Unlock instant, AI-driven research and patent intelligence for your innovation.

A plugging device for preventing open-air blast holes from being blocked

A technology of blasting holes and blocking holes, which is applied in blasting and other directions, can solve the problems of high cost of use and complex structure, and achieve the effects of reduced weight, high strength and low price

Active Publication Date: 2018-07-31
CHINA UNIV OF GEOSCIENCES (WUHAN)
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the device can achieve the plugging effect, the structure is complex and the cost of use is high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A plugging device for preventing open-air blast holes from being blocked
  • A plugging device for preventing open-air blast holes from being blocked

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The plugging device provided by the invention to prevent open-air blastholes from being blocked has a structure such as figure 1 As shown, including the handle 2 and the plug body 1, the handle and the plug body are both plastic, and the handle and the plug body are formed as a whole through injection molding; the plug body 1 is a hollow cone with a taper of 1 :1~1:2, the diameter of the bottom surface of the cone is 3~4cm larger than the diameter of the blast hole, the conical surface of the plug body is provided with a rubber strip 4 along the generatrix, and the rubber strip protrudes from the conical surface; the handle 2 is a ring, the circular The ring is fixed at the center of the bottom surface of the cone, and the surface of the ring is coated with reflective paint 3, which is orange or yellow.

Embodiment 2

[0020] The plugging device provided by the invention to prevent open-air blastholes from being blocked has a structure such as figure 2 As shown, including the handle 2 and the plug body 1, the handle and the plug body are both plastic, and the handle and the plug body are formed as a whole through injection molding; the plug body 1 is a hollow cone with a taper of 1 :1~1:2, the diameter of the bottom surface of the cone is 3~4cm larger than the diameter of the blast hole, the conical surface of the plug body is provided with a rubber strip 4 along the generatrix, and the rubber strip protrudes from the conical surface; the handle 2 is a ring, the circular The ring is fixed at the center of the bottom surface of the cone, and the surface of the ring and the upper half of the plug body are all coated with reflective paint 3, which is orange or yellow.

[0021] In actual use, the connecting wires are inserted into the rings of each plugging device. When explosives need to be lo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a hole blocking device for preventing an open-air blast hole from being blocked. The hole blocking device at least comprises a lifting handle and a plug body; the lifting handle and the plug body are all plastic; the lifting handle and the plug are formed in at a time through injection molding and are an entirety; the plug body is a hollow cone, and the bottom diameter of the cone is 3-4 cm greater than the diameter of the blast hole; a rubber strip is arranged on the circular conical surface of the plug body along the generatrix, and the rubber strip extends out of the circular conical surface; and the lifting handle is a ring, the ring is fixed to the bottom center of the cone, and the surface of the ring is covered with a reflective coating. The hole blocking device provided by the invention is simple is structure, convenient to use and low in price, is integrally formed through injection molding at a time, is high in strength, is light in mass and can be utilized repeatedly; the problems that the blast holes are blocked by broken stones or other sundries because of rain, wind, machine movement and walking of workers on spot are avoided; and the lower portion of the hole blocking device is the hollow cone to reduce the integral weight, the upper portion of the hole blocking device is the ring for being fetched and used conveniently, and the ring is covered with the reflective coating for quickly positioning the blast holes.

Description

technical field [0001] The invention provides a plugging device for preventing open-pit blastholes from being blocked, and belongs to the technical field of blasting engineering in open-pit mining. Background technique [0002] In actual blasting engineering, many blastholes are not protected and positioned after the blastholes are drilled. Rain, wind, movement of machines, and movement of on-site personnel can easily cause the drilled blastholes to be damaged by gravel and debris. Other debris is blocked, and it takes time and effort to dig out the blockage. Some blastholes are blocked and even need to be refilled. [0003] The Chinese invention patent "A device for blocking the opening of blastholes in open-pit mines" (application number 201520867117.X) discloses a blocking device for blastholes, including a handle, a blocking body, a falling body, a return connecting wire, and a binding rope. Tie the top of the blocking body to the lower end of the handle with a binding ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F42D1/18
CPCF42D1/18
Inventor 尹涛周传波
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)