Multi-frequency negative pressure sludge decomposition mechanism

The utility model discloses a multi-frequency negative pressure sludge decomposition mechanism which is characterized by comprising a sludge filtering tank and a plurality of vertical longitudinal partition plates which are arranged in the sludge filtering tank in parallel, a water inlet is formed in one side of the sludge filtering tank, and a water outlet is formed in the other side of the sludge filtering tank. The water inlet is higher than the water outlet, a gap is formed between the lower part of the first of two adjacent longitudinal partition plates and the tank bottom, the upper part of the first of the two adjacent longitudinal partition plates is fixed with the tank top, the second of the two adjacent longitudinal partition plates is fixedly connected with the tank bottom, and a gap is formed between the upper part of the second of the two adjacent longitudinal partition plates and the tank top; regular or irregular convex marks are arranged on the wall face of each longitudinal partition plate. T