furnace is introduced into the activation furnace for making the active carbon with a chemical method to heat activation materials from a flue gas outlet (11) through a flue.
Description
One, technical field
The present invention relates to the process and utilization technology of bamboo wood machining residues, be specifically related to utilize the method and the charcoal activation equipment of powdery wood material one one-step physical activation method preparing active carbons such as bamboo wood chip.
Two, technical background
Wood material production process of active carbon mainly contains two kinds: a kind of is to utilize powdery wood material such as bamboo and wood bits, and using zinc chloride or phosphoric acid is the chemical activation method of agent of living; Another kind is to be raw material with wood (bamboo) charcoal, fruit shell carbon, wood (bamboo) bits charcoal etc., uses water vapor or the stack gas physical activation method as acvator.Because China strengthens the forest conservation dynamics day by day, the charcoal resource reduces day by day, and in addition, along with the increase of Activated Carbon Production to shell raw materials requirement amount, the situation that supply falls short of demand appears in charcoal, the fruit shell carbon raw material of producing gac with water vapor physics method.Gac is a kind of product of high energy consumption; No matter be that physics method or chemical method are produced gac; All need consume fuel such as coal or bavin, physics method or chemical method are produced the production technique of gac separately, and pyritous activation tail gas is directly arranged in the air through chimney; Exist the situation of thermal waste, fuel cost is higher.Technology as physics method and chemical method being produced gac organically combines, and utilizes the high-temperature activation tail gas of physics method to add the activated material of thermochemical method, with practicing thrift the fuel consumption of producing gac greatly, reduces the production cost of gac.The raw material that chemical method is produced gac is powdery wood materials such as bamboo and wood bits; At present, produce gac with powdery wood material physics methods such as bamboo and wood bits and must after charing, make activated carbon product through the activation of smoldering stove more earlier, the production technique of this method falls behind; Fuel consumption is big; Energy dissipation is serious, and unstable product quality, and powdery wood material one one-step physical activation method such as bamboo and wood bits also of no use is produced the technology of gac so far.Produce gac with powdery wood material one one-step physical activation methods such as bamboo and wood bits; Both can the inflammable gas that produce in the wood material carbonization process have been burnt in the combustion chamber of activation section and replenish the reactivation process necessary energy; Reduce the fuel consumption of activation furnace; Simultaneously, the activation high-temperature activation tail gas of physics method capable of using again heats the material to be activated of chemical activation stove, realizes reducing the doulbe-sides' victory effect of fuel cost and energy-saving and emission-reduction.The present invention just is based on the method and the charcoal activation equipment of a kind of powdery wood material one one-step physical activation method preparing active carbon of researching and developing under this background.
At present; Utilize wood chip to prepare having of raw material of wood-charcoal material: application number is that 200310106908.2 patent discloses a kind of method of utilizing rice husk or wood chip to make charcoal; It is characterized in that extruding of processed material or compression molding, then with the charing that in charring furnace, progressively heats up of moulding article; Application number is that 200810015746.4 patent discloses the technique for producing machine-made charcoal that utilizes wood chip system clean environment firendly; Application number be 200310120841.8 patent to disclose with agriculture and forestry by-products such as rice husk, stalk, wood chips be raw material, process the carbon black meal through charing, pulverizing, cracking, the process step that is ground into meal; Application number is that 200410060856.4 patent discloses agricultural crop straws such as starting material such as wood chip and rice straw are carried out charing earlier, then through pulverizing and adding tackiness agent and process the preparation method that chafing dish is roasted special-purpose charcoal; Patent ZL94101744.3 discloses the technology of wood chip with the zinc chloride activation method preparing active carbon; Patent ZL88102426 discloses the technology of wood chip phosphoric acid method preparing active carbon.Do not see with powdery wood materials such as bamboo and wood bits and take the method for an one-step physical activation method preparing active carbon and the report of charcoal activation equipment.
Three, summary of the invention
Content of the present invention is exactly to adopt the method and the technology of an one-step physical activation method preparing active carbon with powdery wood materials such as bamboo and wood bits, develops the charcoal activation equipment of the continuous discharging of a kind of mechanize simultaneously.Purpose is to produce with chemical method the powdery wood materials such as bamboo and wood bits of gac; Adopt an one-step physical method to produce activated carbon product, and the inflammable gas that the wood material pyrolysis charring produces introduced in the combustion chamber of carbon activation furnace activation section burning to replenish the required heat energy of priming reaction; The used water vapor of priming reaction feeds the carbon activation furnace from dry char zone, makes water vapor obtain leading in the activated material behind the pre-heating temperature elevation again and carries out priming reaction with charcoal, to improve activation effect.
Content of the present invention is achieved in that dries powdery wood materials such as bamboo and wood bits; And the powdery wood material is processed diameter 6～10mm with wood chip moulding nodulizer; The cylindrical particle of long 10～20mm; Then PM for particulate matter is mentioned the furnace roof of vertical carbon activation furnace with lift, be added in the feed bin (9) of carbon activation furnace.The wood substance grain thing carries out continuous discharging through the activated material after charing and the activation through extraction line (3) cooling and through the discharging commentaries on classics rake (2) that is driven by reducing motor from top to bottom in charcoal activation tube (10).The wood substance grain thing leads to respectively from center vapor pipe (11) the combustion chamber (5), (14), (16) of activation furnace middle and lower part at the inflammable gas that the char zone pyrolysis charring produces; And pass through gas inlet (4), (15), (20) respectively to an amount of air of each combustion chamber feeding; Make gas fuel burning with the supplementary heating activation tube, help fuel economy.The needed water vapor of activation feeds the vapour passage of activation tube from the top of activation furnace, so that after char zone obtains pre-heating temperature elevation, feed in the charcoal of region of activation, help improving the priming reaction effect of water vapor and charcoal again.The high-temperature activation tail gas (stack gas) that activation furnace produces leads to heat-activated material the activation furnace of producing activated carbon by chemical method from flue gas outlet (12) through flue.
Four, description of drawings
Fig. 1 is the carbon activation furnace facade cross-sectional schematic of an one-step physical method preparing active carbon, and (1) is the stove hall of heating with roasting kiln; (2) be the discharging commentaries on classics rake of activated material, process by steel; (3) be the activated material extraction line, process with steel plate; (4), (15), (20) are gas inlet; (5), (7), (14), (16) are the combustion chamber of activation furnace; (6) be temperature thermocouple; (8) be steam pipe, process with stainless steel; (9) be former feed bin; (10) be the charcoal activation tube, process with refractory materials; (11) be the central row tracheae; (12) be the outlet of activation tail gas; (13) be the pyrolysis gas transfer lime, process with high temperature resistant stainless steel; (17) be the carbon activation furnace exterior wall, be stained with brick one-tenth with common; (18) be the heat insulating layer; (19) be refractory wall, be built into resistant to elevated temperatures refractory brick; (21) be the activation furnace pillar stiffener, form by the Steel Concrete cast.
Fig. 2 is the sectional view in A-A cross section among Fig. 1, and part description is the same.
Five, embodiment
Build one two row, the six rows vertical carbon activation furnace that integrates charcoal, activation of totally 12 charcoal activation tubes by design of the present invention; Make raw material with cedar sawdust; One one-step physical activation method is produced gac; And the rotary kiln that the high-temperature activation tail gas that utilizes the physics method to produce comes the heated phosphoric method to produce gac is explained practical implementation process of the present invention for example: the cedar sawdust that will pass through screening dry to water cut less than 20%; With wood chip moulding nodulizer wood chip is pressed into diameter 8mm, the cylindrical particle of long 10～20mm.Granule materials is mentioned the furnace roof of vertical carbon activation furnace with lift, be added in the feed bin (9) of activation furnace.The wood substance grain thing carries out continuous discharging through the activated material after charing and the activation through extraction line (3) cooling and through the discharging commentaries on classics rake (2) that is driven by buncher and retarding mechanism from top to bottom in charcoal activation tube (10).The inflammable gas that the wood substance grain thing produces when pyrolysis charring leads to respectively the combustion chamber (5), (14), (16) of activation furnace middle and lower part from center vapor pipe (11); Feed an amount of air to each combustion chamber respectively through gas inlet (4), (15), (20); Make gas fuel burning with the supplementary heating activation tube, help fuel economy.The vapour passage of carbonizing tube feeds the needed water vapor of activation from carbon activation furnace top, after char zone obtains pre-heating temperature elevation, feeds in the charcoal of activation tube again, helps improving the priming reaction effect of water vapor and charcoal.The high-temperature flue gas that extra fuel produces in Lu Tang (1) burning back be from bottom to top the serpentine passage respectively through combustion chamber (16), (5), (14), (7) heat-activated stove after; Lead to the burner of the rotary activated furnace of producing activated carbon by chemical method again through flue from flue gas outlet (12); And activation section through rotary kiln and charing section heating material wherein, arrange in the air through chimney from the stove tail of rotary kiln at last.
With the cedar sawdust is raw material, adopts process method of the present invention and carbon activation furnace, the powdered carbon that an one-step physical activation method makes, and its industry methyl decolorizing ability reaches more than the 180mg/g.
Claims (2)
1. a powdery wood material adopts the method for an one-step physical activation method preparing active carbon; It is characterized in that: will process cylindrical particle with the oven dry of powdery wood material and with the moulding nodulizer; Particulate material adds the stove from the furnace roof of vertical carbon activation furnace, from top to bottom in the charcoal activation tube through charing with activation after extraction line cooling and harrow (2) through the discharging commentaries on classics that drives by reducing motor and carry out continuous discharging; The charing of wood substance grain thing and activation are accomplished in same vertical carbon activation furnace, and the characteristic of this vertical carbon activation furnace is: by heating with roasting kiln hall (1); Extraction line (3); Gas inlet (4), (14), (19); The combustion chamber of activation furnace (5), (7), (13), (15); Steam pipe (8); Pyrolysis gas transfer lime (12); Charcoal activation tube (10); Activation tail gas outlet (11); Activation furnace exterior wall (16); Heat insulating layer (17); Refractory wall (18); Activation furnace pillar stiffener (20) is formed; The combustion chambers burn that the inflammable gas that pyrolysis charring produces leads to the activation furnace middle and lower part respectively is with the supplementary heating activation tube; Vapour passage on the top of carbon activation furnace from the charcoal activation tube feeds the required water vapor of activation; Behind the char zone pre-heating temperature elevation, feed in the charcoal of region of activation, the high-temperature activation tail gas that carbon activation furnace produces leads to heat-activated material in the activation furnace of producing activated carbon by chemical method through flue again.
2. powdery wood material according to claim 1 adopts the method for an one-step physical activation method preparing active carbon; It is characterized in that: the valve of regulating air capacity is housed at each gas inlet place, combustion chamber of vertical carbon activation furnace, the thermopair of measuring temperature is housed in each combustion chamber.
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| CN2010101810277A CN101830461B (en) | 2010-05-24 | 2010-05-24 | Method for making active carbon with powdery wooden materials by using one-step physical method and carbon activation furnace |
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| CN2010101810277A CN101830461B (en) | 2010-05-24 | 2010-05-24 | Method for making active carbon with powdery wooden materials by using one-step physical method and carbon activation furnace |
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| CN101830461B true CN101830461B (en) | 2012-12-19 |
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| CN102179232B (en) * | 2011-02-17 | 2012-06-27 | 杭州电子科技大学 | Method for preparing flying ash/activated carbon compound adsorbent used for demercuration |
| CN102602929B (en) * | 2012-03-15 | 2014-04-02 | 项瑞芳 | Multilayer cross-flow activation method of activated carbon |
| CN102719935A (en) * | 2012-06-07 | 2012-10-10 | 北京林业大学 | Preparation method of active wood-based carbon fibers |
| CN103922335A (en) * | 2013-01-15 | 2014-07-16 | 浙江省林业科学研究院 | Method for preparing natural-gas-storing carrier active carbon from bamboo/wood chips and carbon activation equipment |
| CN104229797B (en) * | 2013-06-08 | 2016-12-28 | 中国科学院工程热物理研究所 | Pyrolysis activation combustion gasification all-in-one oven, refuse landfill Coordination Treatment system, activated carbon manufacture method |
| CN103922337A (en) * | 2014-04-15 | 2014-07-16 | 浙江省林业科学研究院 | Method and equipment for preparing activated carbon carrier for storing natural gas from hard husks |
| CN104804752A (en) * | 2014-06-19 | 2015-07-29 | 杭州大沃软件有限公司 | Timber continuous carbonization and gasification method and device |
| CN104098097B (en) * | 2014-07-26 | 2017-02-15 | 淮北市森化碳吸附剂有限责任公司 | High-efficient vertical-pipe activation furnace |
| CN104383876B (en) * | 2014-10-23 | 2017-02-01 | 山西新华化工有限责任公司 | Preparation method of granular active carbon for sewage treatment |
| CN106348293A (en) * | 2016-09-29 | 2017-01-25 | 浙江省林业科学研究院 | Vertical type activation furnace for preparing active carbon through self-produced steam |
| CN107188174B (en) * | 2017-06-19 | 2019-03-29 | 东北师范大学 | A kind of stalk prepares active carbon multifunctional high-temperature furnace apparatus |
| CN109231206A (en) * | 2017-07-11 | 2019-01-18 | 玉山县三清活性炭有限公司 | A kind of activated carbon production apparatus and its production method |
| CN108106374A (en) * | 2018-01-10 | 2018-06-01 | 浙江省林业科学研究院 | Utilize the method for the wet charcoal of flue gas residual heat drying and its continuous drying equipment |
| CN108249436A (en) * | 2018-03-20 | 2018-07-06 | 浙江省林业科学研究院 | A kind of method and its vertical activation furnace with steam activation preparing active carbon |
| CN108793162A (en) * | 2018-07-20 | 2018-11-13 | 上海治实合金科技有限公司 | High quality active carbon production method and equipment |
| CN112357919A (en) * | 2020-11-06 | 2021-02-12 | 天津亚德尔生物质科技股份有限公司 | Preparation method of medicinal activated carbon |
| CN114105138B (en) * | 2021-09-28 | 2023-05-30 | 南平元力活性炭有限公司 | Production method of high-quality physical method granular activated carbon |
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| CN101289184A (en) * | 2008-06-04 | 2008-10-22 | 卢元健 | Process of producing active carbon by integration method of physical method and chemical method |
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| CN101397136A (en) * | 2008-11-04 | 2009-04-01 | 昆明理工大学 | Method for preparing high specific surface area granular activated carbon by physical activation process |
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| CN201154903Y (en) * | 2007-08-03 | 2008-11-26 | 盐城市炭化工业有限公司 | Activating reaction furnace for preparing active carbon special for sewage disposal by powerless physical method |
| CN101289184A (en) * | 2008-06-04 | 2008-10-22 | 卢元健 | Process of producing active carbon by integration method of physical method and chemical method |
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