CN216523463U

CN216523463U - Blasting structure with CO smoke abatement function

Info

Publication number: CN216523463U
Application number: CN202122749747.5U
Authority: CN
Inventors: 张义平; 胡洁; 彭易飞; 黄薇; 侯天亮; 蒋云莱; 侯晨锋; 朱华杰
Original assignee: Guizhou University
Current assignee: Guizhou University
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-05-13
Anticipated expiration: 2031-11-11

Abstract

The utility model discloses a blasting structure with a CO smoke abatement function, which comprises a blast hole, a CO replacement reaction smoke abatement agent filling section I, an explosive filling section, a CO replacement reaction smoke abatement agent filling section II and a stemming blocking section, wherein the CO replacement reaction smoke abatement agent filling section I, the explosive filling section, the CO replacement reaction smoke abatement agent filling section II and the stemming blocking section are sequentially filled in the blast hole from inside to outside. The utility model can achieve the effect of directional fracture blasting, and adopts CO displacement reaction smoke suppressor arranged at two ends of the explosive section, the explosive and CO generate displacement reaction during explosion to generate nontoxic and harmless substances, thereby reducing harm, greatly improving safety, greatly improving operation environment and avoiding explosion, and 3. dust removal effect is that the water bag is burst by high-temperature and high-pressure shock waves generated by explosion of the explosive in the blast hole, so that water is filled in the water bag for atomization, and the water mist is bonded with dust in the tunnel, thereby achieving the effect of dust reduction.

Description

Blasting structure with CO smoke abatement function

Technical Field

The utility model belongs to the technical field of coal mine blasting structures, and relates to a blasting structure with a CO smoke elimination function.

Background

At present, the problem of CO overrun in the coal industry is increasingly severe. The blasting technology is an effective method for treating hard roof rock burst, but a large amount of high volume fraction CO is generated after blasting, the underground operation environment is seriously influenced, and spontaneous combustion is easy to occur or interference is generated in prediction and forecast of internal fire of a spontaneous combustion coal layer mine.

Disclosure of Invention

The technical problem to be solved by the utility model is as follows: provides a blasting structure with a CO smoke elimination function, which aims to solve the technical problems in the prior art.

The technical scheme adopted by the utility model is as follows: a blasting structure with a CO smoke elimination function comprises a blast hole, a first CO replacement reaction smoke elimination agent filling section, an explosive filling section, a second CO replacement reaction smoke elimination agent filling section and a stemming blocking section, wherein the first CO replacement reaction smoke elimination agent filling section, the explosive filling section, the second CO replacement reaction smoke elimination agent filling section and the stemming blocking section are sequentially filled in the blast hole from inside to outside.

The first filling section of the CO displacement reaction smoke suppressor and the second filling section of the CO displacement reaction smoke suppressor are sealed by sealing bags with NaOH and NaHC0₃And (3) forming a mixed solution.

The sealing bag is a plastic bag, and the sealing bag also comprises a foam sleeve layer, and the foam sleeve layer is in a horn mouth shape towards the explosive filling section.

The utility model has the beneficial effects that: compared with the prior art, the utility model can achieve the directional fracture blasting effect, and the smoke suppressor for CO replacement reaction is arranged at two ends of the explosive section, so that the explosive and CO generate replacement reaction during explosion to generate nontoxic and harmless substances, thereby reducing harm, greatly improving safety, greatly improving operating environment, avoiding explosion and dedusting: the water bag is burst by high-temperature and high-pressure shock waves generated by explosive explosion in the blast hole, so that water is filled in the water bag for atomization, and water mist is bonded with dust in the tunnel, thereby achieving the dust settling effect.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Detailed Description

The utility model is further described with reference to the accompanying drawings and specific embodiments.

Example 1: as shown in fig. 1, the blasting structure with the CO smoke abatement function comprises a blast hole 1, a first CO displacement reaction smoke abatement agent filling section 2, an explosive filling section 3, a second CO displacement reaction smoke abatement agent filling section 4 and a stemming blocking section 5, wherein the first CO displacement reaction smoke abatement agent filling section 2, the explosive filling section 3, the second CO displacement reaction smoke abatement agent filling section 4 and the stemming blocking section 5 are sequentially filled in the blast hole 1 from inside to outside, a detonator 6 is arranged at the bottom end of the explosive filling section 3, and the detonator 6 is connected to the outside of the blast hole 1 through a lead 7.

The first filling section 2 of the CO displacement reaction smoke suppressor and the second filling section 4 of the CO displacement reaction smoke suppressor are both packaged by sealing bags according to a certain proportion of NaOH and NaHC0₃The mixed solution is formed, the replacement reaction is good, and the CO removing effect is thorough. The sealing bag is a plastic bag and also comprises a foam jacket layer, the foam jacket layer is horn-mouth-shaped towards the explosive filling section 3 and is arranged to be filled with the sealing bag, on one hand, the sealing bag is prevented from being cut and damaged by drilling holes, the sealing bag has an elastic effect and improves installation safety, on the other hand, the foam can reduce resistance to the breakage of the sealing bag in the explosion process and is arranged to be horn-mouth, and the replacement reaction is conveniently caused when the sealing bag is rapidly burst and broken in the explosive explosion process.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and therefore, the scope of the present invention should be determined by the scope of the claims.

Claims

1. A blasting structure with CO smoke elimination function is characterized in that: the high-efficiency explosive-free blasting hole comprises a blasting hole (1), a CO replacement reaction smoke suppressor filling section I (2), an explosive filling section (3), a CO replacement reaction smoke suppressor filling section II (4) and a stemming plugging section (5), wherein the CO replacement reaction smoke suppressor filling section I (2), the explosive filling section (3), the CO replacement reaction smoke suppressor filling section II (4) and the stemming plugging section (5) are sequentially filled in the blasting hole (1) from inside to outside.

2. The blasting structure with the function of eliminating CO smoke according to claim 1, wherein: the first filling section (2) of the CO displacement reaction smoke suppressor and the second filling section (4) of the CO displacement reaction smoke suppressor are both packaged with NaOH and NaHC0 by adopting sealing bags₃And (4) forming.

3. The blasting structure with the function of eliminating CO smoke according to claim 2, wherein: the sealing bag is a plastic bag, and the sealing bag also comprises a foam sleeve layer, and the foam sleeve layer is in a horn mouth shape towards the explosive filling section (3).