Loading chute unbalance loading prevention device for rapid loading station

Abstract

The utility model discloses a loading chute unbalance loading prevention device for a rapid loading station, which relates to the field of mining transportation, is mounted at the discharge tail end of the whole loading chute and comprises a coal scraping plate and a side skirt plate, and the coal scraping plate is of a local double-trapezoid structure and is mounted at the front end of the side skirt plate; the side skirt plates are arranged on the two sides of the coal scraping plate, the side skirt plates are obliquely arranged from top to bottom and contract inwards, and materials are collected in the falling process of the materials, so that impact on the two sides is reduced. The width of the coal scraping plate is locally reduced, and the coal scraping plate is arranged to be of a local double-trapezoid structure, so that the central point of the loading chute of the rapid loading station is changed, the falling point of materials in the unloading process of the loading chute is kept consistent with the center of a carriage, the problems of unbalance loading and material sprinkling are solved, secondary coal leveling is not needed, and the loading efficiency is improved; the side apron boards are retracted inwards, so that the materials can be received in the falling process, and the impact on the carriage and the two sides of the chute is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of mining transportation, and particularly relates to a loading chute anti-unbalanced loading device for a rapid loading station. BACKGROUND

[0002] The chute is a open ditch for self-transportation of mine rock by digging terrain. It is mainly applied to small open-pit mines. In large and medium-sized open-pit mines, the chute is often combined with a chute shaft. The chute can be arranged within the mining area or outside the mining area. The longitudinal slope of the ditch is greater than the natural angle of repose of the mine rock, generally 40°-55°. The length of the ditch is tens of meters to more than 100 meters, and the cross section is semicircular. The size of the cross section depends on the size of the mine rock and the amount of the mine rock. When the chute is used alone, a transfer device is arranged at the lower part of the ditch, which is usually a hopper. The upper part of the ditch is provided with an unloading platform (see open-pit mine chute transportation). The most common problem in the application of the chute is that the mine rock falls off, which is mainly related to the high content of fine ore and high water content. It is especially prone to occur in the rainy season. Therefore, drainage ditches should be arranged on both sides of the ditch to prevent water from flowing into the chute.

[0003] The rapid loading station usually selects a swing chute as the loading chute. During work, unbalanced loading of the loading chute will cause coal to fall off to the side of the train compartment and the ground. The loading process and the end of loading need to clean the spilled coal, which affects the time of external transportation up to 20h / month, and seriously restricts the efficiency of external transportation. The root cause of this phenomenon is that the center line of the train track and the center line of the chute are not on the same center line, which causes loading deviation during the loading process, increases the cleaning workload and the time of cleaning the accumulated coal in the compartment.

[0004] Therefore, solving the problem of unbalanced loading of the chute in the rapid loading station becomes the key to improving the efficiency of coal external transportation. CONTENT OF THE UTILITY MODEL

[0005] In view of the above problems in the prior art, the utility model provides a loading chute anti-unbalanced loading device for a rapid loading station, which can ensure the loading quality and avoid unbalanced loading and material spillage under the condition of keeping the loading speed unchanged, thereby reducing the cleaning workload and the cleaning time of the accumulated coal, improving the overall transportation efficiency, and effectively solving the above technical problems in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A loading chute anti-unbalanced loading device for a rapid loading station is installed at the discharge end of the entire loading chute, which comprises a coal scraping plate and a side skirt plate. The coal scraping plate is a local double trapezoidal structure and is installed at the front end of the side skirt plate. The side skirt plate is arranged on both sides of the coal scraping plate. The side skirt plate is inclined from top to bottom and is inwardly contracted. The material is collected during the falling process, thereby reducing the impact on both sides.

[0008] As a further implementation manner, a discharge plate is mounted at the rear end of the side skirt plate, the bottom end of the discharge plate is higher than the bottom end of the coal scraping plate, and the discharge plate is used for material spraying at the tail of the loading chute, so that the impact on the rear end discharge plate can be reduced when the material is discharged, and the stability of the device as a whole during loading is improved.

[0009] As a further implementation manner, a rubber plate is fixedly mounted at the outer side of the side skirt plate, so as to reduce the impact of the material on the side skirt plate.

[0010] As a further implementation manner, the rubber plate is detachably connected with the side skirt plate through a pressing strip and a bolt, so that the direct contact with the carriage can be avoided.

[0011] As a further implementation manner, the rubber plate is made of synthetic rubber, and has good deformation and impact resistance.

[0012] As a further implementation manner, the side skirt plate is welded with the coal scraping plate.

[0013] As a further implementation manner, a chute flange is mounted at the top of the side skirt plate, the chute flange is made of a steel plate, and a plurality of bolt holes are formed in the chute flange and are uniformly distributed for connecting an outer chute.

[0014] As a further implementation manner, the width of the coal scraping plate is 1420-1440mm, so that the coal can be prevented from being spilled due to too large width while ensuring the loading efficiency.

[0015] As a further implementation manner, the inwardly converging angle of the side skirt plate is 19°-22°.

[0016] As a further implementation manner, the materials of the coal scraping plate, the side skirt plate and the discharge plate are all Q235 steel.

[0017] By adopting the above technical scheme, the present application has the following beneficial effects:

[0018] 1. The present application changes the center point of the loading chute of the rapid loading station by reducing the width of the coal scraping plate and setting the coal scraping plate as a local double trapezoidal structure, so that the falling point of the material during the discharging process of the loading chute is consistent with the center of the carriage, the problems of unbalanced load and spilled material are solved, the coal needs not to be leveled twice, and the loading efficiency is improved; while adjusting the structure and width of the coal scraping plate, the angle of the side skirt plate is adaptively adjusted, so that the material falling process can collect the material and reduce the impact on the carriage and the two sides of the chute.

[0019] 2、The utility model discloses a flexible material's rubber plate is fixedly installed on the outside of side apron, can reduce the impact of material falling to both sides apron, and the rubber plate is installed on the side apron through the pressing strip and bolt, avoids the possibility that rigid side apron and coal scraping plate directly contact the carriage, prevents the friction from producing the spark in the carriage and ignites the coal, also avoids the chute and the car contact and produce the accident of collision, and moreover, the damaged rubber plate is convenient to replace. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings accompanying the specification of this utility model form a part of the disclosure, serve to provide further understanding of the utility model, and together with the specification explain the utility model. The use of the same reference numerals in different drawings indicates similar or identical components.

[0021] Figure 1 It is the overall structure schematic diagram of the utility model;

[0022] Figure 2 It is the loading site schematic diagram before the utility model is applied;

[0023] Figure 3 It is the loading site schematic diagram after the utility model is applied.

[0024] In the drawing: 1, coal scraping plate;2, side apron;3, unloading plate;4, chute flange;5, pressing strip;6, rubber plate;7, bolt. DETAILED DESCRIPTION

[0025] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the utility model. Unless otherwise indicated, all technical and scientific terms used in the utility model have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs.

[0026] It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form, and in addition, it should be understood that when the terms "comprise" and / or "include" are used in the specification, they mean the presence of a feature, step, operation, device, component and / or their combination. Based on the examples in the utility model, all other examples obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the utility model.

[0027] Example one

[0028] In a typical embodiment of the present application, a rapid loading station is provided with a loading chute anti-unbalanced load device, which is installed at the discharge end of the entire loading chute to ensure smooth loading. Figures 1-3As shown, including the coal plate 1 and side skirt 2, the coal plate 1 is partially double trapezoidal structure, installed in the front end of the side skirt 2, coal plate 1 in the height direction to the inside tilt a certain angle, to avoid the material spilled out of the car. The side skirt 2 is provided on both sides of the coal plate 1, side skirt 2 from top to bottom tilt and shrink inward, so that the material falling process can be collected to reduce the impact on both sides.

[0029] Specifically, to solve the existing loading chute material falling point and the center line of the train track and car is not consistent with the existing loading chute, the need for secondary coal, increase the cleaning workload and parking cleaning coal time and other problems, the embodiment of the rapid loading station loading chute for partial reconstruction. First change the shape of the coal plate and size, such as Figure 1 As shown, the coal plate 1 is set to a partially double trapezoidal profile structure, which can be assembled with the side skirt to ensure the stability of the entire short section structure. At the same time, in this embodiment, the width of the coal plate is reduced, and the width of the coal plate 1 is adjusted from the traditional 1920mm to 1420-1440mm, which can avoid coal spillage caused by excessive width while ensuring loading efficiency. The coal plate has a material falling center point in the width direction, which is located 40-50mm away from the middle of the width. Taking the coal plate width of 1440mm as an example, the distance between the material falling center point and the two side edges is 770mm and 670mm respectively, so that the material falling point and the car center remain consistent during the unloading process of the loading chute, effectively solving the problems of uneven load and material spillage, and eliminating the need for secondary coal leveling, greatly improving the loading efficiency of coal and other materials.

[0030] Secondly, the side skirt is adaptively reconstructed in this embodiment. After changing the shape and size of the coal plate, the installation angle of the two side skirts is adjusted. As shown in Figure 1 The side skirt 2 is inclined from top to bottom and shrinks inward by 19°-22°, so that the material falling process can be collected to reduce the impact on both sides. In this embodiment, the side skirt is welded to the coal plate.

[0031] Considering that the outer side of the unloading chute is easy to touch the train car during unloading, causing scratches, sparks into the car and igniting the coal, and also avoiding the direct contact between the chute and the car causing accidents. In this embodiment, a flexible rubber plate 6 is fixedly installed on the outer side of the lower part of the side skirt 2. The rubber plate 6 is made of synthetic rubber material, which has good deformation and impact resistance, and can avoid the direct contact between the rigid side skirt or coal plate and the transport car, reducing the impact on the car. As shown in Figure 1 The pressing strip 5 is installed on the top of the rubber plate 6, and the bolt 7 passes through the bolt holes of the pressing strip 5 and the rubber plate in turn and is connected with the side skirt 2, so as to fix the rubber plate 6 on the outer side of the side skirt 2, and the rubber plate can be replaced conveniently after a long time of use.

[0032] As Figure 1 shown, the rear end of the side skirt plate 2 is fixedly installed with a discharging plate 3, which is opposite to the coal scraping plate 1 in position and is used for short-circuiting and closing the entire chute. The bottom end of the discharging plate 3 is higher than the bottom end of the coal scraping plate 1, which is used for material spraying at the tail of the loading chute and can reduce the impact on the rear discharging plate while guiding the material discharging, thereby improving the stability of the device as a whole during the loading process. In the embodiment, the discharging plate is welded to the side skirt plate.

[0033] In addition, the top of the side skirt plate 2 is installed with a chute flange 4, which is made of a steel plate with a thickness of 20 mm, and a plurality of bolt holes are arranged on the chute flange 4 for connecting other parts of the entire loading chute.

[0034] In the embodiment, the materials of the coal scraping plate, the side skirt plate and the discharging plate are all Q235 steel.

[0035] The loading chute anti-deviation device of the embodiment has a simple structure, is stable and reliable, and compared with the structure before the improvement, as shown in the figure, Figures 2-3 by improving the loading chute, the effective loading time can be increased by 20 hours per month, which greatly improves the loading and external transportation efficiency and provides reliable support for maintenance and external transportation.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them, and those skilled in the art should understand that the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A loading chute anti-eccentric loading device for a rapid loading station, installed at the discharge end of the entire loading chute, characterized in that: It includes a coal scraper and a side skirt. The coal scraper is a partial double trapezoidal structure and is installed at the front end of the side skirt. The side skirt is arranged on both sides of the coal scraper. The side skirt is tilted from top to bottom and retracted inward, collecting the material during the falling process to reduce the impact on both sides.

2. The anti-eccentric loading device for a loading chute used in a rapid loading station according to claim 1, characterized in that: A discharge plate is installed at the rear end of the side skirt plate, and the bottom end of the discharge plate is higher than the bottom end of the coal scraping plate.

3. The anti-eccentric loading device for a loading chute used in a rapid loading station according to claim 1, characterized in that: A rubber plate is fixedly installed on the outer side of the side skirt plate.

4. The anti-eccentric loading device for a loading chute used in a rapid loading station according to claim 3, characterized in that: The rubber plate is detachably connected to the side skirt plate through pressure strips and bolts.

5. The anti-eccentric loading device for a loading chute used in a rapid loading station according to claim 3, characterized in that: The rubber plate is made of synthetic rubber.

6. The anti-eccentric loading device for a loading chute used in a rapid loading station according to claim 1, characterized in that: The side skirt plate is welded to the coal scraper plate.

7. The anti-eccentric loading device for a loading chute used in a rapid loading station according to claim 1, characterized in that: A chute flange is installed on the top circumference of the side skirt plate. The chute flange is made of steel plate. A plurality of evenly distributed bolt holes are opened on the chute flange for connecting the outer chute.

8. The anti-eccentric loading device for a loading chute used in a rapid loading station according to claim 1, characterized in that: The width of the coal scraper is 1420-1440 mm.

9. The anti-eccentric loading device for a loading chute used in a rapid loading station according to claim 1, characterized in that: The inward contraction angle of the side skirt panels is 19°-22°.

10. The anti-eccentric loading device for a loading chute used in a rapid loading station according to claim 2, characterized in that: The materials of the coal scraper, side skirt and discharge plate are all Q235 steel.

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