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A kind of technology that waste oil is used for flotation

A technology for waste oil and grease, used in flotation, solid separation, etc., can solve the problem of high moisture content of concentrates, improve economic benefits, reduce moisture content of concentrates, and save the aeration link.

Active Publication Date: 2019-03-29
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to provide a process for flotation of waste oil, aiming to solve the problem of utilization of waste oil such as waste oil and hog oil, and to solve the problem of high moisture content of concentrate in the flotation process

Method used

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  • A kind of technology that waste oil is used for flotation

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Embodiment 1

[0033] Such as figure 1 As shown, a kind of waste grease is used for the device of flotation, comprises grease storage tank 2, and grease storage tank 2 is successively connected atomizing device 3, flotation machine 4, and described atomizing device 3 is pressure pump, shear pump, One of diaphragm pump, atomizer, and ultrasonic atomizer; the collection tank 6 of the flotation machine is connected to the first filter press 7, and the bottom of the flotation machine 4 is connected to the second filter press 8; the first filter press 7 The mineral outlet end of the second filter press 8 is connected to the belt 9, and the end of the belt 9 is a silo 10; the liquid outlet end of the first filter press 7 is connected to the grease storage tank 2, that is, the oil filtered out returns to the oil The storage tank is recycled.

[0034] In the above-mentioned device, the flotation machine 4 is a kind of mechanical agitation flotation machine or non-mechanical agitation flotation mach...

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Abstract

The invention discloses a waste oil flotation device and a process. The device comprises an oil storage tank; the oil storage tank is connected with an atomization device and a flotation machine in sequence; a collecting tank of the flotation machine is connected with a first filter press; the bottom of the flotation machine is connected with a second filter press; mineral outlet ends of the first filter press and the second filter press are connected with a belt; the end part of the belt is a bin; and a liquid outlet end of the first filter press is connected with the oil storage tank. The process comprises the following steps: treated liquid waste oil is atomized to enter the flotation machine to fully contact with substances to be selected in the flotation machine; the waste oil and non-polar substances are combined to form an oil layer; the upper oil layer is scraped out through a scraper to feed in the filter press; the filtered and pressed oil is returned to the oil storage tank for recycling; and solid substances obtained by pressing and filtration are selected substances. The process improves a flotation beneficiation process, saves an inflation link in foam flotation, solves the difficulty of high concentrate water content, and changes the waste oil to wealth.

Description

technical field [0001] The invention relates to a device and process for flotation of waste oil, in particular to a flotation process using waste oil such as waste oil and hog oil as a flotation medium. The utility model belongs to the technical field of waste oil recovery and utilization. Background technique [0002] With the improvement of people's living standards, household cooking and catering industry have developed rapidly, and a large amount of waste oil (including gutter oil, hog oil, etc.) is produced, and its safety hazards have been focused on by the society. Some waste oil is processed and refined into "edible oil" by unscrupulous traders through improper channels, and then enters the market and returns to the dining table. Owing to high-temperature oxidation of animal and vegetable oils will produce highly toxic aflatoxin, benzopyrene and other carcinogens, which will pose a huge threat to human health. Therefore, the comprehensive utilization of waste oil b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/016B03D1/12B03D103/08
CPCB03D1/016B03D1/12B03D2203/08
Inventor 张继龙崔杏雨张露雅
Owner TAIYUAN UNIV OF TECH
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