阅读说明：本技术 一种套在钻杆外不停钻网眼式新式护渣爆破筒 (Novel non-stop drilling mesh type slag-protecting blasting cartridge sleeved outside drill rod ) 是由 李天北 于 2020-10-27 设计创作，主要内容包括：本发明提出了一种套在钻杆外不停钻网眼式新式护渣爆破筒,涉及爆破领域。一种套在钻杆外不停钻网眼式新式护渣爆破筒,包括爆破筒本体、设置于爆破筒本体内的点火起爆装置和套接于爆破筒本体内的钻杆,爆破筒本体开设有爆破孔,爆破筒本体和钻杆之间填充有与点火起爆装置连接的炸药,炸药的两侧沿钻杆的长度方向均设置有密封组件。本发明通过在钻杆壁面与爆破筒本体之间充分填充炸药并利用密封组件使炸药注满密闭空间,使炸药的爆破冲击作用力能够最从爆破孔内排出并全面高效的作用于岩石壁面,进而提高爆破威力及精度,爆破后保护钻杆正常工作,本装置结构简单,使用成本低廉,便于大范围推广。(The invention provides a novel mesh type slag-protecting blasting cartridge sleeved outside a drill rod and not stopping drilling, and relates to the field of blasting. The utility model provides a cover does not stop to bore new-type protecting sediment blasting cartridge of mesh formula outside drilling rod, includes the blasting cartridge body, sets up in this internal ignition initiating device of blasting cartridge and cup joints in this internal drilling rod of blasting cartridge, and the blast hole has been seted up to the blasting cartridge body, and it has the explosive of being connected with ignition initiating device to fill between blasting cartridge body and the drilling rod, and the length direction of the both sides edge drilling rod of explosive all is provided with seal assembly. According to the invention, the explosive is fully filled between the wall surface of the drill rod and the blasting cartridge body, and the sealing assembly is utilized to fill the closed space with the explosive, so that the blasting impact acting force of the explosive can be discharged from the blasting hole and acts on the rock wall surface comprehensively and efficiently, further the blasting power and precision are improved, and the normal work of the drill rod is protected after blasting.)

1. The novel slag-protecting blasting cartridge sleeved outside a drill rod and not stopping drilling is characterized by comprising a blasting cartridge body, an ignition initiation device arranged in the blasting cartridge body and a drill rod sleeved in the blasting cartridge body, wherein a blasting hole is formed in the blasting cartridge body, an explosive connected with the ignition initiation device is filled between the blasting cartridge body and the drill rod, and sealing components are arranged on two sides of the explosive along the length direction of the drill rod.

2. The novel slag-protecting blasting cartridge of the mesh type which is sleeved outside a drill rod and does not stop drilling is characterized in that the small-caliber ends of the blasting holes are arranged towards the wall surface of a rock.

3. The novel no-stop drilling mesh type slag-protecting blasting cartridge sleeved outside a drill rod as claimed in claim 1, wherein the sealing assembly is composed of a sealing base part and a sealing filler which are mutually interfered.

4. The novel no-stop drilling mesh type slag-protecting blasting cartridge sleeved outside a drill rod as claimed in claim 3, wherein the sealing filler is composed of mutually collided sealing mud and sealing sand, and the side of the sealing mud away from the sealing sand collides with the explosive.

5. The novel no-stop-drilling-mesh-type slag-protecting blasting cartridge sleeved outside a drill rod as claimed in claim 4, wherein the explosive is a liquid explosive, and the liquid explosive and the sealing filler are uniformly filled around the outer wall surface of the blasting cartridge body.

6. The novel mesh type slag-protecting blasting cartridge without stopping drilling outside a drill rod as claimed in claim 3, wherein the sealing base member is two metal rings, any one of the metal rings is sleeved in the blasting cartridge body, a drill bit of the drill rod penetrates through the metal ring and is sleeved on the drill rod, one end of the drill rod, far away from the drill bit, is positioned in the blasting cartridge body and is sleeved with the other metal ring, and the metal ring is abutted against one side, far away from the explosive, of the sealing filler.

7. The novel mesh type slag-protecting blasting cartridge sleeved outside a drill rod and not stopping drilling is characterized in that the blasting cartridge body is hollow, and the ignition initiation device is arranged on the inner wall surface of the blasting cartridge body.

8. The novel mesh type slag-protecting blasting cartridge sleeved outside a drill rod and not stopping drilling is characterized in that a filler injection hole is formed in the inner wall surface of a blasting cartridge body.

9. The novel mesh type slag-protecting blasting cartridge sleeved outside a drill rod without stopping drilling is characterized in that the filler injection holes comprise a pair of sand injection holes, mud injection holes and explosive injection holes which are positioned at two ends of the blasting cartridge body and are arranged at intervals, and the sand injection holes, the mud injection holes and the explosive injection holes are sequentially arranged along the length direction of the blasting cartridge body.

10. The novel mesh type slag-protecting blasting cartridge without drilling stoppage, which is sleeved outside a drill rod, as claimed in claim 9, wherein the filler injection holes are in a plurality of groups, and the plurality of groups of filler injection holes are uniformly distributed around the inner wall surface of the blasting cartridge body.

Technical Field

The invention relates to the field of blasting, in particular to a novel mesh type slag-protecting blasting cartridge which is sleeved outside a drill rod and does not stop drilling.

Background

When the underground mine is excavated, the hole positions are firstly distributed on the tunnel face, the blasting drill holes with certain depth are drilled on the hole positions, then the explosive is filled in the drill holes, and the detonating tube is used for detonating.

1. After the blast hole is drilled, the blast hole is cleaned, and explosive and a detonating tube are filled in the blast hole for direct detonation. At this moment, a part of the energy released by the explosive after explosion is released from the direction of the blast hole, and the explosion mode greatly reduces the energy of the explosive, has poor explosion effect and increases the cost.

2. In order to improve the blasting efficiency and better exert the efficiency of the explosive, after the blast hole is drilled, the blast hole is cleaned, the explosive and the detonating tube are filled, and then the anchoring agent is used for plugging, so that the energy released by the explosive after blasting is subjected to a reaction force, and the efficiency of the shock wave is better acted on the periphery of the hole wall. However, the plugging method has a great disadvantage that the anchoring agent can be used only after water is added, but the anchoring agent generates a large amount of heat after water is added, so that the detonating tube is damaged to a certain extent and has certain potential safety hazard.

3. The viscosity of the clay is 10-25 Pa.s. If the clay is used for plugging, the clay cannot be sent to the deep part of the blast hole and is in close contact with the explosive due to high viscosity, and the clay can only be plugged at the end part of the blast hole, so that an air pocket is formed between the explosive and the clay, the reaction force is reduced, and the blasting effect is reduced.

Meanwhile, the three blasting methods need to stop the operation of the drill rod, and slag removal treatment is needed after blasting is finished.

Disclosure of Invention

The invention aims to provide a novel mesh type slag-protecting blasting cartridge which is sleeved outside a drill rod and does not stop drilling, which can release explosion energy through a blast hole so as to improve the blasting precision and the blasting strength, and can realize the instant drilling stop blasting operation of the drill rod and the blasting cartridge in a matching way.

The embodiment of the invention is realized by the following steps:

the embodiment of the application provides a cover does not stop to bore new-type protecting slag explosive cartridge of mesh formula outside drilling rod, including the explosive cartridge body, set up in this internal ignition initiating device of explosive cartridge with cup joint in this internal drilling rod of explosive cartridge, the blast hole has been seted up to the explosive cartridge body, the explosive cartridge body with it has with the explosive that ignition initiating device connects to fill between the drilling rod, the both sides of explosive are followed the length direction of drilling rod all is provided with seal assembly.

In some embodiments of the invention, the small-diameter end of the blast hole is arranged towards the rock wall surface.

In some embodiments of the present invention, the sealing assembly comprises a sealing base member and a sealing packing which are mutually abutted.

In some embodiments of the present invention, the sealing filler is composed of sealing mud and sealing sand which are mutually collided, and the side of the sealing mud far away from the sealing sand is mutually collided with the explosive.

In some embodiments of the present invention, the explosive is a liquid explosive, and both the liquid explosive and the sealing filler are uniformly filled around the outer wall surface of the explosive cartridge body.

In some embodiments of the present invention, the sealing base member is a metal ring, the number of the metal rings is two, any one of the metal rings is sleeved in the blasting cartridge body, the drill bit of the drill rod penetrates through the metal ring and is sleeved on the drill rod, one end of the drill rod, which is far away from the drill bit, is positioned in the blasting cartridge body and is sleeved with another metal ring, and the metal ring is abutted against one side of the sealing filler, which is far away from the explosive.

In some embodiments of the present invention, the explosive cartridge body is hollow, and the ignition initiation device is disposed on an inner wall surface of the explosive cartridge body.

In some embodiments of the present invention, the inner wall surface of the explosive cartridge body is provided with a filler injection hole.

In some embodiments of the present invention, the filler injection holes include a pair of sand injection holes, mud injection holes, and explosive injection holes located at two ends of the explosive cartridge body and arranged at intervals, and the sand injection holes, the mud injection holes, and the explosive injection holes are sequentially arranged along a length direction of the explosive cartridge body.

In some embodiments of the present invention, the plurality of groups of the filler injection holes are uniformly distributed around the inner wall surface of the explosive cartridge body.

Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:

the embodiment of the application provides a cover does not stop to bore new-type protecting slag explosive cartridge of mesh formula outside drilling rod, including the explosive cartridge body, set up in this internal ignition initiating device of explosive cartridge and cup joint in this internal drilling rod of explosive cartridge, the blast hole has been seted up to the explosive cartridge body, it has the explosive of being connected with ignition initiating device to fill between explosive cartridge body and the drilling rod, and the both sides of explosive all are provided with seal assembly along the length direction of drilling rod. The blasting cartridge body is sleeved on a drill rod, the drilling rod is inserted into a drill hole with a certain depth and fixed, a certain gap is formed between the drill rod and the blasting cartridge body, explosives are filled between the drill rod and the blasting cartridge body, a closed cavity is formed by utilizing a sealing assembly before the explosives are filled, the explosives are sealed by the sealing assembly after being filled, so that the explosives meet the environment of explosion, the sealing assembly can enable the explosives to be in a closed space and fill the closed space by retraction, air pockets are avoided, the blasting impact action of the explosives is enabled to be forced out of the blasting hole and to be comprehensively acted on the wall surface of rock to realize fixed-point blasting impact, the blasting power is further ensured, the blasting precision is improved, and the blasting cartridge with the blasting hole is used for blocking and protecting the drill rod so that the blasted rock ballast can be drilled immediately; according to the invention, the explosive is fully filled between the wall surface of the drill rod and the blasting cartridge body, and the sealing assembly is utilized to fill the closed space with the explosive, so that the blasting impact acting force of the explosive can be discharged from the blasting hole and acts on the rock wall surface comprehensively and efficiently, further the blasting power and precision are improved, and the normal work of the drill rod is protected after blasting.

When the blasting cartridge is in actual use, a construction worker firstly sleeves the blasting cartridge body on the drill rod, the drill rod is started to enable the blasting cartridge body to be drilled into a drill hole along with the drill rod, when the drill rod is drilled to a drilling depth needing blasting, the construction worker fills explosives between the drill rod and the blasting cartridge body, after the explosives are filled, sealing assemblies for sealing the explosives are arranged at two ends in the axial direction of the blasting cartridge body, the explosives are located in a closed space between the blasting cartridge body and the drill rod, the construction worker can enable the blasting cartridge body or the drill rod to be fully filled with the explosives by rotating the blasting cartridge body, the sealing assemblies are driven to move by moving the drill rod to enable the explosives to fully fill air pockets existing between the blasting cartridge body and the drill rod, finally, the construction worker can achieve blasting in the drill hole by starting an ignition device connected with the explosives, and the operation can be carried out for many times according to the, until the blasting task is completed; the device adopts the blasting with the drill rod, the rotation is stopped when the drill rod drills to a blasting area to carry out instantaneous drill stopping blasting, the instantaneous drill stopping refers to that the drilling is stopped only instantaneously before, during and after the blasting, and the blasting procedure is finished within 1 minute to continue the drilling.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a section of a blasting cartridge according to an embodiment of the invention;

fig. 2 is a schematic side view of the explosive cartridge body according to the embodiment of the present invention.

Icon: 1-blasting cartridge body; 101-ignition priming device; 102-an explosive; 1021-hole for explosive injection; 103-a sealing base member; 104-sealing mud; 1041-a mud injection hole; 105-sealing sand; 1051-a sand injection hole; 2-blasting holes; and 3-drilling a rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "inner", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually arranged when the product of the present invention is used, the description is only for convenience and simplification of the description, but the indication or suggestion that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, cannot be understood as limiting the present invention.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the term "disposed" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Examples

Referring to fig. 1 and 2, fig. 1 is a schematic cross-sectional structure diagram of a blasting cartridge according to an embodiment of the invention; fig. 2 is a schematic side view of the explosive cartridge body 1 according to the embodiment of the invention.

The embodiment of the application provides a novel slag-protecting blasting cartridge of mesh formula of drilling does not stop outside the drilling rod of cover, including blasting cartridge body 1, set up ignition initiating device 101 in blasting cartridge body 1 and cup joint drilling rod 3 in blasting cartridge body 1, blasting cartridge body 1 has seted up blast hole 2, packs between blasting cartridge body 1 and the drilling rod 3 have the explosive 102 of being connected with ignition initiating device 101, and the length direction of drilling rod 3 is all provided with seal assembly along the both sides of explosive 102. The blasting cartridge body 1 is sleeved on the drill rod 3 and is fixed in a drill hole with a certain depth along with the drill rod 3, a certain gap is formed between the drill rod 3 and the blasting cartridge body 1, the explosive 102 is filled between the drill rod 3 and the blasting cartridge body 1, a closed cavity is formed by the sealing assembly before the explosive 102 is filled, the explosive 102 is sealed by the sealing assembly after being filled, so that the explosive 102 meets the blasting environment, the sealing assembly can enable the explosive 102 to be in a closed space and fill the closed space by collecting and filling, air pockets are avoided, the blasting impact effect of the explosive 102 is enabled to be forced out from the blasting hole 2 and to be comprehensively acted on the wall surface of rock to realize fixed-point blasting impact, further ensuring the blasting power, improving the blasting precision, and blocking the blasted ballast by the blasting cartridge with the blasting holes 2 to protect the drill rod 3 so that the drill rod can be drilled immediately after blasting; according to the invention, the explosive 102 is fully filled between the wall surface of the drill rod 3 and the blasting cartridge body 1, and the sealing assembly is utilized to fill the closed space with the explosive 102, so that the blasting impact acting force of the explosive 102 can be discharged from the blasting hole 2 and acts on the rock wall surface comprehensively and efficiently, further the blasting power and precision are improved, the drill rod 3 is protected from normal operation after blasting, and the device has the advantages of simple structure, low use cost and convenience for large-scale popularization.

In practical use, a construction worker firstly sleeves the blasting cartridge body 1 on the drill rod 3, the drill rod 3 is started to enable the blasting cartridge body 1 to be drilled into a drill hole along with the drill rod 3, when the drill rod 3 is drilled to a drilling depth needing blasting, the construction worker fills the explosive 102 between the drill rod 3 and the blasting cartridge body 1, after the explosive 102 is filled, sealing assemblies for sealing the explosive 102 are arranged at two ends of the axis direction of the blasting cartridge body 1 to enable the explosive 102 to be located in a sealed space between the blasting cartridge body 1 and the drill rod 3, the construction worker can fully fill the sealed space with the explosive 102 by rotating the blasting cartridge body 1 or the drill rod 3, the sealing assemblies are driven to move by moving the drill rod 3 to enable the explosive 102 to fill the air cavity existing between the blasting cartridge body 1 and the drill rod 3, and finally the construction worker can realize blasting in the drill hole by starting the ignition initiation device 101 connected with the explosive 102, by analogy, multiple times of blasting operation can be carried out according to the operation flow until the blasting task is completed; the device is blasting with a drill rod 3, the drill rod 3 stops rotating when drilling to a blasting area to perform instantaneous drill stopping blasting, the instantaneous drill stopping means that drilling is stopped only instantaneously before, during and after blasting, and the blasting procedure is finished within 1 minute to continue drilling.

In some embodiments of the present invention, as shown in fig. 1, the small-diameter end of the blast hole 2 is arranged toward the rock wall, and the small-diameter end face of the blast hole 2 is arranged toward the rock wall, so that the blasting impact can be effectively diffused on the rock wall, thereby achieving comprehensive blasting, improving the blasting strength, and simultaneously blocking rock slag generated after blasting from entering the blasting cartridge body 1.

The blast hole 2 in this embodiment is circular truncated cone-shaped, but is not limited thereto, and a step-shaped may be adopted in other embodiments.

In some embodiments of the invention, as shown in fig. 1, the sealing assembly is comprised of a sealing base 103 and a sealing packing that interfere with each other.

The sealing base part 103 in this embodiment is used for further sealing the sealing filler, so that the occurrence of pores caused by uneven sealing of the sealing filler is avoided, and the sealing base part 103 can ensure that the overall sealing performance of the blasting machine is improved, thereby ensuring the blasting effect.

In some embodiments of the invention, as shown in fig. 1, the seal pack is composed of mutually abutting seal mud 104 and seal sand 105, the side of the seal mud 104 remote from the seal sand 105 abutting the explosive charge 102.

The sealing mud 104 in this embodiment can seal the explosive 102 in airtight space, because the sealing mud 104 is the fluid form, can guarantee that the leakage can not appear under the sealed effect of sealing mud 104 in explosive 102, guarantee that explosive 102 can detonate in airtight space, simultaneously because sealing mud 104 has certain mobility, utilize the packing of sealed sand 105 to block up the flow space of sealing mud 104, further improve the leakproofness of explosive 102, guarantee going on smoothly of blasting operation.

In some embodiments of the invention, as shown in fig. 1, the explosive 102 is a liquid explosive and both the liquid explosive and the sealing filler are uniformly packed around the outer wall of the explosive cartridge body 1.

The explosive 102 in this embodiment is a liquid explosive, and the liquid explosive can be divided into an elemental liquid explosive and a mixed liquid explosive. The comprehensive performance of the single-substance liquid explosive is poor, while the liquid explosive adopted by the invention is a mixed liquid explosive, and the mixed liquid explosive can overcome the defects of the single-substance liquid explosive and keep the advantages of the single-substance liquid explosive; liquid explosives generally have good energy, flow, safety and handling characteristics. The liquid explosive has higher detonation heat, the detonation heat of the nitric acid NFDA4 hydrazine liquid explosive is 6720kJ/kg, and the detonation heat of the octogen is only 5695 kJ/kg; the volume energy is high, and the nitric acid NFDA4 hydrazine liquid explosive is 10.67kJ/cm 3; while the trinitrotoluene is only 6.09kJ/cm3, and the octogen is only 10.5kJ/cm 3. The liquid explosive has uniform density and stable explosion speed. In the liquid explosive, a solid detonation system is a uniform and stable continuous phase, after detonation is triggered by impact, chemical reaction is carried out at high speed in a very short time, the influence of radial expansion is relatively small, high-speed propagation can be kept, and the pipe diameter effect is small. Most liquid explosives have good initiation and detonation transfer performance and smaller critical diameter; the liquid explosive is not limited by the operation field and means, the raw material components can be transported independently and matched on the site, the liquid explosive can also be pumped to the use site, the blasting container can be positioned and arranged at first, and the explosive can be filled after the installer withdraws, so that the explosive carrying operation time is avoided or shortened, and the safety degree is increased.

In some embodiments of the present invention, as shown in fig. 1, the sealing base member 103 is a metal ring, the number of the metal rings is two, any metal ring is sleeved in the blasting cartridge body 1, the drill bit of the drill rod 3 passes through the metal ring, and the metal ring is sleeved on the drill rod 3, one end of the drill rod 3 away from the drill bit is positioned in the blasting cartridge body 1 and is sleeved with another metal ring, and the metal ring is abutted against one side of the sealing filler away from the explosive 102.

The sealing base member 103 in this embodiment is made of austenitic steel, which is steel having an austenitic structure after normalizing. The alloying elements (Ni, Mn, N, Cr, etc.) added to the steel can make the normalized metal have a stable austenite structure. The steel such as 1Cr18Ni9 and 1Cr18Ni9Ti which are commonly used for chemical water equipment and steam sampling pipes of thermal power plants belong to the same type. The steel has better oxidation resistance, acid resistance and impact resistance, so that the sealing base part 103 can bear the impact caused by explosion, the blasting impact can be comprehensively released towards the rock wall surface, and the waste of blasting energy is avoided; meanwhile, the sealing base part 103 is arranged to seal the sealing sand 105, so that the tightness of the explosive 102 in the invention is ensured; in this embodiment, the metal ring at the drill bit end of the drill rod 3 is fixedly connected to the explosive cartridge body 1, and the other metal ring is fixedly connected to the other end of the drill rod 3 in the explosive cartridge body 1, so that the constructor can push the drill rod 3 to move the metal ring connected to the drill rod 3 to the position of the other metal ring, and further push the explosive 102 and the sealing filler to fill the closed space.

In some embodiments of the present invention, as shown in fig. 2, the explosive cartridge body 1 is hollow, and the ignition and initiation device 101 is disposed on the inner wall surface of the explosive cartridge body 1.

The explosive cartridge body 1 in this embodiment is cylindrical hollow, makes the explosive cartridge body 1 can overlap and establish on drilling rod 3 and carry out blasting operation along with it gets into drilling, and the setting of priming device 101 that will ignite simultaneously makes constructor can be more convenient set up and ignite the detonation point on the internal face of explosive cartridge body 1, makes priming device 101 that ignites be more convenient for install.

In some embodiments of the present invention, as shown in fig. 1, the inner wall surface of the explosive cartridge body 1 is provided with a filler injection hole. The filler injection holes are formed in the inner wall surface of the blasting cartridge body 1, so that the explosive 102 and the filler for sealing can be conveniently injected, and the early preparation operation of blasting is more convenient.

In some embodiments of the present invention, as shown in fig. 1, the filler injection holes include a pair of sand injection holes 1051, mud injection holes 1041 and explosive injection holes 102 located at two ends of the explosive cartridge body 1 and arranged at intervals, and the sand injection holes 1051, mud injection holes 1041 and explosive injection holes 102 are arranged in sequence along the length direction of the explosive cartridge body 1. The two sides of the explosive 102 can be sealed by the sealing sand 105 and the sealing mud 104 by arranging the sand injection hole 1051, the mud injection hole 1041 and the explosive 102 injection hole at the two ends of the explosive cylinder body 1, so that a closed space required by the explosion of the explosive 102 is formed; when the explosive 102 is sealed, firstly, the sealing sand 105 is injected through the sand injection hole 1051, and the sealing mud 104 is injected through the mud injection hole 1041 for primary sealing, after the explosive 102 is injected, the injection amount of the sealing sand 105 and the sealing mud 104 is increased, so that the sealing sand 105 is pushed to one side of the explosive 102, and the sand injection hole 1051, the mud injection hole 1041 and the explosive 102 are protected.

In some embodiments of the present invention, as shown in fig. 1, the filler injection holes are provided in multiple groups, and the multiple groups of filler injection holes are uniformly distributed around the inner wall surface of the explosive cartridge body 1.

The filler injection holes in the embodiment are two groups, two groups of filler injection holes are arranged on the inner wall surfaces of two opposite sides of the blasting cartridge body 1, the time for filling materials is long due to the fact that a single group of filler injection holes are long, the condition of uneven filling is easy to occur, the explosive 102, the sealing mud 104 and the sealing sand 105 can be fully filled between the blasting cartridge body 1 and the rock wall surface in the drilling hole by arranging the multiple groups of filler injection holes on the inner wall surface of the blasting cartridge body 1, the explosive 102, the sealing mud 104 and the sealing sand 105 can fully fill the closed space through rotation of the blasting cartridge body 1, the blasting safety is guaranteed, and the condition that the explosive 102 leaks is avoided.

In some embodiments of the invention, as shown in figure 1, the ignition primer 101 is an electric fire. The most basic function of an electronically controlled ignition system (ESA) is spark advance control, where blasting operations are performed by an electronic spark ignited charge 102,

the ignition and initiation device 101 in the above embodiment is a fuse, which is also called a firing line, an initiating explosive device, which is made by wrapping black powder and a core wire with cotton or hemp, and applying a moisture-proof agent to the surface, and is usually ignited by a match or a firing tube. The burning rate is about 1 cm per second. Can be used in certain ammunition (grenades, mines, etc.) as a timing or delay member.

In the above embodiment, the ignition and initiation device 101 is an electric detonator (electric detonator), also called electric tube, which is a detonator that initiates initiation by electric energy. The instantaneous electric detonator is called as instantaneous electric detonator after being excited, the electric detonator which is exploded at a certain time is called as delay electric detonator, and the electric detonator with antistatic property is called as antistatic electric detonator; the electric detonator in the embodiment adopts a second delay electric detonator which is a second delay electric detonator with the interval of 1-2 s. The delay electric detonator generally does not adopt delay powder as a delay agent because the delay time interval is longer, so that the delay electric detonator is convenient to produce and process and simplifies the structure and the process, a slow-burning fuse is used as a delay device, and the quality of the slow-burning fuse directly influences the delay second measurement precision.

To sum up, the embodiment of the application of the invention provides a mesh type novel slag-protecting blasting cartridge sleeved outside a drill rod and not stopping drilling, which comprises a blasting cartridge body 1, an ignition and initiation device 101 arranged in the blasting cartridge body 1 and a drill rod 3 sleeved in the blasting cartridge body 1, wherein a blasting hole 2 is formed in the blasting cartridge body 1, an explosive 102 connected with the ignition and initiation device 101 is filled between the blasting cartridge body 1 and the drill rod 3, and sealing components are arranged on two sides of the explosive 102 along the length direction of the drill rod 3. The blasting cartridge body 1 is sleeved on the drill rod 3 and is fixed in a drill hole with a certain depth along with the drill rod 3, a certain gap is formed between the drill rod 3 and the blasting cartridge body 1, the explosive 102 is filled between the drill rod 3 and the blasting cartridge body 1, a closed cavity is formed by the sealing assembly before the explosive 102 is filled, the explosive 102 is sealed by the sealing assembly after being filled, so that the explosive 102 meets the blasting environment, the sealing assembly can enable the explosive 102 to be in a closed space and fill the closed space by collecting and filling, air pockets are avoided, the blasting impact effect of the explosive 102 is enabled to be forced out from the blasting hole 2 and to be comprehensively acted on the wall surface of rock to realize fixed-point blasting impact, further ensuring the blasting power, improving the blasting precision, and blocking the blasted ballast by the blasting cartridge with the blasting holes 2 to protect the drill rod 3 so that the drill rod can be drilled immediately after blasting; according to the invention, the explosive 102 is fully filled between the wall surface of the drill rod 3 and the blasting cartridge body 1, and the sealing assembly is utilized to fill the closed space with the explosive 102, so that the blasting impact acting force of the explosive 102 can be discharged from the blasting hole 2 and acts on the rock wall surface comprehensively and efficiently, further the blasting power and precision are improved, the drill rod 3 is protected from normal operation after blasting, and the device has the advantages of simple structure, low use cost and convenience for large-scale popularization.

In practical use, a construction worker firstly sleeves the blasting cartridge body 1 on the drill rod 3, the drill rod 3 is started to enable the blasting cartridge body 1 to be drilled into a drill hole along with the drill rod 3, when the drill rod 3 is drilled to a drilling depth needing blasting, the construction worker fills the explosive 102 between the drill rod 3 and the blasting cartridge body 1, after the explosive 102 is filled, sealing assemblies for sealing the explosive 102 are arranged at two ends of the axis direction of the blasting cartridge body 1 to enable the explosive 102 to be located in a sealed space between the blasting cartridge body 1 and the drill rod 3, the construction worker can fully fill the sealed space with the explosive 102 by rotating the blasting cartridge body 1 or the drill rod 3, the sealing assemblies are driven to move by moving the drill rod 3 to enable the explosive 102 to fill the air cavity existing between the blasting cartridge body 1 and the drill rod 3, and finally the construction worker can realize blasting in the drill hole by starting the ignition initiation device 101 connected with the explosive 102, by analogy, multiple times of blasting operation can be carried out according to the operation flow until the blasting task is completed; the device is blasting with a drill rod 3, the drill rod 3 stops rotating when drilling to a blasting area to perform instantaneous drill stopping blasting, the instantaneous drill stopping means that drilling is stopped only instantaneously before, during and after blasting, and the blasting procedure is finished within 1 minute to continue drilling.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.