Our PVC pipe recycling solution is efficient and environmentally friendly, including shredding, crushing, pelletizing and drying. PLC intelligent system realized high automatic, the whole line just needs 2-3 man to operate. With 25 years of experience in recycling, WANROOETECH not only mastered the key technology but also improved machine designs to address specific product features. WANROOETECH offers recycling solutions that are high output and low energy consumption.

 

Why do we need to recycling PVC pipes?
In the production of daily PVC pipes, it is difficult to occur due to unstable machine and equipment or human factors. Due to the difficulty of degradation of the PVC pipe, the landing material is directly discarded and the environmental pollution is directly discarded. At present, most manufacturers will not recycle the landing material. Even if some enterprises do recycle and use it use. However, the particle size of the particles after the landing material is crushed, and the use uniformly when using it will have a certain impact on the quality of the product. And during the crushing collection of PVC pipes, if there is no dust collection device, there will be more small dust grains in the atmosphere. It is not easy to sink into the air, causing some pollution in the air, and affecting people’s health. Therefore, how to make the landing materials in PVC pipes more effectively crushed and recovered in grades, and the maximum dust collection, improve the quality of landing materials, and reduce environmental pollution is a problem that needs to be solved in the industry.

 

How to recycling PVC pipe?
PVC is short for polyvinyl chloride and it is one of the most widely used polymers in the world. PVC pipes are common PVC products in the plastic industry. But how to dispose of used PVC pipes? Recycling, incineration and burial methods are three main solutions. Also, PVC pipe recycling is very common for the PVC industry to reuse the used PVC pipes. Because the thermoplastic PVC pipe can simply be reground, pulverized and returned to the extrusion process to make new pipe. That means used PVC can become new source material through a mechanical recycling process that grinds plastic into a powder base for new products. The whole mechanical recycling process contains many size reduction machines like PVC pipe shredders. PVC pipe recycling can help to enhance resource efficiency, save raw materials and reduce emissions and landfill.

 

PVC pipe recycling process:
The PVC pipe recycling generally has two forms, one is PVC pipe shredding crushing grinding, PVC pipe shredder is optional for customers with larger output requirements, and the other is pvc pipe cleaning granulation, for PVC pipe is dirty, you can choose to clean first and then granulation.

 

Option 1. PVC pipe recycling shredding crushing and pulverizer
Flow Process: PVC pipe shredder–PVC pipe crusher–PVC pulverizer machine

PVC pipe recycling shredding crushing and pulverizer video:

 

Option 2. PVC pipe recycling washing and pelletizing machine
First, the waste plastic PVC pipe fittings will be recycled, and then processed through a series of processing technology; second, processed into pipes through extrusion molding, so as to achieve the recovery and recycling of waste PVC plastic, which has a very important value for the protection of the environment.

 

After recovery, waste PVC pipes need to go through pre-sorting, crushing, wind selection, cleaning, two-step flotation separation, drying, granulation and other processes, followed by batching, kneading and extrusion molding.

 

(1) Pre-sorting: The plastic that is not PVC is selected, and some impurities are also sorted out in this process. After pre-sorting, the PVC is basically sorted out, but due to its composition, many impurities are mixed in the next process.

 

(2) Crushing: Shear type of plastic crusher is chosen for crushing, which can achieve full crushing through the impeller collision in the crusher. After that, it is further crushed by cone ball mill to make the particles finer.

 

(3) Sorting: The wind screening device is selected for airflow sorting. After crushing, the wind screening device for screening, the waste PVC plastic products will be crushed, and then the crushed plastic into the hopper of the sorting device, open the fan, the wind direction has a horizontal or vertical, so that the plastic fragments use the relative density difference and the different resistance to air, spraying out, falling to different distances and their own separation.

 

(4) Washing: After sorting that is the purification stage, that is, the washing of waste PVC plastic. Scrap PVC first needs to be pre-washed, also known as rough washing, in order to remove contaminants such as sand, stones and other debris to avoid damage to cutting knife blades or mechanical equipment in subsequent processing such as granulation. The washing is done with a washing solution with a concentration of 1% at 80°C in order to remove impurities such as paper, PP, PE, PS, etc. contained in the used PVC pipes. In order to avoid the influence of such substances on the quality of recycled pipes. Rough washing followed by fine washing, two washing makes the purity of plastic particles greatly improved, which is beneficial for later molding and processing of products.

 

(5) Flotation: flotation is carried out twice after drying. The principle of flotation is based on the selective fixation of the particles to be separated on the basis of bubbles, and in the natural state, most plastics are hydrophobic, i.e. floatable.

 

(6) Drying in the secondary drying is used in the hopper-type hot air plastic dryer.

 

(7) Granulation After the previous process granulation is carried out so that the plastic becomes tiny particles that meet the specifications to be processed, and finally the formed granules are stored in the granule box for backup.

 

(8) Kneading After drying, some additives need to be added to the raw materials, and the raw materials need to be mixed evenly before extrusion to ensure that the properties of the extruded products meet the requirements. In this design, a high-speed kneader is used.

 

(9) Extrusion molding The above process is the preparation work of extrusion molding. The extrusion method was chosen for processing plastic hard pipes. The extrusion molding process mainly uses a twin-screw extruder, shaping device, spray water tank, roller tractor and cutting machine. Extrusion molding is the best method for manufacturing pipes and the process is simple. Therefore, the extrusion molding process was chosen.

 

(10) According to the process flow of the pipe, a suitable production plant was arranged.

 

Wanrooetech provides PVC pipe recycling solutions, according to your recycling PVC pipe, provide customized recycling services to meet your different needs, we will help you save investment costs and labor costs, and we have professional engineers one-on-one to help you solve your questions, contact us now!

 

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