Water-filter-type biological fermentation drying tower

Abstract

The invention relates to a water-filter-type biological fermentation drying tower. The water-filter-type biological fermentation drying tower comprises at least one fermentation chamber, wherein the top portion of the fermentation chamber is provided with a feed inlet and the bottom portion of the fermentation chamber is provided with a discharge outlet; a percolation type drainage system is installed at the bottom portion of the fermentation chamber, and materials are placed on the upper surface of the percolation type drainage system, and a drain outlet of the percolation type drainage system is communicated with the outside; a discharge groove is formed in the middle of the percolation type drainage system; a screw conveyer is arranged in the discharge groove and the screw conveyer pushes the materials to the discharge outlet; a sliding rack system for moving the materials into the discharge groove is arranged on the upper surface of the percolation type drainage system; the middle portion of the side wall of the fermentation chamber is provided with at least one air supply hole and the air supply hole is communicated with the outside through an air supply system; the side wall of the fermentation chamber is further provided with an exhaust hole connected with an exhaust system. The device has the advantages that the working environment is good; the aerobic fermentation is controlled; the material flow process is smooth; the working environment is obviously improved and the like, and is applicable to sludge dehydration of rural and urban sludge plants, manure water treatment of livestock farms and the like.

Description

technical field [0001] The invention relates to a water filtration type biological fermentation drying tower. Background technique [0002] At present, my country's urban sewage treatment facilities have been completed in large and medium-sized cities, county-level towns have been basically completed, and townships are under construction. As of the end of September 2011, a total of 3,077 sewage treatment plants have been built nationwide, with a total treatment capacity of more than 136 million meters 3 / day, the total processing capacity of projects under construction and already built is expected to reach 167 million meters 3 / sky. The output of dewatered sludge in these sewage treatment plants has also increased sharply, and the annual output of dewatered sludge in my country has reached more than 34.8 million tons. [0003] Due to the slow construction of dewatered sludge treatment and disposal facilities, nearly 80% of the dewatered sludge in the country has not been...

AI Technical Summary

Problems solved by technology

[0004] Dewatered sludge biological fermentation and drying treatment devices of urban sewage treatment plants have emerged as the times require. Now most of them are strip-stack fermentation, there are also drum-type fermentation, straight-fall tower fermentation, etc., but there are some

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