摘要:
The present invention relates to a novel composition which is useful for forming construction blocks and encapsulating hazardous materials, a process for producing blocks and encapsulating the material, and blocks made of the material. This composition is a mixture of klin dust or volcanic fly ash and aggregate. The process comprises the steps of (a) blending a dry mixture comprising the kiln dust or volcanic fly ash mixture with water; (b) transferring the blended mixture into a compression zone and (c) compressing the blended mixture in the compression zone to form a brick of the desired size.
摘要:
The present invention relates to a novel composition which is useful for forming construction blocks and encapsulating hazardous materials, a process for producing blocks and encapsulating the material, and blocks made of the material. This composition is a mixture of pozzoulanic fly ash and bottom ash. The weight ratio of fly ash:bottom ash is preferably in the range 80:20% by weight to 20:80% by weight. The process comprises the steps of (a) blending a dry mixture comprising the ash mixture with water; (b) transferring the blended mixture into a compression zone and (c) compressing the blended mixture in the compression zone to form a brick of the desired size.
摘要:
The present invention relates to a novel composition which is useful for forming construction blocks and encapsulating hazardous materials, a process for producing blocks and encapsulating the material, and blocks made of the material. This composition is a mixture of pozzoulanic fly ash and bottom ash. The weight ratio of fly ash:bottom ash is preferably in the range 80:20% by weight to 20:80% by weight. The process comprises the steps of (a) blending a dry mixture comprising the ash mixture with water; (b) transferring the blended mixture into a compression zone and (c) compressing the blended mixture in the compression zone to form a brick of the desired size.
摘要:
A process for treating incinerable waste comprises grinding the incinerable waste into small particle size, delivering the ground incinerable waste by means of a carrying gas to the lower part of a molten silica bath and pouring said molten silica containing said waste into a container in order to form a solidifying mass. The process is used to treat incinerable waste comprising organic substances and mineral substances containing radionuclides.
摘要:
A metal oxide ceramic composite powder has crystals of a reacted and precipitated metal oxide distributed on fine particles of a ceramic material. The metal oxide is derived from an aqueous solution of metal chloride, which in the presence of a magnetic field, forms a complex ion solution. The complex ion may comprise a proportional blend of metallic and semi-metallic elements to produce specific properties. The complex ion is reacted and precipitated with an alkaline material to deposit a high purity metal oxide on the ceramic material. Each ceramic particle thus has a uniform coating of a high purity metal oxide deposited thereon.
摘要:
A method for making gypsum wall board in which during the production of the board pressure is applied to a portion or all of the board surface to reshape, compress and densify the gypsum core to change the shape or contour the face surface of the gypsum board. The pressure must be applied in a systematic fashion to avoid creating lateral shifting or shear stresses in the gypsum core or between the core and paper surface to avoid destroying the paper to gypsum core band. The method can be used to product a cross taper at the cut ends of the board, to produce a decoratively shaped board surface and to densify the entire board core for special gypsum board applications.
摘要:
A waste treatment furnace comprises a crucible equipped with heating means, a waste intake duct opening into the bottom of the crucible, a duct for removing matter from a bath opening into the crucible at a level above the level of the opening of the waste intake duct, the upper part of the furnace defining a chamber which communicates at the top with a duct for the effluent gases, an inlet ramp for a flushing gas opening into the combustion chamber.
摘要:
Disclosed is a ferrite-ceramic composite powder consisting of fine particles of a ceramic material having a ferrite coating firmly bonded to the surface thereof. The ferrite-ceramic composite powder is manufactured by the steps of immersing pellets of iron in an aqueous solution of ferric chloride in the presence of a magnetic field thereby turning the ferric chloride solution into an aqueous solution of a complex salt, mixing the complex salt solution with an aqueous solution of ferric chloride containing many fine particles of a ceramic material and agitating the mixture to obtain a composite aqueous solution, mixing an aqueous solution of caustic soda with the composite aqueous solution and agitating the mixture to cause deposition of crystals of a ferrite on the surface of the fine ceramic particles, rinsing the particles, and drying the particles.
摘要:
A lightweight soundproofing, insulation and fireproofing material and method is disclosed. A dry composition is provided which includes 60-80% by weight of an inorganic lightweight nonflammable fibrous material, 16.67-36.67% by weight of an organic lightweight normally-flammable fibrous material, and 3.33-10% by weight of a refracted clay material. The non-flammable fibrous material is pulled apart to provide a high temperature loose fiber material, the normally-flammable fibrous material is shredded, and the refracted clay material is embedded in the normally-flammable fibrous material after shredding to reduce the flammability thereof. Thereafter, the nonflammable fibrous material is mixed with the normally-flammable fibrous material to complete the dry composition. A liquid adhesive is provided which includes liquid sodium silicate having a ratio of silicon dioxide to sodium oxide that is greater than 3.22:1, the liquid sodium silicate in the form of a solution of about 50% water is mixed with water in a ratio of approximately 1:1, and a surfactant can be added to the liquid sodium silicate to act as a wetting agent for application and flexibility purposes. With these constituent components, the liquid adhesive is used with the dry composition at the rate of approximately 55 gallons of liquid adhesive for each 300 lbs. of dry composition.
摘要:
A cover for use in connection with an engine, comprises a layer formed of fibrous composite containing fiber material, and synthetic rubber and its cross linking agent, the fibrous composite layer being impregnated with rubber material, thereby greatly improving the noise reduction effect of the cover.