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Cleaning methods of plastic recycling

Views: 19     Author: Site Editor     Publish Time: 2023-03-01      Origin: Site


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Cleaning methods of plastic recycling

There are two methods of cleaning and drying waste plastics: mechanical cleaning and manual cleaning. Some plastic products can only use manual cleaning after recycling, while some plastic products can use mechanical cleaning and drying. The following is the specific operation of mechanical cleaning and drying. Mechanical cleaning and drying and divided into intermittent and continuous two.

Here is the content:

  • Intermittent cleaning

  • Continuous Cleaning

  • Use of automated cleaning equipment

Intermittent cleaning

Firstly, put the waste plastic into a water tank to rinse, and use a plastic recycling machine to remove the loose dirt adhering to the plastic surface, such as sand, mud, etc., so that it sinks into the bottom of the tank; If there are a lot of wood chips and paper pieces, it can be further purified in the sedimentation tank equipped with a special pump; For the firmly attached dirt, such as printing ink, paper labels coated with a binder. The larger pieces can be picked out manually first, and then crushed in the plastic grinder. After soaking in a hot alkaline solution tank for some time, and then through a plastic recycling machine stirring to make the mutual friction collision to remove the dirt. Finally, the cleaned crushed waste plastic is sent into the centrifuge to shake dry and dried with two steps of hot air to residual moisture ≤ 0.5%.

Continuous Cleaning

The waste plastics are sent into the plastic recycling machine crusher by conveyor belt for coarse crushing and then sent to the chunk separation section, where the sand and gravel, etc. are sunk into the bottom and sent away regularly. The uplifted materials are fed into the wet mill by conveying rollers and then into the sedimentation tank, where everything heavier than water is separated. Even the tiniest particles, to achieve the best effect of cleaning.

Use of automated cleaning equipment

(1) With a certain sorting capacity;

(2) Use hot water spray cleaning;

(3) partition cleaning, and graded filtration, improve the efficiency of the use of cleaning water.

The automatic cleaning equipment is composed of two independent devices, one is the left vibrating sieve cleaning device, which is used for pre-washing of PET bottle flakes; The other is the right automatic cleaning device with three independent cleaning zones. Then sent from the left end of the automatic cleaning device through the conveyor, hot water from the top of the device sprayed into the rotating spiral conveyor will PET bottle flakes to the right end of the transport while playing the role of turning. The cleaning plastic recycling machine wastewater in the lower tank of three independent partitions flows to the filtering device, and the three filtering devices from the left end to the right end are divided into 400-200μm, 200-100μm, and 100-20μm. To improve the efficiency of the plastic recycling machine using the cleaning water, new hot water for cleaning is sprayed in from the top of the cleaning partition at the far-right end of the device and collected in the lower tank after cleaning.

ACERETECH has conducted several tests on this product before leaving the factory, and the quality is guaranteed. If you are in the related business, you can consider our cost-effective plastic recycling machine.

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