The equipment composition of YIRAN natural gas roller hearth furnace: feeding roller table, natural gas roller hearth furnace body, inlet constriction door, quenching zone, rear cooling section, outlet constriction door, drying device, discharge roller table, etc. The YIRAN roller hearth heat treatment furnace has the following characteristics:
1. Charging mode of natural gas roller hearth furnace: manual feeding and automatic feeding, the steel pipe is automatically rolled to the roller table in front of the furnace;
2. The roller table in front of the furnace automatically sends the steel pipe into the furnace for heating, and the speed of the steel pipe can be adjusted at any time according to the feeding condition in the furnace;
3. The rolling speed of the roller table in the furnace is adjustable, the advance speed of the steel pipe in the furnace is preset according to the size of the steel pipe and the technological requirements, and the speed is automatically controlled.
4. When the heated steel pipe moves to the outlet of the furnace, it will be sent to the roller table behind the furnace quickly, and at the same time, the cooling water will be sprayed automatically from the roller table behind the furnace to the hot steel pipe.
5. At the end of spraying, the turning machine automatically turns the steel pipe into the cooling water tank and takes it out after the pipe is completely cooled to complete the heat treatment process of the steel pipe.
6. After the cooling water is sprayed on the hot steel pipe, the cooling water automatically flows into the cooling water pool for natural cooling, and the pump is used to draw back the cooling water and continue to be used.