Oxygen pressure leaching system and oxygen pressure leaching process

The invention relates to an oxygen pressure leaching system and an oxygen pressure leaching process, in particular to a zinc concentrate oxygen pressure leaching system and an oxygen pressure leaching process, the oxygen pressure leaching system comprises a high-pressure kettle, a flash tank, an adjusting tank, a solid-liquid separator and a flue gas treatment device, the high-pressure kettle, the flash tank, the adjusting tank and the solid-liquid separator are communicated in sequence, and the flue gas treatment device is communicated with the adjusting tank. An exhaust port of the adjusting tank is communicated with the flue gas treatment device; an exhaust port of the high-pressure kettle is blocked; the adjusting groove comprises a groove body, a feeding port and a discharging port which are communicated with the groove body are formed in the groove body, the position of the discharging port is higher than the position of the feeding port, the height difference between the discharging port and the feedin