Equipment for preparing sulfuric acid

An equipment and sulfuric acid technology, applied in the field of sulfuric acid preparation, can solve the problems affecting the acid resistance of the caster, poor enamel pressure resistance, damage to the enamel surface, etc. Effect

Inactive Publication Date: 2014-07-02
天津瑞唐科技有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0006] In the prior art, the supporting grate arranged in the absorption tower is generally processed by an enamel process, thereby forming a corrosion-resistant enamel protective layer on the surface of the supporting grate, but the compression resistance of the enamel is not good, and the supporting grate is usually It needs to support 2-3 tons of

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  • Equipment for preparing sulfuric acid
  • Equipment for preparing sulfuric acid

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[0022] The present invention will be described in detail below with reference to the drawings and embodiments.

[0023] figure 1 It is a schematic diagram of the structure of the equipment for preparing sulfuric acid of the present invention; figure 2 It is a partial enlarged schematic diagram of the coating structure on the inner wall of the absorption tower in the equipment for preparing sulfuric acid of the present invention.

[0024] Such as figure 1 with figure 2 As shown, the equipment for preparing sulfuric acid of the present invention includes: an absorption tower 1, an absorption tower inlet 2 is arranged on the upper part, the acid liquid enters the absorption tower from the absorption tower inlet, and an absorption tower outlet 3 is arranged at the lower part of the absorption tower. The sulfuric acid containing sulfur trioxide is discharged from the outlet of the absorption tower. A gas inlet 4 is set in the middle of the absorption tower. The sulfur trioxide gas is...

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Abstract

The invention discloses equipment for preparing sulfuric acid, comprising an absorption tower, wherein an absorption tower inlet is arranged at the upper part of the absorption tower, an absorption tower outlet is arranged at the lower part of the absorption tower, a gas inlet is arranged at the middle part of the absorption tower, a supporting grate for supporting a hollow ceramic ring group is arranged in the absorption tower, a fusion zone is formed at the middle section of the absorption tower in correspondence to the gas inlet, the supporting grate and the hollow ceramic ring group, a spray zone is formed above the fusion zone in the absorption tower, a collection zone is formed below the fusion zone, a Teflon coating is coated on the inner wall of the absorption tower, and meanwhile, a Teflon coating is also coated on the surface of the supporting grate. The Teflon coating improves the acid resistance of the inner wall of the absorption tower and the supporting grate, avoids the reaction between the metal and sulfuric acid, and blocks metal ions from being separated out, so as to prevent the prepared sulfuric acid from being polluted. The Teflon coating is relatively stable, and does not cause breaking of a protective layer due to collision or pressing, so as to achieve an effective protection effect.

Description

technical field [0001] The invention relates to the technical field of sulfuric acid preparation, in particular to a corrosion-resistant and low-cost equipment for preparing sulfuric acid. Background technique [0002] [0003] Sulfuric acid is an important basic chemical raw material with a wide range of uses. It is often used in the manufacture of ammonium sulfate, superphosphate, aluminum sulfate, titanium dioxide, synthetic drugs, synthetic dyes and synthetic detergents. Sulfuric acid is used as a dehydrating agent and sulfonating agent in the field of organic synthesis, as a pickling agent in metal, enamel and other industries, and in refining petroleum products in the petroleum industry. [0004] The raw materials for producing sulfuric acid include pyrite, sulfur and non-ferrous metal smelting gas, etc. The production methods of sulfuric acid include lead chamber method, tower method and contact method. At present, the contact method is widely used for the p...

Claims

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Application Information

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IPC IPC(8): C01B17/80
Inventor 李欣陈思潮何玥武长斌
Owner 天津瑞唐科技有限公司
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