Sealing structure of ammonia distillation tower pre-graying barrel stirring shaft
By using a split packing seat and gland structure, multi-layer packing blocks, and a circulating water cooling system, the problem of controlling the operating pressure of the ammonia stripping tower was solved, ensuring sealing reliability and equipment stability, and avoiding mercury leakage and environmental pollution.
CN224352392UActive Publication Date: 2026-06-12青海盐湖镁业有限公司
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Patent Information
- Application Number
- CN202521668363.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-06
- Publication Date
- 2026-06-12
- Estimated Expiration
- 2035-08-06
AI Technical Summary
Technical Problem
The operating pressure of the ammonia stripping tower is difficult to control effectively, and the mercury seal is prone to leakage under high pressure, which pollutes the environment and poses safety hazards. Furthermore, mercury recovery is difficult.
Method used
It adopts a split packing seat and gland structure, combined with multi-layer packing blocks and a circulating water cooling system. Heat is removed through spiral tubes, and the extrusion structure ensures sealing reliability and stability.
Benefits of technology
It improves sealing reliability and equipment stability, extends the life of packing blocks, reduces the risk of frictional heat generation, and avoids mercury leakage and environmental pollution.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224352392U_ABST
Abstract
This utility model discloses a sealing structure for the stirring shaft of a pre-ash tank in an ammonia stripping tower, including a stirring shaft, a packing seat assembly, a pressure cap assembly, a filling assembly, and a compression structure. The packing seat assembly is welded to the top of the pre-ash tank, and the pressure cap assembly is installed on the packing seat assembly. The stirring shaft passes through the packing seat assembly and the pressure cap assembly. The filling assembly fills the space between the packing seat assembly and the pressure cap assembly. The filling assembly includes a packing block, an inlet pipe, and an outlet pipe. The packing block fills the cavity formed by the packing seat assembly and the pressure cap assembly and contacts the stirring shaft. The inlet pipe and the outlet pipe pass through small holes and are connected to the packing block. This utility model has a simple structure, is easy to install and disassemble on-site, and is easy to maintain, effectively improving the maintainability and operational stability of the equipment.
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