Variable-diameter kerf pipe
A slitting and variable technology, applied in blasting and other directions, can solve the problems of poor blasthole adaptability and high cost, and achieve the effect of improving blasthole adaptability
Pending Publication Date: 2021-04-30
HUAINAN MINING IND GRP +1
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- Abstract
- Description
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Problems solved by technology
Existing slit pipes are mostly made of plastic material, which is expensive; and the outer diameter is fixed. Due to the difference in the diameter of blastholes in different mines, the existing slit pipes have poor adaptability to blastholes.
Method used
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Embodiment 1
[0029] see Figure 1 to Figure 9 As shown, the variable-diameter slotted pipe provided by the embodiment of the present invention is mainly used in rock blasting engineering, and is especially developed for blasthole charges of different diameters.
[0030] The slit pipe is a cylindrical structure rolled from a bendable cardboard snap ring, and a plurality of strip-shaped slits 1 are provided in the axial direction on the side wall of the cylindrical structure, adjacent to each other. There is a partition 2 between the slits 1, such as figure 1 Shown; In the described side wall, be provided with the easy-tear line 3 that is convenient to tear off the paper card of predetermined thickness that a plurality of radial intervals are arranged, as figure 2 shown.
[0031] The variable-diameter slit pipe provided by the embodiment of the present invention is provided with a plurality of easy-tear lines 3 arranged radially at intervals in the side wall to facilitate tearing off a pa...
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The embodiment of the invention discloses a variable-diameter kerf pipe, and relates to blasting materials. The kerf pipe is of a cylindrical structure composed of two bendable hard paper cards, the hard paper cards are the first hard paper card and the second hard paper card respectively, the first edge and the second edge of each hard paper card are provided with extending tongue parts at intervals in the length direction, the tongue part of each first edge is provided with a plurality of easy-to-tear lines which are arranged at intervals and are convenient for tearing the tongue part by a preset length, and the tongue part of each second edge is provided with a plurality of strip-shaped slots which are arranged at intervals; the tongue part of the first edge of the first hard paper card is inserted into the slots in the tongue part of the second edge of the second hard paper card to be connected, and the tongue part of the first edge of the second hard paper card is inserted into the slots in the tongue part of the second edge of the first hard paper card to be connected, so that the kerf pipe is formed; and the connecting part forms a separation part between the adjacent kerfs. The outer diameter of the kerf pipe can be changed conveniently, and the blast hole adaptability of the kerf pipe can be improved to a certain extent.
Description
technical field [0001] The invention relates to blasting equipment, in particular to a variable-diameter slit pipe. Background technique [0002] As a common blasting equipment in directional blasting, slotted pipe plays an important role in rock blasting. Existing slitting pipes are mostly made of plastic material, and the cost is relatively high; and the outer diameter specification is fixed. Due to differences in blasthole diameters in different mines, the existing slitting pipes have poor adaptability to blastholes. Contents of the invention [0003] In view of this, an embodiment of the present invention provides a variable-diameter slit pipe, which facilitates changing the outer diameter of the slit pipe, thereby improving the blast hole adaptability of the slit pipe to a certain extent. [0004] To achieve the above object, the present invention adopts the following technical solutions: [0005] A variable-diameter slit pipe, the slit pipe is a cylindrical structu...
Claims
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IPC IPC(8): F42D1/00F42D3/04
CPCF42D1/00F42D3/04
Inventor 胡少银杨仁树谢平王雁冰徐华生马鑫民李亮任斌乔保峰李成孝李世辉
Owner HUAINAN MINING IND GRP