CN204718511U

CN204718511U - Bullet is split in a kind of explosion expansion

Info

Publication number: CN204718511U
Application number: CN201520305740.6U
Authority: CN
Inventors: 唐满元; 高文蛟; 佐江宏
Original assignee: North China Institute of Science and Technology; Shanxi Luan Environmental Energy Development Co Ltd
Current assignee: North China Institute of Science and Technology; Shanxi Luan Environmental Energy Development Co Ltd
Priority date: 2015-05-12
Filing date: 2015-05-12
Publication date: 2015-10-21
Anticipated expiration: 2025-05-12

Abstract

Bullet is split in a kind of explosion expansion, comprise the projectile tail, body and the bullet that connect as one in a tubular form, the described endoporus at projectile tail opens internal thread, projectile tail and body junction are a cannelure, connecting hole is had in cannelure, the outer wall of described bullet has the external screw thread matched with the inner hole thread of projectile tail, the head of bullet is arc-shaped.During use, be arranged on by explosive in body, previous expansion splits the bullet of the projectile tail of bullet and latter by screwed tight, and the powder column that bullet is connected to form certain length is split in multiple expansion, split the aperture at the projectile tail place of bullet with a rope through first expansion, then with special explosive loader, powder column is disclosed in big gun hole.If as met " jam " phenomenon in feeding process, the special rope split on bullet by being located on powder column first expansion pulls it, and not only solves the continuous charging problem of extra-deep-hole blasting, also solves the shotfiring safety problem of extra-deep-hole blasting powder charge.

Description

Bullet is split in a kind of explosion expansion

Technical field

The utility model relates to a kind of explosion expansion and splits bullet, and bullet is split in especially a kind of expansion being applicable to extra-deep-hole blasting blasting charge bag.

Background technology

Superdeep holes expansion is split blasting technique and is widely applied in the production of coal in China system, resist plate process etc. stubbornly as anti-reflection technology during gas drainage under suction, stope all to need expansion to split blasting technique to support, but, extra-deep-hole blasting can, smoothly the assigned address of required packing explosive to design, be the key realizing extra-deep-hole blasting.At present, the explosive that coal system uses is all flexible packages, all very dark and the rough and rock dust in big gun hole due to extra-deep-hole blasting adheres on hole wall, cartridge bag when making powder charge is easy to breakage or " jam " in big gun hole in the process pushed, powder charge is difficult to install to position or cartridge bag can not continuous charging, so not only explosion is difficult to the demolition effect reaching design, and in big gun hole, some explosive can't all detonate, and brings unsafe hidden danger to subsequent production.Therefore, developing a housing (being the body expanding and split demolition bomb) that can realize deep hole explosive has just become extra-deep-hole blasting technology can be the key of production and construction service.

Summary of the invention

The purpose of this utility model overcomes in prior art to have problems, provide a kind of structure simple, avoid jam, in extra-deep-hole blasting process, efficiently bullet split in the explosion expansion that explosive is put in big gun hole.

For achieving the above object, bullet is split in explosion expansion of the present utility model, comprise the projectile tail, body and the bullet that connect as one in a tubular form, the described endoporus at projectile tail opens internal thread, projectile tail and body junction are a cannelure, have connecting hole in cannelure, the outer wall of described bullet has the external screw thread matched with the inner hole thread of projectile tail, the head of bullet is arc-shaped.

Described projectile tail, body and bullet adopt the PVC material of high strength to make.

The external thread length of described bullet is greater than 100mm, and the spacing of screw thread is 8 ~ 10mm.

The length of described body is 500 ~ 600mm, and body external diameter is 80 ~ 100mm, and body wall thickness is 2mm.

The diameter connecing hole on described body is 3 ~ 5mm.

Beneficial effect: the utility model compared with prior art has the following advantages:

1, explosive and the external world are separated, and there is certain airtight effect;

2, compact siro spinning technology between body and body, each gap distance expanding the distance split between body and be less than explosive, ensure that the safety in powder charge process;

If 3, there is " jam " phenomenon in powder charge process, can by powder column being pulled out through expanding the rope splitting projectile tail, powder charge again behind cleaning big gun hole;

4, bullet is split in the expansion that PVC material makes has anti-flammability, high strength, and its housing can all crushing destroy simultaneously;

5, the expansion that PVC material makes is split and is played material source and want extensively, low price, is easy to processing and shaping;

6, by the utility model, can be safe, efficient, economical complete the explosion of superdeep holes blast hole projectile filling.

Accompanying drawing explanation

Fig. 1 is main TV structure figure of the present utility model;

Fig. 2 is plan structure figure of the present utility model:

Fig. 3 is mounting structure figure of the present utility model.

In figure: projectile tail-1, body-2, bullet-3, connecting hole-4, explosive-5, powder column-6.

Detailed description of the invention

Below in conjunction with drawings and Examples, the utility model is described in detail.

As shown in Figure 1 and Figure 2, bullet is split in a kind of explosion expansion, form primarily of the projectile tail 1 connected as one in a tubular form, body 2 and bullet 3, the described endoporus at projectile tail 1 opens internal thread, projectile tail 1 and body 2 junction are a cannelure, have connecting hole 4 in cannelure, the diameter connecing hole 4 on described body 2 is 3 ~ 5mm; The length of described body 2 is 500 ~ 600mm, and body external diameter is 80 ~ 100mm, and body wall thickness is 2mm.The outer wall of described bullet 3 has the external screw thread matched with the inner hole thread of projectile tail 1, the external thread length of described bullet 3 is greater than 100mm, and the spacing of screw thread is 8 ~ 10mm.The head of bullet 3 is arc-shaped.Described projectile tail 1, body 2 and bullet 3 adopt the PVC material of high strength to make.

Use procedure, is arranged on explosive 5 in body 2, and the bullet 3 that bullet is split in the previous expansion projectile tail 1 that splits bullet and a rear expansion is together by a threaded connection, according to on-site actual situations explosive payload number determine to expand the number splitting bullet.Multiple expansion is split the powder column 6 that bullet is connected to form certain length, as shown in Figure 3.Split the aperture 4 at the projectile tail place of bullet with a rope through first expansion, then with special explosive loader, powder column 6 is disclosed in big gun hole.If as met " jam " phenomenon in feeding process, the special rope split on bullet by first expansion on powder column 6 pulls it, again powder column 6 is sent in big gun hole after big gun hole is cleaned out, so not only solve the continuous charging problem of extra-deep-hole blasting, also solve the shotfiring safety problem of extra-deep-hole blasting powder charge.

The various embodiments described above are only for further describing the purpose of this utility model, technical scheme and beneficial effect; be not limited to the utility model; all within spirit of the present utility model and principle; any amendment of making, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims

1. bullet is split in an explosion expansion, it is characterized in that: it comprises the projectile tail (1), body (2) and the bullet (3) that connect as one in a tubular form, the described endoporus at projectile tail (1) opens internal thread, projectile tail (1) and body (2) junction are a cannelure, connecting hole (4) is had in cannelure, the outer wall of described bullet (3) has the external screw thread matched with the inner hole thread of projectile tail (1), the head of bullet (3) is arc-shaped.

2. bullet is split in a kind of explosion expansion as claimed in claim 1, it is characterized in that: described projectile tail (1), body (2) and bullet (3) adopt the PVC material of high strength to make.

3. bullet is split in a kind of explosion expansion as claimed in claim 1, it is characterized in that: the external thread length of described bullet (3) is greater than 100mm, and the spacing of screw thread is 8 ~ 10mm.

4. bullet is split in a kind of explosion expansion as claimed in claim 1, it is characterized in that: the length of described body (2) is 500 ~ 600mm, and body external diameter is 80 ~ 100mm, and body wall thickness is 2mm.

5. bullet is split in the kind explosion expansion as described in claim 1 or 4, it is characterized in that: the diameter of the connecting hole (4) on described body (2) is 3 ~ 5mm.