Mechanical filter-press microwave coupled dehydration drying integrated device

Abstract

The invention relates to a mechanical filter-press microwave coupled dehydration drying integrated device. The mechanical filter-press microwave coupled dehydration drying integrated device comprisesa sludge inlet pump (7), a sludge inlet pipe (6), a high-pressure mechanical dehydration device (1), a high-pressure air pump (2), an air return pipe (4), a negative pressure heating device (5), a filtrate draining pipe (9) and a microwave wall breaking drying device (8), wherein a sludge inlet of the sludge inlet pipe (6) is provided with the sludge inlet pump (7); a tail board (1-11) of the high-pressure mechanical dehydration device (1) is connected with the sludge inlet pipe (6); the filtrate draining pipe (9) is arranged at the lower end of the high-pressure mechanical dehydration device(1) and is connected with a draining hole of the high-pressure mechanical dehydration device (1) through a metal hose; an air inlet of the negative pressure heating device (5) is connected with the high-pressure mechanical dehydration device (1) through a pipeline; a high-pressure air pump (2) is arranged at an inlet of the air return pipe (4) and is connected with a microwave heating device (8) through a pipeline.

Description

technical field [0001] The invention relates to the field of sewage sludge treatment, in particular to a mechanical filter press microwave coupling dehydration and drying integrated device. Background technique [0002] Municipal sludge is the product of sewage treated by sewage treatment plants. It is a heterogeneous body with high water content composed of organic debris, bacterial cells, inorganic particles, etc. It is difficult to dehydrate by ordinary methods. [0003] The early sludge treatment devices include plate and frame filter press, drum centrifuge and belt filter press. After dehydration by these equipment, the moisture content of the sludge is generally about 75%, and the moisture content of these sludges is still very high. For The transportation and cost are high, and it cannot be directly disposed of in the landfill. If it is placed for a long time, the germs surviving in the sludge will exceed the standard, and it will be perishable and produce stench, cau...

AI Technical Summary

Problems solved by technology

There are several problems in the existing technology: 1. Microwave conditioning, mechanical dehydration, and drying are different stages, and separate equipment needs to be equipped, which makes the whole system complicated and cumbersome; 2. The sludge particles after microwave conditioning increase, and then After shearing and conveying by the pump, the large particles of sludge are broken into small particles, which affects the dehydration performance; 3. The current microwave drying consumes a lot of energy, and the heat energy is not fully utilized.

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