Separation device and separation method for polymer in soil
A separation device and separation method technology, applied in the restoration of contaminated soil, recycling technology, plastic recycling, etc., can solve the lack of soil polymer separation and analysis technology and other problems
Inactive Publication Date: 2017-08-29
SUN YAT SEN UNIV
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Problems solved by technology
Due to the lack of separation and analysis techniques for soil polymers, so far there are few studies on the environmental behavior and ecological effects of soils, especially agricultural soil polymers
Method used
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[0032] In order to further disclose the superiority of the present invention, the specific implementation is as follows:
[0033] A device for separating polymers in soil, comprising a first container with an inlet and an outlet; further comprising a second container with an inlet and a plurality of outlets; the second container is provided with a lifting agitator with adjustable speed; the first container The outlet of the second container is communicated with the inlet of the second container and is provided with a flow rate controller that controls the flow of the medium in the first container to the second container. The medium inlet of the first container at the inlet of the second container is in the shape of "Z" with a tapered slope. An outlet; and a lifting agitator that drives the second container to oscillate. The side of the second container is provided with outlets in different directions, respectively, and a separate filter communicating with the outlet, and a funnel-...
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Abstract
The invention discloses a device and a method for separating polymers in soil. The device comprises a first container with an inlet and an outlet, and also comprises a second container with an inlet and multiple outlets, and a stirrer which drives a medium in the second container to vibrate, wherein the outlet of the first container is communicated with the inlet of the second container, and a flow rate controller used for controlling a medium in the first container to flow into the second container is arranged at the outlet of the first container; a first container medium lead-in port at the inlet of the second container is a Z-shaped beveled sharp and fine outlet; outlets (multiple outlets) are respectively formed in different directions of the side surface of the second container, and filters communicated with the outlets are also formed on the sides of the second container; and a gentle slope funnel-shaped slag opening is formed in the bottom of a filter communicated with the outlet. According to the separation device, different types of polymers in the soil can be separated, and the types, states and behaviors of the polymers in the soil are known. Meanwhile, the device can be used for soil purification, the waste plastics are reutilized, the resources are saved, and the one-step separation purity of general polymers such as HDPE, PS, PC and PVC is over 80.4 percent.
Description
Technical field [0001] The invention relates to the technical field of polymer separation, in particular to a device and method for separating polymers in soil. Background technique [0002] The polymer in the soil usually refers to the raw materials of plastic particles that enter the soil environment through various channels. Large pieces of plastic waste are degraded by light and mechanically to form small plastic fragments, as well as polished plastic particles used in industrial production and plastic particle additives for daily necessities. Generally, it is plastic fragments or plastic particles with a size of millimeters or even micrometers. [0003] The types of polymers commonly used in soil include polyethylene (PE, 0.94-0.96g / cm 3 ), polypropylene (PP, 0.91g / cm 3 ), polystyrene (PS, 1.05g / cm 3 ), polycarbonate (PC, 1.18g / cm 3 ), polyvinyl chloride (PVC, 1.38g / cm 3 ), polyethylene terephthalate (PET, 1.38g / cm 3 ) And polyamide (PA, 1.38g / cm 3 )Wait. PE, PP, PS, PC, PVC,...
Claims
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IPC IPC(8): B09C1/04B29B17/02
CPCY02W30/62
Inventor 曾锋张霞
Owner SUN YAT SEN UNIV