摘要:
An apparatus utilizing an endless blade for splitting hides, textile products and the like. A fixed assembly carries upper and lower cylinders or rollers for feeding the workpiece to the blade. A mobile or movable assembly carries the blade mounted on two spaced pulleys and is adjustable with respect to the rollers in order to change the spacing between the blade edge and the feeding plane between the rollers. Also mounted on the movable assembly is a sharpening device in the form of two grinding wheels which are biased toward the blade edge. A blade positioning mechanism controlled by a photocell sensing the position of the blade edge maintains the blade edge in the desired position relative to the rollers despite erosion of the blade due to sharpening and wear.
摘要:
The invention relates to the use of at least one viscous compound, the viscosity of which is greater than 5 Pa·s−1, to substantially prevent the degradation of a substance sensitive to temperatures of 20° C. to 100° C. and/or pressures of 106 to 107 Pa and/or a relative humidity of 60% to 100%, contained in a powder composition, the powder composition containing particles including: a core containing the sensitive substance and at least one viscous compound as impregnating agent for the sensitive substance and a coating for the core, which contains at least one viscous compound as sticking agent.
摘要:
A pulverisation head of an apparatus includes a motor whose vertical hollow shaft is integrally linked, at its lower end, to a centrifugal ejection disc. The substance to be pulverised, coming from a tank via a proportioning pump, crosses the hollow shaft to be spread in a thin layer on the lower surface of the disc forming the centrifugal ejection face. Elements are designed to vibrate the peripheral edge of the disc and control the pulverisation of the substance. A fan and a distributor produce a treatment gas flow which meets and draws droplets towards a collection zone, solidifying them by drying or freezing. Typically, the substance is a mixture of at least one active ingredient and a microencapsulation constituent. For use to obtain very fine and/or very homogeneous particle size, to manufacture powders for food processing, nutritional, cosmetic, pharmaceutical and fine chemical applications. The head is useful to produce aerosols.
摘要:
A pulverization head of an apparatus includes a motor whose vertical hollow shaft is integrally linked, at its lower end, to a centrifugal ejection disc. The substance to be pulverized, coming from a tank via a proportioning pump, crosses the hollow shaft to be spread in a thin layer on the lower surface of the disc forming the centrifugal ejection face. Elements are designed to vibrate the peripheral edge of the disc and control the pulverization of the substance. A fan and a distributor produce a treatment gas flow which meets and draws droplets towards a collection zone, solidifying them by drying or freezing. Typically, the substance is a mixture of at least one active ingredient and a microencapsulation constituent. For use to obtain very fine and/or very homogeneous particle size, to manufacture powders for food processing, nutritional, cosmetic, pharmaceutical and fine chemical applications. The head is useful to produce aerosols.
摘要:
Method of preparing a non-hygroscopic pulverulent composition, includes a step for the spray drying, without an atomization support, of an aqueous solution containing at least one initially hygroscopic product, having a glass transition temperature ranging from 10° C. to 110° C., and a cryogenic fluid, especially a food-grade cryogenic fluid, or a mixture of cryogenic fluids, particularly chosen from liquid air, nitrogen and carbon dioxide, the aqueous solution being obtained by dissolving the cryogenic fluid in an initial aqueous solution containing the initially hygroscopic product.
摘要:
Method of preparing a non-hygroscopic pulverulent composition, includes a step for the spray drying, without an atomization support, of an aqueous solution containing at least one initially hygroscopic product, having a glass transition temperature ranging from 10° C. to 110° C., and a cryogenic fluid, especially a food-grade cryogenic fluid, or a mixture of cryogenic fluids, particularly chosen from liquid air, nitrogen and carbon dioxide, the aqueous solution being obtained by dissolving the cryogenic fluid in an initial aqueous solution containing the initially hygroscopic product.