Separating device for soil micro-plastics
A separation device and microplastic technology, which can be used in measurement devices, plastic recycling, analysis materials, etc., can solve the problems of high cost, poor practicability, and complicated operation, and achieve the effects of low cost, good practicability and simple process.
Pending Publication Date: 2022-02-08
FOSHAN UNIVERSITY
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Problems solved by technology
[0007] The purpose of the present invention is a separation device for soil microplastics, which aims to solve the technical problems of poor practicability, high cost and complicated operation of the oil-water separation device in the prior art
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[0025] The present invention will be further described below in conjunction with drawings and embodiments.
[0026] This embodiment provides a separation device for soil microplastics, including figure 1 The sieve soil digestion device shown and the figure 2 In the flotation separation circulation device shown, the soil samples are screened and digested by the soil sieve digestion device, and then sent to the flotation separation circulation device, where the microplastics are separated by flotation.
[0027] Specifically, see figure 1 , the sieve soil digestion device is a box structure, which is sequentially provided with a soil inlet 1, a sieve assembly, a digestion plate 6 and an oscillator 71 from top to bottom; a digestion chamber 5 is formed between the digestion plate 6 and the sieve assembly , the bottom of the digestion plate 6 is connected to the oscillator 71; the soil sample is filled through the inlet 1, the soil sample enters the soil sieve digestion device, ...
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The invention provides a separation device for soil micro-plastics. The device comprises a soil screening and digestion device which is sequentially provided with a soil inlet, a screening assembly, a digestion plate and an oscillator from top to bottom, wherein a digestion chamber is formed between the digestion plate and the sieving assembly; and the bottom of the digestion plate is connected with the oscillator; and a flotation separation circulating device which is used for separating micro-plastics in the soil sample and comprises a first-stage flotation chamber, an oscillator, a stirrer, an ultrasonic cleaning machine, a separation chamber, a recovery chamber and a flotation liquid tank, and the first-stage flotation chamber comprises a first-stage flotation inner chamber and a first-stage flotation outer chamber arranged outside the first-stage flotation inner chamber in a sleeving mode. The separation device is used for separating micro-plastics, the steps of soil screening of the screening assembly, oscillation of the oscillator, digestion of the digestion plate, stirring of the stirrer, cavitation of the ultrasonic cleaning machine, multi-layer filtering and the like are sequentially carried out, flotation liquid is recycled among all the structures through the liquid guide pipes, the recovery rate is high, and therefore the separation device is low in cost, simple in process, high in operability and high in practicability.
Description
technical field [0001] The invention belongs to the technical field of separation of microplastics, in particular to a separation device for soil microplastics. [0002] technical background [0003] We are now in an era of "plastics". Plastic products are widely used in various fields, and their output and waste are increasing year by year. Extensive use of plastics has resulted in plastics and their derivatives in the environment polluting the atmosphere, ocean and land. Solid particles with a particle size of less than 5 mm formed from large pieces of plastic through ultraviolet radiation, collision wear, or industrial production are called microplastics. Some scholars have also proposed that they are called microplastics with a particle size of less than 1 mm. Microplastics are insoluble and persistent, and are mainly divided into spherical particles, films, fragments and fibers according to their morphology. Car tire wear, daily life and laundry, industrial processes (...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G01N1/28G01N1/34G01N1/40G01N1/44B29B17/02
CPCG01N1/28G01N1/34G01N1/4077G01N1/44B29B17/02G01N2001/4088B29B2017/0248B29B2017/0224B29B2017/0289B29B2017/0293Y02W30/62
Inventor 李浩亮梁琪椿雷孝李卓雨程明琨萧洪东陈文胜喻敏施卫明
Owner FOSHAN UNIVERSITY