A process for cooling white clinker is described comprising the following phases: a) a phase of size reduction of the clinker leaving the rotary kiln in the aggregate form and sending of the clinker thus grinded to the next phase of cooling, in a time of about 1 second; b) a phase of cooling at temperatures lower than 400-500°C of the clinker coming from phase a), by spraying of an …
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2025415· These recent innovative works have further inspired our exploration of the potent impact of liquid nitrogen quenching treatment, potentially achieving simultaneous morphology modulation, lattice strain modulation, coordination reconstruction and GB construction.
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66· Environmental Impact of Clinker Production The production of clinkers has a significant environmental impact including the production of greenhouse gasses (CO2), energy consumption, air pollution, extraction of materials by mining, water consumption and pollution, and waste generation. Many cement companies are actively working to mitigate these negative …
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The water used in the conventional wet quenching process for cooling the red hot white cement clinker, as disclosed in Figure 1, exchanges heat with the white cement clinker and is converted into steam having very high temperatures.
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The water used in the conventional wet quenching process for cooling the red hot white cement clinker, as disclosed in Figure 1, exchanges heat with the white cement clinker and is converted into steam having very high temperatures.
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The present invention relates to a method of and to an apparatus for the cooling of white cement clinker which is formed by high temperature sintering in a rotary kiln or cement-firing furnace resulting in sintering of the particles together. More particularly, the invention relates to the water-quenching of white cement clinker which is produced at a high temperature and serves as a …
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The present invention relates to a method of and to an apparatus for the cooling of white cement clinker which is formed by high temperature sintering in a rotary kiln or cement-firing furnace resulting in sintering of the particles together. More particularly, the invention relates to the water-quenching of white cement clinker which is produced at a high temperature and serves as a …
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201581· To meet the product’s reference properties, special consideration must be given to the white clinker raw materials as well as the fuel used in …
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The invention provides a process for manufacturing white cement which includes steps of recovering flue gases generated during the quenching and drying process, extracting heat from the recovered flue gases to obtain water condensate and to generate electrical energy.
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The white cement clinker must be quenched as it falls from the kiln to freeze the clinker minerals in their high temperature form. However, this quenching does not need to be to ambient temperature or anything like that. 600 degrees C is sufficient. Therefore quenching in water sprays to this temperature, leaving some sensible heat in the clinker is possible. However, …
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51· To broaden sources of raw materials, we changed the chemical environment of the Fe in the clinker by adding ZnO, which weakened the adverse effects of the Fe on the whiteness of the clinker and achieved good results. Therefore, lead-zinc tailings and waste residue containing a certain amount of Zn can comprise the raw materials in white cement.
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The water used in the conventional wet quenching process for cooling the red hot white cement clinker, as disclosed in Figure 1, exchanges heat with the white cement clinker and is …
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No significant difference in phase content can be observed between cooling in air and water, probably because the clinker cooled in water mainly dissipate the heat through air. The water just cooled the platinum crucible and just a small area of clinker touched the crucible.
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White cement clinker bleaching process In our white cement plant, we use the combination of spray fog quenching and grate cooler strong wind quenching to …
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Refrigerating conditions of the clinker with different content С3Аwere changed via temperature changing at the beginning of quenching which models the position of clinker-ing zone of the …
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51· To broaden sources of raw materials, we changed the chemical environment of the Fe in the clinker by adding ZnO, which weakened the adverse effects of the Fe on the whiteness of the clinker and achieved good results. Therefore, lead-zinc tailings and waste residue containing a certain amount of Zn can comprise the raw materials in white cement.
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2001111· Properties, manufacture and prospects of white cement were discussed. Development of the methods of bleaching white cement, effect of intensifiers on clinker firing and methods of firing the white
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20191213· Quenching of red-hot clinker is a unique process of producing white clinker. It is necessary to cool the clinker temperature out of kiln from 1200 °C to below 600 °C in a few …
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201411· For the clinker melt viscosity very important is the effect of amphoteric components: Al 3+ and Fe 3+, linked with sodium and potassium and sulphate anions. The clinkering process is modified by mineralizers, used in the production of white clinker; the reactions of fluorides and chlorides are discussed.
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In accordance with the invention, the hot clinker is admixed with a finely divided and relatively cool Portland cement clinker (hereinafter referred to asthe quenching clinker), preferably immediately after the hot clinker leaves the clinkering zone of the kiln, in order that the.
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White cement is produced by grinding white cement clinker with a set-controlling agent. It differs from grey cement in its white color, which is used for aesthetic and solar reflective purposes. White cement production requires selection of raw materials low in iron and other contaminants to avoid discoloration of the clinker. The clinker is quickly quenched after burning to prevent re
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201411· For the clinker melt viscosity very important is the effect of amphoteric components: Al 3+ and Fe 3+, linked with sodium and potassium and sulphate anions. The clinkering process is modified by mineralizers, used in the production of white clinker; the reactions of fluorides and chlorides are discussed.
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No significant difference in phase content can be observed between cooling in air and water, probably because the clinker cooled in water mainly dissipate the heat through air. The water just cooled the platinum crucible and just a small area of clinker touched the crucible.
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The invention discloses a method for whitening white cement by carbon reduction and a special device, which aim to provide a more effective novel method for whitening. The method is realized by the following technical scheme: before clinker aggregate is sprayed with water, quenched and whitened outside a kiln, reducing deeper colored Fe2O3 contained in the clinker aggregate …
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Clinker: reactions in the kiln The milled and blended raw materials go to a silo and then to the kiln. Reactions which take place as the feed passes through the …
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