CN106829961A - Prepare the Poly-generation method and system of calcium carbide and carbon black - Google Patents
Prepare the Poly-generation method and system of calcium carbide and carbon black Download PDFInfo
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- CN106829961A CN106829961A CN201611141001.3A CN201611141001A CN106829961A CN 106829961 A CN106829961 A CN 106829961A CN 201611141001 A CN201611141001 A CN 201611141001A CN 106829961 A CN106829961 A CN 106829961A
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- calcium
- superfines
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- carbon black
- carbide
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/48—Carbon black
- C09C1/54—Acetylene black; thermal black ; Preparation thereof
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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
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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
- C10B53/04—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of powdered coal
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Abstract
The invention discloses the Poly-generation method and system for preparing calcium carbide and carbon black, wherein, method includes：Carbon-based material and calcium-based materials are carried out into fine grinding respectively, carbon-based superfines and calcium base superfines is obtained；Carbon-based superfines is carried out into fast pyrolysis processes, pyrolysis material and pyrolysis oil gas is obtained；Pyrolysis material and calcium base superfines are carried out into mixed-forming treatment, material pelletizing is obtained；Material pelletizing is carried out into calcium carbide reaction, carbide liquid is obtained；Carbide liquid is exchanged heat with pyrolysis oil gas, the high-temperature flue gas containing carbon black are obtained；And high-temperature flue gas are carried out into dust removal process, obtain synthesis gas and carbon black.It is carbon black that the method can utilize the tar conversion that the sensible heat of the carbide liquid for preparing produces coal pyrolysis, saving prepare carbon black needed for heat, carbon black can remove the quick lime impurity in carbide liquid simultaneously, so as to improve the quality of the calcium carbide for preparing, in addition, it is carbon black by by tar conversion, can also avoids processing the pollution problem that tar is brought.
Description
Technical field
The present invention relates to derived energy chemical field, specifically, the Poly-generation method the present invention relates to prepare calcium carbide and carbon black
And system.
Background technology
Calcium carbide is calcium carbide (CaC2), the mother of organic synthesis is described as before the middle of last century.It is currently used primarily in production
The series of products such as chlorovinyl, vinyl acetate base and acrylic, PVC (polyvinyl chloride) productions of China more than 70% come from electricity
Stone acetylene.Economic development of the calcium carbide to China has a very important role, and yield in the recent decade constantly increases, 2013
Yield surpasses 22,000,000 tons.
The unburnt product of the raw material such as carbon black system aromatic petroleum or coal tar, as important packing strengthening agent and excellent
Good coloring or toner, are now widely used for the industry such as rubber and plastic processing, printing ink paint, chemical fibre, electronics, metallurgy.
Coal can obtain the products such as solid carbon-based material and coal tar by completely cutting off air heating, and solid carbon-based material is just
It is well the raw material needed for calcium carbide production, coal tar is raw material needed for production of carbon black, in existing production technology, coal pyrolysis, calcium carbide life
Produce and the production of carbon black is independently to carry out, cause showing for high-temp solid carbon-based material, coal tar and pyrolysis gas after coal pyrolysis
Heat is all wasted, meanwhile, waste water is had in quenching processing procedure or waste gas is produced, during coal tar and pyrolysis gas separation
Also a large amount of chilled waters can be consumed, these water are final to be discharged in the form of phenol-containing wastewater
Thus, it is existing to prepare calcium carbide and the method for carbon black still has much room for improvement.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.Therefore, of the invention
One purpose is the Poly-generation method and system that proposition prepares calcium carbide and carbon black.Can utilize what is prepared using the method
The tar conversion that the sensible heat of carbide liquid produces coal pyrolysis is carbon black, the heat needed for preparing carbon black has been saved, while carbon black
The quick lime impurity in carbide liquid can be removed, such that it is able to improve the quality of the calcium carbide for preparing, additionally, by by tar
Carbon black is converted into, can also avoid processing the pollution problem that tar is brought.
In the first aspect of the present invention, the present invention proposes a kind of Poly-generation method for preparing calcium carbide and carbon black.According to this
Inventive embodiment, the method includes：Carbon-based material and calcium-based materials are carried out into fine grinding respectively, to obtain carbon-based superfines
With calcium base superfines；The carbon-based superfines is carried out into fast pyrolysis processes in fast pyrogenation stove, to obtain pyrogen
Material and pyrolysis oil gas；The pyrolysis material is carried out into mixed-forming treatment with the calcium base superfines, to obtain material ball
Group；The material pelletizing heat is delivered to carries out calcium carbide reaction in furnace of calcium carbide, to obtain carbide liquid；By the carbide liquid with it is described
Pyrolysis oil gas exchanged heat, so as to using the carbide liquid sensible heat by it is described pyrolysis oil gas in coke tar cracking into carbon black, obtain
To the high-temperature flue gas containing carbon black；And the high-temperature flue gas are carried out into dust removal process, to obtain synthesis gas and carbon black.
Thus, embodiments in accordance with the present invention, the method carries out fine grinding by by carbon-based material and calcium-based materials, obtains carbon
Base superfines and calcium base superfines, fast pyrolysis processes are carried out by carbon-based superfines in fast pyrogenation stove, so as to
To the pyrolysis oil gas containing tar and the pyrolysis material with carbon as main component；And then enter pyrolysis material with calcium base superfines
The treatment of row mixed-forming, obtains material pelletizing；Material pelletizing heat is delivered to carries out calcium carbide reaction in furnace of calcium carbide, obtain high temperature calcium carbide
Liquid；Further, the pyrolysis oil gas containing tar that the pyrolysis of carbon-based superfines is obtained is exchanged heat with high temperature carbide liquid, profit
The coke tar cracking being pyrolyzed in oil gas is carbon black by obvious with carbide liquid, the high-temperature flue gas containing carbon black is obtained, so as to need not
Under conditions of external heat source, tar to the conversion of carbon black is realized, while the quick lime that carbon black can also be removed in carbide liquid is miscellaneous
Matter, improves the quality of the calcium carbide for preparing；After heat exchange, high-temperature flue gas are carried out into dust removal process, so as to obtain synthesis gas and
Carbon black products；Additionally, being carbon black by by tar conversion, can also avoid processing the pollution problem that tar is brought.
In addition, the Poly-generation method for preparing calcium carbide and carbon black according to the above embodiment of the present invention can also have it is following attached
Plus technical characteristic：
In some embodiments of the invention, the average grain diameter of the carbon-based superfines is no more than 0.1mm.Thus,
The specific surface area and contact area of carbon-based superfines can be dramatically increased, so as to significantly reduce the energy consumption of follow-up calcium carbide reaction.
In some embodiments of the invention, the average grain diameter of the calcium base superfines is no more than 0.074mm.By
This, can dramatically increase the specific surface area and contact area of calcium base superfines, so as to further reduce follow-up calcium carbide reaction
Energy consumption.
In some embodiments of the invention, the temperature of the fast pyrolysis processes is 540~610 degrees Celsius, and the time is 6
~10 seconds.Thus, it is possible to significantly improve the yield of the tar that the fast pyrolysis processes are obtained.
In some embodiments of the invention, the average grain diameter of the material pelletizing is 5~35mm.Thus, it is possible to significantly
Improve the efficiency of follow-up calcium carbide reaction.
In some embodiments of the invention, it is described to prepare calcium carbide and the Poly-generation method of carbon black is further included：Entering
Before the row dust removal process, the high-temperature flue gas are carried out into energy recovery.
In the second aspect of the present invention, the present invention propose it is a kind of implement above-described embodiment prepare many of calcium carbide and carbon black
The system of co-production.Embodiments in accordance with the present invention, the system includes：Carbon-based reducing mechanism, the carbon-based reducing mechanism tool
There are carbon-based material entrance and carbon-based superfines to export；There are calcium original washing powder crushing device, the calcium original washing powder crushing device calcium-based materials to enter
Mouth and the outlet of calcium base superfines；Fast pyrogenation stove, the fast pyrogenation stove has carbon-based superfines entrance, pyrolysis material to go out
Mouth and pyrolysis oil gas vent, the carbon-based superfines entrance are connected with the carbon-based superfines outlet；Mixed-forming device,
The mixed-forming device has pyrolysis material inlet, calcium base superfines entrance and the outlet of material pelletizing, the pyrolysis material
Entrance is connected with the pyrolysis material outlet, and the calcium base superfines entrance is connected with calcium base superfines outlet；Electricity
There is stone stove, the furnace of calcium carbide material pelletizing entrance, carbide liquid to export, and the material pelletizing entrance is exported with the material pelletizing
It is connected；Calcium carbide collection, the carbide liquid collector has carbide liquid chamber, heat exchange structure, and the heat exchange structure has heat
Solution oil gas entrance and high-temperature flue gas outlet, the entrance of the carbide liquid chamber are connected with carbide liquid outlet, the pyrolysis oil
Gas entrance is connected with the pyrolysis oil gas vent；And deduster, the deduster has high-temperature flue gas entry, syngas outlet
Exported with carbon black, the high-temperature flue gas entry is connected with the high-temperature flue gas outlet.
Thus, embodiments in accordance with the present invention, the system using carbon-based reducing mechanism and calcium original washing powder crushing device by that will be divided
Other carbon-based material and calcium-based materials carry out fine grinding, obtain carbon-based superfines and calcium base superfines, and carbon-based superfines is existed
Fast pyrolysis processes are carried out in fast pyrogenation stove, to obtain the pyrolysis oil gas containing tar and the pyrolysis with carbon as main component
Material；Pyrolysis material and calcium base superfines heat are delivered into mixed-forming device carries out mixed-forming treatment, obtains material pelletizing；
And then material pelletizing heat is delivered to calcium carbide reaction is carried out in furnace of calcium carbide, the high temperature carbide liquid for obtaining enters calcium carbide collection；Enter
One step ground, calcium carbide collection, and and high-temperature electric are entered by the pyrolysis oil pneumatic transmission containing tar that the pyrolysis of carbon-based superfines is obtained
Stone liquid is exchanged heat, and the coke tar cracking being pyrolyzed in oil gas is carbon black by obvious using carbide liquid, obtains the high temperature containing carbon black
Flue gas, so that under conditions of without external heat source, tar to the conversion of carbon black is realized, while carbon black can also remove calcium carbide
Quick lime impurity in liquid, improves the quality of the calcium carbide for preparing；After heat exchange, high-temperature flue gas feeding deduster is removed
Dirt treatment, to obtain synthesis gas and carbon black products；Additionally, being carbon black by by tar conversion, can also avoid processing tar
The pollution problem for being brought.
In addition, the polygenerations systeme for preparing calcium carbide and carbon black according to the above embodiment of the present invention can also have it is following attached
Plus technical characteristic：
In some embodiments of the invention, it is described to prepare calcium carbide and the polygenerations systeme of carbon black is further included：Heat exchange
Device, the heat exchanger is arranged between the calcium carbide collection and the deduster, is suitable to entering the height before deduster
Warm flue gas carries out energy recovery.
Additional aspect of the invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by practice of the invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 is the Poly-generation method flow schematic diagram for preparing calcium carbide and carbon black according to an embodiment of the invention；
Fig. 2 is the Poly-generation method flow schematic diagram for preparing calcium carbide and carbon black according to further embodiment of the present invention；
Fig. 3 is the polygenerations systeme schematic diagram for preparing calcium carbide and carbon black according to an embodiment of the invention；
Fig. 4 is the polygenerations systeme structural representation for preparing calcium carbide and carbon black according to further embodiment of the present invention；
Fig. 5 is the polygenerations systeme structural representation for preparing calcium carbide and carbon black according to another embodiment of the invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, it is intended to for explaining the present invention, and be not considered as limiting the invention.
In the description of the invention, it is to be understood that term " connected " should be interpreted broadly, for example, it may be fixed
Connect, or be detachably connected, or integrally；Can mechanically connect, or electrically connect；It can be direct phase
Connect, it is also possible to be indirectly connected to by intermediary, can be that the connection or two interactions of element of two element internals are closed
System, unless otherwise clearly restriction.For the ordinary skill in the art, above-mentioned art can as the case may be understood
Language concrete meaning in the present invention.
In the first aspect of the present invention, the present invention proposes a kind of Poly-generation method for preparing calcium carbide and carbon black.According to this
Inventive embodiment, the method includes：Carbon-based material and calcium-based materials are carried out into fine grinding respectively, to obtain carbon-based superfines
With calcium base superfines；Carbon-based superfines is carried out into fast pyrolysis processes in fast pyrogenation stove, so as to obtain pyrolysis material and
Pyrolysis oil gas；Pyrolysis material and calcium base superfines are carried out into mixed-forming treatment, to obtain material pelletizing；By material pelletizing
Heat is delivered to carries out calcium carbide reaction in furnace of calcium carbide, to obtain carbide liquid；Carbide liquid is exchanged heat with pyrolysis oil gas, to utilize
The coke tar cracking that the sensible heat of carbide liquid will be pyrolyzed in oil gas obtains the high-temperature flue gas containing carbon black into carbon black；And by high temperature cigarette
Gas carries out dust removal process, to obtain synthesis gas and carbon black.
The Poly-generation method for preparing calcium carbide and carbon black according to embodiments of the present invention is described in detail below, with reference to figure
1~2, the method includes：
S100：Fine grinding
In the step, carbon-based material and calcium-based materials are carried out into fine grinding respectively, to obtain carbon-based superfines and calcium base
Superfines.Specifically, carbon-based material can be jet coal, and calcium-based materials can be quick lime.
Embodiments in accordance with the present invention, the particle diameter of carbon-based superfines is not particularly restricted, and those skilled in the art can
To be selected according to actual needs, according to a particular embodiment of the invention, the particle diameter of carbon-based superfines can be not higher than
0.1mm.Inventor had found, the particle diameter is crushed to by by carbon-based material, can significantly improve the carbon-based superfines that obtains
Specific surface area and contact area, make carbon-based superfines be sufficiently mixed uniformly with calcium base superfines, it is possible thereby to significantly reduce
Temperature needed for follow-up calcium carbide reaction, allows carbon in mixed material and calcium to react at a lower temperature generation calcium carbide.
Embodiments in accordance with the present invention, the particle diameter of calcium base superfines is not particularly restricted, and those skilled in the art can
To be selected according to actual needs, according to a particular embodiment of the invention, the particle diameter of calcium base superfines can be not higher than
0.074mm.Inventor's discovery, the particle diameter is crushed to by by calcium-based materials, can significantly improve the calcium base superfines for obtaining
Specific surface area and contact area, calcium base superfines is sufficiently mixed uniformly with carbon-based superfines, it is possible thereby to significantly drop
Temperature needed for low follow-up calcium carbide reaction, allows the carbon in mixed material to be reacted at a lower temperature with calcium and generates electricity
Stone.
S200：Fast pyrolysis processes
In the step, carbon-based superfines is carried out into fast pyrolysis processes in fast pyrogenation stove, to obtain being pyrolyzed material
With pyrolysis oil gas.Specifically, carbon-based superfines can be supplied to the top of fast pyrogenation stove, using carbon-based superfines
Self gravitation makes it fall freely through body of heater, obtains being pyrolyzed material and the pyrolysis oil gas containing tar.
Embodiments in accordance with the present invention, the condition of fast pyrolysis processes is not particularly restricted, and those skilled in the art can
To be selected according to actual needs, according to a particular embodiment of the invention, the temperature of fast pyrolysis processes can for 540~
610 degrees Celsius, the time can be 6~10 seconds, and inventor passes through many experiments it was unexpectedly observed that carrying out under these conditions quick
Pyrolysis processing, can cause that tar yield is maximized.
S300：Mixed-forming treatment
In the step, pyrolysis material and calcium base superfines are carried out into mixed-forming treatment, to obtain material pelletizing.Tool
Body ground, mixed-forming is carried out after being pyrolyzed material and calcium base superfines precompressed using preload screw in roller briquetting machine
Treatment, to obtain material pelletizing.
Embodiments in accordance with the present invention, the particle diameter of material pelletizing is not particularly restricted, and those skilled in the art can be with root
Selected according to being actually needed, according to a particular embodiment of the invention, the average grain diameter of material pelletizing can be 5~35mm.Hair
A person of good sense passes through many experiments it was unexpectedly observed that the too small gas permeability that can influence material of the particle diameter of material pelletizing, particle diameter is excessive then
The heat transfer of storeroom is influenceed, causes growth, the efficiency reduction in reaction time.According to a preferred embodiment of the invention, material pelletizing
Particle diameter in 15mm, the gas permeability and heat and mass transfer performance of material are optimal.
S400：Calcium carbide reacts
In the step, material pelletizing heat is delivered to carries out calcium carbide reaction in furnace of calcium carbide, to obtain carbide liquid.Specifically,
Above-mentioned calcium carbide reaction can be carried out under 2200 degrees Celsius, it is possible thereby to significantly improve the efficiency of calcium carbide reaction, and then is prepared into
Carbide liquid of the temperature for arriving more than 2000 degrees Celsius flows out from furnace of calcium carbide bottom, into calcium carbide collection.
S500：Heat exchange
In the step, carbide liquid is exchanged heat with pyrolysis oil gas, to be pyrolyzed in oil gas using the sensible heat of carbide liquid
Coke tar cracking into carbon black, obtain the high-temperature flue gas containing carbon black.
Embodiments in accordance with the present invention, are exchanged heat, it is possible to use pyrolysis oil gas pair by by carbide liquid with pyrolysis oil gas
Carbide liquid is cooled down, while being carbon black by the coke tar cracking being pyrolyzed in oil gas using the obvious of carbide liquid, obtains containing carbon black
High-temperature flue gas, so as under conditions of without external heat source, tar to the conversion of carbon black is realized, while carbon black can also be removed
The quick lime impurity gone in carbide liquid, improves the quality of the calcium carbide for preparing.
Additionally, embodiments in accordance with the present invention, it is necessary to realize pyrolysis oil using water or ammoniacal liquor Quench in traditional handicraft
The separation of tar in gas, can not only consume a large amount of fresh waters, can also produce a large amount of phenol-containing wastewaters, and the method for the present invention is by profit
The coke tar cracking being just pyrolyzed in oil gas with the sensible heat of carbide liquid is carbon black, it is to avoid the money that tar is caused is processed in traditional handicraft
Source wastes and environmental pollution.
S550：Energy recovery
In the step, before dust removal process, high-temperature flue gas are carried out into energy recovery.Specifically, oil gas and calcium carbide are pyrolyzed
After liquid heat exchange, temperature high-temperature flue gas higher are converted into, by the way that the high-temperature flue gas are carried out with energy recovery, and then will can reclaimed
Heat energy recycled.
S600：Dedusting
In the step, high-temperature flue gas are carried out into dust removal process, to obtain synthesis gas and carbon black.
Thus, embodiments in accordance with the present invention, the method carries out fine grinding by by carbon-based material and calcium-based materials, obtains carbon
Base superfines and calcium base superfines, fast pyrolysis processes are carried out by carbon-based superfines in fast pyrogenation stove, so as to
To the pyrolysis oil gas containing tar and the pyrolysis material with carbon as main component；And then enter pyrolysis material with calcium base superfines
The treatment of row mixed-forming, obtains material pelletizing；Material pelletizing heat is delivered to carries out calcium carbide reaction in furnace of calcium carbide, obtain high temperature calcium carbide
Liquid；Further, the pyrolysis oil gas containing tar that the pyrolysis of carbon-based superfines is obtained is exchanged heat with high temperature carbide liquid, profit
The coke tar cracking being pyrolyzed in oil gas is carbon black by obvious with carbide liquid, the high-temperature flue gas containing carbon black is obtained, so as to need not
Under conditions of external heat source, tar to the conversion of carbon black is realized, while the quick lime that carbon black can also be removed in carbide liquid is miscellaneous
Matter, improves the quality of the calcium carbide for preparing；After heat exchange, high-temperature flue gas are carried out into energy recovery and dust removal process successively, with
Just synthesis gas and carbon black products are obtained；Additionally, being carbon black by by tar conversion, can also avoid processing the dirt that tar is brought
Dye problem.
In the second aspect of the present invention, the present invention propose it is a kind of implement above-described embodiment prepare many of calcium carbide and carbon black
The system of co-production.Embodiments in accordance with the present invention, with reference to Fig. 3-4, the system includes：Carbon-based reducing mechanism 100, calcium original washing powder
Crushing device 200, fast pyrogenation stove 300, mixed-forming device 400, furnace of calcium carbide 500, calcium carbide collection 600 and deduster
700；Wherein, carbon-based reducing mechanism 100 has carbon-based material entrance 101 and carbon-based superfines outlet 102；Calcium original washing powder crushing device
200 have calcium-based materials entrance 201 and calcium base superfines outlet 202；Fast pyrogenation stove 300 has carbon-based superfines entrance
301st, pyrolysis material outlet 302 and pyrolysis oil gas vent 303, carbon-based superfines entrance 301 and carbon-based superfines outlet 102
It is connected；Mixed-forming device 400 has pyrolysis material inlet 401, calcium base superfines entrance 402 and material pelletizing outlet 403,
Pyrolysis material inlet 401 is connected with pyrolysis material outlet 302, and calcium base superfines entrance 402 exports 202 with calcium base superfines
It is connected；Furnace of calcium carbide 500 has material pelletizing entrance 501, carbide liquid outlet 502, and material pelletizing entrance 501 is exported with material pelletizing
403 are connected；Calcium carbide collection 600 has carbide liquid chamber 610, heat exchange structure 620, and heat exchange structure 620 has pyrolysis oil gas
Entrance 601 and high-temperature flue gas outlet 602, the entrance 603 of carbide liquid chamber 610 are connected with carbide liquid outlet 502, and pyrolysis oil gas enters
Mouth 601 is connected with pyrolysis oil gas vent 303；There is deduster 700 high-temperature flue gas entry 701, syngas outlet 702 and carbon black to go out
Mouth 703, high-temperature flue gas entry 701 is connected with high-temperature flue gas outlet 602.
Retouched in detail below with reference to Fig. 3-4 pairs of polygenerations systeme for preparing calcium carbide and carbon black according to embodiments of the present invention
State：
There is embodiments in accordance with the present invention, carbon-based reducing mechanism 100 carbon-based material entrance 101 and carbon-based superfines to go out
Mouth 102, carbon-based reducing mechanism 100 is suitable to for carbon-based material to carry out fine grinding, to obtain carbon-based superfines.Specifically, it is carbon-based
Material can be jet coal.
Embodiments in accordance with the present invention, the particle diameter of carbon-based superfines is not particularly restricted, and those skilled in the art can
To be selected according to actual needs, according to a particular embodiment of the invention, the particle diameter of carbon-based superfines can be not higher than
0.1mm.Inventor had found, the particle diameter is crushed to by by carbon-based material, can significantly improve the carbon-based superfines that obtains
Specific surface area and contact area, make carbon-based superfines be sufficiently mixed uniformly with calcium base superfines, it is possible thereby to significantly reduce
Temperature needed for follow-up calcium carbide reaction, allows carbon in mixed material and calcium to react at a lower temperature generation calcium carbide.
Embodiments in accordance with the present invention, the particle diameter of calcium base superfines is not particularly restricted, and those skilled in the art can
To be selected according to actual needs, according to a particular embodiment of the invention, the particle diameter of calcium base superfines can be not higher than
0.074mm.Inventor's discovery, the particle diameter is crushed to by by calcium-based materials, can significantly improve the calcium base superfines for obtaining
Specific surface area and contact area, calcium base superfines is sufficiently mixed uniformly with carbon-based superfines, it is possible thereby to significantly drop
Temperature needed for low follow-up calcium carbide reaction, allows the carbon in mixed material to be reacted at a lower temperature with calcium and generates electricity
Stone.
There is embodiments in accordance with the present invention, calcium original washing powder crushing device 200 calcium-based materials entrance 201 and calcium base superfines to go out
Mouth 202, calcium original washing powder crushing device 200 is suitable to for calcium-based materials to carry out fine grinding, to obtain calcium base superfines.Specifically, calcium base
Material can be quick lime.
Embodiments in accordance with the present invention, the particle diameter of calcium base superfines is not particularly restricted, and those skilled in the art can
To be selected according to actual needs, according to a particular embodiment of the invention, the particle diameter of calcium base superfines can be not higher than
0.074mm.Inventor's discovery, the particle diameter is crushed to by by calcium-based materials, can significantly improve the calcium base superfines for obtaining
Specific surface area and contact area, calcium base superfines is sufficiently mixed uniformly with carbon-based superfines, it is possible thereby to significantly drop
Temperature needed for low follow-up calcium carbide reaction, allows the carbon in mixed material to be reacted at a lower temperature with calcium and generates electricity
Stone.
Embodiments in accordance with the present invention, fast pyrogenation stove 300 has carbon-based superfines entrance 301, pyrolysis material outlet
302 are connected with pyrolysis oil gas vent 303, carbon-based superfines entrance 301 with carbon-based superfines outlet 102, fast pyrogenation stove
300 are suitable to for carbon-based superfines to carry out fast pyrolysis processes, to obtain pyrolysis material and pyrolysis oil gas.Specifically, can be with
Carbon-based superfines is supplied to the top of fast pyrogenation stove 300, under making its freedom using the self gravitation of carbon-based superfines
Fall by body of heater, obtain being pyrolyzed material and the pyrolysis oil gas containing tar.
Embodiments in accordance with the present invention, the condition of fast pyrolysis processes is not particularly restricted, and those skilled in the art can
To be selected according to actual needs, according to a particular embodiment of the invention, the temperature of fast pyrolysis processes can for 540~
610 degrees Celsius, the time can be 6~10 seconds, and inventor passes through many experiments it was unexpectedly observed that carrying out under these conditions quick
Pyrolysis processing, can cause that tar yield is maximized.
There is embodiments in accordance with the present invention, mixed-forming device 400 pyrolysis material inlet 401, calcium base superfines to enter
Mouth 402 and material pelletizing outlet 403, pyrolysis material inlet 401 are connected with pyrolysis material outlet 302, calcium base superfines entrance
402 are connected with calcium base superfines outlet 202, and mixed-forming device 400 is suitable to carry out pyrolysis material with calcium base superfines
Mixed-forming treatment, to obtain material pelletizing.Specifically, material and calcium base superfines can will be pyrolyzed using preload screw
Mixed-forming treatment is carried out after precompressed in roller briquetting machine, to obtain material pelletizing.
Embodiments in accordance with the present invention, the particle diameter of material pelletizing is not particularly restricted, and those skilled in the art can be with root
Selected according to being actually needed, according to a particular embodiment of the invention, the average grain diameter of material pelletizing can be 5~35mm.Hair
A person of good sense passes through many experiments it was unexpectedly observed that the too small gas permeability that can influence material of the particle diameter of material pelletizing, particle diameter is excessive then
The heat transfer of storeroom is influenceed, causes growth, the efficiency reduction in reaction time.According to a preferred embodiment of the invention, material pelletizing
Particle diameter in 15mm, the gas permeability and heat and mass transfer performance of material are optimal.
Embodiments in accordance with the present invention, furnace of calcium carbide 500 has material pelletizing entrance 501, carbide liquid outlet 502, material ball
Group's entrance 501 is connected with material pelletizing outlet 403, and furnace of calcium carbide 500 is suitable to deliver to material pelletizing heat carries out calcium carbide in furnace of calcium carbide
Reaction, to obtain carbide liquid.Specifically, above-mentioned calcium carbide reaction can be carried out under 2200 degrees Celsius, it is possible thereby to significantly carry
The efficiency of calcium carbide high reaction, and then carbide liquid of the temperature for preparing more than 2000 degrees Celsius enter from the outflow of furnace of calcium carbide bottom
Enter calcium carbide collection.
Embodiments in accordance with the present invention, calcium carbide collection 600 has carbide liquid chamber 610, heat exchange structure 620, heat exchange
Structure 620 has pyrolysis oil gas entrance 601 and high-temperature flue gas outlet 602, and entrance 603 and the carbide liquid of carbide liquid chamber 610 go out
Mouth 502 is connected, and pyrolysis oil gas entrance 601 is connected with pyrolysis oil gas vent 303, and calcium carbide collection 600 is suitable to enter carbide liquid
Row is collected, and carbide liquid is exchanged heat with pyrolysis oil gas using heat exchange structure 620, to be pyrolyzed using the sensible heat of carbide liquid
Coke tar cracking in oil gas obtains the high-temperature flue gas containing carbon black into carbon black.
Embodiments in accordance with the present invention, are exchanged heat, it is possible to use pyrolysis oil gas pair by by carbide liquid with pyrolysis oil gas
Carbide liquid is cooled down, while being carbon black by the coke tar cracking being pyrolyzed in oil gas using the obvious of carbide liquid, obtains containing carbon black
High-temperature flue gas, so as under conditions of without external heat source, tar to the conversion of carbon black is realized, while carbon black can also be removed
The quick lime impurity gone in carbide liquid, improves the quality of the calcium carbide for preparing.
Additionally, embodiments in accordance with the present invention, it is necessary to realize pyrolysis oil using water or ammoniacal liquor Quench in traditional handicraft
The separation of tar in gas, can not only consume a large amount of fresh waters, can also produce a large amount of phenol-containing wastewaters, and system of the invention is by profit
The coke tar cracking being just pyrolyzed in oil gas with the sensible heat of carbide liquid is carbon black, it is to avoid the money that tar is caused is processed in traditional handicraft
Source wastes and environmental pollution.
There is embodiments in accordance with the present invention, deduster 700 high-temperature flue gas entry 701, syngas outlet 702 and carbon black to go out
Mouth 703, high-temperature flue gas entry 701 is connected with high-temperature flue gas outlet 602, and deduster 700 is suitable to carry out high-temperature flue gas at dedusting
Reason, to obtain synthesis gas and carbon black.
It is according to the above embodiment of the present invention to prepare calcium carbide and the polygenerations systeme of carbon black is further included with reference to Fig. 4：Change
Hot device 800, heat exchanger 800 is arranged between calcium carbide collection 600 and deduster 700, is suitable to before entering deduster
High-temperature flue gas carry out energy recovery, and then can be recycled the heat energy of recovery.
Thus, embodiments in accordance with the present invention, the system using carbon-based reducing mechanism and calcium original washing powder crushing device by that will be divided
Other carbon-based material and calcium-based materials carry out fine grinding, obtain carbon-based superfines and calcium base superfines, and carbon-based superfines is existed
Fast pyrolysis processes are carried out in fast pyrogenation stove, to obtain the pyrolysis oil gas containing tar and the pyrolysis with carbon as main component
Material；Pyrolysis material and calcium base superfines heat are delivered into mixed-forming device carries out mixed-forming treatment, obtains material pelletizing；
And then material pelletizing heat is delivered to calcium carbide reaction is carried out in furnace of calcium carbide, the high temperature carbide liquid for obtaining enters calcium carbide collection；Enter
One step ground, calcium carbide collection, and and high-temperature electric are entered by the pyrolysis oil pneumatic transmission containing tar that the pyrolysis of carbon-based superfines is obtained
Stone liquid is exchanged heat, and the coke tar cracking being pyrolyzed in oil gas is carbon black by obvious using carbide liquid, obtains the high temperature containing carbon black
Flue gas, so that under conditions of without external heat source, tar to the conversion of carbon black is realized, while carbon black can also remove calcium carbide
Quick lime impurity in liquid, improves the quality of the calcium carbide for preparing；After heat exchange, high-temperature flue gas feeding heat exchanger is carried out into heat
After reclaiming, being re-fed into deduster carries out dust removal process, to obtain synthesis gas and carbon black products；Additionally, turning by by tar
Carbon black is turned to, can also avoid processing the pollution problem that tar is brought.
Below with reference to specific embodiment, present invention is described, it is necessary to explanation, these embodiments are only description
Property, and the present invention is limited never in any form.
Embodiment
Calcium carbide and carbon black are prepared with reference to Fig. 5：
Granularity is carried out by fine grinding dried process using airflow milling respectively in the jet coal and quick lime of below 5mm, respectively
Obtain the calcium base superfines of carbon-based superfines of the particle diameter less than 0.1mm and particle diameter less than 0.074mm；Wherein, jet coal work
Industry analysis is as shown in table 1, and CaO content is 92wt% in quick lime, and then jet coal powder is sent to by feed arrangement
Fast pyrogenation stove, controls 600 DEG C of pyrolysis temperature, 6 seconds time, obtains high-temp solid semi-coke heat and is fed into batch mixing shaped device,
With mix from calcium base superfines after carry out mixed-forming treatment, obtain the pelletizing of 15 × 5 × 10mm of particle diameter, directly heat be sent into
Entering furnace of calcium carbide carries out calcium carbide reaction, high temperature carbide liquid is obtained after 15 minutes and is flowed out from furnace of calcium carbide bottom discharging opening, into closed electricity
Stone collection, has multilayer high temperature resistant plate to increase carbide liquid surface area in collector, while the heat produced in fast pyrogenation stove
Solution oil gas enters calcium carbide collection, using the sensible heat of carbide liquid, generates the coke tar cracking in pyrolysis oil gas at 1500 DEG C
Carbon black products, which part carbon black products further react generation calcium carbide with quick lime excessive in carbide liquid, so as to reduce
Quick lime content in calcium carbide, improves calcium carbide quality, and most of carbon black is carried over calcium carbide collection with high-temperature flue gas, enters
Heat exchanger is by its institute's band Exposure degree, then the separation of carbon black and gas is realized by dust arrester, obtains carbon black products.Calcium carbide is passed through
Determine gas forming amount and reach 320L/kg.
The long flame proximate analysis of coal (wt%) of table 1
| Moisture (Mad) | Ash content (Aad) | Volatile matter (Vad) | Fixed carbon (Cad) |
| 5.07 | 5.80 | 29.30 | 59.83 |
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office
Combined in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
Art personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or example
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (8)
1. a kind of Poly-generation method for preparing calcium carbide and carbon black, it is characterised in that including：
Carbon-based material and calcium-based materials are carried out into fine grinding respectively, to obtain carbon-based superfines and calcium base superfines；
The carbon-based superfines is carried out into fast pyrolysis processes in fast pyrogenation stove, to obtain being pyrolyzed material and pyrolysis oil
Gas；
The pyrolysis material is carried out into mixed-forming treatment with the calcium base superfines, to obtain material pelletizing；
The material pelletizing heat is delivered to carries out calcium carbide reaction in furnace of calcium carbide, to obtain carbide liquid；
The carbide liquid is exchanged heat with the pyrolysis oil gas, so as to using the sensible heat of the carbide liquid by the pyrolysis oil gas
In coke tar cracking into carbon black, obtain the high-temperature flue gas containing carbon black；And
The high-temperature flue gas are carried out into dust removal process, to obtain synthesis gas and carbon black.
2. the Poly-generation method of calcium carbide and carbon black is prepared according to claim 1, it is characterised in that the carbon-based superfines
Average grain diameter be no more than 0.1mm.
3. the Poly-generation method of calcium carbide and carbon black is prepared according to claim 1, it is characterised in that the calcium base superfines
Average grain diameter be no more than 0.074mm.
4. the Poly-generation method of calcium carbide and carbon black is prepared according to claim 1, it is characterised in that the fast pyrolysis processes
Temperature be 540~610 degrees Celsius, the time be 6~10 seconds.
5. prepare the Poly-generation method of calcium carbide and carbon black according to claim 1, it is characterised in that the material pelletizing it is flat
Equal particle diameter is 5~35mm.
6. the Poly-generation method of calcium carbide and carbon black is prepared according to claim 1, it is characterised in that further included：
Before the dust removal process is carried out, the high-temperature flue gas are carried out into energy recovery.
7. a kind of system that the Poly-generation method of calcium carbide and carbon black is prepared described in implementation any one of claim 1~6, its feature exists
In, including：
There is carbon-based reducing mechanism, the carbon-based reducing mechanism carbon-based material entrance and carbon-based superfines to export；
There is calcium original washing powder crushing device, the calcium original washing powder crushing device calcium-based materials entrance and calcium base superfines to export；
Fast pyrogenation stove, the fast pyrogenation stove has carbon-based superfines entrance, pyrolysis material outlet and pyrolysis oil gas vent,
The carbon-based superfines entrance is connected with the carbon-based superfines outlet；
Mixed-forming device, the mixed-forming device has pyrolysis material inlet, calcium base superfines entrance and material pelletizing
Outlet, the pyrolysis material inlet is connected with the pyrolysis material outlet, and the calcium base superfines entrance is super with the calcium base
Fine powder outlet is connected；
Furnace of calcium carbide, the furnace of calcium carbide has material pelletizing entrance, carbide liquid outlet, the material pelletizing entrance and the material ball
Group's outlet is connected；
Calcium carbide collection, the carbide liquid collector has carbide liquid chamber, heat exchange structure, and the heat exchange structure has pyrolysis
Oil gas entrance and high-temperature flue gas outlet, the entrance of the carbide liquid chamber are connected with carbide liquid outlet, the pyrolysis oil gas
Entrance is connected with the pyrolysis oil gas vent；And
There is deduster, the deduster high-temperature flue gas entry, syngas outlet and carbon black to export, the high-temperature flue gas entry with
The high-temperature flue gas outlet is connected.
8. system according to claim 7, it is characterised in that further include：Heat exchanger, the heat exchanger is arranged on institute
State between calcium carbide collection and the deduster, be suitable to carry out energy recovery to the high-temperature flue gas before entering deduster.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708455A (en) * | 2013-12-25 | 2014-04-09 | 北京神雾环境能源科技集团股份有限公司 | Method for preparing calcium carbide |
| US20140334996A1 (en) * | 2013-05-10 | 2014-11-13 | Lp Amina Llc | Venturi reactor and method for producing usable by products using venturi reactor |
| CN205580217U (en) * | 2015-12-31 | 2016-09-14 | 北京天蓝华兴能源科技有限公司 | Mobile recovery system of liquid carbide sensible heat of coming out of stove |
| CN206395837U (en) * | 2016-12-12 | 2017-08-11 | 神雾环保技术股份有限公司 | Prepare the polygenerations systeme of calcium carbide and carbon black |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140334996A1 (en) * | 2013-05-10 | 2014-11-13 | Lp Amina Llc | Venturi reactor and method for producing usable by products using venturi reactor |
| CN103708455A (en) * | 2013-12-25 | 2014-04-09 | 北京神雾环境能源科技集团股份有限公司 | Method for preparing calcium carbide |
| CN205580217U (en) * | 2015-12-31 | 2016-09-14 | 北京天蓝华兴能源科技有限公司 | Mobile recovery system of liquid carbide sensible heat of coming out of stove |
| CN206395837U (en) * | 2016-12-12 | 2017-08-11 | 神雾环保技术股份有限公司 | Prepare the polygenerations systeme of calcium carbide and carbon black |
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