Compound material smoke exhaust and desulfurizing tower and fabricating method thereof

Abstract

The invention provides a compound material smoke-venting desulfurizing tower and a manufacturing method thereof. The compound material smoke-venting desulfurizing tower comprises a tower body, a top flue-gas connecting pipe arranged at the center or the eccentric part of the upper part of the tower body or on the edge part of the tower body neighboring the top part, a top cover which is arranged at the lower part of the top flue-gas connecting pipe and is connected with the tower body, a absorbing-liquid distributor arranged under the top cover in the tower body, a middle flue-gas connecting pipe arranged on the lower part of the absorbing-liquid distributor and a soleplate. The tower body, the top cover and the soleplate are all made of compound materials, including inorganic fiber, organic resin and resin solidifying assistant agent, and the weight shares of the compound materials are as the following: 10 to 80 parts of inorganic fiber, 20 to 90 parts of organic resin, and the proportion between the organic resin and the resin solidifying assistant agent is 0.01 to 0.1. The compound material smoke-venting desulfurizing tower of the invention adopts the macromolecule compound material with comparative low price, and the manufacturing and construction are convenient, the quality is reliable, and the service life is long. The invention is easy for industrial implementation.

Description

technical field [0001] The invention relates to a device for removing sulfur oxides in flue gas discharged from a boiler and a manufacturing method thereof, in particular to a manufacturing material of the device. Background technique [0002] Boilers or thermal power plants that use coal or oil as fuel emit a large amount of flue gas. These flue gases contain harmful substances such as SOx, NOx, HCl and HF, among which SOx is the main substance that forms acid rain. Depending on the type of coal burned, SO 2 The content is usually 300-5000ppmv (1000-15000mg / Nm 3 )between. However, the amount of flue gas is huge. In terms of coal-fired boilers, the steam scale ranges from 35T / h to 2500T / h, the capacity of the generating set ranges from 6MW to 1000MW, and the flue gas amount varies from 50,000 Nm 3 / h to 2.5 million Nm 3 , SO 2 Emissions from 1,000 tons / year to 100,000 tons / year. Thanks to SO 2 It is an acidic gas. It is an effective method to remove SOx in the flue g...

AI Technical Summary

Problems solved by technology

[0012] Therefore, one of the main problems restricting the development of flue gas desulfurization technology is how to overcome the corrosion prevention and manufacturing difficulties of large spray desulfurization towers.

[0013] Although there are some measures in the prior art, such as adopting high-grade alloy steel, and adopting steel-lined rubber or resin glass flake paint, etc., either because the price is extremely expensive, it is difficult to be widely used, or because of the difficulty in construction and manufacture, it becomes unsuitable. reliable

At present, most desulfurization devices adopt the method of steel-lined resin glass flake coating. However, due to frequent start-up and shutdown, and construction and other reasons, the coating layer is easy to fall off, resulting in the core equipment of the desulfurization device cannot be used normally and for a long time. , must be improved

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