一种脱硫用碱液处理系统

By designing an alkaline solution treatment system for desulfurization, the alkaline solution was recycled multiple times, solving the problem of alkaline solution waste and improving desulfurization efficiency and resource utilization.

CN224506753UActive Publication Date: 2026-07-17HUBEI QIANJIANG JINHUARUN FERTILIZER

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI QIANJIANG JINHUARUN FERTILIZER
Filing Date
2025-04-09
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the existing coal gas desulfurization process, the alkaline solution is directly discharged as waste liquid after use, resulting in a large amount of waste and failure to be effectively recycled.

Method used

A desulfurization alkaline solution treatment system was designed, including a rich solution tank, a regeneration tank, a lean solution tank, a descaling pipe, an oxidation device, etc. Through oxidation reaction and multi-stage separation process, the sulfides in the alkaline solution are converted into elemental sulfur and separated, realizing the multiple recycling of the alkaline solution.

Benefits of technology

This reduces the amount of alkali solution used, avoids resource waste, and improves the utilization efficiency of alkali solution and desulfurization efficiency.

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Abstract

本实用新型涉及碱液处理技术领域,尤其涉及一种脱硫用碱液处理系统,包括:进液管、富液槽、再生槽、贫液槽、出液管;进液管与富液槽相连接;富液槽与再生槽相连接;再生槽与贫液槽相连接;贫液槽与出液管相连接;再生槽上设有氧化装置。有些煤气脱硫过程中,碱液的使用方法一般是在脱硫塔内通入吸收碱液,当碱液吸收硫化氢后再从脱硫塔排出,并直接作为废液处理,使得煤气脱硫过程中需要用到大量碱液,造成了浪费。相较于现有技术,本实用新型设计了富液槽、再生槽、贫液槽,可将脱硫塔内使用到的碱液收集并进行脱硫处理,然后再送往脱硫塔内,进行循环使用,使得在煤气脱硫过程中使用到的碱液量减少,避免了资源浪费。
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Claims

1. A desulfurization alkaline solution treatment system, characterized in that: include: The regeneration tank consists of an inlet pipe (1), a rich liquid tank (2), a regeneration tank (3), a lean liquid tank (4), and an outlet pipe (5). The inlet pipe (1) is connected to the rich liquid tank (2). The rich liquid tank (2) is connected to the regeneration tank (3). The regeneration tank (3) is connected to the lean liquid tank (4). The lean liquid tank (4) is connected to the outlet pipe (5). An oxidation device (31) is provided on the regeneration tank (3). The oxidation device (31) includes an air inlet pipe (311), a fan (312), a horn pipe (313), and a scattering pipe (314). The scattering tube (314) extends into the regeneration tank (3); the horn tube (313) is connected to the scattering tube (314); the air inlet pipe (311) is connected to the horn tube (313); and the fan (312) is connected to the scattering tube (314).

2. The caustic solution treatment system for desulfurization according to claim 1, wherein: Also includes: Desiccation tube (6); the desiccation tube (6) is located on the rich liquid tank (2).

3. The alkaline solution treatment system for desulfurization according to claim 1, characterized by: Also includes: Foam tank (7), filter press (8), clear liquid tank (9); the foam tank (7) is connected to the filter press (8); the filter press (8) is connected to the clear liquid tank (9).

4. The caustic solution treatment system for desulfurization according to claim 1, wherein: The radius of the side of the horn tube (313) away from the scattering tube (314) is smaller than that of the other side; the radius of the side of the scattering tube (314) closer to the horn tube (313) is larger than that of the other side; the scattering tube (314) has a scattering hole (3141); the number of scattering holes (3141) is several.

5. The caustic solution treatment system for desulfurization according to claim 1, wherein: The oxidation device (31) further includes a filtration structure (315); the filtration structure (315) includes a gas filter membrane (3152); one end of the air inlet pipe (311) is connected to the horn tube (313), and the other end is provided with the gas filter membrane (3152).

6. The caustic solution treatment system for desulfurization according to claim 5, wherein: The filtration structure (315) further includes a support frame (3151); the support frame (3151) is disposed on both sides of the filter membrane (3152).