Patent ID: 6932094

Claim:
A slurry tank autocleaner, comprising: a frame having at least a first opening, a second opening, a third opening, a fourth opening and a fifth opening, wherein the fourth opening faces up; a cover disposed on the frame and covering the fourth opening, wherein the cover has at least a first nozzle, a second nozzle and a third nozzle; a first pipe disposed around the cover and connecting the first nozzle, the second nozzle and the third nozzle; a container disposed in the frame and below the fourth opening, wherein the bottom of the container has a sixth opening; a chemical supply means disposed in the frame, wherein the chemical supply means has a chemical supply pipe and a chemical recycling pipe; a first air valve disposed in the frame and connecting the chemical supply pipe; a second air valve disposed in the frame and connecting the first air valve by means of a second pipe; a pure water pipe connecting a pure water source and the second air valve through the first opening; a first gas pipe connecting a first gas source and the second air valve through the second opening; a third pipe having a first open end, a second open end and a third open end, wherein the first open end connects the first valve, the second open end is located above the third opening and connects the first pipe, and the third open end is located above the fourth opening; a fourth nozzle disposed on the third open end of the third pipe; a third air valve disposed in the frame and connecting the sixth opening of the container by means of a fourth pipe; a fifth pipe connecting the third air valve and the chemical recycling pipe; a sixth pipe connecting the third air valve and a drain system through the fifth opening; and a controller for controlling the movement of the first air valve by means of a first controlling line, the movement of the second air valve by means of a second controlling line and the movement of the third air valve by means of a third controlling line.