| 摘要 |
A chamber serving for a heat treatment of a particular food product, which for example can be pre-processed potato pieces which are to be prepared as French fried potatoes, and therefore have a content of evaporable substances, such as fat. In the chamber is a grid for, during operation, carrying the product, and one or more quartz lamps for generating heat for the process. The chamber is furthermore fitted with an exhaust channel which via a filter device connects the chamber to the open. Above the grid is placed a cabinet which is open at the bottom, for mounting the quartz lamps. The cabinet is via an inlet duct connected to the open. In the inlet duct is placed a ventilator for sending an air flow into the cabinet via the inlet duct. The air acts as a shield which keeps for example fat vapors at a distance so that they cannot come into contact with the quartz lamps and disintegrate in the high temperature of these. Thereby, it is prevented that unhealthy and malodorous substances are produced during the process. The air shield furthermore cools the quartz lamps, which thereby will attain a long life. |
