A dryer adapted for use in an asphalt plant. The dryer includes a drum having an inner wall and a flight having a proximal end connecting the flight to the inner wall of the drum and a distal end that is spaced apart from the proximal end. A first profile extends from the proximal end to the distal end of the flight and defines a flight shape. A notch is formed in the distal end of the flight, which notch includes a notch shape that is defined by a second profile. The second profile has a length L, a center point, and a portion that substantially approximates a conic section.

A dryer (100), comprising a dryer chamber (101) coupled to a closed loop gas-circulating system for circulating gas through the dryer chamber (101); wherein the closed loop gas-circulating system recirculates the gas and comprises: a compressor (113) coupled to receive return gas from the dryer chamber (101) and to compress the return gas to provide compressed gas; a separator (109) sitting in the gas-circulating system for draining condensate from the gas; and a gas discharger (103; 104) coupled to receive compressed gas from the compressor (113) and to discharge the compressed gas through a discharger exit (118). The separator sits in the closed loop gas-circulating system downstream of the compressor to receive compressed gas and upstream of the gas discharger (103;104). Thereby drying efficacy is improved and is advantageous at relatively low drying temperatures such as below 40 degrees Celsius. There is also provided a door for a dryer, a method of operating a dryer and a method of drying, such as a method of drying pharmaceutical substances, compounds, ingredients or products.

A dryer (100), comprising a dryer chamber (101) coupled to a closed loop gas-circulating system for circulating gas through the dryer chamber (101); wherein the closed loop gas-circulating system recirculates the gas and comprises: a compressor (113) coupled to receive return gas from the dryer chamber (101) and to compress the return gas to provide compressed gas; a separator (109) sitting in the gas-circulating system for draining condensate from the gas; and a gas discharger (103; 104) coupled to receive compressed gas from the compressor (113) and to discharge the compressed gas through a discharger exit (118). The separator sits in the closed loop gas-circulating system downstream of the compressor to receive compressed gas and upstream of the gas discharger (103;104). Thereby drying efficacy is improved and is advantageous at relatively low drying temperatures such as below 40 degrees Celsius. There is also provided a door for a dryer, a method of operating a dryer and a method of drying, such as a method of drying pharmaceutical substances, compounds, ingredients or products.

Provided herein are systems, methods, and processes for drying a softgel having a hydrophilic fill material and one or more active ingredients. After forming the hydrophilic softgel, for example, the softgel is dried by sequentially passing the softgel through a series of specific drying conditions, in which the first drying condition has a low temperature and low dew point. In certain examples, controlled airflow is also used to dry the softgels. By using the systems, methods, and processes, the total time to dry the hydrophilic softgel can be beneficially reduced from several days to about 24 hours without causing shriveling of the softgel.

A biosolids treatment system that treats human biosolids to produce thermal energy for self-consumption for the production of beneficial use products including low carbon ash, high carbon activated biochar, and Class A biosolids. The system includes a variable feed conveyor that conveys a biosolid feed into a dryer; a dryer that dries the biosolid feed to a predetermined moisture content to create one of a beneficial use products, where the predetermined moisture content is controlled by varying the speed of variable feed conveyors and a variable feed mixer; and a gasifier that converts the biosolid feed into two of the beneficial use products.

A rotary vacuum drum drying system is described. The system may include a plurality of sensors and a control system operatively coupled with the plurality of sensors. The control system includes a processing device to receive, from the plurality of sensors, a plurality of parameters of the rotary vacuum drum drying system and transmit, to a client device, the plurality of parameters of the rotary vacuum drum drying system. The processing device is further to receive, from the client device, a message comprising an adjustment one or more parameters of the plurality of parameters and adjust the one or more parameters of the plurality of parameters based on the received message.

The softgel drying machine comprises a casing, an air channel, a drying chamber, an air return channel, a tumbler and an air-drying system. The casing comprises an air circulation chamber and an air generation chamber. The drying chamber comprises at least one air supply opening and at least one air returning plate. The air-drying system comprises at least one air blower fan, a dehumidification module and an air return cooling module. The air blower fan comprises an air blower inlet port, an air blower outlet port, a chiller and an air supply duct. The chiller is coupled to the air blower outlet port. The air return cooling module comprises an air return duct, an air return inlet port and an air return outlet port. The air return inlet port is airtightly coupled to the air return channel through the air return duct.

The softgel drying machine comprises a casing, an air channel, a drying chamber, an air return channel, a tumbler and an air-drying system. The casing comprises an air circulation chamber and an air generation chamber. The drying chamber comprises at least one air supply opening and at least one air returning plate. The air-drying system comprises at least one air blower fan, a dehumidification module and an air return cooling module. The air blower fan comprises an air blower inlet port, an air blower outlet port, a chiller and an air supply duct. The chiller is coupled to the air blower outlet port. The air return cooling module comprises an air return duct, an air return inlet port and an air return outlet port. The air return inlet port is airtightly coupled to the air return channel through the air return duct.

The softgel drying machine comprises a casing, first tumblers, second tumblers, a pneumatic conveying device and a air-drying system. The casing comprises a air generation chamber and a air circulation chamber. The air circulation chamber comprises a first circulation chamber and a second circulation chamber, at least one first drying chamber is located at the first circulation chamber, at least one second drying chamber is located at the second circulation chamber, the first drying chamber comprises a first air inlet and a first air outlet, the second drying chamber comprises a second air inlet and a second air outlet. The first tumblers are located at the first circulation chamber. The second tumblers are located at the second circulation chamber. The air-drying system is located at the air generation chamber and comprises a blower fan, an air return duct and an air supply port.

A dual tumble dryer unit that includes a housing that defines an interior, a divider that extends between first and second side walls and divides the interior into first and second sections, and first and second dryer assemblies that are positioned in the first and second sections. The first and second dryer assemblies each include a basket positioned to rotate about a horizontal axis, and a blower disposed positioned to blow air on the basket. A first drying path is defined between a first entry opening defined in the first side wall, the first basket and a first exit opening defined in the second side wall, and a second drying path is defined between a second entry opening defined in the first side wall, the second basket and a second exit opening defined in the second side wall.