Desulfurizing method using desulfurizing tank

Abstract

The invention discloses a desulfurizing method using a desulfurizing tank. The method comprises the following steps: grinding to-be-desulfurized rubber into rubber powder, and sieving with a sieve of5-200 meshes; removing iron chips and impurities in the rubber powder by an electromagnetic method; putting the rubber powder into the desulfurizing tank; adding a desulfurizing agent into the desulfurizing tank through a liquid inlet pipe; mixing the rubber powder and the desulfurizing agent according to a mass ratio of 100 to (15-25); starting two motors of the desulfurizing tank so that the desulfurizing tank rotates at a speed of 40r / min, enabling a stirring blade to stir the mixture in the desulfurizing tank at the same time; starting a microwave generator; introducing steam at 280-380 DEG C into the desulfurizing tank while ensuring that pressure in the tank is 14-18MPa; reacting for 120min and cooling the desulfurizing tank to 150 DEG C or below.

Description

technical field [0001] The invention relates to the technical field of rubber manufacturing equipment, in particular to a desulfurization method using a desulfurization tank. Background technique [0002] Due to the wide application of rubber products, there is a huge amount of waste rubber products, such as automobile waste tires. For this reason, the recycling industry of waste rubber products has developed rapidly. Through the regeneration treatment of waste rubber products, environmental pollution can be prevented and resources can be saved. The key to the regeneration of waste rubber lies in the desulfurization production process of regenerated rubber. The commonly used desulfurization process is to add rubber powder, water, activator, and softener into the desulfurization tank to seal it, and let the steam boiler inject steam into the desulfurization tank. When the pressure reaches 0.6Mpa Stop flushing the steam at this time, and use direct electric heating or interla...

AI Technical Summary

Problems solved by technology

[0003] For the existing production process, the ubiquitous shortcomings of long steam flushing time, high energy consumption, and large exhaust emissions, in order to rapidly increase the pressure in the desulfurization tank with raw materials installed in production, the only way is to flush steam with a steam boiler Boosting the pressure, but it takes a certain amount of time for the steam boiler to generate steam, and it needs to continuously burn coal and raise the temperature. During this process, coal consumption, electricity consumption, water consumption, and a large amount of coal-fired exhaust gas and cinders are emitted.

This static desulfurization process takes a long time and seriously affects production efficiency

Images