Hot air refluxing apparatus and hot air refluxing process for injection molding drier

Abstract

The invention provides a hot-air reflux device for an injection-molded drier and a hot-air reflux treatment technology, wherein the hot-air inlet end and the hot-air outlet end of the hot-air reflux device of the invention are respectively connected with the air inlet and the air outlet of an injection-molded drier, a static generator is arranged on one side of the inlet end, the hot-air reflux device is provided with metal electrodes which respectively are a high-field positive electrode and a high-field negative electrode, and the left side and the right side on the lower end of the metal electrodes are respectively provided with foreign matter withdrawers for recycling settlement foreign matters. The invention receives hot waste air which is exhausted from the injection-molded drier through utilizing the hot-air reflux device, and makes suspended substances in the hot waste air take with charges through the static generator, and the suspended substances with the charges shift to the two electrodes under the effect of a high-voltage electric field, and then deposit in the foreign matter withdrawer, and finally hot air which is purified is delivered to the injection-molded drier through a hot air pipe, thereby conducting the reflux utilization for hot waste air, being clean and environment-friendly, and saving electricity loss.

Description

technical field [0001] The invention relates to the technical field of injection molding drying, in particular to a hot air recirculation device and a hot air recirculation treatment process capable of recirculating and recycling hot waste gas. Background technique [0002] At present, the hot exhaust gas discharged from the general injection molding dryer is discharged to our side. These exhaust gases are usually toxic to a certain extent, which seriously affects our health and causes great damage to the environment. On the other hand, the injection molding dryer needs to dry the plastic material, usually the cold air blown by the blower is heated to a very high temperature to achieve the drying effect, which will cause a lot of waste of power consumption. [0003] If the hot exhaust gas discharged from the injection molding dryer can be reflowed for hot air drying, it will not only save most of the electric energy, but also prevent harmful hot gas from being discharged int...

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Problems solved by technology

[0004] In order to solve the technical defects of the toxic and harmful hot exhaust gas discharged from the existing injection molding dryer, which are seriously polluted, high power loss, and high cost, the present invention proposes a hot air return device for the injection molding dryer, which has reasonable components and can make the hot exhaust gas Return and recycle, thereby reducing environmental pollution and reducing energy consumption

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