Field machining device and method for small diameter explosive coil

A technology for on-site processing and processing devices, which is applied to ammunition, offensive equipment, weapon accessories, etc., can solve the problems of inconvenient access to small-diameter emulsion explosive rolls, and achieve the effects of high processing efficiency, simple use, and simple structure

Active Publication Date: 2017-12-15
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the inconvenient acquisition of small-diameter emulsion explosive rolls in current tunnel contour blasting projects, the present invention proposes a simple on-site processing device for small-diameter charge rolls and a processing method based on the device

Method used

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  • Field machining device and method for small diameter explosive coil
  • Field machining device and method for small diameter explosive coil
  • Field machining device and method for small diameter explosive coil

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Such as Figure 1-6 As shown, an on-site processing device for small-diameter explosive rolls can be used for processing finished emulsion explosive rolls with diameters of 32mm and 35mm. The device comprises a cylindrical plastic bag 1 and a reel 2 with a variable diameter. The cylindrical plastic bag 1 is mainly composed of a non-elastic bag body section 102 and an elastic opening end 101; The fixed collars at both ends of the cylinder, one end is a hollow collar 201, and the other end is a closed collar 202; the inner diameter of the hollow collar 201 is greater than the diameter of the cylindrical plastic bag 1, and the bottom of the hollow collar 201 and the closed collar 202 ring wall have Arc chute 201a, 202a; Closed collar 202 is provided with a rotating body 206 that can rotate around the side wall of the closed collar, and the end of rotating body 206 facing the inside of reel 2 is provided with a cylinder mold 206a, and the cylinder mold 206a The diameter is...

Embodiment 2

[0044] A method for on-site processing of small-diameter explosive coils, comprising the following steps:

[0045] Step 1, cutting the seal at one end of the pre-processed finished emulsion explosive roll with a diameter of 32mm or 35mm;

[0046] Step 2: Select a cylindrical plastic bag with a diameter of 25mm of suitable length according to the model of the pre-processed finished emulsion explosive roll, and put the elastic opening end of the cylindrical plastic bag with better telescopic deformation performance on the cut end of the finished emulsion explosive roll , and the incision end extends into the body of the inelastic bag close to the cylindrical plastic bag with poor stretchability;

[0047] Step 3, from the hollow collar, put the finished emulsion explosive roll covered with a cylindrical plastic bag into the reel, and the cylindrical mold connected with the rotating body in the reel is a cylindrical mold with a diameter of 25mm;

[0048] Step 4: Close the arc-sha...

Embodiment 3

[0050] A tunnel project adopts the drilling and blasting scheme for construction, and purchased a batch of emulsion explosive rolls with a diameter of 32mm. The specifications are that the length of a single section is 300mm, and the weight of a single section is 300g. Contour blasting technology is used for pre-splitting blasting. In order to ensure a better pre-splitting effect, the pre-splitting hole needs to use 25mm small-diameter explosive coils. Due to the lack of explosive coils of this specification, and the procurement is faced with problems such as complicated approval procedures, the present invention is now used for on-site blasting. Medicine volume processing, the specific implementation method is as follows:

[0051] Step 1: Cut off the seal of one end of the finished 32mm emulsified drug roll;

[0052] Step 2: Select a cylindrical plastic bag with a diameter of 25 mm and a suitable length according to the type of medicine roll to be processed; in this project, ...

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Abstract

The invention discloses a field machining device and method for a small diameter explosive coil. The machining device is composed of a barrel-shaped plastic bag and a variable diameter coiling block. According to the machining method, by cutting a sealing port in one end of a finished product emulsified explosive coil, a flowing channel is formed; an elastic opening end of the barrel-shaped plastic bag is arranged in the cutting port end of the finished product emulsified explosive coil in a sleeved manner; the cutting port end is made to stretch into a elasticity-free bag body segment portion closely abutting against the barrel-shaped plastic bag; the whole coil of explosive sleeved with the plastic bag is placed in the coiling block; by means of the extruding effect of the coiling block, an emulsified explosive in the explosive coil is extruded into the plastic bag, the plastic bag is made to be filled with the explosives; and the plastic bag and the shrunken finished product explosive coil jointly form the small diameter explosive coil conforming to the engineering requirement, and machining of the explosive coil is completed. The machining device is simple in structure and ingenious in design; and the machining method is convenient and fast in specific operating process. The field machining device and method for the small diameter explosive coil fill up the blank of the machining field of the small diameter explosive coil on the construction field, and the engineering quality of small and medium-sized tunnel contour blasting can be improved easily.

Description

technical field [0001] The invention belongs to the technical field of engineering blasting, and can be used in rock mass blasting construction in the fields of mines, water conservancy and hydropower, transportation, etc., and specifically relates to an on-site processing device and method for small-diameter explosive rolls. Background technique [0002] In the past ten years, engineering blasting technology has developed rapidly, and has played an important role in the construction of national economic infrastructure such as farmland water conservancy construction, mining excavation, and railway (highway) construction. In order to ensure that the reserved rock mass is shaped according to the designed contour surface and to prevent surrounding rock damage, contour-controlled blasting technology must be adopted. Traditional contour blasting generally uses axially spaced and radially uncoupled charges, and detonating cords are used to detonate each charge coil in series. In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42B33/02F42B33/00
CPCF42B33/00F42B33/0207
Inventor 陈明孙颖卢文波严鹏王高辉
Owner WUHAN UNIV
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