Construction method of high-pressure airless spraying for desulfurated lining

Abstract

The invention discloses a construction method of high-pressure airless spraying for a desulfurated lining, which belongs to the technical field of corrosion prevention. The construction method of high-pressure airless spraying for the desulfurated lining disclosed by the invention comprises the following steps: 1 pre-processing the surface of the sprayed object before coating, including degreasing and removing rust, 2 executing bottom coating construction on the surface of the sprayed object, 3 carrying out pre-coating construction and partial glass fiber reinforced plastic reinforcing construction on the part which is difficultly sprayed on the surface of the sprayed object and the part on which a potential quality hazard easily appears, and 4 spraying vinyl ester resin chemical resistant glass flakes on the surface of a coating object by an airless sprayer. According to the construction method of high-pressure airless spraying for the desulfurated lining disclosed by the invention, the vinyl ester resin chemical resistant glass flakes are uniformly sprayed on the device by a high-pressure airless spraying technology so that a coating of an anti-corrosion layer is smooth and compact without chromatic aberration, and has good corrosion resistance and wide application range.

Description

technical field [0001] The invention relates to an anti-corrosion technology, in particular to a high-pressure airless spray anti-corrosion construction technology for a desulfurization lining. Background technique [0002] Before the desulfurization device was established in the thermal power plant, the flue gas discharged from the boiler contained a large amount of SO 2 , directly into the atmosphere through the chimney, SO 2 Combined with moisture in the air to form acid, accumulatively pollutes the environment in the form of acid rain and affects people's health. [0003] After the establishment of desulfurization devices in thermal power plants, this environmental protection problem can be solved. After the completion of the desulfurization device, it can absorb the acid gas in the flue gas, so that the flue gas discharged into the atmosphere contains few harmful substances, so as to protect the environment and promote the virtuous cycle development of the power plant...

AI Technical Summary

Problems solved by technology

If the lining anti-corrosion construction is not handled well, it will not only affect the overall operation of the entire desulfurization project, but also bring economic losses and negative impacts to the entire power plant.

It will also bring quality and safety hazards to the entire project because the construction warehouse can not guarantee the construction quality.

[0005] Among the existing flue anti-corrosion lining construction technologies, one construction technology is to carry out trowel coating construction in the same way as the desulfurization absorption tower lining construction. This construction technology has the disadvantages of long construction period and poor vibration resistance of the coating after construction; Another construction technology is brushing construction, which has the disadvantages of long construction period and poor construction quality