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Waste plastic recovery and granulation method and device thereof

A technology of waste plastic and granulation device, which is applied in coating and other directions, can solve the problems of uneven color, performance and size of plastic particles, easy adhesion of plastic particles, high production cost, and achieve uniform size, no noise pollution, no noise pollution, no Effects of dust pollution

Inactive Publication Date: 2018-04-17
连云港海润包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of industry, the application of plastic products has spread all over the fields of industry, agriculture and daily life. The waste plastic products processed every day in the world are immeasurable, which puts a lot of pressure on the environment. The most common way to recycle waste plastics is Recycling and granulation, the traditional process is to crush and clean the recycled waste plastics, and then extrude them through the screw for granulation. This granulation method will not only produce noise pollution, dust pollution, water pollution, but also the obtained plastic The particles are easy to bond, and the plastic particles are not uniform in color, performance and size, and the quality of the particles is poor, which leads to high production costs and low returns for enterprises

Method used

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  • Waste plastic recovery and granulation method and device thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The method for recycling and granulating waste plastics comprises the following steps:

[0034] Soak the recovered waste plastics in cleaning agent for 30-60 minutes, then wash them with clean water and dry them;

[0035] The dried waste plastics are pulverized and then melted, and a plastic modifier is added to modify the molten liquid;

[0036] The modified molten liquid is sent into the prilling tower 21, and after being distributed by the distributor 3, the molten liquid becomes liquid droplets and falls into the water tank 4 to form plastic particles, and the plastic particles enter the cooling box 9 through the feeding pipeline 19, and the cooled The plastic granules are sent into the storage bin 11 by the distributing device 10 to obtain plastic granules recovered from waste plastics.

[0037] The water flowing out of the cooling box 9 and the storage bin 11 enters the water purification pool 15, and after being purified by the water purification pool 15, it is ...

Embodiment 2

[0046] The waste plastic recycling and granulation device includes a granulation tower 21, a cooling box 9, and a storage bin 11. The upper part of the granulation tower 21 is provided with a distributor 3, and the distributor 3 is connected to the injection port 1 to make The lower part of the grain tower 21 is provided with a water tank 4, and the water tank 4 and the cooling box 9 are connected through a feeding pipeline 19. The inside of the cooling box 9 is provided with a distributing device 10, and the outlet of the cooling box 9 is connected with the storage bin 11.

Embodiment 3

[0048] The waste plastic recycling and granulation device includes a granulation tower 21, a cooling box 9, and a storage bin 11. The upper part of the granulation tower 21 is provided with a distributor 3, and the distributor 3 is connected to the injection port 1 to make The lower part of the grain tower 21 is provided with a water tank 4, and the water tank 4 and the cooling box 9 are connected through a feeding pipeline 19. The inside of the cooling box 9 is provided with a distributing device 10, and the outlet of the cooling box 9 is connected with the storage bin 11.

[0049] Furthermore, the said feeding pipe 19 is provided with a double-screw feeding propeller 5 inside, and the double-screw feeding propeller 5 is composed of two screw rods whose helical teeth 23 mesh with each other.

[0050] Further, the feeding pipeline 19 is inclined upward at an angle of 10-30° with the horizontal direction, and the double-screw feeding propeller 5 is driven by the motor 6 .

[00...

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Abstract

The invention discloses a waste plastic recovery and granulation method and a device thereof, and belongs to the field of plastic granule production and processing technologies. According to the invention, problems of high cost and severe pollution in the prior art are solved. The method of the invention comprises the following steps: washing recovered waste plastic, drying and fusing, and modifying the fused solution by adding a plastic modifier; sending the fused solution into a granulation tower, distributing by a distributor to turn the fused solution into liquid drops and letting the liquid drops fall into a water tank to form plastic granules, letting the plastic granules enter a cooling tank through a feeding pipeline, and sending the cooled plastic granules into a storage bin through a feed divider so as to obtain the finished product plastic granules. The waste plastic recovery and granulation device comprises the granulation tower, the cooling tank and the storage bin. The upper part of the granulation tower is provided with the distributor which is connected to a sprue. The water tank is arranged below the granulation tower. The water tank and the cooling tank are connected through a feeding pipeline. The feed divider is arranged inside the cooling tank, a discharge port of which is connected to the storage bin. The method and the device of the invention can be usedfor recovery and granulation of waste plastic.

Description

technical field [0001] The invention relates to a method and a device for recycling and granulating waste plastics, belonging to the technical field of plastic granule production and processing. Background technique [0002] With the development of industry, the application of plastic products has spread all over the fields of industry, agriculture and daily life. The waste plastic products processed every day in the world are immeasurable, which puts great pressure on the environment. The most common way to recycle waste plastics is Recycling and granulation, the traditional process is to crush and clean the recycled waste plastics, and then extrude them through the screw for granulation. This granulation method will not only produce noise pollution, dust pollution, water pollution, but also the obtained plastic The particles are easy to bond, and the plastic particles are not uniform in color, performance and size, and the quality of the particles is poor, which leads to h...

Claims

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Application Information

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IPC IPC(8): B29B17/00B29B9/10B29B9/16
CPCB29B9/10B29B9/16B29B17/00B29B2017/0015Y02W30/62B29B7/66B29B7/38B29B7/885B29B9/065B29B17/0026B29B17/02B29B2017/0293B29B17/04B29B2017/0224
Inventor 徐丽君
Owner 连云港海润包装有限公司
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