Automatic underground emulsion explosive charging machine

Abstract

The invention relates to an underground automatic emulsion explosive charging machine which comprises a storage hopper mounted on a transfer device, a piston type positive displacement pump is arranged at the bottom of the storage hopper, and the bottom end of the storage hopper is communicated with the feeding end of the piston type positive displacement pump. When the whole equipment is moved to the position of a shot hole formed in a mine in advance, firstly, one end, connected with the end cover, of the explosive tube is upwards inserted into a proper position in the shot hole formed in the top wall of the mine; a user connects the explosive injection nozzle installed at the free end of the material conveying hose with the connector, opens the electromagnetic valve and starts the piston type positive displacement pump at the same time, and cooperates with the material conveying hose to extrude the emulsion explosive into the explosive tube, and due to the fact that the explosive tube with the light mass is firstly placed into a shot hole and then emulsion explosive filling is conducted in the explosive filling process, filling is convenient, and the explosive filling efficiency is improved. And the emulsion explosive loading efficiency can be greatly improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of emulsion explosive charging equipment, and particularly relates to an underground automatic emulsion explosive charging machine. Background Art

[0002] Emulsion explosive is a kind of water-in-oil emulsion explosive formed by evenly dispersing micro-droplets of oxidizer salt aqueous solution in an oil-phase continuous medium containing porous substances such as dispersed air bubbles or hollow glass microspheres with the help of an emulsifier. It is a new type of industrial explosive developed in the 1970s.

[0003] When blasting in a mine in the existing way, it is generally necessary to fill the emulsion explosive into the explosive tube on the ground and then transport it into the well. When it is necessary to fill the explosive in the explosive tube into the blast hole opened on the top wall of the mine, due to the heavy weight of the explosive tube filled with emulsion explosive and the narrow space inside the mine, it is inconvenient for the staff to operate. Summary of the Invention

[0004] The purpose of the present invention is to provide a simple-structured and reasonably designed underground automatic emulsion explosive charging machine to solve the above problems.

[0005] The present invention achieves the above purpose through the following technical solutions: An underground automatic emulsion explosive charging machine includes a storage hopper installed on a transfer device. A piston-type positive-displacement pump is arranged at the bottom of the storage hopper. The bottom end of the storage hopper is communicated with the feed end of the piston-type positive-displacement pump. A solenoid valve is installed at the connection between the storage hopper and the piston-type positive-displacement pump. A squeezing pipe is fixedly installed at the discharge end of the piston-type positive-displacement pump. A feeding hose is fixedly connected to the end of the squeezing pipe far away from the piston-type positive-displacement pump. A group of side plates are fixedly connected to the transfer device on both sides of the storage hopper. A gap is formed between the side plates and the outer wall of the storage hopper, and a plurality of explosive tubes are clamped in this gap.

[0006] As a further optimized scheme of the present invention, the transfer device includes a bottom plate arranged below the squeezing pipe. The bottom of the piston-type positive-displacement pump is fixed to the upper surface of the bottom plate. Rollers are installed on the bottom walls at both ends of the bottom plate.

[0007] As a further optimized scheme of the present invention, two symmetrically arranged handrails are fixedly connected to the upper surface of one end of the bottom plate. A push rod is fixedly connected between the ends of the two handrails far away from the bottom plate, and an anti-slip pattern is provided in the middle section of the push rod.

[0008] As a further optimized scheme of the present invention, a support frame is fixedly connected to the upper surface of the bottom plate on the side of the storage hopper away from the handrail, and a diesel generator is detachably connected above the support frame.

[0009] As a further optimized solution of the present invention, the side plate has a plate-like structure, and the side plate is made of an elastic material. The distance between the top end of the side plate and the outer wall of the storage hopper is smaller than the diameter of the explosive tube.

[0010] As a further optimized solution of the present invention, the inside of the explosive tube is hollow. One end of the explosive tube is fixedly connected with an end cap, and a plurality of exhaust holes communicating with the inside of the explosive tube are opened on the end cap.

[0011] As a further optimized solution of the present invention, a joint is integrally formed at one end of the explosive tube away from the end cap. A one-way valve is installed at the connection between the joint and the explosive tube. A medicine injection nozzle cooperating with the joint is fixedly connected to the free end of the feeding hose.

[0012] As a further optimized solution of the present invention, a plurality of mounting holes are annularly opened on the side wall of the explosive tube near the joint end. A clamping plate in the shape of a triangular plate is arranged in each mounting hole. One end of the clamping plate close to the joint is rotatably connected to the side wall of the mounting hole.

[0013] The beneficial effects of the present invention are as follows: 1. After moving the whole device to the position of the blast hole pre-dug in the mine, first insert the end of the explosive tube connected to the end cap upward into the appropriate position of the blast hole opened in the mine roof. Then the user connects the medicine injection nozzle installed at the free end of the feeding hose to the joint, and at the same time opens the solenoid valve and starts the piston-type positive-displacement pump to squeeze the emulsion explosive into the explosive tube through the feeding hose. Since the lighter explosive tube is first placed in the blast hole and then the emulsion explosive is filled during the charging process, it is not only convenient to load but also can greatly improve the charging efficiency of the emulsion explosive.

[0014] 2. After the emulsion explosive is filled into the explosive tube, the clamping plate rotatably connected in the mounting hole will rotate outwards under the extrusion of the filled emulsion explosive on the side inside the explosive tube, so as to be clamped on the inner wall of the blast hole, making the connection between the explosive tube and the inner wall of the blast hole more stable and minimizing the problem that the explosive tube may slip out of the blast hole due to excessive gravity after being filled with the emulsion explosive. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural diagram of one side of the whole of the present invention; Figure 2 is the present invention Figure 1 sectional structural schematic diagram; Figure 3 is a three-dimensional structural schematic diagram of the explosive tube of the present invention; Figure 4 is the present invention Figure 3 sectional structural schematic diagram.

[0016] In the figure: 1, bottom plate; 2, roller; 3, handrail; 4, storage hopper; 5, piston displacement pump; 6, extrusion pipe; 7, solenoid valve; 8, feeding hose; 9, medicine injection nozzle; 10, support frame; 11, diesel generator; 12, side plate; 13, explosive pipe; 14, end cover; 15, exhaust hole; 16, joint; 17, check valve; 18, mounting hole; 19, clamping plate. Detailed implementation mode

[0017] The present application will be further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation modes are only used to further illustrate the present application and cannot be understood as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0018] Example: As Figure 1 - Figure 4 shown, an underground automatic emulsion explosive charging machine includes a storage hopper 4 installed on a transfer device, and the storage hopper 4 is used to store emulsion explosive; A piston displacement pump 5 is arranged at the bottom of the storage hopper 4. The transfer device includes a bottom plate 1 arranged below the piston displacement pump 5. The bottom of the piston displacement pump 5 is fixedly connected to the upper surface of the bottom plate 1. Rollers 2 are installed on the bottom walls at both ends of the bottom plate 1 for stably supporting the piston displacement pump 5 and the storage hopper 4 through the bottom plate 1 and the rollers 2; Two symmetrically arranged handrails 3 are fixedly connected to the upper surface of one end of the bottom plate 1. A push rod is fixedly connected between the ends of the two handrails 3 far away from the bottom plate 1. An anti-slip pattern is provided in the middle section of the push rod. When the user needs to move the whole device, the user can push the push rod and apply an external force to the bottom plate 1 in cooperation with the handrails 3 at both ends of the push rod, so as to drive the rollers 2 installed at both ends of the bottom of the bottom plate 1 to move along the mine roadway of the underground mine and move the whole device to a suitable position; The bottom end of the storage hopper 4 is communicated with the feeding end of the piston displacement pump 5. A solenoid valve 7 is installed at the connection between the storage hopper 4 and the piston displacement pump 5. An extrusion pipe 6 is fixedly installed at the discharging end of the piston displacement pump 5. A feeding hose 8 is fixedly connected to the end of the extrusion pipe 6 far away from the piston displacement pump 5. Since the emulsion explosive has fluidity, when the solenoid valve 7 is opened, the emulsion explosive will enter the piston displacement pump 5 along the bottom of the storage hopper 4 under the action of gravity. When the piston displacement pump 5 is started, the emulsion explosive can be pumped into the feeding hose 8 through the piston displacement pump 5; A support frame 10 is fixedly connected to the upper surface of the bottom plate 1 on the side of the storage hopper 4 away from the handrail 3. A diesel generator 11 is detachably connected above the support frame 10. Installing the diesel generator 11 on the support frame 10 is used to supply power to the piston displacement pump 5, eliminating the need to connect external cables and making it more convenient for users to use; A set of side plates 12 are fixedly connected to the transfer device on both sides of the storage hopper 4. The side plates 12 are plate-shaped and made of elastic material. A gap is formed between the side plates 12 and the outer wall of the storage hopper 4. Multiple explosive tubes 13 are clamped in the gap. The distance between the top of the side plate 12 and the outer wall of the storage hopper 4 is smaller than the diameter of the explosive tube 13. The explosive tube 13 can be clamped by the side plates 12 to minimize the problem of the explosive tube 13 falling due to bumps and vibrations during the transfer process. The explosive tube 13 is hollow and is used to accommodate emulsion explosives during blasting operations. One end of the explosive tube 13 is fixedly connected to an end cap 14. The end cap 14 is provided with a plurality of vent holes 15 that communicate with the interior of the explosive tube 13. When the emulsion explosive is filled into the explosive tube 13, the air inside the explosive tube 13 can be discharged through the vent holes 15 provided in the end cap 14 to balance the air pressure inside and outside the explosive tube 13, thereby facilitating the filling of the emulsion explosive. A connector 16 is integrally formed at one end of the explosive tube 13 away from the end cap 14. A one-way valve 17 is installed at the connection between the connector 16 and the explosive tube 13. A drug injection nozzle 9 is fixedly connected to the free end of the feed hose 8 for use with the connector 16. When in use, the drug injection nozzle 9 connected to the free end of the feed hose 8 can be aligned with the connector 16, and then the emulsion explosive is squeezed and delivered along the feed hose 8 into the explosive tube 13 by the piston-type positive displacement pump 5. The one-way valve 17 is provided to prevent the explosive entering the explosive tube 13 from flowing out in the reverse direction. A plurality of mounting holes 18 are provided in a ring shape on the side wall of the explosive tube 13 near the joint 16. A clamping plate 19 with a triangular plate structure is provided in each mounting hole 18. The end of the clamping plate 19 near the joint 16 is rotatably connected to the side wall of the mounting hole 18. When the emulsion explosive is filled into the explosive tube 13, the side of the clamping plate 19 located inside the explosive tube 13 is squeezed by the emulsion explosive and rotates outward, thereby being clamped on the inner wall of the blasthole, thereby minimizing the problem of the explosive tube 13 slipping out of the blasthole due to excessive gravity after being filled with the emulsion explosive.

[0019] It should be noted that, when using this kind of automatic underground charging machine for emulsion explosives, the emulsion explosives are placed in the storage hopper 4, and the entire device is transferred to the mine through external transfer equipment. The user can push the handrail 3 to drive the roller 2 to roll along the mine road, and transfer the entire device to the pre-opened blasthole. At this time, the explosive tube 13 can be taken out from the gap between the side plate 12 and the outer wall of the storage hopper 4, and the end of the explosive tube 13 connected to the end cover 14 is inserted upward into the appropriate position in the blasthole opened on the top wall of the mine. Then the user connects the injection nozzle 9 installed at the free end of the feeding hose 8 to the joint 16, and at the same time opens the solenoid valve 7 and the piston type positive displacement pump 5, and cooperates with the feeding hose 8 to squeeze the emulsion explosive into the explosive tube 13. Since the lighter explosive tube 13 is first placed in the blasthole during the charging process and then the emulsion explosive is filled, it is not only convenient to load, but also can greatly improve the charging efficiency of the emulsion explosive. After the emulsion explosive is filled into the explosive tube 13, the clamping plate 19 connected to the mounting hole 18 and located on the inner side of the explosive tube 13 will rotate outward under the extrusion of the filled emulsion explosive, so as to be clamped on the inner wall of the blast hole, making the connection between the explosive tube 13 and the inner wall of the blast hole more stable, and trying to avoid the problem that the explosive tube 13 slips out of the blast hole due to excessive gravity after being filled with the emulsion explosive.

[0020] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. An underground automatic charging machine for emulsion explosive, comprising a storage hopper (4) installed on a transfer device, characterized in that: A piston-type positive-displacement pump (5) is provided at the bottom of the storage hopper (4). The bottom end of the storage hopper (4) is communicated with the feed end of the piston-type positive-displacement pump (5). A solenoid valve (7) is installed at the connection between the storage hopper (4) and the piston-type positive-displacement pump (5). A material extrusion pipe (6) is fixedly installed at the discharge end of the piston-type positive-displacement pump (5). A conveying flexible pipe (8) is fixedly connected to the end of the material extrusion pipe (6) away from the piston-type positive-displacement pump (5). A group of side plates (12) are fixedly connected to the conveying devices on both sides of the storage hopper (4). A gap is formed between the side plates (12) and the outer wall of the storage hopper (4), and a plurality of explosive pipes (13) are clamped in this gap.

2. The underground automatic charging machine for emulsion explosive according to claim 1, characterized in that: The conveying device includes a bottom plate (1) provided below the material extrusion pipe (5). The bottom of the piston-type positive-displacement pump (5) is fixed to the upper surface of the bottom plate (1). Rollers (2) are installed on the bottom walls at both ends of the bottom plate (1).

3. The automatic underground emulsion explosive charging machine according to claim 2, characterized in that: Two symmetrically arranged handrails (3) are fixedly connected to the upper surface of one end of the bottom plate (1). A push rod is fixedly connected between the ends of the two handrails (3) away from the bottom plate (1), and an anti-slip pattern is provided in the middle section of the push rod.

4. An underground automatic charging machine for emulsion explosive according to claim 3, characterized in that: A support frame (10) is fixedly connected to the upper surface of the bottom plate (1) on the side of the storage hopper (4) away from the handrail (3). A diesel generator (11) is detachably connected above the support frame (10).

5. The underground automatic charging machine for emulsion explosive according to claim 4, characterized in that: The side plate (12) has a plate-like structure and is made of an elastic material. The distance between the top end of the side plate (12) and the outer wall of the storage hopper (4) is smaller than the diameter of the explosive pipe (13).

6. The underground automatic charging machine for emulsion explosive according to claim 1, characterized in that: The inside of the explosive pipe (13) is hollow. One end of the explosive pipe (13) is fixedly connected with an end cover (14), and a plurality of exhaust holes (15) communicated with the inside of the explosive pipe (13) are provided on the end cover (14).

7. An underground automatic charging machine for emulsion explosive according to claim 6, characterized in that: A joint (16) is integrally formed at the end of the explosive pipe (13) away from the end cover (14). A one-way valve (17) is installed at the connection between the joint (16) and the explosive pipe (13). A medicine injection nozzle (9) cooperating with the joint (16) is fixedly connected to the free end of the conveying flexible pipe (8).

8. An underground automatic charging machine for emulsion explosive according to claim 7, characterized in that: A plurality of mounting holes (18) are annularly provided on the side wall of the explosive pipe (13) near the joint (16). A clamping plate (19) in the shape of a triangular plate is arranged in each mounting hole (18), and one end of the clamping plate (19) close to the joint (16) is rotatably connected to the side wall of the mounting hole (18).

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