Commercial treatment method and system for biological sludge and rotary sludge carbonizing machine

Abstract

The invention relates to resourceful treatment on biological sludge.A commercial treatment method for biological sludge includes the steps that the biological sludge is dried, the dried sludge with the water content being 7-10% is carbonized and generates biochar, pyroligneous liquor and biological tar through high-temperature pyrolysis, and biochar, pyroligneous liquor and biological tar are packaged for sale; methane gas generated in the treatment process is recovered and used for carbonization treatment on the dried sludge.According to a rotary sludge carbonizing machine, a handpiece component and a tail component are fixed to the two ends of a rack, the two ends of a rotary cylinder are inserted into the handpiece component and the tail component and matched with the handpiece component and the tail component in a sealed mode, and a supporting and driving mechanism matched with the rotary cylinder is arranged on the rack; a guiding plate is arranged on the front portion of the rotary cylinder, a lifting plate is arranged on the inner wall of the rotary cylinder, and a combustor is arranged in a heat preservation outer cover below the rotary cylinder.A commercial treatment system for the biological sludge comprises biological sludge drying treatment complete equipment and dried sludge carbonizing treatment complete equipment.The harmful biological sludge is turned into wealth, and the commercial treatment method and system for the biological sludge have high socioeconomic performance and can create huge wealth for enterprises and the society.

Description

technical field [0001] The invention relates to a biological sludge treatment method and system, in particular to a biological sludge commercial treatment method and system and a biological sludge processing equipment rotary sludge carbonization machine. Background technique [0002] As of the end of September 2015, a total of 3,830 sewage treatment plants have been built in cities and counties across the country, with a sewage treatment capacity of 162 million cubic meters per day, and more than 40 million tons of sludge with a water content of 80% are produced every year. 80% of the sludge produced by my country's sewage treatment plants has not been properly treated, and the pollution caused by the random stacking of sludge has attracted the attention of the society. The "Water Ten Measures" issued by the State Council clearly stipulates: "The existing sludge treatment and disposal facilities should basically complete the standard transformation by the end of 2017, and th...

AI Technical Summary

Problems solved by technology

The existing sludge drying treatment generally adopts indirect heating drying, the heat energy utilization rate and treatment efficiency are low, and the moisture content of the treated sludge is high, which brings difficulties to the subsequent incineration treatment; now large and medium-sized cities across the country are controlling air Pollution seriously restricts the promotion of sludge incineration technology

[0005] The rotary dryer has been widely used in cement, coal washing and other industries for decades. The heat energy utilization rate and drying efficiency of the drying materials are extremely high. The drying cost and the moisture content of the dried materials are extremely low. The technology is mature and the investment and low operating costs, the disadvantage is that it is not suitable for the drying treatment of biological sludge

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