摘要:
A variable residence time drying system for moist material includes a valveless pulse combustor and a drying chamber. The drying chamber includes a lower sidewall with an upward expanding configuration that defines a lower inverted partial cone, an upper sidewall with an upward contracting configuration, a lifting rotor disposed within the lower inverted partial cone to suspend material being dried within a shear/drying zone, an opening through which moist material is fed into the drying chamber, and an exit located at a top portion of the drying chamber through which dried material exits the drying chamber. The valveless pulse combustor produces drying gas and sonic vibrations that are introduced tangentially into the shear/drying zone. One or more cyclones receive dried material and collect small particles. The lifting rotor may rotate in a direction counter to a direction in which the heated drying gas is introduced into the drying chamber.
摘要:
Herein is disclosed a spin flash dryer further comprising a waste outlet arranged in a chamber bottom of the spin flash dryer for removal of a residual organic waste material from a spin flash dryer during spin flash operation and a method of operating a such spin flash dryer to remove residual organic waste material from said spin flash dryer during operation.
摘要:
A compact low-maintenance moving air modular cabinet wood particles/sawdust dryer having a serpentine path for heated air to move injected wood particles/sawdust through the cabinet, drying it as it goes, together with a system for providing controllable heated airflow and a regulated supply of wood particles/sawdust to be dried.
摘要:
Methods and apparatus are provided for making particles comprising: (a) spraying an emulsion, solution, or suspension, which comprises a solvent and a bulk material (e.g., a pharmaceutical agent), through an atomizer and into a primary drying chamber, having a drying gas flowing therethrough, to form droplets comprising the solvent and bulk material dispersed in the drying gas; (b) evaporating, in the primary drying chamber, at least a portion of the solvent into the drying gas to solidify the droplets and form particles dispersed in drying gas; and (c) flowing the particles and at least a portion of the drying gas through a jet mill to deagglomerate or grind the particles. By coupling spray drying with “in-line” jet milling, a single step process is created from two separate unit operations, and an additional collection step is advantageously eliminated. The one-step, in-line process has further advantages in time and cost of processing.
摘要:
The invention concerns a vortex machine modified to intensify the vortex in the machine by installing inlet fans in addition to the main fan and modifying the configuration of the machine. Additional intensification of the vortex is achieved by introducing microwaves into the vortex machine. The vortex machine has a vortex tube, an inlet tube to the vortex tube at the inlet end, a feed inlet to the vortex tube between the inlet end and an outlet end and a fan rotor at the outlet en to draw air in a vortex through the vortex tube. An inlet fan in the inlet tube adapted to force air into the vortex tube. These modifications and additions achieve commercially viable capacities of the vortex machine in drying, grinding and process applications.
摘要:
Methods and apparatus are provided for making particles comprising: (a) spraying an emulsion, solution, or suspension, which comprises a solvent and a bulk material (e.g., a pharmaceutical agent), through an atomizer and into a primary drying chamber, having a drying gas flowing therethrough, to form droplets comprising the solvent and bulk material dispersed in the drying gas; (b) evaporating, in the primary drying chamber, at least a portion of the solvent into the drying gas to solidify the droplets and form particles dispersed in drying gas; and (c) flowing the particles and at least a portion of the drying gas through a jet mill to deagglomerate or grind the particles. By coupling spray drying with nullin-linenull jet milling, a single step process is created from two separate unit operations, and an additional collection step is advantageously eliminated. The one-step, in-line process has further advantages in time and cost of processing.
摘要:
Apparatus and method of comminuting materials are provided. In one embodiment, the comminution/drying apparatus comprises a comminution/drying cyclone having an input and an output, a blower having a blower output connected to the input of the comminution/drying cyclone, a material feed connected to the input of the comminution/drying cyclone, and a separation cyclone having an inlet connected to the output of the comminution/drying cyclone, the separation cyclone having a material discharge and an air outlet. In another embodiment, the comminution apparatus comprises a comminution cyclone having an input and an output, a blower having a blower output connected to the input of the comminution cyclone, a material feed connected to the input of the comminution cyclone, and a wet filtration system having an inlet, a material discharge and an air exhaust, the inlet of the wet filtration system connected to the output of the comminution cyclone.