Magnetic separation device and method for ash agglomerating cinder during coal gasification course

Abstract

The invention relates to a magnetic separation device and a method used in ash gathering slack during the course of gas generation. The magnetic separation device of the invention comprises a feed device, a flexible connecting piece, a shaker feeder, a rubber roll, a ultra-thin wear-resistant transmission belt, a plate pole pretreatment device, a high field intensity permanent magnetism roll, a distribution plate, a case body, a low-magnetic agent blanking hopper, a high-magnetic agent blanking hopper and a frequency conversion retarding machine. The invention is characterized in that the feed device is connected with the shaker feeder through the flexible connecting piece. A first-stage pre-magnetization and magnetic separation structure consists of the frequency conversion retarding machine, the driving high field intensity permanent magnetism roll, the rubber roll, the transmission belt, the plate pole pretreatment device and the adjustable distribution plate. The plate pole pretreatment device is merely arranged at a middle position between the permanent magnetism roll and the rubber roll. The structure of a second-stage and a third-stage pre-magnetization and magnetic separation is the same with the structure of the first-stage pre-magnetization and magnetic separation. But the second-stage and the third-stage pre-magnetization and magnetic separation have not the plate pole pretreatment device. The invention has the multiple advantages of high magnetic density, low energy consumption and no environment pollution and is environment-friendly, consumption-reducing and benefit-increasing.

Description

technical field [0001] The invention belongs to the technical field of coal gasification, and in particular relates to a magnetic separation device and method for ash fusion coal slag in the coal gasification process. Background technique [0002] my country is rich in coal resources, but the overall efficiency of coal utilization technology is low and the pollution is serious. [0003] In order to meet the major demand for clean and efficient utilization of coal in my country, strengthen the basic research on large-scale high-efficiency entrained entrained bed coal gasification technology, fill in the theoretical research gap in this field in my country and the world, and form a scientific basis to support technological leapfrogging, will already have independent property rights It is very urgent and necessary to promote entrained bed coal gasification technology to large-scale and high-efficiency. Large-scale entrained entrained coal gasification technology with high effic...

AI Technical Summary

Problems solved by technology

[0005] At present, coal gasification technology is being gradually promoted in China, but the related magnetic separation technology of ash agglomeration and coal slag has not yet seen industrial application at home and abroad

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