Ash removal device for 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, which belongs to the exhaust gas purification equipment of a fluidized boiler [0002] field. Background technique [0003] In the fluidized boiler, although the tail flue gas passes through the cyclone separator, most of the dust and powder can be separated. [0004] Coal ash, but there will still be a large part of the smoke and dust will be discharged into the atmosphere along with the tail smoke, causing environmental pollution, and at the same time [0005] At the same time, there is also a lack of corresponding purification equipment for gases such as sulfur dioxide and sulfur trioxide, and they will also be discharged into the atmosphere along with the tail flue gas. [0006] In the middle, it will cause serious pollution to the environment; at the same time, the smoke and acidic air will also corrode the inner wall of the chimney, and the inner wall of the c...

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Problems solved by technology

[0009] The technical problem to be solved by the present invention is: to overcome the low ash removal efficiency and large flow resistance of traditional equipment in the prior art

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