Directional charging device for porous granular ammonium nitrate fuel oil explosive suitable for fractured rock mass

Abstract

The utility model discloses a porous granular ammonium oil explosive directional charging device suitable for fissure rock mass, including the spout, the upper portion swing of spout is equipped with the wind baffle, and the wind baffle penetrates spout, and the inside movement of spout is equipped with the piston, and one end of piston is fixedly connected with the spring, and one end of spring is fixedly connected with spout, and the front portion threaded mounting of spout has the charging pipe. The side portion of wind baffle is equipped with the return spring, and one end of return spring is fixedly connected with spout, and the piston is blown with gas, and the piston is blocked in spout with piston, and gas leakage is reduced, and when piston passes the downside of wind baffle, the wind baffle is shielded spout upside opening with the upward action of gas to the wind baffle, and the piston is continued to blow with the air current, and the piston is pushed forward to pill, and pill is sent to the front side of charging pipe, realizes the accurate charging of driving a small amount of gas, and energy -conserving and easily replaceable wearing parts are easy to change, and the practicality is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of porous granular ammonium nitrate explosive loading equipment, and particularly relates to a porous granular ammonium nitrate explosive directional loading device suitable for fractured rock masses. Background Technology

[0002] The porous granular ammonium nitrate explosive directional charging device for fractured rock masses is a special device designed specifically for blasting operations in rock masses with complex fractures. Through a special tubular structure and precise control valves, it can stably and uniformly deliver porous granular ammonium nitrate explosives to designated locations in rock fractures according to a preset direction and charge amount, using high-pressure gas or mechanical pushing. At the same time, the equipped positioning and guiding system can ensure the accuracy of the charging direction, which not only improves the effective utilization rate of explosive energy, but also reduces the disturbance of rock masses in non-target areas during blasting, ensuring the safety of engineering blasting and the effect of directional blasting.

[0003] Gas-delivered pellets have a relatively simple structure, but they are ejected at a relatively high speed, making it relatively difficult to position the pellets. Conventional mechanical pellet delivery systems offer relatively precise positioning, but their structure is relatively complex, and replacing worn parts is difficult. This results in the relatively low practicality of conventional porous granular ammonium nitrate explosive directional loading devices.

[0004] To address these issues, we propose a porous granular ammonium nitrate explosive directional charging device suitable for fractured rock masses. Utility Model Content

[0005] The purpose of this invention is to address the problem of low practicality of conventional porous granular ammonium nitrate explosive directional charging devices, and to propose a porous granular ammonium nitrate explosive directional charging device suitable for fractured rock masses.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A porous granular ammonium nitrate explosive (AMO) directional charging device suitable for fractured rock masses includes a spray cylinder. A baffle plate is oscillatingly mounted on the upper part of the spray cylinder, penetrating through it. A piston is movable inside the spray cylinder, with a spring fixedly connected to one end. The spring's end is also fixedly connected to the spray cylinder. A charging tube is threaded onto the front of the spray cylinder. The explosive pellet is pushed through the baffle plate and inserted into the spray cylinder. An external air pump blows gas into the spray cylinder, propelling the piston. The piston blocks gas leakage within the spray cylinder. After the piston passes the lower side of the baffle plate, the gas acts upwards on the baffle plate, blocking the upper opening of the spray cylinder. The airflow continues to propel the piston forward, pushing the explosive pellet to the front of the charging tube. This achieves precise charging with a small amount of gas, is energy-efficient, and allows for easy replacement of worn parts, improving practicality.

[0007] Preferably, a return spring is installed on the side of the wind deflector. One end of the return spring is fixedly connected to the spray nozzle, and the other end is fixedly connected to the wind deflector. The return spring provides a restoring force to the wind deflector, ensuring that the wind deflector remains sealed at all times.

[0008] Preferably, the spray nozzle includes a cylinder body, and a feeding hopper is fixedly connected to the upper end of the cylinder body. The internal spaces of the cylinder body and the feeding hopper are interconnected. The feeding hopper facilitates the guidance of the pills into the cylinder body.

[0009] Preferably, the spray nozzle further includes a connecting nozzle, which is fixedly connected to the nozzle body. The connecting nozzle facilitates connection between the spray nozzle and the external air pump pipeline.

[0010] Preferably, the charging tube includes a tube body, one end of which is fixedly connected to a threaded nozzle, which is threadedly installed inside the cylinder. When the charging tube becomes excessively worn, the threaded nozzle can be unscrewed from the cylinder and a new charging tube can be installed, facilitating the replacement of easily worn parts.

[0011] Preferably, the baffle plate includes a plate body, with a rotating shaft fixedly connected to one side of the plate body. The rotating shaft rotatably passes through the feeding hopper. A return spring is sleeved on the rotating shaft, with one end of the return spring fixedly connected to the rotating shaft and the other end fixedly connected to the feeding hopper. The plate body is movably embedded within the feeding hopper. The return spring's elastic force acts on the rotating shaft, which in turn acts on the plate body, facilitating the plate body to remain in a closed state.

[0012] Preferably, the piston includes a plug body with an exhaust groove, and the rear part of the plug body is fixedly connected to a spring. When the head of the plug body protrudes outside the loading tube, gas is discharged through the exhaust groove, causing pressure leakage and preventing the piston from being completely expelled from the loading tube.

[0013] In summary, the technical effects and advantages of this utility model are as follows: 1. Press the pill open the wind deflector and insert it into the spray nozzle. Use an external air pump to blow gas into the spray nozzle. Use the gas to propel the piston. Use the piston to block the gas leakage inside the spray nozzle. After the piston passes the lower side of the wind deflector, use the gas to act upward on the wind deflector, so that the wind deflector blocks the upper opening of the spray nozzle. Use the airflow to continue to blow the piston, so that the piston pushes the pill forward and delivers the pill to the front of the loading tube. This achieves precise loading of a small amount of gas, which is energy-saving and easy to replace vulnerable parts, thus improving practicality.

[0014] 2. When the charging tube is excessively worn, unscrew the threaded nozzle from the cylinder and replace it with a new charging tube to facilitate the replacement of vulnerable parts.

[0015] 3. When the head of the plug protrudes outside the charging tube, the gas is discharged through the vent groove to release the pressure and prevent the piston from being completely discharged outside the charging tube. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall segmented structure of this utility model; Figure 2 This is a schematic diagram of the spray nozzle structure of this utility model; Figure 3 This is a schematic diagram of the charge tube structure of this utility model; Figure 4 This is a schematic diagram of the windbreak structure of this utility model; Figure 5 This is a schematic diagram of the piston structure of this utility model.

[0017] In the diagram: 1. Spring; 2. Spray nozzle; 3. Drug loading tube; 4. Baffle plate; 5. Piston; 6. Return spring; 21. Cylinder; 22. Feed hopper; 23. Connecting nozzle; 31. Pipe body; 32. Threaded nozzle; 41. Plate body; 42. Shaft; 51. Plug body; 52. Exhaust groove. Detailed Implementation

[0018] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments.

[0019] like Figure 1 As shown, a porous granular ammonium nitrate explosive directional charging device suitable for fractured rock masses includes a spray cylinder 2. A wind deflector 4 is oscillatingly mounted on the upper part of the spray cylinder 2, penetrating through the spray cylinder 2. A piston 5 is movable inside the spray cylinder 2, with a spring 1 fixedly connected to one end of the piston 5. One end of the spring 1 is fixedly connected to the spray cylinder 2. A charging tube 3 is threadedly installed on the front part of the spray cylinder 2. The rear part of the spray cylinder 2 is connected to an external air pump pipeline.

[0020] like Figure 1 As shown, a return spring 6 is installed on the side of the wind deflector 4. One end of the return spring 6 is fixedly connected to the spray nozzle 2, and the other end of the return spring 6 is fixedly connected to the wind deflector 4. The return spring 6 provides a return force to the wind deflector 4, ensuring that the wind deflector 4 remains sealed at all times.

[0021] like Figure 1 and 2 As shown, the spray nozzle 2 includes a cylinder 21, and a feeding hopper 22 is fixedly connected to the upper end of the cylinder 21. The internal spaces of the cylinder 21 and the feeding hopper 22 are connected. The pills are placed into the feeding hopper 22 and then fed into the cylinder 21 through the feeding hopper 22.

[0022] like Figure 1 and 2As shown, the spray nozzle 2 also includes a docking nozzle 23, which is fixedly connected to the nozzle body 21. The docking nozzle 23 is used to connect to the external air pump pipeline.

[0023] like Figure 1 and 3 As shown, the charging tube 3 includes a tube body 31, one end of which is fixedly connected to a threaded nozzle 32, which is threadedly installed inside the cylinder 21. When the charging tube 3 is excessively worn, the threaded nozzle 32 is unscrewed from the cylinder 21 and a new charging tube 3 is installed.

[0024] like Figure 1 , 2 As shown in Figure 4, the wind deflector 4 includes a plate body 41. A rotating shaft 42 is fixedly connected to the side end of the plate body 41. The rotating shaft 42 rotates through the feeding hopper 22. A return spring 6 is sleeved on the rotating shaft 42. One end of the return spring 6 is fixedly connected to the rotating shaft 42, and the other end of the return spring 6 is fixedly connected to the feeding hopper 22. The plate body 41 is movably embedded in the feeding hopper 22. The elastic force of the return spring 6 acts on the rotating shaft 42, which in turn acts on the plate body 41, keeping the plate body 41 in a closed state.

[0025] like Figure 1 and 5 As shown, the piston 5 includes a plug body 51, on which an exhaust groove 52 is provided. The rear part of the plug body 51 is fixedly connected to the spring 1. When the head of the plug body 51 protrudes outside the drug delivery tube 3, the gas is discharged through the exhaust groove 52, causing the gas pressure to leak and preventing the piston 5 from being completely discharged outside the drug delivery tube 3.

[0026] Working principle: The pill is pressed open by the baffle plate 4 and inserted into the spray nozzle 2. Gas is blown into the spray nozzle 2 by an external air pump. The gas propels the piston 5, which is blocked inside the spray nozzle 2 to reduce gas leakage. After the piston 5 passes the lower side of the baffle plate 4, the gas acts upward on the baffle plate 4, which blocks the upper opening of the spray nozzle 2. The airflow continues to blow the piston 5, which pushes the pill forward and delivers it to the front of the loading tube 3, thus achieving precise loading of a small amount of gas.

[0027] The above description is only a preferred embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed by the utility model, based on the technical solution and the utility model concept, should be included within the protection scope of the utility model.

[0028] The description briefly mentions the application direction of the utility model in relation to existing technologies known to those skilled in the art without modification, and combines them with the utility model to form a complete technology; it avoids excessive popularization of technologies known to those skilled in the art, in order to help those skilled in the art quickly understand the main content of the utility model.

Claims

1. A directional charging device for porous granular ammonium nitrate explosives suitable for fractured rock masses, characterized in that: The device includes a spray nozzle (2), a wind deflector (4) is mounted on the upper part of the spray nozzle (2), the wind deflector (4) passes through the spray nozzle (2), a piston (5) is provided inside the spray nozzle (2), a spring (1) is fixedly connected to one end of the piston (5), one end of the spring (1) is fixedly connected to the spray nozzle (2), and a loading tube (3) is threaded on the front of the spray nozzle (2).

2. The porous granular ammonium nitrate explosive directional charging device suitable for fractured rock masses according to claim 1, characterized in that: A return spring (6) is installed on the side of the wind deflector (4). One end of the return spring (6) is fixedly connected to the spray nozzle (2), and the other end of the return spring (6) is fixedly connected to the wind deflector (4).

3. The porous granular ammonium nitrate explosive directional charging device suitable for fractured rock masses according to claim 2, characterized in that: The spray nozzle (2) includes a cylinder (21), and a feeding hopper (22) is fixedly connected to the upper end of the cylinder (21). The internal spaces of the cylinder (21) and the feeding hopper (22) are connected.

4. The porous granular ammonium nitrate explosive directional charging device suitable for fractured rock masses according to claim 3, characterized in that: The spray nozzle (2) also includes a docking nozzle (23), which is fixedly connected to the cylinder body (21).

5. The porous granular ammonium nitrate explosive directional charging device suitable for fractured rock masses according to claim 3, characterized in that: The loading tube (3) includes a tube body (31), one end of which is fixedly connected to a threaded nozzle (32), which is threadedly installed inside the cylinder (21).

6. The porous granular ammonium nitrate explosive directional charging device suitable for fractured rock masses according to claim 3, characterized in that: The wind deflector (4) includes a plate body (41), and a rotating shaft (42) is fixedly connected to the side end of the plate body (41). The rotating shaft (42) rotates through the feeding hopper (22). The reset spring (6) is sleeved on the rotating shaft (42). One end of the reset spring (6) is fixedly connected to the rotating shaft (42), and the other end of the reset spring (6) is fixedly connected to the feeding hopper (22). The plate body (41) is movably embedded in the feeding hopper (22).

7. The porous granular ammonium nitrate explosive directional charging device suitable for fractured rock masses according to claim 1, characterized in that: The piston (5) includes a plug body (51), on which an exhaust groove (52) is provided, and the rear part of the plug body (51) is fixedly connected to the spring (1).

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