Cleaning method of atmosphere rotary furnace

For the cleaning method of the atmosphere rotary furnace, today we will give a brief introduction:

1. Before cleaning the furnace with nitrogen, first tilt the furnace body upwards at a certain angle (the tilt angle should not cause the material inside the furnace tube to flow out, the tilt angle should make the air inlet upward and the exhaust outlet downward to accelerate nitrogen replacement, and the replacement should be more thorough without dead corners)

2. Enter the nitrogen washing furnace from the feed pipe and control the feed flow rate through a flow meter. The total ventilation volume is about 800L (recommended flow rate is 20L/min) × 40min). The exhaust is discharged through the exhaust pipe

Nitrogen washing of the furnace simultaneously meets the following three points:

1) The nitrogen flow rate entering the furnace tube reaches 800L (20L/min × 40min)

The oxygen content measured by the exhaust oxygen analyzer must be less than 0.1%

3) Use a transparent glass test tube to invert the exhaust from the exhaust port, and place a burnt match stem. The stem quickly extinguishes

The rated power of the atmosphere rotary furnace is 250KW, and the rated temperature is 850 ℃. The temperature control is divided into four zones. It tilts the resistance furnace fixed on the furnace support upwards through a hook and loads powdered raw materials. After installing the roller cover, it can be vacuumed to meet the usage requirements, and then filled with a certain amount of pure oxygen in one or multiple batches; Allowing oxygen filling can increase the oxygen partial pressure in the middle of the roller reflecting the cavity, accelerating the reaction process