Knowledge for the Sulphuric Acid Industry
Sulphuric Acid on the Web
Introduction
General
Equipment Suppliers
Contractor
Instrumentation
Industry News
Maintenance
Acid
Traders
Organizations
Fabricators
Conferences
Used
Plants
Intellectual
Propoerty
Acid
Plant Database
Market
Information
Library
Technical Manual
Introduction
General
Definitions
Instrumentation
Plant Safety
Metallurgial
Processes
Metallurgical
Sulphur Burning
Acid Regeneration
Lead Chamber
Technology
Gas Cleaning
Contact
Strong Acid
Acid Storage
Loading/Unloading
Transportation
Sulphur
Systems
Liquid SO2
Boiler Feed Water
Steam Systems
Cooling Water
Effluent Treatment
Utilities
Construction
Maintenance
Inspection
Analytical Procedures
Materials of Construction
Corrosion
Properties
Vendor Data
DKL Engineering, Inc.
Handbook of Sulphuric Acid Manufacturing
Order
Form
Preface
Contents
Feedback
Sulphuric Acid
Decolourization
Order Form
Preface
Table of Contents
Process Engineering Data Sheets - PEDS
Order
Form
Table of Contents
Introduction
Bibliography of Sulphuric Acid Technology
Order Form
Preface
Contents
Maintenance and Inspection - Stack
September 8, 2003
Introduction Stack Washing |
Associated Links |
There is very little maintenance and inspection required for an acid plant stack.
Periodically, a thorough thickness survey should be done of the stack in the area of gas breach.
The most common problem encountered with stacks is the emission of sulphate deposits. During a prolonged stoppage the final inspection and cleaning of the stack base should be left as late as practically possible before starting up.
Some plant operators have found that cleaning of the stack can be achieved by
introducing steam into the base during a plant stoppage. The steam is left
on for several hours and as it condenses it washes the sulphate off the walls.
Some plants wash their stacks on a regular basis every 6 months.
Washing the stack will tend to shorten the life of the stack.