Method and device for coking by coke tar residue and blended coal

Abstract

The invention relates to the technical field of waste oil residue treatment, in particular to a method and a device for coking by coke tar residue and blended coal, which mainly solve the technical problems that the coke oil treatment cost is high and the environment is polluted. The technical scheme is as follows: the method for coking by coke tar residue and blended coal is characterized by comprising the following steps: coke tar residue is conveyed to a sealed feeding tower by a coke tar residue tank in a steam heating and thermal insulation way; materials are conveyed by a spiral feeder; and the coke tar residue is accurately added into the blended coal through the interlocking control of spiral feeding electric valve and belt operation, wherein the ratio of the coke tar residue is controlled between 0.3% and 0.5% of the weight of the blended coal. The invention is mainly used for treating coke tar residue of coke plants.

Description

Technical field: [0001] The invention relates to the technical field of waste oil residue treatment, in particular to a method and device for blending tar residue with coal and coking, which is mainly used for the treatment of tar residue in a coking plant. Background technique: [0002] Coking plant tar residue is a viscous solid waste residue with coal tar adsorbed in the production process, mainly composed of polycyclic aromatic hydrocarbons, hydrocarbons, phenol and naphthalene, coal powder, and coke powder. It is extremely viscous at room temperature and is difficult to use directly. It is a pollutant that is difficult to treat and pollutes more seriously. [0003] Over the years, due to the lack of corresponding tar residue treatment technology, domestic coking plants usually use the following three ways to dispose of it: (1) directly mix it into coking coal blending for coking; (2) transport it to rural areas for free or at a very low price as Earth kiln fuel use. 3...

AI Technical Summary

Problems solved by technology

The problem is that the processing process is complicated, more ingredients such as diluent and stable dispersant are needed, and it is finally used as fuel, and the added value of utilization is low

[0007] There are also experiments and explorations through direct coal blending in China, but due to the viscosity of tar residue, it is difficult to directly blend accurately, which makes the quality of coke fluctuate, so there is no long-term stable operation

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