Economizer outlet ash bucket

Abstract

The invention relates to the field of economizers, and particularly provides an economizer outlet ash bucket. The economizer outlet ash bucket comprises an economizer body and an economizer ash bucket, the bottom of the economizer body is provided with the economizer ash bucket, an ash bucket corner baffle is arranged between the economizer ash bucket and the economizer body, the ash bucket cornerbaffle is fixedly connected with the economizer body, horizontal flues are arranged on the side faces of the economizer body and the economizer ash bucket, a heat recycling mechanism is connected between the horizontal flues, the lower end of the economizer ash bucket is provided with a motor, a rotating shaft is rotationally arranged at the bottom of an inner cavity of the economizer ash bucket,the power output end of the motor is fixedly connected with the bottom of the rotating shaft, and a scraping plate is arranged on the outer side of the rotating shaft in a sleeving mode. Flowing fluegas is subjected to cyclotron backflow through the arc-shaped scraping plate, so that the flue gas and dust are filtered and collected after colliding with and separated from the surface of the arc-shaped scraping plate; and heat in the flue gas is recycled by matching with the heat recycling mechanism, and thus the energy-saving and environmental protection effects are achieved.

Description

technical field [0001] The invention relates to the technical field of economizers, in particular to an outlet ash hopper of an economizer. Background technique [0002] The economizer is mainly suitable for the boiler heat industry. It is a device installed at the lower part of the boiler tail flue to recover the waste heat of the exhausted smoke. It heats the boiler feed water into the heating surface of saturated water under the pressure of the steam drum. It absorbs the heat of high-temperature flue gas, reduces the exhaust temperature of flue gas, saves energy, and improves = efficiency. [0003] In the prior art, Chinese patent No. CN201621415125.1 discloses a new type of economizer outlet ash hopper, including the main body of the economizer, the bottom of the economizer inlet is provided with an economizer ash hopper, and the economizer ash hopper There is an ash hopper angle baffle between the inlet of the economizer, and the ash hopper angle baffle is fixedly conn...

AI Technical Summary

Problems solved by technology

However, the ash hopper at the outlet of the economizer only separates the gas from the solid by increasing the recirculation zone, but in the reflow process, because the size of the recirculation zone is always limited, it is impossible to completely separate and remove the dust in it, so the ideal can not be achieved. The dust removal effect; and the flue gas in the outlet ash hopper contains heat, and the existing device can not recycle the heat, which cannot achieve the effect of energy saving and environmental protection

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