CN101693850A - Environmentally-friendly ecological charcoal and preparation method thereof - Google Patents
Environmentally-friendly ecological charcoal and preparation method thereof Download PDFInfo
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- CN101693850A CN101693850A CN200910070949A CN200910070949A CN101693850A CN 101693850 A CN101693850 A CN 101693850A CN 200910070949 A CN200910070949 A CN 200910070949A CN 200910070949 A CN200910070949 A CN 200910070949A CN 101693850 A CN101693850 A CN 101693850A
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
The invention relates to an environmentally-friendly ecological charcoal which is characterized by comprising the following components in parts by weight: 50-70 straw charcoal, 3.5-4 sodium nitrate, 25-30 barium nitrate, 2.5-3.5 starch, 0-20 clean coal, 5-8 bentonite and 2.5-3.5 pulverized lime. The environmentally-friendly ecological charcoal has a preparation method comprising the steps of straw charring, mixing, shaping and drying. The invention has the advantages of fully utilizing the crop straw charcoal as the main raw material of the charcoal and adding a performance regulator, thereby not only ensuring the heat value and the burning time which are needed, but also further reducing the discharge of the sulfur dioxide so as to satisfy the requirements of customers on necessary food safety and quality of charcoal for barbecue. In addition, combustible gas generated in the straw charcoal process is recycled to be used as fuel during drying the ecological charcoal, and wood tar and wood vinegar are recycled too to utilize the straw totally, thereby preventing polluting the environment.
Description
Technical field
The invention belongs to the burning charcoal, relate in particular to a kind of environmentally-friendly ecological charcoal that utilizes agricultural crop straw to manufacture.
Background technology
Along with China rural laborer shifts, energy consumption structure and all kinds of generation raw material application, add stalk comprehensive utilization cost height, less economical, reason such as industrialization level is low, current provincialism, the structural stalk surplus of having occurred, particularly, burn phenomenon in violation of rules and regulations and remain incessant after repeated prohibition, not only wasted resource in some areas of grain-production district and coastal economy prosperity, contaminate environment, also serious threat traffic safety.
Burning charcoal of consulting by retrieval and employing stalk are made the relevant patent document of charcoal for roasting: patent CN1884455, a kind of civil honeycomb briquette preparation method who makes of stalk; Patent CN1861520 utilizes the discarded plant straw charring, and gac is made in activation; Patent CN101070496A, a kind of honeycomb briquette of lighting with paper; Patent CN1252430A, the honeycomb briquette that a kind of available paper is lighted; Patent CN1058422, the charcoal for roasting of directly lighting with match; Patent CN1059755A, inflammable charcoal ball.In above patent of consulting, be to be that raw material is made civil honeycomb briquette mostly with the stalk charcoal, the problem of existence is that the finished product calorific value is low, and combustion time is short, and the effect of stalk charcoal just is used for igniting.At present, the charcoal for roasting of the usefulness that is suitable for both at home and abroad cooking a meal in the open air all is by charcoal and mix the coal manufacturing, is characterized in that inflammable, few cigarette, smell are little.For example patent CN1058422 and CN1059755A charcoal for roasting, in order to improve finished product calorific value and combustion time, its main raw material composition adopts is still charcoal and coal.Because wherein major ingredients is a coal, adopts charcoal again, this will use a large amount of timber, not only can destroy the environmental ecology balance, also can serious environment pollution.
Utilizing stalk at present is to adopt open quick carbonizing kiln to make the stalk charcoal substantially, this method stalk charcoal; Drying process is to use Coalhotairfurnace, and the smoke evacuation dust of hotblast stove causes atmospheric pollution, and power consumption is big, the combustible gas that produces in the straw charring process, tar, wood vinegar do not obtain utilizing, it is entered in the atmosphere, or emptying lights, not only contaminate environment but also make energy dissipation; In making processes, feed proportioning system all is open, and dust pollution is serious, influences the healthy of workman.Market demands wishing to release a kind of picnic charcoal for roasting that substitutes charcoal fully urgently.
Summary of the invention
The present invention is in order to overcome deficiency of the prior art, a kind of environmentally-friendly ecological charcoal and preparation method thereof is provided, make full use of the alternative charcoal of stalk charcoal that superfluous agricultural crop straw is made, add properties modifier simultaneously, needed calorific value and combustion time had both been guaranteed, further reduced the quantity discharged of sulfurous gas again, to satisfy the client to barbecue necessary food safety of charcoal and specification of quality; And realize zero release in process of production, pollution-free.
The present invention is achieved through the following technical solutions for achieving the above object,
A kind of environmentally-friendly ecological charcoal is characterized in that: be made up of following ingredients, by weight meter (part)
Stalk charcoal 50-70 SODIUMNITRATE 3.5-4 nitrate of baryta 25-30
Starch 2.5-3.5 cleaned coal 0-20 wilkinite 5-8
Lime powder 2.5-3.5.
Described stalk charcoal fineness 50-100 order.
The preparation method of above-mentioned environmentally-friendly ecological charcoal is characterized in that: concrete steps are:
(1) straw charring: adopt common process to carry out charing after adopting quick carbonizing kiln with crushed stalk, the inflammable gas that straw charring produces is introduced the fuel gas hot-blast stove of drying line by pipeline with inflammable gas, reclaims tar and wood vinegar simultaneously;
(2) batching: the raw material of said components is entered feed proportioning system preparation blending in proportion; Described feed proportioning system is made of the cyclonic separator that connects successively and sack cleaner and pneumatic conveyer road;
(3) moulding, drying: the raw material that configures is sent into formation system by rotary conveyor, described formation system is made of kneader, conditioner and shaper, enter the solar airing line behind the pressing and forming, send into drying line after drying, the transfer rate that the drying line belt is carried is 1 meter per second, temperature is 100-120 ℃, and drying line adopts the fuel gas hot-blast stove heating;
(4) metering, packing back warehouse-in.
Beneficial effect: made full use of the agricultural crop straw charcoal and without charcoal, owing to added properties modifier, both guaranteed needed calorific value and combustion time, further reduced the quantity discharged of sulfurous gas again, to satisfy the client barbecue necessary food safety of charcoal and specification of quality.More what deserves to be explained is in stalk charcoal making processes not only with the raw material of stalk charcoal as environmentally-friendly ecological charcoal, and the inflammable gas that is produced is reclaimed as the fuel in the ecological charcoal drying process, wood tar oil and wood vinegar also obtain reclaiming, and stalk 100% is utilized, and prevent the pollution of the environment.Feed proportioning system adopts closed, gets rid of serious dust pollution, and the assurance workman's is healthy.Environmentally-friendly ecological charcoal improves stalk comprehensive utilization ratio and economic value added thereof, makes agricultural crop straw become reliable renewable new forms of energy, to solve environmental pollution and the charcoal shortage of resources problem that is caused of burning in violation of rules and regulations.
Description of drawings
Fig. 1 is the process flow diagram of environmentally-friendly ecological charcoal;
Fig. 2 is the production line synoptic diagram of environmentally-friendly ecological charcoal.
Embodiment
Below in conjunction with preferred embodiment, to details are as follows according to embodiment provided by the invention:
Embodiment 1
A kind of environmentally-friendly ecological charcoal is made up of following ingredients, by every part of 1kg
Stalk charcoal 500 SODIUMNITRATE 35 nitrate of baryta 250
Starch 25 cleaned coal 200 wilkinites 50
Lime powder 25.
Wherein starch is with 6 times sodium hydroxide solution melt into pasty state.Stalk charcoal fineness 50 orders.
Embodiment 2
A kind of environmentally-friendly ecological charcoal is made up of following ingredients, by every part of 1kg
Stalk charcoal 700 SODIUMNITRATE 40 nitrate of baryta 300
Starch 35 cleaned coal 0 wilkinite 80
Lime powder 35.
Wherein starch is with 7 times sodium hydroxide solution melt into pasty state.Stalk charcoal fineness 100 orders.
Embodiment 3
A kind of environmentally-friendly ecological charcoal is made up of following ingredients, by every part of 1kg
Stalk charcoal 600 SODIUMNITRATE 38 nitrate of baryta 280
Starch 3 cleaned coal 100 wilkinites 60
Lime powder 3.
Wherein starch is with 7 times sodium hydroxide solution melt into pasty state.Stalk charcoal fineness 80 orders.
Above-mentioned SODIUMNITRATE, nitrate of baryta play combustion-supporting effect; Starch plays adhesive effect; In the properties modifier: cleaned coal weight is that the heat output according to straw carbon adds; Because easily produce flying dust in the too low use of intensity of straw carbon ash, wilkinite then can increase grey intensity.In order to reduce sulfur dioxide pollution, adopt the fixing agent of lime powder as sulfurous gas.
The preparation method of above-mentioned environmentally-friendly ecological charcoal, concrete steps are:
(1) straw charring: adopt common process to carry out charing after adopting quick carbonizing kiln with crushed stalk, the inflammable gas that straw charring produces is introduced the fuel gas hot-blast stove of drying line by pipeline with inflammable gas, reclaims tar and wood vinegar simultaneously;
(2) batching: the raw material of said components is entered feed proportioning system preparation blending in proportion; Described feed proportioning system is made of the cyclonic separator that connects successively and sack cleaner and pneumatic conveyer road;
(3) moulding, drying: the raw material that configures is sent into formation system by rotary conveyor, described formation system is made of kneader, conditioner and shaper, enter the solar airing line behind the pressing and forming, send into drying line after drying, the transfer rate that the drying line belt is carried is 1 meter per second, temperature is 100-120 ℃, and drying line adopts the fuel gas hot-blast stove heating;
(4) metering, packing back warehouse-in.
Technical characterstic:
Straw charring need not external energy.Made stalk charcoal is as the raw material of environment protection ecologic charcoal, and the fuel gas hot-blast stove that the inflammable gas that produces in the straw charring process is reclaimed by pipeline introducing drying line is used as finished product exsiccant fuel; Wood tar oil and wood vinegar reclaim can make industrial chemicals, has guaranteed that stalk 100% utilizes zero release.Feed proportioning system adopts cyclonic separator and sack cleaner and the pneumatic conveyer road that connects successively, realizes closed batching, thoroughly eliminates dust from flying.
Properties modifier can be to the combustion time of finished product according to customer requirement, the sulfurous gas burst size, and cold ultimate compression strength, performances such as after-flame ash intensity are regulated.
The present invention is that main raw material, coal are the ecological charcoal that auxiliary material is made with the stalk charcoal, and it is different from generally is the charcoal for roasting of main raw material (charcoal is an auxiliary material) with the coal.The environment protection ecologic charcoal is not simple with stalk charcoal replacement charcoal technology, because the calorific value unstable of stalk charcoal and the different many changes of properties of product of having brought of chemical constitution of ash content.The charcoal for roasting of producing is major ingredient with the coal at present, and the ash content of generation mainly is made up of the oxide compound of silicon, aluminium, iron, and the support performance of its ashes is good, the intensity height.Mainly form and the stalk charcoal gets ash content, be solubility by the oxide compound of potassium, sodium, magnesium, calcium; Its ashes support intensity is very poor.Therefore, produce charcoal for roasting if only change charcoal into the stalk charcoal in simple mode, the intensity of its ashes is too low, burns down promptly to loose, and flying dust pollutes broil food easily.Through repetition test, must adopt different properties modifiers to regulate and control.We have found the consumption of different performance conditioning agent to guarantee quality product by a large amount of experiments.As regulate the thermal value and the combustion time of product with 0～20% cleaned coal, the wilkinite with 5～8% is regulated the intensity of product ash; Regulate the carbon dioxide releasing amount of product with 2.5～5% lime powders.
Part test report as:
Laboratory report (one)
Experiment title: about make the experiment of ignition pill of the stalk charcoal
Experimental principle and purpose:
Trial by to the replacement adjustment of raw material to reach than the better effect of existing product.
Experimentation:
1. assay obtains raw materials used every index.
| Ash content (%) | Fugitive constituent (%) | Thermal value (kilocalorie/kilogram) | Sulphur content (%) | |
| Coal (original) | ??16.32 | ??30.76 | ??4904 | ??0.47 |
| The stalk charcoal | ??18.3 | ??12.75 | ??4827 | ??0.04 |
| Coke | ??18.02 | ??2.79 | ??5138 | ??0.66 |
2. make ignition pill in proportion
3. after the oven dry, product is carried out strength test and combustion testing.
Experimental result:
Get the 1kg product and carry out combustion testing
| Ignition time | Turn white the time | Working lipe (＞205 ℃) | Top temperature | Intensity | Experimental phenomena | |
| Prescription one | 0 ' | 2 ' | 100 ' | 567 ℃ | Qualified | Burning is normal, and burning back ash is canescence, and the insufficient strength of ash |
| Prescription two | 0 ' | 1 ' 50 " | 100 ' | 559 ℃ | Qualified | There are slight coking, explosion phenomenon to occur.Burning back ash is chocolate, and the insufficient strength of ash |
Data processing:
Prescription one
| Time (min) | ??0 | ??10 | ??20 | ??30 | ??40 | ??50 | ??60 | ??70 | ??80 | ??90 | ??100 |
| Temperature ℃ | ??0 | ??556 | ??552 | ??529 | ??500 | ??448 | ??425 | ??371 | ??345 | ??302 | ??233 |
Prescription two
| Time (min) | ??0 | ??10 | ??20 | ??30 | ??40 | ??50 | ??60 | ??70 | ??80 | ??90 | ??100 |
| Temperature ℃ | ??0 | ??543 | ??531 | ??510 | ??492 | ??410 | ??370 | ??338 | ??312 | ??273 | ??246 |
Conclusion:
By analysis, as can be seen to phenomenon and data:
1. can suitably reduce the ratio of ignition dope.Prevent that coking, explosion phenomenon from occurring.
2. Hui insufficient strength.Reason may be too fast for combustionvelocity, and spalling internally causes.
3. lack combustion time, temperature is on the low side.Reason may for: (1) stalk charcoal density is low, and the individual quality of product is light partially, causes individual amount many, rapid heat dissipation.(2) combustionvelocity is too fast, and coke is imperfect combustion.(3) under the situation of conditions permit, can improve the quality of coal.Manual operation error when (4) not getting rid of test.
Laboratory report (two)
Experiment title: about make the experiment 2 of ignition pill of the stalk charcoal
Experimental principle and purpose:
Trial by to the replacement adjustment of raw material to reach than the better effect of existing product.
Experimentation:
Assay obtains raw materials used every index.
| Ash content (%) | Fugitive constituent (%) | Thermal value (kilocalorie/kilogram) | Sulphur content (%) | |
| Coal | ??16.32 | ??30.76 | ??4904 | ??0.47 |
| The stalk charcoal | ??18.3 | ??12.75 | ??4827 | ??0.04 |
Make ignition pill in proportion.
After the oven dry, product is carried out strength test and combustion testing.
Experimental result:
Get the 1kg product and carry out combustion testing.
| Ignition time | Turn white the time | Working lipe (＞205 ℃) | Top temperature | Intensity | Experimental phenomena | |
| Prescription one | ??0’ | ??2’10” | ??80 | ??608℃ | Qualified | The color of burning and ash is normal, follows lasting flare, but the insufficient strength of ash |
| Prescription two | ??0’ | ??2’05” | ??80 | ??622℃ | Qualified | The color of burning and ash is normal, follows lasting flare, but the insufficient strength of ash |
Data processing:
Prescription one
| Time (min) | ??0 | ??10 | ??20 | ??30 | ??40 | ??50 | ??60 | ??70 | ??80 |
| Temperature ℃ | ??0 | ??606 | ??585 | ??471 | ??382 | ??359 | ??307 | ??237 | ??207 |
Prescription two
| Time (min) | ??0 | ??10 | ??20 | ??30 | ??40 | ??50 | ??60 | ??70 | ??80 |
| Temperature ℃ | ??0 | ??619 | ??603 | ??527 | ??413 | ??364 | ??328 | ??252 | ??209 |
Conclusion:
By analysis, as can be seen to phenomenon and data:
Top temperature is higher, but the time length is short.Reason should be that the ratio of charcoal improves, and the used time of fully burning is short, release of heat rapidly during beginning, thereby the time length must shorten.Can consider that the quality that improves coal solves the time length problem.
The strength problem of ash can be considered to solve by adding proper amount of bentone.
Laboratory report (three)
Experiment title: about the experiment of the intensity that strengthens the product ash
Experimental principle and purpose:
Reach the purpose of the intensity that improves ash by the contrast experiment.
Experimentation:
Assay obtains raw materials used every index.
| Ash content (%) | Fugitive constituent (%) | Thermal value (kilocalorie/kilogram) | Sulphur content (%) | |
| Coal | ??16.32 | ??30.76 | ??4904 | ??0.47 |
| The stalk charcoal | ??18.3 | ??12.75 | ??4827 | ??0.04 |
Make ignition pill in proportion.
After the oven dry, product is carried out strength test and combustion testing.
Experimental result:
Get the 1kg product and carry out combustion testing.
| Ignition time | Turn white the time | Working lipe (＞205 ℃) | Top temperature | Intensity | Experimental phenomena | |
| Prescription one | 0 ' | 2 ' 05 " | 80 | 622 ℃ | Qualified | The color of burning and ash is normal, follows lasting flame, but the insufficient strength of ash |
| Prescription two | 0 ' | 3 ' 15 " | 80 | 560 ℃ | Qualified | The color of burning and ash is normal, follows lasting flame, and the intensity of cooling back ash can reach requirement. |
Data processing:
Prescription one
| Time (min) | ??0 | ??10 | ??20 | ??30 | ??40 | ??50 | ??60 | ??70 | ??80 |
| Temperature ℃ | ??0 | ??619 | ??603 | ??527 | ??413 | ??364 | ??328 | ??252 | ??209 |
Prescription two
| Time (min) | ??0 | ??10 | ??20 | ??30 | ??40 | ??50 | ??60 | ??70 | ??80 |
| Temperature ℃ | ??0 | ??557 | ??522 | ??497 | ??475 | ??398 | ??375 | ??270 | ??206 |
Conclusion:
By comparative analysis, as can be seen to phenomenon and data:
Add an amount of wilkinite and can solve the strength problem of ash, but can increase the time of turning white and reduce top temperature.
The wilkinite amount that adds is about 3%～8% of total amount, decides according to the ash content of raw material, and overall ash content should be controlled at about 23%.
Target level of product quality:
Complete burning time :≤5 minutes (lighting with match),
Cold ultimate compression strength: 〉=400N/ (ball-type)
〉=8000N/ piece (honeycomb briquette)
After-flame ash intensity: the flying dust that or not loose maintains the original state
Breakage rate:＜10%
Moisture (Mar):＜3.5%
Sulphur content (Sad):＜0.2%
After igniting fully: non smoke
The above only is preferred embodiment of the present invention, is not structure of the present invention is done any pro forma restriction.Every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (3)
1. an environmentally-friendly ecological charcoal is characterized in that: be made up of following ingredients, by weight meter (part)
Stalk charcoal 50-70 SODIUMNITRATE 3.5-4 nitrate of baryta 25-30
Starch 2.5-3.5 cleaned coal 0-20 wilkinite 5-8
Lime powder 2.5-3.5.
2. according to the described environmentally-friendly ecological charcoal of claim 1, it is characterized in that: described stalk charcoal fineness 50-100 order.
3. the preparation method of an environmentally-friendly ecological charcoal according to claim 1, it is characterized in that: concrete steps are:
The preparation method of above-mentioned environmentally-friendly ecological charcoal is characterized in that: concrete steps are:
(1) straw charring: adopt common process to carry out charing after adopting quick carbonizing kiln with crushed stalk, the inflammable gas that straw charring produces is introduced the fuel gas hot-blast stove of drying line by pipeline with inflammable gas, reclaims tar and wood vinegar simultaneously;
(2) batching: the raw material of said components is entered feed proportioning system preparation blending in proportion; Described feed proportioning system is made of the cyclonic separator that connects successively and sack cleaner and pneumatic conveyer road;
(3) moulding, drying: the raw material that configures is sent into formation system by rotary conveyor, described formation system is made of kneader, conditioner and shaper, enter the solar airing line behind the pressing and forming, send into drying line after drying, the transfer rate that the drying line belt is carried is 1 meter per second, temperature is 100-120 ℃, and drying line adopts the fuel gas hot-blast stove heating;
(4) metering, packing back warehouse-in.
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| CN200910070949A CN101693850A (en) | 2009-10-23 | 2009-10-23 | Environmentally-friendly ecological charcoal and preparation method thereof |
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| CN200910070949A CN101693850A (en) | 2009-10-23 | 2009-10-23 | Environmentally-friendly ecological charcoal and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102977965A (en) * | 2012-12-20 | 2013-03-20 | 武汉钢铁(集团)公司 | Biomass briquette for lime shaft kiln and preparation method thereof |
| CN105062605A (en) * | 2015-07-20 | 2015-11-18 | 广东喜扬生物能源科技有限公司 | Biomass particle forming method |
| CN105950242A (en) * | 2016-05-31 | 2016-09-21 | 北京神雾环境能源科技集团股份有限公司 | Composite binder for forming formed coke, formed coke and preparation method of formed coke |
| CN108893173A (en) * | 2018-08-13 | 2018-11-27 | 亳州市创亿生物质燃料科技有限公司 | A kind of easy firing type Radix Isatidis dregs of a decoction biological particles |
| CN109321306A (en) * | 2018-10-22 | 2019-02-12 | 池州众丰现代农业发展有限公司 | A kind of biological particles preparation method |
-
2009
- 2009-10-23 CN CN200910070949A patent/CN101693850A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102977965A (en) * | 2012-12-20 | 2013-03-20 | 武汉钢铁(集团)公司 | Biomass briquette for lime shaft kiln and preparation method thereof |
| CN102977965B (en) * | 2012-12-20 | 2014-05-21 | 武汉钢铁(集团)公司 | Biomass briquette for lime shaft kiln and preparation method thereof |
| CN105062605A (en) * | 2015-07-20 | 2015-11-18 | 广东喜扬生物能源科技有限公司 | Biomass particle forming method |
| CN105950242A (en) * | 2016-05-31 | 2016-09-21 | 北京神雾环境能源科技集团股份有限公司 | Composite binder for forming formed coke, formed coke and preparation method of formed coke |
| CN108893173A (en) * | 2018-08-13 | 2018-11-27 | 亳州市创亿生物质燃料科技有限公司 | A kind of easy firing type Radix Isatidis dregs of a decoction biological particles |
| CN109321306A (en) * | 2018-10-22 | 2019-02-12 | 池州众丰现代农业发展有限公司 | A kind of biological particles preparation method |
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Application publication date: 20100414 |