CN103305312A - Processing method for manufacturing coal briquette by deep processing brown coal and adding biomass - Google Patents
Processing method for manufacturing coal briquette by deep processing brown coal and adding biomass Download PDFInfo
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- CN103305312A CN103305312A CN2013102729007A CN201310272900A CN103305312A CN 103305312 A CN103305312 A CN 103305312A CN 2013102729007 A CN2013102729007 A CN 2013102729007A CN 201310272900 A CN201310272900 A CN 201310272900A CN 103305312 A CN103305312 A CN 103305312A
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Abstract
The invention discloses a processing method for manufacturing coal briquette by deep processing brown coal and adding biomass. At present, a baking method employing a drying oven is adopted to reduce the moisture content and improve the calorific value, but the effect is not ideal. The processing method for manufacturing the coal briquette by deep processing brown coal and adding biomass is characterized by comprising the steps of: firstly, crushing and grinding the brown coal, so that the moisture content of the brown coal is 2-3% the density is 1-2 T/m<3> and the grain size is 16-20 meshes; then adding 8-mesh biomass, a 10-mesh curing agent and a 25-mesh antismoke agent, stirring, mixing and compressing into coal briquette, and finally feeding the coal briquette into a coating bath, coating waterproof liquid on the surface of the coal briquette to prepare the final product. The processing method is used for deep processing of raw coal.
Description
Technical field:
The present invention relates to a kind of brown coal deep processing and add the working method of biomass-making modeling coal.
Background technology:
Brown coal are because of water ratio high (10%), and calorific value low (3000 kilocalories are following) only is used for faling apart burning usually, can not do industrial fuel, so the dehydration of brown coal, increment is to become for a long time the important topic that coal industry will solve.
Reduce at present the brown coal water ratio and adopt the Kiln seasoned method of oven dry to come water cut, improve calorific value, but effect is undesirable.Because this method is namely wasted fuel, discharging CO2, SO2 are arranged again, the state basic policy of polluted air and energy-saving and emission-reduction runs in the opposite direction, and value-added effect is not high yet in addition, and calorific value can only be brought up to 3500 kilocalories/kg.
Summary of the invention:
The purpose of this invention is to provide a kind of working method that can improve the brown coal rate of combustion, increase the brown coal deep processing interpolation biomass-making modeling coal of calorific value.
Above-mentioned purpose realizes by following technical scheme:
The working method of biomass-making modeling coal is added in a kind of brown coal deep processing, it is characterized in that: this working method at first pulverizes brown coal, roll and make brown coal reach water ratio 2-3%, density 1-2T/m3, granularity 16-20 order, then add granularity 8 purpose biomass, granularity 10 purpose solidifying agent, granularity 25 purpose smoke suppressors and carry out being compressed into moulded coal behind the stir mixing, at last moulded coal is sent into coating bath and Water-proof liquid is coated onto the moulded coal surface makes finished product.
The working method of biomass-making modeling coal is added in described brown coal deep processing, at first brown coal pulverized, rolled and make brown coal reach water ratio 2.8%, density 1.4T/m3, granularity 18 orders, then add granularity 8 purpose biomass, granularity 10 purpose solidifying agent, granularity 25 purpose smoke suppressors and carry out being compressed into moulded coal behind the stir mixing, at last moulded coal is sent into coating bath and Water-proof liquid is coated onto the moulded coal surface makes finished product.
The working method of biomass-making modeling coal is added in described brown coal deep processing, and the weight ratio of described brown coal, described biomass, described solidifying agent, described smoke suppressor is 65-75:6-10:15-25:1-3.
The working method of biomass-making modeling coal is added in described brown coal deep processing, and the weight ratio of described brown coal, described biomass, described solidifying agent, described smoke suppressor is 70:8:20:2.
The working method of biomass-making modeling coal is added in described brown coal deep processing, and described biomass are maize straw or rice stalk or broomcorn straw or wheat stalk or millet stalk; Described solidifying agent is clay, and described smoke suppressor is CaO.
The working method of biomass-making modeling coal is added in described brown coal deep processing, described Water-proof liquid consist of glue, rosin, paraffin, water, the parts by weight of described glue are 80, the parts by weight of described rosin are 19, the parts by weight of described paraffin are 1, after glue, rosin, paraffin are mixed by weight and water be mixed and made into again described Water-proof liquid by the per-cent of 35:65.
The working method of biomass-making modeling coal is added in described brown coal deep processing, described stirring is to send into helical stir conveying integrated machine with the raw material that four casees proportioning machines prepare in proportion to mix, described compression is to carry out compressed moulding with forming machine, described forming machine is equipped with the molding sleeve of internal diameter band tapering, described molding sleeve opening for feed is large, discharging is young, raw material to be processed enters extrusion molding by opening for feed and is extruded by discharge port, and the internal diameter tapering of molding sleeve is determined by the density requirements of moulded coal.
The working method of biomass-making modeling coal is added in described brown coal deep processing, the internal diameter tapering 1:9 of molding sleeve, and the density of moulded coal is 1.3-1.5 g/cm3.
The working method of biomass-making modeling coal is added in described brown coal deep processing, the internal diameter tapering 1:9 of molding sleeve, and the density of moulded coal is 1.4 g/cm3.
Beneficial effect:
1. the present invention has adopted and has pulverized the pressurization water cut, make the water content of brown coal reach 2.8% standard-required, adopt brown coal and biomass, solidifying agent, smoke suppressor synthesizes, and the granularity of raw material work in-process processing can reach brown coal 18 orders, biomass 8 orders, solidifying agent 10 orders, more than smoke suppressor 25 orders.
2. water ratio of the present invention is low, density is high, and also has biomass solid agent and smoke suppressor, and calorific value reaches 4700 kilocalories/kg during burning, and arranged the approximately 6 minutes time of releasing of secondary exothermic effects prolongation heat energy of solidifying agent again.The burning-point of biomass is lower than coal, so first biomass burning in the combustion processes, produces the space, plays combustion-supporting effect coal is fully burnt, and smoke suppressor plays the smoke elimination effect, reduces the flue dust of discharging.
3. brown coal easy-weathering in air is cracked, and burning-point low (about 270 ℃) store to surpass two months just easily gets angry spontaneous combustion, stacks highly to be difficult for surpassing the defectives such as two meters.The present invention stacks finished product through behind the plated film, meeting wets is difficult for breaking, and is difficult for the spontaneous combustion of setting fire; Plated film liquid cooling plating gets final product, a large amount of savings the energy, reduced production cost.
4. the present invention is low heat value, the brown coal of high-moisture percentage, and after processing such as pulverizing, roll, its water ratio drops to standard-required 2.8% from 10%; This dewatering process is not only saved cost than existing drying and dewatering method, and has truly accomplished state basic policy requirement energy-conservation, that reduce discharging, hang down the charcoal discharging.
5. the present invention realizes increasing calorific value with brown coal through pulverizing, roll raising density, and the calorific value of increase can reach original 1.5 times.And domestic coal mining enterprise there is no this deep processing technology so far.Brown coal density originally reaches 1.4T/m3 at 0.7 ~ 0.8T/m3, after rolling processing.Through behind the brown coal coal dust pulverizing and biomass, solidifying agent, the smoke suppressor stir mixing again compression synthesize, and it utilizes the secondary heat release of synthetic medium to prolong the heat energy time of releasing of brown coal in combustion processes.
The present invention adopt dead front type stove and accessory and this product to support the use and add biomass medium, solidifying agent, the smoke suppressor compression is synthetic, product has higher gas production rate, reaches 1.5 mark sides/kg.And mostly existing coal deep processing technology is to produce honeycomb briquette, and it is main raw material that its great majority adopt hard coals, has adopted the open-type cooking stove, lower (0.7 ~ 1.0 mark side/kg) of gas production rate.
7. the moulded coal of the present invention's process forming machine compressed moulding is coated onto the moulded coal surface to Water-proof liquid through coating bath and has prevented the moulded coal disintegration; In synthetic, add smoke suppressor and greatly reduced soot emissions.
8. the present invention has realized dewatering and has not adopted the external-heat stoving process, and has adopted pulverizing, roller-compaction method, the national requirements that in use reach energy-conservation, reduces discharging low charcoal, and smoke discharge amount is lower than common coal.Realize dehydration, increase calorific value, make the low heat value brown coal of 3000 kilocalories be raised to 4700 kilocalories, and gas production rate remains on 1.5 mark sides/kg, producing thus the gas-making type coal of tailored version, is the special fuel of iron and steel enterprise's vapourizing furnace, also can satisfy the demand that coal is used in life in the countryside.
9. the biomass medium of the present invention's employing has increased gas production rate, and the aerogenesis integrator gas production rate of the aerogenesis of biomass and coal increases to 1.5 mark sides/kg.
10. the present invention can only be promoted to Industrial JC stove special fuel as the loose low calorific value coal that burns usefulness, greatly improve low heat value, industry and the civilian purposes of high-moisture percentage coal.
11. technical characterstic of the present invention is with strong points, practicality is extensive, and prescription is unique; At first be that and coal organic the function of biomass gas generating are synthesized in compression, gas making combines, and has formed gas-making type coal product of new generation, is applicable to the special fuel of Industrial JC stove; Forming and fixing agent has adopted clay, has good sintering degree, is difficult for disintegrating, and is convenient to dust removal with machine, and meanwhile solidifying agent itself has the function of secondary heat release, has realized the prolongation of heat energy time of releasing.
Description of drawings:
Accompanying drawing 1 is process flow sheet of the present invention.
The mass analysis table of accompanying drawing 2 products of the present invention.
Embodiment:
Embodiment 1:
The working method of biomass-making modeling coal is added in a kind of brown coal deep processing, it is characterized in that: this working method at first pulverizes brown coal, roll and make brown coal reach water ratio 2-3%, density 1-2T/m3, granularity 16-20 order, then add granularity 8 purpose biomass, granularity 10 purpose solidifying agent, granularity 25 purpose smoke suppressors and carry out being compressed into moulded coal behind the stir mixing, at last moulded coal is sent into coating bath and Water-proof liquid is coated onto the moulded coal surface makes finished product.
Embodiment 2:
The working method that the biomass-making modeling coal is added in embodiment 1 described brown coal deep processing, at first brown coal pulverized, rolled and make brown coal reach water ratio 2.8%, density 1.4T/m3, granularity 18 orders, then add granularity 8 purpose biomass, granularity 10 purpose solidifying agent, granularity 25 purpose smoke suppressors and carry out being compressed into moulded coal behind the stir mixing, at last moulded coal is sent into coating bath and Water-proof liquid is coated onto the moulded coal surface makes finished product.
Embodiment 3:
The working method that the biomass-making modeling coal is added in embodiment 1 or 2 described brown coal deep processings, the weight ratio of described brown coal, described biomass, described solidifying agent, described smoke suppressor is 65-75:6-10:15-25:1-3.
Embodiment 4:
The working method that the biomass-making modeling coal is added in embodiment 3 described brown coal deep processings, the weight ratio of described brown coal, described biomass, described solidifying agent, described smoke suppressor is 70:8:20:2.
Embodiment 5:
The working method that the biomass-making modeling coal is added in embodiment 1 or 2 or 4 described brown coal deep processings, described biomass are maize straw or rice stalk or broomcorn straw or wheat stalk or millet stalk; Described solidifying agent is clay, and described smoke suppressor is CaO.
Embodiment 6:
The working method that the biomass-making modeling coal is added in embodiment 1 or 2 described brown coal deep processings, described Water-proof liquid consist of glue, rosin, paraffin, water, the parts by weight of described glue are 80, the parts by weight of described rosin are 19, the parts by weight of described paraffin are 1, after glue, rosin, paraffin are mixed by weight and water be mixed and made into again described Water-proof liquid by the per-cent of 35:65.
Embodiment 7:
The working method that the biomass-making modeling coal is added in embodiment 1 or 2 described brown coal deep processings, described stirring is to send into helical stir conveying integrated machine with the raw material that four casees proportioning machines prepare in proportion to mix, described compression is to carry out compressed moulding with forming machine, described forming machine is equipped with the molding sleeve of internal diameter band tapering, described molding sleeve opening for feed is large, discharging is young, and compound to be processed is entered in the taper sheath by the discharge port extrusion moulding by the extruding of forming machine rolling wheel after entering forming machine.The internal diameter tapering of molding sleeve is by the density requirements decision of moulded coal, and four casees proportioning machines are that Henan Construction Machinery Plant produces, and model is PLD1600 four storehouses.
Embodiment 8:
The working method that the biomass-making modeling coal is added in embodiment 7 described brown coal deep processings, the internal diameter tapering 1:9 of molding sleeve, the density of moulded coal is 1.3-1.5 g/cm3.
Embodiment 9:
The working method that the biomass-making modeling coal is added in embodiment 8 described brown coal deep processings, the internal diameter tapering 1:9 of molding sleeve, the density of moulded coal is 1.4 g/cm3.
Embodiment 10:
The working method that the biomass-making modeling coal is added in embodiment 8 described brown coal deep processings, the internal diameter tapering 1:9 of molding sleeve, the density of moulded coal is 1.3 g/cm or 1.5 g/cm3.
Embodiment 11:
The working method that the biomass-making modeling coal is added in embodiment 1 described brown coal deep processing, it is characterized in that: this working method at first pulverizes brown coal, roll and make brown coal reach water ratio 2% or 3%, density 1 T/m3 or 2T/m3, granularity 16 or 20 orders, then add granularity 8 purpose biomass, granularity 10 purpose solidifying agent, granularity 25 purpose smoke suppressors and carry out being compressed into moulded coal behind the stir mixing, at last moulded coal is sent into coating bath and Water-proof liquid is coated onto the moulded coal surface makes finished product.
Embodiment 12:
The working method that the biomass-making modeling coal is added in embodiment 1 or 2 described brown coal deep processings, the weight ratio of described brown coal, described biomass, described solidifying agent, described smoke suppressor is 65:6:15:1 or 75:10:25:3 or 70:7:17:2 or 68:8:20:2 or 73:9:23:2.
Embodiment 13:
The working method that the biomass-making modeling coal is added in the described brown coal deep processing of above-described embodiment, dehydration, low heat value, the brown coal of high-moisture percentage, after processing such as pulverizing, roll, its water ratio (10%) drops to standard-required (2.8%).This dewatering process is not only saved cost than existing drying and dewatering method, and has truly accomplished state basic policy requirement energy-conservation, that reduce discharging, hang down the charcoal discharging.
Increase by 1.5 times of calorific values:
Brown coal realize increasing calorific value through pulverizing, roll raising density.And domestic coal mining enterprise there is no this deep processing technology so far.Brown coal density originally reaches 1.4T/m3 at 0.7 ~ 0.8T/m3, after rolling.Through behind the brown coal coal dust pulverizing and the medium stir mixing again compression synthesize, and it utilizes the secondary heat release of synthetic medium to prolong the heat energy time of releasing of brown coal in combustion processes.
Increase gas production rate:
Present technique is applicable to the deep processing field of raw coal, adopts the dead front type stove and accessory and add biomass medium, solidifying agent, smoke suppressor compression synthetic, and product has higher gas production rate, reaches 1.5 mark sides/kg.And mostly existing coal deep processing technology is to produce honeycomb briquette, and it is main raw material that its great majority adopt hard coals, has adopted the open-type cooking stove, lower (0.7 ~ 1.0 mark side/kg) of gas production rate.
Plated film:
The moulded coal of process forming machine compressed moulding is coated onto the moulded coal surface to Water-proof liquid through coating bath and prevents the wet disintegration of moulded coal chance.
Embodiment 14:
The working method that the biomass-making modeling coal is added in the described brown coal deep processing of above-described embodiment is pulverized the pressurization water cut, reaches 2.8% standard-required, adopts again brown coal and biomass, solidifying agent, the ratio of smoke suppressor synthetic (70,8,20,2), the granularity of raw material work in-process processing; Brown coal 18 orders, biomass 8 orders, solidifying agent 10 orders, more than smoke suppressor 25 orders, after four kinds of raw materials proportioned through four casees proportioning machines, the process stirrer mixed and enters the forming machine roller-compaction.Compound was through the molding sleeve (opening for feed is large, and discharging is young) of internal diameter band tapering when forming machine rolled, and the discharging moulding increases density (1.4g/cm3), and its density size is regulated by cover internal diameter tapering.
Claims (10)
1. the working method of biomass-making modeling coal is added in a brown coal deep processing, it is characterized in that: this working method at first pulverizes brown coal, roll and make brown coal reach water ratio 2-3%, density 1-2T/m3, granularity 16-20 order, then add granularity 8 purpose biomass, granularity 10 purpose solidifying agent, granularity 25 purpose smoke suppressors and carry out being compressed into moulded coal behind the stir mixing, at last moulded coal is sent into coating bath and Water-proof liquid is coated onto the moulded coal surface makes finished product.
2. the working method of biomass-making modeling coal is added in brown coal deep processing according to claim 1, it is characterized in that: at first brown coal pulverized, rolled and make brown coal reach water ratio 2.8%, density 1.4T/m3, granularity 18 orders, then add granularity 8 purpose biomass, granularity 10 purpose solidifying agent, granularity 25 purpose smoke suppressors and carry out being compressed into moulded coal behind the stir mixing, at last moulded coal is sent into coating bath and Water-proof liquid is coated onto the moulded coal surface makes finished product.
3. the working method of biomass-making modeling coal is added in brown coal deep processing according to claim 1 and 2, and it is characterized in that: the weight ratio of described brown coal, described biomass, described solidifying agent, described smoke suppressor is 65-75:6-10:15-25:1-3.
4. the working method of biomass-making modeling coal is added in brown coal deep processing according to claim 3, and it is characterized in that: the weight ratio of described brown coal, described biomass, described solidifying agent, described smoke suppressor is 70:8:20:2.
5. according to claim 1 and 2 or the 4 described brown coal deep processings working method of adding the biomass-making modeling coals, it is characterized in that: described biomass are maize straw or rice stalk or broomcorn straw or wheat stalk or millet stalk; Described solidifying agent is clay, and described smoke suppressor is CaO.
6. the working method of biomass-making modeling coal is added in brown coal deep processing according to claim 3, and it is characterized in that: described biomass are maize straw or rice stalk or broomcorn straw or wheat stalk or millet stalk; Described solidifying agent is clay, and described smoke suppressor is CaO.
7. the working method of biomass-making modeling coal is added in brown coal deep processing according to claim 1 and 2, it is characterized in that: described Water-proof liquid consist of glue, rosin, paraffin, water, the parts by weight of described glue are 80, the parts by weight of described rosin are 19, the parts by weight of described paraffin are 1, after glue, rosin, paraffin are mixed by weight and water be mixed and made into again described Water-proof liquid by the per-cent of 35:65.
8. the working method of biomass-making modeling coal is added in brown coal deep processing according to claim 1 and 2, it is characterized in that: described stirring is to send into helical stir conveying integrated machine with the raw material that four casees proportioning machines prepare in proportion to mix, described compression is to carry out compressed moulding with forming machine, described forming machine is equipped with the molding sleeve of internal diameter band tapering, described molding sleeve opening for feed is large, discharging is young, raw material to be processed enters extrusion molding by opening for feed and is extruded by discharge port, and the internal diameter tapering of molding sleeve is determined by the density requirements of moulded coal.
9. the working method of biomass-making modeling coal is added in brown coal deep processing according to claim 8, and it is characterized in that: the internal diameter tapering 1:9 of molding sleeve, the density of moulded coal is 1.3-1.5 g/cm3.
10. the working method of biomass-making modeling coal is added in brown coal deep processing according to claim 9, and it is characterized in that: the internal diameter tapering 1:9 of molding sleeve, the density of moulded coal is 1.4 g/cm3.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105695030A (en) * | 2016-03-29 | 2016-06-22 | 中国矿业大学 | High-efficiency energy-saving solid mixed fuel moulding technology |
| CN113845954A (en) * | 2021-11-04 | 2021-12-28 | 青岛海通新材料科技发展有限公司 | Gasified briquette capable of being efficiently gasified and preparation method thereof |
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| CN113845954A (en) * | 2021-11-04 | 2021-12-28 | 青岛海通新材料科技发展有限公司 | Gasified briquette capable of being efficiently gasified and preparation method thereof |
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Application publication date: 20130918 |