Abstract:
The present invention relates to a method for treating opaque fluids, comprising the steps of placing a treatment unit inside a volume of fluid to be treated, which treatment unit comprises a UV radiation member capable of emitting UV radiation, 5 radiating said volume of fluid with UV radiation, whereby said UV radiation is capable of creating radicals in said fluid, which radicals react with matter in the fluid, thereby treating it.
Abstract:
The invention relates to a method for purifying coolant-lubricant oils. Said oils continuously circulate in metal-working installations and are purified by a low-pressure filter assembly (13). The purification takes place in the main stream. Purification by means of membrane filtration takes place in the secondary stream. The method has a high filtration capacity and ensures an optimal purification of the liquid.
Abstract:
The invention relates to a system for preparing cooling lubricants (''milks''), especially their emulsions, with a pump (1) to convey the milk from the tank (2) of a machine tool into a separator (3) of the preparation system, in which there is an equalising container (4) between the pump (1) and the separator (3) with an overflow (5) via which the milk is taken to the separator (3) and whose overflow edge lies above the highest inlet point of the separator.
Abstract:
Use of polymeric two-phase systems for removing microbial contaminants from industrial lubricating agents, a method of purifying microbial contaminated lubricating agents by mixing the lubricating agent with a polymeric two-phase system, allowing the mixture to separate so as to form a top-phase containing the lubricating agent and a bottom-phase containing at least part of the microbial contaminants, and separating at least a major part of the microbially enriched bottom-phase from the top-phase, a plant for microbial purification of lubricating agents comprising a mixing tank (4) having means (7, 8) for feeding microbially contaminated lubricating agent (S) to the mixing tank, means (13) for feeding a polymeric two-phase system to the mixing tank, a stirrer (5) in the mixing tank, means (9, 10) for feeding the mixture to a separation device (6) for separating the mixture into a top-phase (T) containing lubricating agents, and a bottom-phase (B) containing microbial contaminants, and means (18) for recovering the top-phase of the two-phase system, and a lubricating agent concentrate, in which at least part of the lubricating agent at the same timeforms part of the top-phase component of the polymeric two-phase system.
Abstract:
The installation for the purification and separation of oily sand (2) comprises an injection nozzle device wherein the oil is separated from the sand, as well as a separation device wherein the mixture of oil, water and sand is separated. The separation device comprises a separation container (18) with a settling chamber (20) for the solid constituents, an oil separation chamber (24) to separate the oil from the water, an oil collection chamber (28) and a water collection chamber (34). The sand is evacuated from the settling chamber (20) by a screw (50). The sand and the oil come out of the installation separately.
Abstract:
The invention relates to a method for biocidal treatment of a cooling lubricant, particularly a water-based cooling lubricant, particularly wherein the cooling lubricant can be provided in a circuit within a machine for lubricating and/or cooling during a machining step, further developed and designed such that, with regard to a simple, safe, permanent, and harmless preservation of cooling lubricants, a biocide or biocide mixture within a formula is added to the cooling lubricant, emitting the biocide content present therein under delay into the cooling lubricant. A biocide formulation is further proposed, comprising a water-soluble and/or dispersible carrier substance and a biocide, or enclosing a biocide or a biocide solution in a semi permeable and/or merely somewhat permeable membrane or film. A ready-to-use product for biocidal treatment of a cooling lubricant is ultimately proposed, comprising a formulation in which a biocide or a biocide solution is present in encapsulated form, and comprising a bag receiving the formulation and made of filter material.
Abstract:
Zur Behandlung des einem Zerspanungsprozeß zugeführten Kühlschmierstoffes wird flüssiger Kühlschmierstoff über einen Umlaufstrom geführt und bei der Zerspanung entstehendes Aerosol über einen Abluftstrom abgesaugt. Der Umlaufstrom und der Abluftstrom werden einander ausgesetzt indem der Umlaufstrom und der Abluftstrom zu einem Kühlschmierstoff-Luft-Gemisch miteinander vermengt werden. Eine Vorrichtung zur Behandlung des einer Zerspanungsanlage zugeführten Kühlschmierstoffes weist ein Umlaufsystem zum Zuführen flüssigen Kühlschmierstoffes auf und einen Abzug zum Absaugen bei der Zerspanung entstehenden Aerosols. Das Umlaufsystem und der Abzug sind über wenigstens einen Reaktionsraum miteinander verbunden.
Abstract:
The invention relates to a method for separating a machining suspension, which accumulates for example during the mechanical machining of silicon, quartz or ceramic, from a cutting fluid. Abrasive grains, in addition to attrition material from both the machined material and the machining equipment are dispersed in said cutting fluid. According to said method, the suspension is separated by wet-sizing, whereby the liquid used for said wet-sizing process is selected so that it can be mixed with the cutting fluid used and that the resultant mixture forms a stable suspension, in particular with the attrition material from the machined material. The method enables the abrasive grains to be separated cleanly from the attrition material and the cutting fluid.
Abstract:
According to the inventive method for demulsifying an oil-containing aqueous emulsion, said oil-containing aqueous emulsion is subjected to an increased pressure and an increased temperature for a certain length of time. Carbon dioxide is added, and the emulsion is then released. The demulsification takes place in an autoclave, an upwards travelling gas bubble stream of carbon dioxide being produced by an abrupt release of pressure. An oil-rich phase is separated off by said gas bubble stream and the remaining preclarified oil-stripped emulsion is then separated in a separator. The resulting aqueous fraction is separated into a retentate and water by means of ultrafiltration. A device for carrying out the inventive method has an autoclave, a separator and an ultrafiltration device. A device for feeding in fine bubbles of carbon dioxide is located in the base area of the autoclave.
Abstract:
A process is disclosed for cleaving spent emulsions such as cooling lubricants by means of carbon dioxide under pressure, and if necessary, heat in an economic and environment-friendly manner. The emulsion of cooling lubricant is saturated under pressure with carbon dioxide and is heated and/or cooled until cleavage is achieved. Above the cleavage temperature, a floating, water-poor oil phase quickly forms above an oil-poor aqueous phase.