Chimney protection lining and manufacturing method thereof

Abstract

The invention proposes a chimney protective inner lining and a manufacturing method thereof, which comprises a plurality of arc-shaped FRP interlayer tiles, and a plurality of FRP interlayer tiles are stacked on each other in the horizontal direction to form a cylinder section, and the plurality of The edges of each tube segment are stacked on each other in the vertical direction to form a tube-shaped structure; the radius of each tube segment is equal to the arc radius of each of the glass fiber reinforced plastic sandwich tiles that constitute the tube segment; adjacent tube segments The vertical lamination seams between the segments are staggered relative to each other. The chimney protective lining and the chimney protective lining obtained by the manufacturing method of the present invention do not need to enlarge the chimney inlet during actual construction, which reduces the difficulty of construction; the tiles of the sandwich structure have high rigidity, and can be efficiently assembled to obtain large-sized tube sections ; In addition, the internal assembly structure of the chimney is adopted, which does not require on-site production of parts, is not affected by the site, and is easy to quickly install.

Description

technical field [0001] The invention relates to the technical field of chimney anticorrosion, in particular to a chimney protective inner lining which can be used for flue gas discharge equipment such as coal-fired power plants and a manufacturing method thereof. Background technique [0002] In the industrial production of enterprises such as coal-fired power plants, the chimney is a structure that discharges various exhaust gases and smoke. Traditional chimneys are mostly reinforced concrete structures or steel structures. In recent years, in order to adapt to increasingly stringent environmental protection regulations, many thermal power plants have adopted wet desulfurization technology to reduce SO 2 emissions. The flue gas temperature before wet desulfurization is high (generally over 125°C), and the water content is very low, which generally does not have a large corrosion effect on the chimney. However, after wet desulfurization treatment, the temperature range of...

AI Technical Summary

Problems solved by technology

These existing schemes need to install glass steel plates one by one along the inner wall of the chimney, the construction area and the vertical height of the construction are large, the construction quality is difficult to be guaranteed, and it is also difficult to check construction defects

Compared with the anti-corrosion effect and construction efficiency of the formed FRP chimney inner cylinder, there are great shortcomings. However, the old chimney cannot be protected by the existing formed FRP chimney inner cylinder technology, which is a very contradictory problem

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