Annular wrapping dust suppression device for tunneling machine

Abstract

The invention discloses an annular wrapping dust suppression device for a tunneling machine. The annular wrapping dust suppression device for the tunneling machine is suitable for dust-producing control of a cutting head of a coal mine underground integrated excavator. The annular wrapping dust suppression device comprises an annular air knife, a jet flow spraying device and atomizing nozzles. Thejet flow spraying device and the annular air knife are fixed together with a fixed bottom plate and connectors. Six atomizing nozzles are uniformly arranged at the front end of the jet flow sprayingdevice, and an annular air knife device is arranged on the periphery of the jet flow spraying device. A convex inclined plane air guide wall is arranged on the front portion of the annular air knife,and an air outlet seam of 0.5-1.5 mm is formed between the air guide wall. The inner diameter of the jet flow spraying device can be varied by adjusting bottom plates. The annular wrapping dust suppression device for the tunneling machine has the advantages of simple structure, long-lasting durability, dust source suppression, prevention of returning wind carrying water mist and the like, and is suitable for the dust-producing control of the cutting head of the coal mine underground integrated excavator.

Description

technical field [0001] The invention relates to a dust suppressing device, which is especially suitable for controlling the dust source dust produced at the cutting head of an underground tunneling machine in a coal mine. Background technique [0002] The working face of fully mechanized tunneling in coal mines is a workplace where a large amount of dust is generated and concentrated, and dust is the main factor that causes pneumoconiosis, produces coal dust explosions, causes equipment wear and reduces the visibility of the working face. At present, the fully mechanized excavation working face of the coal mine mainly relies on the internal and external spray facilities of the roadheader to reduce dust. However, because the spray is far away from the cutting head, the atomization effect is good, and a large amount of wind in the air duct turns back at the head, causing the water mist to turn back, which not only affects the dust removal effect , and cause the driver's clothe...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of head-on dust removal on the existing fully mechanized excavation face, and provide a high-efficiency dust suppression device for the mechanized excavation face with the inner layer jet spray wrapping the dust source of the cutting head and the outer layer annular air knife for partition protection

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