CN113150805B - Aerobic cracking device for continuous feeding and working method thereof - Google Patents
Aerobic cracking device for continuous feeding and working method thereof Download PDFInfo
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- CN113150805B CN113150805B CN202110171247.XA CN202110171247A CN113150805B CN 113150805 B CN113150805 B CN 113150805B CN 202110171247 A CN202110171247 A CN 202110171247A CN 113150805 B CN113150805 B CN 113150805B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B31/00—Charging devices
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
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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 invention belongs to the technical field of burners, and particularly relates to an aerobic cracking device for continuous feeding and a working method thereof. The device comprises a continuous feeding aerobic cracking furnace body, a cyclone continuous feeding device arranged at one side port of the continuous feeding aerobic cracking furnace body, N high-temperature plasma accelerators arranged on the cyclone continuous feeding device, a furnace chamber wall arranged in front of the cyclone continuous feeding device and a medium blocking temperature rising plate arranged between the furnace chamber walls, wherein N is a positive integer; the high-temperature plasma accelerators are fixed at the center of the cyclone continuous feeding device; the high-temperature plasma accelerators are all used for releasing flame bodies; the furnace wall is fixed inside the continuous feeding aerobic cracking furnace body through a clamping piece. The invention has the characteristics of saving the manufacturing cost and the production cost, strong reliability, large treatment capacity, short time, quick preheating and temperature rise and realization of continuous feeding.
Description
Technical Field
The invention belongs to the technical field of combustors, and particularly relates to an aerobic cracking device for continuous feeding and a working method thereof.
Background
At present, the adopted technology for thermal cracking of organic matters is generally anaerobic cracking technology. Because the natural heat source is added with anaerobic cracking, a large stacker and long-time natural passive heat accumulation are needed to complete the process of anaerobic cracking of organic matters. However, the above method has the disadvantages of adopting static thermal cracking, treating organic matters with less weight, long time (generally anaerobic static thermal cracking time is 5-6 hours), and high equipment processing cost.
The problem can be solved by using a high-temperature plasma dynamic thermal field technology. However, the high temperature plasma dynamic thermal field technique also has problems. The high-temperature high-energy plasma gas generated by the flame body of the high-temperature plasma accelerator can play a role of dynamically cracking organic matters only in a high-temperature environment. In addition, the existing thermal plasma dynamic thermal field technology cannot realize continuous feeding of the closed cavity.
Therefore, it is necessary to design an aerobic cracking apparatus for continuous feeding, which can save manufacturing cost and production cost, has strong reliability, and can quickly preheat and heat up.
For example, the heat storage device for a burner described in chinese utility model application No. CN201220644295.2 further includes a combustion-supporting air and induced air inlet, a combustion-supporting air and induced air pipeline, a natural gas inlet, a heat storage body support plate, a heat storage body, a viewing and exploring fire, a natural gas injection device, a gas distribution bowl, an external heat insulation, and a burner head; the shell is fixedly connected with the combustion head through a mounting flange; the observation and exploration fire, the natural gas injection device, the combustion-supporting air and the induced draft pipeline are fixedly connected with the shell through a first flange and a second flange; the natural gas injection device is positioned in the center of the machine shell; the combustion-supporting air and induced air inlet and the natural gas inlet are arranged at the lower end of the combustor casing, the two heat accumulator supporting plates respectively support the heat accumulators up and down and fix the heat accumulators on the casing, and air can pass through the supporting plates and the heat accumulators to reach the tail end of the casing. Although the combustor heat storage device heats the heat storage body by recycling high-temperature flue gas discharged by other combustors, so that the heated medium is heated to a higher temperature and enters the hearth, the heating of materials in the furnace is realized, the furnace gas circulation in the heating furnace is enhanced, the temperature field of the furnace is uniform, and the heating quality is improved, the combustor heat storage device has the defects that the temperature rising speed is low, a sustainable dynamic suspension cracking organic matter temperature field is difficult to construct, the use has limitation, and the continuous feeding of a closed cavity cannot be realized.
Disclosure of Invention
The invention aims to solve the problems that the existing anaerobic cracking technology for carrying out thermal cracking on organic matters has less organic matter weight, long time and high equipment processing cost and can not realize continuous feeding on a closed cavity in the prior art, and provides the aerobic cracking device for continuous feeding and the working method thereof, which have the advantages of manufacturing cost and production cost saving, strong reliability, large treatment capacity, short time and quick preheating and temperature rise.
In order to achieve the purpose, the invention adopts the following technical scheme:
the aerobic cracking device for continuous feeding comprises a continuous feeding aerobic cracking furnace body, a cyclone continuous feeding device arranged at one side port of the continuous feeding aerobic cracking furnace body, N high-temperature plasma accelerators arranged on the cyclone continuous feeding device, a furnace chamber wall arranged in front of the cyclone continuous feeding device and a medium blocking temperature rising plate arranged between the furnace chamber walls, wherein N is a positive integer; the high-temperature plasma accelerators are fixed at the center of the cyclone continuous feeding device; the high-temperature plasma accelerators are all used for releasing flame bodies; the furnace wall is fixed inside the continuous feeding aerobic cracking furnace body through a clamping piece.
Preferably, a material collecting area is arranged above the interior of the cyclone continuous feeding device; the lower end in the cyclone continuous feeding device is provided with an air inlet; the material collecting area is externally connected with a feeding machine; the air inlet is externally connected with a fan.
Preferably, a material channel and an air inlet channel are further arranged in the cyclone continuous feeding device; the cyclone continuous feeding device is also provided with two cyclone openings; the material collecting area is communicated with a cyclone port through a material channel; the air inlet is communicated with the other cyclone opening through an air inlet duct; cyclone guide plates of the cyclones are arranged in the material channel and the air inlet channel.
Preferably, the space formed by the flame body released by the high-temperature plasma accelerator, the furnace chamber wall and the medium blocking heating plate is a temperature field of a primary high-temperature high-energy cracking area; two cyclone openings arranged on the cyclone continuous feeding device are communicated with the temperature field of the primary high-temperature high-energy pyrolysis zone; the temperature field of the primary high-temperature high-energy cracking area is provided with a smoke and dust outlet.
Preferably, the hearth wall is made of refractory materials and is in a round-octagonal-column-shaped shape; the diameter of the hearth wall is 100cm-5520cm, the thickness is 10cm-30cm, and the length is 10cm-1200 cm.
Preferably, an ash storage device is arranged below the continuous feeding aerobic cracking furnace body; the ash storage device is communicated with the continuous feeding aerobic cracking furnace body; and an ash outlet is arranged on the ash storage device.
Preferably, a smoke outlet pipeline is arranged above the continuous feeding aerobic cracking furnace body; the smoke outlet pipeline is communicated with the continuous feeding aerobic cracking furnace body; the smoke outlet is arranged on the smoke outlet pipeline.
Preferably, the number of the high temperature plasma accelerators is in the range of 1 to 10.
The invention also provides a working method of the aerobic cracking device for continuous feeding, wherein a secondary medium-temperature aerobic spontaneous combustion cracking field is also arranged in the continuous feeding aerobic cracking furnace body and is communicated with the temperature field of the primary high-temperature high-energy cracking area through a smoke outlet and a dust outlet; the method comprises the following steps:
s1, preheating;
preheating a primary high-temperature high-energy cracking zone temperature field in a continuously-fed aerobic cracking furnace body, namely heating a dielectric barrier heating plate, starting to release flame bodies by all high-temperature plasma accelerators, and finishing preheating when the dielectric barrier heating plate is observed to turn dark red;
s2, a feeding stage;
when the preheating is finished, the organic matter powder with the particle size of less than 2mm enters the cyclone continuous feeding device through the feeding machine, and meanwhile, a fan externally connected with the cyclone continuous feeding device is started, so that the organic matter powder rotates by utilizing wind energy and forms a temperature field which can be driven to uniformly enter a primary high-temperature high-energy cracking area;
s3, primary cracking stage;
when the organic matter powder enters a primary high-temperature high-energy cracking area temperature field in a rotating state, 65-85% of the organic matter powder is subjected to suspension cracking under the action of flame released by a high-temperature plasma accelerator in a temperature field environment of 300-3000 ℃; simultaneously, pulling apart nitrogen bonds in 65% of air to form water-soluble nitrogen oxide with oxygen;
the flue gas containing the nitrogen oxide generated after the primary cracking enters the next work area and is used for forming a high-concentration water-soluble fertilizer;
s4, secondary cracking stage;
after the organic matter powder is subjected to primary cracking, the inner core of the organic matter powder is not completely cracked, the organic matter powder enters a secondary medium-temperature aerobic spontaneous combustion cracking field through a smoke outlet and dust outlet of a temperature field of a primary high-temperature high-energy cracking area to be subjected to spontaneous combustion secondary cracking, and smoke containing nitrogen oxide generated after the secondary cracking also enters a next work area to be used for forming a high-concentration water-soluble fertilizer;
and (3) changing the organic matter powder subjected to secondary cracking into silicon-potassium powder, and storing and discharging the formed silicon-potassium powder.
Compared with the prior art, the invention has the beneficial effects that: (1) the invention realizes the aerobic dynamic sustainable cracking of organic matters, creates a cyclone feeding flow type dynamic sustainable cracking process flow, realizes a process combining primary high-temperature high-energy cracking and secondary medium-temperature aerobic cracking, fully oxygenizes organic matter powder, and can realize the possibility of processing the organic matter powder on a large scale; (2) the invention can realize the treatment capacity of 200kg-4000 kg/h of plant straws, has low treatment cost, the treatment cost per ton is 50-150 yuan, and the treated smoke gas is a high-concentration organic water-soluble fertilizer after being dissolved in water, can replace chemical fertilizers, realizes the ecological green planting of grains and has the cost of only 60-70 percent of the chemical fertilizers; (3) the invention can realize that the organic matter powder is instantaneously cracked into organic monosaccharide organic micromolecule smoke body from organic aggregate polysaccharide and protein, and nitrogen bonds in compound amino acid, phenols and air are pulled apart to form water-soluble nitric oxide with oxygen.
Drawings
FIG. 1 is a flow diagram of a plasma fertilizer production process;
FIG. 2 is a schematic view of a configuration of an aerobic cracking apparatus for continuous feed according to the present invention;
FIG. 3 is a schematic structural view of a cyclone continuous feeding device in the present invention;
FIG. 4 is a schematic view showing the structure of an aerobic cracking apparatus for continuous feed of the present invention when primary cracking and secondary cracking are performed.
In the figure: the device comprises a continuous feeding aerobic cracking furnace body 1, a cyclone continuous feeding device 2, a high-temperature plasma accelerator 3, a furnace chamber wall 4, a medium blocking temperature rising plate 5, a flame body 6, an observation window 7, a material collecting area 8, an air inlet 9, a feeding machine 10, a material channel 11, an air inlet channel 12, a cyclone port 13, a cyclone flow guide plate 14, a primary high-temperature high-energy cracking area temperature field 15, a smoke and dust outlet 16, an ash storage device 17, an ash outlet 18, a smoke outlet channel 19, a smoke outlet 20 and a secondary medium-temperature aerobic spontaneous combustion cracking field 21.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention, the following description will explain specific embodiments of the present invention with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
Example 1:
fig. 1 shows a flow chart of a plasma fertilizer production process. And (3) completing the plasma fertilizer preparation, and sequentially processing the fertilizer by a feeding work area, a combustion work area, a water-soluble work area, a low-temperature plasma outer vortex mixing work area, a water-soluble vortex mixing processing work area and a plasma zero electromagnetic field force processing work area. The aerobic cracking device for continuous feeding is positioned in a combustion working area, and is an improvement on the combustion working area.
The aerobic cracking device for continuous feeding as shown in fig. 2 comprises a continuous feeding aerobic cracking furnace body 1, a cyclone continuous feeding device 2 arranged at one side port of the continuous feeding aerobic cracking furnace body, two high-temperature plasma accelerators 3 arranged on the cyclone continuous feeding device, a hearth wall 4 arranged in front of the cyclone continuous feeding device and a medium blocking temperature rising plate 5 arranged between the hearth walls; the high-temperature plasma accelerators are all fixed in the center of the cyclone continuous feeding device; the high-temperature plasma accelerators are all used for releasing flame 6; the furnace wall is fixed inside the continuous feeding aerobic cracking furnace body through a clamping piece.
Wherein, the distance between the medium blocking temperature rising plate and the cyclone continuous feeding device and the high-temperature plasma accelerator is 5cm-1000 cm. The power supply output frequency of the high-temperature plasma accelerator is 0Hz to 20kHz, and the voltage is 2 ten thousand volts to 25 ten thousand volts. And an observation window 7 is arranged at the right port of the continuous feeding aerobic cracking furnace body and is used for observing the color change of the heated medium blocking heating plate.
Further, as shown in fig. 3, a material collecting area 8 is arranged above the interior of the cyclone continuous feeding device; the lower end in the cyclone continuous feeding device is provided with an air inlet 9; the material collecting area is externally connected with a feeding machine 10; the air inlet is externally connected with a fan. By utilizing wind energy, the organic matter powder can rotate and form a driving force to uniformly enter a temperature field for cracking.
Further, a material channel 11 and an air inlet channel 12 are also arranged in the cyclone continuous feeding device; the cyclone continuous feeding device is also provided with two cyclone openings 13; the material collecting area is communicated with a cyclone port through a material channel; the air inlet is communicated with the other cyclone opening through an air inlet duct; and cyclone guide plates 14 of the cyclones are arranged in the material channel and the air inlet channel. The cyclone guide plate of the cyclone plays a role in drainage, so that organic matter powder can rotate under the action of wind energy and can be driven to uniformly enter a temperature field for cracking.
Further, a space formed by a flame body released by the high-temperature plasma accelerator, a hearth wall and a medium blocking heating plate is a primary high-temperature high-energy cracking area temperature field 15; two cyclone openings arranged on the cyclone continuous feeding device are communicated with the temperature field of the primary high-temperature high-energy pyrolysis zone; the temperature field of the primary high-temperature high-energy cracking area is provided with a smoke and dust outlet 16. The whole inner diameter of the temperature field of the primary high-temperature high-energy pyrolysis zone is 80cm-5000 cm.
Furthermore, the hearth wall is made of refractory materials and is in a round-octagonal-column-shaped shape; the diameter of the hearth wall is 100cm-5520cm, the thickness is 10cm-30cm, and the length is 10cm-1200 cm.
Further, as shown in fig. 2, an ash storage device 17 is installed below the continuous feeding aerobic cracking furnace body; the ash storage device is communicated with the continuous feeding aerobic cracking furnace body; the ash storage device is provided with an ash outlet 18. The ash storage device is used for storing the silicon-potassium powder changed from the organic matter powder after secondary cracking and discharging the silicon-potassium powder through the ash outlet.
Further, a smoke outlet pipeline 19 is arranged above the continuous feeding aerobic cracking furnace body; the smoke outlet pipeline is communicated with the continuous feeding aerobic cracking furnace body; the smoke outlet pipe is provided with a smoke outlet 20. And (3) allowing smoke generated after primary cracking and secondary cracking of the organic matter powder to enter the next work area through a smoke outlet pipeline to form the high-concentration water-soluble fertilizer.
Further, the number of the high-temperature plasma accelerators ranges from 1 to 10.
In addition, the medium blocking temperature rise plate is a double-layer material plate, the double-layer material plate comprises a temperature-resistant metal plate and a refractory material plate, and the temperature-resistant metal plate is tightly attached to the refractory material plate. Wherein, what directly contacted with the temperature field of the primary high-temperature high-energy pyrolysis zone is the temperature resistant metal sheet, laminate the refractory plate outside the temperature resistant metal sheet.
The temperature-resistant metal plate is made of a high-temperature alloy material capable of resisting 3000-4500 ℃, the diameter of the temperature-resistant metal plate is 50-4552 cm, and the thickness of the temperature-resistant metal plate is 10-100 cm. The refractory plate can resist 3000-4500 ℃, the diameter is 50-4552 cm, and the thickness is 1-100 cm.
Besides the temperature field of the primary high-temperature high-energy cracking area, a secondary medium-temperature aerobic spontaneous combustion cracking field 21 is also arranged in the continuous feeding aerobic cracking furnace body, and the secondary medium-temperature aerobic spontaneous combustion cracking field is communicated with the temperature field of the primary high-temperature high-energy cracking area through a smoke outlet and dust outlet. The secondary medium-temperature aerobic spontaneous combustion cracking field is between 300 and 1000 ℃.
Based on example 1, as shown in fig. 2 and 4, the present invention also provides a method for operating an aerobic cracking unit with continuous feeding, comprising the steps of:
s1, preheating;
preheating a primary high-temperature high-energy cracking zone temperature field in a continuously-fed aerobic cracking furnace body, namely heating a dielectric barrier heating plate, starting to release flame bodies by all high-temperature plasma accelerators, and finishing preheating when the dielectric barrier heating plate is observed to turn dark red;
s2, a feeding stage;
when the preheating is finished, the organic matter powder with the particle size of less than 2mm enters the cyclone continuous feeding device through the feeding machine, and meanwhile, a fan externally connected with the cyclone continuous feeding device is started, so that the organic matter powder rotates by utilizing wind energy and forms a temperature field which can be driven to uniformly enter a primary high-temperature high-energy cracking area;
s3, primary cracking stage;
when organic matter powder enters a primary high-temperature high-energy cracking area temperature field in a rotating state, 65-85% of organic matter powder is subjected to suspension cracking under the action of flame released by a high-temperature plasma accelerator in a temperature field environment of 300-3000 ℃; simultaneously, pulling apart nitrogen bonds in 65% of air to form water-soluble nitrogen oxide with oxygen;
the flue gas containing nitrogen oxide generated after the primary cracking enters the next work area and is used for forming a high-concentration water-soluble fertilizer;
s4, secondary cracking stage;
after the organic matter powder is subjected to primary cracking, the inner core of the organic matter powder is not completely cracked, the organic matter powder enters a secondary medium-temperature aerobic spontaneous combustion cracking field through a smoke outlet and dust outlet of a temperature field of a primary high-temperature high-energy cracking area to be subjected to spontaneous combustion secondary cracking, and smoke containing nitrogen oxide generated after the secondary cracking also enters a next work area to be used for forming a high-concentration water-soluble fertilizer;
and (3) changing the organic matter powder subjected to secondary cracking into silicon-potassium powder, and storing and discharging the formed silicon-potassium powder.
In step S3, the organic matter powder is instantaneously cracked from the organic aggregate polysaccharides and proteins into organic monosaccharide organic small molecule smoke, and the nitrogen bonds in the compound amino acids, phenols and air are pulled apart to form water-soluble nitrogen oxide with oxygen.
The primary high-temperature high-energy pyrolysis zone temperature field can effectively generate a temperature field of 300-3000 ℃, and a sustainable dynamic suspension pyrolysis organic matter temperature field can be constructed by adding high-temperature high-energy plasma gas generated by a flame body released by a high-temperature plasma accelerator.
The temperature-resistant metal plate is contacted with high-temperature high-energy plasma gas generated by a flame body released by a high-temperature plasma accelerator, and can generate a temperature field of 300-3000 ℃ in a primary high-temperature high-energy cracking zone temperature field after being heated and preheated for 1-15 minutes.
According to the cyclone continuous feeding device, organic matter powder is filled into the material collection area from the hopper, enters the cyclone continuous feeding device through the rotating pipe, and enters the temperature field of the primary high-temperature high-energy cracking area.
The invention realizes the aerobic dynamic sustainable cracking of organic matters, creates a cyclone feeding flow type dynamic sustainable cracking process flow, realizes the process combining the primary high-temperature high-energy cracking and the secondary medium-temperature aerobic cracking, leads the organic matter powder to be fully subjected to aerobic cracking, and can realize the possibility of processing the organic matter powder on a large scale; the invention can realize the treatment capacity of 200kg-4000 kg/hour of plant straws, has low treatment cost, the treatment cost per ton is 50-150 yuan, and the treated smoke gas is a high-concentration organic water-soluble fertilizer after being dissolved in water, can replace a chemical fertilizer, realizes the ecological and green planting of grains and has the cost of only 60-70 percent of the chemical fertilizer.
The foregoing has outlined, rather broadly, the preferred embodiment and principles of the present invention in order that those skilled in the art may better understand the detailed description of the invention without departing from its broader aspects.
Claims (5)
1. The working method of the aerobic cracking device for continuous feeding is characterized in that the aerobic cracking device for continuous feeding comprises a continuous feeding aerobic cracking furnace body, a cyclone continuous feeding device arranged at one side port of the continuous feeding aerobic cracking furnace body, N high-temperature plasma accelerators arranged on the cyclone continuous feeding device, a hearth wall arranged in front of the cyclone continuous feeding device and a medium blocking temperature rising plate arranged between the hearth walls, wherein N is a positive integer; the high-temperature plasma accelerators are all fixed in the center of the cyclone continuous feeding device; the high-temperature plasma accelerators are all used for releasing flame bodies; the hearth wall is fixed inside the continuous feeding aerobic cracking furnace body through a clamping piece;
a material collecting area is arranged above the interior of the cyclone continuous feeding device; the lower end in the cyclone continuous feeding device is provided with an air inlet; the material collecting area is externally connected with a feeding machine; the air inlet is externally connected with a fan;
a material channel and an air inlet channel are also arranged in the cyclone continuous feeding device; the cyclone continuous feeding device is also provided with two cyclone openings; the material collecting area is communicated with a cyclone opening through a material channel; the air inlet is communicated with the other cyclone opening through an air inlet duct; cyclone guide plates of the cyclones are arranged in the material channel and the air inlet channel;
the space formed by the flame body released by the high-temperature plasma accelerator, the hearth wall and the dielectric barrier heating plate is a temperature field of a primary high-temperature high-energy cracking area; two cyclone openings arranged on the cyclone continuous feeding device are communicated with the temperature field of the primary high-temperature high-energy pyrolysis zone; the temperature field of the primary high-temperature high-energy cracking area is provided with a smoke and dust outlet;
a secondary medium-temperature aerobic spontaneous combustion cracking field is also arranged in the continuous feeding aerobic cracking furnace body and is communicated with the temperature field of the primary high-temperature high-energy cracking area through a smoke and dust outlet; the method comprises the following steps:
s1, preheating;
preheating a primary high-temperature high-energy cracking zone temperature field in a continuously-fed aerobic cracking furnace body, namely heating a dielectric barrier heating plate, starting to release flame bodies by all high-temperature plasma accelerators, and finishing preheating when the dielectric barrier heating plate is observed to turn dark red;
s2, a feeding stage;
when the preheating is finished, the organic matter powder with the particle size of less than 2mm enters the cyclone continuous feeding device through the feeding machine, and meanwhile, a fan externally connected with the cyclone continuous feeding device is started, so that the organic matter powder rotates by utilizing wind energy and forms a temperature field which can be driven to uniformly enter a primary high-temperature high-energy cracking area;
s3, primary cracking stage;
when the organic matter powder enters a primary high-temperature high-energy cracking area temperature field in a rotating state, 65-85% of the organic matter powder is subjected to suspension cracking under the action of flame released by a high-temperature plasma accelerator in a temperature field environment of 300-3000 ℃; simultaneously, pulling apart nitrogen bonds in 65% of air to form water-soluble nitrogen oxide with oxygen;
the flue gas containing nitrogen oxide generated after the primary cracking enters the next work area and is used for forming a high-concentration water-soluble fertilizer;
s4, secondary cracking stage;
after the organic matter powder is subjected to primary cracking, the inner core of the organic matter powder is not completely cracked, the organic matter powder enters a secondary medium-temperature aerobic spontaneous combustion cracking field through a smoke outlet and dust outlet of a temperature field of a primary high-temperature high-energy cracking area to be subjected to spontaneous combustion secondary cracking, and smoke containing nitrogen oxide generated after the secondary cracking also enters a next work area to be used for forming a high-concentration water-soluble fertilizer;
and (3) changing the organic matter powder subjected to secondary cracking into silicon-potassium powder, and storing and discharging the formed silicon-potassium powder.
2. The method of claim 1, wherein the furnace wall is made of refractory material and has a cylindrical shape of a cylinder; the diameter of the hearth wall is 100cm-5520cm, the thickness is 10cm-30cm, and the length is 10cm-1200 cm.
3. The operating method of an aerobic cracking apparatus for continuous feed according to claim 1, wherein an ash storage is installed below the continuous feed aerobic cracking furnace body; the ash storage device is communicated with the continuous feeding aerobic cracking furnace body; and an ash outlet is arranged on the ash storage device.
4. The operating method of an aerobic cracking apparatus for continuous feed according to claim 1, wherein a smoke outlet pipe is installed above the continuous feed aerobic cracking furnace body; the smoke outlet pipeline is communicated with the continuous feeding aerobic cracking furnace body; the smoke outlet is arranged on the smoke outlet pipeline.
5. Method of operating an aerobic cracking unit for continuous feed according to any of the claims 1 to 4, whereby the number of high temperature plasma accelerators ranges from 1 to 10.
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| CN104676605B (en) * | 2015-02-28 | 2017-05-24 | 中广核研究院有限公司 | Plasma furnace for comprehensively treating solid and liquid wastes |
| CN109351300B (en) * | 2018-11-14 | 2020-12-15 | 中国人民解放军空军工程大学 | Series plasma cracking flow reactor and operation method thereof |
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| CN110408437A (en) * | 2019-04-23 | 2019-11-05 | 浙江程润环保工程有限公司 | A kind of quick biomass gasification device of energy-saving, environment-friendly and high-efficiency and method |
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