Blast hole protection device for surface blasting charge operation

Abstract

The utility model provides a blast hole protection device for surface blasting charge operation. The blast hole protection device comprises a hole protection plate (1), a handle (2) and a funnel hole (3). Two symmetrically-distributed handles are arranged at the top of a hole protection plate of the device, a funnel hole is formed in the middle of the hole protection plate, and an explosive injection funnel is arranged at the bottom of the hole protection plate. The first detonator tail line gap is located on a square plate of the center line of the hole protection plate, the explosive injection funnel is in a conical barrel shape, and the side wall of the explosive injection funnel is provided with a second detonator tail line gap aligned with the first detonator tail line gap. The device is used for protecting the blast hole and ensuring the safety of blasting operation.

Description

Technical Field

[0001] The present application belongs to the field of blasthole protection and charging equipment used in blasting operations, and relates to a blasthole protection device for open-air blasting charging operations. Background Art

[0002] In traditional open-pit blasting operations, blasthole protection measures are typically simple, relying primarily on manual covering and securing with materials such as straw mats and sandbags. However, this traditional method has numerous drawbacks, including low efficiency, poor safety, and ineffective sealing of the blastholes. Furthermore, the lack of effective protective devices makes it difficult to effectively control environmental pollution and noise at blasting sites.

[0003] In response to the above pain points, patent application publication CN107131807A proposed an auxiliary protection device for mine blasthole filling, which is mainly composed of a cylindrical protective cover, a protective tube, and a fixed bracket. The cylindrical protective cover with an edge limit device is stuck in the mouth of the blasthole, and a protective tube is provided inside the cylindrical protective cover. The fixed bracket connects this protective tube and the cylindrical protective cover. This device improves the safety and efficiency of blasting operations to a certain extent. However, although the device has shown certain advantages in the charging link of open-air blasting charging operations, its functions still have certain limitations. Specifically, the use of a cylindrical protective cover may cause blockage or difficulty in positioning during the insertion process of the blasthole, and the device fails to fully consider the operator's convenience of use and the smooth arrangement of the detonator tail line during the charging operation. Utility Model Content

[0004] The technical problem to be solved by the present application is that the existing technology fails to fully consider the convenience of use for operators and the smooth arrangement of the detonator tail line during the charging operation, resulting in poor convenience and safety in actual application.

[0005] In order to solve the above problems, the present application provides a blasthole protection device for open-air blasting charging operations. The blasthole protection device for open-air blasting charging operations includes: a blasthole protection plate, a handle and a charge injection funnel. A funnel hole is set in the middle of the blasthole protection plate, and a first detonator tail line gap passes through the side wall of the funnel hole to the side wall of the blasthole protection plate. A handle is set on the surface of the blasthole protection plate. The handle is divided into two parts connected to the left and right sides of the surface of the blasthole protection plate with the first detonator tail line gap as the symmetry axis, and the bottom of the blasthole protection plate is connected to the top of the charge injection funnel.

[0006] The blasthole protection device for open-air blasting charging operations provided by the above-mentioned solution of this application realizes effective protection of the blasthole in open-air blasting charging operations through a combination of a hole guard plate, a handle, a charge injection funnel, and a detonator tail line gap limiter. During the charging operation, the operator can conveniently install and remove the blasthole protection device for open-air blasting charging operations through the handle. The design of the funnel hole and the first detonator tail line gap ensures the smooth arrangement of the detonator tail line, while the structure of the charge injection funnel facilitates the smooth flow of the explosive material, thereby significantly improving the charging efficiency. This solves the problem that the existing technology fails to fully consider the operator's convenience of use and the smooth arrangement of the detonator tail line during the charging operation, resulting in poor convenience and safety in actual application.

[0007] In order to cover and protect the blastholes and prevent external factors from posing a safety threat to the blastholes, as an improvement to the blasthole protection device for the above-mentioned open-air blasting charging operation, the blasthole guard plate is made of high-strength material to ensure that it has sufficient protection capabilities.

[0008] To balance charging efficiency and safety, the diameter of the funnel hole is the same as the inner diameter of the top of the injection funnel and smaller than the blasthole diameter. The specific size should be optimized according to actual application requirements.

[0009] In order to help maintain the structural stability of the orifice guard plate, the first detonator tail line gap is set on the side wall of the funnel hole and connected to the side wall of the orifice guard plate to form a channel for the detonator tail line, which is located in the center of the orifice guard plate.

[0010] In order to facilitate the smooth flow of powder into the blasthole during charging, the injection funnel is tightly connected to the bottom of the orifice guard plate, and its inner hole is aligned with the funnel hole. The bottom of the injection funnel is a conical cylindrical structure, and the top hole diameter is larger than the bottom hole diameter.

[0011] In order to ensure the smooth arrangement of the detonator tail wire during the charging process, the second detonator tail wire gap is located on the side wall of the injection funnel, perpendicular to the bottom of the injection funnel, through the top and bottom of the injection funnel, and aligned with the first detonator tail wire gap.

[0012] In actual application, the injection funnel of the blasthole protection device of open-pit blasting charging operation is inserted into the blasthole.

[0013] The technical effects of this application are:

[0014] 1. The present application provides a blasthole protection device for open-air blasting charging operations. This device addresses the problem of blasthole protection and achieves a significant improvement in operating efficiency and an effective reduction in labor intensity through innovative design. The handle design on the surface of the blasthole guard plate allows the operator to quickly and accurately grasp and install the blasthole guard plate. This detail improvement greatly improves operating efficiency, while reducing the operator's physical labor, helping to maintain the operator's good working condition, thereby improving overall work quality and efficiency. The setting of the detonator tail line gap not only ensures the stability of the blasthole guard plate, but also ensures the smooth passage of the detonator tail line. This design significantly improves the reliability and safety of blasting operations and reduces the risk of blasting failure due to detonator tail line problems.

[0015] 2. The present application provides a blasthole protection device for open-air blasting charging operations, including a conical cylindrical design of the injection funnel, which allows the explosives to flow smoothly into the blasthole, greatly improving the charging efficiency. The alignment of the inner hole at the top of the injection funnel with the funnel hole ensures uniform filling of the explosives, avoiding the problem of uneven filling of explosives affecting the blasting effect. The structural simplicity, ease of manufacture, and low manufacturing cost enable it to be widely used in various blasting operations, with good economic efficiency. This economic efficiency helps to reduce the cost of blasting operations and promote the popularization and further development of blasting technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a blasthole protection device for open-air blasting charging operation according to the present application;

[0017] Figure 2 This is a top view of a blasthole protection device for open-air blasting charging operations according to the present application;

[0018] Figure 3 This is a cross-sectional view of a blasthole protection device for open-air blasting charging operations according to the present application;

[0019] Figure 4 A schematic plan view of a blasthole protection device for open-air blasting charging operation according to the present application being inserted into a blasthole;

[0020] Explanation of the accompanying symbols: 1. hole guard plate; 2. handle; 3. funnel hole; 4. first detonator tail line gap; 5. injection funnel; 6. second detonator tail line gap. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Figures 1 to 3An embodiment of the blasthole protection device for open-air blasting charging operation provided by the present application is illustrated. Figures 1 to 3 The schematic diagram of the blasthole protection device for open-air blasting charging operation includes: a hole guard plate 1, a handle 2 and a drug injection funnel 5. A funnel hole 3 is set in the middle of the hole guard plate 1, and a first detonator tail line gap 4 is passed through the side wall of the funnel hole 3 to the side wall of the hole guard plate 1. A handle 2 is set on the surface of the hole guard plate 1, and the handle 2 is divided into two parts connected to the left and right sides of the surface of the hole guard plate 1 with the first detonator tail line gap 4 as the symmetry axis, and the bottom of the hole guard plate 1 is connected to the top of the drug injection funnel 5.

[0023] In this embodiment, the perforated plate 1 serves as the support frame for the blasthole protection device used in open-pit blasting charging operations. The perforated plate 1 can be made of high-strength material to ensure excellent impact resistance. The perforated plate 1 is provided with handles 2, symmetrically located on the left and right sides of the top of the plate 1, to facilitate installation and removal by the operator. A funnel hole 3 is located in the center of the perforated plate 1, extending through the plate 1 and facilitating smooth charging operations. A first detonator tail slit 4 extends from the sidewall of the funnel hole 3 to the sidewall of the perforated plate 1. This first detonator tail slit 4 is located at the centerline of the square plate, dividing the perforated plate 1 into two symmetrical sections. A charge injection funnel 5 is located at the bottom of the perforated plate 1, with its top connected to the bottom of the plate 1. The charge injection funnel 5 is conical, with a larger top diameter than the bottom diameter, facilitating the smooth flow of powder into the blasthole during charging.

[0024] According to actual application requirements, the diameter of the funnel hole 3 in this embodiment is the same as the inner diameter of the top of the injection funnel 5 and is smaller than the diameter of the blasthole. The specific size is determined according to actual application requirements to ensure the safety and efficiency of the charging operation.

[0025] The first detonator tail line slit 4 is located at the centerline of the square plate, dividing the perforated plate 1 into two symmetrical sections. This design makes the device more stable and easier to operate. The top inner hole of the powder injection funnel 5 is aligned with the funnel hole 3, ensuring that the powder flows smoothly into the blasthole during the charging process.

[0026] The side wall of the injection funnel 5 is provided with a second detonator tail line slit 6 perpendicular to the bottom of the injection funnel 5. The second detonator tail line slit 6 runs through the top and bottom of the injection funnel 5 and is aligned with the first detonator tail line slit 4 to facilitate the installation and fixation of the detonator.

[0027] In such Figure 1 and Figure 4In the illustrated application scenario of inserting the injection funnel 5 of the blasthole protection device for open-air blasting operations into a blasthole, first ensure that the blasthole has been drilled and that the diameter and depth of the hole meet the blasting design requirements. Next, prepare the blasthole protection device for open-air blasting operations. Place the detonator in the blasthole, then insert the injection funnel 5 into the blasthole. Pass the detonator tail through the first detonator tail slit 4 and the second detonator tail slit 6 on the side wall of the injection funnel and secure it securely, ensuring that the detonator tail will not be pulled out or damaged during the blasting process.

[0028] Explosives are loaded into the blasthole through the funnel hole 3. The diameter of the funnel hole 3 is the same as the inner diameter of the top of the injection funnel 5, but smaller than the blasthole diameter. This helps ensure that the explosives can be loaded smoothly into the blasthole without spillage. After the detonator and charge are installed, the blasthole is inspected to ensure that no debris or moisture has entered the blasthole, which could affect the blasting effect. Finally, the blasthole protection device for open-air blasting charging operations is removed.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A blasthole protection device for open-air blasting charging operation, characterized in that: include: A hole guard plate (1), wherein a handle (2) is provided on the upper surface of the hole guard plate (1), and two handles (2) are symmetrically distributed on the left and right sides of the upper surface of the hole guard plate (1); A funnel hole (3) is provided in the middle of the hole guard plate (1), the funnel hole (3) passes through the hole guard plate (1), and a first detonator tail line gap (4) is provided from the side wall of the funnel hole (3) to the side wall of the hole guard plate (1); A medicine injection funnel (5) is arranged on the lower surface of the hole-protecting plate (1), and the top of the medicine injection funnel (5) is connected to the lower surface of the hole-protecting plate (1).

2. The blasthole protection device for open-air blasting charging operation according to claim 1 is characterized in that: The diameter of the funnel hole (3) is the same as the inner diameter of the top of the injection funnel (5), and is smaller than the diameter of the blast hole.

3. The blasthole protection device for open-air blasting charging operation according to claim 1 is characterized in that: The first detonator tail line slit (4) is located on the center line of the square plate, dividing the hole protection plate (1) into two symmetrical parts.

4. The blasthole protection device for open-air blasting charging operation according to claim 1 is characterized in that: The injection funnel (5) is in a conical cylindrical shape, and the top aperture is larger than the bottom aperture.

5. The blasthole protection device for open-air blasting charging operation according to claim 4 is characterized in that: The top inner hole of the injection funnel (5) is aligned and connected with the funnel hole (3).

6. The blasthole protection device for open-air blasting charging operation according to claim 5 is characterized in that: The side wall of the injection funnel (5) is provided with a second detonator tail line slit (6) perpendicular to the bottom of the injection funnel (5).

7. The blasthole protection device for open-air blasting charging operation according to claim 6 is characterized in that: The second detonator tail line slit (6) passes through the top and bottom of the injection funnel (5) and is aligned with the first detonator tail line slit (4).

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