Blasting liquid oxygen device for open blasting construction

Abstract

The utility model discloses a blasting liquid oxygen device for open blasting construction. The blasting liquid oxygen device comprises a pressure-resistant cylinder, liquid suction paper, a solid comburent, an igniter, an exploder, a supporting table, a liquid oxygen box, a liquid outlet hole, a sealing film, a convex block, a liquid drainage assembly, a vertical plate, a spring, a top plate, a supporting disc, an ejector pin, a supporting rod, a plug pin, a supporting assembly, a heat insulation layer, a sleeve, a connecting rod and a supporting plate. The liquid oxygen blasting device belongs to the technical field of liquid oxygen blasting devices, the supporting rod can be released by pulling out the plug pin, the ejector pin is inserted into the liquid outlet hole to penetrate through the liquid oxygen box by pressing the lower portion of the supporting disc, and therefore liquid oxygen sealed in the liquid oxygen box can be discharged conveniently during blasting construction and infiltrates liquid absorbing paper below the liquid oxygen box. The liquid oxygen is prevented from being volatilized into the air during long-time transfer; the inclination angle of the supporting plate can be adjusted by rotating the connecting rod in the sleeve, the vertically-placed pressure-resistant cylinder can be stably supported after the top of the supporting plate abuts against the side wall of the supporting assembly, and therefore the situation that the pressure-resistant cylinder topples over, liquid oxygen leaks, and a human body is frostbitten is prevented.

Description

Technical Field

[0001] This utility model belongs to the technical field of blasting liquid oxygen devices, specifically referring to a blasting liquid oxygen device for open-pit blasting operations. Background Technology

[0002] In open-pit mining, blasting is often required. However, the commonly used explosive blasting is highly dangerous and polluting. Therefore, gas blasting is now also used in mining blasting. This method uses easily vaporized liquid or solid substances to vaporize and expand, generating high-pressure gas that causes the surrounding medium to expand, explode, and break apart. Liquid oxygen blasting devices are widely used in this field.

[0003] Existing liquid oxygen blasting devices mostly involve placing liquid oxygen, solid combustibles, and detonating components into a sealed pressure-resistant container before ignition and detonation. However, due to the unstable properties of liquid oxygen and its tendency to evaporate in the air, it is inconvenient to first seal and repackage the liquid oxygen before opening it to allow it to saturate flammable materials during the transport of the liquid oxygen blasting device. Furthermore, there is a lack of protective support structures to prevent the device from tipping over and causing cryogenic liquid oxygen leakage that could freeze workers. Therefore, there is an urgent need for a blasting liquid oxygen device for open-air blasting operations to solve the above problems. Utility Model Content

[0004] The technical problem this utility model aims to solve is that current open-pit blasting liquid oxygen devices are inconvenient to seal and package the liquid oxygen during transportation and to immerse it in flammable materials during construction. At the same time, it is inconvenient to set up external support structures to prevent the device from tipping over and causing internal liquid oxygen leakage.

[0005] To achieve the above functions, the technical solution adopted by this utility model is as follows: a blasting liquid oxygen device for open-pit blasting construction, comprising a pressure-resistant cylinder, wherein the pressure-resistant cylinder is provided with a liquid-absorbing paper arranged in a spiral shape, and the pressure-resistant cylinder is provided with a solid combustible material and the solid combustible material fills the spiral gaps of the liquid-absorbing paper, wherein an igniter is inserted into the solid combustible material, and the igniter is connected to a detonator located outside the pressure-resistant cylinder via a wire, wherein a support platform is fixedly connected to the inner wall of the pressure-resistant cylinder and is arranged opposite to it above the liquid-absorbing paper, wherein a liquid oxygen box is mounted on the support platform, wherein a liquid drainage component for opening the liquid oxygen box is fixedly connected to the outer wall of the pressure-resistant cylinder, and a support component for stable support is sleeved on the outer wall of the pressure-resistant cylinder.

[0006] Furthermore, the liquid oxygen box has multiple sets of liquid outlet holes on its top and bottom walls, and these multiple sets of liquid outlet holes are located directly above the upper edge of the absorbent paper. The inner top and inner bottom walls of the liquid oxygen box are both fitted with a sealing film. The outer bottom wall of the liquid oxygen box has oppositely arranged protrusions, and the protrusions abut against the side wall of the support platform.

[0007] Furthermore, the drainage assembly includes vertical plates fixedly connected to the outer wall of the pressure-resistant cylinder, springs fixedly connected to the top edge of the pressure-resistant cylinder and located inside the vertical plates, a top plate fixedly connected to the top of the springs, a support plate fixedly connected between the two sets of top plates, multiple sets of ejector pins fixedly connected to the bottom wall of the support plate, the ejector pins being located above the liquid oxygen box and corresponding to the positions of each set of liquid outlet holes, the ejector pins piercing the sealing film and passing through the liquid oxygen box to discharge liquid oxygen, a support rod fixedly connected to the top wall of the top plate and penetrating the top wall of the vertical plate, a pin inserted through the support rod.

[0008] Furthermore, the support assembly includes a heat insulation layer sleeved in the middle of the outer wall of the pressure-resistant cylinder, and a sleeve fixedly connected to the middle of the outer wall of the heat insulation layer. A connecting rod is rotatably inserted into the sleeve, and an inclined support plate is fixedly connected to both ends of each set of connecting rods.

[0009] Furthermore, the connecting rod is fixed at its end between mutually parallel support plates, and the top edge of the support plate abuts against the outer wall of the support assembly when the support plate is at its maximum tilt angle.

[0010] Preferably, the upper edge of the absorbent paper is higher than the solid burning material, and the absorbent paper, which is spirally rolled up, is evenly distributed with the solid burning material.

[0011] The beneficial effects of this utility model by adopting the above structure are as follows:

[0012] 1. The support rod can be released by pulling out the pin, and pressing the support plate will cause the pin to be inserted into the liquid outlet hole to penetrate the liquid oxygen box. This makes it convenient to release the liquid oxygen sealed in the liquid oxygen box during blasting operations and wet the liquid-absorbing paper below, preventing the liquid oxygen from evaporating into the air during long-term transportation.

[0013] 2. The tilt angle of the support plate can be adjusted by rotating the connecting rod inside the sleeve. After the top of the support plate abuts against the side wall of the support assembly, the vertically placed pressure cylinder can be stably supported, thereby preventing the pressure cylinder from tipping over and causing liquid oxygen leakage that could freeze the human body. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the blasting liquid oxygen device for open-pit blasting proposed in this scheme;

[0015] Figure 2 This is a cross-sectional view of the liquid oxygen blasting device for open-pit blasting proposed in this scheme;

[0016] Figure 3 This is another sectional view of the blasting liquid oxygen device for open-pit blasting proposed in this scheme;

[0017] Figure 4 This is a schematic diagram of the liquid oxygen box proposed in this scheme.

[0018] Among them, 1. Pressure-resistant cylinder; 2. Liquid-absorbing paper; 3. Solid combustible material; 4. Igniter; 5. Detonator; 6. Support platform; 7. Liquid oxygen box; 71. Liquid outlet; 72. Sealing membrane; 73. Protrusion; 8. Drainage assembly; 81. Vertical plate; 82. Spring; 83. Top plate; 84. Support plate; 85. Pin; 86. Support rod; 87. Pin; 9. Support assembly; 91. Insulation layer; 92. Sleeve; 93. Connecting rod; 94. Support plate.

[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1-4 As shown, in order to achieve the above functions, the technical solution adopted by this utility model is as follows: A liquid oxygen blasting device for open-pit blasting construction includes a pressure-resistant cylinder 1. The pressure-resistant cylinder 1 contains a spirally arranged absorbent paper 2. Solid combustible material 3 is filled in the spiral gaps of the absorbent paper 2. The upper edge of the absorbent paper 2 is higher than the solid combustible material 3 to facilitate the collection and absorption of leaked liquid oxygen. The spirally rolled absorbent paper 2 and the solid combustible material 3 are evenly distributed at intervals. The absorbent paper 2 evenly distributes the absorbed liquid oxygen within the solid combustible material 3 so that the solid combustible material 3 can burn fully during subsequent ignition. An igniter 4 is inserted into the solid combustible material 3, and the igniter 4 is connected to a detonator 5 located outside the pressure-resistant cylinder 1 via a wire. The detonator 5 can control the igniter 4 to open. The igniter 4 ignites, causing the absorbent paper 2 and the solid combustible material 3, which are soaked in liquid oxygen, to burn and release gas, thereby causing the device to expand and explode. A support platform 6, located above the absorbent paper 2 and arranged opposite to it, is fixed to the inner wall of the pressure-resistant cylinder 1.

[0022] like Figure 2 , 4As shown, a liquid oxygen box 7 is mounted on the support platform 6. The top and bottom walls of the liquid oxygen box 7 are provided with multiple sets of liquid outlet holes 71, which are located directly above the upper edge of the absorbent paper 2. The inner top and inner bottom walls of the liquid oxygen box 7 are both fitted with a sealing film 72. The sealing film 72 seals each set of liquid outlet holes 71, so that the liquid oxygen can be stored in the liquid oxygen box 7 in a sealed manner during the transfer of this device. The outer bottom wall of the liquid oxygen box 7 is fixed with oppositely arranged protrusions 73, and the protrusions 73 abut against the side wall of the support platform 6, so as to facilitate the stable mounting of the liquid oxygen box 7 on the support platform 6.

[0023] like Figure 1 , 2 As shown in Figure 4, a drainage assembly 8 for opening the liquid oxygen box 7 is fixedly connected to the outer wall of the pressure-resistant cylinder 1. The drainage assembly 8 includes a vertical plate 81 fixedly connected to the outer wall of the pressure-resistant cylinder 1, and springs 82 fixedly connected to the top edge of the pressure-resistant cylinder 1. The springs 82 are located inside the vertical plate 81, and a top plate 83 is fixedly connected to the top of the springs 82. When the springs 82 contract, they cause the top plate 83 to descend. A support plate 84 is fixedly connected between the two sets of top plates 83, and the support plate 84 also descends accordingly. Multiple sets of ejector pins 85 are fixedly connected to the bottom wall of the support plate 84, and the ejector pins 85 are located above the liquid oxygen box 7 and correspond to the positions of each set of liquid outlet holes 71. After each set of ejector pins 85 descends, it can... The sealing films 72 on the top and bottom walls of the liquid oxygen box 7 are punctured in sequence to penetrate the liquid outlet 71. Then, the spring 82 is released to make it rebound, thereby driving the ejector pin 85 to rise away from the liquid outlet 71. The liquid oxygen in the liquid oxygen box 7 then leaks out from the various sets of liquid outlets 71 on the bottom wall of the liquid oxygen box 7. The top wall of the top plate 83 is fixedly connected to a support rod 86 that penetrates the top wall of the vertical plate 81. A pin 87 is inserted through the support rod 86. Inserting the pin 87 into the support rod 86 can position the support plate 84 to prevent the ejector pin 85 from moving and puncturing the sealing film 72 during transportation. Pulling the pin 87 out of the support rod 86 can release the support plate 84 to facilitate subsequent lifting and lowering.

[0024] like Figure 1 , 3 As shown, a support assembly 9 is fitted onto the outer wall of the pressure cylinder 1 to provide stable support. The support assembly 9 includes a thermal insulation layer 91 fitted onto the middle of the outer wall of the pressure cylinder 1. Workers can touch the thermal insulation layer 91 to prevent being frozen by the low-temperature liquid oxygen inside the pressure cylinder 1. A sleeve 92 is fixedly connected to the middle of the outer wall of the thermal insulation layer 91. A connecting rod 93 is rotatably inserted into the sleeve 92. Rotating the connecting rod 93 within the sleeve 92 causes the lower end of the support plate 94 to move away from the pressure cylinder 1. The connecting rod 93 is fixed between the parallel support plates 94 through its end. When the support plate 94 moves to form the maximum tilt angle with the pressure cylinder 1, the top edge of the support plate 94 can abut against the outer wall of the support assembly 9, thereby providing stable support for the vertically placed pressure cylinder 1 and preventing the internal liquid oxygen from leaking out due to tilting.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0027] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A blasting liquid oxygen device for open-pit blasting operations, comprising a pressure-resistant cylinder (1), characterized in that: The pressure-resistant cylinder (1) is provided with a spirally arranged absorbent paper (2). The pressure-resistant cylinder (1) is provided with a solid combustible material (3) and the solid combustible material (3) fills the spiral gap of the absorbent paper (2). An igniter (4) is inserted into the solid combustible material (3) and the igniter (4) is connected to an initiator (5) located outside the pressure-resistant cylinder (1) through a wire. A support platform (6) is fixedly attached to the inner wall of the pressure-resistant cylinder (1) and is located above the absorbent paper (2). A liquid oxygen box (7) is placed on the support platform (6). A drain assembly (8) for opening the liquid oxygen box (7) is fixedly attached to the outer wall of the pressure-resistant cylinder (1). A support assembly (9) for stable support is sleeved on the outer wall of the pressure-resistant cylinder (1).

2. The blasting liquid oxygen device for open-pit blasting construction according to claim 1, characterized in that: The liquid oxygen box (7) has multiple sets of liquid outlet holes (71) on its top and bottom walls, and the multiple sets of liquid outlet holes (71) are located directly above the upper edge of the absorbent paper (2). The inner top and inner bottom walls of the liquid oxygen box (7) are fitted and fixed with a sealing film (72). The outer bottom wall of the liquid oxygen box (7) has oppositely arranged protrusions (73), and the protrusions (73) abut against the side wall of the support platform (6).

3. The blasting liquid oxygen device for open-pit blasting construction according to claim 2, characterized in that: The drainage assembly (8) includes a vertical plate (81) fixedly connected to the outer wall of the pressure-resistant cylinder (1), a spring (82) fixedly connected to the top edge of the pressure-resistant cylinder (1) and located inside the vertical plate (81), a top plate (83) fixedly connected to the top of the spring (82), a support plate (84) fixedly connected between the two sets of top plates (83), a plurality of pins (85) fixedly connected to the bottom wall of the support plate (84), and the pins (85) located above the liquid oxygen box (7) and corresponding to the positions of each set of liquid outlet holes (71). The pins (85) puncture the sealing film (72) and pass through the liquid oxygen box (7) to discharge liquid oxygen. A support rod (86) is fixedly connected to the top wall of the top plate (83) and passes through the top wall of the vertical plate (81). A pin (87) is inserted into the support rod (86) to pass through it.

4. The blasting liquid oxygen device for open-pit blasting construction according to claim 1, characterized in that: The support assembly (9) includes a heat insulation layer (91) sleeved in the middle of the outer wall of the pressure-resistant cylinder (1), and a sleeve (92) fixed in the middle of the outer wall of the heat insulation layer (91) and a connecting rod (93) rotatably inserted in the sleeve (92). Each set of connecting rods (93) has an inclined support plate (94) fixed at both ends.

5. The blasting liquid oxygen device for open-pit blasting construction according to claim 4, characterized in that: The connecting rod (93) is fixed at its end between parallel support plates (94), the top edge of which abuts against the outer wall of the support assembly (9) when the support plate (94) is at its maximum tilt angle.

6. The blasting liquid oxygen device for open-pit blasting construction according to claim 1, characterized in that: The upper edge of the absorbent paper (2) is higher than the solid combustible material (3), and the absorbent paper (2) and the solid combustible material (3) are evenly distributed in a spiral shape.

Images