Gas lance

摘要

With a gas lance for pulsed blowing in of liquid gas into a baking kiln in the ceramic industry, air is, between the gas pulse blasts, pressed through the lance body so that the gas residues which have settled in the inside of the lance body are removed with the air. To control the air supply, it is appropriate in this case that the gas can be supplied with a higher pressure in relation to the air of the gas lance so that the pressure difference between gas and air controls the air supply in such a manner that the latter is shut off during the gas pulses.