A filter type biological fermentation drying tower

Abstract

A filter-type biological fermentation and drying tower, comprising at least one fermentation chamber, the top of the fermentation chamber is provided with a feed port, and the bottom is provided with a discharge port; the bottom of the fermentation chamber is equipped with a percolation drainage system, and the material Placed on the percolation drainage system, the outlet of the percolation drainage system communicates with the outside world; a discharge trough is arranged in the middle of the percolation drainage system; a screw conveyor is provided in the discharge trough, and the screw conveyor The conveyor pushes the material to the discharge port; the upper surface of the percolation drainage system is provided with a carriage system for dialing the material into the discharge trough; the middle part of the side wall of the fermentation bin is provided with at least one air supply hole , the air supply hole communicates with the outside world through the air supply system; the side wall of the fermentation bin is also provided with an exhaust hole connected to the exhaust system. This device has good working environment, controlled aerobic fermentation, and logistics process It is suitable for the treatment of dewatered sludge in urban sludge plants and manure from livestock farms.

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 problems, such as occupying a large area, Arching of the shed, poor logistics process, uncontrolled aerobic fermentation, unable to effectively discharge the precipitated water, unable to effectively turn the pile, unable to effectively measure temperature, poor working environment, etc.

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