CN1142471A - Cooling process for white cement clinker - Google Patents
Cooling process for white cement clinker Download PDFInfo
- Publication number
- CN1142471A CN1142471A CN 96105635 CN96105635A CN1142471A CN 1142471 A CN1142471 A CN 1142471A CN 96105635 CN96105635 CN 96105635 CN 96105635 A CN96105635 A CN 96105635A CN 1142471 A CN1142471 A CN 1142471A
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- China
- Prior art keywords
- cooling
- cement clinker
- bleaching
- white cement
- cooler
- 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.)
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A two-step cooling process for clinker of white cement includes the first-step shower cooling the calcined clinker to 100-130 deg.C while bleaching it and the second-step shower cooling to 20-40 deg.C. Its apparatuses include primary shower cooling-bleaching machine, vibration conveyer, belt conveyer, secondary cooler and lifting machine. This new technology features less environmental pollution, increasing quality and reducing the intensity of labour.
Description
The present invention relates to the equipment of a kind of Cement Production technology and employing thereof, specifically is the process for cooling of white cement clinker.
White and colored cement are mainly used in building decoration engineering, can be made into colored mortar or make various colours and white concrete, as terrazzo, ornamental slab for paving the floor etc.
In order to improve the whiteness of cement, in process of production, must be with grog from 1250～1300 ℃ of quick cooling, general employing water spray cooling immediately and bleaching are handled, thus reduction Fe
2O
2Content, reach the purpose that improves whiteness.The grog process for cooling of known white cement be with the incinerating grog after the cooling bleaching output of once spraying water, send into the use of bank deposit again after making its grog reach room temperature gradually with the stacking method.There is following shortcoming in this once water spray bleaching process for cooling: (1) stacks or cooling is produced and do not had a continuity, the dust pollution grog in grog contaminate environment and the environment; (2) once the clinker temperature of water spray bleaching cooler output is up to more than 120 ℃, if the grog of temperature directly enters storing unit storehouse like this, heat can't distribute, and can influence clinker strength, and goes into to grind the clinker temperature height, and mill output will reduce, and increases cost; (3) adopt the cooling of stacking formula, labor strength is big; (4) once spray water cooling bleaching water spray is inhomogeneous, and the grog water content behind the cooling bleaching has difference.
The object of the present invention is to provide a kind of new grog process for cooling, this process for cooling can reduce pollution, improves the quality of products, and reduces labor strength.
Realize the scheme of the object of the invention, be will be after the incinerating white cement clinker is once sprayed water the cooling bleaching processing routinely, promptly carry out secondary and cool off continuously, its technical process is as follows: white cement clinker → trickle cooling bleaching → vibrating transportation → secondary cooling → lifting → clinker warehouse.Wherein once cool to 100～130 ℃, 5～15 minutes cooling times of secondary, grog is cooled to 20～40 ℃ or room temperature.
The equipment that adapts with technology of the present invention, be to spray water at a cement clinker of routine to increase the logical cooler of a Daepori between bleaching water spray cooling bleaching machine that process for cooling adopted and the storing unit storehouse, make it to be constructed as follows a set of equipment system: the cooling bleaching machine of spraying water → shake and send machine → conveyor → secondary cooler → lift → clinker warehouse.
Secondary cooler of the present invention is 2 meters of 1 meter～Φ of Φ, grows 10 meters～20 meters cylinder or makes the cooler that circumference rotates.The capacity of secondary cooler is greater than the cooler first time.
After the present invention adopted the continuous process for cooling of above-mentioned secondary, the grog of being exported generally reached room temperature or near room temperature, can directly enter Yuan Ku.Compare with existing technology, the continuous process for cooling of secondary alleviates labor strength because the grog conveying is continuously, mechanical transport, does not cause the pollution to grog of environmental pollution and environment; Cooler of volume ratio that grog enters the secondary cooler is big, and grog reaches distribute heat by mechanical rotation in the secondary cooler, and volatilization moisture plays the homogenizing grog to a certain extent.
Below in conjunction with embodiment the present invention is further described.
Embodiment:
Get raw material such as calcareous raw material, clayey raw material behind the high-temperature calcination ripe material, according to a conventional method grog is delivered to trickle cooling bleaching machine and carries out the processing of trickle cooling bleaching, make its effect that in the time of 800～900 ℃, is subjected to reducing medium (oxygen-free gas and contain portion C O), with Fe
2O
2Be reduced to the more shallow Fe of color
3O
4Or the mineral of FeO, under the condition of starvation, be cooled to 110～120 ℃ then.Send machine and conveyor to be delivered to the secondary cooler chilled material this moment through shaking, carried out secondary water spray cooling process 10 minutes, make material be cooled to room temperature after, promote through lift and can go into clinker warehouse.
The secondary cooler specification that present embodiment adopts is 1.5 meters of Φ, 15 meters of length, flow 3.5T/ hour cylinder cooler.Being equipped with one between the opening for feed of the discharge port of first trickle cooling bleaching machine and secondary cooler shakes and send machine and a conveyor; At the discharge port place of secondary cooler a lift is housed.
Claims (4)
1. cooling process for white cement clinker, be will be through incinerating white cement clinker water spray cooling bleaching, it is characterized in that carrying out secondary and cool off continuously, technical process is as follows: the white cement clinker → cooling bleaching → vibrating transportation of once spraying water → secondary cooling → lifting → clinker warehouse.
2. according to the described cooling process for white cement clinker of claim 1, grog to 100～130 ℃ is characterized in that once cooling; 5～15 minutes cooling times of secondary, grog is cooled to 20～40 ℃ or room temperature.
3. the equipment that adopts of the described cement clinker novel technique for cooling of a claim 1, comprise trickle cooling bleaching machine, it is characterized in that sending machine to be connected with the opening for feed of conveyor with the secondary cooler by shaking at trickle cooling bleaching machine discharge port place, lift is equipped with at the discharge port place of secondary cooler.
4. according to the described equipment of claim 3, it is characterized in that the secondary cooler is 1～2 meter of Φ, grow 10～20 meters cylinder or make the cooler that circumference rotates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96105635 CN1142471A (en) | 1996-08-01 | 1996-08-01 | Cooling process for white cement clinker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96105635 CN1142471A (en) | 1996-08-01 | 1996-08-01 | Cooling process for white cement clinker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1142471A true CN1142471A (en) | 1997-02-12 |
Family
ID=5118934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96105635 Pending CN1142471A (en) | 1996-08-01 | 1996-08-01 | Cooling process for white cement clinker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1142471A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011051962A2 (en) * | 2009-10-01 | 2011-05-05 | Ultratech Cement Limited | A process for manufacturing white cement |
| 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 |
| CN103459347A (en) * | 2011-03-18 | 2013-12-18 | 奥图泰有限公司 | Clinker substitute based on calcined clay |
| CN108017295A (en) * | 2018-01-31 | 2018-05-11 | 江西银杉白水泥有限公司 | A kind of efficient White cement bleaching machine |
| CN114211617A (en) * | 2021-12-10 | 2022-03-22 | 张朝峰 | Cement clinker production equipment |
-
1996
- 1996-08-01 CN CN 96105635 patent/CN1142471A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011051962A2 (en) * | 2009-10-01 | 2011-05-05 | Ultratech Cement Limited | A process for manufacturing white cement |
| WO2011051962A3 (en) * | 2009-10-01 | 2011-07-07 | Ultratech Cement Limited | A process for manufacturing white cement |
| CN103459347A (en) * | 2011-03-18 | 2013-12-18 | 奥图泰有限公司 | Clinker substitute based on calcined clay |
| CN103459347B (en) * | 2011-03-18 | 2015-08-19 | 奥图泰有限公司 | Based on the grog substituent of claying |
| 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 |
| CN108017295A (en) * | 2018-01-31 | 2018-05-11 | 江西银杉白水泥有限公司 | A kind of efficient White cement bleaching machine |
| CN108017295B (en) * | 2018-01-31 | 2023-08-01 | 江西银杉白水泥股份有限公司 | Efficient white cement clinker bleaching machine |
| CN114211617A (en) * | 2021-12-10 | 2022-03-22 | 张朝峰 | Cement clinker production equipment |
| CN114211617B (en) * | 2021-12-10 | 2023-12-22 | 含山南方水泥有限公司 | Cement clinker production facility |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |