Combined sediment collector for ash water of ash field and collection method thereof

Abstract

The invention discloses a combined sediment collector for ash water of an ash field and a collection method of the combined sediment collector, solving the problem that the environment is polluted because the sewage of an existing slag field is improperly processed. According the technical scheme, the combined sediment collector comprises a starter dam, wherein a slag field is arranged at the upstream of the starter dam, a returning tank is arranged at the downstream of the starter dam and is communicated with the slag field through a draining pipe, a sedimentation tank is further arranged on one side of the returning tank and is communicated with the slag field through a flood draining pipe, and the returning tank and the sedimentation tank are communicated through a side flow weir arranged on the side wall of the returning tank. By utilizing the combined sediment collector and the collection method, all percolate and partial ash water can be intercepted, the ash slag in the percolate and the ash water is precipitated, and the sewage is effectively intercepted, so that effects of sewage cleaning, separation, circulation, automatic flow and sewage reuse are achieved; the combined sediment collector is simple in structure and control and low in investment and operation costs and is resource-saving and environment-friendly.

Description

technical field [0001] The invention relates to a sewage treatment system and a method thereof. Background technique [0002] Domestic coking, coal-to-oil, coal gasification to ammonia, coal gasification to alcohol ether fuel and other coal chemical projects, coal-fueled thermal power stations, power stations, thermal power plants, thermal installations and other industrial projects will produce a large amount of ash; These ash and slag belong to general solid waste, and it is often necessary to establish an ash and slag yard to stockpile and dispose of the ash and slag. For the ash yard (also known as the slag yard) where these ash and slag are stacked, there is a problem of leachate after long-term stacking, and after rainy weather, a large amount of rainfall will also form ash water, which is difficult to separate from the ash and slag mixed in the gray water. After a small amount of simple interception, the ashes and slag are difficult to separate and can only be used f...

AI Technical Summary

Problems solved by technology

For the ash yard (also known as the slag yard) where these ash and slag are stacked, there is a problem of leachate after long-term stacking, and after rainy weather, a large amount of rainfall will also form ash water, which is difficult to separate from the ash and slag mixed in the gray water. After a small amount of simple interception, because the ash residue is difficult to separate, it can only be used for sprinkling the ash surface and partial greening watering, which makes it difficult to reuse, and most of it will be discharged downstream through the subsequent drainage system and flood drainage system without treatment.

After the leachate and gray water are discharged to the downstream of the slag yard through the flood drainage system, the gray water and the ash slag it carries will pollute the downstream, causing soil salinization and destroying the ecological environment.

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