Mannheim process potassium sulfate tail gas treatment system

A technology for tail gas treatment and potassium sulfate, which is applied in waste heat treatment, separation methods, chemical instruments and methods, etc., can solve the problems of low tail gas treatment efficiency and no comprehensive treatment of three kinds of tail gas, so as to improve comprehensive treatment efficiency and simple structure , the effect of preventing high temperature aging

Pending Publication Date: 2022-04-08
山东三方化工集团有限公司
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Problems solved by technology

[0009] Most of the existing tail gas treatment devices treat the above three kinds of tail gas separately, without comprehensive treatment of the three kinds of tail gas, and the tail gas treatment efficiency is low

Method used

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  • Mannheim process potassium sulfate tail gas treatment system
  • Mannheim process potassium sulfate tail gas treatment system

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Embodiment 1

[0039] Such as Figure 1-2As shown, the Mannheim method potassium sulfate tail gas treatment system of the present invention includes a Mannheim furnace tail gas generation part, a combustion tail gas cooling and cooling part, a hydrogen chloride gas washing part, a tail gas conveying part and a combustion tail gas washing part.

[0040] Mannheim furnace tail gas generation part:

[0041] This part includes the Mannheim furnace. The upper part of the Mannheim furnace is a combustion chamber, the middle part is a reaction chamber, and the lower part is a flue. During the production of potassium sulfate, the tail gas is discharged through the flue, and the hydrogen chloride gas generated is discharged through the reaction chamber. .

[0042] Specifically, the basic structure of the Mannheim furnace is as follows figure 2 As shown, the upper part is the combustion chamber, the middle part is the reaction chamber, and the lower part is the flue, wherein the combustion chamber an...

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Abstract

The invention belongs to the technical field of potassium sulfate tail gas treatment, and particularly relates to a Mannheim process potassium sulfate tail gas treatment system. The Mannheim process potassium sulfate tail gas treatment system comprises a Mannheim furnace tail gas generation part, a combustion tail gas cooling part, a hydrogen chloride gas washing part, a tail gas conveying part and a combustion tail gas washing part, in the Mannheim furnace combustion tail gas cooling part, the Mannheim furnace combustion tail gas is cooled to 150-200 DEG C through a recuperator and then cooled to 50-80 DEG C through a carbon crystal cooler; in the combustion tail gas washing part, tail gas is washed by an alkali liquor washing tower and then enters a wet electric dust collector for electrostatic adsorption, and finally the tail gas reaches the emission standard. The device is simple in structure, energy-saving and environment-friendly, the potassium sulfate Mannheim furnace tail gas is comprehensively treated, the hydrogen chloride tail gas is fully recycled to obtain a byproduct high-concentration hydrochloric acid, the tail gas is thoroughly treated, and the environment-friendly emission requirement is met.

Description

technical field [0001] The invention belongs to the technical field of potassium sulfate tail gas treatment, and in particular relates to a Mannheim method potassium sulfate tail gas treatment system. Background technique [0002] There are many production processes for potassium sulfate, such as Mannheim method, association method, mirabilite conversion method, gypsum conversion method, and ammonium sulfate conversion method. Mannheim method is currently the most mature potassium sulfate production process, and the quality of potassium sulfate produced is good. , high grade, high yield of potassium, and hydrochloric acid by-product. [0003] The Mannheim method refers to the method of producing potassium sulfate from potassium chloride and sulfuric acid, which was developed by German chemist MannheimVerein at the end of the 19th century. The production method is: add potassium chloride and concentrated sulfuric acid into the reaction furnace according to a certain ratio, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/50B01D53/48B01D53/68F27D17/00C01B7/07
Inventor 徐东升于文慧杨德涛张磊许文彬张守利
Owner 山东三方化工集团有限公司
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