On-site mixed explosive conveying pipeline

Abstract

The utility model relates to an on-site mixed explosive conveying pipeline which comprises an explosive semi-finished product conveying hose and at least one additive conveying hose, and the additive conveying hoses are laid in the explosive semi-finished product conveying hose in the length direction of the explosive semi-finished product conveying hose. The two ends of any additive conveying hose extend to the feeding end and the discharging end of the explosive semi-finished product conveying hose correspondingly and are fixedly arranged in the feeding end and the discharging end correspondingly. Compared with the prior art, during water hole charging, only the pipe pulling speed of the explosive semi-finished product conveying hose needs to be controlled, the pipe pulling reliability is improved, and the explosive charging effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of on-site blasting construction, and particularly relates to a conveying pipeline for on-site mixed explosives. Background Art

[0002] In the field of on-site civil blasting construction, when an on-site mixed explosive truck fills a blast hole with explosives, the semi-finished explosives need to be conveyed through a 30 - 40-meter-long semi-finished explosive conveying hose into the blast hole. To timely and accurately control the density of the explosives, at least one additive also needs to be pumped through a 30 - 40-meter-long additive conveying hose to the end of the semi-finished explosive conveying hose (each additive corresponds to one additive conveying hose), and then enter the blast hole after being mixed at the end and form explosives after reaction. Each additive conveying hose has the same length as the semi-finished explosive conveying hose, both being 30 - 40 meters; in the prior art, each additive conveying hose is arranged outside the semi-finished explosive conveying hose, and the two are only connected at the end for convenient material mixing; during on-site construction, operators need to drag multiple conveying hoses simultaneously among multiple blast holes to complete the charging operation for all blast holes, resulting in extremely cumbersome on-site construction operations, high labor intensity, and low charging efficiency.

[0003] In addition, when the on-site mixed explosive truck needs to fill a blast hole with water, the end of the semi-finished explosive conveying hose must be placed at the bottom of the water column in the blast hole. When charging, the newly filled explosives continuously raise the water in the blast hole, and the hose is pulled out while charging to ensure the continuity of charging in the blast hole. When the additive conveying hose is placed outside the semi-finished explosive conveying hose, it is necessary to accurately control the pulling-out speed of both the semi-finished explosive conveying hose and each additive conveying hose simultaneously. The reliability of pulling out the hose is relatively low, and it is easy to cause inconsistent pulling-out speeds of each conveying hose, affecting the explosive filling effect; moreover, it is necessary to separately set hose reels, hydraulic proportional valves, rotary encoders, etc. for the semi-finished explosive conveying hose and each additive conveying hose on the on-site mixed explosive truck, resulting in a high cost of the on-site mixed explosive truck.

[0004] When the on-site mixed explosive truck needs to fill a blast hole with water, if the additive conveying hose is placed outside the semi-finished explosive conveying hose, it greatly increases the risk of the conveying hose getting stuck in the blast hole, especially at the connection between the additive conveying hose and the explosive conveying hose, where it is more likely to get stuck in the blast hole. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a conveying pipeline for on-site mixed explosives in view of the problem in the prior art that when filling a blast hole with water, it is necessary to accurately control the pulling-out speed of both the semi-finished explosive conveying hose and each additive conveying hose simultaneously, the reliability of pulling out the hose is relatively low, and it is easy to affect the explosive filling effect due to inconsistent pulling-out speeds of each conveying hose.

[0006] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0007] A on-site mixed explosive conveying pipeline includes an explosive semi-finished product conveying flexible hose and at least one additive conveying flexible hose. The additive conveying flexible hoses are all laid inside the explosive semi-finished product conveying flexible hose along the length direction of the explosive semi-finished product conveying flexible hose; both ends of any one of the additive conveying flexible hoses respectively extend to the feeding end and the discharging end of the explosive semi-finished product conveying flexible hose, and are respectively fixedly arranged inside the feeding end and the discharging end.

[0008] For the utility model adopting the foregoing technical solution, by laying the additive conveying flexible hose inside the explosive semi-finished product conveying flexible hose, and both ends of the additive conveying flexible hose respectively extend to the feeding end and the discharging end of the explosive semi-finished product conveying flexible hose. When filling the explosive, the explosive semi-finished product and the additive are respectively pumped into the explosive semi-finished product conveying flexible hose and the additive conveying flexible hose from the feeding end. The explosive semi-finished product and the additive will not interfere with each other during the conveying process, and the two converge at the discharging end and are mixed to form an explosive; moreover, since both ends of the additive conveying flexible hose are fixed inside the feeding end and the discharging end of the explosive semi-finished product conveying flexible hose, when pulling out the pipe during water hole charging, the speeds of the additive conveying flexible hose and the explosive semi-finished product conveying flexible hose are the same. Only the pulling-out speed of the explosive semi-finished product conveying flexible hose needs to be controlled, which increases the reliability of pulling out the pipe; compared with the prior art, when charging water holes, it is necessary to accurately control the pulling-out speeds of the explosive semi-finished product conveying flexible hose and each additive conveying flexible hose at the same time, and the reliability of pulling out the pipe is relatively low, and it is easy to affect the explosive filling effect due to inconsistent pulling-out speeds of each conveying flexible hose. When charging water holes, the utility model only needs to control the pulling-out speed of the explosive semi-finished product conveying flexible hose, which increases the reliability of pulling out the pipe and the explosive filling effect is better.

[0009] Furthermore, a feeding joint is provided at the feeding end of the explosive semi-finished product conveying flexible hose. One end of any one of the additive conveying flexible hoses is fixedly arranged on the feeding joint; the feeding joint is provided with an explosive semi-finished product feeding interface and additive feeding interfaces corresponding to the additive conveying flexible hoses one by one; an explosive semi-finished product feeding channel communicating the explosive semi-finished product feeding interface with the explosive semi-finished product conveying flexible hose, and an additive feeding channel communicating the additive feeding interface with the additive conveying flexible hose are arranged inside the feeding joint; by providing the feeding joint, the end of the additive conveying pipe can be fixed and the input of materials can be facilitated. Specifically, when the explosive semi-finished product is pumped into the explosive semi-finished product feeding interface, the explosive semi-finished product will enter the explosive semi-finished product conveying flexible hose through the explosive semi-finished product feeding channel, and when the additive is pumped into the additive feeding interface, the additive will enter the additive conveying flexible hose through the additive feeding channel.

[0010] Furthermore, the feed connector is cylindrical, one end of which is fixedly inserted into the feed end of the semi-finished explosive delivery hose, and the other end of which is open to form the semi-finished explosive feed interface; the additive feed interface is arranged on the side wall of the feed connector, and an L-shaped connecting pipe is arranged in the feed connector, and its two ends are respectively fixedly connected to the inner wall of the feed connector and the end of the additive delivery hose, so that the additive feed interface is connected to the additive delivery hose; the above-mentioned feed connector has a simple structure and is easy to manufacture. It can not only fix the end of the additive delivery pipe, but also facilitate the input of materials.

[0011] Furthermore, a discharge joint is provided at the discharge end of the semi-finished explosive delivery hose, and the discharge joint is cylindrical, one end of which is fixedly inserted into the discharge end of the semi-finished explosive delivery hose; the end of any one of the additive delivery hoses is fixedly arranged on the inner wall of the discharge joint; the above-mentioned discharge joint has a simple structure and is easy to manufacture, and can not only fix the end of the additive delivery pipe, but also facilitate the outflow of materials.

[0012] Furthermore, it also includes a static mixer, and the end of the discharge joint is connected to the feed end of the static mixer; the static mixer can perform final mixing on the combined semi-finished explosives and additives, and the mixed materials enter the blast hole to form explosives after a period of time.

[0013] Furthermore, a nozzle is provided at the end opening of any of the additive delivery hoses; the nozzle can spray the additive into the semi-finished explosive to improve the mixing effect.

[0014] Furthermore, the length of any one of the additive delivery hoses and the length of the explosive semi-finished product delivery hose are both L, and the range of L is 30m-40m; the inner diameter of the explosive semi-finished product delivery hose is D1, and the range of D1 is 45mm-55mm; the inner diameter of any one of the additive delivery hoses is D2, and the range of D2 is 4.5mm-5.5mm.

[0015] Furthermore, there are two additive delivery hoses, namely a first additive delivery hose and a second additive delivery hose; usually two additives need to be added, so two additive delivery hoses are provided.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: the two ends of the additive delivery hose are fixedly laid inside the explosive semi-finished product delivery hose. When charging the water hole, it is only necessary to control the pulling-out speed of the explosive semi-finished product delivery hose, thereby increasing the reliability of pulling-out and achieving a better explosive filling effect; reducing the labor intensity of on-site workers in dragging the delivery hose between blast holes and improving work efficiency; eliminating the hose reel, hydraulic proportional valve and rotary encoder of the additive delivery hose, thereby reducing the production cost of the on-site mixing vehicle; and reducing the risk of the delivery hose getting stuck in the blast hole. Brief Description of the Drawings

[0017] Figure 1 is a schematic structural view of the present utility model;

[0018] Figure 2 is a schematic view of the water hole charging process.

[0019] Reference numerals in the figures: 1 - semi-finished explosive feed interface, 2 - first additive feed interface, 3 - second additive feed interface, 4 - semi-finished explosive conveying hose, 5 - static mixer, 6 - feed joint, 7 - discharge joint, 8 - connecting pipe, 2a - first additive conveying hose, 3a - second additive conveying hose, 2b - first nozzle, 3b - second nozzle, 01 - blast hole, 02 - water column, 03 - explosive, 04 - rock mass. Detailed Description of the Preferred Embodiment

[0020] The present utility model will be described in detail below with reference to the accompanying drawings.

[0021] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0022] This embodiment provides a on-site mixed explosive conveying pipeline, which includes a semi-finished explosive conveying hose 4 and at least one additive conveying hose. The additive conveying hoses are all laid inside the semi-finished explosive conveying hose 4 along the length direction of the semi-finished explosive conveying hose 4; both ends of any one additive conveying hose extend to the feed end and the discharge end of the semi-finished explosive conveying hose 4 respectively, and are fixedly arranged inside the feed end and the discharge end respectively; in this embodiment, there are two additive conveying hoses, namely the first additive conveying hose 2a and the second additive conveying hose 3a;

[0023] The feed end of the semi-finished explosive conveying hose 4 is provided with a feed joint 6, and one end of any one additive conveying hose is fixedly arranged on the feed joint 6; the feed joint 6 is provided with a semi-finished explosive feed interface 1 and additive feed interfaces corresponding to the additive conveying hoses one by one; the feed joint 6 is internally provided with a semi-finished explosive feed channel connecting the semi-finished explosive feed interface 1 and the semi-finished explosive conveying hose 4, and an additive feed channel connecting the additive feed interface and the additive conveying hose;

[0024] The feed joint 6 is cylindrical. One end of it is fixedly inserted into the feed end of the semi-finished explosive conveying hose 4, and the other end is an opening which serves as the semi-finished explosive feed interface 1. The additive feed interface is arranged on the side wall of the feed joint 6. An L-shaped connecting pipe 8 is arranged inside the feed joint 6, and both ends of it are fixedly connected to the inner wall of the feed joint 6 and the end of the additive conveying hose respectively, so that the additive feed interface is communicated with the additive conveying hose.

[0025] There are two additive feed interfaces, namely the first additive feed interface 2 and the second additive feed interface 3. There are two L-shaped connecting pipes 8. One is used to connect the first additive feed interface 2 and the first additive conveying hose 2a, and the other is used to connect the second additive feed interface 3 and the second additive conveying hose 3a.

[0026] The discharge end of the semi-finished explosive conveying hose 4 is provided with a discharge joint 7. The discharge joint 7 is cylindrical. One end of it is fixedly inserted into the discharge end of the semi-finished explosive conveying hose 4. The end of any one of the additive conveying hoses is fixedly arranged on the inner wall of the discharge joint 7.

[0027] It further includes a static mixer 5. The end of the discharge joint 7 is communicated with the feed end of the static mixer 5.

[0028] A nozzle is arranged at the end opening of any one of the additive conveying hoses. A first nozzle 2b is arranged at the end opening of the first additive conveying hose 2a, and a second nozzle 3b is arranged at the end opening of the second additive conveying hose 3a.

[0029] The length of any one of the additive conveying hoses and the length of the semi-finished explosive conveying hose 4 are both L. The range of L is 30m - 40m. The inner diameter of the semi-finished explosive conveying hose 4 is D1, and the range of D1 is 45mm - 55mm. The inner diameter of any one of the additive conveying hoses is D2, and the range of D2 is 4.5mm - 5.5mm. Preferably, L is 35m, D1 is 50mm, and D2 is 5mm.

[0030] The semi-finished explosive conveyed by the semi-finished explosive conveying hose 4 is an emulsion matrix. The first additive conveyed by the first additive conveying hose 2a is a sensitizer, and the second additive conveyed by the second additive conveying hose 3a is an accelerator.

[0031] Such as Figure 2As shown in the figure, when charging the hole with water, the conveying hose 4 of the semi-finished explosive and the static mixer 5 are placed at the bottom of the water column 02 in the blast hole 01. After the charging starts and the liquid level of the explosive 03 exceeds a certain height above the outlet of the static mixer 5, start the control program to automatically pull out the pipe. The pulling speed of the pipe is consistent with the rising speed of the liquid level of the explosive 03. If the pulling speed of the pipe is too fast, it is easy to wrap water in the explosive, causing discontinuous charging, affecting the blasting effect and even misfiring. If the pulling speed of the pipe is too slow, it will cause the conveying hose 4 of the semi-finished explosive and the static mixer 5 to be inserted too deep into the liquid level of the explosive. When pulling out the pipe after charging is completed, the water above the liquid level of the explosive will be sucked into the explosive, affecting the blasting effect.

[0032] For the present utility model adopting the foregoing technical solution, by laying the additive conveying hose inside the conveying hose 4 of the semi-finished explosive, and its two ends respectively extend to the feeding end and the discharging end of the conveying hose 4 of the semi-finished explosive. When filling the explosive, the semi-finished explosive and the additive are respectively pumped into the conveying hose 4 of the semi-finished explosive and the additive conveying hose from the feeding end. The semi-finished explosive and the additive will not interfere with each other during the conveying process, and the two converge at the discharging end to form an explosive; moreover, since the two ends of the additive conveying hose are fixed inside the feeding end and the discharging end of the conveying hose 4 of the semi-finished explosive, when pulling out the pipe during water hole charging, the pulling speed of the additive conveying hose and the conveying hose 4 of the semi-finished explosive is the same. Only the pulling speed of the conveying hose 4 of the semi-finished explosive needs to be controlled, which increases the reliability of pulling out the pipe; compared with the prior art, when charging the water hole, it is necessary to accurately control the pulling speed of the conveying hose of the semi-finished explosive and each additive conveying hose at the same time, and the reliability of pulling out the pipe is relatively low, and it is easy to affect the explosive filling effect due to inconsistent pulling speeds of each conveying hose. In the present utility model, when charging the water hole, only the pulling speed of the conveying hose of the semi-finished explosive needs to be controlled, which increases the reliability of pulling out the pipe and the explosive filling effect is better; at the same time, it reduces the labor intensity of the on-site operators dragging the medicine conveying hose between the blast holes and improves the operation efficiency; cancels the hose reel, hydraulic proportional valve, rotary encoder, etc. of the additive conveying hose, reducing the production cost of the on-site mixing truck; reducing the risk of the conveying hose getting stuck in the blast hole.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A pipeline for on-site mixed loading explosives, comprising an explosive semi-finished product conveying flexible hose (4) and at least one additive conveying flexible hose, characterized in that: The additive delivery hoses are all laid inside the semi-finished explosive delivery hose (4) along the length direction of the semi-finished explosive delivery hose (4); both ends of any one of the additive delivery hoses extend to the feed end and the discharge end of the semi-finished explosive delivery hose (4), and are respectively fixedly arranged inside the feed end and the discharge end.

2. The on-site mixed explosive delivery pipeline according to claim 1, characterized in that: The feed end of the semi-finished explosive delivery hose (4) is provided with a feed joint (6), and one end of any one of the additive delivery hoses is fixedly arranged on the feed joint (6); the feed joint (6) is provided with a semi-finished explosive feed interface (1) and additive feed interfaces corresponding to the additive delivery hoses one by one; the feed joint (6) is internally provided with a semi-finished explosive feed channel connecting the semi-finished explosive feed interface (1) and the semi-finished explosive delivery hose (4), and an additive feed channel connecting the additive feed interface and the additive delivery hose.

3. The on-site mixed explosive conveying pipeline according to claim 2, wherein: The feed joint (6) is cylindrical, one end of which is fixedly inserted into the feed end of the semi-finished explosive delivery hose (4), and the other end opening is the semi-finished explosive feed interface (1); the additive feed interfaces are arranged on the side wall of the feed joint (6), and the feed joint (6) is internally provided with an L-shaped connecting pipe (8), the two ends of which are respectively fixedly connected to the inner wall of the feed joint (6) and the end of the additive delivery hose, so that the additive feed interface is communicated with the additive delivery hose.

4. The on-site mixed explosive conveying pipeline according to claim 1, characterized in that: The discharge end of the semi-finished explosive delivery hose (4) is provided with a discharge joint (7), the discharge joint (7) is cylindrical, and one end of it is fixedly inserted into the discharge end of the semi-finished explosive delivery hose (4); the end of any one of the additive delivery hoses is fixedly arranged on the inner wall of the discharge joint (7).

5. The on-site mixed explosive delivery pipeline according to claim 4, wherein: It further includes a static mixer (5), and the end of the discharge joint (7) is communicated with the feed end of the static mixer (5).

6. The on-site mixed explosive conveying pipeline according to claim 1, wherein: A nozzle is provided at the end opening of any one of the additive delivery hoses.

7. The on-site mixed explosive conveying pipeline according to claim 1, wherein: The length of any one of the additive delivery hoses and the length of the semi-finished explosive delivery hose (4) are both L, and the range of L is 30m to 40m; the inner diameter of the semi-finished explosive delivery hose (4) is D1, and the range of D1 is 45mm - 55mm; the inner diameter of any one of the additive delivery hoses is D2, and the range of D2 is 4.5mm - 5.5mm.

8. The on-site mixed explosive conveying pipeline according to claim 1, wherein: There are two additive delivery hoses, namely the first additive delivery hose (2a) and the second additive delivery hose (3a).

Images