The device uses the contact method to produce sulfuric acid, and the hydrogen sulfide acid gas is injected into the hydrogen sulfide incinerator and mixed with air to generate the sulfur dioxide-containing process gas; the waste heat recovery system recovers the heat, seals the dilute acid, purifies and then dries, and feeds The sulfur acid plant produces sulfuric acid. The acidic wastewater generated during the production process is sent to the phosphoric acid plant for recycling and used to achieve zero discharge of wastewater.
Due to the severe toxicity of hydrogen sulphide, the device adopts DCS to display, record, accumulate, alarm, adjust and interlock the main parameters such as temperature, pressure, flow, level and composition in the production process. The safety of the device production; At the same time, in order to prevent the leakage of hydrogen sulfide gas, a hydrogen sulfide gas concentration alarm was installed on the installation site, and equipped with emergency protective equipment to ensure the health and safety of on-site workers.
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