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US4342554A Production of expanded clay and shale

US4342554A Production of expanded clay and shale Google Patents Production of expanded clay and shale Download PDF Info Publication number US4342554A 238000000034 method Methods 0.000 claims abstract description 16; 238000010438 heat treatment Methods

Production Technology of Expanded Clay Aggregate Gravel

Some problems of production technology of expanded clay aggregate in a rotary kiln are considered with the use of the method of dusting the particles of burning material with refractory, or highmelting, powders. A list of the main units of modernization for the rotary kiln is given.

Rotary Kilns in Expanded Clay Aggregate Production

The production of expanded clay aggregates is typically carried out in a direct-fired kiln, in which the clay and products of combustion are in direct contact with each other. Direct-fired kilns can be configured for co-current or counter-current airflow, but counter-current is generally a

US20020178607A1 Method for making expanded clay pieces

US20020178607A1 US10/141,002 US14100202A US2002178607A1 US 20020178607 A1 US20020178607 A1 US 20020178607A1 US 14100202 A US14100202 A US 14100202A US 2002178607 A1 US2002178607 A1 US 2002178607A1 Authority US United States Prior art keywords clay pieces granules expansion expanded clay Prior art date 1999-11-10 Legal status (The legal

The method of processing the raw granules of expanded clay

Fusible clay for the production of expanded clay usually contains a significant amount of oxides of alkali metals (Na 2 O and K 2 O is from 1 to 4 wt.) and alkaline earth metals (CaO, from 1 to 3.5 wt. and MgO is from 1 to 3.5 wt.). Clay particles have the ability to capture positively charged ions.

Lightweight Expanded Clay Aggregate an overview

A wide variety of the most common methods studied during the period 2015–19 on the production of stoneware floor and roof tiles, porcelain stoneware tile, bricks, and lightweight (clay expanded) aggregates, incorporating various waste materials as partial replacement of the raw materials has been extensively presented.

The manufacture and uses of expanded clay aggregate

• Chineese method ≈Andreasen et Andersen curves • No fixed proportions paste/sand/aggregates SCC = 100% Air = Sand = 40% Cement Filler Water/Adm 0 20 40 60 80 100 ARGEX expanded clay Production LWSCC Manufacture sourcing LWA’s properties & Normative references Typical end uses Concrete LAC/LWAC SCC. 34 ARGEX expanded clay

Hydroton (Expanded Clay Pebbles) Growing Guide Epic

Feb 07, 2019 Hydro Crunch Expanded Clay has uniform pebbles in a 50-liter bag with mostly five-star reviews. Alternatives to Clay Pebbles source. While clay aggregate is a popular medium used in hydroponics, it is far from the only method. Media are often combined and traded like baseball cards for the die-hard fans.

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. LECA has an approximately round or potato shape due to circular movement in the kiln and is available in different sizes and densities. LECA is used to make lightweight concrete products and other uses.

Porosity of expanded clay manufactured with addition of

Aug 02, 2014 高达10%返现 Other technologies that have been developed successfully include using wastes such as fly ash, scrap tire rubber, and sludge from the paper industry in the production of lightweight concrete aggregates [1–3] and expanded clay for structural applications. The use of waste has the advantage of both optimizing the properties of ceramic products

Production Technology of Expanded Clay Aggregate Gravel

Some problems of production technology of expanded clay aggregate in a rotary kiln are considered with the use of the method of dusting the particles of burning material with refractory, or highmelting, powders. A list of the main units of modernization for the rotary kiln is given.

Production of expanded-clay aggregate for lightweight

Aug 01, 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). Concrete with azerit as a filler is at least twice lighter than regular concrete and

Raw material mixture for production of expanded clay aggregate

A raw material mixture for production of expanded clay aggregate contains, wt % by solid phase: montmorillonite clay 52-75, kaolinite clay 15-23, limestone 1-2, technical alumina, sludge of chemical purification of HPP water 7-20. EFFECT: improvement of heat insulating properties due to reduction of density characteristics with stable strength

Hydroton (Expanded Clay Pebbles) Growing Guide Epic

Feb 07, 2019 Hydro Crunch Expanded Clay has uniform pebbles in a 50-liter bag with mostly five-star reviews. Alternatives to Clay Pebbles source. While clay aggregate is a popular medium used in hydroponics, it is far from the only method. Media are often combined and traded like baseball cards for the die-hard fans.

Lightweight Expanded Clay Aggregate (LECA) Production Line

Definition: light expanded clay aggregate or expanded clay aggregate (LECA or ECA), also called ceramic pellet, is one of the most popular lightweight aggregate made by sintering clay in a rotary kiln to about 1200°C. Rotary kiln for sintering clay. Raw materials & applications: there are various types of lightweight expanded clay aggregate

The Do’s and Don’ts of Expanded Clay Pebbles

Apr 29, 2021 Expanded clay pebbles resemble oddly shaped, semi-rounded pieces of clay-colored popcorn. The high-heat popping during the manufacturing process gives the medium its large, airy macro-pores (spaces between each piece of expanded clay), in addition to its micro-pores, which are contained within each piece of expanded clay.

Porosity of expanded clay manufactured with addition of

Aug 02, 2014 Other technologies that have been developed successfully include using wastes such as fly ash, scrap tire rubber, and sludge from the paper industry in the production of lightweight concrete aggregates [1–3] and expanded clay for structural applications. The use of waste has the advantage of both optimizing the properties of ceramic products

Expanded Clay Aggregate Scientific.Net

Abstract: The paper shows the possibility of production of the expanded clay aggregate with the use of electric steel melting slag up to 3.0 % produced by JSC “Oskol Electric Steel Works”. It was determined that at the temperature of 1170 °C the expanded clay aggregate with high strength properties and a high coefficient of swelling is formed.

CLAY BRICKS MANUFACTURING

CLAY BRICKS MANUFACTURING the extrusion method. Brick achieves its color through the minerals in the fired Indian brick kilns expanded their capacity of production from 150 billion in 2015 to 200 billion in 2020, almost 150 percentages in the total world production. It consumes 350 billion tons of clay; employing 10 million

Alternative Hydroponic Substrates Greenhouse Product News

Expanded clay pellets. This man-made product is often called grow rocks and works extremely well as a growing medium. It is made by baking clay in a kiln. The pebbles range in size from 1-18 mm and are inert. Clay pellets are full of tiny air pockets, which give them good drainage.

Life cycle assessment of layers of green roofs ScienceDirect

Mar 01, 2015 Expanded clay, due to its production process is the main contributor to the substrate impact, thus we recommend avoiding the use of it in the substrate. As regards compost, we wanted to emphasize that the impact of its production could be neglected as a potential impact of green roofs if there is a surplus of this organic waste-treatment end

Hydroponics with Hydroton Expanded Clay Balls YouTube

How can these little brown balls replace soil, or a peat-based potting mix? What sort of irrigation strategies work and why? We explain how to get the most o...

Missouri Clay and Shale Missouri Department of Natural

Missouri was the number one producer of refractory clay and Fuller’s earth (cat litter and other absorbents) in the United States in 2011 (latest available data). In 2011, Missouri ranked 9 th in the U.S. for the production of common clay (bricks and cement). Currently, clay is being produced in 15 of Missouri’s 114 counties.

Expanded Clay Aggregate(ECA®) Supplier & Manufacturer India

Expanded Clay Aggregate is 100% inert, high quality, durable lightweight aggregate that has been used over more than half a century in the world. The main characteristics of Expanded Clay is low density combined with high strength. ECA ® is described as “all in one" product due to more characteristics and it provides a huge range of

The manufacture and uses of expanded clay aggregate

• Chineese method ≈Andreasen et Andersen curves • No fixed proportions paste/sand/aggregates SCC = 100% Air = Sand = 40% Cement Filler Water/Adm 0 20 40 60 80 100 ARGEX expanded clay Production LWSCC Manufacture sourcing LWA’s properties & Normative references Typical end uses Concrete LAC/LWAC SCC. 34 ARGEX expanded clay

The application of sewage sludge as an expanding agent in

Sewage sludge can be used as an expanding agent in the production of lightweight expanded clay aggregate (LECA) mass. The addition of sewage sludge increases the total porosity and decreases the bulk density of a sinter. The addition of sewage sludge to a raw material used in the production of LECA

Hydroton (Expanded Clay Pebbles) Growing Guide Epic

Feb 07, 2019 Hydro Crunch Expanded Clay has uniform pebbles in a 50-liter bag with mostly five-star reviews. Alternatives to Clay Pebbles source. While clay aggregate is a popular medium used in hydroponics, it is far from the only method. Media are often combined and traded like baseball cards for the die-hard fans.

Technological complex for expanded clay production

Technological complex for expanded clay production (keramzit production) Optimum powers of plants and workshops on keramzit production according to technological design norms ONTP 11-86, make respectively 200-400 and 100-200 ths.cub.meters per year.

The Do’s and Don’ts of Expanded Clay Pebbles

Apr 29, 2021 Expanded clay pebbles resemble oddly shaped, semi-rounded pieces of clay-colored popcorn. The high-heat popping during the manufacturing process gives the medium its large, airy macro-pores (spaces between each piece of expanded clay), in addition to its micro-pores, which are contained within each piece of expanded clay.

Microstructural Analysis of Iberian Expanded Clay

Oct 03, 2012 For expanded clay aggregates of 1,200 kg/m 3, Faust and Beck (Reference Faust and Beck 1999) observed median diameters of 1.2 μm, similar to those found in this study. Taking the bottleneck effects into account, it is reasonable to conclude that most of the open porosity occurs for pores larger than 0.1 to 1 μm.

Aggregates for Concrete Memphis

Aggregates of expanded shale, clay, slate, and slag (Fig. 5-3) are used to produce struc-tural lightweight concrete with a freshly mixed density ranging from about 1350 to 1850 kg/m. 3 (90 to 120 lb/ft. 3). Other lightweight materials such as pumice, scoria, perlite, vermiculite, and diatomite are used to produce

The Third line of the Biggest LECA Lightweight Aggregate

At the moment LECA taking big steps by constructing fourth line of expanded clay aggregate and one line of lightweight block that will not only make it the biggest expanded clay production in Asia and the Middle East but also in all over the planet. Expanded Clay aggregate is porous ceramic product with a uniform pore structure.

Alternative Hydroponic Substrates Greenhouse Product News

Expanded clay pellets. This man-made product is often called grow rocks and works extremely well as a growing medium. It is made by baking clay in a kiln. The pebbles range in size from 1-18 mm and are inert. Clay pellets are full of tiny air pockets, which give them good drainage.

Manufacturing of Brick

production to fit their particular raw materials and operation. Essentially, brick are produced by mixing ground clay with water, forming the clay into the desired shape, and drying and firing. In ancient times, all molding was performed by hand. However, since the invention

Estimation of water absorbed by expanding clay aggregates

Apr 24, 2012 The estimation of water absorption in aggregates is still one of the major challenges related to the production of structural lightweight aggregate concrete (SLWAC). At present these predictions are only based on common practice and a more soundly based approach is required. Aggregate absorption is mainly affected by its microstructure, surface characteristics, percentage of

Home Leca

To produce expanded clay high temperatures are necessary and the production is therefore energy intensive. Read more. Product. Expanded clay is a well-proven, high quality, efficient and durable lightweight aggregate suitable for a wide range of applicants in the construction sector.

Home ESCSI

Jun 18, 2021 the international trade association for manufacturers of ROTARY KILN-PRODUCED EXPANDED SHALE, CLAY AND SLATE LIGHTWEIGHT AGGREGATE. Product applications. The superior qualities of expanded shale, clay and slate lightweight aggregate are effective and economical in many applications. STRUCTURAL LWC;

Controlled Environment Agriculture for year‐round

An innovative method of growing plants that •Bato buckets / Dutch buckets (with perlite/expanded clay) •Bag culture (with potting mix) •Full production from the start –Lou’s adage: “have sufficient cash flow to account for no crop production in first year and half of optimal in second