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

A coal blending coking and tar residue technology, applied in the field of waste oil residue treatment, can solve the problems of no long-term stable operation, low value-added utilization, fluctuations in coke quality, etc., to prevent sedimentation and stratification, improve fluidity, and reduce corrosion Effect

Inactive Publication Date: 2010-10-20
SHANGHAI MEISHAN IRON & STEEL CO LTD
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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

Method used

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

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Embodiment Construction

[0029] A method for blending tar residue with coal for coking, comprising the following steps: transporting tar residue through a tar residue tank to a sealed feeding tower, heating and transporting with steam, conveying materials through a screw feeder, and running through a screw feeding electric valve and a belt The chain control accurately adds the tar residue to the blended coal, so that the tar residue can be used reasonably. The above-mentioned steam is superheated steam, which maintains the temperature of the tar residue at 60-80°C, enhances the fluidity of the tar residue, and stabilizes the delivery effect. The above-mentioned transport of materials by the screw conveyor can control the flow rate of the tar residue relatively accurately, and can control the proportion of the tar residue at 0.3-0.5% of the coal blending weight. The above-mentioned screw feeding and belt interlocking control, the schematic diagram of screw feeding and belt interlocking control is as fo...

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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...

Claims

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Application Information

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IPC IPC(8): B09B3/00
Inventor 任学延张文成
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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