A flame protection apparatus for a burner, in particular in a drying drum, in particular in an asphalt facility, has a central longitudinal axis and a plurality of plate fins which are arranged in a circumferential arrangement in the circumferential direction with respect to the central longitudinal axis, wherein plate fins that are arranged adjacent to one another in the circumferential direction are sealed by means of a circumferential gap seal.

A single pass, multiple stage, rotary drum heat exchange dryer (22) is provided for drying products such as distillers grains and includes a tubular shell (64) with a moist product inlet (66), an opposed dried product outlet (70), and an internal drying chamber (78). The chamber (78) includes a convection drying first stage (80), and conductive drying final curing stage (82) an intermediate stage (84); the intermediate stage (84) is subdivided into a plurality of contiguous drying zones (86-92). The zones (86-92) include individual flighting assemblies (164) which are of substantially the same density and heat transfer ratios.

A hybrid drying apparatus including: a bed portion having a horizontally disposed top surface; an object-to-be-dried supplying portion configured to spread an object to be dried on the top surface of the bed portion; and a driving unit configured to rotate and drive the bed portion or the object-to-be-dried supplying portion, wherein the object to be dried supplied from the object-to-be-dried supplying portion is spread on the top surface of the bed portion while the bed portion or the object-to-be-dried supplying portion is rotated, and the top surface of the bed portion is heated in such a manner that a lower portion of the bed portion is primarily heated so that the bed portion is used to dry the object to be dried coated on the top surface of the bed portion by the object-to-be-dried supplying portion.

The invention relates to a dryer system for drying lignite coal used in a power plant. The system comprises a dryer and a closed loop heat pump circuit that is configured and arranged to provide heat energy to the dryer. The closed loop heat pump circuit includes a working fluid, a dryer heat exchanger, an expansion device fluidly connected and downstream of the dryer heat exchanger, arranged to enable heat energy transfer from the vapor of the second outlet line to the first working fluid and a compressor for compressing the working fluid.

A continuous feed lyophilizer drying chamber that has an overall internal volume, a primary drying stage portion having a primary drying stage internal volume, a secondary drying stage portion having an internal volume, a frozen formulation feed inlet that provides frozen formulation droplets into the internal volume of the primary drying stage of the drying chamber and a dried particle outlet proximate an end of the continuous feed lyophilizer drying chamber configured to provide dried formulation droplet particles. The primary drying stage typically makes up from about 65-75% of the overall internal volume of the drying chamber and the secondary drying stage makes up from 25 to 35% of the overall internal volume of the drying chamber. The drying chamber dries frozen formulation droplets received into the primary drying stage internal volume via the frozen formulation feed inlet.

A combination of components for use in making asphalt concrete from a mixture of virgin aggregate material with recycled asphalt products and/or recycled asphalt shingles encompasses a direct dryer for heating virgin aggregate material; a pre-dryer for heating recycled asphalt product and/or recycled asphalt shingles, said pre-dryer using warm exhaust gas from said direct dryer to heat the recycled asphalt product and/or recycled asphalt shingles; and means for conveying warm exhaust gas from said direct dryer to said pre-dryer.

A dryer for a textile web includes a drying chamber having at least one air-permeable drum arranged in the drying chamber to rotate, wherein the drum includes an end face constituting an axially arranged suction side, the textile web is wrapable at least partially around the drum and heated drying air is flowable through the textile web. A hot gas source provides heated gas. A ventilator forms a suction draft via the suction side of the drum with drying air from inside of the drum and drying air that recirculates back into the drying chamber. At least one hot gas feeding ring encloses the suction draft and is configured to permit the hot gas from the hot gas source to flow essentially completely into the suction draft.

A flame protection apparatus for a burner, in particular in a drying drum, in particular in an asphalt facility, has a central longitudinal axis and a plurality of plate fins which are arranged in a circumferential arrangement in the circumferential direction with respect to the central longitudinal axis, wherein plate fins that are arranged adjacent to one another in the circumferential direction are sealed by means of a circumferential gap seal.

A flame protection apparatus for a burner, in particular in a drying drum, in particular in an asphalt facility, comprises a central longitudinal axis and a plurality of lifter plates, which are arranged in the circumferential direction with respect to the central longitudinal axis, wherein at least one plate fin holder for holding a plate fin is detachably fastened to each of the lifter plates.

A rotary drum dryer includes a shell, an apertured rotary drum disposed within the shell and positioned to define a plenum between an interior surface of the shell and an exterior surface of the rotary drum, the plenum being divided into a plurality of zones by at least one separator plate disposed in the shell, and a plurality of drying air inlet nozzles disposed along the shell, each of the plurality of drying air inlet nozzles being positioned to direct drying air into a corresponding one of the plurality of zones.