90-DEG C high-temperature paste mixing process

The invention provides a 90 DEG C high-temperature paste mixing process which comprises the following process steps: 1, lead powder is added into a paste mixing machine, and the lead powder is stirredthrough the paste mixing machine; 2, water is added into the lead powder, the lead powder and the water are stirred uniformly, and lead paste is formed; 3, acid is added into the lead paste, and stirring is conducted while acid is added; 4, in the stirring process of the lead paste and the acid, the temperature in the paste mixing box is monitored in real time through a temperature sensor, when the temperature reaches 88 DEG C, an air door is opened, supplementary heating is conducted in the paste mixing box, and when the temperature reaches 93 DEG C, the air door is closed; and 5, when the apparent density of the lead paste reaches 4.40-4.50 g/cm < 3 >, stirring is stopped to finish the preparation of the lead paste. The temperature can be adjusted by opening and closing the air door, the temperature during manu