Sulfur feeding device for sulfur dioxide preparation process in air bromine-blowing production

Abstract

The invention discloses a sulfur feeding device for a sulfur dioxide preparation process in air bromine-blowing production, and relates to sulfur feeding for the sulfur dioxide preparation process inthe air bromine-blowing production. The device comprises a hopper, an outlet in the bottom of the hopper and a blanking pipe connected with the outlet; a ventilation pipe is arranged at the bottom ofthe blanking pipe and connected with a draught fan; the device further comprises a discharger, wherein the discharger is arranged on the blanking pipe and used for discharging sulfur in the hopper downwards. The discharger comprises a shell connected with the blanking pipe and a bin wheel arranged in the shell, and the bin wheel is driven by a motor to rotate. The bin wheel comprises a shaft, a first circular side plate and a second circular side plate, the first circular side plate and the second circular side plate are arranged at the two ends of the shaft, a plurality of bin partition plates are arranged between the first side plate and the second side plate and extend outwards to the outer end of the first side plate and the outer end of the second side plate from the axial direction,and partition bins are formed among each two adjacent bin partition plates, the first side plate and the second side plate. The device has the beneficial effects that a screw shaft is prevented from being locked down and halted, and stable and continuous operation of production is guaranteed.

Description

technical field [0001] The invention relates to a sulfur feeding material for the sulfur dioxide preparation process in the air-blown bromine production. Background technique [0002] Air blowing bromine by acid method is a method of producing bromine. At present, most domestic production enterprises use air blow bromine by acid method. The main process is to acidify seawater or brine with low bromine content first, then oxidize it with chlorine gas, desorb it with air in the blowing tower, and blow out free bromine Br 2 . Then use sulfur dioxide to absorb in the absorption tower, enrich bromine to form an intermediate product absorption liquid, and finally pass through a distillation tower to distill, cool, and separate to produce finished bromine. [0003] Bromide ions in seawater are oxidized with chlorine gas to generate bromine molecules under acidic conditions, and the reaction formula is as follows: [0004] 2Br - +Cl 2 →Br 2 +2Cl - [0005] The free bromine i...

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Problems solved by technology

[0010] The object of the present invention is to aim at the technical defects existing in the prior art, and provide a device for sulfur feeding in the sulfur dioxide preparation process in air blowing bromine production, which effectively solves the problem caused by the accumulation of sulfur particles in the gap between the screw shaft and the inner wall of the shell. The problem of screw shaft locking and stopping

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