Automatic hole filling machine for open pit blasting

Abstract

The application discloses an open blasting automatic feeding hole filling machine, relates to the technical field of blasting equipment, and improves the filling sand grain size control and filling mode, improves conveying efficiency, and reduces detonator lead abrasion, and comprises a walking mechanism, one end of the walking mechanism is rotationally connected with a scraper assembly, a stirring tank is arranged on the walking mechanism in an inclined mode, and a feeding port of the stirring tank is located on one side of the scraper assembly; the scraper assembly comprises a mounting bracket and a scraper; the mounting bracket is rotationally connected at one end of the walking mechanism; the scraper is rotationally connected at the other end of the mounting bracket; the opening end of the scraper is fixedly provided with a screen; the bottom of the scraper is provided with a discharge port, the discharge port corresponds to the feeding port when the scraper is rotationally lifted up from the bottom; the stirring tank further comprises a discharge port, and the discharge port is connected with a hole filling flow guide channel.

Description

Technical Field

[0001] This utility model relates to the field of blasting equipment technology, specifically to an automatic feeding and filling machine for open-pit blasting. Background Technology

[0002] In numerous engineering fields, including open-pit mining, airport construction, and large-scale industrial site leveling, deep-hole blasting technology is highly regarded for its unique position and significant technical and economic benefits. With the continuous innovation and development of large-scale machinery and blasting materials, blasting technology has become increasingly mature and sophisticated, and people are increasingly recognizing the outstanding advantages of deep-hole blasting in improving economic efficiency, accelerating project progress, and ensuring project quality.

[0003] In actual blasting operations, deep-hole blasting is a common type of blasting, which includes the following steps: processing of detonating charges, loading of explosives, filling, networking, blasting warning, and detonation; when filling the blast holes, rock debris generated from drilling within the site is usually used directly for filling.

[0004] However, the following problems exist: if the particle size of the filler material is too large, there may be too many gaps in the filling process, resulting in insufficient compaction; if the particle size of the filler material is too large, it may easily break the detonator lead wire or damage the protective layer of the detonator lead wire during the filling process; at the same time, the existing filling operation uses traditional tools such as shovels and spades for hole filling, which has problems such as large workload, high labor intensity, low overall operation efficiency, and poor occupational health and safety of personnel due to the poor working environment. Therefore, there is an urgent need for a hole filling machine with a high degree of automation. Utility Model Content

[0005] I. Technical problems to be solved

[0006] This utility model addresses the shortcomings of existing technologies by proposing an automatic feeding and filling machine for open-pit blasting. By improving the control of the filling material particle size and the filling method, it enhances the conveying efficiency and reduces the wear of the detonator lead wire.

[0007] II. Specific Technical Solutions

[0008] An automatic feeding and filling machine for open-pit blasting includes a traveling mechanism. A bucket assembly is rotatably connected to one end of the traveling mechanism. A mixing tank is inclinedly mounted on the traveling mechanism, with the feed inlet of the mixing tank located on one side of the bucket assembly. The bucket assembly includes a mounting bracket and a bucket. The mounting bracket is rotatably connected to one end of the traveling mechanism. The bucket is rotatably connected to the other end of the mounting bracket. A screen is fixedly mounted at the open end of the bucket. A discharge port is provided at the bottom of the bucket, which corresponds to the feed inlet when the bucket is rotated and raised from the bottom. The mixing tank also includes a discharge port connected to a filling guide channel.

[0009] Implementation principle and working principle:

[0010] In this scheme, the material is first screened and fed, and then the bucket digs up the material: the equipment moves to the material pile, and the bucket digs down with the help of the mounting bracket; screen filtration: when the material enters the bucket, the screen intercepts larger gravel particles, leaving only qualified fine material in the bucket; then the bucket is tilted and aligned: the mounting bracket rotates upward at the front end of the traveling mechanism, driving the bucket to rotate synchronously; when the bucket rises to the set height, its bottom discharge port automatically aligns with the feed port of the mixing tank. This spatial positioning design eliminates manual transfer and improves efficiency; gravity unloading into the tank: fine material falls freely into the feed port of the mixing tank through the discharge port; the inclined mixing tank uses the slope to allow the material to slide naturally to the middle of the tank; then, while mixing and stirring, the gravel is discharged and directly reaches the blast hole through the filling guide channel; the filling guide channel is a flexible hose or a rigid inclined groove that can extend to the borehole opening; this integrated design avoids manual segmented operation and reduces the risk of detonator wires being trampled and damaged.

[0011] Preferably, a material collection hopper is provided on the outer side of the discharge port, the inlet end of the material collection hopper is connected to the discharge port, and a discharge auger is provided on the inner side of the material collection hopper; the discharge end of the material collection hopper is connected to the filling guide channel; the beneficial effect of this preferred embodiment is that the auger pushes the filler material at a uniform speed and flexibly, avoiding free fall impact on the detonator lead wire, and the rotating pressure of the auger squeezes the filler material, eliminating voids in the hole, while the rotation speed is adjustable to adapt to different borehole depths.

[0012] Preferably, a guide channel is provided on the bottom side of the discharge port, and the width of the free end of the guide channel gradually narrows. A sealing plate is rotatably connected to the upper side of the bottom of the discharge port, and the sealing plate is used to seal the guide channel. The beneficial effect of this preferred embodiment is that the narrowed guide channel restricts the flow direction of materials and avoids dust and spillage during discharge. When the sealing plate is closed, it completely covers the guide channel to prevent material leakage during transportation.

[0013] Preferably, a first telescopic rod is rotatably connected to the sealing plate, and the first telescopic rod is located on the side opposite to the guide channel; the other end of the first telescopic rod is rotatably connected to the mounting bracket; the beneficial effect of this preferred embodiment is that the first telescopic rod drives the sealing plate to open and close, which is simple to operate, and the stroke pressure of the first telescopic rod ensures that the sealing plate fits tightly against the guide channel and adapts to material impact.

[0014] Preferably, a second telescopic rod is rotatably connected to the walking mechanism; the other end of the second telescopic rod is rotatably connected to the mounting bracket; the advantage of this preferred embodiment is that by adjusting the pitch angle of the mounting bracket, it can adapt to material piles and unloading positions at different heights, thereby improving terrain adaptability.

[0015] Preferably, a third telescopic rod is rotatably connected to the outer side of the bucket; the other end of the third telescopic rod is rotatably connected to the mounting bracket; the beneficial effect of this preferred embodiment is that the bucket tilting angle can be independently controlled, so that the material is shaken evenly on the screen, accelerating the separation of fine materials and reducing the retention of large particles.

[0016] Preferably, a fourth telescopic rod is rotatably connected to the walking mechanism, with the other end of the fourth telescopic rod rotatably connected to the side of the mixing tank away from the bucket assembly; the beneficial effect of this preferred embodiment is that by adjusting the tilt angle of the mixing tank, the discharge direction of the guide channel can be changed, and the material can be accurately aligned with the inclined or deep blast holes.

[0017] Preferably, the traveling mechanism is also equipped with a control room; the control room is located on one side of the mixing tank, and is used to control the traveling mechanism, the bucket assembly, and the mixing tank; several image acquisition modules are arranged around the traveling mechanism; the image acquisition modules are electrically connected to the control room; the control room is also electrically connected to a mobile control terminal, which is used to control the traveling mechanism, the bucket assembly, and the mixing tank; the advantages of this preferred embodiment are that the image modules identify the location of the blast holes and automatically plan the equipment's traveling path; the automation system reduces the requirements for skilled operators, and the mobile control terminal can remotely control the device, away from the blasting point, resulting in a higher safety factor.

[0018] The beneficial effects of this plan are:

[0019] 1. By setting up a screen, large particles are filtered out, allowing fine materials to enter subsequent processes. This ensures dense filling while preventing wear on the detonator leads from large particles, thus ensuring stable detonation current. The discharge auger allows for adjustment of the material output speed and force, making the material enter the blast hole more smoothly.

[0020] 2. By linking the hopper discharge port and the mixing tank inlet, the material transfer efficiency is improved. In conjunction with other components, the automation level of the borehole filling is greatly improved. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the bucket of the open-pit blasting automatic feeding and filling machine of this utility model, laid flat.

[0022] Figure 2 This is a schematic diagram of the bucket lifting mechanism of the open-pit blasting automatic feeding and filling machine of this utility model.

[0023] Figure 3 This is an isometric drawing of the bucket of the open-pit blasting automatic feeding and filling machine of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] Walking mechanism 1, second telescopic rod 101, control room 103, image acquisition module 104, bucket assembly 2, mounting bracket 201, bucket 202, screen 2020, discharge port 2021, guide channel 2022, sealing plate 2023, first telescopic rod 2024, third telescopic rod 2025, mixing tank 3, feed inlet 301, discharge outlet 302, filler guide channel 303, collection hopper 304, fourth telescopic rod 102. Detailed Implementation

[0026] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0027] like Figure 1-3 As shown:

[0028] An automatic feeding and filling machine for open-pit blasting includes: a walking mechanism 1, which can be a chassis, specifically a track or a tire, supporting the movement of the entire machine; a bucket assembly 2, hinged to the front end of the walking mechanism 1, including a mounting bracket 201, which is a double-ended rotating structure, with one end hinged to the walking mechanism 1 and the other end hinged to the bucket 202; wherein, a screen 2020 is fixed on the open side of the bucket 202, the screen having a mesh size of less than 1 cm, and a discharge port 2021 is provided at the bottom of the bucket; in specific implementation, when the bucket 202 is raised, the discharge port 2021 is precisely aligned with the feed inlet 301 of the mixing tank.

[0029] In practice, the mixing tank 3 is tilted and rotated on the left side of the traveling mechanism 1. The feed inlet 301 of the mixing tank 3 is located on one side of the bucket 202 to receive the fine material after screening. At the discharge outlet 302, the material is connected to the filling hole guide channel 303 through the collection hopper 304. The discharge speed is controlled by the discharge auger 3040 built into the collection hopper.

[0030] In practice, a first telescopic rod 2024 is hinged to the sealing plate 2023, and the first telescopic rod 2024 is located on the side opposite to the guide channel 2022; the other end of the first telescopic rod 2024 is hinged to the mounting bracket 201; the first telescopic rod 2024 drives the sealing plate 2023 to open and close, which is simple to operate. The stroke pressure of the first telescopic rod ensures that the sealing plate fits tightly against the guide channel and adapts to material impact; it drives the sealing plate 2023 to open and close the guide channel 2022 and controls the unloading.

[0031] In implementation, a second telescopic rod 101 is hinged to the traveling mechanism 1, and the other end of the second telescopic rod 101 is rotatably connected to the middle of the mounting bracket 201, which facilitates better adjustment of the pitch angle of the mounting bracket 201 to achieve the lifting of the bucket assembly 2; a third telescopic rod 2025 is hinged to the bottom plate of the bucket 202; the other end of the third telescopic rod 205 is rotatably connected to the mounting bracket 201; this setting can independently control the tilting angle of the bucket 202, control the bucket 202 to tilt the screen material, so that the material shakes evenly on the screen 2020, and accelerates the separation of fine materials.

[0032] In implementation, a fourth telescopic rod 102 is rotatably connected to the traveling mechanism 1. It is worth noting that all telescopic rods in this scheme are hydraulic telescopic rods. Specifically, the other end of the fourth telescopic rod 102 is hinged to the side of the mixing tank 3 away from the bucket assembly 2. Adjusting the tilt angle of the mixing tank can change the discharge direction of the guide channel 303, accurately aligning it with the inclined or deep blast holes. A control room 103 is set on the side of the traveling mechanism 1. The control room 103 integrates a microcontroller system, and image acquisition modules 104, specifically cameras, are set around the traveling mechanism 1 to facilitate real-time positioning of blast holes. Data is fed back to the control room 103 for position adjustment of the traveling mechanism 1. Specifically, the control room 103 is also connected to a mobile control terminal via wireless networks such as Bluetooth, GPRS, and Wi-Fi. The mobile control terminal can be a tablet computer or a remote control, which can output control commands to various execution components. It can control the shoveling and discharging of the bucket assembly 2, the position adjustment of the traveling mechanism 1, and the speed adjustment of the mixing tank 3, thereby achieving different speed adjustments and changing the discharge speed of the packing material.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims.

Claims

1. An automatic feeding and filling machine for open-pit blasting, comprising a traveling mechanism (1), one end of which is rotatably connected to a bucket assembly (2), and an inclined mixing tank (3) is provided on the traveling mechanism (1), wherein the feed inlet (301) of the mixing tank (3) is located on the side where the bucket assembly (2) is located; characterized in that: The bucket assembly (2) includes a mounting bracket (201) and a bucket (202); the mounting bracket (201) is rotatably connected to one end of the traveling mechanism (1); the bucket (202) is rotatably connected to the other end of the mounting bracket (201); a screen (2020) is fixedly provided at the open end of the bucket (202); a discharge port (2021) is provided at the bottom of the bucket (202), and when the bucket (202) is rotated and raised from the bottom, the discharge port (2021) corresponds to the feed port (301); the mixing tank (3) also includes a discharge port (302), and the discharge port (302) is connected to a filling guide channel (303).

2. The automatic feeding and filling machine for open-pit blasting according to claim 1, characterized in that: A material collection hopper (304) is also provided on the outside of the discharge port (302). The inlet end of the material collection hopper (304) is connected to the discharge port (302), and a discharge auger is provided on the inside of the material collection hopper (304). The discharge end of the material collection hopper (304) is connected to the filling guide channel (303).

3. The automatic feeding and filling machine for open-pit blasting according to claim 1, characterized in that: A guide channel (2022) is provided on the bottom side of the discharge port (2021). The width of the free end of the guide channel (2022) gradually decreases. A sealing plate (2023) is rotatably connected to the upper side of the bottom of the discharge port (2021). The sealing plate (2023) is used to seal the guide channel (2022).

4. The automatic feeding and filling machine for open-pit blasting according to claim 3, characterized in that: A first telescopic rod (2024) is rotatably connected to the sealing plate (2023). The first telescopic rod (2024) is located on the side away from the guide channel (2022). The other end of the first telescopic rod (2024) is rotatably connected to the mounting bracket (201).

5. The automatic feeding and filling machine for open-pit blasting according to claim 1, characterized in that: A second telescopic rod (101) is rotatably connected to the walking mechanism (1); the other end of the second telescopic rod (101) is rotatably connected to the mounting bracket (201).

6. The automatic feeding and filling machine for open-pit blasting according to claim 1, characterized in that: The outer side of the bucket (202) is rotatably connected to a third telescopic rod (2025); the other end of the third telescopic rod (2025) is rotatably connected to the mounting bracket (201).

7. The automatic feeding and filling machine for open-pit blasting according to claim 1, characterized in that: The walking mechanism (1) is also rotatably connected to a fourth telescopic rod (102), and the other end of the fourth telescopic rod (102) is rotatably connected to the side of the mixing tank (3) away from the bucket assembly (2).

8. The automatic feeding and filling machine for open-pit blasting according to claim 1, characterized in that: The traveling mechanism (1) is also equipped with a control room (103); the control room (103) is located on one side of the mixing tank (3), and the control room (103) is used to control the traveling mechanism (1), the bucket assembly (2) and the mixing tank (3); a number of image acquisition modules (104) are arranged around the traveling mechanism (1); the image acquisition modules (104) are electrically connected to the control room (103); the control room (103) is also electrically connected to a mobile control terminal, which is used to control the traveling mechanism (1), the bucket assembly (2) and the mixing tank (3).

Images