CN105669277A - Device and method for preparing novel carbon-based fertilizer under CO2 atmosphere - Google Patents
Device and method for preparing novel carbon-based fertilizer under CO2 atmosphere Download PDFInfo
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- CN105669277A CN105669277A CN201610195110.7A CN201610195110A CN105669277A CN 105669277 A CN105669277 A CN 105669277A CN 201610195110 A CN201610195110 A CN 201610195110A CN 105669277 A CN105669277 A CN 105669277A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G1/00—Mixtures of fertilisers belonging individually to different subclasses of C05
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Abstract
The invention discloses a device for preparing a novel carbon-based fertilizer under a CO2 atmosphere. A circular fluidized bed reactor is connected with a cyclone separator, the cyclone separator is connected with a condensation washing tower, and the cyclone separator is connected with a material returning device; the condensation washing tower is connected with a gas collection gas cabinet; the gas collection gas cabinet is connected with a gas combustor by virtue of a valve, and the gas combustor is connected with the circular fluidized bed reactor; and a CO2 gas source is connected to the circular fluidized bed reactor by virtue of a flowmeter, the middle part of the circular fluidized bed reactor is connected with a material cabin, and a carbon-based material outlet is formed in the bottom of the circular fluidized bed reactor. The invention also discloses a method for preparing the novel carbon-based fertilizer under the CO2 atmosphere. The circular fluidized bed reactor is used for cracking agricultural waste, the process is optimized, and the efficiency is high; more nutrient elements such as nitrogen, phosphorus, potassium and the like can be reserved in biological carbon; and compared with N2, the cost of potted CO2 is lower.
Description
Technical field
The present invention relates to charcoal base manure material preparation field, it is specifically related to a kind of at CO2Prepare the device of novel charcoal base manure material under atmosphere, also relate to a kind of at CO2The method of novel charcoal base manure material is prepared under atmosphere.
Background technology
China agrochemical uses excessively, easily causes land fertility to decline, soil compaction, and the vesicular structure of charcoal base manure material can Bao Shui, fertilizer conservation, greatly improve soil physico-chemical property. Charcoal base manure material be agricultural wastes under anaerobic or anoxia condition, the solid product obtained after high temperature pyrolysis. Agricultural wastes resource for the preparation of charcoal base manure material is quite abundant, and when collecting, the agricultural wastes resource that China can utilize at present is quite abundant mainly comprises agricultural crop straw, fowl and animal excrement and husk etc.
Needing carrier gas to keep anaerobic or anaerobic environment in traditional charcoal base manure material preparation process, conventional carrier gas is mainly N2. And our discovery carbon dioxide in lower pyrolysis reaction temperature (350-450 DEG C) as reaction atmosphere, have more advantage, not only can greatly improve charcoal base manure material product rate, and significantly reduce the nutrient element high temperature evaporation losses such as nitrogen, phosphorus and potassium, thus more nutrient element is retained in charcoal base manure material, better meet production and the technical requirements that product supplied by charcoal base manure material as soil improvement agent and crop nutrition content.
Summary of the invention
It is an object of the invention to for the problems referred to above that prior art exists, it is provided that a kind of at CO2Prepare the device of novel charcoal base manure material under atmosphere, also provide a kind of at CO2Prepare the method for novel charcoal base manure material under atmosphere, within the scope of 350-450 DEG C, utilize CO2As reaction atmosphere, carry out pyrolysis at circulating fluidized bed and prepare the novel charcoal base manure material novel process being rich in nutrient element. Compared to common N2 reaction atmosphere, CO2As pyrolysis atmosphere, in 350-450 DEG C of temperature range, it is possible to greatly improve charcoal base manure material product rate, make the nutrient elements such as more nitrogen, phosphorus, potassium be retained in charcoal base manure material, reduce the discharge of the gas pollutant such as nitrogen, phosphorus simultaneously. But, at CO2Under atmosphere, if pyrolysis temperature is higher than 450 DEG C, even reach 600 DEG C or higher, then CO can occur2+ C 2CO gasification reaction, causes a large amount of charcoal losses, thus seriously affects charcoal base manure item matter, and N2Then not affecting by this condition as reaction atmosphere, it is even higher that temperature can reach 600 DEG C, and charcoal base fertilizer efficiency and production cost are improved greatly.
The above-mentioned purpose of the present invention is achieved through the following technical solutions:
A kind of at CO2The device of novel charcoal base manure material is prepared under atmosphere, comprise circulating fluid bed reactor, cyclonic separator and condensation washing tower, the top outlet of circulating fluid bed reactor is connected with cyclonic separator, and cyclonic separator upper end and condensation washing tower connect, and the lower end of cyclonic separator is connected with material returning device; Condensation washing tower upper end pneumatic outlet is collected gas holder with combustion gas and is connected, and is provided with tar and waste water collector below condensation washing tower; Combustion gas is collected gas holder and is connected with gas burner by valve, and gas burner is connected with circulating fluid bed reactor; CO2Gas source is connected to the conical lower portion of circulating fluid bed reactor by under meter, the conical lower portion of circulating fluid bed reactor is provided with multiple bell-type windshield, connected by screw feeder and feed bin in the middle part of circulating fluid bed reactor, circulating fluid bed reactor bottom is provided with charcoal base discharge port, and charcoal base discharge port is connected to charcoal base manure material collector by spiral discharging machine.
Charcoal base discharge port as above is positioned at the top of bell-type windshield.
The internal diameter of bell-type windshield as above is 40～50mm.
A kind of at CO2Prepare the method for novel charcoal base manure material under atmosphere, comprise the following steps:
Agricultural wastes after step 1, pulverizing, from feed bin, are delivered in circulating fluid bed reactor through screw feeder; CO2Gas is from CO2Gas source is passed into circulating fluid bed reactor through under meter, and by under meter regulable control CO2Air inlet flow, the quality of the agricultural wastes led in circulating fluid bed reactor per hour and the CO led in circulating fluid bed reactor per hour2The ratio of volume be 1.0～1.5:1, the mass unit of agricultural wastes is kilogram, CO2Volume unit be cubic meter; Temperature in circulating fluid bed reactor maintains within the scope of 350～450 DEG C by gas burner heat supply;
The charcoal base manure material that obtains after the pyrolytic reaction of 20～40min in step 2, circulating fluid bed reactor is also delivered to charcoal base manure material collector by spiral discharging machine;
The pyrolysis gas that step 3, pyrolytic reaction produce and the charcoal base particle taken out of with pyrolysis gas are disposed to cyclonic separator through the outlet of the top of circulating fluid bed reactor to carry out gas solid separation and obtains charcoal base particle and pyrolysis gas, charcoal base particle is transmitted back to circulating fluid bed reactor by material returning device, pyrolysis gas then by Cemented filling to condensation washing tower;
Step 4, pyrolysis gas carry out tar washing through condensation washing tower, obtain inflammable gas, and inflammable gas comprises CO, H2, combustible gas collecting collects gas holder to combustion gas, and combustion gas is collected gas holder and by valve, inflammable gas is transferred to gas burner; The tar that pyrolytic reaction produces then is expelled to tar and waste water collector by the outlet below condensation washing tower.
Compared with prior art, the advantage that the present invention has and effect are as follows in the present invention:
1, charcoal base manure material can promote the growth of plant and in great numbers, and the plants stems elongate leaf applying charcoal is very fast, and stem leaf is more sturdy, and leaf look more dark green, and same area blade area is also obviously greater than the plant without charcoal base soil fertility quality, and strain height and root length are all like this;
2, utilizing circulating fluid bed reactor pyrolysis agricultural wastes efficiency height, recycle circulating fluidized bed integral part cyclonic separator, carry out gas solid separation, the division of labor is clear and definite, process optimization;
3, CO is utilized2As the protection gas of pyrolytic reaction, it is possible not only to effectively utilize CO2Gas, alleviates Greenhouse effect, compared to N2Make protection gas, it is also possible to impel the nutrient elements such as more nitrogen, phosphorus, potassium to remain in charcoal, thus increase the raising degree to soil available nutrient
4,350～450 DEG C are utilized as pyrolysis reaction temperature scope, it is possible to keep higher charcoal base manure material product rate;
Table 1 product rate contrast table
(in table 1, BC400: prepare charcoal base manure material under 400 DEG C of carbon dioxide atmospheres; BC800: prepare charcoal base manure material under 800 DEG C of carbon dioxide atmospheres; )
5, inflammable gas (main CO and H that the secondary-cleaned to pyrolysis gas obtains is utilized2Deng) can as the fuel of heating plant, process optimization, energy-saving efficiency height.
6, compared to N2, canned CO2Market value lower, in addition owing to the main component of the boiler smoke of coal fired power generation factory is also CO2, so boiler of power plant waste gas can also directly be used as the reactant gases of charcoal base manure material, production cost can reduce again greatly.
Accompanying drawing explanation
Fig. 1 is the overall growing way comparison diagram of the naked oats dish applying BC400 and BN400;
Fig. 2 is single strain growing way comparison diagram of the naked oats dish applying BC400 and BN400;
Fig. 3 is the structural representation of the present invention.
In Fig. 3: 1-feed bin, 2-screw feeder, 3-circulating fluid bed reactor, 4-thermopair, 5-spiral discharging machine, 6-charcoal base manure material collector, 7-blast cap, 8-under meter, 9-CO2Gas source, 10-gas burner, 11-valve, gas holder is collected in 12-combustion gas, 13-condensation washing tower, 14-tar and waste water collector, 15-cyclonic separator, 16-material returning device.
Embodiment
Below in conjunction with accompanying drawing, the technical scheme of the present invention is further described:
Embodiment 1:
As shown in Figure 3, a kind of at CO2Prepare the device of novel charcoal base manure material under atmosphere, comprise circulating fluid bed reactor 3 and cyclonic separator 15, also comprise condensation washing tower 13. The top outlet of circulating fluid bed reactor 3 is connected with cyclonic separator 15, and cyclonic separator 15 upper end is connected with condensation washing tower 13, and lower end is connected with material returning device 16; Condensation washing tower 13 upper end pneumatic outlet is connected to combustion gas and collects gas holder 12, is provided with tar and waste water collector 14 below condensation washing tower 13; Combustion gas is collected gas holder 12 and is connected with gas burner 10 by valve 11 successively, and the high-temperature gas that gas burner 10 burning produces leads to into circulating fluid bed reactor 3; CO2Gas source 9 is connected to the conical lower portion of circulating fluid bed reactor 3 by under meter 8, is provided with the bell-type windshield 7 that a large amount of internal diameter is 40mm so that CO above the conical lower portion of circulating fluid bed reactor 32CO in gas source 92Can evenly enter in circulating fluid bed reactor 3. Being connected by screw feeder 2 and feed bin 1 in the middle part of circulating fluid bed reactor 3, circulating fluid bed reactor 3 bottom is provided with charcoal base discharge port, and charcoal base discharge port is connected to charcoal base manure material collector 6 by spiral discharging machine 5.
A kind of at CO2The method preparing novel charcoal base manure material under atmosphere also comprises the thermopair 4 being arranged on circulating fluid bed reactor 3 wall, precisely to control charcoal base manure material preparation temperature. The effect of thermopair, the mainly temperature of reaction of on-line monitoring fluidized-bed reactor inside, if temperature changes, can recognize at any time, and adjusts by heating unit and gas burner 12 in time.
A kind of at CO2Prepare the method for novel charcoal base manure material under atmosphere, comprise the following steps
Agricultural wastes (being mainly stalk, length is of a size of 5～10cm) after step 1, pulverizing, from feed bin 1, are delivered in circulating fluid bed reactor 3 through screw feeder 2; CO2Gas is from CO2Gas source 9 is passed into circulating fluid bed reactor 3 through under meter 8, makes the agricultural wastes in circulating fluid bed reactor 3 be the abundant heat exchange of fluidized state, and can regulable control CO by under meter 82Air inlet flow, it is m that the agricultural wastes treatment capacity in air inlet flow and fluidized-bed reactor 3 is closedStalk (kg/h):VCO2(m3/h)=1.0:1;Temperature in circulating fluid bed reactor 3 is maintained within the scope of 350 DEG C by gas burner 10 heat supply, thus carries out the pyrolysis of agricultural wastes;
The charcoal base manure material that obtains after the pyrolytic reaction of 20min in step 2, circulating fluid bed reactor 3 is also delivered to charcoal base manure material collector 6 by spiral discharging machine 5.
The pyrolysis gas that step 3, pyrolytic process produce and the tiny charcoal base particle taken out of with pyrolysis gas on a small quantity are disposed to cyclonic separator 15 through the outlet of the top of circulating fluid bed reactor 3 to carry out gas solid separation and obtains charcoal base particle and pyrolysis gas, charcoal base particle is transmitted back to circulating fluid bed reactor 3 by material returning device 16 again, by the pyrolysis gas of gas solid separation then by Cemented filling to condensation washing tower 13.
Step 4, carrying out tar washing through the pyrolysis gas of gas solid separation through condensation washing tower 13, obtain inflammable gas, inflammable gas comprises CO, H2Combustible gas collecting collects gas holder 12 to combustion gas, combustion gas is collected gas holder 12 and by valve 11, inflammable gas is transferred to gas burner 10, can be used as the fuel of heat supply of circulating fluid bed reactor 3 pyrolytic reaction, and gas burner 10 also can lead to the auxiliary fuel into outside input; The tar that pyrolytic reaction produces then is expelled to tar and waste water collector 14 by the outlet below condensation washing tower 13, then delivers to sewage work and carries out process up to standard.
Pyrolytic process in circulating fluid bed reactor 3: the agricultural wastes (being mainly stalk, be of a size of 5～10cm) after pulverizing from feed bin 1, through screw feeder 2 batch feed in circulating fluid bed reactor 3; CO2Gas is from CO2Gas source 9 is passed into circulating fluid bed reactor 3 through under meter 8, makes the agricultural wastes in circulating fluid bed reactor 3 be fluidized state, and controls CO by under meter 82Air inlet flow, it is m that the agricultural wastes treatment capacity in air inlet flow and fluidized-bed reactor 3 is closedStalk (kg/h):VCO2(m3/h)=1.0:1; Temperature in circulating fluid bed reactor 3 maintains within the scope of 350 DEG C by gas burner 10 heat supply, and then carrying out the pyrolysis of agricultural wastes, the charcoal base manure material that the pyrolytic reaction through 20min obtains is delivered to charcoal base manure material collector 6 through spiral discharging machine 5 and collects.
The a small amount of charcoal base particle discharged with pyrolysis gas is separated through cyclonic separator 15, and is transmitted back to circulating fluid bed reactor 3 by material returning device 16; Then entered condensation washing tower 13 by the gas of gas solid separation and carry out further purification, CO, the H obtained2It is collected into combustion gas collects gas holder 12 in the mixture of inflammable gas, it is possible to as the fuel of heat supply of front end circulating fluidized bed pyrolytic process; The tar being separated then is collected in tar and waste water collector 14.
Charcoal base manure material contrast table prepared by table 2 under 350 DEG C of carbonic acid gas/nitrogen atmospheres
In table 2, BC350: the present embodiment 1 prepares charcoal base manure material under 350 DEG C of carbon dioxide atmospheres; BN350: according to the method for the present embodiment 1, by CO2Gas source is changed to N2Gas source, prepares charcoal base manure material under 350 DEG C of nitrogen atmospheres.
Embodiment 2:
As shown in Figure 3, a kind of at CO2Prepare the device of novel charcoal base manure material under atmosphere, comprise circulating fluid bed reactor 3 and cyclonic separator 15, also comprise condensation washing tower 13. The top outlet of circulating fluid bed reactor 3 is connected with cyclonic separator 15, and cyclonic separator 15 upper end is connected with condensation washing tower 13, and lower end is connected with material returning device 16; Condensation washing tower 13 upper end pneumatic outlet is connected to combustion gas and collects gas holder 12, is provided with tar and waste water collector 14 below condensation washing tower 13;Combustion gas is collected gas holder 12 and is connected with gas burner 10 by valve 11 successively, and the high-temperature gas that gas burner 10 burning produces leads to into circulating fluid bed reactor 3; CO2Gas source 9 is connected to the conical lower portion of circulating fluid bed reactor 3 by under meter 8, is provided with the bell-type windshield 7 that a large amount of internal diameter is 45mm so that CO above the conical lower portion of circulating fluid bed reactor 32CO2 in gas source 9 can evenly enter in circulating fluid bed reactor 3. Being connected by screw feeder 2 and feed bin 1 in the middle part of circulating fluid bed reactor 3, circulating fluid bed reactor 3 bottom is provided with charcoal base discharge port, and charcoal base discharge port is connected to charcoal base manure material collector 6 by spiral discharging machine 5.
A kind of at CO2The method preparing novel charcoal base manure material under atmosphere also comprises the thermopair 4 being arranged on circulating fluid bed reactor 3 wall, precisely to control charcoal base manure material preparation temperature. The effect of thermopair, the mainly temperature of reaction of on-line monitoring fluidized-bed reactor inside, if temperature changes, can recognize at any time, and adjusts by heating unit and gas burner 12 in time.
A kind of at CO2Prepare the method for novel charcoal base manure material under atmosphere, comprise the following steps:
Agricultural wastes (being mainly stalk, length is of a size of 5～10cm) after step 1, pulverizing, from feed bin 1, are delivered in circulating fluid bed reactor 3 through screw feeder 2; CO2Gas is from CO2Gas source 9 is passed into circulating fluid bed reactor 3 through under meter 8, makes the agricultural wastes in circulating fluid bed reactor 3 be the abundant heat exchange of fluidized state, and can regulable control CO by under meter 82Air inlet flow, it is m stalk (kg/h): VCO that the agricultural wastes treatment capacity in air inlet flow and fluidized-bed reactor 3 is closed2(m3/h)=1.2:1; Temperature in circulating fluid bed reactor 3 is maintained within the scope of 400 DEG C by gas burner 10 heat supply, thus carries out the pyrolysis of agricultural wastes;
The charcoal base manure material that obtains after the pyrolytic reaction of 30min in step 2, circulating fluid bed reactor 3 is also delivered to charcoal base manure material collector 6 by spiral discharging machine 5.
The pyrolysis gas that step 3, pyrolytic process produce and the tiny charcoal base particle taken out of with pyrolysis gas on a small quantity are disposed to cyclonic separator 15 through the outlet of the top of circulating fluid bed reactor 3 to carry out gas solid separation and obtains charcoal base particle and pyrolysis gas, charcoal base particle is transmitted back to circulating fluid bed reactor 3 by material returning device 16 again, by the pyrolysis gas of gas solid separation then by Cemented filling to condensation washing tower 13.
Step 4, carrying out tar washing through the pyrolysis gas of gas solid separation through condensation washing tower 13, obtain inflammable gas, inflammable gas comprises CO, H2Combustible gas collecting collects gas holder 12 to combustion gas, combustion gas is collected gas holder 12 and by valve 11, inflammable gas is transferred to gas burner 10, can be used as the fuel of heat supply of circulating fluid bed reactor 3 pyrolytic reaction, and gas burner 10 also can lead to the auxiliary fuel into outside input; The tar that pyrolytic reaction produces then is expelled to tar and waste water collector 14 by the outlet below condensation washing tower 13, then delivers to sewage work and carries out process up to standard.
Charcoal base manure material contrast table prepared by table 3 table under 400 DEG C of carbonic acid gas/nitrogen atmospheres
In table 3, BC400: the present embodiment 2 prepares charcoal base manure material under 400 DEG C of carbon dioxide atmospheres; BN400: according to the method for the present embodiment 2, by CO2Gas source is changed to N2Gas source, prepares charcoal base manure material under 400 DEG C of nitrogen atmospheres.
After applying two kinds of charcoal base manure material, Fig. 1 and Fig. 2 is shown in the growing way contrast that is overall and single strain of naked oats dish crop.
Embodiment 3:
As shown in Figure 3, a kind of at CO2Prepare the device of novel charcoal base manure material under atmosphere, comprise circulating fluid bed reactor 3 and cyclonic separator 15, also comprise condensation washing tower 13. The top outlet of circulating fluid bed reactor 3 is connected with cyclonic separator 15, and cyclonic separator 15 upper end is connected with condensation washing tower 13, and lower end is connected with material returning device 16; Condensation washing tower 13 upper end pneumatic outlet is connected to combustion gas and collects gas holder 12, is provided with tar and waste water collector 14 below condensation washing tower 13; Combustion gas is collected gas holder 12 and is connected with gas burner 10 by valve 11 successively, and the high-temperature gas that gas burner 10 burning produces leads to into circulating fluid bed reactor 3; CO2Gas source 9 is connected to the conical lower portion of circulating fluid bed reactor 3 by under meter 8, is provided with the bell-type windshield 7 that a large amount of internal diameter is 50mm so that CO above the conical lower portion of circulating fluid bed reactor 32CO in gas source 92Can evenly enter in circulating fluid bed reactor 3. Being connected by screw feeder 2 and feed bin 1 in the middle part of circulating fluid bed reactor 3, circulating fluid bed reactor 3 bottom is provided with charcoal base discharge port, and charcoal base discharge port is connected to charcoal base manure material collector 6 by spiral discharging machine 5.
A kind of at CO2The method preparing novel charcoal base manure material under atmosphere also comprises the thermopair 4 being arranged on circulating fluid bed reactor 3 wall, precisely to control charcoal base manure material preparation temperature. The effect of thermopair, the mainly temperature of reaction of on-line monitoring fluidized-bed reactor inside, if temperature changes, can recognize at any time, and adjusts by heating unit and gas burner 12 in time.
A kind of at CO2Prepare the method for novel charcoal base manure material under atmosphere, comprise the following steps:
Agricultural wastes (being mainly stalk, length is of a size of 5～10cm) after step 1, pulverizing, from feed bin 1, are delivered in circulating fluid bed reactor 3 through screw feeder 2; CO2Gas is from CO2Gas source 9 is passed into circulating fluid bed reactor 3 through under meter 8, makes the agricultural wastes in circulating fluid bed reactor 3 be the abundant heat exchange of fluidized state, and can regulable control CO by under meter 82Air inlet flow, it is m stalk (kg/h): VCO that the agricultural wastes treatment capacity in air inlet flow and fluidized-bed reactor 3 is closed2(m3/h)=1.5:1; Temperature in circulating fluid bed reactor 3 is maintained within the scope of 450 DEG C by gas burner 10 heat supply, thus carries out the pyrolysis of agricultural wastes;
The charcoal base manure material that obtains after the pyrolytic reaction of 40min in step 2, circulating fluid bed reactor 3 is also delivered to charcoal base manure material collector 6 by spiral discharging machine 5.
The pyrolysis gas that step 3, pyrolytic process produce and the tiny charcoal base particle taken out of with pyrolysis gas on a small quantity are disposed to cyclonic separator 15 through the outlet of the top of circulating fluid bed reactor 3 to carry out gas solid separation and obtains charcoal base particle and pyrolysis gas, charcoal base particle is transmitted back to circulating fluid bed reactor 3 by material returning device 16 again, by the pyrolysis gas of gas solid separation then by Cemented filling to condensation washing tower 13.
Step 4, carrying out tar washing through the pyrolysis gas of gas solid separation through condensation washing tower 13, obtain inflammable gas, inflammable gas comprises CO, H2Combustible gas collecting collects gas holder 12 to combustion gas, combustion gas is collected gas holder 12 and by valve 11, inflammable gas is transferred to gas burner 10, can be used as the fuel of heat supply of circulating fluid bed reactor 3 pyrolytic reaction, and gas burner 10 also can lead to the auxiliary fuel into outside input;The tar that pyrolytic reaction produces then is expelled to tar and waste water collector 14 by the outlet below condensation washing tower 13, then delivers to sewage work and carries out process up to standard.
Charcoal base manure material contrast table prepared by table 4 under 450 DEG C of carbonic acid gas/nitrogen atmospheres
In table 4, BC450: the present embodiment 3 prepares charcoal base manure material under 450 DEG C of carbon dioxide atmospheres; BN450: according to the method for the present embodiment 3, by CO2Gas source is changed to N2Gas source, prepares charcoal base manure material under 450 DEG C of nitrogen atmospheres.
Specific embodiment described herein is only to the present invention's spirit explanation for example. Described specific embodiment can be made various amendment or supplements or adopt similar mode to substitute by those skilled in the art, but can't deviate the spirit of the present invention or surmount the scope that appended claims defines.
Claims (4)
1. one kind at CO2The device of novel charcoal base manure material is prepared under atmosphere, it is characterized in that, comprise circulating fluid bed reactor (3), cyclonic separator (15) and condensation washing tower (13), the top outlet of circulating fluid bed reactor (3) is connected with cyclonic separator (15), cyclonic separator (15) upper end is connected with condensation washing tower (13), and cyclonic separator (15) lower end is connected with material returning device (16); Condensation washing tower (13) upper end pneumatic outlet is collected gas holder (12) with combustion gas and is connected, and condensation washing tower (13) lower section is provided with tar and waste water collector (14); Combustion gas is collected gas holder (12) and is connected with gas burner (10) by valve (11), and gas burner (10) is connected with circulating fluid bed reactor (3); CO2Gas source (9) is connected to the conical lower portion of circulating fluid bed reactor (3) by under meter (8), the conical lower portion of circulating fluid bed reactor (3) is provided with multiple bell-type windshield (7), circulating fluid bed reactor (3) middle part is connected by screw feeder (2) and feed bin (1), circulating fluid bed reactor (3) bottom is provided with charcoal base discharge port, and charcoal base discharge port is connected to charcoal base manure material collector (6) by spiral discharging machine (5).
2. one according to claim 1 is at CO2The device of novel charcoal base manure material is prepared under atmosphere, it is characterised in that, described charcoal base discharge port is positioned at the top of bell-type windshield (7).
3. a kind of device preparing novel charcoal base manure material under CO2 atmosphere according to claim 2, it is characterised in that, the internal diameter of described bell-type windshield (7) is 40～50mm.
4. one kind utilizes the method that device described in claim 1 prepares novel charcoal base manure material under CO2 atmosphere, it is characterised in that, comprise the following steps:
Agricultural wastes after step 1, pulverizing, from feed bin (1), are delivered in circulating fluid bed reactor (3) through screw feeder (2); CO2Gas is from CO2Gas source (9) is passed into circulating fluid bed reactor (3) through under meter (8), and by under meter (8) regulable control CO2Air inlet flow, the quality of the agricultural wastes led in circulating fluid bed reactor (3) per hour and the CO led in circulating fluid bed reactor (3) per hour2The ratio of volume be 1.0～1.5:1, the mass unit of agricultural wastes is kilogram, CO2Volume unit be cubic meter; Temperature in circulating fluid bed reactor (3) maintains within the scope of 350～450 DEG C by gas burner (10) heat supply;
The charcoal base manure material that obtains after the pyrolytic reaction of 20～40min in step 2, circulating fluid bed reactor (3) is also delivered to charcoal base manure material collector (6) by spiral discharging machine (5);
The pyrolysis gas that step 3, pyrolytic reaction produce and the charcoal base particle taken out of with pyrolysis gas are disposed to cyclonic separator (15) through the outlet of the top of circulating fluid bed reactor (3) to carry out gas solid separation and obtains charcoal base particle and pyrolysis gas, charcoal base particle is transmitted back to circulating fluid bed reactor (3) by material returning device (16), pyrolysis gas then by Cemented filling to condensation washing tower (13);
Step 4, pyrolysis gas carry out tar washing through condensation washing tower (13), obtain inflammable gas, and inflammable gas comprises CO, H2, gas holder (12) is collected in combustible gas collecting to combustion gas, and combustion gas is collected gas holder (12) and by valve (11), inflammable gas is transferred to gas burner (10); The tar that pyrolytic reaction produces then is expelled to tar and waste water collector (14) by the outlet of condensation washing tower (13) lower section.
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| CN106753485A (en) * | 2017-03-20 | 2017-05-31 | 华中农业大学 | Ablation energy prepares the device and method of charcoal, oil and combustion gas with nutrient element |
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| CN104557313A (en) * | 2015-01-19 | 2015-04-29 | 合肥德博生物能源科技有限公司 | Production equipment of biomass carbon compound fertilizer and production process of biomass carbon compound fertilizer |
| CN105315098A (en) * | 2015-06-04 | 2016-02-10 | 浙江科技学院 | Preparation method for rice straw carbon-based fertilizer for reducing rice field greenhouse gas emissions |
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| CN106753485A (en) * | 2017-03-20 | 2017-05-31 | 华中农业大学 | Ablation energy prepares the device and method of charcoal, oil and combustion gas with nutrient element |
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