CN203845985U - Device of accelerating gas-yield speed by biomass pyrolysis and obtaining nanoscale silicon dioxide material - Google Patents
Device of accelerating gas-yield speed by biomass pyrolysis and obtaining nanoscale silicon dioxide material Download PDFInfo
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- CN203845985U CN203845985U CN201420006917.8U CN201420006917U CN203845985U CN 203845985 U CN203845985 U CN 203845985U CN 201420006917 U CN201420006917 U CN 201420006917U CN 203845985 U CN203845985 U CN 203845985U
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- pyrolytic
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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
Abstract
The utility model provides a device of accelerating gas-yield speed by biomass pyrolysis and obtaining a nanoscale silicon dioxide material. The device comprises a spiral feeding device, a pre-treatment stirrer, a pyrolytic device, a combustion device, a steam generator and a calcining device. A biomass raw material is sent to the pre-treatment stirrer through the spiral feeding device, the stirred biomass raw material is mixed with superheated water vapor generated by the steam generator and enters into the pyrolytic device, the combustible gas separated out by the pyrolytic device enters into the combustion device to combust, hot smoke generated by combustion of the combustion device heats the superheated water vapor generated by the steam generator, and ash discharged from an ash port on the lower part of the pyrolytic device enters into the calcining device to calcine. By using superheated water vapor to heat and dry the biomass raw material, the drying speed is greater than that by a method of drying the biomass raw material by hot air at a same temperature, so that the separating-out speed of the pyrolytic gas of the system is greater than the separating-out speed of the pyrolytic gas of the conventional system, and the gas-yielding heat value is greatly improved.
Description
Technical field
The utility model relates to a kind of device of accelerating biomass pyrolytic aerogenesis speed and obtaining nanometer grade silica material.
Background technology
Although silicon-dioxide enriches in many natural resourcess, highly purified soft silica seldom finds in natural resources.Have at present the report that utilizes inorganic materials soft silica, but its explained hereafter cost is high, energy consumption is large, and environmental pollution is serious.
Except this, also there are some from biomass, to extract the report of the method for silicon-dioxide: as patent ZL02807291.X has introduced the technique of producing highly purified soft silica from rice husk, but all do not consider that organism and energy utilize problem, can not make biomass be effectively utilized.Although application publication 102653406 has been introduced the processing method that Non-oxygen pyrolytic rice husk is produced soft silica, by raw material being carried out to the dry preprocessing means of pickling, destroy the macromolecular chain structures such as lignocellulose to promote pyrolytic reaction, but do not consider the impact of biomass material water content on pyrolysis aerogenesis speed and efficiency in whole process system, and the too low macromole condensable gas that easily produces in pyrolysis gas of pyrolysis temperature, causes pyrolysis gas transport pipeline, combustion equipment wall to occur the problems such as tar condenses.
Utility model content
Technical problem to be solved in the utility model is: a kind of device and method of accelerating biomass pyrolytic aerogenesis speed and obtaining nanometer grade silica material is provided.
The utility model is to solve the problems of the technologies described above taked technical scheme to be:
Accelerate biomass pyrolytic aerogenesis speed and obtain the device of nanometer grade silica material, it is characterized in that, it comprises helixes feed equipment, pre-treatment agitator, pyrolysis installation, combustion unit, vapour generator and roasting assembly; The biomass material of described helixes feed equipment output enters pre-treatment agitator, the superheated vapour that vapour generator produces enters pre-treatment agitator, biomass material and the superheated vapour of the output of pre-treatment agitator enter described pyrolysis installation, the inflammable gas of described pyrolysis installation output enters combustion unit, the hot flue gas of described combustion unit output enters vapour generator, and the lime-ash that the grey cinder notch of described pyrolysis installation bottom is discharged enters described roasting assembly.
In such scheme, described vapour generator is electric steam generator, fuel-steam producer or gas steam generator.
In such scheme, described vapour generator is fuel-steam producer.
In such scheme, described fuel-steam producer comprises cavity and the sinuous coil setting gradually from bottom to top, saturation boiling water tank and the two-way fin that are arranged in cavity are crossed hot coil.
The beneficial effects of the utility model:
1) the utility model is that a kind of overheated steam that utilizes carries out after pre-treatment biomass material, accelerate the comprehensive utilization technique that biomass material pyrolysis is separated out the combustible gas scale of construction and obtained nanometer grade silica material, be characterized as by remaining thermogenetic water vapour, biomass material rapid heating is dry after, in 600 ~ 800 ℃ of intervals, carry out quick Non-oxygen pyrolytic, the macromolecular chains such as the Mierocrystalline cellulose in destruction biomass, hemicellulose, xylogen, after separating out fast the burning of high heating value pyrolysis gas, pass into heat recovery steam generator, the water vapour of generation obtains recycle; The remaining solid lime-ash of pyrolysis is calcined by aerobic, further removes residual carbon-containing impurities, finally processes to reclaim to obtain to be less than 100 nano level silicon-dioxide Industrial materials.
2) water vapour is to add thermogenetic by the fume afterheat after pyrolytic reaction, both recycle fume afterheat, also solved because conventional biomass material (being mainly rice husk) water content is higher, consume pyrolytic reaction heat, cause the problem of pyrolysis rate and Efficiency Decreasing, reduced the coal-tar middle oil generation of pyrolysis biomass material (being mainly rice husk) process simultaneously.
3) although the means of superheated vapour dried feed in processing industries such as chemical industry, medicine, food and agricultural byproducts, applied widely, but in Biomass Energy Utilization technical field described in the utility model, there is no the case of using superheated vapour dried biomass raw material; Existing superheated vapour drying process is when system starts, need extra combustion gas or other energy to the auxiliary whole system steady running of the equipment such as boiler, plasma torch, and the utility model utilization is to adopt the waste heat of the biomass pyrolytic gas combustion exhaust of internal system to produce steam, the energy derive of manufacturing steam is different, the efficiency of system capacity utilization is also improved, and it is also not identical utilizing the object of technology and purposes with traditional waste heat circulation system.Can obtain soft silica material product simultaneously.
Accompanying drawing explanation
The quickening biomass pyrolytic aerogenesis speed that Fig. 1 provides for the utility model embodiment the structural representation that obtains the device of nanometer grade silica material.
Fig. 2 is the structural representation of the vapour generator in Fig. 1.
Fig. 3 is the SEM figure of the utility model embodiment 1.
Fig. 4 is the XRD figure of the utility model embodiment 1 and embodiment 2 and biomass material.
In figure, 1-helixes feed equipment, 2-pre-treatment agitator, 3-pyrolysis installation, 4-vapour generator, 5-roasting assembly, 6-combustion unit, 7-sinuous coil, 8-saturation boiling water tank, 9-two-way fin is crossed hot coil, 10-cavity.
Embodiment
Below in conjunction with drawings and Examples, the utility model will be further described, and certain following embodiment should not be construed as restriction of the present utility model.
embodiment 1
As depicted in figs. 1 and 2, it is a kind of device of accelerating biomass pyrolytic aerogenesis speed and obtaining nanometer grade silica material that the present embodiment provides, and it comprises helixes feed equipment 1, pre-treatment agitator 2, pyrolysis installation 3, combustion unit 6, vapour generator 4 and roasting assembly 5.Biomass material is sent into pre-treatment agitator 2 by helixes feed equipment 1, after mixing, the superheated vapour that biomass material after stirring produces with described vapour generator 4 enters pyrolysis installation 3, the inflammable gas that pyrolysis installation 3 is separated out enters combustion unit 6 burnings, the hot flue gas heating vapour generator 4 that combustion unit 6 burnings produce produces overheated steam, and the lime-ash that the grey cinder notch of pyrolysis installation 3 bottoms is discharged enters calcining in described roasting assembly 5.This vapour generator 4 can be electric steam generator, fuel-steam producer or gas steam generator.In the present embodiment, this vapour generator 4 is fuel-steam producer.This fuel-steam producer comprises cavity 10 and the sinuous coil setting gradually from bottom to top 7, saturation boiling water tank 8 and the two-way fin that are arranged in cavity 10 are crossed hot coil 9.
The present embodiment also provides a kind of method of accelerating biomass pyrolytic aerogenesis speed and obtaining nanometer grade silica material, and it comprises the following steps:
1) rice husk is washed through simple screening, removed the impurity such as earth in rice husk, rice husk is transported in pre-treatment agitator 2 by helixes feed equipment 1, with the abundant combination drying heating of water vapour from last part technology.
2) mixture is sent in pyrolysis installation 3, and pyrolysis in 800 ℃ of intervals of oxygen-free environment produces rapidly pyrolysis gas and sends into combustion unit 6 heat releases;
3) waste heat flue gas enters vapour generator 4 and produces 120 ℃ of overheated steams, draws back the pre-treatment agitator 2 combination drying biomass materials of front end;
The concrete steps that produce overheated steam are: the flue gas after pyrolysis gas combustion reactions passes in vapour generator 4, and cold water is crossed 9 three sections of hot coils and is heated to obtain overheated steam through sinuous coil 7, saturation boiling water tank 8, two-way fin from bottom to top;
4) the solid lime-ash product after pyrolysis is sent into roasting assembly 5, at 800 ℃, is having in oxygen atmosphere and is calcining, and the solid product after calcining is rice hull ash, grinds and obtain the nanometer grade silica material that is less than 100nm.
The pyrolysis gas that above-mentioned pyrolysis step is produced is tested through gas analysis meter, and obtains: its component has CO, CO
2, H
2, CH
4, C
2h
2, C
2h
4, C
2h
6, C
3h
8, or C
3h
10in one or any two or more mixing.
At pyrolysis installation 3 places, adopt the online weight-loss curve that detects dry artifact pledge material of thermogravimetric analyzer to obtain pyrolysis gas speed of separating out, adopt gas analyzer to detect in real time the pyrolysis gas calorific value of separating out simultaneously.The pyrolysis gas speed of separating out of the present embodiment improves 20% than conventional system pyrolysis gas speed of separating out, and the aerogenesis calorific value of the more conventional pyrolysis way of pyrolysis gas calorific value obtaining improves 10%.
The amorphous nano silicon finally obtaining is carried out to scanning electron microscope and XRD test, see respectively Fig. 3 and Fig. 4.Visible: silicon-dioxide is spheroidal particle, and particle diameter is all less than 100nm, more open between particle; By XRD figure, composed and can be found out, without obvious specific crystal diffraction peak, thereby product silicon-dioxide is amorphous structure.
embodiment 2
The present embodiment provides a kind of method of accelerating biomass pyrolytic aerogenesis speed and obtaining nanometer grade silica material, and it comprises the following steps:
1) rice husk is washed through simple screening, removed the impurity such as earth in rice husk, rice husk is transported in pre-treatment agitator 2 by helixes feed equipment 1, with the abundant combination drying heating of water vapour from last part technology;
2) mixture is sent in pyrolysis installation 3, and pyrolysis in 600 ℃ of intervals of oxygen-free environment produces rapidly pyrolysis gas and sends into combustion unit 6 heat releases.
3) waste heat flue gas enters vapour generator 4 and produces 150 ℃ of overheated steams, draws back the pre-treatment agitator 2 combination drying biomass materials of front end.
4) the solid lime-ash product after pyrolysis is sent into roasting assembly 5, at 500 ℃, is having in oxygen atmosphere and is calcining, and the solid product after calcining is rice hull ash, grinds and obtain the nanometer grade silica material that is less than 100nm.
The pyrolysis gas that above-mentioned pyrolysis step is produced is tested through gas analysis meter, and obtains: its component has CO, CO
2, H
2, CH
4, C
2h
2, C
2h
4, C
2h
6, C
3h
8, or C
3h
10in one or any two or more mixing.
The amorphous nano silicon finally obtaining is carried out to scanning electron microscope and XRD test (see figure 4), and silicon-dioxide is spheroidal particle, and particle diameter is all less than 100nm, more open between particle; By XRD figure, composed and can be found out, without obvious specific crystal diffraction peak, thereby product silicon-dioxide is amorphous structure.
It should be noted that, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not depart from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (4)
1. accelerate biomass pyrolytic aerogenesis speed and obtain the device of nanometer grade silica material, it is characterized in that, it comprises helixes feed equipment, pre-treatment agitator, pyrolysis installation, combustion unit, vapour generator and roasting assembly; The biomass material of described helixes feed equipment output enters pre-treatment agitator, the superheated vapour that vapour generator produces enters pre-treatment agitator, biomass material and the superheated vapour of the output of pre-treatment agitator enter described pyrolysis installation, the inflammable gas of described pyrolysis installation output enters combustion unit, the hot flue gas of described combustion unit output enters vapour generator, and the lime-ash that the grey cinder notch of described pyrolysis installation bottom is discharged enters described roasting assembly.
2. quickening biomass pyrolytic aerogenesis speed as claimed in claim 1 obtain the device of nanometer grade silica material, is characterized in that, described vapour generator is electric steam generator, fuel-steam producer or gas steam generator.
3. quickening biomass pyrolytic aerogenesis speed as claimed in claim 2 obtain the device of nanometer grade silica material, is characterized in that, described vapour generator is fuel-steam producer.
4. quickening biomass pyrolytic aerogenesis speed as claimed in claim 3 obtain the device of nanometer grade silica material, it is characterized in that, described fuel-steam producer comprises cavity and the sinuous coil setting gradually from bottom to top, saturation boiling water tank and the two-way fin that are arranged in cavity are crossed hot coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420006917.8U CN203845985U (en) | 2014-01-06 | 2014-01-06 | Device of accelerating gas-yield speed by biomass pyrolysis and obtaining nanoscale silicon dioxide material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420006917.8U CN203845985U (en) | 2014-01-06 | 2014-01-06 | Device of accelerating gas-yield speed by biomass pyrolysis and obtaining nanoscale silicon dioxide material |
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| CN203845985U true CN203845985U (en) | 2014-09-24 |
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| CN201420006917.8U Expired - Fee Related CN203845985U (en) | 2014-01-06 | 2014-01-06 | Device of accelerating gas-yield speed by biomass pyrolysis and obtaining nanoscale silicon dioxide material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015101360A1 (en) * | 2014-01-06 | 2015-07-09 | 中盈长江国际新能源投资有限公司 | Apparatus and method for increasing biomass pyrolysis and gas production speed and obtaining nano-scale silica material |
| CN105176564A (en) * | 2015-10-20 | 2015-12-23 | 江西金糠新材料科技有限公司 | Method and device for simultaneously preparing bio-oil and white carbon black in four-section manner of coupling, hydrolysis baking, pyrolysis and roasting |
| JP2020040861A (en) * | 2018-09-12 | 2020-03-19 | 株式会社クボタ | Method and apparatus for producing amorphous silica |
-
2014
- 2014-01-06 CN CN201420006917.8U patent/CN203845985U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015101360A1 (en) * | 2014-01-06 | 2015-07-09 | 中盈长江国际新能源投资有限公司 | Apparatus and method for increasing biomass pyrolysis and gas production speed and obtaining nano-scale silica material |
| EP3093271A4 (en) * | 2014-01-06 | 2017-10-11 | Zhongying Changjiang International New Energy Investment Co., Ltd | Apparatus and method for increasing biomass pyrolysis and gas production speed and obtaining nano-scale silica material |
| CN105176564A (en) * | 2015-10-20 | 2015-12-23 | 江西金糠新材料科技有限公司 | Method and device for simultaneously preparing bio-oil and white carbon black in four-section manner of coupling, hydrolysis baking, pyrolysis and roasting |
| JP2020040861A (en) * | 2018-09-12 | 2020-03-19 | 株式会社クボタ | Method and apparatus for producing amorphous silica |
| JP7249116B2 (en) | 2018-09-12 | 2023-03-30 | 株式会社クボタ | Amorphous silica production method and amorphous silica production apparatus |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20210106 |
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| CF01 | Termination of patent right due to non-payment of annual fee |