CN2622184Y - Low energy consumption type biomass thermal cracking equipment - Google Patents
Low energy consumption type biomass thermal cracking equipment Download PDFInfo
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- CN2622184Y CN2622184Y CN 03231602 CN03231602U CN2622184Y CN 2622184 Y CN2622184 Y CN 2622184Y CN 03231602 CN03231602 CN 03231602 CN 03231602 U CN03231602 U CN 03231602U CN 2622184 Y CN2622184 Y CN 2622184Y
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Abstract
The utility model relates to a low energy biomass pyrolysis device which is characterized by comprising mainly a feeder, a fluidized bed reactor, a cyclone separator, a gas-gas heat exchanger for energy recovery, a gas -water heat exchanger, an oil collector, a Roots circulating blower, a main electric heater and an auxiliary electric heater. The fluidized bed reactor is adopted in the biomass pyrolysis device, which has the advantages of stable temperature field, evenly mixing of gas and material, simple and compact structure and low investment cost of the equipment. In addition, the utility model adopts a feeder comprising a frequency modulated motor, a charge bar and a hopper, and a Roots blower is arranged in the middle. The device forms a close circulation, and can be operated continuously and repeatedly. The output can be improved, especially when heating recycled noncondensible gases in the course of cooling of the high-temperature gas, energy can be saved greatly.
Description
Technical field
The utility model relates to a kind of less energy-consumption biomass through pyrolysis device, belongs to the biomass energy utilization technologies field.
Background technology
In the energy structure of the world today, reproducible biomass energy occupies an important position, biomass are renewable energy sources of a kind of cleaning, chemical conversion utilizes cutting edge technology in the field to biomass (flash) thermo-cracking system oil tech as biomass thermal, can convert low-grade biomass energy to high-grade liquid fuel and high value added product.It is the ideal clean fuel oil, produces obnoxious flavour in combustion processes hardly; What is more important, the raw material of bio oil is biomass, thus utilizing in the process of bio oil can realize CO
2Zero release.The method that biomass resource is converted to biomass energy has many kinds, and according to for obtaining what of ultimate aim product (liquid, gas, solid) quantity, its conversion method and technological process are also different.Improve energy density, be convenient to store and transportation, making the maximum of the end product of Biological resources conversion is that liquid (bio oil) is then ideal.The biomass fast pyrolysis technology is up-to-date biomass energy utilization technologies, and its maximum characteristics are the bio oil proportional maximums in the end product.Yet also not long about biomass fast pyrolysis Study on Technology history, though existing more than 20 year of external research work still is in the type approval test stage, still among research, there is not proven technique to offer market as yet to some mechanism and gordian technique.The work of domestic this respect is started late, but has been subjected to extensive attention, and more existing colleges and universities and scientific research institutions are being engaged in the research work of this respect.Though the fluidized technology has obtained widespread use industrial, but adopt fluidized-bed to do the quick Hot scission reaction of biomass device, and adopt in the high-temperature gas process of cooling and heat not concretive gas, the not concretive gas recirculation after the intensification can cut down the consumption of energy greatly.This kind system does not see bibliographical information as yet.The device that comprehensive more various biomass Hot cleavage methods are adopted, fluidized-bed reactor has the temperature field uniform and stable.Gas and mixing of materials are even, and be simple and compact for structure, the plurality of advantages that the facility investment expense is low.
Summary of the invention
The purpose of this utility model is in order to convert low-grade biomass energy to high-grade liquid fuel and high value added product, a kind of less energy-consumption biomass Hot cracker based on fluidized-bed to be provided.
The less energy-consumption biomass through pyrolysis adopts following technical process: continuous feeding at high temperature gasifies it to reactor, separates, and the gas that contains biomass is condensed into oil through heat exchange, the not concretive gas recirculation after the intensification.
In order to make in the above-mentioned technical process gas and mixing of materials even, the temperature field is uniform and stable, adopt fluidized-bed as reactor, for continuously feeding is adopted by frequency modulation motor, the charging rod, the material feeder that hopper is formed, adopt gas-gas-heat exchanger in order to save the energy, the air-water heat exchanger, the thatch recirculation blower, therefore, this device is by material feeder, buncher and speed reduction unit, charging sleeve and spiral charging rod, fluidized-bed reactor, cyclonic separator, gas-gas-heat exchanger as energy recovery, the air-water heat exchanger, oil trap, Roots's recirculation blower, main electric heater, compositions such as electrical auxiliary heater.Main electric heater, electrical auxiliary heater; Fluidized-bed reactor is vertically placed, and the bottom is equipped with porous plate, and puts into quartz sand as intermediate carrier; Main electric heater places the reactor inlet front end, and electrical auxiliary heater places the reactor outside wall surface.
Owing to adopt fluidized-bed reactor, its advantage is that the temperature field is stable, gas material and mixing of materials are even, simple and compact for structure, the facility investment expense is low, but the cyclical operation of the utility model continous way improves output, particularly the not concretive gas of heating recirculation in the process of cooling of high-temperature gas can be saved the energy greatly.
Description of drawings
Fig. 1 is the device synoptic diagram of less energy-consumption biomass through pyrolysis;
Fig. 2 is the mechanical flow digram of less energy-consumption biomass through pyrolysis.
Embodiment
By shown in Figure 2, technical process of the present utility model is: 1, the material feeder be made up of frequency modulation motor, charging rod, hopper of biomass is sent into fluidized-bed reactor continuously, reactor is the key equipment in the whole device, must make the wood chip can thermally equivalent in the extremely short time, and can reach higher temperature rise rate (greater than 1000 ℃/s) and the residence time that limits; 2, the roots blower that is provided with by the centre is sent into high temperature nitrogen by the fluidized-bed of quartz sand as intermediate carrier gasifying biomass under high-temperature gas, the effect of high quartz sand; 3, gasified bio-matter enters the cyclonic separator separation, and the separation of part carbon particles enters the carbon collector, and gas enters gas-gas interchanger, makes the biomass gas cooling, and gas-gas interchanger is in order to save the energy of heating; 4, after the hot heat exchange of gas-gas, 400-450 ℃ gas enter the air-water interchanger again water be cooled to 40 ℃, contain biomass gas through oil trap and be condensed into oil, 5, through the isolated not concretive gas of oil trap by after the high-temperature gas heating as recycle gas.Oil trap is real to be a kind of gas-liquid separator, and the agglomerative bio oil is separated with incondensable gas.Be that biomass are wood chip in the present embodiment, under higher elevation rate condition, hot cracked back generates liquid, gas, three kinds of products of solid.
Less energy-consumption biomass through pyrolysis device as shown in Figure 1, device mainly contains compositions such as material feeder 1, buncher and speed reduction unit 2, charging sleeve and spiral charging rod 3, fluidized-bed reactor 4, cyclonic separator 5, gas-gas-heat exchanger 6, air-water heat exchanger 7, oil trap 8, Roots's recirculation blower 9, main electric heater 10, electrical auxiliary heater 11.Reactor 4 is the fluidized-bed structure pattern, vertically places, and the bottom is provided with porous plate, and puts into quartz sand as middle thermophore.Reactor is the key equipment in the whole test system, must make the wood chip can thermally equivalent in the extremely short time, and can reach higher temperature rise rate (greater than 1000 ℃/s) and the residence time that limits.Separator 5 is a cyclone type, effect be separate wood chip by pyrolysis after fixedly product in the resultant.It is the energy of saving heating for amount that gas-gas-heat exchanger 6 is set.Air-water heat exchanger 7 need reach faster rate of cooling (greater than 650 ℃/s), high-temperature gas is cooled fast to below 45 ℃, condensable gas condenses into liquid (bio oil) in the resultant.Oil trap 8 is a kind of gas-liquid separator in fact, and the agglomerative bio oil is separated with incondensable gas.Material feeder 1 is that a spiral is sent structure to, and is equipped with frequency modulation motor, makes the corresponding relation of unit time feeding coal and frequency after repeatedly cold conditions is debugged, and feeding coal is with homogeneity and adjustability during warranty test.Main electric heater 10 is arranged on the reactor inlet front end, and the recycle gas that enters reactor is heated to the reactive terminal temperature in advance.Electrical auxiliary heater 11 is arranged on the reactor outside wall surface.It is the heat-up time that reduces gas-solid medium in the reactor for amount that main and auxiliary well heater is set respectively, can guarantee homogeneity, stability and the adjustability of reactor temperature simultaneously.Whole device is a closed cycle, and the centre is provided with roots blower 9, so that sufficiently high circulating head to be provided.
Claims (2)
1, a kind of less energy-consumption biomass through pyrolysis device, it is characterized in that the material feeder (1) that it mainly is made up of frequency modulation motor, charging rod, hopper, buncher and spiral charging rod (3), fluidized-bed reactor (4), cyclonic separator (5), the gas-gas-heat exchanger (6) as energy recovery, air-water heat exchanger (7), oil trap (8), Roots's recirculation blower (9), main electric heater (10), electrical auxiliary heater (11) are formed.
2, less energy-consumption biomass through pyrolysis device according to claim 1 is characterized in that described fluidized-bed reactor for vertically placing, and the bottom is equipped with porous plate, and puts into quartz sand as intermediate carrier; Main electric heater places the reactor inlet front end, and electrical auxiliary heater places the reactor outside wall surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03231602 CN2622184Y (en) | 2003-05-28 | 2003-05-28 | Low energy consumption type biomass thermal cracking equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03231602 CN2622184Y (en) | 2003-05-28 | 2003-05-28 | Low energy consumption type biomass thermal cracking equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2622184Y true CN2622184Y (en) | 2004-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03231602 Expired - Fee Related CN2622184Y (en) | 2003-05-28 | 2003-05-28 | Low energy consumption type biomass thermal cracking equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2622184Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899315A (en) * | 2010-07-14 | 2010-12-01 | 青岛大学 | Device for preparing bio-oil from biomass through pyrolysis |
-
2003
- 2003-05-28 CN CN 03231602 patent/CN2622184Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899315A (en) * | 2010-07-14 | 2010-12-01 | 青岛大学 | Device for preparing bio-oil from biomass through pyrolysis |
| CN101899315B (en) * | 2010-07-14 | 2012-11-28 | 青岛大学 | Device for preparing bio-oil from biomass through pyrolysis |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |