An anti-fall recovery stretching device for a mine air duct

Abstract

The invention provides an anti-falling recycling drawing device for a mining air duct.The anti-falling recycling drawing device comprises a steel wire rope (1) hung on a mine channel, and a negative pressure air duct (2) is arranged on the steel wire rope (1) in a penetrating mode.The anti-falling recycling drawing device is characterized in that a vertical rod (6) is arranged and provided with an air duct accommodating metal frame (4) correspondingly matched with the negative pressure air duct (2), the upper end of the vertical rod (6) is provided with a roller (6d), and the lower end of the vertical rod (6) is provided with a guide rod (6a).A vertical pipe (6b) correspondingly matched with the guide rod (6a) is arranged, a rod body of the guide rod (6a) between the vertical rod (6) and a vertical pipe (3) is sleeved with a spring (6c), and the vertical pipe (6b) is further provided with a group of installing screw holes (3a).The anti-falling recycling drawing device has the advantages that the device is simple in structure and convenient to use and can be installed on existing production device directly conveniently; the negative pressure air duct can be prevented from being inclined, and the air suction amount of the air duct is effectively guaranteed.

Description

Technical field: [0001] The invention provides a storage device, specifically, a falling prevention recovery stretching device for a mine air duct. Background technique: [0002] During the construction of mine roadways, dust control has been paid more and more attention. Dust removal fans have been widely used due to their good dust control and dust removal effects. When the air duct is still hung, the top single-point suspension is adopted. During the operation of the dust removal fan, when the excavator retreats, the negative pressure air duct has a large margin, and the air duct is prone to sideways under the action of suction, resulting in The ventilation section decreases sharply, the air suction volume decreases, the dust removal effect is poor, and even the dust removal fan is damaged. In addition, when the mine tunnel is being excavated, the diameter of the tunnel often changes due to the indeterminate direction of the vein. Invention content: [0003] In order ...

AI Technical Summary

Problems solved by technology

[0002] During the construction of mine roadways, dust control has been paid more and more attention. Dust removal fans have been widely used due to their good dust control and dust removal effects. When the air duct is still hung, the top single-point suspension is adopted. During the operation of the dust removal fan, when the excavator retreats, the negative pressure air duct has a large margin, and the air duct is prone to sideways under the action of suction, resulting in The ventilation section decreases sharply, the air suction volume decreases, the dust removal effect is poor, and even the dust removal fan is damaged

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