Method and equipment structure for setting energy-saving and emission-reduction air return capacity of multi-wire enameling machine

The invention discloses a method and an equipment structure for setting energy-saving and emission-reduction air return capacity of a multi-wire enameling machine. The method comprises the following steps of: changing the arrangement space of electric heating pipes in a main furnace body to be 5-5.5 cm; setting the width of the inlet of a hot air distribution chamber to be N*(7-12mm); setting the height of the inlet of the hot air distribution chamber to be 160-200 mm; choosing the power and the rotating speed of a circulating fan to be 1.5-2.2 KW and 550-800 rpm; and choosing the power and the rotating speed of a waste discharge fan to be 0.75KW and 250-500 rpm. According to the method and the equipment for setting energy-saving and emission-reduction air return capacity of the multi-wire enameling machine, the production efficiency is improved by 15 percent, the quality is greatly improved and the electricity is saved by about 20 percent; the discharge quantity of the organic waste gas VOCs is 30-80 mg/Nm a