A kind of ink sludge harmless resource treatment process and system

Abstract

The invention belongs to the technical field of environment protection, and particularly relates to a printing ink sludge harmless recycling treatment process and system. The characteristic that printing ink sludge contains a lot of carbon black and organic matter is fully taken into consideration, a high-temperature pyrolytic process is adopted in an airtight environment to completely pyrolyze the printing ink sludge after being dried, and generated high-temperature pyrolysis gas contains a lot of inflammable gas; a dedusting device is adopted to remove dust in the high-temperature pyrolysisgas, a condensing device is adopted to obtain bio-oil from gaseous oil and vapor which can be condensed and liquiefied in the pyrolysis gas with the help of an oil-water separation device, and purified fuel gas is obtained after gas which cannot be condensed is purified through a fuel gas purifying device; both the bio-oil and the purified fuel gas are obtained from the printing ink sludge and canbe reutilized for harmless treatment of the same to provide most energy for the drying process, and the short part is supplied by the outside. The treatment process realizes harmless recycling of theprinting ink sludge; waste is used to treat waste, so that the treatment process is economical and environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and more specifically relates to a process and system for harmless and resourceful treatment of ink sludge. Background technique [0002] Ink sludge is produced in the printing industry. With the continuous development of the printing industry, the discharge of ink sludge has gradually increased, and the pollution to the environment has become more and more serious. Ink sludge is composed of ink, inorganic particles, and various organic substances. Due to different ink raw materials, types, and production processes, the ink sludge produced has complex components. [0003] At present, the ink sludge is mainly treated by sanitary landfill and incineration. However, the landfill method needs to occupy a large amount of land area, and the pollutants produced are difficult to deal with. Since the ink sludge contains chlorine compounds, the incineration method is prone to produce diox...

AI Technical Summary

Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a harmless and resourceful treatment process and system for ink sludge, which fully combines the characteristics and treatment requirements of ink sludge, and is targeted at the treatment of ink sludge The treatment process and equipment are redesigned, and a harmless and resource-based treatment process and treatment system for ink sludge is proposed accordingly, so as to solve the problem that the existing ink sludge can not meet the environmental protection requirements by landfill or incineration question

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