摘要:
A process for the coloring of concrete comprises an automatic programmable plant in which, from some microbatchers (2), the batches of coloring products are weighed with an electronic balance (5) which supports a conveyor belt (3) used to discharge said batches in a container (6) with mixer (7) with motor (8). In the container (6) the batches of colorants are prediluted in water then discharged in the concrete mixers in which the concrete mixed with the necessary aggregates is already present. A second batch of water, useful to complete the final mix of colored concrete, is subsequently discharged in the container (6), along the drain valve (12), the suction pump (13) and the channel (11) with the main object of washing the plant and preparing it for the following mixing operations, possibly different as regards batches and/or components.
摘要:
The system of the invention is equipped with a modified sulfur production tank (3) wherein molten sulfur from a molten sulfur tank (1) is mixed with a sulfur modifier from a sulfur modifier tank (2) to produce a modified sulfur, while the contents held therein are heated to a prescribed temperature or above; a modified sulfur intermediate material tank (5) wherein the modified sulfur from the tank (3) is mixed with a fine aggregate from a fine aggregate hot bin (4) to form a modified sulfur intermediate material, while the contents held therein is heated to a prescribed temperature or above; a kneader (7) wherein the modified sulfur intermediate material from the tank (5) and a coarse aggregate from a coarse aggregate hot bin (6) are kneaded together, while the kneaded material held therein is heated to a prescribed temperature or above; and a forming unit (8) wherein the kneaded material from the kneader (7) is stored and heated to a prescribed temperature or above, while the kneaded material is metered, poured to a mold (36), and solidified therein. The system makes it possible to give solid modified sulfur products which can be stored as nondangerous (unignitable or flame-retardant) substance and are easy of transportation.
摘要:
The invention provides a method for working up grains of anorganic rest materials, such as furnace or blast-furnace slags, fly ashes, ashes, cinders and crushed stone, brick or concrete, by covering the grains with a sticking material, such as resinous products, binding agents for paints, prepolymers, waterglass, or bituminous products, adhering particles of for instance sand, clay, gypsum, chark, lime, slag, ashes, fly ashes, waste rubber or cement, and binding the grains by means of a binding composition containing gypsum, plaster of Paris, lime, plaster, waterglass, settable silicates, cement, fibers, fly ashes or components to form natural or synthetic polymers which may be elastical or not, and articles made by the method. A compacting operation may be carried out by bringing the mixture into the mould and urging cores into the mixture.
摘要:
A binder composition substantially comprising between 68.7 and 93% by weight cement, between 0 and 20% by weight additional silicate bearing material, and between 4 and 20% by weight gypsum. Preferably the binder composition substantially comprises between 68.7 and 88.7% by weight cement, between 0 and 15% additional silicate bearing material, and between 4 and 20% by weight gypsum.
摘要:
A method of preparing and administering grout (G) for injection into multiple or large diameter boreholes in rock or soil, whereby a batch of grout having a predetermined composition is prepared by controlled addition of predetermined quantities of ingredients, such as water, cement and additives, from a respective supply (2-5) to two or more mixers (6A-6N) for mixing therein, a prepared grout quantity is detected by positive weighing of the grout prepared in a mixer and prepared grout is then fed to an agitator (7) from which grout is pumped on demand to injection equipment (8) for injection into boreholes. The method includes a continuous detection of the output quantity of grout from the agitator and thereby of the grout supplied to the injection equipment by negative weighing, i.e. weighing of remaining grout in the agitator to thereby enable calculation of a mass flow rate, e.g. the amount of grout withdrawn from the agitator in a given time and thereby of the required total mixer capacity for a specific batch. An apparatus for performing the method is also provided.
摘要:
A reformed sulfur solidified substance producing system of the present invention includes a reformed sulfur producing tank 3 which receives and mixes molten sulfur from a molten sulfur tank 1 and sulfur reforming agent from a sulfur reforming agent tank 2 to thereby produce reformed sulfur, and at the same time, which heats the inside accommodated substance to a predetermined temperature or higher, a reformed sulfur intermediate material tank 5 which receives and mixes reformed sulfur from the reformed sulfur producing tank 3 and a fine aggregate from a fine aggregate hot bin 4 to thereby produce reformed sulfur intermediate material, and at the same time, which heats an inside accommodated substance to a predetermined temperature or higher, a mulling device 7 which receives and mulls reformed sulfur intermediate material from the reformed sulfur intermediate material tank 5 and a coarse aggregate from a coarse aggregate hot bin 6, and further, heats an inside mulled substance to a predetermined temperature or higher, and a pouring device 8 which receives and stores the raw material mulled by the mulling device 7 and heats the same to a predetermined temperature or higher, and further, measures the inside raw material and pours the same into a mold form 36. With this, it is possible to produce a reformed sulfur solidified substance which can be handled as a non-dangerous substance (here, the non-dangerous substance is a substance which does not have ignitability or an incombustible substance), and which can be easily transferred.
摘要:
This installation is characterised in that it comprises means for inserting a magnetic card, a smart card or any other data medium, into a processing terminal ensuring: the display of choices offered to the client, in terms of the final product as well as in terms of packaging, amount and time of use; selection of the choices made by the client(products, packaging, amount, time of use); supply in appropriate amounts of the different ingredients required according to the product, the amount and the time of use selected by the client; mixture of the supplied ingredients; packaging of the resulting product, according to the selection made by the client; getting it ready for delivery; invoicing of the delivered product.
摘要:
Process and apparatus for the preparation of concrete mortar and other mortar and similar mixtures at the work floor by means of a conveyable apparatus starting from separatedly stored aggregates and binder, wherein the materials are so dosed that the binder is kept separate from water and moist aggregate until the raw materials meet in the mixing drum, the water dosing taking place independently therefrom in the mixing drum. The dosing step and the mixing step are completely separated. An apparatus for this process provided with at least two dosing screws (6) which extend in the mixing drum (8) without being fixed therewith, is indicated in figure 2.
摘要:
Provided is a method for manufacturing a ceramic formed body enabling the manufacturing of a ceramic formed body having a controlled product shape, such as roundness, by keeping the torque applied to the extrusion machine stable and low, using a forming raw material having well-balanced fluidity and shape-retaining property. A manufacturing method 1 includes: a dry mixing step S 1 of dry mixing a raw material 3 by batch processing; a wet mixing step S2 of adding liquid 5 to a dry mixture 4 obtained at the dry mixing step S1, the liquid including at least one type of water, surfactant, lubricant and plasticizer, while wet mixing; a kneading step S3 of kneading a wet mixture 6 obtained at the wet mixing step S2; and a forming step S4 of extruding a kneaded mixture (forming raw material) obtained at the kneading step S3 to make a ceramic formed body 2. In the kneading step S3, the liquid 5 is further added during kneading of the wet mixture 6.