摘要:
The present invention relates to a process for preparing a granular ceramic mixture, wherein the process comprises the step of contacting fluid bed combustion fly ash with: (a) a calcium source selected from calcium carbonate, calcium chloride, calcium hydroxide, calcium oxide, calcium sulfate, and any combination thereof; (b) clay; (c) optionally, feldspar; and (d) optionally, additional ingredients, to form the granular ceramic mixture.
摘要:
The present invention relates to a process for preparing a granular ceramic mixture, wherein the process comprises the step of contacting fluid bed combustion fly ash with silica glass, clay, optionally feldspar, and optionally other ingredients, to form the granular ceramic mixture.
摘要:
The invention relates to a process for the preparation of a ceramic article containing domestic sludge, the ceramic article, and treated domestic sludge suitable as raw material for the production of the ceramic article. The domestic sludge (which definition excludes digestate that is obtained from a Municipal Solid Waste (MSW) process comprising liquefaction of the organic fraction of MSW by addition of one or more enzymes) has been pretreated by a process comprising the steps of drying the domestic sludge to a moisture content of at most 10% by weight, resulting in dried sludge, and heating the dried sludge at 450 - 650°C and reducing the content of organic matter to less than 5% by weight. The invention furthermore relates to a process wherein the pretreatment comprises using the domestic sludge as a food source for larvae.
摘要:
A man-made aggregate or a masonry unit may be made by adding impound residues and mixing the impound residues with other residues, ceramic materials and/or additives to form an admixture. The impound residues may also be mixed with synthetic or organic polymers. The impound residues may not conform to the requirements of ASTM C618-15. The admixture may be subjected to a thermal process that allows for a ceramic conversion of the ceramic components of the mix used.
摘要:
본 발명은 캐스트 바잘트 제품 제조공정 및 그 제조시스템에 관한 것으로서, 본 발명의 캐스트 바잘트 제품 제조공정은, 페로니켈 슬래그, 제강 슬래그, 석탄재로 이루어진 원료를 취합하여 일정 배합 비율로 혼합하는 원료처리공정(S10)과; 혼합 원료를 용해로에 장입하여 1450~1500℃로 승온해 완전히 용해된 상태의 용융물을 수선하고, 턴디쉬를 통해 1100~1250℃의 온도에서 출탕하는 용해공정(S20)과; 용융물을 몰드 두께가 10~15mm로 조성된 타일주조기에 주입하여 200~400℃로 예열한 후 주입된 용융물을 압착하거나, 또는 몰드 두께가 9~30mm로 조성되고 일정 속도로 회전중인 원심주조기에 주입하여 350~500℃로 예열한 후 주입된 용융물을 회전시켜, 타일 또는 튜브 형상의 성형물을 취출하는 주조공정(S30)과; 열처리로의 대차예열구간에서 700~750℃로 예열된 대차에 상기 성형물을 장입하고, 열처리구간에서 710~910℃로 승온하여 성형물을 열처리한 후, 냉각구간으로 이동해 상온에서 16~24시간 동안 자연 냉각하여 50℃ 이하에서 최종 바잘트 제품을 배출하는 열처리공정(S40)을 포함하여 구성됨에 따라 철강 및 화력발전의 부산물을 원료로 하여 고품질의 바잘트 제품을 효율적으로 제조하도록 하는 이점이 있다.
摘要:
La présente invention concerne un procédé de fabrication d'un élément solide en matériau de type céramique, apte à être utilisé notamment pour le stockage de la chaleur, selon lequel :- on réalise un mélange de base sous forme de poudre comprenant les composés suivants : SiO 2 , AI 2 O 3 , TiO 2 , Fe 2 O 3 , CaO, MgO, Na 2 O et K 2 O; - on ajoute au moins un liquide; - on met en forme le mélange obtenu après ajout de liquide à former un élément cru, solide; - on fait éventuellement sécher ledit élément cru obtenu; - on soumet ledit élément cru éventuellement séché à une température de cuisson sensiblement égale ou supérieure à 1110°c et sensiblement égale ou inférieure à 1200°C de manière à consolider ledit élément; et - on laisse ledit élément cuit refroidir jusqu'à la température ambiante. De manière caractéristique, selon l'invention, on réalise ledit mélange de base en mélangeant des cendres volantes de centrale thermique à charbon, des cendres de foyer de centrale thermique à charbon et de l'argile.
摘要翻译:本发明涉及一种能够特别用于储热的由陶瓷材料制成的固体元件的制造方法,其中: - 制备粉末形式的基础混合物,其包含以下化合物:SiO 2,Al 2 O 3, TiO 2,Fe 2 O 3,CaO,MgO,Na 2 O和K 2 O; - 加入至少一种液体; 所得混合物在加入液体后成型,形成固体绿色元素; 所得绿色元素任选地干燥; - 所述任选干燥的绿色元件经受基本上等于或大于1110℃且基本上等于或小于1200℃的烧制温度,以固结所述元件; 并且 - 将所述烧制的元件放置冷却至环境温度。 特征地,根据本发明,所述基础混合物是通过混合来自燃煤电厂的飞灰,来自燃煤发电厂的炉灰和粘土来生产的。
摘要:
The present invention relates to a process and apparatus to cast and form slag directly from the molten state into crystalline or amorphous products suitable for use as decorative and structural building and construction materials. Molten slag and additives are refined at high temperature in a treatment furnace for a period of hours. The eventual entrapped gas content is controlled using a variety of methods, such as vacuum pressures and bottom stirring with inert gas. The molten slag is cast directly into moulds, and these moulds form the slag into any shape desired. The formed products are immediately introduced into a heat treatment furnace at temperatures at or above the glass transition temperature (GGT) for the case of crystalline products, or just below the GGT for amorphous products. The product is thermally cycled over a period of hours to relieve thermal stresses during cooling to ambient temperatures. If desired, the product can be coated using enamel or glaze and cured in another furnace, or metal plated.
摘要:
The present invention relates to a process for making a refractory article, the process comprises the steps of: (a) preparing a particulate refractory mixture by: (I) obtaining coal combustion fly ash having a bimodal particle size distribution such that: (i) the smaller peak is in the range of from greater than 32μm to 75μm; and (ii) the larger peak is in the range of from greater than 90μm to 250μm; and (II) contacting the coal combustion fly ash with binder and/or water, wherein the particulate refractory mixture comprises: (i) from 90wt% to 99wt% coal combustion fly ash (I); and (ii) from 1wt% to 10wt% binder and/or water (II); (b) optionally, contacting the particulate refractory mixture to water; (c) pressing the particulate refractory mixture to form a green article; (d) optionally, subjecting the green article to an initial drying step; (e) subjecting the green article to a firing step in a kiln to form a hot article; and (f) cooling the hot article to form a refractory article.
摘要:
The present invention relates to a process for preparing a granular ceramic mixture, wherein the process comprises the steps of: (a) milling fluid bed combustion fly ash to obtain milled fluid bed combustion fly ash; (b) milling clay to obtain milled clay; (c) contacting together: (i) the milled fluid bed combustion fly ash obtained in step (a); (ii) the milled clay obtained in step (b); (iii) optionally, feldspar, and (iv) optionally, other ingredients, to form the granular ceramic mixture, wherein step (a) and step (b) are carried out separate milling steps.