Ash removing device of tail flue of fluidized boiler

Abstract

The invention relates to an ash removing device of the tail flue of a fluidized boiler. The ash removing device comprises a smoke inlet pipe, a cooling pipe, a separation pipe and a sedimentation pipe, wherein the axis of the columnar pipeline of the separation pipe is vertical to the ground, the open end of the columnar pipeline faces to the ground, and the smoke inlet pipe is arranged on the lateral wall of the columnar pipeline; one end of the smoke inlet pipe is communicated with the interior of the columnar pipeline, and the other end thereof is communicated with the tail flue of the fluidized boiler; the cooling pipe is mounted at the sealed end at the top of the separation pipe, the other end of the cooling pipe is communicated with the interior of the separation pipe, and a spraying component is mounted in the cooling pipe; a separator is disposed on the wall face of the separation pipe and comprises a plurality of filter plates, and the filter plates are arranged on the inner wall of the separation pipe in a zigzag and staggered manner; an exhaust pipe is arranged at the bottom of the separation pipe. The ash removing device has the advantages that smoke is absorbed through water, and separation of waste gas, particles and soluble impurities is achieved by the filtering separation mechanism.

Description

technical field [0001] The invention relates to an ash removal device for a tail flue of a fluidized boiler, and belongs to the field of exhaust gas purification equipment of a fluidized boiler. Background technique [0002] In a fluidized boiler, although the tail flue gas passes through the cyclone separator, most of the dust and fly ash can be separated, but a large part of the dust will still be discharged into the atmosphere along with the tail flue gas, causing Environmental pollution. At the same time, there is a lack of corresponding purification equipment for gases such as sulfur dioxide and sulfur trioxide, which will also be discharged into the atmosphere along with the tail flue gas, which will cause serious pollution to the environment; at the same time, these smoke and acidic air will also corrode the chimney. The inner wall, agglomeration and local corrosion occur on the inner wall of the chimney, which makes the flow resistance of the chimney larger and the s...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to overcome the technical problems of low ash removal efficiency and large flow resistance of traditional equipment in the prior art, and provide a kind of ash removal device for the tail flue of a fluidized boiler

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