Abstract: A method and apparatus for underwater pelletizing and subsequent drying of crystallizing polymers to crystallize the polymer pellets with out subsequent heating is shown in FIG. 5. High velocity air or other inert gas is injected into the water and pellet slurry line (120) toward the dryer near the pelletizer exit (102) at a flow rate from about 100 to about 175 m3/hour, or more. Such high-speed air movement forms a vapor mist with the water and significantly increases th speed of the pellets into and out of the dryer such that the polymer pellets leave the dryer with sufficient latent heat to cause self-crystallization within the pellets. A valve mechanism in the slurry line (150) after the gas injection further regulates the pellet residence time and a vibrating conveyor after the dryer helps the pellets to achieve the desired level of crystallinity and to avoid agglomeration.

Abstract: A method and apparatus for underwater pelletizing and subsequent drying of crystallizing polymers to crystallize the polymer pellets with out subsequent heating is shown in FIG. 5. High velocity air or other inert gas is injected into the water and pellet slurry line (120) toward the dryer near the pelletizer exit (102) at a flow rate from about 100 to about 175 m3/hour, or more. Such high-speed air movement forms a vapor mist with the water and significantly increases th speed of the pellets into and out of the dryer such that the polymer pellets leave the dryer with sufficient latent heat to cause self-crystallization within the pellets. A valve mechanism in the slurry line (150) after the gas injection further regulates the pellet residence time and a vibrating conveyor after the dryer helps the pellets to achieve the desired level of crystallinity and to avoid agglomeration.

Abstract: A method and apparatus for underwater pelletizing and subsequent drying of crystallizing polymers to crystallize the polymer pellets with out subsequent heating is shown in FIG. 5. High velocity air or other inert gas is injected into the water and pellet slurry line (120) toward the dryer near the pelletizer exit (102) at a flow rate from about 100 to about 175 m3/hour, or more. Such high-speed air movement forms a vapor mist with the water and significantly increases th speed of the pellets into and out of the dryer such that the polymer pellets leave the dryer with sufficient latent heat to cause self-crystallization within the pellets. A valve mechanism in the slurry line (150) after the gas injection further regulates the pellet residence time and a vibrating conveyor after the dryer helps the pellets to achieve the desired level of crystallinity and to avoid agglomeration.

Abstract: A continuous process wherein polymers or polymeric materials can be subjected to multiple sequential processing systems of differing temperatures and process conditions to synergistically enhance the pelletization and crystallization of those polymers and polymeric formulations, dispersions, and solutions. The multiple sequential processing systems include the processes and equipment for mixing/extrusion, pelletization, multiple transportation processes, crystallization, multiple drying processes, and optional post-processing manipulations of pellets formed. Multiple serial and/or parallel crystallization processing systems are disclosed.

Abstract: The invention relates to a device for device for continuous drying of material, particularly sewage sludge, which has a belt 2, particularly a filter belt, on which the material is conveyed. It is characterised by a distribution screw 4 being mounted above the belt 2, particularly filter belt, at the inlet in order to feed the material onto the belt 2, particularly filter belt. In addition, the invention relates to a process for drying material, particularly sewage sludge, where the material is conveyed on a belt 2, particularly a filter belt, through a dryer 1, which process is characterised by the material being fed in through a distribution screw 4, where the level can be changed by altering the belt speed.

Abstract: The present invention relates to the treatment of wood, and is particularly concerned with a method for increasing the permeability of wood, especially moist wood.

Abstract: Rapidly disintegrating preparations containing at least one active pharmaceutical ingredient and at least one excipient can be obtained by a simple process in which at least the predominant part of the complete composition of the ingredients for the preparation to be produced is granulated, the resulting granules and, where appropriate, the remainder of the ingredients are shaped in the presence of liquid virtually without pressure, and the resulting shaped articles are dried.

Abstract: A method for making wood with heartwood has steps of forming a wood log with a heartwood from a tree, pressure treatment to the wood log with the heartwood, drying the wood log and forming the wood log to a desired shape. The pressure treatment process is to apply a desired pressure to the wood log to reduce a moisture content of the wood log with the heartwood to an even level. This can avoid the wood log with the heartwood to split, crack or deform during the drying process. The utilization of a tree can be increased, and the process for gain a wood material is simplified.

Abstract: A wood treatment method wherein a piece of wood to be treated is heat treated at high temperature for a predetermined time. According to the method, the piece of wood is heated to its glass transition temperature (Tg) prior to the heat treatment, and maintained thereat until the whole of the piece of wood has reached the glass transition temperature (Tg).

Abstract: In a drying and pressing machine that includes a pressing cylinder, a flow spun stainless steel pressing cylinder is used, produced in one piece and without welding. This cylinder (10) has a reduced thickness. It rests on rollers (10) that comprise glass fiber reinforcement and a resin matrix. Each roller (12) is mounted on a fixed spindle (24) using a ball bearing (26).

Abstract: A method for manufacturing a high strength lumber obtained by artificially compressing a volume of grown natural wood without any destruction of wood tissue, and which is made such that a pine tree is lumbered and exposed to a microwave whereby moisture content is forcibly discharged and cellulose is softened and thereby volume is constricted up to more than 70% by a hydraulic press during a latent heat is still present, so that a high strength lumber is obtained without any destruction of lumber tissue and due to this, a strength and hardness are improved about 30 times of original wood and a tensile strength is increased about up to 10 times of original wood.

Abstract: A process is provided for drying raw material that comprises solids and a substantial amount of moisture. The process in its basic form involves the steps of forming the raw material into pellets by extrusion under pressure through a forming die into pellets with the solids compacted into a cohesively secured mass and then drying the pellets thus formed to reduce the moisture to a desired percentage. Raw material that has an excessive amount of moisture such that they cannot be extruded are first mixed with a dry material to reduce the moisture content to the point where they can be extruded.

Abstract: A method and a system serve to completely or partially dehydrate sludge by evaporation which originates from e.g. sewage. The sludge is dried with addition of heat in a drying chamber (2), the sludge being transported on an endless travelling grate (3) from an inlet opening (8) in the drying chamber (2) to a discharge opening (9) in it. The sludge is deposited on the grate in a plurality of juxtaposed sludge strings (18) by means of an extruder (6), in which the sludge is preheated to almost 100.degree. C. prior to extrusion. The extruded strings (18) are then heated with such an intensity that the water in the sludge immediately begins to boil, and that a zone of preferably saturated water steam is formed at any rate in the immediate vicinity of the sludge. This provides a light and porous, dried sludge product which is in no way either burnt or scorched, and which constitutes excellent fuel as well as excellent compost.