Ash unloading device for large drop ash field

Abstract

The invention discloses an ash unloading device for a large drop ash field, and belongs to the field of ash conveying. The ash unloading device for the large drop ash field comprises a material receiving hopper, wherein the discharging opening of the material receiving hopper is provided with a curved ash conveying pipe, the discharging opening of the curved ash conveying pipe is provided with a closed material bin, the closed material bin comprises a cylindrical upper end and an inverted circular truncated cone-shaped contractable end, and an ash unloading valve is arranged at the bottom of the contractable end. When ash material in the material receiving hopper falls into the curved ash conveying pipe, the ash material falls under the action of gravity and is continuously accelerated, the fallen ash material continuously impacts the inner wall of the curved ash conveying pipe due to the existence of the curved ash conveying pipe, the deceleration effect is achieved, and the ash material falling speed is controlled; the device is of a fully closed structure, and thus the occurrence of the flying ash condition generated in the ash unloading process is avoided; and on the other hand, due to the existence of the curved ash conveying pipe, the fallen ash material continuously impacts the inner wall of the curved ash conveying pipe, the deceleration effect is achieved, the fallingspeed of the ash material is controlled, so that the source for generating flying ash is further reduced, and secondary flying, caused by too fast speed during ash unloading and conveying, of the ashis prevented.

Description

technical field [0001] The invention belongs to the field of ash conveying, in particular to an ash unloading device for ash field with large drop. Background technique [0002] Domestic ash yards are generally divided into flat ash yards and valley ash yards. The flat ash yards are generally transported to the ash yard by cars and then rolled directly. Cars are transported to comprehensive utilization users, such as cement plants and building materials plants. This situation is applicable to power plants with better comprehensive utilization. [0003] As for the ash yard in the valley, it is necessary to set up a temporary road in the ash yard and repair it all the way to the bottom of the valley. At present, there are mainly the following treatment options: one is to transport the car to the ash yard for rolling and storage. The ash is transported from the power plant to the ash yard at a certain distance from the power plant by pulling the ash truck, and dumped at a hi...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of a large amount of dust generated during the ash unloading process, and to provide an ash unloading device for a large drop ash field

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