A housing apparatus, as part of a clothes dryer's gaseous fluid exhaust system containing components for maintaining an open restriction free airflow passageway for maintaining the dryer's efficiency and sized to fit within a typical wall cavity of a building.

A means for filtering and removing excess clothes lint, preventing entry of lint particulate into an upper exhaust vent pipe or blend with down falling condensate, both being derived from a clothes dryer's warm moist exhaust airflow.

A diverter to direct the exhaust airflow to a primary exterior location or to a secondary interior location.

A means to separate falling condensate from exhaust airflow and dispose the condensate into an exclusive disposal destination.

The elements of this invention combine to increase the efficiency, longer life and safety of a clothes dryer and its exhaust system by removing lint particulate and separate exhaust airflow from falling condensate within the clothes dryer exhaust system.

A drying apparatus includes a heating mechanism configured to heat an inside of a drying oven in which paint applied to a workpiece is dried. The inside of the drying oven is partitioned into an upper region and a lower region by a partition plate. The drying oven has an air passage that enables air to flow between the upper region and the lower region. A metal member to which paint is applied is conveyed into the upper region, and a resin member to which paint is applied is conveyed into the lower region.

Methods for drying a substrate. The methods include the following steps: (a) emitting infrared radiation towards a substrate moving through a process space using an emitter unit comprising at least one infrared emitter, (b) generating at least two process gas streams of a process gas directed towards the substrate, (c) drying the substrate by the action of infrared radiation and process gas on the substrate, and (d) extracting moisture-laden process gas from the process space via an extraction duct, forming an exhaust air stream leading away from the substrate. To specify a drying method which is reproducible and effective and leads to an improved result, in particular in terms of homogeneity and speed of drying of the substrate, the at least two process gas streams are guided to the infrared emitter before they act on the substrate, and an exhaust air stream is spatially assigned to each process gas stream.

A device for drying grain includes a housing having an inlet port and an outlet port, a first passageway, a second passageway, a grain flow housing, a filter across the grain flow housing, a recovery column, an air supply, a recycle column, a filter cleaner in the recovery column, and a conveyor for moving the filter cleaner along the filter. The air supply pulls an air flow into the housing through the inlet port as a grain flow pours through the grain flow housing. The air flow passes through the grain flow in a first pass air flow from the passageways to dry the grain. The first pass air flow passes through the filter to remove particles, and a portion of that filtered first pass air flow is recycled back with the filter cleaner to dislodge particles clogging the filter. The other portion is vented through the outlet port.

A system and method for extracting waste heat from the exhaust (20) of a biomass dryer (14), such as in a grain alcohol plant (10). A boiler circuit (74) provides steam at a high pressure to a balance of the plant (64). A recovered energy circuit (76) extracts heat from the exhaust and provides steam (60) at an intermediate pressure, thereby eliminating the need for a pressure reducing valve in order to satisfy an intermediate pressure steam demand in the plant. Working fluids in the boiler and recovered energy circuits are intermixed in a boiler feed vessel (72).

Waste heat is extracted from the exhaust (20) of a biomass dryer (14) in a grain alcohol plant (10). A boiler circuit (74) provides high pressure steam to a balance of the plant (64). A recovered energy circuit (76) extracts heat from the exhaust via a dryer exhaust condensing economizer (24) and provides a steam mixture (60) to satisfy an intermediate pressure steam demand of the balance of the plant, thereby bypassing a portion of the boiler circuit. Working fluids in the boiler and recovered energy circuits are intermixed in a boiler feed vessel (72). Dryer exhaust condensate (30) may be used in an exhaust gas scrubber (22) upstream of the dryer exhaust condensing economizer to remove pollutants and to saturate (26) the exhaust gas for improved heat transfer. Heat transfer may be further improved by operating the dryer exhaust condensing economizer at an elevated pressure.

The present invention relates to a processing system (0) intended to dehydrate food waste (4) comprising at least one device (200) for storing and heating food waste (4) comprising at least one device for stirring the food waste (4), a direct contact heat exchange condenser (34) comprising an opening (37) for extracting incondensable gases from the condenser (34), a first pipe (3) allowing direct communication between the storage device (200) and the condenser (34) to allow the passage of gaseous effluents (22) particularly comprising steam, produced by the heating of said food waste (4) in the waste storage and heating device (200), to the direct contact heat exchange condenser (34), where the steam condenses in contact with a shower of the coolant liquid. The recycling of heat between the condenser (34) and the device (200) for storing and heating food waste is provided by a heat pump (6).

The present invention relates to an improved food waste dryer utilizing waste heat, which includes a main frame, a dryer drum with an access door, to be positioned in the main frame, and an agitator positioned in the dryer drum. The improved food waste dryer comprises: a waste heat supply unit, a heating jacket positioned on the outer surface of the dryer drum, with a hot-air inlet to receive the waste heat from the waste heat supply unit and a hot-air outlet to discharge the waste heat inside the dryer drum, and a condensation system positioned in the main frame, to remove moisture included in the interior air of the dryer drum to increase the drying efficiency of the food waste dryer utilizing waste heat.

According to a first embodiment, a dryer for removing hydrocarbons and/or moisture from metal chips is provided. The dryer includes a top portion and a base portion. The top portion comprises an elongated tubular chamber containing a scrap conveyor. The base portion comprises a burner, a heat exchanger, a high temperature VOC elimination chamber and a vent for returning reduced VOC gasses to the top portion. The top portion is configured to receive the metal chips at an inlet and transport the metal chips to an outlet while receiving heated air from the base portion.

The invention relates to a recovery device and a recovery method for recovering heat from moist exhaust air containing particles, having a housing extending in a flow direction of moist exhaust air containing particles from an entrance to an exit, a plurality of tube elements extending parallel to one another within the housing and a heat exchange medium for absorbing heat from the moist exhaust air containing particles. In order to provide a device and a method which enable energy to be recovered from the exhaust air of industrial heat generators and, in particular, of industrial drying systems with a long, uninterrupted operating time and with little downtime, it is provided that the moist exhaust air is conducted through the interior of the tube elements and the heat exchange medium flows around the exterior of the tube elements, and a cleaning unit (14) for cleaning the interior of the tube elements is arranged upstream of the tube elements (10) in the direction of flow (SR) of the moist exhaust air containing particles.