Case Sharing of Central Conveying System

Founded in 1990, one Jiangxi Bio-Technique Co. Ltd certificated by State Drug Administration is mainly specialized in producing disposable medical and health supplies. With headquarters in Shenzhen, it is the only high-tech enterprise engaged in this field. In this application, it has planed 30 sets of injection molding machines for this new factory, and the customer finally selected Shini products after overall consideration on believing of our professional knowledge and years of installation experiences as well as Shini brand strength.   

The customer uses a wide range of materials, mainly including PET, ABS, PC, PP, PE, PS, PVC in different marks and varieties. After discussion and classification, the material room has employed13 Shini storage tanks of MST-400. Among which, there are 5 single pipe shut-off boxes SBU-160-50S-V on the bottom of 5 storage hoppers to feed two sets of Dehumidifying Dryers and three sets of Hopper Dryers. And another 8 hoppers mainly contain materials that are unnecessary to dry for back up. Its workshop’s total dosage is one ton per hour, and each IMM collocates with one set of SHR-12U Hopper Dryer fixed on collective hopper’s top of the IMM’s inlet. Ten IMMs equipped with Shini Volumetric Doser can satisfy master-batches of different outputs adding by the customer. The blower room adopts four sets of Taiwan Longtie Roots Blowers SRB-80-V collocating with three sets of high precision Central Filter SCSF-200-F-E to supply air for drying machine room and the workshop. The customer separated the blower room in one unit for convenient dust recycling and avoidance of material contamination. Two sets of Dehumidifying Dryers and three sets of Dryers placed on the second floor that are rightly facing the material room on the first floor, reducing material conveying distance and power consumption. 

After drying and dehumidifying, some materials without drying will be conveyed to material distribution station through shut-off suction box, and then will be conveyed to the vacuum hopper on each IMM after distribution. Adopting vacuum separating valve, with a cylinder and a battery valve, it controls the fluidity of suction-pipe airflow by a rubber diaphragm, achieving the control of air supply. The full-closed conveying process without contamination ensures cleaning workshop.

It monitors the whole conveying system via operation panel by a set of Central Control Station SCCS-300-G-C-10.4”. The large size colorful LCD touch panel conveniently controls the working statue of all stations. It has been three months since the system put into operation, and it didn’t show any of quality issue or design problems, which was well received by the customer. In future, we would offer more central plans with benefits and better services to the customer.