Reclaimed rubber desulfurize discharge gas storage using and processing method

Abstract

The invention provides a method for storage, use and treatment of desulfurized exhaust gas during dynamic desulphurization production process of regenerated rubber. Exhaust gas from a regenerated rubber dynamic desulfurizing tank enters a storage unit through a pipe for storage so as to be used for initial heating-up and increase of pressure for desulphurization in the desulfurizing tank next time; the residual gas in the desulfurizing tank enters a primary heat exchanger, a water filter, a secondary heat exchanger, a vacuum pump and a spray absorber in sequence to be cooled, depressurized, filtered and absorbed; finally, little exhaust gas is exhausted from a stack after the exhaust gas is combusted in a combustion furnace; the waste water produced during treatment of the exhaust gas is added for desulphurization. By adopting the inventive method, the heat energy in the desulfurized exhaust gas is used at high efficiency; partial desulphurized exhaust gas is directly used; all of thewaste water produced during treatment of the waste water is used; the pollutant to be discharged is reduced so as to reach the standard; the treatment method is easy; desulfurized waste gas treatmentequipment can run at low cost with low investment.

Description

Technical field: [0001] The invention relates to a treatment method for waste gas in the chemical industry, in particular to a storage and utilization treatment method for waste gas in a regenerated rubber dynamic desulfurization production process. Background technique: [0002] At present, the national reclaimed rubber production process mainly adopts the dynamic desulfurization method. The process is to put waste rubber powder, certain auxiliary materials, and water into the dynamic desulfurization tank and seal it. Instead, the heating device of the desulfurization tank itself continues to increase the temperature and pressure, and under high temperature and high pressure, the sulfur bonds in the rubber are broken, so as to achieve the purpose of desulfurization. After desulfurization, a large amount of waste gas such as water vapor and volatile gases in auxiliary materials need to be discharged from the desulfurization tank. The existing waste gas treatment methods must...

AI Technical Summary

Problems solved by technology

After desulfurization, a large amount of waste gas such as water vapor and volatile gases in auxiliary materials need to be discharged from the desulfurization tank. The existing waste gas treatment methods must meet the national pollutant discharge standards, which require large equipment investment, complicated processes, and high operating costs. Moreover, it is difficult to achieve 100% discharge of waste water produced in the waste gas treatment process.

In addition, when the exhaust gas pressure is less than 0.04MPa, the mouth of the desulfurization tank needs to be discharged directly to the work site space, polluting the surrounding environment