patent us olivine refractory bricks for heat storage

    Olivine refractory bricks for heat storage applications

    1981-12-01· An olivine refractory brick having thermal and physical properties suitable for use as a thermal energy storage unit in an electric thermal storage furnace and having excellent thermal shock properties and resistance to spalling, said brick consisting essentially of grains of olivine densely compacted and sintered to provide a fired bulk density within the range of 2.58 to 2.93 grams per cubic

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US4048134A Refractory heat-insulating materials

Lining slabs for prolonged contact with molten metals, e.g. for use in tundishes, are made from a refractory heat-insulating composition comprising by weight: 0 to 1% bentonite clay 0 to 4% cellulosic fibre 4 to 8% synthetic resin binder 0 to 7% refractory fibrous material, and Balance to 100% a mixture of particulate magnesia and particulate olivine, The weight ratio of magnesia : olivine

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Thermal storage brick MANZ; OSCAR E.

1990-03-06· US Patent References: 4303448: Olivine refractory bricks for heat storage applications: 1981-12-01: Palmour, III et al. 501/129: 3860414: USE OF GRAFT COPOLYMERS AS AGGLOMERATION BINDERS: 1975-01-14: Lang et al. 524/420: 3785842: SYNTHETIC AGGREGATES: 1974

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US4343989A Magnesium oxide based heat storage

US4343989A US06/209,692 US20969280A US4343989A US 4343989 A US4343989 A US 4343989A US 20969280 A US20969280 A US 20969280A US 4343989 A US4343989 A US 4343989A Authority US United States Prior art keywords magnesium oxide heat storage storage material oxide based heat Prior art date 1980-11-24 Legal status (The legal status is an assumption and is not a legal conclusion.

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Heat storage means NUTTLE; DAVID A.

1985-03-26· US Patent References: 4303448: Olivine refractory bricks for heat storage applications: 1981-12-01: Palmour et al. 501/129: 4277357: Heat or cold storage composition containing a hydrated hydraulic cement: 1981-07-07: Boardman: An improved heat storage means in the general form of a block composed of,

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EP3224221A1 A refractory brick, its composition, and

The present disclosure relates generally to a composition for a refractory article such as a refractory brick, having enhanced chemical infiltration resistance, anti-hydration, and low heat conductivity properties. The refractory brick composition comprises olivine 40-90 %, elastifier 5-35 %, silicon carbide 1 15 %, and magnesia to make up to 100% by weight of dry admixture.

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US3288617A Refractory brick of burnt magnesia and

US3288617A US36186764A US3288617A US 3288617 A US3288617 A US 3288617A US 36186764 A US36186764 A US 36186764A US 3288617 A US3288617 A US 3288617A Authority US United States Prior art keywords percent magnesia lime burnt refractory brick Prior art date 1963-05-31 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal

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Sintering Behaviour of Waste Olivine and Olivine/Alumina

The sintering behaviour of several green compacts made with olivine or olivine/alumina powder blends has been examined. To this goal, powders were attrition milled, uniaxially pressed into specimens and air sintered at temperatures ranging from 1100 to 1300 °C.

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US2418026A Refractory fused forsterite Google Patents

US2418026A US571029A US57102945A US2418026A US 2418026 A US2418026 A US 2418026A US 571029 A US571029 A US 571029A US 57102945 A US57102945 A US 57102945A US 2418026 A US2418026 A US 2418026A Authority US United States Prior art keywords magnesium refractory forsterite iron silicon Prior art date 1944-01-24 Legal status (The legal status is an assumption and is

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US Patent for Refractory castables with hydrophobic

Hydrophobic aggregates for use in refractory castables and gunning mixtures and methods of their preparation. The aggregates here are formed by crushing insulating fire brick and coating the resulting particles with a hydrophobic component. The hydrophobic component may be a polydimethylsiloxane having a terminal silanol group. As a result of the coating process, the coated aggregate has very

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Olivine: Foundry, Steel making, Industry GritSablare

With an initial temperature of 1450ºC and fusion at 1665-1743ºC, olivine is well suited as a refractory. Olivine sand is used as a raw material for bonded forsterite bricks, for storage heaters and refractory monolithics and mortars. Further, in furnace construction, olivine has a major advantage as it does not react chemically with steel.

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College of Engineering Patents Nc State University

2018-04-04· In 1981 he received a patent for Olivine refractory bricks for heat storage applications. The bricks have thermal and physical properties suitable for use as a thermal energy storage unit in an electric thermal storage furnace and are characterized by having excellent thermal shock properties and resistance to spalling.

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Process for the production of a ceramic heat-retaining

1981-05-05· The invention relates to a process for the production of a ceramic heat-retaining brick based on olivine by shaping, drying and optionally burning a mixture of granular material and a binding agent. It is known to use ceramic heat-retaining bricks based on fire-clay, basalt, olivine, chromite, iron ore and sintered magnesite in electric storage heating apparatus.

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Sintering behaviour of olivine–ceria blends ScienceDirect

Olivine and ceria oxide powders blends were wet attrition milled, dried, sieved, pressed into specimens and fired at several temperatures in the range of 1000–1300 °C for 1 h. The sintering experiments showed that 1. the addition of CeO 2 to olivine promotes its sintering; 2.

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Heat retaining Magnetite for sustainable energy storage

Sustainable energy storage with Magnetite. Sustainable and efficient use of energy is a very actual and important topic. The mineral magnetite (Fe 3 0 4) contributes to this challenge as it can store energy in a very sustainable way. Don’t just take our word for it; you can read a detailed study on natural heat-retaining materials and their heat storage

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Clay Fire Low Creep Brick 45% Al2o3 Lower Price

2020-06-24· Fire Clay Brick China, China Fire Clay Brick China Low Creep Brick Suppliers, Manufacturer, Distributor Fire Clay Bricks RS Refractory Online Sale Hot Sale Low Creep High Alumina Refractory Bricks Used in Low creep fireclay brick Low Creep Clay Fire Brick Rongsheng Refractory Fire Clay Brick China Suppliers, all Quality Fire Clay Low Price Fireclay Brick, Wholesale Suppliers

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Possible use of waste olivine powders from a foundry

The present basic research aims to evaluate the possible recycling of olivine, a by-product of a foundry process, into the ceramic industry. With this goal in mind, olivine powders (O) were milled alone or blended with 20, 40, 60 and 80 wt% of a high grade kaolin (K) by attrition milling to obtain powders of different composition.Samples made with K alone were also prepared as blank composition.

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Refractory molded brick

2017-09-20· Zircon refractory molded brick, belongs to a kind of acidic material, is a natural zircon sand (zrsio2) product is prepared.Zirconium refractory molded brick is different from the silicon aluminum refractory brick and carbon brick, the slag resistance and thermal expansion rate is low, the thermal conductivity decreases with the increase of temperature, high load softening temperature,

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Storage heater bricks British Steel Corporation

1977-02-08· Storage heater bricks . United States Patent 4006734 After firing the ferrite, ceramic or refractory heat storage medium is optionally ground to a particle size enabling the particles when moistened to be shaped to the required final form, for example bricks,

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Introduction Nc State University

2018-04-04· Research at NC State has resulted in many interesting developments -- from Hayne Palmour III's work on olivine refractory bricks for heat storage applications to Mansour Mohamed's work on a multi-axial, three-dimensional weaving process originally used in the Mars Mission program.

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