Emulsion matrix long-distance vertical conveying device and method

Abstract

The invention discloses a long-distance vertical conveying device for an emulsion matrix. The long-distance vertical conveying device comprises a ground matrix tank arranged on the ground, a screw pump, an n-shaped connector, a one-way valve, a compressed air valve, a compressed air source, an underground matrix tank arranged underground and a pesticide conveying main pipe vertically arranged in a drill hole. An outlet of the ground matrix tank is communicated with an inlet of the screw pump, an outlet of the screw pump is communicated with a lower end opening of the n-shaped connector, an upper end opening of the chemical conveying main pipe is communicated with the other lower end opening of the n-shaped connector, and the chemical conveying main pipe is communicated with an inlet of the underground matrix tank through a chemical conveying branch pipe. The one-way valve is arranged in an upper port of the n-shaped connector, an outlet of the compressed air valve is communicated with an inlet of the one-way valve, and the compressed air source is communicated with an inlet of the compressed air valve. The conveying efficiency and safety of conveying the emulsion matrix to the underground mine are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of emulsion explosives, and more specifically, to a device and method for vertically conveying an emulsion matrix over a long distance. Background Art

[0002] Explosives are needed for underground non-coal mining, especially mixed emulsion explosives. The main component of mixed emulsion explosives is emulsion matrix. The general way to transport emulsion matrix to underground mines is to put the emulsion matrix into a cage and transport it to the underground mining site through the cage. However, the emulsion matrix is ​​dangerous. Once a safety accident occurs through the auxiliary shaft cage, it will cause damage to the auxiliary shaft. Due to the high viscosity of the emulsion matrix, for safety reasons, the conveying pressure during the emulsion matrix transportation process cannot be too high, generally not exceeding 1.5MPa, and long-distance transportation is not allowed. The general conveying distance is less than 100m. Excessive conveying distance will cause excessive pressure and cause safety hazards. At the same time, during the emulsion matrix transportation process, other items are generally not transported with the tank. With the increase in the depth of mining, the use of cages to transport explosives has increased the cost of emulsion matrix transportation and the safety hazards of the cages in the auxiliary shaft. Summary of the invention

[0003] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described hereinafter.

[0004] In order to achieve these purposes and other advantages according to the present invention, there is provided an emulsified matrix long-distance vertical conveying device, comprising: a ground matrix tank disposed on the ground, a screw pump, an n-shaped joint, a one-way valve, a compressed air valve, a compressed air source, a downhole matrix tank disposed in the well, and a drug delivery main pipe vertically disposed in the borehole;

[0005] The outlet of the surface matrix tank is communicated with the inlet of the screw pump, the outlet of the screw pump is communicated with a lower port of the n-shaped connector, the upper port of the drug delivery main pipe is communicated with another lower port of the n-shaped connector, and the drug delivery main pipe is communicated with the inlet of the downhole matrix tank through a drug delivery branch pipe;

[0006] The one-way valve is arranged in the upper port of the n-shaped joint, the outlet of the compressed air valve is communicated with the inlet of the one-way valve, and the compressed air source is communicated with the inlet of the compressed air valve.

[0007] Preferably, there are m horizontal working faces in underground mining, and an underground matrix tank is provided in each horizontal working face; each underground matrix tank is connected to the drug delivery main pipe through a drug delivery branch pipe, an electric ball valve is provided between the drug delivery branch pipe corresponding to the lowest horizontal working face and the drug delivery main pipe, and a three-way ball valve is provided between the drug delivery branch pipe and the drug delivery main pipe corresponding to other horizontal working faces.

[0008] Preferably, the drug delivery main pipe includes m segments, the same number as the working surface, and the m segments are connected in sequence from top to bottom to produce m-1 connections, and the m-1 connections correspond to working surfaces at other levels except the lowest level. The drug delivery branch pipes in the working surfaces corresponding to each pair of adjacent segments and their connections are connected by the three-way ball valve, and the lower port of the lowest segment corresponds to the working surface at the lowest level, and the lower port of the lowest segment is connected to the drug delivery branch pipe in the working surface at the lowest level by the electric ball valve.

[0009] Preferably, a pressure sensor is provided at a port of the n-shaped connector for communicating with the outlet of the screw pump.

[0010] Preferably, a quality sensor is provided below each downhole matrix tank.

[0011] Preferably, it also includes a water tank and a water pump arranged on the ground;

[0012] The outlet of the water tank is communicated with the inlet of the water pump, and the outlet of the water pump is communicated with the ground matrix tank.

[0013] The present invention also provides a method for long-distance vertical transportation of an emulsified matrix, which is applied to the above-mentioned long-distance vertical transportation device of an emulsified matrix, comprising:

[0014] Start the screw pump to transport the emulsified matrix in the ground matrix tank to the drug delivery main pipe, open the compressed air valve, and use compressed air to transport the emulsified matrix in the drug delivery main pipe to the underground matrix tank.

[0015] The present invention also provides a method for long-distance vertical transportation of an emulsified matrix, which is applied to the above-mentioned long-distance vertical transportation device of an emulsified matrix, comprising:

[0016] Start the screw pump to transport the emulsified matrix in the ground matrix tank to the drug delivery main pipe, open the three-way ball valve and / or electric ball valve corresponding to the working face to which the emulsified matrix needs to be delivered, close other three-way ball valves and / or electric ball valves, open the compressed air valve, and use compressed air to transport the emulsified matrix in the drug delivery main pipe to the underground matrix tank corresponding to the working face to which it needs to be delivered.

[0017] The present invention also provides a method for long-distance vertical transportation of an emulsified matrix, which is applied to the above-mentioned long-distance vertical transportation device of an emulsified matrix, comprising:

[0018] S1. Set the upper limit of the screw pump's delivery pressure, total delivery mass, delivery efficiency and compressed air pressure, and then determine the delivery mass of the screw pump each time in combination with the level of the working surface to which the emulsified matrix needs to be delivered and the inner diameter of the drug delivery main pipe;

[0019] S2, start the screw pump to transport the emulsified matrix of each pumping mass from the ground matrix tank to the drug delivery main pipe, stop the screw pump, open the three-way ball valve and / or electric ball valve corresponding to the working face to which the emulsified matrix needs to be delivered, close other three-way ball valves and / or electric ball valves, open the compressed air valve, use compressed air to transport the emulsified matrix in the drug delivery main pipe to the downhole matrix tank corresponding to the working face to which it needs to be delivered, observe the mass increment on the mass sensor below the downhole matrix tank, and when the mass increment on the mass sensor below the downhole matrix tank is substantially consistent with the mass of each pumping, close the compressed air valve;

[0020] S3, repeat step S2 until the sum of the mass increments on the mass sensor below the downhole matrix tank substantially matches the set total transport mass.

[0021] The present invention includes at least the following beneficial effects: the long-distance vertical transportation device and method of the emulsified matrix provided by the present invention directly reaches the underground by drilling a hole on the ground, and arranging a drug delivery main pipe in the drill hole. The emulsified matrix is ​​transported from the surface to the underground through the drug delivery main pipe, which belongs to continuous transportation, improves the transportation efficiency of the emulsified matrix, eliminates the safety hazards caused by the transportation of the emulsified matrix through the auxiliary shaft cage to the auxiliary shaft, and is an efficient and safe method for transporting the emulsified matrix to the underground mine.

[0022] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of the long-distance vertical transport device for the emulsified matrix described in Example 3 of the present invention. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0025] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] Embodiment 1:

[0027] An emulsified matrix long-distance vertical conveying device comprises: a ground matrix tank arranged on the ground, a screw pump, an N-shaped joint, a one-way valve, a compressed air valve, a compressed air source, a downhole matrix tank arranged in the well, and a drug delivery main pipe arranged vertically in the borehole;

[0028] The outlet of the surface matrix tank is communicated with the inlet of the screw pump, the outlet of the screw pump is communicated with a lower port of the n-shaped connector, the upper port of the drug delivery main pipe is communicated with another lower port of the n-shaped connector, and the drug delivery main pipe is communicated with the inlet of the downhole matrix tank through a drug delivery branch pipe;

[0029] The one-way valve is arranged in the upper port of the n-shaped joint, the outlet of the compressed air valve is communicated with the inlet of the one-way valve, and the compressed air source is communicated with the inlet of the compressed air valve.

[0030] A method for long-distance vertical transportation of an emulsified matrix applied to the above-mentioned long-distance vertical transportation device of an emulsified matrix includes: starting a screw pump to transport the emulsified matrix in a ground matrix tank to a drug delivery main pipe, opening a compressed air valve, and using compressed air to transport the emulsified matrix in the drug delivery main pipe to an underground matrix tank.

[0031] Embodiment 2:

[0032] An emulsified matrix long-distance vertical conveying device comprises: a ground matrix tank arranged on the ground, a screw pump, an N-shaped joint, a one-way valve, a compressed air valve, a compressed air source, a downhole matrix tank arranged in the well, and a drug delivery main pipe arranged vertically in the borehole;

[0033] The outlet of the surface matrix tank is communicated with the inlet of the screw pump, the outlet of the screw pump is communicated with a lower port of the n-shaped connector, the upper port of the drug delivery main pipe is communicated with another lower port of the n-shaped connector, and the drug delivery main pipe is communicated with the inlet of the downhole matrix tank through a drug delivery branch pipe;

[0034] The one-way valve is arranged in the upper port of the n-shaped joint, the outlet of the compressed air valve is communicated with the inlet of the one-way valve, and the compressed air source is communicated with the inlet of the compressed air valve;

[0035] There are m horizontal working faces in underground mining, and an underground matrix tank is arranged in each horizontal working face; each underground matrix tank is connected with the drug delivery main pipe through a drug delivery branch pipe, an electric ball valve is arranged between the drug delivery branch pipe and the drug delivery main pipe corresponding to the lowest horizontal working face, and a three-way ball valve is arranged between the drug delivery branch pipe and the drug delivery main pipe corresponding to other horizontal working faces.

[0036] A method for long-distance vertical transportation of an emulsified matrix applied to the above-mentioned long-distance vertical transportation device for an emulsified matrix comprises:

[0037] Start the screw pump to transport the emulsified matrix in the ground matrix tank to the drug delivery main pipe, open the three-way ball valve and / or electric ball valve corresponding to the working face to which the emulsified matrix needs to be delivered, close other three-way ball valves and / or electric ball valves, open the compressed air valve, and use compressed air to transport the emulsified matrix in the drug delivery main pipe to the underground matrix tank corresponding to the working face to which it needs to be delivered.

[0038] Embodiment 3:

[0039] An emulsified matrix long-distance vertical conveying device comprises: a ground matrix tank arranged on the ground, a screw pump, an N-shaped joint, a one-way valve, a compressed air valve, a compressed air source, a downhole matrix tank arranged in the well, and a drug delivery main pipe arranged vertically in the borehole;

[0040] The outlet of the surface matrix tank is communicated with the inlet of the screw pump, the outlet of the screw pump is communicated with a lower port of the n-shaped connector, the upper port of the drug delivery main pipe is communicated with another lower port of the n-shaped connector, and the drug delivery main pipe is communicated with the inlet of the downhole matrix tank through a drug delivery branch pipe;

[0041] The one-way valve is arranged in the upper port of the n-shaped joint, the outlet of the compressed air valve is communicated with the inlet of the one-way valve, and the compressed air source is communicated with the inlet of the compressed air valve;

[0042] There are m horizontal working faces in underground mining, and an underground matrix tank is arranged in each horizontal working face; each underground matrix tank is connected with the drug delivery main pipe through a drug delivery branch pipe, an electric ball valve is arranged between the drug delivery branch pipe and the drug delivery main pipe corresponding to the lowest horizontal working face, and a three-way ball valve is arranged between the drug delivery branch pipe and the drug delivery main pipe corresponding to other horizontal working faces.

[0043] Specifically, the drug delivery main pipe includes m segments, which are the same number as the working surface. The m segments are connected in sequence from top to bottom to generate m-1 connections. The m-1 connections correspond to the working surfaces at other levels except the lowest level. The drug delivery branch pipes in the working surfaces corresponding to each pair of adjacent segments and their connections are connected by the three-way ball valve. The lower port of the lowest segment corresponds to the working surface at the lowest level. The lower port of the lowest segment is connected to the drug delivery branch pipe in the working surface at the lowest level by the electric ball valve. For example, Figure 1 As shown, there are two horizontal working surfaces, so the drug delivery main pipe is composed of two segments.

[0044] The compressed air source may come from an air compressor, and the compressed air pressure generated by the air compressor is adjustable.

[0045] A pressure sensor is provided at the port of the n-shaped joint that is connected to the outlet of the screw pump, and is used to detect the delivery pressure of the screw pump.

[0046] A mass sensor is arranged below each downhole matrix tank to weigh the mass of the emulsified matrix in the downhole matrix tank.

[0047] The emulsified matrix long-distance vertical conveying device also includes a water tank and a water pump arranged on the ground;

[0048] The outlet of the water tank is connected to the inlet of the water pump, and the outlet of the water pump is connected to the ground matrix tank. The water pump and the water tank are used to adjust the viscosity of the emulsified matrix in the ground matrix tank so that the emulsified matrix meets the safety requirements of long-distance vertical transportation.

[0049] A method for long-distance vertical transportation of an emulsified matrix applied to the above-mentioned long-distance vertical transportation device for an emulsified matrix comprises:

[0050] S1. Set the upper limit of the screw pump's delivery pressure, total delivery mass, delivery efficiency and compressed air pressure, and then determine the delivery mass of the screw pump each time in combination with the level of the working surface to which the emulsified matrix needs to be delivered and the inner diameter of the drug delivery main pipe;

[0051] S2, start the screw pump to transport the emulsified matrix of each pumping mass from the ground matrix tank to the drug delivery main pipe, stop the screw pump, open the three-way ball valve and / or electric ball valve corresponding to the working face to which the emulsified matrix needs to be delivered, close other three-way ball valves and / or electric ball valves, open the compressed air valve, use compressed air to transport the emulsified matrix in the drug delivery main pipe to the downhole matrix tank corresponding to the working face to which it needs to be delivered, observe the mass increment on the mass sensor below the downhole matrix tank, and when the mass increment on the mass sensor below the downhole matrix tank is substantially consistent with the mass of each pumping, close the compressed air valve;

[0052] S3, repeat step S2 until the sum of the mass increments on the mass sensor below the downhole matrix tank substantially matches the set total transport mass.

[0053] For example: the working surface to which the emulsified matrix needs to be delivered is 300m from the ground surface, the borehole diameter is 200mm, the inner diameter of the drug delivery tube is 90mm, the upper limit of the screw pump delivery pressure is set to 1.0MPa, the delivery efficiency is 5t / h, the compressed air pressure is 0.6MPa, the delivery mass is set to 5t, and the screw pump pumps 200kg each time. During delivery, start the screw pump, and after pumping 200kg, stop the screw pump and open the compressed air valve. When the underground matrix tank measures an increase in mass, and the increase is 180±10kg, close the compressed air valve and start the screw pump. Repeat the above process until 5t of emulsified matrix is ​​delivered.

[0054] Another example: the working surface to which the emulsified matrix needs to be delivered is 600m away from the ground surface, the borehole diameter is 250mm, the inner diameter of the drug delivery tube is 110mm, the upper limit of the screw pump delivery pressure is set to 1.5MPa, the delivery efficiency is 6t / h, the compressed air pressure is 0.8MPa, the delivery mass is set to 6t, and the screw pump pumps 300kg of mass each time. During delivery, the screw pump is started. After pumping 300kg, the screw pump stops and the compressed air valve is opened. When the underground matrix tank measures an increase in mass and the increase is 280±10kg, the compressed air valve is closed and the screw pump is started. Repeat the above process until 6t of emulsified matrix is ​​delivered.

[0055] It is not difficult to see from the above embodiments that the long-distance vertical transportation device and method for emulsified matrix provided by the present invention directly reaches the underground by drilling a hole on the ground, arranging a drug delivery pipe in the drilled hole, and the emulsified matrix is ​​transported from the surface to the underground through the drug delivery pipe, which belongs to continuous transportation, improves the transportation efficiency of the emulsified matrix, eliminates the safety hazard to the auxiliary shaft caused by the transportation of the emulsified matrix through the auxiliary shaft cage, and is an efficient and safe method for transporting the emulsified matrix to the underground mine.

[0056] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A long-distance vertical transport device for emulsified matrix, characterized in that: include: A ground matrix tank, a screw pump, an N-type joint, a one-way valve, a compressed air valve, and a compressed air source are arranged on the ground, a downhole matrix tank is arranged in the well, and a drug delivery main pipe is arranged vertically in the borehole; The outlet of the surface matrix tank is communicated with the inlet of the screw pump, the outlet of the screw pump is communicated with a lower port of the n-shaped connector, the upper port of the drug delivery main pipe is communicated with another lower port of the n-shaped connector, and the drug delivery main pipe is communicated with the inlet of the downhole matrix tank through a drug delivery branch pipe; The one-way valve is arranged in the upper port of the n-shaped joint, the outlet of the compressed air valve is communicated with the inlet of the one-way valve, and the compressed air source is communicated with the inlet of the compressed air valve.

2. The long-distance vertical transport device for emulsified matrix according to claim 1, characterized in that: There are m horizontal working faces in underground mining, and an underground matrix tank is arranged in each horizontal working face; each underground matrix tank is connected with the drug delivery main pipe through a drug delivery branch pipe, an electric ball valve is arranged between the drug delivery branch pipe and the drug delivery main pipe corresponding to the lowest horizontal working face, and a three-way ball valve is arranged between the drug delivery branch pipe and the drug delivery main pipe corresponding to other horizontal working faces.

3. The long-distance vertical transport device for emulsified matrix according to claim 2, characterized in that: The drug delivery main pipe includes m segments, the same number as the working surface, and the m segments are connected in sequence from top to bottom to produce m-1 connections, and the m-1 connections correspond to the working surfaces at other levels except the lowest level. The drug delivery branch pipes in the working surfaces corresponding to each pair of adjacent segments and their connections are connected by the three-way ball valve, and the lower port of the lowest segment corresponds to the working surface at the lowest level. The lower port of the lowest segment is connected to the drug delivery branch pipe in the working surface at the lowest level by the electric ball valve.

4. The long-distance vertical transport device for emulsified matrix according to claim 3, characterized in that: A pressure sensor is provided at the port of the n-shaped joint for communicating with the outlet of the screw pump.

5. The long-distance vertical transport device for emulsified matrix according to claim 4, characterized in that: A quality sensor is provided below each downhole matrix tank.

6. The long-distance vertical transport device for emulsified matrix according to claim 1, characterized in that: It also includes a water tank and a water pump arranged on the ground; The outlet of the water tank is communicated with the inlet of the water pump, and the outlet of the water pump is communicated with the ground matrix tank.

7. A method for long-distance vertical transportation of an emulsified matrix, which is applied to the long-distance vertical transportation device of an emulsified matrix as claimed in claim 1, comprising: Start the screw pump to transport the emulsified matrix in the ground matrix tank to the drug delivery main pipe, open the compressed air valve, and use compressed air to transport the emulsified matrix in the drug delivery main pipe to the underground matrix tank.

8. A method for long-distance vertical transportation of an emulsified matrix, applied to the long-distance vertical transportation device of an emulsified matrix as claimed in claim 2, comprising: Start the screw pump to transport the emulsified matrix in the ground matrix tank to the drug delivery main pipe, open the three-way ball valve and / or electric ball valve corresponding to the working face to which the emulsified matrix needs to be delivered, close other three-way ball valves and / or electric ball valves, open the compressed air valve, and use compressed air to transport the emulsified matrix in the drug delivery main pipe to the underground matrix tank corresponding to the working face to which it needs to be delivered.

9. A method for long-distance vertical transportation of an emulsified matrix, which is applied to the long-distance vertical transportation device of an emulsified matrix as claimed in claim 5, comprising: S1. Set the upper limit of the screw pump's delivery pressure, total delivery mass, delivery efficiency and compressed air pressure, and then determine the delivery mass of the screw pump each time in combination with the level of the working surface to which the emulsified matrix needs to be delivered and the inner diameter of the drug delivery main pipe; S2, start the screw pump to transport the emulsified matrix of each pumping mass from the ground matrix tank to the drug delivery main pipe, stop the screw pump, open the three-way ball valve and / or electric ball valve corresponding to the working face to which the emulsified matrix needs to be delivered, close other three-way ball valves and / or electric ball valves, open the compressed air valve, use compressed air to transport the emulsified matrix in the drug delivery main pipe to the downhole matrix tank corresponding to the working face to which it needs to be delivered, observe the mass increment on the mass sensor below the downhole matrix tank, and when the mass increment on the mass sensor below the downhole matrix tank is substantially consistent with the mass of each pumping, close the compressed air valve; S3, repeat step S2 until the sum of the mass increments on the mass sensor below the downhole matrix tank substantially matches the set total transport mass.

Images