CN220708233U - Explosive device convenient for liquid oxygen filling - Google Patents

Explosive device convenient for liquid oxygen filling Download PDF

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Publication number
CN220708233U
CN220708233U CN202321322487.6U CN202321322487U CN220708233U CN 220708233 U CN220708233 U CN 220708233U CN 202321322487 U CN202321322487 U CN 202321322487U CN 220708233 U CN220708233 U CN 220708233U
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liquid oxygen
tube
cracking
explosive device
cracking tube
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CN202321322487.6U
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黄跃文
孙利清
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Inner Mongolia Xilingol League Zhongyue Mining Development Co ltd
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Inner Mongolia Xilingol League Zhongyue Mining Development Co ltd
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Abstract

The utility model discloses an explosive device convenient for liquid oxygen filling, which comprises a liquid oxygen storage tank, a liquid oxygen distributor group and a prefabricated structure; the prefabricated structure comprises a cracking tube, an absorbent layer, a sealing surface skin, an exhaust pipe, an electric ignition head, a firing line and an initiator, wherein the top end of the cracking tube is opened, and the bottom end of the cracking tube is closed; the outlet of the liquid oxygen storage tank is communicated with the inlet of the liquid oxygen distributor group through a liquid oxygen conveying pipeline, and the outlets of all branch pipes of the liquid oxygen distributor group are detachably connected with the cracking pipe; the middle section and the lower section of the cracking tube are respectively wrapped with an absorbent layer, the absorbent layer is wrapped with a sealing epidermis in a sealing way, and a plurality of liquid oxygen outlets are uniformly formed in the side wall of the cracking tube in the sealing epidermis along the length direction; an exhaust pipe is communicated in a sealing surface close to the top end of the cracking tube in a sealing mode, an electric ignition head is installed on one side of the bottom of the sealing surface, one end of the electric ignition head is connected with a firing cable, and one end of the firing cable is connected with an initiator.

Description

Explosive device convenient for liquid oxygen filling
Technical field:
the utility model relates to the technical field of blasting, in particular to an explosive device convenient for liquid oxygen filling.
The background technology is as follows:
the blasting engineering is a technology for destroying or deforming the medium around the explosive by utilizing the huge energy released by the explosive in the moment of explosion, thereby achieving a certain engineering purpose. In mining engineering, blastholes are drilled in ore or rock, explosives are charged into the blastholes, and the ore or rock is blasted from their parent, called blasting; among the most widely used in blasting are powder explosives and emulsion explosives. However, the application of the emulsion explosive in medium-length hole earth-rock blasting is greatly limited, and the main reason is that the strip-shaped emulsion explosive is particularly easy to cause a loading clamping hole for mine geology with poor rock structure; if the powder explosive is adopted, a large amount of dust and harmful substances are generated during blasting demolition, so that the surrounding environment is polluted, and the problem of environmental protection exists.
At present, some construction units do not generally use the traditional industrial explosive blasting method, but tend to use non-industrial explosive-liquid oxygen explosive, the existing liquid oxygen explosive is manufactured by wrapping combustible materials with paper, soaking the paper explosive in liquid oxygen to prepare explosive, then placing the explosive at the blasted position, and detonating by using a detonator, wherein the defects of the operation are as follows: the liquid oxygen explosive has high mechanical sensitivity and spark and flame sensitivity, and is easy to contact with external open fire and mechanical impact to cause false explosion when the liquid oxygen explosive is manufactured and moved to a blasting point, so that potential safety hazard is caused.
The utility model comprises the following steps:
the utility model aims to provide an explosive device convenient for liquid oxygen filling, which solves the problem that the existing liquid oxygen explosive is easy to contact with external open fire and mechanical impact to cause false explosion when being manufactured and moved to a blasting point.
The utility model is implemented by the following technical scheme: an explosive device facilitating liquid oxygen filling, comprising a liquid oxygen storage tank, a liquid oxygen distributor group and a plurality of prefabricated structures; the outlet of the liquid oxygen storage tank is communicated with the inlet of the liquid oxygen distributor group through a liquid oxygen conveying pipeline, and the outlet of each branch pipe of the liquid oxygen distributor group is detachably connected with the cracking pipe of the prefabricated structure.
Preferably, the prefabricated structure comprises a cracking tube, an absorbent layer, a sealing surface skin, an exhaust pipe, an electric ignition head, a firing line and an initiator, wherein the top end of the cracking tube is an inlet end, the bottom end of the cracking tube is closed, the absorbent layer is wrapped in the middle section and the lower section of the cracking tube, the sealing surface skin is wrapped in the absorbent layer in a sealing manner, and a plurality of liquid oxygen outlets are uniformly formed in the side wall of the cracking tube in the sealing surface skin along the length direction; the inside airtight intercommunication of sealed epidermis that is close to the pipe top that causes split has the blast pipe, install in the bottom one side of sealed epidermis the electricity is drawn together and is presented the head, the one end of electricity is drawn together the head and is connected with the firing cable, the one end of firing cable is connected with the initiator.
Preferably, the liquid oxygen distributor group comprises a plurality of liquid oxygen distributors which are connected in sequence, the liquid oxygen distributor comprises a sealed container, an inlet is formed in the top of one side of the sealed container, and a plurality of branch pipes are communicated with the bottom of the sealed container.
Preferably, each branch pipe outlet of the liquid oxygen distributor is connected with two cracking pipes through a three-way joint.
Preferably, the inlet end of the cracking pipe is a bell mouth, the bell mouth of the cracking pipe is connected with the three-way joint through a connecting piece, the connecting piece comprises a pipe sleeve and a nut sleeved outside the pipe sleeve, one end of the nut extends radially inwards to form a flange, the top end of the pipe sleeve extends radially outwards to form a flange, the flange of the pipe sleeve is clamped with the flange of the nut, the inlet end of the cracking pipe is arranged in the pipe sleeve in a penetrating manner, the outer wall of the bell mouth is abutted to the flange of the pipe sleeve, and the other end of the nut is in threaded connection with the three-way joint.
Preferably, the cracking tube is an aluminum tube.
Preferably, the wall thickness of the cracking tube is 0.6mm, and the inner diameter is 8mm.
Preferably, the absorbent layer is a toilet paper roll.
Preferably, the sealing skin is a plastic film.
Preferably, the liquid oxygen delivery line is a stainless steel tube.
The utility model has the advantages that: firstly, the cracking tube, the absorbent layer, the sealing surface skin, the exhaust tube, the electric ignition head, the firing line and the initiator can be processed in advance to manufacture a prefabricated structure, the prefabricated structure is directly transferred to a blasting site to be assembled with a liquid oxygen storage tank and a liquid oxygen distributor, the operation is simple, the installation is convenient, and the prefabricated structure is not contacted with liquid oxygen in the process of being transferred to the blasting site, so that the problems of false explosion and potential safety hazard initiation caused by contact of the liquid oxygen explosive with external open fire and mechanical impact in the transfer process are avoided; in addition, the liquid oxygen explosive prepared by the utility model has lower cost, does not have the problem of loading clamping holes compared with emulsion explosive, and has the advantages of environmental protection, safety and no pollution compared with powdery explosive.
Secondly, the liquid oxygen storage tank, the liquid oxygen distributor and the prefabricated structure can be installed on the blasting site, the liquid oxygen distributor group consists of a plurality of liquid oxygen distributors which are sequentially connected, and each branch pipe outlet of the liquid oxygen distributor can be detachably connected with two cracking pipes through a three-way joint, so that a plurality of prefabricated structures can be poured according to the actual blasting requirement on the site to manufacture explosives, and the actual requirement is met.
Description of the drawings:
in order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic view of a prefabricated structure installed in a blast hole.
Fig. 3 is a schematic structural view of the connector.
The components in the drawings are marked as follows: the liquid oxygen storage tank 1, the liquid oxygen distributor group 2, the liquid oxygen distributor 2.1, the prefabricated structure 3, the cracking tube 3.1, the bell mouth 3.1.1, the liquid oxygen outlet 3.1.2, the absorbent layer 3.2, the sealing surface layer 3.3, the exhaust pipe 3.4, the electric ignition head 3.5, the ignition wire 3.6, the initiator 3.7, the liquid oxygen delivery pipeline 4, the switch valve 5, the three-way joint 6, the connecting piece 7, the pipe sleeve 7.1, the flanging 7.1.1, the nut 7.2 and the blast hole 8.
The specific embodiment is as follows:
the following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the terms "center," "upper," "lower," "front," "rear," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
As shown in fig. 1-3, an explosive device convenient for liquid oxygen filling comprises a liquid oxygen storage tank 1, a liquid oxygen distributor group 2 and a plurality of prefabricated structures 3, wherein the liquid oxygen storage tank 1 adopts a liquid oxygen bottle in the embodiment, and manufacturers: the liquid oxygen storage tank 1 is used for storing liquid oxygen, in the liquid oxygen conveying process, a pressurizing valve of the liquid oxygen storage tank 1 is used for pressurizing and conveying the liquid oxygen, a refrigerator of the liquid oxygen storage tank 1 is used for cooling the liquid oxygen, the liquid oxygen distributor group 2 is composed of a plurality of liquid oxygen distributors 2.1 which are sequentially connected, in the embodiment, the liquid oxygen distributor group 2 adopts two liquid oxygen distributors 2.1, each liquid oxygen distributor 2.1 comprises a sealed container, an inlet is formed in the top of one side of the sealed container, a plurality of branch pipes are communicated with the bottom of the sealed container, valves are respectively arranged at the inlet of the sealed container and on each branch pipe, multiple paths of liquid oxygen can be conveyed into cracking pipes 3.1 at different positions simultaneously through the liquid oxygen distributors 2.1, the liquid oxygen conveying speed can be increased, the uniform conveying can be ensured, and the working efficiency can be improved; the liquid oxygen distributor 2.1 can also be replaced by a liquid oxygen vaporizer, the liquid oxygen vaporizer is the existing equipment, the specific structure is not repeated here, and the liquid oxygen vaporizer only plays the roles of uniformly distributing and simultaneously conveying multiple paths of liquid oxygen; each prefabricated structure 3 comprises a cracking tube 3.1, an absorbent layer 3.2, a sealing surface skin 3.3, an exhaust tube 3.4, an electric ignition head 3.5, a firing line 3.6 and an initiator 3.7, wherein the top end opening and the bottom end of the cracking tube 3.1 are closed, an aluminum tube is adopted, the tube wall thickness is 0.6mm, the inner diameter is 8mm, and the conveying speed of liquid oxygen can be ensured and the safety is ensured; the outlet of the liquid oxygen storage tank 1 is communicated with the inlet of the liquid oxygen distributor 2.1 through a liquid oxygen delivery pipeline 4, the liquid oxygen delivery pipeline 4 adopts a stainless steel pipe, the inner diameter is 10mm, the inner wall of the stainless steel pipe is smooth, the resistance is small, the pressure loss can be reduced by adopting the stainless steel pipe, the delivery cost is reduced, the stainless steel pipe is high-temperature resistant, low-temperature resistant and corrosion resistant, can safely work for a long time at the temperature of-270 ℃ to 400 ℃, the material performance is quite stable, and harmful substances cannot be separated out; in addition, the stainless steel pipe has good heat preservation performance, energy loss can be reduced, the heat preservation effect is achieved, the liquid oxygen delivery pipeline 4 is provided with the switch valve 5, when in use, the switch valve 5 is opened, liquid oxygen in the liquid oxygen storage tank 1 enters the liquid oxygen distributor 2.1 through the liquid oxygen delivery pipeline 4, each branch pipe outlet of the liquid oxygen distributor 2.1 is detachably connected with two cracking pipes 3.1 through the three-way joint 6, the inner diameter of each branch pipe outlet of the liquid oxygen distributor 2.1 is 10mm, the number of the cracking pipes 3.1 connected can be increased by adopting the three-way joint 6 according to actual conditions, a plurality of liquid oxygen distributors 2.1 which are sequentially connected are adopted according to actual explosion requirements on site, and each branch pipe outlet of each liquid oxygen distributor 2.1 is detachably connected with the two cracking pipes 3.1 through the three-way joint 6, so that explosives are filled to manufacture the explosives, and the actual requirements on site are met; the inlet end of the cracking tube 3.1 is a bell mouth 3.1.1, and the bell mouth 3.1.1 of the cracking tube 3.1 is detachably connected with the three-way joint 6 through a connecting piece 7, so that the on-site installation and the detachment are facilitated; the connecting piece 7 comprises a pipe sleeve 7.1 and a nut 7.2 sleeved outside the pipe sleeve 7.1, one end of the nut 7.2 extends radially inwards to form a flange, the top end of the pipe sleeve 7.1 extends radially outwards to form a flange 7.1.1, the flange 7.1.1 of the pipe sleeve 7.1 is clamped with the flange of the nut 7.2, the inlet end of a cracking pipe 3.1 is penetrated in the pipe sleeve 7.1, the outer wall of a bell mouth 3.1.1 is abutted with the flange 7.1.1 of the pipe sleeve 7.1, the end of a three-way joint 6 is provided with external threads, the other end of the nut 7.2 is connected with the three-way joint 6 through screwing the nut 7.2, and the edge of the bell mouth 3.1.1, the flange 7.1.1 of the pipe sleeve 7.1 and the flange of the nut 7.2 are mutually bonded and squeezed tightly, so that connection and sealing of pipes with different inner diameters are realized;
the cracking tube 3.1 comprises an upper section, a middle section and a lower section, wherein the middle section and the lower section are respectively sleeved with an absorbent layer 3.2, the absorbent layer 3.2 adopts toilet paper rolls, and the toilet paper is used as an absorbent, so that the advantages of low price, convenient purchase and good absorption effect are achieved; the outer of the absorbent layer 3.2 is wrapped with a sealing surface skin 3.3, the sealing surface skin 3.3 adopts a plastic film, and the absorbent layer 3.2 is sealed by the plastic film, so that the absorption efficiency of liquid oxygen is improved; a plurality of liquid oxygen outlets 3.1.2 are uniformly formed in the extending direction of the side wall of the cracking tube 3.1 in the sealing surface layer 3.3, and a plurality of liquid oxygen outlets 3.1.2 are arranged so as to facilitate liquid oxygen output, so that the contact area of an absorbent and liquid oxygen can be increased, and the absorption efficiency of liquid oxygen is greatly improved;
an exhaust pipe 3.4 is communicated in a sealing way in the sealing surface layer 3.3 close to the inlet end of the cracking tube 3.1, and the exhaust pipe 3.4 can smoothly discharge gas in the cracking tube 3.1 during liquid oxygen filling; the electric ignition head 3.5 is installed to one side of the bottom of the sealed epidermis 3.3, one end of the electric ignition head 3.5 is connected with the firing cable 3.6, one end of the firing cable 3.6 is connected with the initiator 3.7, the electric ignition head 3.5, the firing cable 3.6 and the initiator 3.7 are adopted to replace the detonator for detonation, and the electric ignition head has the characteristics of low price, convenient purchase and safe transportation, and the initiator 3.7 is adopted to ignite the firing head at the detonation station, so that the safety can be improved.
The cracking tube 3.1, the absorbent layer 3.2, the sealing surface skin 3.3, the exhaust pipe 3.4, the electric ignition head 3.5, the ignition wire 3.6 and the exploder 3.7 can be processed in advance to manufacture the prefabricated structure 3, the prefabricated structure 3 is directly transferred to a blasting site to be assembled with the liquid oxygen storage tank 1 and the liquid oxygen distributor 2.1, the operation is simple, the installation is convenient, and the prefabricated structure 3 is not contacted with liquid oxygen in the process of being transferred to the blasting site, so that the problem of false explosion and potential safety hazard initiation caused by contact of liquid oxygen explosive with external open flame and mechanical impact in the transfer process is avoided; in addition, the liquid oxygen explosive prepared by the utility model has lower cost, does not have the problem of loading clamping holes compared with emulsion explosive, and has the advantages of environmental protection, safety and no pollution compared with powdery explosive.
Working principle: firstly, vertically arranging a prefabricated structure 3 in a blast hole 8 of a blasting site, and enabling the upper section of a cracking tube 3.1 of the prefabricated structure 3 to be positioned outside the blast hole 8;
secondly, the pipe sleeve 7.1 passes through the nut 7.2, the flanging 7.1.1 of the pipe sleeve 7.1 is clamped on the protruding edge in the nut 7.2, the horn mouth 3.1.1 end of the cracking pipe 3.1 passes through the pipe sleeve 7.1, and the outer edge of the horn mouth 3.1.1 of the cracking pipe 3.1 is clamped with the flanging 7.1.1 of the pipe sleeve 7.1;
then, connecting the outlet of the liquid oxygen storage tank 1 with the inlet of the first liquid oxygen distributor 2.1 through a liquid oxygen delivery pipeline 4, connecting the outlet of the first liquid oxygen distributor 2.1 with the inlet of the second liquid oxygen distributor 2.1 through a pipeline, screwing the outlets of the branch pipes of the two liquid oxygen distributors 2.1 with one end of a three-way joint 6, respectively connecting the other two ends of the three-way joint 6 with a cracking pipe 3.1, and screwing the end of the three-way joint 6 with a nut 7.2 arranged on the cracking pipe 3.1;
finally, when liquid oxygen is poured, a switch valve 5 on a liquid oxygen delivery pipeline 4 is opened, liquid oxygen in the liquid oxygen storage tank 1 flows into a liquid oxygen distributor 2.1 through the liquid oxygen delivery pipeline 4, and the liquid oxygen is uniformly delivered into each cracking tube 3.1 through the liquid oxygen distributor 2.1; finally, liquid oxygen enters the sealing surface skin 3.3 through the liquid oxygen outlet 3.1.2, the liquid oxygen is absorbed by the absorbent, and air in the cracking tube 3.1 is discharged from the exhaust tube 3.4; when blue liquid oxygen is observed to be discharged from the exhaust pipe 3.4, the switch valve 5 is closed, the upper section of each cracking pipe 3.1 is cut off, liquid oxygen can be solidified under the ultralow temperature condition, the cracking pipe 3.1 (aluminum pipe) is in a closed state, the liquid oxygen storage tank 1 and the liquid oxygen distributor 2.1 are disassembled and removed, the electric igniting head 3.5 is ignited by the exploder 3.7, and the cracking pipe 3.1 is detonated, so that blasting operation is completed.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. An explosive device convenient for liquid oxygen filling is characterized by comprising a liquid oxygen storage tank, a liquid oxygen distributor group and a plurality of prefabricated structures; the outlet of the liquid oxygen storage tank is communicated with the inlet of the liquid oxygen distributor group through a liquid oxygen conveying pipeline, and the outlet of each branch pipe of the liquid oxygen distributor group is detachably connected with the cracking pipe of the prefabricated structure.
2. The explosive device convenient for liquid oxygen filling according to claim 1, wherein the prefabricated structure comprises a cracking tube, an absorbent layer, a sealing surface skin, an exhaust tube, an electric ignition head, a firing line and an initiator, wherein the top end of the cracking tube is an inlet end, the bottom end is closed, the absorbent layer is wrapped in the middle section and the lower section of the cracking tube, the sealing surface skin is wrapped in the absorbent layer in a sealing manner, and a plurality of liquid oxygen outlets are uniformly formed in the side wall of the cracking tube in the sealing surface skin along the length direction; the inside airtight intercommunication of sealed epidermis that is close to the pipe top that causes split has the blast pipe, install in the bottom one side of sealed epidermis the electricity is drawn together and is presented the head, the one end of electricity is drawn together the head and is connected with the firing cable, the one end of firing cable is connected with the initiator.
3. The explosive device convenient for liquid oxygen filling according to claim 2, wherein the liquid oxygen distributor group comprises a plurality of liquid oxygen distributors which are sequentially connected, the liquid oxygen distributor comprises a sealed container, an inlet is formed at the top of one side of the sealed container, and a plurality of branch pipes are communicated with the bottom of the sealed container.
4. An explosive device for facilitating liquid oxygen filling according to claim 3, wherein each branch pipe outlet of the liquid oxygen distributor is connected with two of the cracking pipes through a three-way joint.
5. The explosive device convenient for liquid oxygen filling according to claim 4, wherein the inlet end of the cracking tube is a horn mouth, the horn mouth of the cracking tube is connected with the three-way joint through a connecting piece, the connecting piece comprises a tube sleeve and a nut sleeved outside the tube sleeve, one end of the nut extends inwards to form a flange, the top end of the tube sleeve extends outwards in the radial direction to form a flanging, the flanging of the tube sleeve is clamped with the flange of the nut, the inlet end of the cracking tube is arranged in the tube sleeve in a penetrating manner, the outer wall of the horn mouth is abutted with the flanging of the tube sleeve, and the other end of the nut is in threaded connection with the three-way joint.
6. An explosive device for facilitating liquid oxygen filling according to claim 2, wherein the cracking tube is an aluminum tube.
7. An explosive device for facilitating liquid oxygen filling according to claim 2, wherein the wall thickness of the cracking tube is 0.6mm and the inner diameter is 8mm.
8. An explosive device for facilitating liquid oxygen infusion according to claim 2, wherein the absorbent layer is a toilet paper roll.
9. An explosive device for facilitating liquid oxygen infusion according to claim 2, wherein the sealing skin is a plastic film.
10. An explosive device for facilitating liquid oxygen filling according to claim 1, wherein the liquid oxygen transfer line is a stainless steel tube.
CN202321322487.6U 2023-05-25 2023-05-25 Explosive device convenient for liquid oxygen filling Active CN220708233U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321322487.6U CN220708233U (en) 2023-05-25 2023-05-25 Explosive device convenient for liquid oxygen filling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321322487.6U CN220708233U (en) 2023-05-25 2023-05-25 Explosive device convenient for liquid oxygen filling

Publications (1)

Publication Number Publication Date
CN220708233U true CN220708233U (en) 2024-04-02

Family

ID=90451288

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321322487.6U Active CN220708233U (en) 2023-05-25 2023-05-25 Explosive device convenient for liquid oxygen filling

Country Status (1)

Country Link
CN (1) CN220708233U (en)

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