Tunnel boring dust prevention system

A technology of dust removal system and roadway, applied in the directions of dust prevention, fire prevention, safety device, etc., can solve the problems affecting the promotion and application of mechanization of comprehensive excavation in rock roadway, the threat to the health of employees, and the inability to engage in other work, so as to ensure physical health, The effect of improving visibility and controlling dust explosions

Pending Publication Date: 2017-12-26
HUAINAN MINING IND GRP
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Problems solved by technology

Among them, the dust hazard of fully-mechanized excavation in rock roadways is the most important problem. Dust will reduce the visibility of the roadway, making it impossible for workers to engage in other ...

Method used

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  • Tunnel boring dust prevention system
  • Tunnel boring dust prevention system
  • Tunnel boring dust prevention system

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Embodiment Construction

[0026] Such as Figure 1-5 As shown, the roadway excavation dust prevention system includes the comprehensive excavator spray system, dust removal system and roadway spray system, and the driver of the fully mechanized excavator adopts a positive pressure breathing device.

[0027] The spray system of fully mechanized excavator includes inner spray 1 and outer spray 2. The water outlet of inner spray 1 is arranged in a dot-shaped spherical shape on the cutting head of the fully mechanized excavator, and the water outlet of outer spray 2 is in a linear shape behind the cutting head. Arranged horizontally.

[0028] The spray system of the fully mechanized excavator is connected to the water supply pipeline. The main pipe of the water supply pipeline is provided with a water quality filter greater than or equal to 400 mesh. The water supply pipeline is divided into three branches at the fully mechanized excavator. The first branch is directly connected to the external spray 2, T...

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Abstract

The invention discloses a tunnel boring dust prevention system. The system comprises a roadheader spraying system, a dust removal system and a roadway spraying system; a water outlet of the roadheader spraying system is formed in a roadheader, and the roadheader spraying system is connected with a water supply pipeline; the dust removal system comprises a positive pressure air cylinder, a negative pressure air cylinder and a dust removal fan; one end of the positive pressure air cylinder faces a head-on part, and the other end of the positive pressure air cylinder is connected with an air supply pipeline; one end of the negative pressure air cylinder faces the head-on part, and the other end of the negative pressure air cylinder is connected with the dust removal fan; the roadway spraying system comprises a plurality of water curtains, the water curtains cover the whole section of a roadway, and the water curtains are arranged on the portions, behind the outlet of the dust removal fan, in the roadway at intervals. The system has the advantages that the comprehensive dust prevention system is used, the concentration of dust generated when the roadheader cuts rock is reduced, the visibility of a tunneling field is improved, the body health of workers is guaranteed, the working efficiency is improved, dust explosion can be effectively controlled, and safe production of a coal mine is ensured.

Description

technical field [0001] The invention relates to the field of roadway excavation dust prevention, in particular to a roadway excavation dust prevention system. Background technique [0002] The use of fully mechanized excavation in coal mine production not only improves the single entry of rock roadway, but also produces a series of problems. Among them, the dust hazard of fully-mechanized excavation in rock roadways is the most important problem. Dust will reduce the visibility of the roadway, making it impossible for workers to engage in other work when the fully-mechanized excavator is cutting rocks, and it will pose a threat to the health of employees and affect the comprehensive excavation of rock roadways. Promotion and application of mechanization. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a roadway excavation dust prevention system that can reduce the dust concentration when a fully mechanized excav...

Claims

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Application Information

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IPC IPC(8): E21F5/04E21F5/20E21C35/23
CPCE21C35/23E21F5/04E21F5/20
Inventor 刘新元
Owner HUAINAN MINING IND GRP
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