TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: An airtight fermentation space is formed by the expansion cylinder in the horizontal position and sealed cover at the entry side by positioning a sealing device at the entry side, and the sealed cover and sealing device at the exit side. The charging hole is equipped with a feeding gate relative to the inside of the sealed cover of the expansion cylinder in the horizontal position, and the discharging hole is equipped with a discharging gate. The aerobic fermentation reactor comprises an expansion cylinder in the horizontal position, a rolling ring fixed on the cylinder and coaxial with the cylinder, a rotary driving device and a wheel unit. The expansion cylinder is equipped on the wheel unit through the support of the rolling ring, and rotated on the wheel unit through the driving device. The height of the wheel unit is adjustable. The included angle axes of the cylinder and water level is 0-5 degrees , which is adjustable. The expansion cylinder in the horizontal position is equipped with a material shoveling plate, which is parallel to the axes of the cylinder, or the material shoveling plate forms an angle with the axes of the cylinder and forms a spiral, or the material shoveling plate is divided into a front part and a rear part which are respectively form a reverse angle with the axes and form a reverse spiral. The rotary driving device of the aerobic fermentation reactor is formed by a gear driving device or a friction driving device. The gear driving device comprises a motor, a coupler or belt drive unit, a reducer and a pinion. The pinion is meshed with an in-line gear ring, which drives the cylinder to rotate. The friction driving device comprises a motor, a belt drive unit, a reducer, a coupler and an axle. The riding wheel in the riding wheel unit is a main driving wheel. The riding wheel is connected with the rolling ring of the cylinder, which drives the cylinder to rotate. The inlet and exhaust air system comprises an aerobic fermentation reactor, a fan and a pipeline. The air outlet hole of the aerobic fermentation reactor is connected with a deodorization device through an air pipe. The air inlet pipe of the aerobic fermentation reactor is equipped with an air heating device. The air heating device is a heater or heat exchanger in the circulating water system. The circulating water system comprises aerobic fermentation reactor, a supplementary heat source, a heat energy load, a pump, a valve and a connecting pipe. The water outlet pipe of the water jacket of the aerobic fermentation reactor is connected with the water inlet pipe of the pump. The water outlet pipe of the pump is connected with a magnetic valve of the supplementary heat source. The water outlet pipe of the magnetic valve of the supplementary heat source is connected with the water inlet pipe of the supplementary heat source. The water outlet pipe of the supplementary heat source is connected with the water inlet pipe of the water jacket. The supplementary heat source is equipped with a bypass circuit, which is equipped with a supplementary heat source bypass magnetic valve. The circulating water system is equipped with a heat exchanger for heating air on the water outlet pipe of the aerobic fermentation reactor. The circulating water system is cascaded with a heat energy load on the water outlet pipe of the aerobic fermentation reactor, The water in the water outlet pipe of the aerobic fermentation reactor is divided into two paths, where one is connected with the circulating water return pipe through the supplementary heat source bypass magnetic valve, and the other one is connected with the circulating water return pipe through the heat energy magnetic valve and heat energy load.