Why You are recommend to use Honeycomb rotor dehumidifier?
Poor molding of plastic products mostly comes from poor dehumidification and drying. U.S Plastic Association recommends that the plastic prior to molding must be dried to the water content of 0.02% and below. For defects including poor transparency, sticky pouring channel, blurs, bubble, bullion, flow mark, crack, poor dimension stability, internal stress and insufficient product physical strength, the cause of most of them is that the plastic is not fully dehumidified and dried, Particularly, highly soaking plastic including PET. PBT. PA. and PC requires drying equipments with a super low dew point (Dewpoint-40℃)
The Drying principle of Honeycomb rotor dehumidifier.
The MTAD Series dehumidifying dryer was engineered and designed to effectively remove moisture (in the vapor state)from hygroscopic plastic resins.This process is a ccomplished by the continuously rotating desiccant wheel and the three air streams(Process, Regeneration, Cooling).The Process return air is exposed to ana dsorbing media(desiccan twheel) in a sealed air stream, where the desiccant adsorbs the moisture from process air.After the desiccant has adsorbed the moisture,it is exposed to a Regeneration air stream which has been pre-heated to a temperature of about(190°C). This causes the moisture to be driven out from the desiccant and prepares it for more moisture adsorption.Now the desiccant media passes through third air stream called cooling air stream. Here the desiccant media is cooled down by some of the process air before entering back into the process to provide for better performance.The three air streams(process,regeneration and cooling)are separated by special Teflon fabric coated silicon seals. The process air and regeneration air is compressed by using regenerative blowers.
The dry air from the dryer is then heated and the air temperature is controlled in an electric heater, located either in the cabinet on the smaller sizes or this heater islocated at the drying hopper on larger sizes or on a central drying system with more than one hoppers. The hot dry air enters the hopper at the bottom and dries the resin in the hopper. The air from the top of the hopper is returned to the dryer,where it is filtered, cooled in a cooling coil and the process blowers ends the air back to the dryer again to be dried.
Dongguan Mitex Automation Machinery Co., Ltd. is the manufacturer that specializes in supplying the best advanced roboticized systems for plastic molding. Our main products include: centralized feeding system, dehumidifying dryer, automatic metering and mixing device, granulator, mold-temperature controller, etc. Those have been applied in electron, plastic molding, auto, medical treatment, computer accessory, optics lens, hardware, etc.
Mitex has been consistently pursuing independent innovation for different devices and adhering to the best service & high quality. Our company has established steady cooperative fellowships with its clients.
Dongguan Mitex Automation Machinery Co., Ltd. was registered in July, 2007, in Dongguan, Guangdong, China. Mitex will focus more on satisfying client's needs, supplying the advanced molding system & service, reducing cost and creating more value for customers, sharing win win between clients and us.