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Lightweight expanded clay aggregate (LECA Production Line) or expanded clay (exclay) is a light weight aggregate made by heating clay to around 1,200 °C (2,190 °F) in a rotary kiln. The yielding gases expand the clay by thousands of small bubbles forming during heating producing a …
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Expanded clay aggregate. Lightweight expanded clay aggregate (LECA) or expanded clay (exclay) is a lightweight aggregate made by heating clay to around 1,200 °C (2,190 °F) in a rotary kiln The yielding gases expand the clay by thousands of small bubbles forming during heating producing a honeycomb structure. 1125 Clay Processing
Expanded clay is produced from low-melting clay grades. The quartz content in these is less than 30%. The material acquires porosity in the course of reaction with diesel fuel, fuel oil or iron oxide. They are the ones who expand the baking clay. Without baking, expanded clay would not be hard.
Lightweight Expanded Clay Aggregate Production Line / LECA Line Posts Related to production method of expanded clay » companies producing bentonite clay... Know More. INDUSTRIAL APPLICATIONS OF BENTONITE by. INDUSTRIAL APPLICATIONS OF BENTONITE by production amounted to only a few tons per year clay can be readily exchanged...
The mixture for the production of expanded clay Info ... USSR - Soviet Union Prior art keywords clay amount raw materials expanded clay expanded Prior art date 1973-12-10 Application number SU1976469A Other languages Russian (ru) ... 238000004519 manufacturing process Methods 0.000 title claims description 8;
A method and apparatus for producing expanded clay or expanded shale finished product in a straight-line continuous rotary tube kiln provided with charging and discharge ends at respectively opposite ends of the kiln, the kiln being divided into a preheating zone and an expansion zone following one another in the direction from the charging end to the discharge end, the preheating zone being ...
Method for producing expanded clay take clay from a quarry in clay with a moisture content not exceeding 40%, load the clay into a hopper at a speed of 25 m 3 /h, loosen the clay with the speed of 10-35 m 3 /h, serves clay with speed 15-26 m 3 /h in the drums coarse serves the received raw speeds of 6-10 m 3 /h in a clay mixer, result in compliance with the humidity of the material to the ...
1. Method for production of expanded clay granules, characterised in that the expansion of the clay granules is obtained by heating the latter by means of microwave radiation. 2. Method for production of expanded clay granules according to claim 1, characterised in that the clay granules are dried by a conventional method before being exposed to the microwave radiation which assures their ...
The SUT clay mixtures in various ratios were investigated to find the suitable compositions and heat-treatment (between 1000 and 1250°C) for the production of lightweight aggregates. After firing ...
27-08-2020· Expanded clay aggregate - Wikipedia. Lightweight expanded clay aggregate (LECA) or expanded clay (exclay) is a lightweight aggregate made by heating clay to around 1,200 °C (2,190 °F) in a rotary kiln.The yielding gases expand the clay by thousands of small bubbles forming during heating producing a honeycomb structure.
clay clay granules expansion expanded clay Prior art date 1999-11-10 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.) Granted Application number AU12849/01A Other versions AU770254B2 (en Inventor Nathalie ...
The present invention relates to a method and apparatus for producing expanded clay and expanded shale of the type set forth in my U.S. Pat. No. 4,324,554, where a straight-line continuous rotary tubular kiln is provided having charging and discharge ends, a stationary burner disposed in the vicinity of the discharging end and an additional mantle burner which rotates together with the kiln ...
Lightweight expanded clay aggregate (LECA) or expanded clay (exclay) is a lightweight aggregate made by heating clay to around 1,200 °C (2,190 °F) in a rotary kiln.The yielding gases expand the clay by thousands of small bubbles forming during heating producing a honeycomb structure. LECA has an approximately round or potato shape due to circular movement in the kiln and is available in ...
Lightweight expanded clay aggregate (LECA) or expanded clay (exclay) is a lightweight aggregate made by heating clay to around 1,200 °C (2,190 °F) in a rotary kiln.The yielding gases expand the clay by thousands of small bubbles forming during heating producing a honeycomb structure.
For the production of expanded clay, onlycertain clay rocks. The most suitable are montmorillonite and hydromica clays containing less than 30% quartz. The essence of the production of expanded clay is the preliminary treatment of raw clay, giving raw granules of a certain size, burning them in special furnaces-drums to obtain a specific structure and stage-by-stage cooling.
01-08-2004· This technology allows production of expanded-clay aggregate for lightweight concrete from non-selfbloating clays with predetermined properties (bulk weight within the range 160–850 kg/m 3 and cylinder compressive strength within the range 0.78–14.4 MPa).
FIELD: chemistry. SUBSTANCE: invention relates to production of construction materials, particularly to compositions and a method of preparing mixtures for producing expanded clay. A mixture for producing expanded clay contains, wt %: effervescing clay, organic additives, inorganic additives and water, and the inorganic additive used is electrostatic filter dust obtained when cleaning waste ...
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Flexible method for mix designs (not one optimal mix) – Prefab industry – Variety of components ... ARGEX expanded clay Production LWSCC Manufacture - sourcing LWA's properties & Normative references Typical end uses Concrete LAC/LWAC SCC. 34 ARGEX expanded clay Production LWSCC
This objective is achieved in that the method of producing expanded clay includes an introduction to clay raw materials corrective Supplement herbicide diphenylamide in the amount of 0.5-2 wt.% on the current matter, granulation, drying and firing of the pellets, followed by cooling, and the annealing of the granules is carried out at a temperature of expansion 1070-1150 about C for 10 min.
The essence of the invention: method of producing expanded clay, including an introduction to clay raw materials corrective additives, molding granules, drying, firing and subsequent cooling, as an additive is injected herbicides of the group of symmetric triazine: Simazine, prometryn the propazine, atrazine, terbutryn or mixed preparations on their basis: agelon, campral, citrine quantity ...
The invention relates to the structural materials industry and can be used for producing increased-strength structural expanded clay gravel and lightweight structural concretes based thereon. A method for producing expanded clay gravel comprises feeding partially dried raw granules into a rotary furnace; in consecutive zones of the furnace, subjecting the granules to drying and calcining until ...
The inventive method of producing expanded clay is carried out by crushing clay rocks, adding 6 - 10 wt.% sludge, pre-heated to 80 - 95 o C containing 3 to 30 wt.% water and water consumption, which is determined by the formula: A = X - (Y + 0,01 Cg), where X is the optimal amount of water contained in the clay mixture, and is 16 -20 wt.%; Y - the amount of water in the shale, wt.%;