Drying installation

摘要

A drying installation (1) and method for drying of products (3). More in particular, the invention relates to a drying installation (1) and a method for drying sludge or mud, as e.g. the drying of wastewater and industrial sludge possibly contaminated with toxic or corrosive components. The dryer installation (1) comprises infrared emitters (5) which are protected and/or insulated from the evaporation products (7) exiting the drying product (3).

主权项

1. A dryer installation (1) for drying a product (3), said dryer installation comprising:
a device (2) for moving the product (3); at least one heating unit (4), said heating unit comprising at least one infrared emitter (5) and an overpressure system (6); said heating unit (4) adapted for heating by radiating said moving product (3), thereby obtaining evaporation products (7); said at least one heating unit (4) being delimited by protection (8); said protection (8) being transparent to infrared radiation and providing a physical barrier against said evaporation products (7); said overpressure system (6) being adapted for blowing air (9) into said heating unit (4) for creating an overpressure in the heating unit (4); said infrared emitters (5) adapted for producing combustion products (10) at high temperature; said air (9) and said combustion products (10) getting mixed in the heating unit thereby obtaining a mixture (11); said protection (8) being adapted for allowing a first flow (12) of said mixture (11) to exit the heating unit (4) through said protection (8) onto the product (3) to be dried; said overpressure system (6) being adapted for removing a second flow (13) of said mixture (11) out of the heating unit (4);said dryer installation further comprising:
an extraction means (14) being adapted for extracting extracted products (15), said extracted products (15) comprising at least part of said evaporation products (7) andsaid first flow (12) of said mixture (11).