A process for augmenting energy in a dryer used in processing is disclosed. The process includes providing a source of syrup having concentrated solids. They syrup is then directed through a syrup line to a recirculation pump where it is recirculated to a heat exchanger having a source of heat delivered thereto. The syrup is heated to a temperature above a flash point of the syrup. The heated syrup is delivered to a flash tank and water vapor is flashed off and then directed through a vent and into a dryer. Cooled water remaining in the flash tank is delivered through a cooled liquid line to the syrup line to repeat the process. The delivery of water vapor to the dryer results in an additional source of energy being transferred to the dryer.

In order to provide a treatment installation for treating workpieces that is of simple construction and enables optimised workpiece treatment, it is proposed that the treatment installation should include a treatment chamber and a conveying device, by means of which the workpieces are suppliable to the treatment chamber, are removable from the treatment chamber, and/or are conveyable through the treatment chamber in a conveying direction.

The invention relates to an evaporation dryer (1) for drying particles, havinga process chamber (10) with at least one product inlet (11) for supplying the particles to be dried into the process chamber (10) and a product outlet (12) for discharging dried particles from the process chamber (10), a heat exchanger (20) arranged within the process chamber (10), having at least one inlet (21, 211) into the heat exchanger (20) for pressurized steam as process steam and at least one condensate outlet (22, 222) from the heat exchanger (20), whereinthe at least one condensate outlet (22, 222) is connected to an expansion tank (30), wherein at least one pump (40) is connected to the expansion tank (30), and the expanding steam is pumped out of the expansion tank (30) and supplied to the process steam.

Disclosed are exhaust heat recirculation systems for vehicle wash vacuums, methods for making/using such vacuum exhaust heat recirculation systems, and vehicle wash facilities with a central vacuum system having exhaust recirculation capabilities. A vehicle wash facility includes multiple vehicle stalls, and a vacuum system for removing debris from vehicles at the vehicle stalls. The vacuum system includes vacuum hoses mounted at the vehicle stalls, a central power unit that generates vacuum pressure for operating the hoses, and feeders for connecting the hoses to an inlet manifold of the central power unit. An exhaust heat recirculation system is operatively connected to and evacuates exhaust gases from the central power unit. The vacuum system may include a continuous-belt heater unit that receives the evacuated exhaust gases and repurposes the gas for drying towels, mitter cloth strips, brushes, etc.

A dryer for installation on a self-propelled machine, such as a combine harvester, with recovery of the exhausted thermal energy coming from the endothermic engine of the latter. The dryer is of the on-line type and comprises at least two feed screws, internally to which grain is moved towards a tank and dried by the hot air coming from a first and second heat exchangers respectively, the first heat exchanger being crossed by the high temperature exhaust fumes of said endothermic engine and the second heat exchanger by the cooling liquid.

Apparatus and method for drying thermoplastic resin prior to molding into plastic parts comprises a continuous loop liquid circuit for furnishing liquid at a prescribed temperature to a mold in which the plastic parts are fabricated; a continuous loop air circuit for passing heated dry air through a hopper containing the thermoplastic resin thereby drying the thermoplastic resin to a prescribed level of dryness; and a coupling thermally connecting the two circuits for heat transfer from the liquid to the drying air; the liquid is selected from the group comprising water and ethylene glycol; microprocessor control facilitates generation and retention of custom water temperature and resin dryness/temperature optionally based on machine learning principles.

The invention relates to a drying system (1) comprising a drying plant (2) and a heat pump assembly (3) comprising one or more heat pumps operating with a primary fluid and being connected to at least two heat sources and at least one heat sink by means of a number of heat exchangers in a fluid network, in which a secondary fluid circulates. The heat sources may comprise dew point dehumidification in at least one heat exchanger (41) of process gas entering the drying plant; and recovery in another heat exchanger (42) of latent and/or sensible heat from exhaust gas leaving the drying plant. The heat sink may comprise pre-heating in a heat exchanger (51) of process gas used within the plant. Further, a method of integrating a heat pump assembly into a drying system is devised. By the invention, it is possible to increase the capacity of the drying plant while reducing the specific energy demand.

The present invention relates to an improved method for using heat energy in a gypsum board plant. More specifically, the method contemplates taking heat from a gasifier, or other alternative heat source, and using it to dry gypsum boards. In order to control humidity levels, this heat is delivered to one or more board dryers via a heat exchanger.

A conditioning device for conditioning a gaseous medium to form a conditioned gaseous process medium having an inlet connection device and an outlet connection device between which a flow path for gaseous medium having at least one heating device for heating gaseous medium, is formed. The heating device is connected to an internal combustion engine heat pump system having at least one internal combustion engine so that the waste heat of the internal combustion engine can be used to heat the gaseous medium. A method for operating a conditioning device for conditioning a gaseous medium to form a conditioned gaseous process medium, wherein a flow path for gaseous medium is formed between an inlet connection device and an outlet connection device, the flow path having at least one heating device for heating gaseous medium. The heating device uses the waste heat of an internal combustion engine of an internal combustion engine heat pump system to heat the gaseous medium.

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.