10 Questions You Should to Know about pvc cable crushing washing line

Sourcing guide for PET washing and recycling lines: Mass production high quality r-PET bottle flake

PET (polyethylene terephthalate) is a material widely used in the manufacture of plastic bottles. However, large quantities of discarded PET bottle flakes can cause serious pollution to the environment.

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The use of PET recycling and cleaning lines has therefore become essential. With washing lines, waste PET bottle flakes can be transformed into high-quality recycled material, enabling recycling and reducing the need for new raw materials.

What points should you focus on in a PET bottle washing line？

a.Determining capacity requirements: Determine the capacity requirements of the washing line based on the expected number of PET flakes to be processed

First, we need to determine your capacity requirements. Please let me know how many PET flakes you expect to process per hour in order to determine the capacity requirements for your cleaning line.

By accurately assessing your capacity requirements, we can select a washing line with sufficient capacity to ensure efficient production and meet market demand.

b.Consider washing efficiency: choose a machine with efficient cleaning and separation functions to improve the quality of the recovered material

A key step in the recycling of PET bottle flakes. Our washing line equipment uses process steps such as friction washing, rinsing, flotation and density separation to effectively remove contaminants, adherents, grease and other impurities.

In addition, our machines have the flexibility to handle a diverse range of PET bottle flakes to meet market demands.

c.Consider adaptability: ensure the line can handle different types and sizes of PET bottle flakes

When choosing a washing line, you should consider its adaptability.

Different types and sizes of PET bottle flakes may vary in size, shape and material. Ensure that the line is flexible and able to handle a wide range of PET flakes to meet market demands.

d.Ease of operation and level of automation: choose a PET bottle washing line that is easy to operate and maintain, with a high level of automation to increase productivity

Excellent washing line equipment is easy to operate and maintain, reducing operator training costs and equipment downtime.

In addition, the high level of automation of the equipment increases productivity and product consistency, further improving the quality of the recycled material.

The most critical process step in washing and recycling PET bottle

a. Crushing and pre-washing: Selecting the right crushing equipment and pre-washing system to remove contaminants and adherents

In a PET bottle washing line, crushing and pre-cleaning are important steps in the start-up phase. you should select the appropriate shredding equipment and pre-washing system to ensure that contaminants and adhesions are thoroughly removed from the surface of the PET bottle flakes to provide a good basis for the subsequent process steps.

b. Cold and hot thermal washing: choosing the appropriate washing method and selecting different washing equipment and processes according to requirements

Cold washing and hot washing are the common cleaning methods used in PET bottle washing lines. They use different temperatures and chemical solvents in the cleaning process, with some equipment differences and differences in the final cleaning effect.

Cold washing: Cold washing is the process of using water or solvents at ambient temperature for cleaning. This type of cleaning is usually suitable for general contaminants and adherents and can be removed by steps such as friction washing and rinsing. Cold cleaning equipment usually includes water tanks, spray systems and filtration units.

Thermal washing: Also called hot washing. Thermal washing is a process that uses heated water or steam for cleaning. By increasing the temperature of the cleaning medium, hot washing can be more effective in removing grease, colour and other difficult to remove contaminants. Thermal washing equipment usually includes heating systems, spray or immersion systems and heat exchange units.

c. Sorting and separation: PET bottle washing lines should use advanced bottle flake sorting technology to ensure efficient cleaning results.

For example, optical sorting systems allow for fast and accurate separation of different colours and types of PET bottle flakes.

Sorting is a key step in PET washing lines. By using efficient sorting equipment and separation technology, contaminants, foreign bodies and other non-compliant particles can be effectively removed from the PET flakes.

These sorting machines can screen and separate based on characteristics such as colour, shape and density, thereby improving the quality and purity of the recovered material.

d. Friction washing and rinsing: choose a quality friction washing and rinsing system to ensure thorough removal of residues and chemicals

Friction washing and rinsing are also important washing steps in a PET bottle washing line.

You should choose a good quality friction washing and rinsing system to ensure that residual contaminants and chemicals are completely removed from the surface of the PET flakes and to guarantee the quality and reusability of the recycled material.

e. Flotation and density separation: efficient flotation and density separation processes are used to remove grease, labels and other impurities

Flotation and density separation are key separation process steps in PET bottle washing lines.

By using efficient flotation and density separation technology, grease, labels and other impurities can be effectively removed from PET bottle flakes, improving the quality and purity of the recovered material.

f. Drying and sieving: consider efficient drying and sieving technology to ensure that the moisture content and particle distribution of the recovered material meets the requirements

Drying and screening are necessary steps in the final stage of a PET bottle washing line.

You should consider the use of efficient drying and screening technology to ensure that the moisture content and particle distribution of the recovered material meets the requirements of the market.

Flotation and density separation are the key separation process steps in a PET washing cleaning line.

By using highly efficient flotation and density separation technology, grease, colour and other impurities can be effectively removed from PET flakes, improving the quality and purity of the recovered material.

Summary:
By choosing the applicable washing method (cold or hot washing) and equipping it with the appropriate cleaning equipment and processes, you can achieve higher cleaning results and remove more contaminants and adherents, thus improving the quality and reusability of the PET bottle flake recycling material.

At the same time, you should also choose the right washing solution for your washing needs and objectives, taking into account equipment differences and cost effectiveness.

Quality control and testing

a. Using advanced quality control methods: ensuring that the washing line equipment is able to monitor key indicators such as particle size, colour and residue content

The use of advanced quality control methods in the production of PET washing lines is an important factor in ensuring consistent quality of recycled material.

We suggest you should choose washing line equipment with advanced technology that can monitor key indicators such as particle size, colour and residue content.

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These indicators can be monitored and controlled in real time with equipment such as in-line sensors, optical inspection systems and colour analysers to ensure the production of high quality recycled material.

b. Implementing routine testing procedures: Establishing appropriate laboratory testing and quality inspection processes to carry out the necessary physical and chemical analysis of the recovered material

In addition to quality control of the equipment, you should also establish routine laboratory testing and quality assurance procedures.

These procedures can include the necessary physical and chemical analyses of the recovered material, such as tests for particle morphology, melt index, melt flow, etc.

Through these testing procedures, it can be ensured that the quality of the recycled material meets the customer’s requirements and market standards.

Cost-effectiveness considerations

a. Equipment price and performance comparison: compare the price and performance of equipment from different suppliers to find the best value for money

When selecting PET bottle washing line equipment, you need to compare the price and performance of equipment between suppliers.

This can help customers find the best value for money equipment and ensure they meet your expectations in terms of return on investment.

Also, you should take into account factors such as price, features and quality of the equipment and communicate and consult fully with different suppliers.

b. Energy and maintenance costs: evaluate the energy consumption and maintenance requirements of the PET bottle washing line and select equipment that will provide long-term cost efficiency

In addition to the price of the equipment, you should also assess the energy consumption and maintenance requirements of the washing line equipment.

Choosing equipment that offers long-term cost effectiveness will reduce energy consumption and operating costs, as well as reducing the cost of maintenance and repair of the equipment.

You should request relevant data and information from the supplier to enable a full cost-benefit analysis to be carried out.

c. Service and support: consider the supplier’s level of service and support, including pre-sales service, in-sales support and after-sales service

In the procurement process of PET bottle washing recycling line equipment, the supplier’s service and support is a very important consideration.

Please consider the supplier’s pre-sales service, in-sales support and after-sales service levels. This includes the supplier’s capabilities in terms of equipment selection, installation and commissioning, operator training and after-sales maintenance.

It is worth highlighting that Nicety Machinery Co., Ltd is a highly respected manufacturer of PET recycling washing line equipment and is known for its excellent pre-sales, in-sales and after-sales services.

We offer professional pre-sales consultation to help customers select the right equipment for their needs. At the mid-sales stage, we provide comprehensive technical support and assistance to ensure smooth delivery and installation and commissioning of the equipment.

In addition, we offer a comprehensive after-sales service including training, equipment maintenance and spare parts supply to ensure that customers receive timely support and assistance during use.

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 recycling process of PVC pipes is mainly divided into two categories. In cases of high production demand, PVC pipes are first crushed into fragments using a shredder, followed by grinding, screening, and grading to obtain uniform PVC particles. If the PVC pipe is relatively dirty, it needs to be cleaned to remove the dirt first, and then crushed, dried, granulated, screened, and graded to obtain clean PVC particles. Both recycling processes involve key steps such as collection and sorting, subsequent processing, screening and grading, as well as storage and transportation, to ensure the quality and reuse value of the recycled materials.

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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