Film-type water-cooling lining wear-resistant plastic slag-roughing device

Abstract

The invention relates to a film-type water-cooling lining wear-resistant plastic slag-roughing device, belonging to the slag-roughing device of a boiler. The film-type water-cooling lining wear-resistant plastic slag-roughing device comprises a deslagging interface and a slag-roughing pipe, wherein a plurality of fin pipes are arranged along the periphery of the inner wall surface of the slag-roughing pipe; a ring-shaped pipe screen used as a slag-roughing pipeline is formed between adjacent fin pipes by welding; the plurality of fin pipes are respectively communicated with a cooling water distributing ring pipe arranged at the upper end of the slag-roughing pipe and a cooling water collecting ring pipe arranged at the lower end of the slag-roughing pipe; the cooling water distributing ring pipe is provided with a water inlet pipe; and the cooling water collecting ring pipe is provided with a water outlet pipe. The film-type water-cooling lining wear-resistant plastic slag-roughing device is characterized by long service life, good cooling effect and high safety performance.

Description

technical field [0001] The invention relates to a boiler slag discharge device, in particular to a slag discharge device for the connecting section between the slag discharge port of a CFB boiler and the slag inlet port of a slag cooler. Background technique [0002] As the connection equipment between the boiler and the slag removal equipment, the lower slag pipe ensures that the boiler bottom slag can flow into the slag removal equipment smoothly, and it is also crucial to the normal operation of the CFB boiler system. With the continuous increase of the capacity of CFB boiler units, the common problems of red burning, slag leakage, ash leakage, serious wear, short service life and poor safety of ordinary slag lowering pipes are particularly prominent. Once the abnormal condition of the slag lowering pipe occurs, it will cause the boiler to shut down in serious cases, resulting in unpredictable losses. The membrane-type water-cooled lined wear-resistant plastic slag lower...

AI Technical Summary

Problems solved by technology

With the continuous increase of the capacity of CFB boiler units, the common problems of red burning, slag leakage, ash leakage, serious wear, short service life and poor safety of ordinary slag discharge pipes are particularly prominent.

Once the abnormal condition of the slag lowering pipe occurs, it will cause the boiler to shut down in serious cases, causing unpredictable losses

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