CN101734647A - Raw petroleum coke mixed calcination technology and equipment system thereof - Google Patents
Raw petroleum coke mixed calcination technology and equipment system thereof Download PDFInfo
- Publication number
- CN101734647A CN101734647A CN200810305427A CN200810305427A CN101734647A CN 101734647 A CN101734647 A CN 101734647A CN 200810305427 A CN200810305427 A CN 200810305427A CN 200810305427 A CN200810305427 A CN 200810305427A CN 101734647 A CN101734647 A CN 101734647A
- Authority
- CN
- China
- Prior art keywords
- coke
- petroleum coke
- enters
- rotary kiln
- flue gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The invention discloses novel petroleum coke calcination technology taken as one of production processes of carbon products and an equipment system thereof. The process flow thereof comprises the steps of: dividing raw petroleum coke which comes from a petroleum coke storehouse into two parts, namely crude coke and fine coke through a vibrating screen, wherein the crude petroleum coke enters a rotary kiln calcination system, the fine petroleum coke enters a pot furnace system for calcination, and petroleum coke obtained by calcining in the two sets of systems jointly enters a calcined coke conveying system; and making flue gas produced by the two sets of systems enter an ash settling chamber, incinerating volatile matter and partial carbon dust in the flue gas, then making the flue gas enter a waste heat utilization system, and then discharging the flue gas into the atmosphere after the waste heat is utilized. The equipment system thereof is that: the vibrating screen is arranged on the top of a coarse grain silo and a fine grain silo; a rotary kiln is connected with a rotary cooler; the rotary cooler and a pot furnace are connected with calcined coke conveying equipment respectively; the rotary kiln and the pot furnace are connected with the ash settling chamber respectively; and the ash settling chamber is connected with a waste heat boiler, a dust remover, a chimney and a boiler induced-draft fan. The petroleum coke calcination scale which is suitable for the invention is fifty thousand tons/year and above.
Description
Technical field
The present invention relates to the raw petroleum coke calcining process and the device systems of one of a kind of carbon product production process.
Background technology
Present domestic electrolytic aluminum consumes prebaked anode and reaches 7,000,000 tons/year, need consume 6,500,000 tons/year of raw petroleum cokes approximately; About 1,000,000 tons/year of carbon product such as iron and steel and chemical industry needs to consume ten thousand tons/year of raw petroleum coke 130-150.Above-mentioned raw petroleum coke calcination process is basic identical, requires to be heated to 1200-1300 ℃, makes it remove moisture content, fugitive constituent, improves true density and physical strength, reduces resistivity.The calcining main equipment has rotary kiln, pot furnace, and the maximum user's aluminium of raw petroleum coke incinerating mainly adopts calcined by rotary kiln with the calcining of level refinery coke.But there is powder content height in the raw petroleum coke of domestic production, its specific surface area of powder meticulous in calcination process in rotary kiln is big, the ratio of oxidized scaling loss increases when contacting with air, simultaneously because meticulous powder has worsened heat transfer condition, in rotary kiln, " burn not saturating " and be forced to reduce the throughput of rotary kiln; Also the powder of existence＜1mm is brought in the kiln exit gas and too much by scaling loss, and the oxidization burning loss of the domestic calcined by rotary kiln that too much causes owing to powder at present reaches 8-10% even more; Though the smoke processing system at rotary kiln has adopted the UTILIZATION OF VESIDUAL HEAT IN facility, because the price of high-quality petroleum coke is higher than common coal for power generation, the part of waste heat utilization that is exchanged for by scaling loss high-quality carbon feedstock is uneconomic.And can-type calcine furnace adopts indirect heating, and refinery coke does not directly contact scorching hot flue gas, and the oxidization burning loss of calcination process is than the low 4-5% of rotary kiln, but owing to heat-processed is long, throughput is low, and floor space is big, causes operating environment poor owing to input and output material point.To the calcining petroleum coke production capacity requirement that more and more enlarges at present, above-mentioned two kinds of calcining petroleum coke equipment all have its limitation of using.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of new calcining process of petroleum cokes by using and device systems are provided, the production capacity of calcined by rotary kiln is improved, quality is improved, the operational condition of pot furnace and UTILIZATION OF VESIDUAL HEAT IN condition improve, to overcome deficiencies such as the production capacity that prior art exists is low, loss is big.
The calcining process of petroleum cokes by using flow process is as follows:
The raw petroleum coke that comes from the refinery coke storehouse is divided into thick Jiao and thin burnt two portions by vibratory screening apparatus with it, RAW PETROLEUM COKE (RPC) enters the calcined by rotary kiln system, the microlith oil coke then enters the pot furnace system and calcines, and the refinery coke after the calcining of 2 cover systems enters jointly forges the burnt delivery system in back; The flue gas that 2 cover systems produce enters heavy grey chamber, enters atmosphere with entering after fugitive constituent in the flue gas and the burning of part charcoal dirt again after bootstrap system utilizes waste heat, and flue gas in case of emergency can directly enter exhaust system without waste heat boiler and enter atmosphere.
According in the raw material＜that 1mm powder Jiao's content difference and the annual capacity of refinery coke are carried out the production capacity of rotary kiln and pot furnace is supporting, calcining production line with 12t/h is an example, the green coke feeding coal that needs is 15-15.6t/h, by domestic typical raw petroleum coke size-grade distribution, amount less than 1mm is that 15-20% folding green coke amount is 2.25-3.12t/h, the burnt pot furnace that adopts of this part particulate is calcined, and can produce after-smithing petroleum coke is 1.8-2.5t/h, requires to select 1 of 24-28 jar pot furnace according to production capacity.
The calcining process of petroleum cokes by using device systems is to constitute like this: it is made up of vibratory screening apparatus, coarse grain feed bin, heavy grey chamber, rotary kiln, rotary type cooling machine, calcined coke handling equipment, waste heat boiler, fly-ash separator, chimney, boiler induced-draft fan, particulate feed bin, pot furnace.Vibratory screening apparatus places coarse grain feed bin and particulate feed bin top, the raw petroleum coke of sending here from raw material storage through the single-deck vibrating screen screening after, Coarse Aggregate on the sieve enters the coarse grain feed bin, minus mesh enters the particulate feed bin, and the volume of 2 feed bins is formed definite to reach the calcining consumption that can store approximately 24 hours according to the pellet in the raw material green coke.The raw petroleum coke that is stored in the coarse grain feed bin feeds rotary kiln by the dosing system of rotary kiln, because the fine granules of general＜1mm screens out, material heat transfer condition in rotary kiln improves, forge in the time of can making identical production capacity that the burnt quality in back improves or during equal in quality production capacity improve about 10%, reduced the powder that enters heavy grey chamber in addition, can make the refinery coke scaling loss of rotary system reduce 2-3%; The after-smithing petroleum coke that reaches specification of quality enters rotary type cooling machine and is cooled to enter after the suitable temperature of carrying and forges the burnt delivery system in back; The flue gas of discharging from rotary kiln enters heavy grey chamber.Be stored in bird's eye gravel oil coke in the particulate feed bin by feeding the top feed bin of pot furnace to truck, forge back material delivery system by entering after pot furnace calcining and the cooling; The flue gas of pot furnace enters heavy grey chamber equally; Because rotary system adopts the high negative pressure operation, the flue gas of pot furnace imports this system can make pot furnace top feed bin all be in high negative, and the top of avoiding pot furnace often the to occur phenomenon of smoldering is improved operating environment; Simultaneously, solved the little not good utilisation of separate unit pot furnace exhaust gas volumn in the past because the less relatively pot furnace flue gas of exhaust gas volumn imports the smoke processing system of rotary kiln, and during focus utilization because distance is far away the temperature low problem of fast utilising efficiency that descends.Entering the rotary kiln of heavy grey chamber and the fugitive constituent in the pot furnace flue gas and part charcoal dirt burns therein; flue gas enters waste heat boiler and utilizes waste heat after burning; enter fly-ash separator, blower fan then; enter atmosphere by chimney again; in emergency circumstances can directly import chimney, with equipment such as protection waste heat boilers with sinking the flue gas of grey chamber outlet.
The present invention compared with prior art, the present invention is divided into Coarse Aggregate and fine granules by vibratory screening apparatus with raw material, Coarse Aggregate adopts calcined by rotary kiln and the calcining of fine granules employing pot furnace, performance calcined by rotary kiln and pot furnace calcining advantage separately, the production line that two kinds of equipment is used for simultaneously 50,000 tons/year and above calcined petroleum coke, the production capacity of calcined by rotary kiln is improved, quality is improved, the operational condition of pot furnace and UTILIZATION OF VESIDUAL HEAT IN condition improve.
The present invention is applicable to the production of aluminium with carbon product and other metallurgy or chemical industry carbon product, and the incinerating temperature is 1200-1300 ℃, and the true density of calcining back refinery coke is about 2.06g/cm3.The calcining petroleum coke scale that is suitable for be 50,000 tons/year and more than.
Description of drawings
Fig. 1 is the calcining process of petroleum cokes by using schema;
Fig. 2 is for being calcining process of petroleum cokes by using device systems synoptic diagram;
Fig. 3 is the A Abandon sectional view among Fig. 2;
Fig. 4 is the B Fen sectional view among Fig. 2.
Embodiment
Embodiments of the invention: the calcining process of petroleum cokes by using flow process is as follows:
The raw petroleum coke that comes from the refinery coke storehouse is divided into thick Jiao and thin burnt two portions by vibratory screening apparatus with it, RAW PETROLEUM COKE (RPC) enters the calcined by rotary kiln system, the microlith oil coke then enters the pot furnace system and calcines, and the refinery coke after the calcining of 2 cover systems enters jointly forges the burnt delivery system in back; The flue gas that 2 cover systems produce enters heavy grey chamber, enters atmosphere with entering after fugitive constituent in the flue gas and the burning of part charcoal dirt again after bootstrap system utilizes waste heat, and flue gas in case of emergency can directly enter exhaust system without waste heat boiler and enter atmosphere.
The calcining process of petroleum cokes by using device systems is made up of vibratory screening apparatus 1, coarse grain feed bin 2, heavy grey chamber 3, rotary kiln 4, rotary type cooling machine 5, calcined coke handling equipment 6, waste heat boiler 7, fly-ash separator 8, chimney 9, boiler induced-draft fan 10, particulate feed bin 11, pot furnace 12.Vibratory screening apparatus 1 places coarse grain feed bin 2 and particulate feed bin 11 tops, rotary kiln 4 is connected with rotary type cooling machine 5, rotary type cooling machine 5, pot furnace 12 are connected with calcined coke handling equipment 6 respectively, rotary kiln 4, pot furnace 12 are connected with heavy grey chamber 3 respectively, and heavy grey chamber 3 is connected with waste heat boiler 7, fly-ash separator 8, chimney 9, boiler induced-draft fan 10.
Claims (2)
1. raw petroleum coke mixed calcining technology, it is characterized in that: it comprises following flow process: the raw petroleum coke that comes from the refinery coke storehouse is divided into thick Jiao and thin burnt two portions by vibratory screening apparatus with it, RAW PETROLEUM COKE (RPC) enters the calcined by rotary kiln system, the microlith oil coke then enters the pot furnace system and calcines, and the refinery coke after the calcining of 2 cover systems enters jointly forges the burnt delivery system in back; The flue gas that 2 cover systems produce enters heavy grey chamber, enters atmosphere with entering after fugitive constituent in the flue gas and the burning of part charcoal dirt again after bootstrap system utilizes waste heat.
2. raw petroleum coke mixed calcining technology equipment used as claimed in claim 1 system, it is characterized in that: vibratory screening apparatus (1) places coarse grain feed bin (2) and particulate feed bin (11) top, rotary kiln (4) is connected with rotary type cooling machine (5), rotary type cooling machine (5), pot furnace (12) are connected with calcined coke handling equipment (6) respectively, rotary kiln (4), pot furnace (12) are connected with heavy grey chamber (3) respectively, and heavy grey chamber (3) is connected with waste heat boiler (7), fly-ash separator (8), chimney (9), boiler induced-draft fan (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810305427A CN101734647A (en) | 2008-11-07 | 2008-11-07 | Raw petroleum coke mixed calcination technology and equipment system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810305427A CN101734647A (en) | 2008-11-07 | 2008-11-07 | Raw petroleum coke mixed calcination technology and equipment system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101734647A true CN101734647A (en) | 2010-06-16 |
Family
ID=42458764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810305427A Pending CN101734647A (en) | 2008-11-07 | 2008-11-07 | Raw petroleum coke mixed calcination technology and equipment system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101734647A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101792135A (en) * | 2010-03-31 | 2010-08-04 | 潍坊联兴炭素有限公司 | Process for calcining petroleum coke |
| CN102476795A (en) * | 2010-11-30 | 2012-05-30 | 沈阳铝镁设计研究院有限公司 | Method for producing filler in calcination workshop and system thereof |
| CN103874745A (en) * | 2011-02-23 | 2014-06-18 | 雷恩Cii碳有限责任公司 | Pelletization and calcination of green coke |
| CN104815737A (en) * | 2015-04-15 | 2015-08-05 | 江苏苏亚迪炭材有限公司 | Calcined coke dust reduction processing system |
| CN114506840A (en) * | 2021-11-04 | 2022-05-17 | 贵阳铝镁设计研究院有限公司 | Fine petroleum coke powder forming process |
-
2008
- 2008-11-07 CN CN200810305427A patent/CN101734647A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101792135A (en) * | 2010-03-31 | 2010-08-04 | 潍坊联兴炭素有限公司 | Process for calcining petroleum coke |
| CN102476795A (en) * | 2010-11-30 | 2012-05-30 | 沈阳铝镁设计研究院有限公司 | Method for producing filler in calcination workshop and system thereof |
| CN103874745A (en) * | 2011-02-23 | 2014-06-18 | 雷恩Cii碳有限责任公司 | Pelletization and calcination of green coke |
| EP2678121A4 (en) * | 2011-02-23 | 2015-09-16 | Rain Cii Carbon Llc | Pelletization and calcination of green coke |
| CN104815737A (en) * | 2015-04-15 | 2015-08-05 | 江苏苏亚迪炭材有限公司 | Calcined coke dust reduction processing system |
| CN104815737B (en) * | 2015-04-15 | 2017-03-29 | 江苏苏亚迪炭材有限公司 | Calcined coke depositing dust system of processing |
| CN114506840A (en) * | 2021-11-04 | 2022-05-17 | 贵阳铝镁设计研究院有限公司 | Fine petroleum coke powder forming process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102010728B (en) | Method for preparing semicoke, empyreumatic oil and coal gas by pyrolyzing coal | |
| US9938196B2 (en) | Method and a system for producing a lightweight ceramic aggregate, particularly from coal ash | |
| CN201873648U (en) | Drying, pyrolysis and gasification system for high-moisture-content traditional Chinese medicine residue | |
| CN101776370B (en) | Method and device for drying and quality enhancement of lignite | |
| CN101734647A (en) | Raw petroleum coke mixed calcination technology and equipment system thereof | |
| JP5417925B2 (en) | How to use biomass | |
| CN102190449B (en) | Light burning system and method of magnesite | |
| CN110639318B (en) | Environment-friendly and energy-saving coal calcining system and method thereof | |
| CN101434461A (en) | Apparatus and method for processing wastes | |
| JP2011093980A (en) | Process for producing briquette coal | |
| CN111302673A (en) | High-temperature magnesium oxide calcining device and calcining method thereof | |
| CN106675602B (en) | A kind of charcoal production system and method | |
| CN105948050B (en) | A kind of production method and system of calcium carbide | |
| RU2550874C2 (en) | Coal charge preparation for coking | |
| CN209797792U (en) | Device for calcining lime by using cement kiln tail | |
| CN204356237U (en) | With the quality coal in cement kiln systems of grate-cooler disposing sludge | |
| JP2015052159A (en) | Production method of biomass charcoal | |
| CN203807396U (en) | Low-temperature pulverized coal retorting furnace | |
| CN201648243U (en) | Light burning system for magnesite | |
| CN209922906U (en) | System for production carbide | |
| CN106833713A (en) | Oil shale or oil-sand downlink cycle bed millisecond pyrolysis device for refining | |
| CN102822317A (en) | Process for production of solid fuel for use in sintering, solid fuel for use in sintering, and process for manufacturing sintered ore using same | |
| CN205856557U (en) | A kind of for carbonaceous material circulation calciner | |
| CN100453939C (en) | Tech. for baking dry quartz sand by rotating drum | |
| Khadatkar et al. | Automated Briquetting Machine for Bio Coal Manufacturing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100616 |