CN101665332A - Cooling process for producing white cement clinker - Google Patents
Cooling process for producing white cement clinker Download PDFInfo
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- CN101665332A CN101665332A CN200910172334A CN200910172334A CN101665332A CN 101665332 A CN101665332 A CN 101665332A CN 200910172334 A CN200910172334 A CN 200910172334A CN 200910172334 A CN200910172334 A CN 200910172334A CN 101665332 A CN101665332 A CN 101665332A
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- heat exchange
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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
- 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
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Abstract
The invention relates to a cooling process for producing white cement clinker, comprising the following steps: in a first phase, high-temperature clinkers discharged from a rotary kiln carry out heatexchange with gas by a fixed grate plate cooling device, after the temperature is reduced, the high-temperature clinkers enter into a bleaching machine; in a second phase, the high-temperature clinkers enter into the bleaching machine to carry out spraying quenching bleaching after the temperature is reduced, water steam produced by quenching carries out heat exchange with cold air through a heatexchanger and is discharged after passing through a dust catcher; in a third phase, the bleached clinkers enter into a cooling machine to reduce the temperature to 80-100 DEG C, and the produced hot air is re-utilized in a kiln tail decomposing furnace, and after wind is exhausted to the air through the dust catcher; the high-temperature gas produced by heat exchange in the first phase is fed intothe rotary kiln to be re-utilized; gas which carry out heat exchange with steam in the second phase is fed into the first phase for carry out heat exchange with the high-temperature clinkers. The cooling process has the beneficial effects that the energy consumption is reduced, coal consumption is reduced, heat recovery efficiency is improved and the production cost is reduced.
Description
Technical field
The present invention relates to a kind of process for cooling, especially a kind of process for cooling of producing white cement clinker.
Background technology
Along with white portland cement is used more and more widely, status in building material industry is also more and more higher, yet on the processing method of producing white portland cement, also there are many weak points, as the coal consumption height, heat recovery efficiency is low, the performance of grog does not reach index request to a great extent, and production cost is high, does not meet country about energy-conservation and comprehensive utilization of resources policy.
Summary of the invention:
Of the present invention for solving problems such as white cement production cost height, coal consumption height, heat recovery rate are low, a kind of process for cooling of producing white cement clinker is provided.
Technical scheme of the present invention is: first section, the high temperature chamotte that comes out from rotary kiln is through fixedly grate plate refrigerating unit and gas carry out entering poaching engine after heat exchange is lowered the temperature; Second section, enter poaching engine after the high temperature chamotte cooling and carry out the bleaching of trickle chilling, the water vapour that produces behind the chilling discharges through fly-ash separator after over-heat-exchanger is met the freezing air heat exchange; The 3rd section, the grog after the bleaching enters cooler and is cooled to 80 ℃-100 ℃, and the hot blast of generation enters kiln tail decomposing furnace and utilizes, and the lingering remnants of past customs enters atmosphere through fly-ash separator; The high-temperature gas that produces after the heat exchange in first section is sent into rotary kiln and is utilized; The gas that in second section water vapour is carried out after the heat exchange is sent into first section as high temperature chamotte is carried out the gas that heat exchange is used.
The invention has the beneficial effects as follows: it is a quantum jump to traditional white cement production technique that the present invention adopts the tri-stage bleaching cooling technology to produce white portland cement technology, has save energy, reduces coal consumption, improves heat recovery efficiency, and effect such as reduce production costs.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail:
Embodiment 1:
First section, the high temperature chamotte that comes out from rotary kiln is through fixedly grate plate refrigerating unit and gas carry out entering poaching engine after heat exchange is lowered the temperature;
Second section, enter poaching engine after the high temperature chamotte cooling and carry out the bleaching of trickle chilling, the water vapour that produces behind the chilling discharges through fly-ash separator after over-heat-exchanger is met the freezing air heat exchange;
The 3rd section, the grog after the bleaching enters cooler and is cooled to 80 ℃-100 ℃, and the hot blast of generation enters kiln tail decomposing furnace and utilizes, and the lingering remnants of past customs enters atmosphere through fly-ash separator.
Embodiment 2:
The high-temperature gas that produces after the heat exchange in first section is sent into rotary kiln and is utilized.
Embodiment 3:
The gas that in second section water vapour is carried out after the heat exchange is sent into first section as high temperature chamotte is carried out the gas that heat exchange is used.
Claims (3)
1, a kind of process for cooling of producing white cement clinker is characterized in that:
First section, the high temperature chamotte that comes out from rotary kiln is through fixedly grate plate refrigerating unit and gas carry out entering poaching engine after heat exchange is lowered the temperature;
Second section, enter poaching engine after the high temperature chamotte cooling and carry out the bleaching of trickle chilling, the water vapour that produces behind the chilling discharges through fly-ash separator after over-heat-exchanger is met the freezing air heat exchange;
The 3rd section, the grog after the bleaching enters cooler and is cooled to 80 ℃-100 ℃, and the hot blast of generation enters kiln tail decomposing furnace and utilizes, and the lingering remnants of past customs enters atmosphere through fly-ash separator.
2, a kind of process for cooling of producing white cement clinker according to claim 1, it is characterized in that: the high-temperature gas that produces after the heat exchange in first section is sent into rotary kiln and is utilized.
3, a kind of process for cooling of producing white cement clinker according to claim 1 is characterized in that: the gas that in second section water vapour is carried out after the heat exchange is sent into first section as high temperature chamotte is carried out the gas that heat exchange is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910172334A CN101665332A (en) | 2009-09-30 | 2009-09-30 | Cooling process for producing white cement clinker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910172334A CN101665332A (en) | 2009-09-30 | 2009-09-30 | Cooling process for producing white cement clinker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101665332A true CN101665332A (en) | 2010-03-10 |
Family
ID=41802141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910172334A Pending CN101665332A (en) | 2009-09-30 | 2009-09-30 | Cooling process for producing white cement clinker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101665332A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390940A (en) * | 2011-08-24 | 2012-03-28 | 河南万兴特种水泥有限公司 | Preparation process of white cement |
| CN103011640A (en) * | 2012-12-27 | 2013-04-03 | 天津水泥工业设计研究院有限公司 | White cement clinker bleaching process and equipment |
| CN106977120A (en) * | 2017-05-26 | 2017-07-25 | 葛洲坝石门特种水泥有限公司 | A kind of white cement clinker and its calcining, cooling bleaching method |
| CN109111135A (en) * | 2018-09-04 | 2019-01-01 | 江苏兆佳建材科技有限公司 | A kind of manufacturing process of white cement |
| CN109206030A (en) * | 2018-10-31 | 2019-01-15 | 江西银杉白水泥有限公司 | A kind of multistage cooling white cement clinker cooling technique |
| CN111718138A (en) * | 2020-07-01 | 2020-09-29 | 冯建新 | New dry process cement clinker production device and process |
-
2009
- 2009-09-30 CN CN200910172334A patent/CN101665332A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390940A (en) * | 2011-08-24 | 2012-03-28 | 河南万兴特种水泥有限公司 | Preparation process of white cement |
| CN103011640A (en) * | 2012-12-27 | 2013-04-03 | 天津水泥工业设计研究院有限公司 | White cement clinker bleaching process and equipment |
| CN106977120A (en) * | 2017-05-26 | 2017-07-25 | 葛洲坝石门特种水泥有限公司 | A kind of white cement clinker and its calcining, cooling bleaching method |
| CN109111135A (en) * | 2018-09-04 | 2019-01-01 | 江苏兆佳建材科技有限公司 | A kind of manufacturing process of white cement |
| CN109206030A (en) * | 2018-10-31 | 2019-01-15 | 江西银杉白水泥有限公司 | A kind of multistage cooling white cement clinker cooling technique |
| CN111718138A (en) * | 2020-07-01 | 2020-09-29 | 冯建新 | New dry process cement clinker production device and process |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100310 |