Spiral efficient sulfur extraction device and extraction method thereof

Abstract

The invention relates to a spiral efficient sulfur extraction device and an extraction method thereof. The device comprises an extraction tank, a first feeding hole, a second feeding hole, a dissolving tank and a liquid outlet, wherein the extraction tank is of a closed cavity structure; the dissolving tank is spirally and uniformly distributed around the axis of the extraction tank from top to bottom along the axis of the extraction tank; the upper end surface of the dissolving tank is communicated with the first feeding hole and the second feeding hole; the lower end surface of the dissolving tank is communicated with the liquid outlet; the first feeding hole is perpendicular to the upper end face of the extraction tank; the liquid outlet is formed in the bottom of the side wall of the extraction tank; the axis of the liquid outlet is perpendicular to the axis of the extraction tank; the axes of the first feeding hole and the liquid outlet intersect with the axis of the dissolving tank respectively; and the second feeding hole is formed in the upper end face of the extraction tank and is symmetrical with the first feeding hole about the axis of the extraction tank. According to the invention, the processing requirement of high-efficiency extraction operation on liquid sulfur can be effectively met, and the operation efficiency of separation between an extract and a master batch is improved, so the processing efficiency and quality of liquid sulfur extraction operation can be effectively improved while the equipment operation and maintenance cost and the liquid sulfur extraction operation cost are reduced.

Description

technical field [0001] The invention relates to a liquid sulfur extraction equipment, in particular to a spiral type high-efficiency sulfur extraction device and an extraction method thereof. Background technique [0002] As an important energy material, coke is widely used in metal smelting, casting and gasification. A certain amount of coke oven gas will be produced in the coke manufacturing process, and coke oven gas has been widely used as a new resource. my country's treatment of hydrogen sulfide in coke oven gas can be roughly divided into the following two types: one is dry desulfurization using high-valent iron as a catalyst, and the other is wet oxidation desulfurization using Na2CO3 as an absorbent. Compared with the dry desulfurization of high-valent iron, wet oxidation desulfurization has the advantages of high desulfurization efficiency, wide gas application range, and simple operation [3], and is widely used in the field of coke oven gas purification. Due to ...

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Problems solved by technology

[0003] 1. The sulfur in the filter residue cannot be processed

[0004] 2. The inorganic salt cannot be removed well, or it is reflected in the removal of the inorganic salt but only for the removal, the inorganic salt cannot be completely removed

[0005] 3. Failure to remove soluble catalysts well

[0008] Disadvantages of this device: 1. The manufacture is cumbersome; 2. There will be bias flow and uneven liquid; 3. It is cumbersome to switch to crude sulfur with high inorganic salt; 4. The extraction agent has certain toxicity, and safety issues must be considered when cleaning the slag

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