Pump casing repair] Method for corrosion treatment of desulfurization pump casing

1. The importance of corrosion treatment of desulfurization pump casing


Desulfurization generally refers to the removal of sulfur from fuel before combustion and the desulfurization process before flue gas emission. It is one of the important technical measures to prevent and control air pollution. There are generally three types of desulfurization methods: pre-combustion, in-combustion and post-combustion desulfurization. With the development of industry and the improvement of people’s living standards, the thirst for energy is also increasing, and SO2 in coal-fired flue gas has become the main cause of air pollution. Reducing SO2 pollution has become the top priority of today’s atmospheric environment management. Many flue gas desulfurization processes have been widely used in the industry, and it also has important practical significance for the treatment of exhaust gas from various boilers and incinerators.


The desulfurization slurry circulating pump is also known as the desulfurization pump. It is a large-scale equipment behind the relay heat exchanger and booster fan in the desulfurization system. It is usually centrifugal. It directly extracts the slurry from the bottom of the tower for circulation. Pumps with the highest flow rates and the most severe service conditions often fail due to corrosion and abrasion.


2.Second, the method of corrosion treatment of desulfurization pump casing


There are many treatment methods for desulfurization pump casing corrosion, and the treatment effects are also different. Today, the main introduction is the Sole carbon nanopolymer material technology. First of all, the repair material is a solvent-free high-performance polymer material, which is composed of high-performance epoxy resin, carbon fiber, silicon steel, ceramics, etc. Material adhesion, impact resistance, erosion resistance, corrosion resistance and other properties are good, and can be used to repair and protect various equipment in high abrasion, cavitation and impact environments. Secondly, the processing process is simple and easy to operate, without tedious processing steps and tools, which can help enterprises quickly solve equipment problems and resume normal production.


Post time: Mar-02-2022