| 摘要 |
In the dough proofing machine described a housing contains a conveyor extending in a tortuous path from one end to the other, a heater and steam injector positioned in the center of the housing. Transversely extending vertically disposed plenum walls are located on either side of the heater and extend all the way to the side walls of the apparatus. A blower is associated with the heater to direct the air flow downwardly into a distribution plenum located below the heater and openings are provided in the front and rear of the distribution plenum allowing the air to travel in two substantially balanced symmetrically arranged flow paths, one of which is directed forwardly and upwardly and the other rearwardly and upwardly thereby balancing the conditions of humidity and temperature substantially throughout the entire apparatus. An air flow controller introduces outside air and exhausts circulating air as conditions require.
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