PET shredding presented by: Valeria Martínez Ochoa, Luisa Perdomo Villar, Santiago Restrepo Arango, Juliana Restrepo Henao PET Polyethylene terephthalate, is a thermoplastic polymer resin of the polyester family. It is a highly versatile plastic that can be used in a variety of applications, from food and beverage packaging to clothing and textiles. PET is a clear, strong, and lightweight material that is resistant to moisture, chemicals, and impact. PET IN COLOMBIA In Colombia, 15,000 tons of PET waste are generated in a year and only 30% of it is recycled. PET recycling is a process that goes through several stages PICKING PRE-WASH DRYING TRITURATION EXTRUSION BOTTLE MAKING Issue identified Generation of microfilaments between 0.1 to 5 mm Decrease in the quality of recycled material. • Damage to the machinery used • They can make a part of the recycled material unusable, which can cause a loss of material and a decrease in the efficiency of the PET recycling factory. • Potentially harmful to health and the environment. Microfilaments can occur due to several factors, such as the quality of the input material, the recycling process, and the machinery used. • Emphasis on washing input raw material • Use of high quality chemical products to adequately decontaminate PET containers. • Use the shredding machinery indicated for the process, in addition, that it is well calibrated.. Challenge to develop The challenge consists of grinding and transporting 2.25tm/h of PET bottles that are going to be recycled, reducing the amount of microfilaments generated to a minimum, since they are unwanted components for the creation of products. Equipment Knife mill Motor power (KW) 37-45 (KW) Voltage (V) 220V/380V/415V/600V Dimensions LxWxH 1950x1900x2250 Capacity (ton/h) 2-3 t/h Fixed blades (Units) 10 Weight (kg) 1800 Price US 1000$ Shipping Cost since China until Guarne US 815$ Advantages and Disadvantages Advantages 1. Powerful size reduction 2. Perfect adaptation to the application needs at variable speed. 3. Quick and easy cleaning 4. Defined final fineness 5. Wide range of accessories 6. The highest security standards 7. They have great robustness and ventilation inside. 8. Constructed in D2 stainless steel or high carbide alloys. Disadvantages 1. Not suitable for high thicknesses 2. Not suitable for very resistant materials 3. Does not admit foreign elements: metals, stones, etc. 4. High maintenance of blades: they must be kept very sharp at all times. Single shaft shredder Engine power (KW) 37 (KW) Voltage (V) 220V- 380V Main shaft speed (rpm) 78rpm Dimensions LxWxH 2430x1720x2480 Capacity (kg/h) 5000kg/h Hydraulic power (KW) 3 Mesh diameter (mm) 30-80 Fixed blades (Units) 2 Weight (kg) 5000 Cutting Chamber Dimension (mm) 800*800 WPS800 models Price US 10,000$ Shipping Cost since China until Guarne US 987.31$ Advantages and Disadvantages Advantages 1. Densely arranged and efficient crushing shaft: For light material with low density, to meet the demand for high performance. 2. Integrated arc pressing technology: It is very important for single shaft crusher. It does not need a guide rail, so it generates fewer accidents and high cutting efficiency. 3. Upper hydraulic maintenance door open 4. The single shaft shredder is equipped with a six-frame display that is used to control the size of the discharge. Disadvantages 1. Because of the speed it drives, it can cause accidents if you don't know how to operate the equipment. 2. It can be expensive to acquire 3. If you don't have power you can't use it. Hammer crusher Motor power (KW) 5.5KW Material Stainless steel Feed opening size (mm) 100*200 Max Feed Size (mm) 80 Dimensions LxWxH (mm) 700x750x800 Weight (kg) 6.5kg Capacity (t/h) 2-5 Model PC300 x 200 Price US 1500$ Shipping Cost since China until Guarne US 831.35$ Advantages and Disadvantages Advantages 1. They are easy to use. 2. They have the possibility of working with any material. 3. It is a lower initial investment 4. Daily maintenance can be done. 5. Most of the particles extracted or produced with this mill are spherical and will have a polished finish. 6. It is capable of producing a wide range of particle sizes.. Disadvantages 1. They are very noisy. 2. There is a source of energy loss because it produces a lot of heat. 3. It is very energy deficient compared to other mills. 4. Not suitable for high thicknesses. 5. The minimum granulometry cannot be controlled. High dispersion of the granulometry. 6. It can generate a lot of dust Belt conveyor Product name Conveyor Belt Systems Motor power Material Stainless steel Belt material PU/PVC Motor Power 0.2KW-10.5KW Conveying speed (0.1-30)m/min Dimension (L*W*H) 3m*1.5m*0.85m Weight 50kg Price US 299.00$ per meter Shipping Cost since China until Guarne US 652,70$ Inclined conveyor belt Product name automatic and high quality 1000kg/h Ep Rubber Conveyor Belting Motor power (KW) 2.2KW Material Rubber Dimension (L*W*H) 3m*1.5m*0.85m Weight 1200kg Capacity 1000kg/h Price US 800$ Shipping Cost since China until Guarne US 690.81$ Advantages and Disadvantages Advantages 1. Transport capacity 2. Adaptation to the type of terrain and versatility 3. Low energy consumption 4. Minimum degradation of the transported material 5. Easy maintenance. Disadvantages 1. Dependence on an electric motor 2. Conveyor belts have a set capacity, so if production increases, this capacity cannot be changed. 3. The tape can be damaged by impact very commonly. Pneumatic vacuum conveyor for vertical transport Power (W) 2.2KW Material Stainless steel Voltage 220V/380V/415V/440V/460V Width or diameter 300mm Dimension (L*W*H) 1600*1100*1250mm Weight (kg) 300kg Air consumption 0.6L/min pressure 0.5Mpa Nominal capacity 2.5 tm/h Flexible and continuous feeding feature Price US 4000$ Shipping Cost since China until Guarne US 696.29$ Pneumatic Vacuum Powder Conveyor Power (W) 1.5KW Material Stainless steel Voltage 400v 440v Width or diameter 600mm Dimension (L*W*H) 1200*1500*850mm Weight (kg) 100kg Nominal capacity 3 tm/h Model ZKS-5 Price US 2000$ Shipping Cost since China until Guarne US 617.91$ Advantages and Disadvantages Advantages 1. It can transport materials over long distances and at high speeds 2. It is a closed system that avoids exposure of the transported material to the environment and reduces the amount of dust and pollutants in the air. 3. It can be used to convey a wide variety of materials, including dry, wet, fine, coarse, brittle, and cohesive materials. Advantages and Disadvantages First one Second one 1. The capacity is very tight with respect to the 1.Meets requirements, can even carry challenge, it is not recommended more than required, perfect for future 2. It's bigger, so it takes up more space factory growth. 3. The diameter of the pipe is smaller, so it is 2. It is smaller, so it requires less space. understandable that it has a smaller capacity 3. the diameter of the pipe is larger, 4. It is more expensive, in addition, it consumes allowing more material to be carried. more energy 4. It is cheaper than the first one. 5. It has less guarantee 5. It has an extended guarantee. 6. It is heavier. Thank you!
