Method for physically sorting and upgrading honing waste of oil-containing cylinder sleeve

A cylinder liner and honing technology, applied in chemical instruments and methods, solid separation, wet separation, etc., can solve the problems of easy inclusion of fine-grained alloy substances and impurities, low efficiency of sorting and upgrading process, and achieve potential energy and Increased activity, increased probability of particle dispersion, and improved metal recovery

Inactive Publication Date: 2020-04-07
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the characteristics of the cylinder liner honing waste in the prior art due to its fine particle size, wide distribution range, high oil content, valuable substances wrapped in oil, fine particles of alloyed substances and impurities, the efficiency of its sorting and upgrading process is low , the purpose of the present invention is to provide a method for degreasing, gravitational field / magnetic field / ultrasonic field synergistically strengthening the sorting and upgrading of alloy state materials to oily cylinder liner honing waste, the method realizes the process of cylinder liner honing waste Low-cost, high-efficiency upgrading of alloyed substances

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0024] Use cylinder liner honing waste with TFe55% and oil content 20% as raw material, its particle size is less than 100 mesh, accounting for 95% by mass, and less than 200 mesh, accounting for 60% by mass, firstly cleaned with ethanol solution , the liquid-solid ratio is 10:1, the cleaning time is 5min, the solid sample is obtained by liquid-solid separation, and the solid sample is re-selected by a shaking table to obtain a gravity-separated concentrate, which is then separated by magnetic separation with a magnetic separation intensity of 400Gs and ultrasonic The generating rod is placed in the center of the magnetic field action area, the diameter of the ultrasonic generating rod is 0.6cm, the ultrasonic power is 100W, and the ultrasonic frequency is 40kHz. The magnetic separation concentrate slurry is separated from solid and liquid to obtain magnetic alloy powder. The recovery rate of metal iron in the whole process is as high as 85.4%.

Embodiment 2

[0026] Use cylinder liner honing waste with TFe65% and oil content 10% as raw material, its particle size is less than 100 mesh, accounting for 99% by mass, and less than 200 mesh, accounting for 70% by mass, firstly washed with acetone solution , the liquid-solid ratio is 5:1, the cleaning time is 30 minutes, the solid sample is obtained through liquid-solid separation, the solid sample is re-selected through the chute to obtain the gravity-separated concentrate, and the concentrate is separated by magnetic separation, the magnetic separation intensity is 1000Gs, and the ultrasonic generation The rod is placed at the upper 1 / 4 position of the magnetic field action area, the diameter of the ultrasonic generating rod is 1.5cm, the ultrasonic power is 30W, and the ultrasonic frequency is 40kHz. The magnetic separation concentrate slurry is separated from solid and liquid to obtain magnetic alloy powder. The recovery rate of metal iron in the whole process is as high as 86.2%.

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Abstract

The invention discloses a method for physically sorting and upgrading oil-containing cylinder sleeve honing waste. The method comprises the following steps: cleaning the honing waste of the cylinder sleeve by using an organic solvent, reselecting, and carrying out magnetic separation under effect of both an ultrasonic field and a magnetic field to obtain magnetic concentrate, namely an iron alloypowder product with low impurity content. The method is simple in process, high in efficiency and low in cost, and the iron alloy powder with high additional value can be directly obtained; and the method is particularly suitable for upgrading the honing waste of the cylinder sleeve with high oil stain content and wide particle size distribution range.

Description

technical field [0001] The invention relates to a method for physically sorting and improving the quality of oil-contaminated cylinder liner honing waste, in particular to a method for obtaining magnetically separated alloy powder by using re-selection, ultrasonic field and magnetic field to synergistically strengthen the physical sorting and upgrading of honing waste, which belongs to solid state The technical field of waste resource pretreatment. Background technique [0002] The cylinder liner is the cavity where the piston is placed on the cylinder block of the internal combustion engine. It is the orbit of the piston movement, and the gas burns and expands in it to keep the engine running normally. In order to maintain the tightness of the contact between the cylinder and the piston and reduce the friction loss of the piston moving in it, the inner wall of the cylinder should have high machining accuracy and precise shape and size. [0003] Cylinder body materials are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00
CPCB03B7/00
Inventor 韩桂洪刘兵兵黄艳芳张莉黄宇坤朱广丽薛毓斌
Owner ZHENGZHOU UNIV
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