High-efficiency ash flushing water system of boiler

Abstract

The invention discloses a high-efficiency ash flushing water system of a boiler, which comprises a grate, an air feeding chamber, an ash hopper, an ash flushing pipe and a slag groove. The grate is arranged on the air feeding chamber, the lower side of the air feeding chamber is communicated with the ash hopper, the ash hopper is connected with the ash flushing pipe by an ash dropping pipe, the tail end of the ash flushing pipe is communicated with the slag groove, and the front end of the ash flushing pipe is connected with an intermittent automatic flushing tank. The intermittent automatic flushing tank consists of a water tank, a skip bucket, a drainage pipe and a siphon pipe, the skip bucket is positioned on the upper portion of the water tank, the drainage pipe is disposed in the middle of the water tank, the siphon pipe is covered at the upper end of the drainage pipe, and the lower end of the drainage pipe is connected with the ash flushing pipe. Ash flushing water is stored in the water tank at first, and is automatically drained by the aid of a siphon principle, ash slag is flushed by the aid of a large amount of water, blockage of the ash flushing pipe can be effectively prevented, and frequency of stopping the boiler to dredge the ash flushing pipe is reduced. Compared with the prior art, the high-efficiency ash flushing system of the boiler has the advantages of simple structure, convenience in operation, remarkable economic benefit and the like.

Description

technical field [0001] The invention relates to boiler cleaning equipment, in particular to a system device for washing boiler ash with water. Background technique [0002] Boiler ash flushing system is an important link to ensure the normal operation of coal-fired boilers. During the operation of the boiler, the ash and fine coal on the grate will fall into the air supply chamber through the gaps between the grate pieces. Excessive accumulation of ash in the air chamber will affect the air supply, so it is necessary to regularly discharge the ash to the Ash hopper; the ash slag mixed between the grate pieces will also fall into the ash hopper during the return journey. The ash slag that fell into the ash hopper then falls into the ash flushing pipe, and is flushed into the slag tank of the slag remover by hydraulic power. The gray water in the slag tank is filtered and precipitated, and then pumped into the ash flushing pipe by the slurry pump for recycling. Due to facto...

AI Technical Summary

Problems solved by technology

Due to factors such as uneven ash flushing water volume and small water volume, especially when the air chamber discharges ash slag, a large amount of ash slag falls into the ash flushing pipe at the same time, which often leads to blockage of the ash flushing pipe. In serious cases, the furnace has to be shut down to dredge

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