Plasticine Mixing Production Line

Project Background
ACRILEX TINTAS ESPECIAIS S.A., a valued long-standing customer of SIEHE Group, began our partnership in 2018 with a high-speed disperser and continued in 2019 with a kneader. The equipment has been running smoothly over the years. Based on the pleasant cooperation and full recognition of SIEHE Group's rapid development, we have embarked on our third collaboration—a plasticine mixing production line for the production of eco-friendly children's plasticine, targeting the world-renowned stationery and office supplies manufacturer Maped.

Project Overview
Location: Brazil
Raw Materials: Wheat flour, Starch A, Starch B, Sodium Chloride
Finished Product: Plasticine
Capacity: 2000 kg/day

Process Flow
The integrated system consists of a powder unloading and feeding system, batching and conveying system, mixing system, discharging system, and cleaning system.
1）Powder Unloading & Feeding System
Two sets of discharging and feeding stations for both small bag and ton bag with two vacuum suction devices.
The integrated discharging and feeding station lifts the ton bag to the equipment inlet, where a pneumatic massage and tapping device assists in emptying the bag into a small bag hopper (directly pouring small bagged raw materials), and the material is then conveyed to the storage tank via vacuum.
One vacuum conveyor transfers material from discharging station 1 to silos A and B, while another transfers material from unloading station 2 to silos C and D.
Due to the corrosive nature of sodium chloride, equipment in contact with it is made of SS316L, while other powder contact parts are made of SS304.

2）Batching & Conveying System
4 screw conveyors are used for the conveying and batching of powder, the inverter controls the precise feeding, and the tracking compensation can reduce the error of batching.
Incremental batching is used, with weight sensors sending signals to the PLC to achieve automatic feeding of 4 kinds of materials.
The bottom of the batching bin is equipped with retractable devices and covers (aluminum), allowing for relatively enclosed unloading with the mixing tank.

3）Track System
The track system includes positions for 2 mixers, 2 extruders, 1 batching position, and 1 washing position. A turntable on the track facilitates the movement and rotation of the mixing tank. The extruder part is equipped with safety fence to protect moving parts.

4）Mixing & Discharging System
After the material arrives at the mixing tank, it is transported to the mixing position via the track. Due to the high solid content of the material, a dual-planetary mixer is recommended, featuring multi-layer paddle-style agitators for low-speed mixing, providing strong kneading force and excellent mixing results for high-viscosity and high solid content materials. The mixer is equipped with a spray head for adding liquids according to the material condition.
The mouth of the tank is matched with the sealing cover of the mixer to ensure the vacuum working environment and achieve the effect of defoaming.
After mixing is complete, the mixing tank moves to the extruding position via the track to work with the extruder for discharging. The extruder is a three-cylinder, lifting type that lifts the cylinder to a certain height for discharging, facilitating connection with the next process.

5）Cleaning System
The high-pressure tank washing machine uses high-pressure spray nozzles to clean the mixing tanks, effectively removing residues of high-viscosity materials, ensuring cleaning effectiveness while improving production efficiency and reducing labor intensity.

Conclusion
International transportation capability is one of the important indicators to measure the strength of a company. SIEHE Group has carefully planned the logistics plan, using professional packaging materials to fully protect the equipment, ensuring the safety and stability of the entire transportation process. From China to Brazil, the shipping distance is far. To reduce the customer's transportation costs, we will provide structural platform design drawings for local fabrication.
We will also send engineers to guide on-site installation and commissioning to ensure the equipment operates at its best condition. This clay dough mixing line features automated powder batching, track operation, and touch screen one-touch operation, with a high degree of intelligence. The batching accuracy is high, with minimal manual intervention and convenient operation. The workshop has less dust and a better working environment.