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Device and method used for quick dust fall during tunnel blasting

A technology of dust suppression and tunneling, which is applied in the field of tunnel dust removal, which can solve problems such as poor adjustment, influence of construction personnel's sight, and damage to construction personnel's respiratory system, so as to achieve precise settlement, speed up project progress, and improve work efficiency.

Inactive Publication Date: 2019-04-16
EAST CHINA JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the construction of the tunnel, a large amount of dust will be generated during the blasting process, which will affect the sight of the construction personnel inside the tunnel and also endanger the respiratory system of the construction personnel. However, the current dust suppression and dust removal devices are not effective enough to deal with the dust. Ideal, its adjustability is poor, and it cannot meet the actual dust reduction effect. For this reason, a device and method for rapid dust reduction during tunnel blasting are provided to solve the above problems, realize rapid and comprehensive settlement of dust, and improve tunnel performance. construction efficiency

Method used

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  • Device and method used for quick dust fall during tunnel blasting
  • Device and method used for quick dust fall during tunnel blasting
  • Device and method used for quick dust fall during tunnel blasting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] see Figure 1-4 , a device for quick dust reduction during tunnel blasting, comprising a base plate 1, a rotating plate 10 is rotatably arranged on the base plate 1, a water tank 22 is fixedly installed on the rotating plate 10, a servo motor II9 is ​​fixedly installed on the rotating plate 10, a servo The output shaft of the motor II9 is ​​coaxially fixed with a screw mandrel 2, the threaded connection sleeve on the screw mandrel 2 is provided with a threaded sleeve block 24, and a support rod 23 is hinged between the threaded sleeve block 24 and the lifting plate 11, and the upper surface of the rotating plate 10 rotates The lifting plate 11 is installed in the formula, and the blowing mechanism is fixed on the lifting plate 11.

[0027] The servo motor II9 can drive the screw mandrel 2 to drive the threaded sleeve block 24 horizontally while the screw mandrel 2 rotates. The threaded sleeve block 24 is supported and adjusted by the support rod 23 to lift the angle of ...

Embodiment 2

[0032] On the basis of embodiment 1, in addition, the servomotor III26 is fixedly installed on the lifting plate 11, the output shaft of the servomotor III26 is coaxially fixed with the worm screw II27, and the worm wheel II28 that is connected with it is arranged on the top of the worm screw II27, and the worm wheel II28 is the same The shaft is fixed with a transmission gear 29, and the bottom surface of the telescopic tube 20 is fixed with a rack 30 meshing with the transmission gear 29.

[0033] The servo motor III26 can drive the worm II27 to rotate, and the worm II27 drives the transmission gear 29 to rotate through the meshing worm wheel II28, and the transmission gear 29 drives the rack 30 to slide with the telescopic tube 20 relative to the casing 19, so as to realize the adjustment of the extension length of the telescopic tube 20. It may be that the water vapor is closer to the dust area and the dust reduction effect is improved.

[0034] Further, the inner wall of ...

Embodiment 3

[0038] On the basis of embodiment 2, a kind of dust fall method of the device of fast dust fall when being used for tunnel blasting, its steps are as follows:

[0039] Step 1. After the tunnel blasting, move the device for rapid dust reduction during tunnel blasting to the bottom of the tunnel excavation trolley close to the tunnel face, fill the water tank 22 with clean water, start the servo motor II9 to adjust the orientation of the telescopic tube 20 The area where dust suppression is to be carried out;

[0040]Step 2: Start the submersible pump to transport the clean water in the water tank 22 through the delivery hose 21, and the clean water is sprayed out through the atomizing nozzle 33. Pipe 20 realizes dust reduction treatment;

[0041] Step 3: Start the servo motor I6 to rotate and adjust the rotating plate 10 to realize the adjustment of the orientation of the telescopic tube 20 and perform circumferential dust reduction treatment.

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Abstract

The invention discloses a device and a method used for quick dust fall during tunnel blasting, and relates to the technical field of tunnel dust removal. The device comprises a bottom plate, wherein arotary plate is rotatably arranged on the bottom plate; a servo motor II is fixedly mounted on the rotary plate; the output shaft of the servo motor II is coaxially and fixedly equipped with a lead screw; and a plurality of atomizing spray heads which communicate with a ring tube are fixedly mounted in the peripheral direction of the inner wall of a telescopic tube. A method used for quick dust fall during tunnel blasting comprises the following step: step I, using the device for quick dust fall during tunnel blasting to an area which needs dust fall after tunnel blasting, injecting clean water into a water tank, and starting the servo motor II to regulate the telescopic tube to face towards a dust area. According to the device and the method disclosed by the invention, the servo motor IIdrives the lifting plate to rotate to regulate an elevation angle of the telescopic tube, so that dust at different height positions is subjected to dust fall treatment; and the rotary plate can rotate in the peripheral direction, so that the all-around ring-direction dust fall effect is realized, and therefore, the dust fall effect in a tunnel is greatly improved.

Description

technical field [0001] The invention relates to the technical field of tunnel dust removal, in particular to a device and method for rapid dust reduction during tunnel blasting. Background technique [0002] Blasting engineering refers to a construction method that uses explosives to excavate earth and stone, and to demolish or destroy foundations, buildings, and structures. There are many types of explosives. The explosives commonly used in construction projects mainly include ammonium nitrate explosives, nitroglycerin explosives and black powder. [0003] During the construction of the tunnel, a large amount of dust will be generated during the blasting process, which will affect the sight of the construction personnel inside the tunnel and also endanger the respiratory system of the construction personnel. However, the current dust suppression and dust removal devices are not effective enough to deal with the dust. Ideal, its adjustability is poor, and it cannot meet the...

Claims

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Application Information

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IPC IPC(8): F42D3/04F42D5/00
CPCF42D3/04F42D5/00
Inventor 于洋耿大新郭浩森徐长节童立红蒋亚龙
Owner EAST CHINA JIAOTONG UNIVERSITY