A mining blast hole charging device

Abstract

The utility model provides a kind of mining blasting blasthole charging device, including charging barrel, the one end of charging barrel forms medicine outlet, and the other end is fixed with end plate, and screw rod is equipped in charging barrel along the length direction of charging barrel, screw hole is equipped on the end plate, screw rod passes from screw hole, the inner end of screw rod is equipped with push medicine plate, the lateral wall of charging barrel is connected with charging pipe, and sealing plug is equipped on the charging pipe.The utility model sets up screw rod in charging barrel, moves push medicine plate by screw rod, and then adds explosive in blasthole in charging barrel, adopts screw rod to drive push medicine plate to move, and push medicine plate moves slowly and stably, and uniformly applies external force to explosive, and the extrusion effect is good;Simple structure, convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of blasting equipment technology and relates to a mining blasting borehole charging device. Background Technology

[0002] Blasting operations are required in mining. Blasting involves drilling holes at appropriate locations in the mine, then using a charging device to load explosives into the drilled holes for detonation. Currently, the existing blast hole charging structures used in mining blasting cannot effectively compress the explosives during use, affecting the blasting effect. It is often difficult to control the force during compression, which also affects the compression effect. Utility Model Content

[0003] The purpose of this invention is to address the problem of poor explosive compression effect in existing explosive dosing devices during the dosing process, and to provide a mining blasting borehole charging device.

[0004] Therefore, the present invention adopts the following technical solution: A charging device for blasting holes in mining includes a charging cylinder, one end of which forms a discharge port and the other end is fixed with an end plate. A screw is provided inside the charging cylinder along its length. A screw hole is provided on the end plate, through which the screw passes. A pusher plate is provided at the inner end of the screw. A charging pipe is connected to the side wall of the charging cylinder, and a plug is provided on the charging pipe.

[0005] Furthermore, a connecting rod is fixed to the inner end of the screw, and a through hole is provided on the pusher plate. The connecting rod passes through the through hole, and a first limiting plate and a second limiting plate are fixed on the connecting rod. The pusher plate is located between the first limiting plate and the second limiting plate.

[0006] Furthermore, the inner wall of the dosing cylinder is provided with a guide groove along the length of the dosing cylinder, and a guide block is fixed at the edge of the push plate. The guide block is located in the guide groove and can move back and forth in the guide groove along the length of the guide groove.

[0007] Furthermore, the outer end of the screw is provided with a crank handle for rotating the screw.

[0008] Furthermore, the dosing cartridge has a handle on its side wall.

[0009] Furthermore, a retaining plate is fitted near the dosing outlet of the dosing cylinder and is perpendicular to the dosing cylinder.

[0010] The beneficial effects of this utility model are as follows: a screw is installed inside the charging cylinder, which drives the pusher plate to move, thereby adding the explosive in the charging cylinder into the borehole. The pusher plate 6 moves slowly and steadily, applying external force to the explosive evenly and achieving a good compression effect. The structure is simple and the method of use is convenient. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Sectional view along the middle AA direction; Figure 3 for Figure 1 Enlarged view of part B in the middle; In the diagram, 1-dosing cylinder, 2-dosing outlet, 3-end plate, 4-screw, 5-screw hole, 6-dosing pusher plate, 7-connecting rod, 8-through hole, 9-first limiting plate, 10-second limiting plate, 11-guide groove, 12-guide block, 13-dosing tube, 14-sealant, 15-crank handle, 16-handle, 17-locking plate. Detailed Implementation

[0012] The present invention will now be described in detail with reference to the accompanying drawings: like Figure 1-3As shown, a mining blasting borehole charging device includes a charging cylinder 1. One end of the charging cylinder 1 forms a discharge port 2, and the other end is fixed with an end plate 3. Explosives can be discharged from the charging cylinder 1 through the discharge port 2 and then added into the borehole. A screw 4 is provided inside the charging cylinder 1 along its length. Specifically, the screw 4 is located at the axis of the charging cylinder 1. A screw hole 5 is provided on the end plate 2, through which the screw 4 passes. By rotating the screw 4 within the screw hole 5, the screw 4 moves back and forth along the axial direction of the charging cylinder 1. A pusher plate 6 is provided at the inner end of the screw 4. The diameter of the pusher plate 6 is the same as the inner diameter of the charging cylinder 1, and the pusher plate 6 is perpendicular to the charging cylinder 1. The screw 4 can drive the pusher plate 6 to move back and forth along the length of the charging cylinder 1 within the charging cylinder 1. The pusher plate 6 moves back and forth, pushing the explosive in the charging cylinder 1 from the outlet 2 into the borehole. The pusher plate 6 also compresses the explosive, reducing its volume within the borehole. Because the pusher plate 6 moves slowly and applies uniform force, the compression effect is good. Specifically, a connecting rod 7 is fixed to the inner end of the screw 4, coaxially with it. The pusher plate 6 has a through hole 8 located at its center. The connecting rod 7 passes through the through hole 8, and a first limiting plate 9 and a second limiting plate 10 are fixed to the connecting rod 7. The pusher plate 6 is located... Between the first limiting plate 9 and the second limiting plate 10, the first limiting plate 9 and the second limiting plate 10 can make the push plate 6 move more smoothly during the movement. The inner wall of the dosing cylinder 1 is provided with a guide groove 11 along the length direction of the dosing cylinder 1. A guide block 12 is fixed at the edge of the push plate 6. The guide block 12 is located in the guide groove 11 and can move back and forth in the guide groove 11 along the length direction of the guide groove 11. The setting of the guide block 12 can prevent the push plate 6 from rotating with the screw 4 under the action of friction when the screw 4 rotates. In addition, the length of the screw 4 is less than the length of the dosing cylinder 1, which can prevent During use, the push plate 6 extends from the outlet 2 of the charging cylinder 1. The side wall of the charging cylinder 1 is connected to a charging tube 13 for adding explosives into the charging cylinder 1. The charging tube 13 is provided with a plug 14, which can be threaded onto the charging tube 13. To facilitate use, the outer end of the screw 4 is provided with a crank 15 for rotating the screw 4. The side wall of the charging cylinder 1 is also provided with a handle 16, which is convenient for the operator to hold during charging. A retaining plate 17 is fitted on the charging cylinder 1 near the outlet 2. The retaining plate 17 is set perpendicular to the charging cylinder 1.

[0013] The method of using this utility model is as follows: When it is necessary to add explosives into the borehole, the operator first rotates the screw 4 by cranking the handle 15, causing the pusher plate 6 to move towards the end plate 3 on the side of the charging cylinder 1. Then, the explosives are added into the charging cylinder 1 through the charging pipe 13. After the explosives are added, the plug 14 is installed on the charging pipe 13. Then, the operator can insert one end of the outlet 2 of the charging cylinder 1 into the borehole and make the locking plate 17 abut against the rock wall near the borehole. At this time, the operator can hold the handle 16 and rotate the screw 4 by cranking the handle 15 to move the pusher plate 6 towards the outlet 2, pushing the explosives in the charging cylinder 1 into the borehole through the outlet 2. After the explosives are pushed into the borehole, the pusher plate 6 can continue to be moved slowly to squeeze and compress the explosives to a suitable volume, improving the blasting effect. Because the screw 4 drives the pusher plate 6 to move, the pusher plate 6 moves slowly and steadily, applying external force to the explosives evenly and with good compression effect.

Claims

1. A device for charging explosive charges in mining blasting boreholes, characterized in that, The device includes a dosing cylinder (1), one end of which forms a drug outlet (2) and the other end is fixed with an end plate (3). A screw (4) is provided inside the dosing cylinder (1) along the length direction of the dosing cylinder (1). A screw hole (5) is provided on the end plate (3). The screw (4) passes through the screw hole (5). A pusher plate (6) is provided at the inner end of the screw (4). A dosing tube (13) is connected to the side wall of the dosing cylinder (1). A plug (14) is provided on the dosing tube (13).

2. The mining blasting borehole charging device according to claim 1, characterized in that, The inner end of the screw (4) is fixed with a connecting rod (7), the pusher plate (6) is provided with a through hole (8), the connecting rod (7) passes through the through hole (8), the connecting rod (7) is fixed with a first limiting plate (9) and a second limiting plate (10), and the pusher plate (6) is located between the first limiting plate (9) and the second limiting plate (10).

3. The mining blasting borehole charging device according to claim 1, characterized in that, The inner wall of the dosing cylinder (1) is provided with a guide groove (11) along the length of the dosing cylinder (1), and a guide block (12) is fixed at the edge of the push plate (6). The guide block (12) is located in the guide groove (11) and can move back and forth in the guide groove (11) along the length of the guide groove (11).

4. A mining blasting borehole charging device according to claim 1, characterized in that, The outer end of the screw (4) is provided with a crank (15) for rotating the screw (4).

5. A mining blasting borehole charging device according to claim 1, characterized in that, The dosing cartridge (1) is provided with a handle (16) on its side wall.

6. A mining blasting borehole charging device according to claim 1, characterized in that, The dosing cylinder (1) is fitted with a retaining plate (17) that is perpendicular to the dosing cylinder (1) near the dosing outlet (2).

Images