Novel natural rubber drying method

Abstract

The invention relates to a method for producing natural rubber. The novel method for drying natural rubber is based on the basic principle of friction heat generation, uses a barrel / screw extrusion mechanism to apply a force to a bulk gel of rubber to further expulse free water, and then compresses the rubber by the relative movement of the screw and the barrel, a mechanical friction is carried out for rubber granules in a drying device to raise the temperature and pressure of the rubber through self mechanical friction of rubber against the mechanics; after the energy repertory of rubber arrives at a certain level, a principle of adiabatic flash is used to achieve the separation of water from natural rubber within the mechanics, thereby accomplishing the drying of natural rubber. A friction heat generation method is adopted by the invention to convert the mechanical energy to heat energy to heat the rubber, and then make temperature thereof rise without intermediate process of energy transmission, thereby shortening the time needed by baking technology by more than 120 times, significantly improving the quality of the rubber, and producing a rubber with a pale color nearing the natural color.

Description

1. Technical field: [0001] The present invention relates to a natural rubber production method, in particular a drying method. 2. Background technology: [0002] In 2006, the total output of natural rubber in the world was 9.64 million tons, and my country's output was 513,100 tons, ranking fifth in the world. The first to fourth places in front are: Thailand, Indonesia, Malaysia and India. However, since most of the rubber-producing countries are developing countries, the speed of industrialization is slow, the production process level of natural rubber is not high, and the level of automation is also very low. [0003] At present, the traditional natural rubber processing process in various countries is that the glue liquid collected from rubber trees is collected and sent to rubber processing factories. After being diluted with water and coagulated with acid, it is crushed into small pieces with a pulverizer, put into water, and reused. The particles are pumped to the d...

AI Technical Summary

Problems solved by technology

According to actual analysis, the heat energy utilization rate of the traditional baking method is less than 15%, and the remaining heat is discharged into the atmosphere, with high energy consumption and low efficiency, and the problem of environmental pollution is becoming increasingly prominent.