Urban garbage and sludge resource comprehensive utilization system

Abstract

The invention discloses an urban garbage and sludge resource comprehensive utilization system. Urban garbage is fed into garbage feeding/sorting equipment (1) and, after primary sorting, primary rough crushing and primary screening, is divided into two parts: oversize materials and undersize materials. The oversize materials include paper and paper plastic composite materials left after air separation and secondary sorting and plastic, wherein the paper and paper plastic composite materials are fed into paper pump recovery equipment (2) to recover high-quality paper pulp; the waste plastic is fed into waste plastic oil producing equipment (3) for recovering fuel oil by low-temperature catalytic pyrolysis, and the slag (active carbon powder) is used in waste gas purification equipment (50) directly. The undersize materials include inorganic materials and organic materials, which are separated by secondary screening by a vibrating screen, wherein the inorganic materials are fed into a baking-free brick production equipment (6), dried, crushed and added with ingredients such as coagulator to produce baking-free bricks; and the organic materials are mixed with sludge from sludge feeding equipment (4) in a ratio and then fed into organic fertilizer production equipment (5) for producing organic fertilizers by special processes such as high-temperature high-pressure degradation and microbial fermentation.

Description

technical field [0001] The present invention relates to a set of comprehensive utilization system of urban garbage and sludge resources. The system can utilize all "waste" such as urban garbage and sludge that have long troubled urban construction and development as resources, and produce pulp, fuel oil, organic compound fertilizer and Unburned bricks and other products. The system belongs to the field of environmental protection and solid waste treatment. Background technique [0002] Municipal waste is the general term for solid waste generated by urban residents in daily life, solid waste generated in public places, road cleaning materials of sanitation departments, and some construction waste; sludge is a product of urban sewage treatment, which is composed of organic debris, bacteria An extremely complex heterogeneous body composed of solids, inorganic particles, colloids, etc. With the rapid development of the economy, the acceleration of urbanization and the continu...

AI Technical Summary

Problems solved by technology

If the organic components and sludge of the garbage can be degraded/digested (also known as hydrolysis and fermentation) through high-temperature and high-pressure reactors, and the subsequent organic fertilizer production technology can be used to produce high-quality organic compound fertilizers suitable for crop growth; The waste paper, plastic and their composite materials in the garbage are produced through the beating process to produce high-quality pulp, and the scarce resource fuel oil is obtained through low-temperature catalytic cracking. Th

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