CN101462714A - Rotary kiln for calcining refinery coke - Google Patents
Rotary kiln for calcining refinery coke Download PDFInfo
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- CN101462714A CN101462714A CNA2007102032632A CN200710203263A CN101462714A CN 101462714 A CN101462714 A CN 101462714A CN A2007102032632 A CNA2007102032632 A CN A2007102032632A CN 200710203263 A CN200710203263 A CN 200710203263A CN 101462714 A CN101462714 A CN 101462714A
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- rotary kiln
- calcining
- refinery coke
- coke according
- adhesive tape
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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Abstract
The invention discloses a petroleum coke calcining rotary kiln, which comprises a rotary kiln(9); an insert plate valve(1) is arranged below a calcining front chamber; an adhesive tape constant feeder(2) is arranged below the insert plate valve, and an adhesive tape conveyer(3) is arranged behind the adhesive tape constant feeder (2) and connected with the rotary kiln(9) by an oblique cutting feed tipping tube of an electric insert plate valve(6); the tail part of the rotary kiln(9) is connected with a dust deposition chamber(8), and the head part of the rotary kiln(9) is connected with a cooling machine(16) and provided with a burner nozzle(13) and a burner nozzle hanger(14); the petroleum coke calcining rotary kiln is also provided with a one-time combustion fan(10) matched with the burner nozzle; and a dust-containing waste gas processing system(15) is arranged beside the cooling machine(16). The petroleum coke calcining rotary kiln has the advantages of improving the unit volume capacity, greatly enhancing comprehensive utilization of waste heat and adaptability of other calcining materials such as needle coke, anthracite and the like, reducing burning loss of charcoal, saving raw materials and energy, improving automatization level and reducing labor intensity of a worker.
Description
Technical field
The present invention relates to a kind of rotary kiln, the burnt calcination rotary kiln of particularly a kind of aluminium anode production PetroChina Company Limited..
Background technology
Along with the continuous development of aluminium with carbon anode industry and other carbon industries, single Production Line scale constantly enlarges, output also need be brought in constant renewal in, improves and be improved to original production technique and production unit, as one of the important procedure in the plain technology of charcoal calcining, its employed main equipment rotary kiln also should adapt to new processing requirement.As an important ring---the calcining that carbon industry is produced, the production technique employing rotary kiln of the overwhelming majority is as main equipment.At present, though the main flow calciner rotary kiln that domestic each carbon industry adopts in production operation because the long term experience accumulation, on continuous operating time, have greatly improved, but its agent technology level such as unit volume production capacity, adaptability of other calcining raw materials such as needle coke and hard coal etc. etc. is not greatly improved; The existing ubiquitous problem of rotary kiln is: operation rate is low, and production capacity is little, carbonaceous scaling loss height, and casting yield is low, thermo-efficiency is low, the calcined coke physical and chemical index is relatively poor and automatization level is low etc.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of rotary kiln for calcining refinery coke is provided, can improve the unit volume production capacity, the adaptability of other calcining raw materials such as needle coke and hard coal etc. is greatly improved, reduce the carbonaceous scaling loss, save material and the energy, raising automatization level, reduce labor strength; Improve and forge the burnt quality in back.Can be applicable to refinery coke simultaneously and concentrate calcining factory.
The present invention takes following technical scheme: it comprises rotary kiln 9, forge push-pull valve 1 is arranged under the preceding storehouse, it below the push-pull valve adhesive tape constant feeder 2, it is rubber conveyer 3 thereafter, rubber conveyer 3 connects rotary kiln 9 through the oblique cutting feed elephant trunk 21 with electronic push-pull valve 6, rotary kiln 9 afterbodys connect heavy grey chamber 8, rotary kiln 9 heads connect cooler 16, rotary kiln 9 heads are provided with burner 13 and burner suspension bracket 14, with the supporting burner blower 10 that is provided with a time of burner, the cooler 16 other dust-laden exhaust gas treatment systems 15 that dispose.
Rotary kiln 9 is 1:0.9 from afterbody to head reducing ratio for reducing designs
The middle part of rotary kiln 9 is provided with secondary air system 22, and it comprises speed control by frequency variation blower fan, airduct and tuyere.
The diameter of rotary kiln 9 is Φ 3.0m, and length is 60m.
Rubber conveyer 3 is provided with electromagnetism deironing system 4,7.
Rotary kiln 9 heads are provided with cooling blower 11, and are linked to each other by electronic discharge elephant trunk 12 with cooler 16 opening for feeds.
Rotary kiln 9 afterbodys are provided with excessive section 19, connect chapelet 20 through push-pull valve 23, and chapelet 20 connects transfer roller 3.
Burner suspension bracket 14 tops are provided with manual monorail trolley 17.
Cooler 16 discharge gates below is provided with adhesive tape weigher 18, and adhesive tape weigher 18 connects dust-laden exhaust gas treatment system 15.
In cooler 16, be provided with direct water-cooled tube, the indirect cooling water pipe arranged in its outer setting.
Compared with prior art, unit volume production capacity increase of the present invention, operation factor height, easily be automated control, reduce labor strength, improved the adaptability of raw material and comprehensive utilization waste heat etc.The present invention not only diameter is big, and length is long, the output height, and (existing rotary kiln diameter is Φ 1.6m, Φ 1.8m, Φ 2.2m, Φ 2.6m etc., and length is 30m, 36m, 45m, 50m etc., and output is 1.8t/h, 3t/h, 6t/h, 9t/h etc.And rotary kiln diameter of the present invention is Φ 3.0m, length is 60m, output is 15t/h), and in equipment design, absorbed the experience of aluminum oxide, cement industry rotary kiln, characteristics in conjunction with the carbon element kiln, at the kiln body adjustable secondary air is set, has created favourable condition, can make volatile matter fully burning in kiln for the fugitive constituent that makes full use of in the raw material, prolong calcining zone, strengthen the calcining effect.The rotary kiln afterbody is provided with excessive section of fine particle material that recovery taken out of by negative pressure, and the fine particle material excessively turns back to the calcining flow process after section sedimentation at this, can improve casting yield like this.Rotary kiln body afterbody is designed to variable-diameter structure in addition, She Ji purpose is that speed reduces after interior this section of the high temperature dust flue gas process variable-diameter structure of rotary kiln like this, help burnt dirt sedimentation, material is because in this reducer bed thickness attenuation, strengthen drying and the preheating that helps material with the high-temperature flue gas contact surface, material moves along the calcining direction in kiln more smoothly simultaneously; Be connected automatization when having realized maintenance with electronic discharge elephant trunk between rotary kiln head discharge gate and the cooler opening for feed.The main motor of rotary kiln and secondary air motor adopt variable frequency control, and the rotating speed of kiln and the air quantity of secondary air are adjusted, and effectively calcining process are controlled.If raw material moisture content is low, production control must be got well, and can realize not having the oil calcining without fuel during ordinary production.In calcination process,, a large amount of fuel have been saved without external heat source.Cooling cylinder adopts in the tube forging the directly outer water spray indirectly of the water spray cooling cylinder cooling bonded type of cooling of back material, make the oxidational losses of expecting after forging in cooling cylinder reduce to minimum, and coke temperature is dropped sharply to below 70 ℃ in very short time, reduce the carbonaceous scaling loss greatly, the carbonaceous scaling loss of retard petroleum coke in whole calcination process dropped to about 8%.This rotary kiln is tried one's best calcining zone near the kiln hood direction on technology, help improving calcining temperature like this and prolong calcining zone, extend simultaneously drying belt and preheating zone, the heat-up rate of easier like this control material in kiln, calcining zone adopts the high grade refractory cast to form so that bear the thermal load of top temperature in the whole calcination process, calcining zone plays decisive role to forging the burnt quality in back in whole calcination process, material acutely discharges volatile matter at this band, volatile matter provides combustion air to burn by near the secondary air system that is located at the calcining zone, the heat that provides calcining zone to need, because calcining zone is advanced near the kiln hood direction, and the whole length inconvenience of kiln, so the corresponding increasing of the length from the kiln tail to calcining zone (being the length of drying belt and preheating zone), so just guaranteed material from the kiln tail to the heat-up rate the calcining zone.The two big key factors that the burnt quality in back is forged in decision are calcining temperature and heat-up rate, and this Technology just in time solves two hang-ups, forges the burnt quality in back so finally improved.
The present invention can improve production capacity 50% ~ 400%, satisfies the process requirements of extensive aluminium anode factory calcining petroleum coke, simultaneously also can supporting large-scale petroleum is burnt concentrates calcining to need.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Embodiments of the invention: open and forge preceding storehouse lower plugboard valve 1, being stored in the raw material of forging in the preceding storehouse is dosed on the rubber conveyer 3 through adhesive tape constant feeder 2, by equipment for removing ferric ion 4,7 after push-pull valve 6 and oblique cutting feed elephant trunk 21 are transported in the rotary kiln 9 calcines, the high temperature dust flue gas that the rotary kiln afterbody is discharged excessively enters heavy grey chamber 8 behind the fine grain burnt grain of section 19 sedimentations through rotary kiln 9, arrives waste heat boiler again after the certain burnt dirt of sedimentation and imperfect combustion fugitive constituent fully burn.The fine grain burnt grain of being collected by excessive section 19 sedimentation of rotary kiln 9 turns back to rubber conveyer 3 and reenters the calcining flow process after push-pull valve 23 enters chapelet 20.When igniting baking kiln, be fixed on the fuel that the burner 13 of kiln hood sprays into to rotary kiln by burner suspension bracket 14, provide combustion air to carry out ignition through a burner blower 10.In calcination process, because temperature of kiln head is very high, so need cooling blower 11 to provide a large amount of wind to cool off.Burner suspension bracket 14 is suspended on the manual monorail trolley 17 to realize that burner 13 puts in or pull out kiln hood.The volatile matter that material discharges in the calcination process provides combustion air fully to burn by the airduct and the tuyere of secondary air system 22.The material that calcining is good enters through electronic discharge elephant trunk 12 and carries out in the cooler 16 directly and water spray cooling indirectly, and material is cooled to certain temperature after adhesive tape measures 18 scales metering back is transported to and forges back material storage place by forging back material handling equipment.By dust-laden exhaust gas emptying after dust-removal system 15 dedustings that direct water spray cooling produces, the collected burnt dirt of dedusting turns back to forges back material handling equipment.
Claims (10)
- [claim 1] a kind of rotary kiln for calcining refinery coke, it comprises rotary kiln (9), it is characterized in that: forging has push-pull valve (1) under the preceding storehouse, below the push-pull valve adhesive tape constant feeder (2), it is rubber conveyer (3) thereafter, rubber conveyer (3) connects rotary kiln (9) through the oblique cutting feed elephant trunk (21) with electronic push-pull valve (6), rotary kiln (9) afterbody connects heavy grey chamber (8), rotary kiln (9) head connects cooler (16), rotary kiln (9) head is provided with burner (13) and burner suspension bracket (14), with the supporting burner blower (10) that is provided with of burner, the other dust-laden exhaust gas treatment system (15) that disposes of cooler (16).
- [claim 2] rotary kiln for calcining refinery coke according to claim 1 is characterized in that: rotary kiln (9) is 1:0.9 from afterbody to head reducing ratio for reducing designs
- [claim 3] rotary kiln for calcining refinery coke according to claim 1 and 2 is characterized in that: the middle part of rotary kiln (9) is provided with secondary air system (22), and it comprises speed control by frequency variation blower fan, airduct and tuyere.
- [claim 4] rotary kiln for calcining refinery coke according to claim 1 is characterized in that: the diameter of rotary kiln (9) is Φ 3.0m, and length is 60m.
- [claim 5] rotary kiln for calcining refinery coke according to claim 1 is characterized in that: rubber conveyer (3) is provided with electromagnetism deironing system (4), (7).
- [claim 6] rotary kiln for calcining refinery coke according to claim 1 is characterized in that: rotary kiln (9) head is provided with cooling blower (11), and is linked to each other by electronic discharge elephant trunk (12) with cooler (16) opening for feed.
- [claim 7] rotary kiln for calcining refinery coke according to claim 1 is characterized in that: rotary kiln (9) afterbody is provided with excessive section (19), connects chapelet (20) through push-pull valve (23), and chapelet (20) connects transfer roller (3).
- [claim 8] rotary kiln for calcining refinery coke according to claim 1 is characterized in that: burner suspension bracket (14) top is provided with manual monorail trolley (17).
- [claim 9] rotary kiln for calcining refinery coke according to claim 1 is characterized in that: cooler (16) discharge gate below is provided with adhesive tape weigher (18), and adhesive tape weigher (18) connects dust-laden exhaust gas treatment system (15).
- [claim 10] rotary kiln for calcining refinery coke according to claim 1 is characterized in that: be provided with direct water-cooled tube in cooler (16), in its outer setting the indirect cooling water pipe arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007102032632A CN101462714B (en) | 2007-12-19 | 2007-12-19 | Rotary kiln for calcining refinery coke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007102032632A CN101462714B (en) | 2007-12-19 | 2007-12-19 | Rotary kiln for calcining refinery coke |
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| Publication Number | Publication Date |
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| CN101462714A true CN101462714A (en) | 2009-06-24 |
| CN101462714B CN101462714B (en) | 2011-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007102032632A Active CN101462714B (en) | 2007-12-19 | 2007-12-19 | Rotary kiln for calcining refinery coke |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557001A (en) * | 2010-12-28 | 2012-07-11 | 湖南晟通科技集团有限公司 | Method for increasing extraction yield of calcined petroleum coke in rotary kiln |
| CN102745664A (en) * | 2011-04-21 | 2012-10-24 | 贵阳铝镁设计研究院有限公司 | Method and device for calcinating needle coke with rotary kiln |
| CN103045848A (en) * | 2012-12-18 | 2013-04-17 | 中冶长天国际工程有限责任公司 | Preheating device for siderite magnetizing and calcinating rotary kiln and method for preheating lump ore |
| CN109114917A (en) * | 2018-09-04 | 2019-01-01 | 石家庄尚太科技有限公司 | Petroleum coke drying removes iron integrated apparatus |
| CN110000396A (en) * | 2019-04-09 | 2019-07-12 | 兰州有色冶金设计研究院有限公司 | A kind of reduction apparatus and method of fine iron breeze production reduced iron powder |
| CN110470145A (en) * | 2019-08-30 | 2019-11-19 | 宝钢工程技术集团有限公司 | Small kiln cooling device and its cooling technique |
| CN113388415A (en) * | 2021-06-24 | 2021-09-14 | 上海沃骋有色金属有限公司 | Novel petroleum coke rotary kiln calcines device |
| CN115751990A (en) * | 2022-11-30 | 2023-03-07 | 湖南华信陶粒科技有限公司 | Rotary kiln heat energy circulating system and application thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368286C (en) * | 2005-05-26 | 2008-02-13 | 中南大学 | Method and device of rotary calcining petrol coke |
-
2007
- 2007-12-19 CN CN2007102032632A patent/CN101462714B/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557001A (en) * | 2010-12-28 | 2012-07-11 | 湖南晟通科技集团有限公司 | Method for increasing extraction yield of calcined petroleum coke in rotary kiln |
| CN102557001B (en) * | 2010-12-28 | 2014-03-12 | 晟通科技集团有限公司 | Method for increasing extraction yield of calcined petroleum coke in rotary kiln |
| CN102745664A (en) * | 2011-04-21 | 2012-10-24 | 贵阳铝镁设计研究院有限公司 | Method and device for calcinating needle coke with rotary kiln |
| CN103045848A (en) * | 2012-12-18 | 2013-04-17 | 中冶长天国际工程有限责任公司 | Preheating device for siderite magnetizing and calcinating rotary kiln and method for preheating lump ore |
| CN103045848B (en) * | 2012-12-18 | 2014-08-06 | 中冶长天国际工程有限责任公司 | Preheating device for siderite magnetizing and calcinating rotary kiln and method for preheating lump ore |
| CN109114917A (en) * | 2018-09-04 | 2019-01-01 | 石家庄尚太科技有限公司 | Petroleum coke drying removes iron integrated apparatus |
| CN109114917B (en) * | 2018-09-04 | 2023-10-27 | 石家庄尚太科技股份有限公司 | Petroleum coke drying and iron removing integrated device |
| CN110000396A (en) * | 2019-04-09 | 2019-07-12 | 兰州有色冶金设计研究院有限公司 | A kind of reduction apparatus and method of fine iron breeze production reduced iron powder |
| CN110470145A (en) * | 2019-08-30 | 2019-11-19 | 宝钢工程技术集团有限公司 | Small kiln cooling device and its cooling technique |
| CN113388415A (en) * | 2021-06-24 | 2021-09-14 | 上海沃骋有色金属有限公司 | Novel petroleum coke rotary kiln calcines device |
| CN115751990A (en) * | 2022-11-30 | 2023-03-07 | 湖南华信陶粒科技有限公司 | Rotary kiln heat energy circulating system and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101462714B (en) | 2011-04-13 |
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Owner name: GUIYANG ALUMINUM AND MAGNESIUM DESIGN INSTITUTE CO Free format text: FORMER NAME: GUIYANG ALUMINIUM AND MAGNESIUM DESIGN INST. |
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Address after: 550081 Guiyang Province, Jinyang New District, Zhu Zhu Road, No. 2 Patentee after: Guiyang Aluminum & Magnesium Design Institute Co., Ltd. Address before: 550004 No. 208, Beijing Road, Guiyang, Guizhou Patentee before: Guiyang Aluminium and Magnesium Design Inst. |