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Zinc oxide desulfurization washing system

A technology of zinc oxide and washing tower, which is applied in the field of zinc oxide desulfurization washing process, can solve the problems of increasing production cost, large metal loss, and increasing the difficulty of sewage station treatment, so as to save water, reduce zinc loss and sewage treatment cost and the effect of difficulty

Pending Publication Date: 2018-04-20
南丹县南方有色金属有限责任公司
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Problems solved by technology

However, in this process, due to the small amount of acid contained in the dust or the muddy solution when the filter press is used to filter the solution, the zinc content in the washing liquid is about 5g / l, and the metal loss is large. The traditional method is to add Soda ash neutralizes zinc precipitation, but this will increase production costs, and at the same time increase the difficulty of sewage treatment

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  • Zinc oxide desulfurization washing system

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Embodiment Construction

[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0014] It should be noted that when a component is said to be "fixed" to another component, it can be directly on the other component or there can also be an intervening component. When a component is said to be "connected" to another component, it may be directly connected to the other component or there may be intervening components at the same time. When a component is said to be "set on" another component, it may be set directly on the other component or t...

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Abstract

The invention relates to the technical field of a zinc oxide desulfurization washing process, in particular to a zinc oxide desulfurization washing system. The zinc oxide desulfurization washing system comprises a washing tower, a press filter, a thickener, a supernatant groove, a material distribution groove, a ball milling machine and an adsorption tower, wherein the washing tower is connected with the press filter through a pipeline; the press filter is connected with the thickener through a pipeline; the thickener is connected with the supernatant groove; solid liquid obtained through thethickener enters the supernatant groove; supernatants in the supernatant groove enters a liquid proportioning groove for regulating the pH; lower layer settled zinc oxide is introduced into the ball mill; the zinc oxide milled by the ball mill enters the absorption tower for desulfurization. The zinc content of washing liquid is reduced from 5g / L to 0.2g / L, so that the zinc loss and the sewage treatment cost and difficulty are reduced.

Description

【Technical field】 [0001] The invention relates to the technical field of zinc oxide desulfurization washing process, in particular to a zinc oxide desulfurization washing system. 【Background technique】 [0002] During the zinc oxide desulfurization process, the washing tower is mainly used to wash the particles and fluorine and chloride ions in the dust of zinc oxide, and the washing liquid after washing is sent to the sewage station for treatment. However, in this process, due to the small amount of acid contained in the dust or the muddy solution when the filter press is used to filter the solution, the zinc content in the washing liquid is about 5g / l, and the metal loss is large. The traditional method is to add Soda ash neutralizes zinc precipitation, but this will increase production costs, and at the same time increase the difficulty of sewage treatment. 【Content of invention】 [0003] In view of the above, the present invention adopts a zinc oxide desulfurization w...

Claims

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Application Information

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IPC IPC(8): C01G9/02
CPCC01G9/02
Inventor 莫毅
Owner 南丹县南方有色金属有限责任公司
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