CN109022006A - Powdered coke/semi-coke the production system and technique of coal particle size classified utilization - Google Patents
Powdered coke/semi-coke the production system and technique of coal particle size classified utilization Download PDFInfo
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- CN109022006A CN109022006A CN201810797383.8A CN201810797383A CN109022006A CN 109022006 A CN109022006 A CN 109022006A CN 201810797383 A CN201810797383 A CN 201810797383A CN 109022006 A CN109022006 A CN 109022006A
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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 powdered coke/semi-coke production systems and technique of coal particle size classified utilization, coal breaker, broken coal storehouse, coal pulverizer, thick coal dust classifier are sequentially connected, the thick discharge of thick coal dust classifier connects rough coal powder cabin, rough coal powder cabin outlet connection rough coal powder Weighing feeder import, the fine breeze outlet connection fine breeze collector of thick coal dust classifier, the fine breeze outlet connection duff powder cabin of fine breeze collector, duff powder cabin outlet connection fine breeze Weighing feeder import；Section is U-shaped constitutes by burning zone and preparation for preparation facilities, burning zone outlet is connect with preparation section import, burning zone import lower sides open up air intlet, and burning zone exit side wall opens up water and/or vapor spout, and preparation section import upper portion side wall opens up rough coal powder import；The fuel inlet of fine breeze Weighing feeder outlet connection burner, the rough coal powder import of rough coal powder Weighing feeder outlet connection preparation section, the import of preparation section outlet connection cyclone separator.
Description
Technical field
The present invention relates to coal chemical technology more particularly to powdered coke/semi-coke production systems of coal particle size classified utilization
System and technique.
Background technique
For powdered coke, semi-coke preparation process, present inventor is application No. is the patents of 201711039704.X
In provide a kind of powdery semi-coke preparation facilities and technique, however mainly with natural gas and be aided with semi-coke preparation process in the technique
The pyrolysis gas of middle generation passes through fuel of the purified coal gas as burning zone, and the technique not only needs coal as product original
Material, but also need natural gas as fuel feedstocks, it is more demanding for the number of species of raw material.Present inventor is applying
Number to provide a kind of hierarchical segmented formula coke breeze preparation system and technique in 201710671922.9 patent, only with a kind of original
Material may be implemented the supply for preparing burning zone fuel feedstocks to activated coke by coal particle size classification and make burnt section products material
Supply, it is lower for the number of species demand of raw material.Thus the application is quasi- is answered using the preparation system and technique of hierarchical segmented formula
For the preparation of powdered coke or semi-coke, to overcome in the patent application No. is 201711039704.X technique to raw material type number
Measure more demanding problem.
Summary of the invention
In order to solve the deficiencies in the prior art, an object of the present invention is to provide a kind of powder of coal particle size classified utilization
Shape coke/semi-coke production system, the fuel without natural gas as burning zone.
To achieve the goals above, the technical solution of the present invention is as follows:
A kind of powdered coke/semi-coke production system of coal particle size classified utilization, including fuel pulverizing plant, powdered coke/
Semi-coke preparation facilities, powdered coke/semi-coke collection device, the powdered coke/semi-coke collection device includes cyclone separator；
The fuel pulverizing plant includes coal breaker, broken coal storehouse, coal pulverizer, thick coal dust classifier, fine breeze collector, rough coal powder
Storehouse, rough coal powder Weighing feeder, duff powder cabin, fine breeze Weighing feeder, coal breaker, broken coal storehouse, coal pulverizer, the separation of rough coal powder
Device is sequentially connected, and the thick discharge of thick coal dust classifier connects rough coal powder cabin, the outlet connection rough coal powder weighing of rough coal powder cabin
The import of batcher, the fine breeze outlet connection fine breeze collector of thick coal dust classifier, the fine breeze of fine breeze collector go out
Mouth connection duff powder cabin, the import of the outlet connection fine breeze Weighing feeder of duff powder cabin；
Section is U-shaped constitutes by burning zone and preparation for the powdered coke/semi-coke preparation facilities, the inlet and outlet of burning zone
The top and bottom of burning zone are separately positioned on, the inlet and outlet for preparing section is separately positioned on the bottom and top of preparation section,
The outlet of burning zone is connect with the import of preparation section, and the import of burning zone is equipped with burner, and the lower sides of burning zone import are opened
If air intlet, the side wall in burning zone exit opens up water and/or vapor spout, and the import upper portion side wall for preparing section opens up slightly
Coal dust import；
The fuel inlet of the outlet connection burner of the fine breeze Weighing feeder, the rough coal powder Weighing feeder
The rough coal powder import of outlet connection preparation section, the import of preparation section outlet connection cyclone separator.
Firstly, since powdered coke/semi-coke is higher for the content requirement of ash content, thus application No. is
The fuel of natural gas and coal gas as burning zone in the patent of 201711039704.X, in order to reduce the ash in product
Point.It burns according to (thin) coal dust, then can generate a large amount of flying dust, influence the quality of product.And it is burning in the present invention
The side wall in section exit opens up water or vapor spout, can either carry out temperature adjustment by water or vapor, and can be to burning
The flying dust generated afterwards has good removal effect, to ensure that the quality of product.
Secondly, controlling fine breeze and rough coal using cut diameter in the patent application No. is 201711039704.X
The mass ratio of powder, and cut diameter can only be controlled by coal pulverizer and thick coal dust classifier, but directly using coal pulverizer and
Thick coal dust classifier passes through cut diameter, high to the equipment performance requirement of coal pulverizer and thick coal dust classifier, and is difficult to control
The mass ratio of fine breeze and rough coal powder processed, to influence system operation production powdered coke/semi-coke stability.The thus present invention
In order to provide system operation production powdered coke/semi-coke stability, rough coal powder cabin, rough coal powder Weighing feeder, thin is increased
Pulverized coal bin, fine breeze Weighing feeder are limited the mass ratio of fine breeze and rough coal powder by Weighing feeder, both reduce equipment
Performance requirement, and can guarantee the stable operation of production powdered coke/semi-coke.
The second object of the present invention is to provide a kind of powdered coke/semi-coke production technology of coal particle size classified utilization,
Above-mentioned production system is provided, feed coal enters broken coal storehouse after coal breaker be tentatively crushed, and the broken coal in broken coal storehouse enters
Coal dust is generated after coal pulverizer, coal dust rough coal powder after the separation of thick coal dust classifier is entered by the solid-phase outlet of thick coal dust classifier
Rough coal powder cabin, fine breeze enter fine breeze storehouse after the collection of fine breeze collector by the gaseous phase outlet of thick coal dust classifier, carefully
Fine breeze in duff powder cabin is delivered to burner and burnt in burning zone by coal dust Weighing feeder, rough coal powder weighing feed
Rough coal powder in rough coal powder cabin is delivered to preparation section entrance and mixes uplink with the hot fume that burning zone generates by machine, in preparation Duan Jing
3~10s time completes pyrolytic reaction, then separates through cyclone separator and obtain powdered coke/semi-coke, the matter of fine breeze and rough coal powder
Amount is than being 1/6~1/3, and total coal particle size range is 20~1000 μm, separator cut diameter (dp) range be 50~200 μ
m。
The invention has the benefit that
1. the achievable coal dust classified utilization of the present invention prepares powdered coke/semi-coke, rough coal is defined by Weighing feeder
The mass ratio of powder and fine breeze, had not only reduced the performance requirement of equipment, but also can guarantee the stable operation of production powdered coke/semi-coke.
2. being added to rough coal powder cabin, duff powder cabin in the present invention, if one of coal dust is insufficient, another coal dust can be used
It is substituted, to be further ensured that the stable operation of system and technique.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is the structural schematic diagram of present system；
1, run coal bin；2, coal breaker；3, broken coal storehouse；4, coal pulverizer；5, thick coal dust classifier；6, rough coal powder cabin；7, rough coal
Powder Weighing feeder；8, thick power transportation pipe；9, rough coal powder tedge；10, fine breeze down-comer；11, fine breeze collector；
12, duff powder cabin；13, fine breeze Weighing feeder；14, fine breeze conveyance conduit；15, turbulent burner；16, air port；
17, burning zone；18, water/vapor spout；19, ash bucket；20, slag bath；21, dragveyer；22, coal dust spout；23, section is prepared；
24, powdered coke/semi-coke separator；5, powdered coke/semi-coke cooler；26, powdered coke/semi-coke storehouse；27, powdered coke/
Semi-coke；28, it is pyrolyzed air burner；29, combustion-supporting wind snout；30, adiabatic combustion section；31, helix tube type water-cooling wall；32, superheater；
33, economizer；34, air preheater；35, cold air；36, bag filter；37, steam turbine；38, superheated steam.
Specific embodiment
It is noted that described further below be all exemplary, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
As background technique is introduced, exist in the prior art in the preparation process of powdered coke or semi-coke to raw material
The more demanding deficiency of number of species, in order to solve technical problem as above, present applicant proposes coal particle size classified utilizations
Powdered coke/semi-coke production system and technique.
A kind of exemplary embodiment of the application provides a kind of powdered coke/semi-coke of coal particle size classified utilization
Production system, including fuel pulverizing plant, powdered coke/semi-coke preparation facilities, powdered coke/semi-coke collection device, the powdery are burnt
Charcoal/semi-coke collection device includes cyclone separator；
The fuel pulverizing plant includes coal breaker, broken coal storehouse, coal pulverizer, thick coal dust classifier, fine breeze collector, rough coal powder
Storehouse, rough coal powder Weighing feeder, duff powder cabin, fine breeze Weighing feeder, coal breaker, broken coal storehouse, coal pulverizer, the separation of rough coal powder
Device is sequentially connected, and the thick discharge of thick coal dust classifier connects rough coal powder cabin, the outlet connection rough coal powder weighing of rough coal powder cabin
The import of batcher, the fine breeze outlet connection fine breeze collector of thick coal dust classifier, the fine breeze of fine breeze collector go out
Mouth connection duff powder cabin, the import of the outlet connection fine breeze Weighing feeder of duff powder cabin；
Section is U-shaped constitutes by burning zone and preparation for the powdered coke/semi-coke preparation facilities, the inlet and outlet of burning zone
The top and bottom of burning zone are separately positioned on, the inlet and outlet for preparing section is separately positioned on the bottom and top of preparation section,
The outlet of burning zone is connect with the import of preparation section, and the import of burning zone is equipped with burner, and the lower sides of burning zone import are opened
If air intlet, the side wall in burning zone exit opens up water and/or vapor spout, and the import upper portion side wall for preparing section opens up slightly
Coal dust import；
The fuel inlet of the outlet connection burner of the fine breeze Weighing feeder, the rough coal powder Weighing feeder
The rough coal powder import of outlet connection preparation section, the import of preparation section outlet connection cyclone separator.
Firstly, since powdered coke/semi-coke is higher for the content requirement of ash content, thus application No. is
The fuel of natural gas and coal gas as burning zone in the patent of 201711039704.X, in order to reduce the ash in product
Point.It burns according to (thin) coal dust, then can generate a large amount of flying dust, influence the quality of product.And it is burning in the application
The side wall in section exit opens up water or vapor spout, can either carry out temperature adjustment by water or vapor, and can be to burning
The flying dust generated afterwards has good removal effect, to ensure that the quality of product.
Secondly, controlling fine breeze and rough coal using cut diameter in the patent application No. is 201711039704.X
The mass ratio of powder, and cut diameter can only be controlled by coal pulverizer and thick coal dust classifier, but directly using coal pulverizer and
Thick coal dust classifier passes through cut diameter, high to the equipment performance requirement of coal pulverizer and thick coal dust classifier, and is difficult to control
The mass ratio of fine breeze and rough coal powder processed, to influence system operation production powdered coke/semi-coke stability.Thus the application
In order to provide system operation production powdered coke/semi-coke stability, rough coal powder cabin, rough coal powder Weighing feeder, thin is increased
Pulverized coal bin, fine breeze Weighing feeder are limited the mass ratio of fine breeze and rough coal powder by Weighing feeder, both reduce equipment
Performance requirement, and can guarantee the stable operation of production powdered coke/semi-coke.
Preferably, the fuel pulverizing plant includes rough coal powder tedge, fine breeze down-comer, the rough coal powder tedge into
Mouth is connected to the bottom of rough coal powder cabin, and the outlet of rough coal powder tedge is connected to the top of duff powder cabin, the fine breeze decline
The import of pipe is connected to the bottom of duff powder cabin, and the outlet of the fine breeze down-comer is connected to the top of rough coal powder cabin.If its
A kind of middle coal dust is insufficient, and another coal dust can be used and substituted, to be further ensured that the temperature operation of system and technique.
Preferably, burning zone and preparation section share an ash bucket, and the outlet of burning zone and the import of preparation section pass through ash bucket
Connection, hopper bottom are equipped with slag bath, are equipped with dragveyer in slag bath.
Preferably, the powdered coke/semi-coke collection device includes powdered coke/semi-coke cooler, powdered coke/semi-coke
Collecting bin, it is burnt that powdered coke/semi-coke that cyclone separator is isolated enters powdery after powdered coke/semi-coke cooler is cooling
Charcoal/semi-coke collecting bin.
It is further preferred that including that pyrolysis gas waste gas of incineration utilizes device, the pyrolysis gas waste gas of incineration utilizes device packet
Include incinerator, the incinerator bottom according to the flow direction that incinerator generates flue gas successively install helix tube type water-cooling wall, superheater,
Economizer, air preheater and bag filter.By the pyrolysis gas that cyclone separator separates, temperature is higher, into incinerator
It is mixed afterwards with combustion air, it being capable of full combustion.
Still more preferably, the air of the air intlet of the air outlet slit connection burner of air preheater and incinerator
Import.
Still more preferably, including steam turbine, the cooling water outlet of steam turbine are separately connected powdered coke/semi-coke cooling
The cooling water inlet of device and the cooling water inlet of economizer, powdered coke/semi-coke cooler cooling water outlet and economizer
Cooling water outlet connects the cooling water inlet of helix tube type water-cooling wall simultaneously, and the cooling water outlet of helix tube type water-cooling wall connected
The cooling water outlet of the cooling water inlet of hot device, superheater provides superheated steam for steam turbine.The helix tube type water-cooling wall changes
Hot wall, superheater, economizer, air preheater are existing commonly used equipment.
The another embodiment of the application provides a kind of powdered coke/semi-coke life of coal particle size classified utilization
Production. art provides above-mentioned production system, and feed coal enters broken coal storehouse after coal breaker be tentatively crushed, broken in broken coal storehouse
Coal generates coal dust after entering coal pulverizer, and coal dust rough coal powder after the separation of thick coal dust classifier is gone out by the solid phase of thick coal dust classifier
Mouth enters rough coal powder cabin, and fine breeze enters fine breeze after the collection of fine breeze collector by the gaseous phase outlet of thick coal dust classifier
Storehouse, the fine breeze in duff powder cabin is delivered to burner and burnt in burning zone by fine breeze Weighing feeder, after burning
Material cools down by water or vapor spout water spray or vapor and removes flying dust, and rough coal powder Weighing feeder will be in rough coal powder cabin
Rough coal powder be delivered to preparation section entrance with cooling removal flying dust material mix, then prepare section in carry out pyrolytic reaction,
It is separated again through cyclone separator and obtains powdered coke/semi-coke, the mass ratio of fine breeze and rough coal powder is 1/6~1/3, total coal dust
Particle size range is 20~500 μm, and separator cut diameter range is 50~200 μm.
Preferably, the oxygen volumetric concentration of the air capacity for controlling burning zone, the flue gas for generating burning zone burning is not higher than
2%.
Preferably, residence time of the rough coal powder in preparation section is 3~10s.
Preferably, preparing the temperature in section is 700~1100 DEG C.
Preferably, preparation section interior air-flow flow velocity is 3~6m/s.
In order to enable those skilled in the art can clearly understand the technical solution of the application, below with reference to tool
The technical solution of the application is described in detail in the embodiment of body.
Embodiment 1
The system of the present embodiment, as shown in Figure 1, include fuel pulverizing plant, powdered coke/semi-coke preparation facilities, powdered coke/
Semi-coke collection device, pyrolysis gas waste gas of incineration utilize device.
Specifically comprises the processes of: raw coal is broken through crusher 2 in run coal bin 1, into broken coal storehouse 3, enters coal pulverizer 4 later and makes
Powder, the coal particle size of preparation are distributed as 20~500 μm, and coal pulverizer 4 exports wind powder mixture and enters thick coal dust classifier 5, point
Cut partial size (dp) scope of design be 50~200 μm, the relatively rough coal powder (d separatedp~500 μm) enter rough coal powder cabin 6, rough coal
The weighed batcher 7 of powder and thick power transportation pipe 8, which are sent into, makes burnt section 23, and pumped (conveying) medium uses incinerator tail flue gas or nitrogen
Gas；The outlet lack of gas of thick coal dust classifier 5 enter cloth bag collector 11, (20 μm~d of the fine breeze of collectionp) enter duff powder cabin
12, outlet lack of gas are sent into bag filter 36 and carry out depth dedusting, the weighed batcher 13 of fine breeze and fine powder conveyance conduit 14
Burning zone 17 is sent by turbulent burner 15, pumped (conveying) medium is the hot-air preheated through incinerator air preheater；According to process requirements,
Pulverized coal preparation system need to control thick, fine breeze ratio, and to guarantee that system steady and continuous is run, the present embodiment should be controlled by taking lignite as an example
Slightly, fine breeze consumption mass ratio is 1:4, the i.e. fine breeze of 1 unit of burning zone completely burned, can be the rough coal of system 4 unit of burnt section
Powder completes the burnt reaction of system and provides institute's calorific requirement.
Coal dust is utilized through grain size grading, and fine breeze full combustion, fly ash granule partial size is thinner in flue gas after burning, after burning
Flue gas enters preparation section 23, mixes with rough coal powder and completes preparation process, and the flying dust that burning zone generates can be mixed in the gas-solid of preparation section
In mixture, therefore, the selection of powdered coke/semi-coke separator 24 cut diameter is equal with thick coal dust classifier 5, through separating
Afterwards, the relatively fine grain product that the thin flying dust and preparation section that burning zone generates generate enters the combustion of pyrolysis gas incinerator tissue with pyrolysis gas
It burns, burning combustion air comes from air preheater 34, and wind-warm syndrome is burnt in adiabatic combustion section 30 through adiabatic oxygenation at 300 DEG C or so, maintains combustion
Temperature is burnt at 1100 DEG C or so, meanwhile, the combustibles such as tar molecules and unsegregated thin coke/semi-coke particles in pyrolysis gas exist
At a high temperature of 1100 DEG C also can completely burned, then enter helix tube type water-cooling wall heat exchanging segment 31, later successively through superheater 32,
Economizer 33, air preheater 34 complete heat exchange, and the incineration flue gas that last smoke temperature is down to 180 DEG C or so is passed through bag filter 36
And subsequent flue gas purification device.Isolated solid product enters powdered coke/semi-coke cooler 25, and powdered coke/semi-coke is by 700
~1100 DEG C are cooled to 80 DEG C or so, then enter coke breeze collecting bin 26, and cooling water is warming up to 300 DEG C or so by 25 DEG C, then
Into helix tube type water-cooling wall 31.
It is connected between rough coal powder cabin 6 and duff powder cabin 12 by rough coal powder pipeline 9 and duff powder pipeline 10；Wherein, rough coal powder
From top to bottom, inside sets bucket chain to pipeline 9, and rough coal powder can be promoted to duff powder cabin 12 by bucket chain, duff powder pipeline 10 from lower and
On, fine breeze can flow into rough coal powder cabin 6 by self gravity, and the purpose being designed in this way is that deviation occurs in thick, fine breeze ratio
When, in order to maintain system stable operation, as emergency regulation measure, can make to realize that balance adjustment can be realized between thick, fine breeze
Slightly, the balance adjustment between fine breeze, to guarantee the system stable operation.
Cold air 35 divides two-way after the heating of air preheater 34, connects eddy flow burner 15 all the way as Secondary Air, separately
The combustion air that combustion-supporting wind snout 29 is used as pyrolysis gas burning is connect all the way.
Condensed moisture two-way is preheated through the preheating of economizer 33, another way through powdered coke/semi-coke cooler 25 all the way,
This, powdered coke/semi-coke cooler 25 serves as the use of part economizer, further absorbs waste heat in powdered coke/semi-coke, later
Two-way is mixed into helix tube type water-cooling wall 31, and superheater 32 is entered after heat absorption, and subsequent superheated steam 38 is passed through steam turbine 33 and does
Function, the low-quality steam after acting can be used for industrial production or household heating, most uses afterwards through condenser condensation cycle.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of powdered coke/semi-coke production system of coal particle size classified utilization, characterized in that including fuel pulverizing plant, powder
Shape coke/semi-coke preparation facilities, powdered coke/semi-coke collection device, the powdered coke/semi-coke collection device include whirlwind point
From device；
The fuel pulverizing plant include coal breaker, broken coal storehouse, coal pulverizer, thick coal dust classifier, fine breeze collector, rough coal powder cabin,
Rough coal powder Weighing feeder, duff powder cabin, fine breeze Weighing feeder, coal breaker, broken coal storehouse, coal pulverizer, thick coal dust classifier
Be sequentially connected, the thick discharge of thick coal dust classifier connects rough coal powder cabin, the outlet connection rough coal powder of rough coal powder cabin weigh to
The import of material machine, the fine breeze outlet connection fine breeze collector of thick coal dust classifier, the fine breeze outlet of fine breeze collector
Connect duff powder cabin, the import of the outlet connection fine breeze Weighing feeder of duff powder cabin；
Section is U-shaped constitutes by burning zone and preparation for the powdered coke/semi-coke preparation facilities, the inlet and outlet difference of burning zone
The top and bottom of burning zone are set, and the inlet and outlet for preparing section is separately positioned on the bottom and top of preparation section, burning
The outlet of section is connect with the import of preparation section, and the import of burning zone is equipped with burner, and the lower sides of burning zone import open up sky
Gas import, the side wall in burning zone exit open up water and/or vapor spout, and the import upper portion side wall for preparing section opens up rough coal powder
Import；
The fuel inlet of the outlet connection burner of the fine breeze Weighing feeder, the outlet of the rough coal powder Weighing feeder
The rough coal powder import of connection preparation section, the import of preparation section outlet connection cyclone separator.
2. production system as described in claim 1, characterized in that the fuel pulverizing plant includes rough coal powder tedge, fine breeze
Down-comer, the import of the rough coal powder tedge are connected to the bottom of rough coal powder cabin, and the outlet of rough coal powder tedge is connected to carefully
The top of pulverized coal bin, the import of the fine breeze down-comer are connected to the bottom of duff powder cabin, and the fine breeze down-comer goes out
Mouth is connected to the top of rough coal powder cabin.
3. production system as described in claim 1, characterized in that burning zone and preparation section share an ash bucket, burning zone
It exports and is connected to the import of preparation section by ash bucket, hopper bottom is equipped with slag bath, is equipped with dragveyer in slag bath.
4. production system as described in claim 1, characterized in that the powdered coke/semi-coke collection device includes powdery coke
Charcoal/semi-coke cooler, powdered coke/semi-coke collecting bin, powdered coke/semi-coke that cyclone separator is isolated are burnt by powdery
Enter powdered coke/semi-coke collecting bin after charcoal/semi-coke cooler is cooling.
5. production system as claimed in claim 4, characterized in that utilize device, the pyrolysis including pyrolysis gas waste gas of incineration
Gas waste gas of incineration includes incinerator using device, and spiral shell is successively installed according to the flow direction that incinerator generates flue gas in the incinerator bottom
Coil formula water-cooling wall, superheater, economizer, air preheater and bag filter.By cyclone separator separate pyrolysis gas,
Temperature is higher, into incinerator after mixed with combustion air, being capable of full combustion.
6. production system as claimed in claim 7, characterized in that the air of the air outlet slit connection burner of air preheater
The air intlet of import and incinerator.
7. production system as claimed in claim 5, characterized in that including steam turbine, the cooling water outlet of steam turbine connects respectively
Powdered coke/cooling water inlet of semi-coke cooler and the cooling water inlet of economizer are connect, powdered coke/semi-coke cooler is cold
But the cooling water outlet of water out and economizer connects the cooling water inlet of helix tube type water-cooling wall, helix tube type water-cooling wall simultaneously
Cooling water outlet connection superheater cooling water inlet, the cooling water outlet of superheater provides superheated steam for steam turbine.
8. a kind of powdered coke/semi-coke production technology of coal particle size classified utilization, characterized in that provide claim 1~7
Any production system, feed coal by coal breaker carry out it is tentatively broken after enter broken coal storehouse, the broken coal in broken coal storehouse into
Enter and generate coal dust after coal pulverizer, coal dust after the separation of thick coal dust classifier rough coal powder by thick coal dust classifier solid-phase outlet into
Entering rough coal powder cabin, fine breeze enters fine breeze storehouse after the collection of fine breeze collector by the gaseous phase outlet of thick coal dust classifier,
Fine breeze in duff powder cabin is delivered to burner and burnt in burning zone by fine breeze Weighing feeder, the material after burning
Cooling removal flying dust is removed by water and/or vapor spout water spray and/or vapor, rough coal powder Weighing feeder is by rough coal powder cabin
In rough coal powder be delivered to preparation section entrance and mix with the material of cooling removal flying dust, then be pyrolyzed in preparing section instead
It answers, obtains powdered coke/semi-coke separating through cyclone separator, the mass ratio of fine breeze and rough coal powder is 1/6~1/3.
9. production technology as claimed in claim 8, characterized in that the air capacity for controlling burning zone generates burning zone burning
Flue gas oxygen volumetric concentration be not higher than 2%.
10. production technology as claimed in claim 8, characterized in that residence time of the rough coal powder in preparation section is 3~10s,
Preparing the temperature in section is 700~1100 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810797383.8A CN109022006B (en) | 2018-07-19 | 2018-07-19 | Production system and process of powdery coke/semi coke for grading utilization of coal powder particle size |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810797383.8A CN109022006B (en) | 2018-07-19 | 2018-07-19 | Production system and process of powdery coke/semi coke for grading utilization of coal powder particle size |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115303821A (en) * | 2022-07-05 | 2022-11-08 | 宁夏金海东泰洁能有限公司 | Semi coke end forming treatment system |
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| CN115584285A (en) * | 2022-12-05 | 2023-01-10 | 浙江百能科技有限公司 | Cyclone gasification furnace and pyrolysis gasification system and process based on cyclone gasification furnace |
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| CN109022006B (en) | 2022-10-18 |
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