Efficient anti-scattering loading device for fine iron powder

Abstract

The utility model provides an efficient anti-scattering loading device for fine iron powder. The efficient anti-scattering loading device comprises a loading supporting frame and a material receiving hopper fixedly arranged on the upper portion of the loading supporting frame. The loading supporting frame is used for supporting a material receiving hopper on the upper portion of the loading supporting frame, and a vehicle passing channel is formed in the lower portion of the loading supporting frame. The material receiving hopper is used for receiving materials of a crown block grab bucket and guiding the received materials into a truck bucket on the lower portion. The cross section of a main body of the material receiving funnel is rectangular, an inclined feeding port which gradually inclines downwards from the side face corresponding to one long side of the rectangle to the side face corresponding to the other long side of the rectangle is formed in the top of the material receiving funnel, and a rectangular horizontal discharging port is formed in the bottom of the material receiving funnel. Due to the design of the loading supporting frame and the material receiving hopper, the requirement for the operation accuracy of the grab bucket of the crown block is lowered, and the loading working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mine loading equipment, in particular to a high-efficiency anti-spillage loading device for iron ore concentrate. Background Art

[0002] For large-scale modern mines, the first step in exporting iron ore concentrate is its shipment. Currently, the transportation of iron ore concentrate is mainly carried out by heavy trucks, and most of the loading of iron ore concentrate is done in the concentrate bin using overhead crane grabs in conjunction with heavy trucks.

[0003] Due to the operating level of the crane grab bucket operator, the physical properties of iron ore concentrate, and the adaptability of the equipment, some problems occurred during the loading of iron ore concentrate: First, due to the inevitable lack of precision in the longitudinal height, horizontal position, and opening and closing control of the crane grab bucket during loading and unloading, the iron ore concentrate cannot be completely dropped into the bucket, resulting in serious spillage. This not only causes a lot of dust in the concentrate bin, a poor working environment, and affects the occupational health of employees, but also causes a large amount of iron ore concentrate to stick and adsorb on the body of heavy trucks, forming an unfavorable environmental factor during the transportation of concentrate. Secondly, in order to ensure that the iron ore concentrate falls into the bucket to the maximum extent, some crane grab bucket drivers will lower the grab bucket height to unload, which is prone to collision between the grab bucket and the bucket, causing serious shaking of the vehicle, affecting the personal safety of the driver, and forming an unfavorable safety factor. In addition, due to the spillage, the workload and time of cleaning and recycling the iron ore concentrate in the concentrate bin are large, and the effective loading time is shortened, and the loading efficiency is reduced.

[0004] In summary, with the development of large-scale on-site mines, how to avoid the above-mentioned unfavorable factors has become an urgent problem to be solved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an efficient anti-spillage loading device for iron ore concentrate in view of the deficiencies in the prior art, so as to reduce the requirements for the operating accuracy of the overhead crane grab bucket and improve the loading efficiency.

[0006] In order to solve the above technical problems, the present invention includes:

[0007] A high-efficiency anti-spill loading device for iron ore concentrate comprises a loading support frame and a material receiving funnel fixedly arranged on the upper part of the loading support frame; the loading support frame is used to support the material receiving funnel on its upper part and is provided with a vehicle passageway at its lower part, the material receiving funnel is used to receive materials from a crane grab bucket and guide the received materials into a truck bucket below; the main body cross-section of the material receiving funnel is rectangular, and the top of the material receiving funnel is provided with an inclined feed port which gradually inclines downward from the side surface corresponding to one long side of the rectangle to the side surface corresponding to the other long side, and the bottom of the material receiving funnel is provided with a rectangular horizontal discharge port.

[0008] Furthermore, a rectangular material guide groove is provided below the material receiving funnel, and the rectangular upper opening of the material guide groove is fixedly connected to the horizontal discharge port of the material receiving funnel.

[0009] Furthermore, a plurality of built-in cross beams are evenly and fixedly arranged along the length direction at the connection between the horizontal discharge port of the material receiving funnel and the rectangular upper opening of the material guide chute.

[0010] Furthermore, the support frame includes four support column legs distributed in a rectangular shape and two long side beams and two short side beams fixedly arranged in the upper middle part of the four support column legs; the tops of the four support column legs are respectively fixedly connected to the four corners of the inclined feed port of the material receiving funnel.

[0011] Furthermore, the long side cross beam and the short side cross beam are both located at a position flush with the horizontal discharge port of the material receiving funnel, and the long side cross beam and the short side cross beam are connected end to end.

[0012] The beneficial effects of the utility model are:

[0013] Firstly, through the arrangement of the loading support frame and the material receiving funnel, a vehicle passage is formed at the lower part of the loading support frame, and heavy trucks directly drive into the inner side of the loading support frame. The upper part of the material receiving funnel has an inclined feed port with one side higher and the other lower. Such a shape of the inclined feed port can maximize the material receiving area, and the higher side can penetrate into the upper part of the fine powder pool space to form a shielding structure, thereby ensuring the maximum reception of iron ore fine powder and preventing the iron ore fine powder from spilling onto the ground or falling back into the fine powder pool, which greatly reduces the requirements for the operating accuracy of the overhead crane grab bucket and improves the loading efficiency.

[0014] Secondly, when the iron ore concentrate passes through the material receiving funnel and reaches the built-in crossbeam at the discharge port, the built-in crossbeam can prevent the grab bucket from colliding with the vehicle body due to improper human operation. It also plays a role in dispersing the iron ore concentrate, making the material distribution more even and the overall connection of the funnel more stable.

[0015] In addition, the iron ore concentrate material is collected downward through the material guide chute and then introduced into the bucket of the heavy truck. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall elevational schematic diagram of the utility model;

[0017] Figure 2 It is an overall plan schematic diagram of the utility model;

[0018] Figure 3 It is an overall side schematic diagram of the utility model;

[0019] In the figure: 1. Material receiving funnel, 2. Built-in crossbeam, 3. Material guide chute, 4. Long side crossbeam, 5. Short side crossbeam, 6. Support column legs. DETAILED DESCRIPTION

[0020] To facilitate understanding of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Those skilled in the art should understand that the embodiments are only intended to help understand the present invention and should not be considered as specific limitations of the present invention.

[0021] like Figure 1-3 As shown, the utility model provides a high-efficiency anti-spillage loading device for iron ore concentrate, comprising a loading support frame and a material receiving funnel 1 fixedly arranged on the upper part of the loading support frame; the loading support frame is used to support the material receiving funnel 1 on its upper part and form a vehicle passageway at its lower part, the material receiving funnel 1 is used to receive materials from the overhead crane grab bucket and guide the received materials into the truck bucket below; the main body cross-section of the material receiving funnel 1 is rectangular, and the top of the material receiving funnel 1 is provided with an inclined feed port which gradually inclines downward from the side surface corresponding to one long side of the rectangle to the side surface corresponding to the other long side, and the bottom of the material receiving funnel 1 is provided with a rectangular horizontal discharge port.

[0022] A rectangular material guide trough 3 is provided below the material receiving funnel 1 , and a rectangular upper opening of the material guide trough 3 is fixedly connected to a horizontal discharge port of the material receiving funnel 1 .

[0023] A plurality of built-in cross beams 2 are evenly and fixedly arranged along the length direction at the connection between the horizontal discharge port of the material receiving funnel 1 and the rectangular upper opening of the material guide chute 3 .

[0024] The support frame includes four support column legs 6 distributed in a rectangular shape, and two long side beams 4 and two short side beams 5 fixedly arranged in the middle and upper parts of the four support column legs 6; the tops of the four support column legs 6 are respectively fixedly connected to the four corners of the inclined feed port of the material receiving funnel 1. The long side beams 4 and the short side beams 5 are both located at a position flush with the horizontal discharge port of the material receiving funnel 1, and the long side beams 4 and the short side beams 5 are connected end to end.

[0025] The shape and size of the material receiving funnel 1 in the utility model are designed for the QD20t-34.5m overhead crane grab bucket. Figure 2 From the perspective of the material receiving funnel 1, the shape of the material receiving funnel 1 is an isosceles trapezoid that is narrow on the left and wide on the right. Figure 1 From the perspective of the material receiving funnel 1, the shape of the material receiving funnel 1 is an asymmetric inverted trapezoid with the left side low and the right side high, that is, the right part of the inclined feed port is high and long and gradually becomes low and short towards the left part. Such a shape of the inclined feed port maximizes the material receiving area, and the high and long part on the right can penetrate into the upper part of the fine powder pool space to form a shielding structure, ensuring the maximum acceptance of iron ore concentrate and preventing the iron ore concentrate from falling to the ground or falling back into the fine powder pool, which greatly reduces the requirements for the accuracy of the overhead crane grab operation.

[0026] Through parameter research and testing, it is suitable for the general architectural structure, loading and unloading transportation equipment, and production organization mode of large-scale mine concentrate silos. The main parameters of the material receiving funnel 1 include: the upper opening (inclined feed port) is 3000mm high and 8000mm long; the upper opening is 2000mm high and 1267mm long; the lower opening (horizontal discharge port) is 5800mm long and 1600mm wide. The length of the built-in crossbeam 2 is 1600mm. The size of the material guide trough 3 is: 5800mm×1600mm×730mm. The supporting column legs 6 are two 6500mm long and two 7500mm long; the length of the long side crossbeam 4 is 8000mm, and the length of the short side crossbeam 5 is 4000mm.

[0027] The material receiving funnel 1 and the material guide chute 3 are both made of steel plates with a thickness of 12 mm. The supporting column legs 6, the long side beams 4, the short side beams 5 and the built-in beams 2 are all made of angle steel with a specification of 90 mm×90 mm×6 mm.

[0028] The built-in cross beam 2 is arranged at the connection between the material receiving funnel 1 and the material guide trough 3, and three cross beams are evenly arranged along the length direction, and each built-in cross beam 2 is arranged along the left and right directions. The main function of the built-in cross beam 2 is to prevent the grab bucket from colliding with the vehicle body due to improper human operation when the grab bucket is putting the fine powder. At the same time, it also plays the role of diverting the iron fine powder to make the material distribution more uniform, and the overall connection of the material receiving funnel 1 is stable, so as to achieve safe and uniform loading.

[0029] The material guide chute 3 is the vertical downward extension of the material receiving funnel 1. Its main function is to collect the iron ore concentrate from the material receiving funnel 1 and guide the material into the truck bed of a heavy truck, thus finally achieving non-spill loading.

[0030] The supporting column legs 6, the long side beams 4 and the short side beams 5 constitute the load-bearing structure as a whole. Through parameter and experimental research, the loading support frame meets the deadweight of the hopper and the force during loading, and the design height is combined with the downward extension height of the material guide chute 3 to ensure that when the iron ore concentrate falls into the bucket, it is as evenly dispersed and reasonably stacked as possible, thereby improving the loading efficiency.

[0031] N sets of this high-efficiency anti-spillage loading devices for iron ore concentrate are set at intervals of 15 meters outside the fine powder bin and are numbered. Heavy trucks drive under the material guide chute 4 of the corresponding numbered high-efficiency anti-spillage loading device for iron ore concentrate according to the specifications of the iron ore concentrate to be loaded; the overhead crane driver puts the iron ore concentrate into the material receiving funnel 1 by operating the overhead crane and the grab bucket. Since the inclined feed port of the material receiving funnel 1 greatly increases the feeding area relative to the opening of the heavy truck bucket, the requirements for the accuracy of the grab bucket operation are greatly reduced, and the loading efficiency is greatly improved. In addition, the opening of the material receiving funnel 1 close to the high and long side of the fine powder pool penetrates into the fine powder pool in the air, effectively preventing the iron ore concentrate from spilling.

[0032] The iron ore concentrate put into the material receiving funnel 1 enters the material guide chute 4 through the built-in crossbeam 2 and falls into the heavy truck bucket through the material guide chute 4. The built-in crossbeam 2 effectively prevents the grab bucket from colliding with the vehicle when discharging materials, and ensures that the materials fall evenly into the bucket. The material guide chute 4 further constrains the material falling path and further prevents the iron ore concentrate from spilling.

[0033] Through the above-mentioned working process, the utility model realizes the safe and spill-proof loading of iron ore concentrate, and achieves the goal of efficient, safe and environmentally friendly operation of the iron ore concentrate loading work.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient anti-spillage loading device for iron ore concentrate, characterized in that: The invention comprises a loading support frame and a material receiving funnel (1) fixedly arranged on the upper part of the loading support frame; the loading support frame is used to support the material receiving funnel (1) on the upper part thereof and has a vehicle passage formed on the lower part thereof; the material receiving funnel (1) is used to receive materials from a crane grab bucket and guide the received materials into a truck bucket below; the main body cross section of the material receiving funnel (1) is rectangular, and the top of the material receiving funnel (1) is provided with an inclined feed port which gradually inclines downward from the side corresponding to one long side of the rectangle to the side corresponding to the other long side, and the bottom of the material receiving funnel (1) is provided with a rectangular horizontal discharge port.

2. The high-efficiency anti-spillage loading device for iron ore concentrate according to claim 1 is characterized in that: A rectangular material guide groove (3) is provided below the material receiving funnel (1), and the rectangular upper opening of the material guide groove (3) is fixedly connected to the horizontal discharge opening of the material receiving funnel (1).

3. The high-efficiency anti-spillage loading device for iron ore concentrate according to claim 2 is characterized in that: A plurality of built-in cross beams (2) are evenly and fixedly arranged along the length direction at the connection between the horizontal discharge port of the material receiving funnel (1) and the rectangular upper opening of the material guide chute (3).

4. The high-efficiency anti-spillage loading device for iron ore concentrate according to claim 1 is characterized in that: The support frame comprises four support column legs (6) distributed in a rectangular shape, and two long side cross beams (4) and two short side cross beams (5) fixedly arranged at the upper middle part of the four support column legs (6); the tops of the four support column legs (6) are respectively fixedly connected to the four corners of the inclined feed port of the material receiving funnel (1).

5. The high-efficiency anti-spillage loading device for iron ore concentrate according to claim 4 is characterized in that: The long side cross beam (4) and the short side cross beam (5) are both located at a position flush with the horizontal discharge port of the material receiving funnel (1), and the long side cross beam (4) and the short side cross beam (5) are connected end to end.

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