JPS6458904A - Hot air flow generator for use in drier - Google Patents

Abstract

PURPOSE:To increase the area ratio of the combustion panel of the burner to the sectional configuration of a hot air supply passage so as to increase the temperature of a hot air flow by disposing a tetragonal opening part of a hot air flow supply passage and a tetragonal combustion of a gasification burner in an opposing manner. CONSTITUTION:While blasting a dry air flow into a draft cylinder by an exhaust fan, kerosene is supplied to the vaporizing cylinder of the burner to rotate the cylinder. Then, a fuel oil is agitated as it if were flied away by a centrifugal force, and is atomized within the vaporizing cylinder. Then, the fuel oil is sent to a combustion panel 26 via the vaporizing cylinder and burns in the form of a blue flame in a combustion chamber. In this case, a combustion panel 26 having the combustion chamber of a vertically long and rectangular shape, where a gas vaporized in the vaporizing cylinder of the burner is burnt, is disposed in opposite to a tetragonal opening part 10 of a hot air flow chamber 4 communicating with a flow-down type drying path 3. Therefore, as compared to the conventional apparatus where a circular combustion plate is disposed in opposite to the opening part, it is possible to dispose a combustion panel having a wide combustion area with the same breadth in opposite to the opening. It is also possible to increase the area ratio of the combustion area of the burner with respect to the sectional configuration of the hot air flow chamber and to raise the temperature of the hot air flow.