Abstract: A method for producing resin particles, including ejecting a liquid containing at least a resin in the form of droplets from a droplet ejecting unit having a plurality of holes provided in a part of a flow channel for feeding the liquid containing at least a resin, and drying and solidifying the ejected droplets so as to obtain the resin particles, while the ejected droplets are transported by a primary transport air flow flowing in the direction in which the droplets are ejected, wherein the ejected droplets are further transported by a secondary transport air flow which transports the ejected droplets in a different direction from a direction in which the primary transport air flow flows, and wherein a smaller angle of angles formed between a velocity vector of the primary transport air flow and a velocity vector of the secondary transport air flow is less than 120 degrees.

Abstract: A process for producing dispersion powders by spray drying of aqueous polymer dispersions and addition of antiblocking agents in a rotary atomization dryer, wherein the antiblocking agent is conveyed by delivery air, wholly or partly, into an annular gap which is formed by a moulding arranged concentrically around the housing of the rotary atomizer, and which ends at a distance above the upper edge of the atomizer plate of the rotary atomizer.

Abstract: The invention relates to a method for removing water from a mixture containing at least one compound having at least one group reactive towards isocyanate and containing water, the mixture being applied to the surface of a rotating body A, the mixture flowing over the surface of the rotating body A to an outer region of the surface of the rotating body A and water evaporating from the mixture. In particular, this method is suitable for removing water from alcohols and amines.

Abstract: A substrate processing method comprises the step of subjecting a substrate to drying processing in at least one of a processing section and an interface, wherein the step of subjecting the substrate to the drying processing comprises the steps of: rotating the substrate at a first rotational speed around an axis perpendicular to the substrate, while holding the substrate horizontally, forming a liquid layer on the substrate in a state where the substrate is rotated at the first rotational speed, gradually and continuously increasing the rotational speed of the substrate to a second rotational speed after the formation of the liquid layer, and starting discharging a gas to the liquid layer on the substrate while the substrate is rotated at the second rotational speed.

Abstract: A screen assembly for a shale shaker comprising a panel (500) and a support structure (600), the panel (500) having an area provided with a multiplicity of apertures and at least one layer of screening material arranged over the multiplicity of apertures, wherein said panel (500) is removable from said support structure (600).

Abstract: The present invention refers to a process for drying solid organic substances in aqueous phase including the steps of: feeding a continuous flow of such organic substances having a water content=50% by weight into a turbodrier having a cylindrical tubular body with horizontal axis, equipped with inlet and outlet openings, a heating jacket for bring the inner wall of the tubular body to a predetermined temperature, a bladed rotor extending inside the cylindrical tubular body (1) where it is made to rotate at speeds between 15 and 40 m/s, so as to disperse the continuous flow of organic substances into a flow of particles of organic substances; centrifuging the particles of organic substances against the inner wall of the turbodrier heated to a temperature above 130° C.

Abstract: After rinsing, a liquid mixture (IPA+DIW) is supplied to a substrate surface while rotating a substrate at a first rotating velocity which is relatively high to thereby replace the rinsing liquid adhering to the substrate surface with the liquid mixture. In this way, the rinsing liquid adhering to the gaps between the patterns formed on the substrate surface is replaced with the liquid mixture. Subsequently, DIW is supplied to the substrate surface in a condition that the rotation of the substrate is stopped or that the substrate is rotated at a second rotating velocity which is relatively low to thereby form a puddle-like liquid layer with DIW. In this way, the liquid mixture of the surface layer part is removed from the substrate surface while leaving almost all the liquid mixture adhering to the gaps between the patterns. After that, the liquid layer is removed from the substrate surface to thereby dry the substrate surface.

Abstract: The present invention provides a process for preparing vinylpyrrolidone polymer powder, which has high bulk density and favorable powder flowability and can be handled with ease. Specifically, the present invention relates to a process for preparing vinylpyrrolidone polymer powder, which comprises spraying an aqueous solution of a vinylpyrrolidone polymer into a drying tower using a disc atomizer and then drying.

Abstract: In order to create a solid-bow centrifuge for mechanical drainage and thermal drying of sludges, in which the possibility of clumping or of bake-on of the finely dispersed thick matter spun off from the thick matter outlet openings is minimized or prevented, according to the invention it is proposed to provide in the flight path of the spun off thick matter, a baffle cone surrounding the thick matter outlet openings at a distance and which rotates at a high circumferential velocity, that is, preferably it rotates together with the basket shell, and whose inner, ring-shaped, rotating conical surface accelerates the arriving thick matter and prevents solids bake-on.

Abstract: A centrifuge for a semiconductor wafer has a centrifuge plate for holding a semiconductor wafer, has a drive for setting the centrifuge plate in rotation, and has a device for supplying a medium to a front side and a rear side of the semiconductor wafer. The centrifuge has a housing which separates a centrifuging area and the semiconductor wafer from the environment, and a device for generating a laminar gas flow in the housing. A method for centrifuging a semiconductor wafer has the semiconductor wafer being centrifuged in a laminar gas flow.

Abstract: A wafer dryer for drying a wafer includes a chamber and a support adapted to support the wafer in the chamber. A spray nozzle is disposed in the chamber. A source gas supply tank is in fluid communication with the spray nozzle. At least one heater is operable to heat the chamber and the source gas supply tank. A pumping line is in fluid communication with the chamber. Drive means are operable to rotate the chamber and the spray nozzle. A method for drying a wafer using a wafer dryer including a chamber and a revolving spray nozzle includes the steps of: loading the wafer in the chamber; reducing the pressure in the chamber in which the wafer is loaded to a near vacuum state; creating a temperature controlled atmosphere in the pressure-reduced chamber to quicken drying of the wafer; and spraying the source gas on the wafer while rotating the chamber and the revolving spray nozzle in opposite directions in the pressure-reduced temperature controlled atmosphere.

Abstract: The present invention relates to a process for drying protein crystals starting from an aqueous protein crystal suspension, which comprises drying the protein crystal suspension in a centrifugal dryer, where the protein crystals, after they have been filtered off from the protein crystal suspension, are brought into contact with a drying medium which consists of a mixture of water and a nonaqueous solvent which is miscible with water in any ratio and which has a lower vapor pressure than water. In the process, a drying gas which has been moistened with water is advantageously used. The protein crystal suspension is advantageously converted into a fluidized bed for the purpose of drying.

Abstract: The present invention is concerned with a moisture sensor for measuring the moisture content of particulate material like ore concentrates. The sensor comprises a body having one end to be buried within the bulk of the particulate material and the other end coupled to a force transducer. The force transducer itself is coupled to display means, so that when a conveyor containing the ore concentrate is in operation, a signal is generated from the force transducer and displayed as a result of the drag force exerted by the particulate material on the body. The moisture content may therefore be determined either by means of a calibration chart, or by the output of a calibration computer.

Abstract: A process and an apparatus for drying of a material in the form of a paste or a filter cake in a spin flash dryer. Particles are separated by a classifier (6) in the chamber (1) in such a way that oversize fraction is withheld in the chamber (1) and the desired fraction is removed (3, 9). A possible undesired undersize fraction is strained off and recycled (4, 10, 11) externally back to the dryer chamber (1). The spent drying gas is recycled to the dryer chamber (1). In either, the energy in the spent drying gas may be made use of in a heat exchanger and there is no or only little emission to the environment. Products preferably dried according to the invention are fruit and beet pulps, destillers residues, pesticides, pigments, dyes, ceramics, active coal, sludge and zeolites.

Abstract: In a spin dryer for semiconductor wafers, the wafer is held beneath a platen with its active side (i.e., the side containing the components or circuitry) facing upward. One or more nozzles spray rinse water on the top surface of the wafer and the wafer is rotated to remove the excess rinse water, thereby drying the wafer. A splash guard adjacent the edge of the wafer insures that the excess rinse water thrown off by the spinning wafer is deflected downward where it cannot again come into contact with the active side of the wafer. The platen is rotated dry at the same time, with no rinse water being splashed back onto the active side of the wafer. The spin dryer also includes a separate section which cleans and dries the end-effector of the robot which inserts the wafer into the spin dryer while the wafer is being dried.

Abstract: A method of processing a disk-shaped substrate, or wafer, during a chemical vapor process includes a backside purge of the substrate with a purge gas. The backside purge is obtained by spinning the substrate about a central axis, directing a flow of the purge gas over the backside of the spinning substrate, and causing the purge gas to flow in an outward radial direction with the spinning substrate. An apparatus in a vapor processing system structured for conducting the backside purge includes a support mechanism structured and arranged to support the substrate and spin the substrate about a central axis, and a conduit coupled to a source of purge gas, structured and arranged to direct a flow of the purge gas over a backside of the substrate while the substrate is spinning such that the spinning substrate causes the purge gas to flow radially outward.

Abstract: Coal or other mineral slurry is dewatered by establishing a bed of the slurry and injecting a gas stream such as air into the bed to establish turbulent flow to strip moisture. This slurry may use particles in the range 0.5 mm to 30 mm with air injected at about 10 m/sec, and suitable novel apparatus includes a centrifuge or a vibratory conveyor with a closed tunnel and transverse air flow for stripping moisture.

Abstract: Disclosed is a drying hopper comprising, disposed in its lower position, a cone portion having diameters gradually decreasing toward a lower end thereof, in which a high temperature gas is injected toward powder descending in the cone portion to thereby dry the powder, wherein said drying hopper comprises a cone portion 11 having a slant, circular wall, said cone portion 11 having a plurality of vertically spaced rows of nozzles 20, formed through the circular wall, disposed at predetermined intervals in a circumferential direction of the circular wall; a plurality of vertically spaced ring-like shells 21 fluidtightly attached to an external surface of the circular wall of the cone portion 11 with interstices therebetween in positions such that said plurality of rows of nozzles 20 are respectively, at gas inlets thereof, covered by said plurality of ring-like shells 21; and a plurality of gas feed pipes 22 respectively connected to said plurality of ring-like shells 21 in communicating relationship.

Abstract: An extractor for removing water from washed articles hung from hangers includes a hollow outer structure 11 containing therein a hollow inner structure 12 having side walls made of a perforated sheet metal and a motor 31 for rotating the inner structure 12. Both structures 11 and 12 are open at the top, and a plurality of hanger-supporting pieces 16 are attached to the inner structure 12 for suspending therefrom hangers 1 carrying washed articles. There are also a supply device 50A for causing hangers 1 to become suspended from the hanger-supporting pieces 16 from above and a discharge device 50B for removing hangers carrying dehydrated articles thereon from the hanger-supporting pieces 16 upward to above the inner structure 12.

Abstract: Moistened powder and granular materials, such as produced by an extrusion granulator, are disintegrated into uniformly sized and shaped granules by an apparatus having a cylindrical housing and a working plate rotatably disposed in the housing in coaxial alignment with said housing, with an opening at the center of the working plate. A working fluid is introduced into the interior of the housing above the working plate through a wall of the housing and moistened powder and/or granular raw materials are supplied into the housing onto the working plate. The treated materials are discharged through the central opening in the working plate.