Method and device for refining oil from papermaking waste

Abstract

The invention provides a method and a device for refining oil from papermaking waste. The method comprises the following steps: sorting waste plastic in the papermaking waste by utilizing sorting equipment; smashing and melting the waste plastic, and conveying the treated waste plastic into a reaction kettle; adding metal oxide in the reaction kettle, stirring and mixing the metal oxide with the waste plastic, and carrying out catalytic cracking reaction, thus obtaining oil gas and ash; cooling the oil gas obtained through catalytic cracking through a calandria condenser, thus obtaining a liquid-state oil product; inputting and storing the liquid-state oil product into an oil storage tank, and conveying uncooled oil gas as fuel into a burner. According to the method provided by the invention, a technology for obtaining the oil gas through a technical method of combining pretreatment of the waste plastic with the catalytic cracking is adopted, so that the problem of environment pollution caused by emission of the papermaking waste in the prior art is overcome, the whole structure is scientific, reasonable, simple and compact, a final goal of carrying out harmless, stable, minimizedand resourceful treatment on the papermaking waste can be realized, and better social benefit, better environmental benefit and better economic benefit can be obtained; the method is widely suitable for matching use of the papermaking waste treatment.

Description

technical field [0001] The invention relates to chemical machinery and equipment, in particular to a method and device for refining papermaking waste. Background technique [0002] Recycled papermaking of waste paper will produce a large amount of papermaking waste, which contains a large amount of waste plastics and pulp. These papermaking wastes not only cause environmental pollution, but also restrict the development of the recycled paper industry; This treatment method has high investment and is easy to cause secondary pollution. At present, there are production equipment for refining oil from waste plastics in China, but the equipment cannot be continuously produced, the energy consumption is high, and the problem of exhaust gas and waste residue emission cannot be solved, which leads to production. Secondary pollution, so how to effectively solve the problem of papermaking waste discharge is of great significance. Contents of the invention [0003] In view of the ab...

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Problems solved by technology

[0003] In view of the above situation, the purpose of the present invention is to provide a papermaking waste oil refining method, which adopts the technology of obtaining oil and gas by combining the pretreatment of waste plastics with the process of catalytic cracking so as to overcome the problem of environmental pollution caused by papermaking waste discharge in the prior art, and can realize The recycling and reuse of papermaking waste is conducive to environmental protection, and the overall structure is scientific and reasonable, simple and compact, easy to install and use, has a broad market prospect, and is easy to promote and use

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