Muck discharging device of full-face tunnel boring machine for vertical shaft

Abstract

The invention discloses a muck discharging device of a full-face tunnel boring machine for a vertical shaft. The device comprises an axial muck outlet formed in the center of a cutter head, a plurality of muck feeding spokes extending in the radial direction of the cutter head, radial spiral conveying assemblies arranged on the muck feeding spokes and an axial spiral conveying assembly extending in the axial direction of the cutter head and communicating with the axial muck outlet, wherein the muck feeding spokes are provided with muck inlets. Muck cut by a cutter on the cutter head flows intothe radial spiral conveying assemblies from the muck inlets, and flows into the axial muck outlet under conveying of the radial spiral conveying assemblies; the muck flowing into the axial muck outlet is discharged to the surface by the axial spiral conveying assembly. In the tunnel boring process of the shaft, the muck is continuously conveyed by the radial spiral conveying assemblies and the axial spiral conveying assembly, the influence of height difference on the muck discharging speed is avoided, and continuous and stable muck discharging can be achieved. Therefore, the muck dischargingdevice has high muck discharging efficiency, rich functions, simple and compact structure and good adaptability. The invention also discloses the full-face tunnel boring machine, comprising the muck discharging device, for the vertical shaft.

Description

technical field [0001] The invention relates to the field of excavation equipment, in particular to a slag discharge device for a full-face excavation machine for shafts. The present invention also relates to a full-face tunneling machine for shafts comprising the aforementioned slag discharge device. Background technique [0002] Existing full-face boring machines for excavating shafts generally include a slag discharge device for discharging muck. Generally, the existing slag discharge device includes a mud pump for pressing the mud into the mud water tank and a mud circulation pipeline for circulating the mud, so that the mud is discharged by way of mud circulation. However, as the excavation depth of the shaft increases, the height difference of the mud circulation pipeline increases accordingly, resulting in the limitation of the conveying capacity of the mud pump by the height difference, which seriously affects the slag discharge efficiency. Contents of the inventi...

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Problems solved by technology

However, as the excavation depth of the shaft increases, the height difference of the mud circulation pipeline increases accordingly, resulting in the limitation of the conveying capacity of the mud pump by the height difference, which seriously affects the slag discharge efficiency

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