| 摘要 |
An initial processing of natural raw rubber through an initial processing machine, comprising the steps of: (a) providing a coagulated latex which contains water and volatile compositions; (b) dewatering the coagulated latex through a screw-pressing process to remove free water; (c) forming a first pretreated latex material; (d) aging the first pretreated latex material through an aging process to remove water and volatile compositions; and (e) forming a final product of aged latex material. The screw-pressing process makes use of the temperature and pressure increase along the elongated channel structure. The aging process makes use of the further temperature and pressure increase of the rubber materials, together with the screwing effect of the screw-shaft component, the squeezing effect of the nozzle and additional heating at a particular location, which is around the mouthpiece of the nozzle to complete the aging process, which is energy saving, effective and efficient. |
| 主权项 |
1. A machine for initial processing of natural raw rubber, comprising:
a de-watering machine powered through a motor connecting to a reducer unit for providing a two-step de-watering process, comprising a vibration screen having first and second ends arranged for carrying out a first step of the two-step de-watering process, wherein coagulated latex granules are provided to said first end of said vibration screen which are then guided to transport from said first end to said second end of said vibration screen while going through the first step of dewatering process through said vibration screen; and a pressing screen connected to said vibration screen arranged for carrying out a screw-pressing process, wherein said pressing screen has an elongated body defining a pressing channel between first and second ends inside said elongated body, and comprises a screw unit inside said pressing channel and a nozzle operatively communicated with said screw unit provided at said second ends, wherein the latex granules received from said vibration screen are guided to propel and compress along said screw unit from said first end through said second end such that a pressure gradient between said first and second ends are built, defining a low pressure area towards said first end and guiding free water contained in the latex granules to flow towards said first end from said second end while transporting from said first end to said second end, wherein the latex granules are squeezed out of said pressing channel through said nozzle at said second end of said pressing screen such that the free water contained in the latex granules is further removed, resulting a first dehydrated latex; and an aging machine powered though a main motor connecting to a reducer unit and connected to said de-watering machine, comprising an aging unit having a first end and a second end which defines an aging channel, and comprising a screw shaft unit extended between said first end and said second end inside said aging channel which has a plurality of cutting threads provided thereon; a nozzle provided at said second end of said aging unit; and a heating unit positioned at said second end of said aging unit positioned adjacent to said nozzle of said aging unit, whereby the first dehydrated latex starts an aging process and a final product of a second-stage processed latex material is resulted when both temperature and pressure requirements are met at said nozzle, wherein when the first dehydrated latex entered into said aging machine, the first dehydrated latex is being pressed and cut through said screw shaft unit while propelling along said screw shaft unit from said first end to said second end of said aging unit, resulting in volatile compositions contained in the first dehydrated latex being gasified; wherein a pressure requirement for aging is met at said second end of said aging channel by pressing and cutting of the first dehydrated latex through said screw shaft, wherein a temperature requirement is met when temperature is increased by pressing and cutting of the first dehydrated latex through said screw shaft, which is further increased by squeezing through said nozzle of said aging unit and heating by said heating device provided adjacent to said nozzle of said aging unit, wherein free water and volatile compositions contained in the first dehydrate latex are removed when the first dehydrate latex is decompressed at said nozzle outside said aging channel. |
