Air energy crushing device for mining strip mine

Abstract

The utility model relates to the field of air energy crushing for strip mine mining, in particular to an air energy crushing device for strip mine mining, which comprises a movable support with an automatic pipe body cutting tool, a cracking device and the like, wherein the cracking device consists of a roll paper layer, an outer sleeve and the like; compared with the prior art, the device has the advantages that an original long liquid conveying pipeline between the Dewar tank and the fracturing device is supported through the movable support, the cutter combination for cutting a pipe body through electric control is exactly arranged on the support, and the device can replace personnel to cut off the liquid conveying pipeline remotely, so that the labor intensity of workers is reduced, and the working efficiency is improved. And the rest part is evacuated from the blasting point through the moving frame with the wheels, so that accidents and dangers caused by excessive approaching of the personnel to the blasting point are avoided.

Description

Technical Field

[0001] This utility model relates to the field of air-source heat pump crushing for open-pit mining, specifically to an air-source heat pump crushing device for open-pit mining. Background Technology

[0002] Air-powered blasting, also known as gas fracturing engineering, is an engineering technology that uses high-pressure gas to break rocks or ores. In this process, liquid oxygen is injected into the fracturing device, and a resistance wire is used for ignition. Under the flame-retardant effect of oxygen, the rolled paper burns violently, the heat spreads rapidly, and high pressure needs to be generated in the blast hole to gradually blast the rock apart.

[0003] Air-source blasting devices typically use a Dewar flask to supply liquid oxygen to the fracturing device. The liquid oxygen is transported via a liquid delivery pipeline. Since the fracturing device is a single-use component used to insert into the rock for explosion, the liquid delivery pipeline needs to be cut off after oxygenation is completed, and the equipment on the Dewar flask side needs to be moved away from the blast point to prevent blasting. The work of cutting off the liquid delivery pipeline is usually carried out by personnel holding scissors or cutting knives near the fracturing device. However, personnel getting too close to the blast point poses a significant risk. Therefore, an air-source blasting device is needed for open-pit mining. Utility Model Content

[0004] I. Technical problems to be solved

[0005] The technical problem this invention aims to solve is that the work of cutting off liquid oxygen pipelines is usually carried out manually by personnel holding knives and approaching the blast point, which poses certain safety hazards.

[0006] II. Technical Solution

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: an air-powered crushing device for open-pit mining, including a Dewar canister, a paper roll layer connected to one side of the Dewar canister, and a liquid filling pipe connected between the Dewar canister and the paper roll layer.

[0008] A movable frame that mates with the filling tube is connected between the Dewar can and the roll paper layer. One end of the movable frame is connected to an electric telescopic rod pointing downwards. A cutter is connected to the moving end of the electric telescopic rod. A blade groove that mates with the cutter is connected to one end of the movable frame. The cutter and the blade groove are respectively located above and below the filling tube. Multiple slits that mate with the cutter are connected to the filling tube.

[0009] Furthermore, one end of the filling tube extends into the paper roll layer, and the portion of the filling tube extending into the paper roll layer is connected to multiple drip holes. An outer sleeve is connected to the outside of the paper roll layer, and an ignition wire and an exhaust pipe are respectively connected to the top of the paper roll layer on both sides of the filling tube. Both the ignition wire and the exhaust pipe extend to the outer side of the top of the paper roll layer.

[0010] Furthermore, a water pump and a flow meter are connected to the end of the filling pipe near the Dewar jar to control the metering and speed of liquid oxygen delivered from the Dewar jar to the fracturing device through the filling pipe.

[0011] Furthermore, multiple wheels are rotatably connected below the mobile frame, and a mounting bracket is connected to the Dewar canister.

[0012] Furthermore, the movable frame is connected to a plurality of tube frames that cooperate with the filling tube, and the tube frames are connected to a plurality of shaft frames. The shaft frames are rotatably connected to ball bearings that fit in close contact with the filling tube. The tube frames provide support for the filling tube, and the rotatable ball bearings, in addition to providing support for the filling tube, also facilitate its easy loading and unloading in the movable frame, reducing resistance.

[0013] III. Beneficial Effects

[0014] The advantages of this invention compared to the prior art are as follows: This device provides support for the long infusion pipeline between the Dewar canister and the fracturing device through a movable support. On this support, there is a combination of cutters that cut the pipeline by electronic control. This can replace personnel and cut the infusion pipeline from a distance. The remaining part can be removed from the blast point by a movable frame with wheels, avoiding personnel from getting too close to the blast point and causing accidents and dangers. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of an air-powered crushing device for open-pit mining, according to this utility model. Figure 1 .

[0016] Figure 2 This is a schematic diagram of the external structure of an air-powered crushing device for open-pit mining, according to this utility model. Figure 2 .

[0017] Figure 3 This is a schematic diagram of the internal structure of an air-powered crushing device for open-pit mining, according to this utility model.

[0018] Figure 4 yes Figure 1 A schematic diagram of the structure of part A.

[0019] Figure 5 yes Figure 2 A schematic diagram of the structure of part B.

[0020] As shown in the figure: 1. Outer tube, 2. Filling tube, 3. Drip hole, 4. Paper roll layer, 5. Ignition wire, 6. Exhaust pipe, 7. Moving frame, 8. Wheel, 9. Tube rack, 10. Shaft rack, 11. Ball bearing, 12. Electric telescopic rod, 13. Cutter, 14. Knife groove, 15. Flow meter, 16. Water pump, 17. Dewar jar, 18. Mounting frame, 19. Cutting slit. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] Example 1

[0023] Combined with appendix Figure 1-4 To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: an air-powered crushing device for open-pit mining, including a Dewar 17, a mounting frame 18 connected to the Dewar 17, a paper roll layer 4 connected to one side of the Dewar 17, a filling pipe 2 connected between the Dewar 17 and the paper roll layer 4, a water pump 16 and a flow meter 15 connected to the end of the filling pipe 2 near the Dewar 17, used to control the metering and speed of liquid oxygen delivered from the Dewar 17 to the crusher through the filling pipe 2, one end of the filling pipe 2 extending into the paper roll layer 4, a plurality of drip holes 3 connected to the part of the filling pipe 2 extending into the paper roll layer 4, an outer sleeve 1 connected to the outside of the paper roll layer 4, and an ignition wire 5 and an exhaust pipe 6 respectively connected to the top of the paper roll layer 4 on both sides of the filling pipe 2, the ignition wire 5 and the exhaust pipe 6 both extending to the outer side of the top of the paper roll layer 4.

[0024] A portion of the filling pipe 2, together with the roll paper layer 4, the outer sleeve 1, the vent pipe 6, and the ignition fuse, forms a fracturing device. The fracturing device is buried in the ground and absorbs the liquid oxygen delivered by the filling pipe 2 through the roll paper layer 4. The liquid oxygen and oxygen are used as combustion aids. The roll paper is a soft material similar to common toilet paper and serves as a combustible material. The ignition fuse provides ignition to the roll paper layer 4, which is rich in liquid oxygen. Through a series of complex explosion effects, the fracturing device breaks up the ground rocks. The vent pipe 6 is used to determine the degree of liquid oxygen absorption by the roll paper layer 4 during the oxygen filling process. The outer sleeve 1, as the outermost rubber sleeve, is made of soft material. The Dewar canister 17 is a device used to supply liquid oxygen to the fracturing device through the filling pipe 2. It is not an improvement point in the technical solution of this application and belongs to the scope of prior art, so it will not be described in detail.

[0025] Example 2

[0026] Combined with appendix Figure 1-3 and appendix Figure 5A movable frame 7, which cooperates with the filling tube 2, is connected between the Dewar can 17 and the roll paper layer 4. Multiple wheels 8 are rotatably connected to the bottom of the movable frame 7. Multiple tube frames 9, which cooperate with the filling tube 2, are connected inside the movable frame 7. Multiple shaft frames 10 are connected inside the tube frames 9. Ball bearings 11, which are rotatably connected to the shaft frames 10 and are in close contact with the filling tube 2, are provided by the tube frames 9. The rotatable ball bearings 11 not only provide support for the filling tube 2, but also facilitate its easy retraction and extension in the movable frame 7, reducing resistance. An electric telescopic rod 12 is connected downward at one end of the movable frame 7. A cutter 13 is connected to the moving end of the electric telescopic rod 12. A knife groove 14, which cooperates with the cutter 13, is connected to one end of the movable frame 7. The cutter 13 and the knife groove 14 are respectively located above and below the filling tube 2. Multiple slits 19, which cooperate with the cutter 13, are connected to the filling tube 2.

[0027] The movable frame 7 supports the filling pipe 2, which is located at a great distance between the Dewar 17 and the fracturing device. In this technical solution, the filling pipe 2 connects the oxygen supply pipe of the fracturing device and the oxygen supply pipe of the Dewar 17. They are referred to as filling pipe 2. The filling pipe 2 is closer to the fracturing device and has multiple slits 19. The slits 19 are the softer parts of the filling pipe 2, which makes it easy to cut the filling pipe 2. Then, the rest of the device components, except for the fracturing device, are removed from the blast point. The cutting tool assembly is located at one end of the movable end and is controlled by an electric telescopic rod 12. In order to facilitate the movement of the movable frame 7, which is relatively close to the blast point, a wheel structure 8 is specially set below it to facilitate the movement of the frame.

[0028] In the specific implementation of this utility model, the fracturing device connected to one side of the Dewar 17 is first buried at the blast point. During burial, the top of the fracturing device is slightly exposed above the ground. Liquid oxygen is then supplied to the fracturing device structure through the filling pipe 2. In actual use, the filling pipe 2 is divided into a fracturing device carrying part and a Dewar 17 carrying part. The length of the filling pipe 2 between the Dewar 17 and the fracturing device will definitely be large, requiring the support of the moving frame 7 to prevent it from sagging and breaking and leaking. Because the filling pipe 2 is divided into two parts in actual use, it needs to pass through the moving frame 7 before being connected. When passing through the pipe rack 9 of the moving frame 7, the ball bearings 11 inside the pipe rack 9 are connected to the filling pipe. 2. The ball bearing 11 is in a rotating state inside the tube frame 9. This reduces the resistance between the larger liquid filling tube 2 and the longer moving frame 7 when the larger liquid filling tube 2 is moved and retracted. When the paper roll layer 4 of the fracturing device obtains sufficient liquid oxygen, the cutter 13 is pushed down by the electric telescopic rod 12, which, together with the lower cutter groove 14, cuts the liquid filling tube 2. Then, through the wheel 8 structure, the part of the liquid filling tube 2 left in the moving frame 7 after cutting is removed from the blast point, as well as the moving frame 7, to avoid being affected by the explosion wave. The part of the liquid filling tube 2 belonging to the fracturing device is removed from the moving frame 7. The remaining part of the device can be combined with a new fracturing device part for continued use.

[0029] 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. An air-powered crushing device for open-pit mining, comprising a Dewar jar (17), wherein a paper roll layer (4) is connected to one side of the Dewar jar (17), and a liquid filling pipe (2) is connected between the Dewar jar (17) and the paper roll layer (4), characterized in that: A movable frame (7) that cooperates with the filling tube (2) is connected between the Dewar jar (17) and the roll paper layer (4). One end of the movable frame (7) is connected to an electric telescopic rod (12) which is downward. The moving end of the electric telescopic rod (12) is connected to a cutter (13). One end of the movable frame (7) is connected to a knife groove (14) that cooperates with the cutter (13). The cutter (13) and the knife groove (14) are respectively located above and below the filling tube (2). Multiple slits (19) that cooperate with the cutter (13) are connected on the filling tube (2).

2. The air-powered crushing device for open-pit mining according to claim 1, characterized in that: One end of the filling tube (2) extends into the paper roll layer (4). The portion of the filling tube (2) extending into the paper roll layer (4) is connected to multiple drip holes (3). The outer sleeve (1) is connected to the outside of the paper roll layer (4). Ignition wire (5) and exhaust pipe (6) are respectively connected to the top of the paper roll layer (4) on both sides of the filling tube (2). Both the ignition wire (5) and the exhaust pipe (6) extend to the outer side of the top of the paper roll layer (4).

3. The air-powered crushing device for open-pit mining according to claim 1, characterized in that: The filling pipe (2) is connected to a water pump (16) and a flow meter (15) at one end near the Dewar jar (17).

4. The air-powered crushing device for open-pit mining according to claim 1, characterized in that: Multiple wheels (8) are rotatably connected below the mobile frame (7), and the Dewar can (17) is connected to a mounting bracket (18).

5. The air-powered crushing device for open-pit mining according to claim 1, characterized in that: The movable frame (7) is connected to a plurality of tube frames (9) that cooperate with the filling tube (2). The tube frames (9) are connected to a plurality of shaft frames (10). The shaft frames (10) are rotatably connected to ball bearings (11) that are in contact with the filling tube (2).

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