Sludge drying/pyrolysis/gasification/incineration integrated treatment system

Abstract

The invention discloses a sludge drying / pyrolysis / gasification / incineration integrated treatment system which comprises a burning system, a drying system, a pyrolysis and gasification system and a fume cleaning system, wherein the burning system comprises a gas generator and an incinerator; the drying system comprises a blower and Stage 1-5 drying machines; the pyrolysis and gasification system comprises a pyrolysis gasifier and a separator; and the fume cleaning system comprises a dedusting devulcanizer, a draught fan and a chimney which are respectively connected with each other through pipelines. The integrated treatment system disclosed by the invention has the characteristics of high safety and reliability, energy saving, emission reduction, low carbon, environment friendliness, low operating cost and the like, and realizes reduced, stabilized, harmless and recycling treatment.

Description

technical field [0001] The invention relates to an energy-saving and environment-friendly equipment for safe disposal and resource utilization of solid waste (sludge), especially related to an integrated treatment system for sludge drying, pyrolysis, gasification and incineration. Background technique [0002] Since the "Eleventh Five-Year Plan", my country's sewage treatment industry has developed rapidly, and its daily treatment capacity has exceeded 100 million tons. The rapid growth of sewage treatment capacity and treatment rate has also brought about a rapid increase in sludge production. According to statistics, the annual sludge output of only urban sewage treatment plants in my country has exceeded 30 million tons, and there are still a large amount of industrial sludge. speed growth. [0003] Sludge is the sediment produced in the process of sewage treatment. It is a solid-liquid mixture composed of complex heterogeneous bodies such as organic debris, bacterial ...

AI Technical Summary

Problems solved by technology

For example, landfill not only wastes land, but also increases transportation costs and the difficulty of sludge seepage treatment; compost, because the sludge contains heavy metal elements such as zinc, copper, lead and cadmium, is restricted for use; power plants, cement plants Blended burning or manufacturing building materials, the amount of sludge mixed is only , affecting the combustion of boilers and kilns, and the operating cost is high; while sludge drying and incineration, in addition to the large energy consumption of the drying process, secondary pollution such as flue gas, fly ash, and slag after incineration is very serious

Images