CN2653409Y - Waste heat generation rotary kiln with fire stage preheater decomposing furnace - Google Patents
Waste heat generation rotary kiln with fire stage preheater decomposing furnace Download PDFInfo
- Publication number
- CN2653409Y CN2653409Y CNU032141998U CN03214199U CN2653409Y CN 2653409 Y CN2653409 Y CN 2653409Y CN U032141998 U CNU032141998 U CN U032141998U CN 03214199 U CN03214199 U CN 03214199U CN 2653409 Y CN2653409 Y CN 2653409Y
- Authority
- CN
- China
- Prior art keywords
- rotary kiln
- waste heat
- tube
- pipeline
- whirlwind
- 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.)
- Expired - Fee Related
Links
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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
Landscapes
- Muffle Furnaces And Rotary Kilns (AREA)
- Furnace Details (AREA)
Abstract
The utility model relates to a drying method rotary kiln device which is able to generate electricity with the surplus heat in the producing process and the art. The first cyclone tube is connected in series with the second and the third cyclone tubes through a pipe line; the material outlet of the third cyclone tube is connected with a decomposing stove; the decomposing stove is connected with the fourth and fifth cyclone tube through the pipe line; the material outlet of the fifth cyclone tube is connected with the rotary kiln; and the first cyclone tube is connected with the surplus boiler in the generating device through the pipe line. The utility model provides a drying method rotary kiln device which is able to generate electricity with the surplus heat in the producing process and the art. The utility model aims at solving the problems of the prior cement producing art which has a lower cement output, a high heat consumption and the material outlet pipe is easy to be stopped and produce husks.
Description
One, technical field: the present invention relates to the equipment that a kind of dry-process rotory kiln is produced cement and utilized the waste heat in producing to generate electricity.
Two, background technology:
The rotary system of China's existing band cogeneration has two kinds of forms: a kind of is that rotary kiln directly links to each other with waste heat boiler, generates electricity.Another kind is to add two-stage preheater dore furnace device between rotary kiln and waste heat boiler, generates electricity.Above-mentioned two kinds of systems exist because the low-temperature electricity-generating technology does not pass a test, all adopt the high temperature generation technology, this rotary kiln all adopts the hollow kiln, though be to generate electricity, ensure most of electricity consumption of self process system, but the cement output that such system produces is low, and system of poor quality investment is excessive, the hear rate height.(a kind of in addition, the five-stage cyclone preheater system that uses in the existing cement industry grog calcination process, generally be that the five-stage whirlwind tube uprightly is composed in series, with rotary kiln when supporting, easily cause the hear rate height of rotary kiln, yield poorly, the cement clinker quality instability, defectives such as running rate is low, and the blanking pipeline of five-stage cyclone preheater itself easily stops up, skinning, and labor strength is big in the operating process, the raw material that come out from five-stage cyclone preheater, resolution ratio has only about 40%, and hear rate is up to 1400kcd/kg.cl).
Three, summary of the invention:
1, goal of the invention: the invention provides the equipment that a kind of dry-process rotory kiln is produced cement and utilized the waste heat in producing to generate electricity, its purpose is to solve the problem that exists aspects such as cement output is low, hear rate is high, the blanking pipeline easily stops up, skinning to exist in the technology in the existing manufacture of cement.
2, technical scheme: a kind of cogeneration rotary kiln that has Pyatyi preheater dore furnace, it mainly include five-stage whirlwind tube, preheating decomposition furnace, rotary kiln and the TRT that links to each other by pipeline in waste heat boiler, it is characterized in that: one-level whirlwind tube is cascaded secondary whirlwind tube and three grades of whirlwind tubes by pipeline, discharging opening at three grades of whirlwind tubes connects preheating decomposition furnace, and preheating decomposition furnace is being connected with Category Four cyclone tube, five-stage whirlwind tube by pipeline; Discharging opening at the five-stage whirlwind tube is connected with rotary kiln; Be connected with waste heat boiler in the TRT by pipeline at one-level whirlwind tube.
3, advantage and effect: the present technique characteristic feature of an invention is to add Pyatyi preheating decomposition furnace device between rotary kiln and waste heat boiler, after this technology is applied to the technological transformation of cogeneration kiln system, it is low to solve the original production system throughput, of poor quality, the high problem of hear rate.Under the condition that does not increase energy consumption, make rotary kiln output improve 1-4 doubly, and improvement generating effect, hear rate is reduced to below the 1000Kcal/kg-cl, solved the problem that aspects such as the blanking pipeline easily stops up, skinning exist, so the present invention becomes the high-temperature residual heat generating rotary system that has novel precal cination technique preheater dore furnace.This technical scheme is that φ 3.5 * 70m band cogeneration rotary system undergoes technological transformation to house property cement plant, Shenyang specification successfully, obtains the good technical effect, makes this system throughput bring up to 40T/H by former 16.5T/H.
Four, description of drawings: accompanying drawing 1 is primary structure schematic diagram of the present invention.
Five, the specific embodiment:
The cogeneration rotary kiln that has Pyatyi preheater dore furnace, it mainly include five-stage whirlwind tube, preheating decomposition furnace, rotary kiln and the TRT that links to each other by pipeline in waste heat boiler, in accompanying drawing 1, one-level whirlwind tube 1 is cascaded secondary whirlwind tube 2 and three grades of whirlwind tubes 3 by pipeline, discharging opening at three grades of whirlwind tubes 3 connects preheating decomposition furnace 4, and preheating decomposition furnace 4 is being connected with Category Four cyclone tube 5, five-stage whirlwind tube 6 by pipeline; Discharging opening at five-stage whirlwind tube 6 is connected with rotary kiln 7; Be connected with waste heat boiler 8 in the TRT by pipeline at one-level whirlwind tube 1.Left part is TRTs such as chimney, dust-settling compartment among the figure, and waste heat boiler 8 is the part in the TRT.
The production method that has the cogeneration rotary kiln of Pyatyi preheater dore furnace is undertaken by following processing step: the lime stone raw material enter 1 preheating of one-level whirlwind tube, enter secondary whirlwind tube 2 then and three grades of whirlwind tubes 3 are proceeded preheating.The raw material that come out from three grades of whirlwind tubes 3 carry out predecomposition entering preheating decomposition furnace 4, and the raw material that come out from preheating decomposition furnace 4 enter Category Four cyclone tube 5 again and five-stage whirlwind tube 6 continues heating.The raw material that come out from five-stage whirlwind tube 6 enter rotary kiln 7 then and burn till.The thermal current that rotary kiln 7 is discharged enters preheating decomposition furnace 4 and carries out heat exchange with the raw material that preheating decomposition furnace 4 gets off, and reaches the effect of raw material predecomposition, and the output of rotary kiln has improved like this.The waste gas that carries out discharging after the heat exchange through preheating decomposition furnace 4 and raw material enters waste heat boiler 8 and generates electricity, and has so promptly guaranteed the requirement that former waste heat boiler 8 generates electricity, and has increased substantially the output of rotary kiln again.
Claims (1)
1, a kind of cogeneration rotary kiln that has Pyatyi preheater dore furnace, it mainly include five-stage whirlwind tube, preheating decomposition furnace, rotary kiln (7) and the TRT that links to each other by pipeline in waste heat boiler (8), it is characterized in that: one-level whirlwind tube (1) is cascaded secondary whirlwind tube (2) and three grades of whirlwind tubes (3) by pipeline, discharging opening at three grades of whirlwind tubes (3) connects preheating decomposition furnace (4), and preheating decomposition furnace (4) is being connected with Category Four cyclone tube (5), five-stage whirlwind tube (6) by pipeline; Discharging opening at five-stage whirlwind tube (6) is connected with rotary kiln (7); Be connected with waste heat boiler (8) in the TRT by pipeline at one-level whirlwind tube (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032141998U CN2653409Y (en) | 2003-08-12 | 2003-08-12 | Waste heat generation rotary kiln with fire stage preheater decomposing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032141998U CN2653409Y (en) | 2003-08-12 | 2003-08-12 | Waste heat generation rotary kiln with fire stage preheater decomposing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2653409Y true CN2653409Y (en) | 2004-11-03 |
Family
ID=34325695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032141998U Expired - Fee Related CN2653409Y (en) | 2003-08-12 | 2003-08-12 | Waste heat generation rotary kiln with fire stage preheater decomposing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2653409Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100449238C (en) * | 2003-08-12 | 2009-01-07 | 沈阳恒星水泥机械有限公司 | Afterheat electricity generating rotary kiln with five-stage preheating decomposing furnace and its production method |
-
2003
- 2003-08-12 CN CNU032141998U patent/CN2653409Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100449238C (en) * | 2003-08-12 | 2009-01-07 | 沈阳恒星水泥机械有限公司 | Afterheat electricity generating rotary kiln with five-stage preheating decomposing furnace and its production method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110498622B (en) | Method for decomposing and calcining calcium oxide outside multistage suspension preheating kiln for powder | |
| CN201254529Y (en) | Cement clinker calcination system | |
| CN214571574U (en) | Powdery lime calcining system | |
| CN103708515A (en) | Method for producing alpha-Al2O3 by employing predecomposition technology and taking aluminium hydrogen as raw material | |
| CN100449238C (en) | Afterheat electricity generating rotary kiln with five-stage preheating decomposing furnace and its production method | |
| CN201803367U (en) | Energy saving quaternary body | |
| CN115340304A (en) | Device and method for producing light-burned magnesium oxide through decomposition outside five-stage suspension preheating kiln | |
| CN115073024A (en) | Device and process for preparing active magnesium oxide dry-process light-burning section | |
| CN2653409Y (en) | Waste heat generation rotary kiln with fire stage preheater decomposing furnace | |
| CN104101225A (en) | System and method for increasing comprehensive utilization ratio of tail gas of calcium carbide furnace | |
| CN212610308U (en) | Cement clinker firing production line capable of improving waste gas waste heat utilization rate | |
| CN113307522A (en) | Device and method for producing II type anhydrous gypsum by using industrial byproduct gypsum | |
| CN108855941B (en) | Steel slag micro powder selecting system utilizing waste heat flue gas of steel plant | |
| CN214009940U (en) | Energy-saving suspension roasting coal gangue treatment system | |
| CN105485670B (en) | The optimization combustion method and special equipment of a kind of alumina producer gaseous pollutant control | |
| CN203699937U (en) | System for producing alpha-Al2O3 by adopting predecomposition process by taking hydrogen and aluminum as raw materials | |
| CN101195521B (en) | Method for producing margin coal gas by using steel in rotary cement kiln predecomposition furnace | |
| CN210127193U (en) | Powdery lime calcining, decomposing and preparing system | |
| CN110885064B (en) | System and method for producing cement clinker and sulfuric acid by using calcium sulfate | |
| CN206001892U (en) | Rotary reaction furnace hot air heating system | |
| CN106091672B (en) | Rotary reaction furnace hot air heating system | |
| CN218895668U (en) | Raw material preheating system for cement clinker production line | |
| CN218723206U (en) | Industrial silicon smelting and granular silicon production heat energy coupling system | |
| CN2527944Y (en) | Cyclone preheater | |
| CN215570491U (en) | Sludge direct-fired incinerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |