Irregular ash falling device

Abstract

The invention belongs to the technical field of boiler parts, and specifically relates to an irregular ash falling device. The device comprises a front ash bucket, a rear ash bucket, an access door and a rotary ash discharging valve; the front ash bucket is connected with a smoke channel at the tail part of a boiler; the rear ash bucket which is communicated with the front ash bucket is connected with a smoke channel at an outlet of the boiler; a trough type separator is obliquely arranged at a part in which the front ash bucket is connected with the rear ash bucket. With the adoption of the device, lots of ash in the smoke can be effectively separated, thus the phenomenon of ash-doped smoke returning of the ash buckets can be avoided; the effect of removing ash is obvious, the smoke purifying cost is decreased, and the irregular ash falling device is applicable to the arrangement of ash buckets of boilers of different types.

Description

technical field [0001] The invention belongs to the technical field of boiler components, and in particular relates to a special-shaped ash dropping device. Background technique [0002] As an important part of the boiler, the ash falling device is mainly used to gather and automatically discharge ash. When the flue gas containing a large amount of dust enters the ash hopper and collides with the inner wall of the ash hopper, the fly ash particles fall directly into the ash hopper, but the large negative pressure will re-involve the fly ash that has fallen into the ash hopper into the flue gas In the middle, the return air entrainment phenomenon occurs. The finer the fly ash particles, the more serious the entrainment of the return air from the ash hopper, and the actual ash fall effect is not ideal, resulting in no significant reduction in the fly ash content in the flue gas, so the cost of fly ash treatment is high. In addition, in order to connect the outlet flue of the...

AI Technical Summary

Problems solved by technology

When the flue gas containing a large amount of dust enters the ash hopper and collides with the inner wall of the ash hopper, the fly ash particles fall directly into the ash hopper, but the large negative pressure will re-involve the fly ash that has fallen into the ash hopper into the flue gas In the middle, the return air entrainment phenomenon occurs

The finer the fly ash particles, the more serious the entrainment of the return air from the ash hopper, and the actual ash fall effect is not ideal, resulting in no significant reduction in the fly ash content in the flue gas, so the cost of fly ash treatment is high

In addition, in order to connect the outlet flue of the boiler, the ordinary ash falling device needs to install interfaces, elbows, etc., which requires a large installation space

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