CN102584047A - Cooling method of cement clinker - Google Patents
Cooling method of cement clinker Download PDFInfo
- Publication number
- CN102584047A CN102584047A CN2012100203859A CN201210020385A CN102584047A CN 102584047 A CN102584047 A CN 102584047A CN 2012100203859 A CN2012100203859 A CN 2012100203859A CN 201210020385 A CN201210020385 A CN 201210020385A CN 102584047 A CN102584047 A CN 102584047A
- Authority
- CN
- China
- Prior art keywords
- cement clinker
- sprays
- air
- quench liquid
- cooling
- 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
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Classifications
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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
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a cooling method of cement clinker, which comprises the steps as follows: (1) air is blown into the cement clinker and cooling liquid is sprayed into the cement clinker; (2) the cement clinker in the step (1) is vibrated; and (3) the operations in the step (1) and the step (2) are repeated for at least one time. According to the cooling method, the step (1) and the step (2) can also be combined and conducted at the same time. The cooling method has the advantages that a liquid phase is adopted as an auxiliary cooling medium of the clinker, so that the clinker can be cooled rapidly and efficiently and the temperature of the cement clinker can be greatly reduced, thereby reducing the energy consumption.
Description
Technical field
The present invention relates to a kind of method of cooling of cement clinker.
Background technology
At present, cement clinker all is to adopt single gas phase as heat transferring medium, makes the cement clinker of kiln discharge cool off; Usually heat transferring medium is an air; Air and cement clinker heat-shift get into combustion-supporting or preheated raw meal in rotary kiln and the dry method kiln decomposing furnace then, to improve heat exchange efficiency.But the thermal capacity of air is lower, on average is about 1.14KJ/ ℃
. Kg, heat exchange efficiency is low; For discharging cooling clinker temperature is reduced to below 100 ℃, need in cooler, blast excessive air.General cooler blast volume is 2-4Nm
3/ Kg
. Grog, and the Actual combustion required airflow is smaller or equal to 1.0 Nm
3/ Kg
. Grog blasts too much air, has increased power of fan on the one hand; Secondary air temperature is difficult to improve on the other hand, and exhausted air quantity increases simultaneously, and the thermosteresis that waste gas is taken away also increases; Therefore, as the grog heat-eliminating medium, efficient is low with single gas; Make the temperature of cooler grog under many situation still more than 100 ℃, can not reach requirement.
And cement clinker is prone to caking in temperature-fall period, makes that its internal temperature is difficult to reduce, thereby can not be at utmost, the temperature of the fastest reduction cement clinker.
Summary of the invention
The technical problem that the present invention will solve is, overcomes the deficiency of prior art, and a kind of method of cooling of cement clinker quick and with low cost is provided.
The present invention solve the technical problem the technical scheme that is adopted, and a kind of method of cooling of cement clinker may further comprise the steps:
(1) cement clinker is blasted the heat-eliminating medium air and sprays into quench liquid, the air capacity that sprays into is that every 1kg grog sprays into air 0.5-1L, and the quench liquid straying quatity is that every 1kg grog sprays into quench liquid 0.02-0.1kg, and the time that sprays into liquid is 4-12min;
(2) vibration cement clinker, time of vibration are 8-24min (preferred 10-20min);
(3) operation at least 1 time of repeating step (1) and (2).
Preferred steps (1) and (2) merge carries out simultaneously; Promptly cement clinker is blasted the heat-eliminating medium air and sprays into quench liquid; The air capacity that sprays into is that every 1kg grog sprays into air 0.5-1L, and the quench liquid straying quatity is that every 1kg grog sprays into quench liquid 0.02-0.1kg, when blasting the heat-eliminating medium air and spraying into quench liquid; Vibration cement clinker, cooling time of vibration are 8-24min (preferred 10-20min);
Further, the quench liquid preferably water, particularly process water, the irrigation water that spray into also can be tap water, treated trade effluent or sewage etc.
The present invention is bubbling air in cement clinker, sprays into quench liquid such as water simultaneously, because water is stronger than air heat absorption capacity, has therefore improved the evaporation efficiency of cement clinker, 4.184/ ℃ of liquid water mean heat capacity
. Kg, vaporization heat 2460KJ/Kg, 2.33KJ/ ℃ of steam mean heat capacity
. Kg; Therefore the 1kg liquid water heat that becomes 1000 ℃ of steam and need is 4.4 times that the 1kg air rises to the same required heat of temperature, adopts the auxiliary heat-eliminating medium of liquid phase as grog, and grog is cooled off fast and efficiently; Reduce the temperature of cement clinker significantly, cut down the consumption of energy.
Go into after the water vapor in rotary kiln or the decomposing furnace can with the high temperature coal reaction, form water-gas, make that the combustionvelocity of coal is faster, heating power is more concentrated; Therefore, the water of an amount of vaporization not only can not influence clinker burning, and helps burning; But water vapour can make burning not prosperous too much, even extinguishes, very little; Then can not reach combustion-supporting effect, therefore, the straying quatity of quench liquid such as water must be controlled suitably.
Vibration helps the cement clinker uniform heat exchange, can improve radiating efficiency; Vibration number can be selected to confirm according to the size of cement clinker volume, generally can be 2-3 time.
Embodiment
Below in conjunction with embodiment the present invention is done further explain.
Embodiment 1
Present embodiment may further comprise the steps:
(1) cement clinker is blasted air and spray into liquid process water 5min;
(2) vibrating step (1) cement clinker 10min;
(3) operation 1 time of repeating step (1) and (2).
The air amount of blasting is that every 1kg grog sprays into air 1L, and the liquid straying quatity is that every 1kg grog sprays into liquid 0.05kg.
The clinker temperature of present embodiment is reduced to 80 ℃ in 20min, energy consumption reduces by 49%.
Embodiment 2
Present embodiment may further comprise the steps:
Cement clinker is blasted the heat-eliminating medium air and sprays into the quench liquid process water; The air capacity that sprays into is that every 1kg grog sprays into air 0.8L; The quench liquid straying quatity is that every 1kg grog sprays into quench liquid 0.1kg; When blasting the heat-eliminating medium air and spraying into quench liquid, the vibration cement clinker, the cooling time of vibration is 10min.
The clinker temperature of present embodiment is reduced to 70 ℃ in 40min, energy consumption reduces by 32%.
Embodiment 3
Present embodiment may further comprise the steps:
(1) cement clinker is blasted air and sprays into process water 12min;
(2) vibrating step (1) cement clinker 12min;
(3) operation 3 times of repeating step (1) and (2).
The air amount of blasting is that every 1kg grog sprays into air 0.5L, and the liquid straying quatity is that every 1kg grog sprays into liquid 0.02kg.
The clinker temperature of present embodiment is reduced to 50 ℃ in 90min, energy consumption reduces by 21%.
Claims (6)
1. the method for cooling of a cement clinker is characterized in that, comprises the steps:
(1) cement clinker is blasted the heat-eliminating medium air and sprays into quench liquid, the air capacity that sprays into is that every 1kg grog sprays into air 0.5-1L, and the quench liquid straying quatity is that every 1kg grog sprays into quench liquid 0.02-0.1kg, and the time that sprays into quench liquid is 4-12min;
(2) vibration cement clinker, time of vibration is 8-24min;
(3) operation at least 1 time of repeating step (1) and (2).
2. the method for cooling of cement clinker according to claim 1 is characterized in that, in the step (2), time of vibration is 10-20min.
3. the method for cooling of a cement clinker is characterized in that, comprises the steps: cement clinker is blasted the heat-eliminating medium air and sprays into quench liquid; The air capacity that sprays into is that every 1kg grog sprays into air 0.5-1L; The quench liquid straying quatity is that every 1kg grog sprays into quench liquid 0.02-0.1kg, when blasting the heat-eliminating medium air and spraying into quench liquid; The vibration cement clinker, the cooling time of vibration is 8-24min.
4. the method for cooling of cement clinker according to claim 3 is characterized in that, blast the heat-eliminating medium air, spray into quench liquid and the vibration cement clinker time be 10-20min.
5. like the method for cooling of the described cement clinker of one of claim 1 to 4, it is characterized in that said quench liquid is a water.
6. the method for cooling of cement clinker as claimed in claim 5 is characterized in that, said water is process water, irrigation water, tap water, treated trade effluent or sewage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100203859A CN102584047A (en) | 2012-01-30 | 2012-01-30 | Cooling method of cement clinker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100203859A CN102584047A (en) | 2012-01-30 | 2012-01-30 | Cooling method of cement clinker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102584047A true CN102584047A (en) | 2012-07-18 |
Family
ID=46473390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100203859A Pending CN102584047A (en) | 2012-01-30 | 2012-01-30 | Cooling method of cement clinker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102584047A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444133A (en) * | 2019-08-27 | 2021-03-05 | 湖北宜飞复合新材料有限公司 | Water spraying device for cement clinker cooling machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1562846A (en) * | 2004-03-19 | 2005-01-12 | 武汉理工大学 | Method for cooling multiphase media of cooling machine for cement clinker |
-
2012
- 2012-01-30 CN CN2012100203859A patent/CN102584047A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1562846A (en) * | 2004-03-19 | 2005-01-12 | 武汉理工大学 | Method for cooling multiphase media of cooling machine for cement clinker |
Non-Patent Citations (1)
| Title |
|---|
| 首都水泥工业学校主编: "《水泥烧成工艺》", 31 March 1976 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444133A (en) * | 2019-08-27 | 2021-03-05 | 湖北宜飞复合新材料有限公司 | Water spraying device for cement clinker cooling machine |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120718 |