1. Turn on the inlet water pump to inject water, adjust the position of the outlet weir plate, and adjust the liquid level in the air flotation machine to be in the middle of the mud guide plate.

2. Close all control valves, turn the electrical knob switch to the automatic position, and start the water pump. At this time, the air compressor also enters the automatic working state, and then open the water inlet valve, water outlet valve and control valve of the lifting water pump in sequence, and the pressure of the pressure gauge gradually rises. , generally it should reach 0.4-0.5MPa

3. Open the water control valve of the dissolved air tank, so that the dissolved air water is released into the air flotation tank through the releaser, and a large number of fine air bubbles appear in the air flotation tank, making the water turn milky white, and the dissolved air system That is normal, the higher the dissolved gas pressure, the higher the density of the dissolved gas bubbles released. The gas of the dissolved gas system is provided by the air compressor. As the dissolved air water continuously takes away the air in the tank, the air in the tank gradually decreases and the water level rises. When the water level rises to a certain position, the float level gauge will control the air compressor to work so that there is enough air in the tank.

4. Dissolved gas water: First, tap water is used as the reflux water for the dissolved gas water. When it is normal, the treated clean water is used as the reflux water. If the amount of detergent in the wastewater is large and the foam is large, which affects the air flotation effect, water can be used all the time.

5. After the scum accumulates to a certain thickness, start the foam scraper to scrape the scum.

6. Shutdown is, first turn off the inlet water pump. When the scum is cleaned, close the scraper and turn off the dissolved air pump.

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