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cement clinker production free patents

US5650005A Process for high free lime content in cement

A source of free lime is introduced into a cooling zone of a cement kiln in an amount to elevate the free lime content to a content of 0.6 to 2.0%, by weight. This addition is made without altering the normal or standard process operating parameters of the kiln for cement clinker production. The free lime content of 0.6 to 2.0%, by weight, provides advantageous characteristics in cement

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US20040157181A1 Method for manufacturing cement clinker

A method of manufacturing cement clinker includes a rotary cement kiln having a feed end, a mid-kiln feed location, and a burning end. The rotary kiln is tilted downwardly from the feed end to the burning end so that material introduced into the feed end travels downwardly to the burning end. Heat is directed at the burning end of the rotary kiln.

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EP3081546A1 Google Patents

The invention discloses a rapid-hardening high-belite calcium sulfoaluminate cement clinker and relates generally to a rapid-hardening high-belite calcium sulfoaluminate cement clinker and methods to use and to manufacture the clinker. The clinker of the present invention comprises 20% to 35% by weight of C 4 A 3 S,3% to 9% by weight of C 4 AF, 37% to 47% by weight of C 2 S, 0.5% to 4.6% by

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US5356472A Portland cement clinker and Google Patents

US5356472A US08/016,966 US1696693A US5356472A US 5356472 A US5356472 A US 5356472A US 1696693 A US1696693 A US 1696693A US 5356472 A US5356472 A US 5356472A Authority US United States Prior art keywords portland cement clinker wt containing accordance Prior art date 1992-02-13 Legal status (The legal status is an assumption and is not a legal conclusion.

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EP0726437A1 Oxygen lancing for production of cement

Oxygen (8) is lanced into the main combustion reaction of a cement kiln (2) to increase heat transfer to the clinker bed (3) and to increase clinker production. Oxygen is separately lanced along the floor (7), i.e. the lowest wall of the kiln (2), to delay mixing with the flame to provide deep staging. The deeply staged oxygen flow is adjusted frequently to control emissions and stabilize the

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Cement Clinker Preparation Patents and Patent Applications

Search for Cement Clinker Preparation Patents and Patent Applications (Class 106/693) Filed with the USPTO gehlenite, free lime and periclase, and/or a vitreous phase, and The present invention describes a process for manufacture of high iron hydraulic cement clinker in production of cement and cementation binder for application in

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Cement clinker Wikipedia

Cement clinker is a solid material produced in the manufacture of Portland cement as an intermediary product. Clinker occurs as lumps or nodules, usually 3 millimetres (0.12 in) to 25 millimetres (0.98 in) in diameter. It is produced by sintering (fusing together without melting to the point of liquefaction) limestone and aluminosilicate materials such as clay during the cement kiln stage.

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Cement Production: From Clinker Production to the End Product

Cement Production: From Clinker Production to the End Product Perfectly mixed, accurately fed without pulsation, and precisely weighed 3. Clinker production. Schenck Process’s MULTICOR® K mass-flow feeding system plays the main role in the second cement production stage.

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What is Cement Clinker? Composition, Types & Uses Civil

Clinker is a nodular material produced in the kilning stage during the production of cement and is used as the binder in many cement products. The lumps or nodules of clinker are usually of diameter 3-25 mm and dark grey in color. It is produced by heating limestone and clay to the point of liquefaction at about 1400°C-1500°C in the rotary kiln.

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DEVICE AND SYSTEM FOR PRODUCING CEMENT CLINKER

Oct 07, 2014· In the method according to the invention for producing cement clinker, raw cement meal is preheated in a preheater, the preheated raw cement meal is precalcined in a calciner and the precalcined raw cement meal is burnt in a kiln, fuel and combustion air having an oxygen content of at least 75 mol % being used in the calciner, and the raw cement meal being precalcined in a fluidised

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US Patent for Cement composition and process for producing

[Production of Cement Clinker] The aforementioned cement clinker raw materials were mixed, and the mixed raw materials were burned in an NSP kiln at a maximum temperature of 1200° C. to 1500° C. to produce a cement clinker The temperature of the cement clinker near the outlet of the NSP kiln was 1000° C. to 1500° C.

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US Patent for Clinker, system and method for manufacturing

A cement product is disclosed. The cement product includes clinker defined by a feedstock material and a ladle metallurgical facility slag material derived from a ladle metallurgical facility steel production system. A system and method for manufacturing clinker is also disclosed.

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Manfred Lisberger Inventions, Patents and Patent

Manfred Lisberger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

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Method of production of cement clinker

SUBSTANCE: the invention is pertaining to the methods and the equipment for production of a cement clinker. The method of production of a cement clinker provides for heating of a cement raw mixture in a preheater, calcination in a calcinator, which has the upper and the lower parts, kilning into a clinker in the kiln furnace and chilling in the

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Energy Efficiency Improvement and Cost Saving

Saving Opportunities for Cement Making An ENERGY STAR® Guide for Energy and Plant Managers Energy Efficiency Improvement and Cost Saving Opportunities for Cement Making An ENERGY STAR® Guide for Energy and Plant Managers Ernst Worrell, University of Utrecht U.S. cement and clinker production, 1970 to 2010 .. 4 Figure 3. Simplified

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High free lime in clinker International Cement Review

Nov 01, 2013· High free lime in clinker. Dear All. I am facing problem of very high free lime in clinker upto 4%,the litre weight is 1100 to 1200 but free lime is still high. Previously withthis litre weught i was getting 1.5 to 2% free lime,but now my kiln production has reduced from 155 tph to 140 tph kiln feed.

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patent Cement industry news from Global Cement

Oct 19, 2018· The patent relates to methods for improving the efficiency of grinding materials such as clinker and limestone, using glycerol derived from biofuel production, in combination with various grinding additives. GCP products can help to reduce the carbon footprint of cement and concrete.

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CEMENT RAW MATERIALS International Cement Review

Cement is a manufactured product made by blending different raw materials and firing them at a high temperature in order to achieve precise chemical proportions of lime, silica, alumina and iron in the finished product, known as cement clinker. Cement is therefore

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Cement Patents The Edison Papers

Cement Patents. The following list contains the 49 patents Edison received concerning cement. It is arranged in chronological order by execution date, which is the date on which Edison signed the application and the date in the patenting process that comes closest to

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Quick-setting cement and method of manufacture of products

Quick-setting cement, obtained by joint grinding Portland cement clinker containing highly basic calcium silicate, almaterra calcium free calcium oxide, almaterra calcium free calcium oxide, and regulator of terms, wherein the Portland cement clinker contains a highly basic calcium silicate composition (3,3 3,5) Cao SiO 2, almaterra calc the

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WHITE CEMENT PROPERTIES, MANUFACTURE, PROSPECTS

CaF2) with gypsum, thus allowing white cement clinker with a C3A content of less than 5 wt.% to be produced, which means a sulphate-resistant white cement or a white cement resistant to seawater. In this type of material the main fluorosulphate melt contains molten White cement properties, manufacture, prospects

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