CN102559322A - Method for preparing biomass briquette by utilizing high-calcium fly ash composite binder - Google Patents
Method for preparing biomass briquette by utilizing high-calcium fly ash composite binder Download PDFInfo
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- CN102559322A CN102559322A CN2011103740108A CN201110374010A CN102559322A CN 102559322 A CN102559322 A CN 102559322A CN 2011103740108 A CN2011103740108 A CN 2011103740108A CN 201110374010 A CN201110374010 A CN 201110374010A CN 102559322 A CN102559322 A CN 102559322A
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- calcium fly
- binding agent
- compound binding
- fly ass
- biomass
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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 a method for preparing biomass briquette by utilizing a high-calcium fly ash composite binder. The method comprises the following steps of: with crushed biomass, high-calcium fly ash and saw dust as raw materials, uniformly mixing crushed biomass grains and a composite binder at 85-95 DEG C, feeding a mixture to a forming machine to form biomass briquette grains, and cooling down the biomass briquette grains, wherein the high-calcium fly ash and the saw dust form the composite binder; in the all raw materials, the addition amount of the composite binder to total weight of the all raw materials is 13-20%, the weight ratio of the high-calcium fly ash to the binder is 8-20% and the balance of the raw materials is the saw dust. The method disclosed by the invention has the advantages of good environment protection performance, high economic value, low costs of devices and persons and excellent technical effect.
Description
Technical field
The present invention relates to the development and utilization technical field of renewable energy source, a kind of method of utilizing the high-calcium fly ass compound binding agent to prepare biomass molding fuel is provided especially.
Background technology
English Patent NO.1286532 utilizes mud coal and biomass to mix, temperature less than 225 ℃ situation under hot briquetting, and add sticker.Mud coal and biomass mixing moulding are to utilize the moulding in addition of peaty adhesive property, but this shaped fuel water resistance is poor, poor durability.Temperature required height, the required pressure of moulding is higher, adds the mineral binder bond of other types, has increased the ash content of fuel.
English Patent NO.143859 utilizes flyash to carry out the cold conditions moulding, but does not mention whether flyash plays cohesive action.Flyash cold conditions shaping strength is low, though play the large percentage of the required flyash of certain skeleton function.Increased the ash content of fuel equally.
International monopoly WO NO.83/04049 points out to utilize and is rich in carbon residue flyash as sticker, and raw material is at least 75 ℃ condition compacted under, and optimum temps is 100～200 ℃.Utilize the carbon content of power station flying dust and the activity of flying dust to carry out biomass fuel forming, can utilize the activity of flying dust, also can utilize the combustiblematerials in the flying dust, can realize the recovery and the utilization of refuse, but forming pressure is still bigger.Flyash is active relatively poor simultaneously.
The flying dust charcoal that USP NO.4589887 points out to utilize the process flotation is as sticker, and the ratio of flying dust charcoal is about 30～50%, and the flying dust charcoal both can serve as sticker, also can be used as fuel and uses.Because be the flying dust through flotation, the cost of its flotation is higher, though good performance is arranged, can be used as the fuel recovery heat again simultaneously as sticker, its economy is not high.
Domesticly be mainly used in pulverized coal forming as sticker, be molded over the domestic report that rarely has as the biomass sticker with flyash.People urgently hope to obtain the good high-calcium fly ass compound binding agent that utilizes of a kind of technique effect and prepare the method for biomass molding fuel.
Summary of the invention
The purpose of this invention is to provide the method that a kind of technique effect better utilised high-calcium fly ass compound binding agent prepares biomass molding fuel.
The method of utilizing the high-calcium fly ass compound binding agent to prepare biomass molding fuel according to the invention is characterized in that: satisfy following requirement:
Utilize following substances as raw material: the biomass after the pulverizing, high-calcium fly ass, sawdust; Wherein, high-calcium fly ass, sawdust are formed compound binding agent; In all raw materials, the addition of compound binding agent accounts for 13～20% of gross weight; High-calcium fly ass accounts for weight of binder than 8～20%, and surplus is a sawdust;
The preparation method of said biomass molding fuel is: under 80 ℃～95 ℃ conditions, will pulverize artifact matter particle and compound binding agent uniform mixing, and send into shaper and process the biomass molding fuel particle, then cooling.
The method of utilizing the high-calcium fly ass compound binding agent to prepare biomass molding fuel according to the invention also includes following preference and one of requires:
1) in all raw materials, the addition of compound binding agent accounts for 13～20% of gross weight; High-calcium fly ass accounts for weight of binder than 8～20%, and surplus is a sawdust; The preparation method of said biomass molding fuel is: will pulverize artifact matter particle and be heated to 80 ℃～95 ℃, and with itself and compound binding agent uniform mixing, send into shaper and process the biomass molding fuel particle then, then cooling.
2) utilize following substances as raw material: the biomass after the pulverizing, oily sludge, high-calcium fly ass, Sodium salts humic acids, sawdust; Wherein, high-calcium fly ass, oily sludge, Sodium salts humic acids, sawdust are formed compound binding agent; In all raw materials, the addition of compound binding agent accounts for 13～20% of gross weight; The shared mass ratio of various compositions satisfies following requirement in compound binding agent: oily sludge: 10～20%, and Sodium salts humic acids: 2～5%, high-calcium fly ass: 8～12%, surplus is a sawdust; The preparation method of said biomass molding fuel is: will pulverize artifact matter particle and be heated to 80 ℃～95 ℃, and with itself and compound binding agent uniform mixing, send into shaper and process the biomass molding fuel particle then, then cooling.
The further preferred content that requires to protect is:
The preparation method of said biomass molding fuel satisfies following requirement: at first will pulverize artifact matter particle and be heated to 80 ℃～95 ℃ and carry out drying and preheating and handle, causticization high-calcium fly ass compound binding agent is heated to 95～100 ℃; With the said two devices uniform mixing, send into shaper more then and process the biomass molding fuel particle then; Forming pressure does
30～40MPa.
The preparation method of said biomass molding fuel satisfies following requirement: high-calcium fly ass is taken from the circulating fluidized bed combustion coal power station, and oily sludge is taken from refinery, and sawdust requires to carry out in advance causticization and handles;
The moulding biomass fuel requires compact density at 0.6～1.2g/cm
3
The present invention utilizes high-calcium fly ass under hydrothermal condition, to have the sticker as biomass after causticization such as the certain activity and the hydraulicity and sawdust, oily sludge etc.This sticker can form skeleton in biomass granule fuel, significantly improve the intensity and the weather resistance of biomass molding fuel, has certain water-proof function simultaneously.High-calcium fly ass is usually used in cement and concrete preparation.High-calcium fly ass is used for biomass fuel forming belongs to domestic initiation.
Utilize the skeleton of the biomass moulding piece of high-calcium fly ass compound binding agent generation, the mass ratio of the intensity of its fuel and weather resistance and sticker is closely related.Under the situation of compound binding agent ratio, can meet the demand of industry basically 20%.
High-calcium fly ass is as mineral binder bond; Its adding obviously increases the external ash content of biomass molding fuel; For reducing the usage ratio of flyash; The Sodium salts humic acids of adding biomass quality 1.5%～2% and 10% oily sludge make the intensity of moulding biomass and weather resistance significantly improve equally in high-calcium fly ass.Oily sludge contains certain flammable composition as one of refinery three wastes, has avoided the increase owing to the excessive fuel ash that causes of flying dust ratio simultaneously.
High-calcium fly ass is taken from power station circular fluid bed flying dust, and the quicklime mass percent is 10.5%.The hydrothermal condition of high-calcium fly ass is 95～100 ℃.
Sodium salts humic acids utilizes the coal that weathered coal or other are rich in humic acids to produce.It produces temperature is about 100 ℃.
Among the present invention, thus the preferred combination producing that requires the flue gas in power station is realized as the heating thermal source heat, electricity, shaped fuel.
Generating plant flue gas can provide Sodium salts humic acids to produce thermal source, and biomass drying source, high-calcium fly ass hydro-thermal thermal source and biomass are softened required thermal source.The efficient of station boiler descends biomass moulding warm energy consumption far above the efficient of general industry boiler.Because softening of biomass descends compacting pressure, and supporting moulding power of motor reduces, the moulding power consumption is descended simultaneously.Prolonged the work-ing life of molding device.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation:
Fig. 1 adds density, pressure history behind the high-calcium fly ass compound binding agent for the stalk material;
Fig. 2 adds pressure and Strength Changes curve behind the high-calcium fly ass compound binding agent for the stalk material;
Fig. 3 adds density, pressure, temperature variation curve behind the high-calcium fly ass compound binding agent for the stalk material;
Fig. 4 adds pressure, temperature and Strength Changes curve behind the high-calcium fly ass compound binding agent for the stalk material;
Fig. 5 is preparation and shaped device structural representation sketch; Each Reference numeral implication among Fig. 5 is following: boiler hot air generator 1, inclined screw feed appliance 2, drying tower 3, turbine mill 4, cyclonic separator 5, pressure lock 6, hammer mill 7, fan 8, support case 9, brick pressing machine 10, cooling line 11, secondary cyclone 12.
Embodiment
Utilize the high-calcium fly ass compound binding agent to prepare the method for biomass molding fuel, utilize following substances as raw material: the biomass after the pulverizing, oily sludge, high-calcium fly ass, Sodium salts humic acids, sawdust; Wherein, high-calcium fly ass, oily sludge, Sodium salts humic acids, sawdust are formed compound binding agent.The addition of compound binding agent accounts for about 20% of gross weight, and it is 10%～20% that oily sludge accounts for the weight of binder ratio, and Sodium salts humic acids accounts for 2～5% of weight of binder ratio, and high-calcium fly ass accounts for weight of binder than 10%, and surplus is a sawdust; With being heated to 80 ℃～95 ℃ to biological particles with through the high-calcium fly ass compound binding agent uniform mixing of causticization after pulverizing, sending into shaper and process biological substance shaped granule, then cooling.
Before formal preparation, the preparation work that do is:
Flue gas is fed in the water of preparation Sodium salts humic acids, heat water to 100 ℃, add caustic soda, the concentration of caustic soda is not more than 4%, weathered coal is sent in the preparation container, and kept Heating temperature, the preparation sodium humate solution.
Sodium humate solution is sprayed in the compound binding agent raw material with vaporific.Raw material is used the boiler smoke heat drying.
High-calcium fly ass, levigate back oily sludge, sawdust, Sodium salts humic acids are mixed.
Mixture gets into before the storage, utilizes flue gas drying.
Biological particles with after the flue gas heating pulverizing remains in 12% its moisture.Make its temperature not be higher than 95 ℃ simultaneously, subsequent use.
Utilize the high-calcium fly ass compound binding agent to prepare in the method for biomass molding fuel; It is following to prepare range request: will be in 100 ℃; Through high-calcium fly ass compound binding agent and the biological particles uniform mixing that causticization is handled, the temperature of mixing the back material keeps said temperature.Send into the shaper moulding then; Forming pressure is 30～40MPa.
High-calcium fly ass is taken from the circulating fluidized bed combustion coal power station, and oily sludge is taken from refinery; The moulding biomass fuel requires to have weather resistance and water resistance preferably, and compact density is at 0.6～1.2g/cm
3
Embodiment 2
Utilize the high-calcium fly ass compound binding agent to prepare the method for biomass molding fuel, utilize following substances as raw material: the biomass after the pulverizing, high-calcium fly ass, sawdust; Wherein, high-calcium fly ass, sawdust are formed compound binding agent.The addition of compound binding agent accounts for about 20% of gross weight, and high-calcium fly ass accounts for weight of binder than 20%, and surplus is a sawdust; With being heated to 80 ℃～95 ℃ to biological particles with through the high-calcium fly ass compound binding agent uniform mixing of causticization after pulverizing, sending into shaper and process biological substance shaped granule, then cooling.
Before formal preparation, the preparation work that do is: caustic soda and sawdust are mixed, add a certain amount of water, the consumption of caustic soda is not more than 4% of total mixture.
Mix with high-calcium fly ass with the sawdust mixture, utilize flue gas with mixture heating up to 100 ℃, and keep Heating temperature.30 minutes heat-up times.
Biological particles with after the flue gas heating pulverizing remains in 12% its moisture.Make its temperature not be higher than 95 ℃ simultaneously, subsequent use.
Will be in 100 ℃, through high-calcium fly ass compound binding agent and the biological particles uniform mixing that causticization is handled, the temperature of mixing the back material keeps said temperature.Send into the shaper moulding then; Forming pressure is 30～40MPa.
Utilize the high-calcium fly ass compound binding agent to prepare in the method for biomass molding fuel, it is following to prepare range request: high-calcium fly ass is taken from the circulating fluidized bed combustion coal power station, and sawdust is from wood-working factory; The moulding biomass fuel requires to have weather resistance and certain water resistance preferably, and compact density is at 0.6～1.2g/cm
3
Claims (6)
1. utilize the high-calcium fly ass compound binding agent to prepare the method for biomass molding fuel, it is characterized in that: satisfy following requirement:
Utilize following substances as raw material: the biomass after the pulverizing, high-calcium fly ass, sawdust; Wherein, high-calcium fly ass, sawdust are formed compound binding agent; In all raw materials, the addition of compound binding agent accounts for 13～28% of gross weight; High-calcium fly ass accounts for weight of binder than 8～20%, and surplus is a sawdust;
The preparation method of said biomass molding fuel is: under 80 ℃～95 ℃ conditions, will pulverize artifact matter particle and compound binding agent uniform mixing, and send into shaper and process the biomass molding fuel particle, then cooling.
2. according to the said method of utilizing the high-calcium fly ass compound binding agent to prepare biomass molding fuel of claim 1, it is characterized in that:
In all raw materials, the addition of compound binding agent accounts for 13～20% of gross weight;
High-calcium fly ass accounts for weight of binder than 8～20%, and surplus is a sawdust;
The preparation method of said biomass molding fuel is: will pulverize artifact matter particle and be heated to 80 ℃～95 ℃, and with itself and compound binding agent uniform mixing, send into shaper and process the biomass molding fuel particle then, then cooling.
3. according to the said method of utilizing the high-calcium fly ass compound binding agent to prepare biomass molding fuel of claim 1, it is characterized in that:
Utilize following substances as raw material: the biomass after the pulverizing, oily sludge, high-calcium fly ass, Sodium salts humic acids, sawdust; Wherein, high-calcium fly ass, oily sludge, Sodium salts humic acids, sawdust are formed compound binding agent; In all raw materials, the addition of compound binding agent accounts for 13～20% of gross weight;
The shared mass ratio of various compositions satisfies following requirement in compound binding agent: oily sludge: 10～20%, and Sodium salts humic acids: 2～5%, high-calcium fly ass: 8～12%, surplus is a sawdust;
The preparation method of said biomass molding fuel is: will pulverize artifact matter particle and be heated to 80 ℃～95 ℃, and with itself and compound binding agent uniform mixing, send into shaper and process the biomass molding fuel particle then, then cooling.
4. according to claim 2 or the 3 said methods of utilizing the high-calcium fly ass compound binding agent to prepare biomass molding fuel, it is characterized in that: the preparation method of said biomass molding fuel satisfies following requirement:
At first will pulverize artifact matter particle and be heated to 80 ℃～95 ℃ and carry out drying and preheating and handle, causticization high-calcium fly ass compound binding agent will be heated to 95～100 ℃; With the said two devices uniform mixing, send into shaper more then and process the biomass molding fuel particle then; Forming pressure is 30～40MPa.
5. according to claim 2 or the 3 said methods of utilizing the high-calcium fly ass compound binding agent to prepare biomass molding fuel; It is characterized in that: the preparation method of said biomass molding fuel satisfies following requirement: high-calcium fly ass is taken from the circulating fluidized bed combustion coal power station; Oily sludge is taken from refinery, and sawdust requires to carry out in advance causticization and handles;
The moulding biomass fuel requires compact density at 0.6～1.2g/cm
3
6. according to the said method of utilizing the high-calcium fly ass compound binding agent to prepare biomass molding fuel of claim 4; It is characterized in that: the preparation method of said biomass molding fuel satisfies following requirement: high-calcium fly ass is taken from the circulating fluidized bed combustion coal power station; Oily sludge is taken from refinery, and sawdust requires to carry out in advance causticization and handles;
The moulding biomass fuel requires compact density at 0.6～1.2g/cm
3
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| CN2011103740108A CN102559322A (en) | 2010-11-29 | 2011-11-23 | Method for preparing biomass briquette by utilizing high-calcium fly ash composite binder |
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| CN201010561528 | 2010-11-29 | ||
| CN201010561528.8 | 2010-11-29 | ||
| CN2011103740108A CN102559322A (en) | 2010-11-29 | 2011-11-23 | Method for preparing biomass briquette by utilizing high-calcium fly ash composite binder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109593585A (en) * | 2019-01-14 | 2019-04-09 | 石宏扬 | A kind of Ash Utilization treatment process |
| CN110643405A (en) * | 2019-10-21 | 2020-01-03 | 新疆大学 | Biomass briquette fuel binder and preparation method and addition mode thereof |
| CN111892968A (en) * | 2020-07-30 | 2020-11-06 | 福建农林大学 | Special fuel rod for fumigating of hill races and use method |
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| WO1983004049A1 (en) * | 1982-05-12 | 1983-11-24 | Poulsen H D | A method of manufacturing briquettes of straw or similar material |
| CN1187528A (en) * | 1996-03-29 | 1998-07-15 | 沈阳油田实业集团 | Process for preparing briquette combustion supporting powder |
| CN1238374A (en) * | 1998-06-05 | 1999-12-15 | 李永付 | Synthetic briquette and its production technology |
| CN1312351A (en) * | 2001-03-16 | 2001-09-12 | 张东新 | Solid fuel made of flyash and plastic and its preparation method |
| CN101050394A (en) * | 2006-04-05 | 2007-10-10 | 孙荣 | Method for fabricating high performance, energy saving honeycomb briquet by using powdered coal |
| CN101307266A (en) * | 2008-07-09 | 2008-11-19 | 张辉和 | Biomass solid fuel and processing method |
-
2011
- 2011-11-23 CN CN2011103740108A patent/CN102559322A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1983004049A1 (en) * | 1982-05-12 | 1983-11-24 | Poulsen H D | A method of manufacturing briquettes of straw or similar material |
| CN1187528A (en) * | 1996-03-29 | 1998-07-15 | 沈阳油田实业集团 | Process for preparing briquette combustion supporting powder |
| CN1238374A (en) * | 1998-06-05 | 1999-12-15 | 李永付 | Synthetic briquette and its production technology |
| CN1312351A (en) * | 2001-03-16 | 2001-09-12 | 张东新 | Solid fuel made of flyash and plastic and its preparation method |
| CN101050394A (en) * | 2006-04-05 | 2007-10-10 | 孙荣 | Method for fabricating high performance, energy saving honeycomb briquet by using powdered coal |
| CN101307266A (en) * | 2008-07-09 | 2008-11-19 | 张辉和 | Biomass solid fuel and processing method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109593585A (en) * | 2019-01-14 | 2019-04-09 | 石宏扬 | A kind of Ash Utilization treatment process |
| CN110643405A (en) * | 2019-10-21 | 2020-01-03 | 新疆大学 | Biomass briquette fuel binder and preparation method and addition mode thereof |
| CN111892968A (en) * | 2020-07-30 | 2020-11-06 | 福建农林大学 | Special fuel rod for fumigating of hill races and use method |
| CN111892968B (en) * | 2020-07-30 | 2021-09-28 | 福建农林大学 | Special fuel rod for fumigating of hill races and use method |
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Application publication date: 20120711 |