Dust removal device for coal unloading pit

Abstract

The utility model provides a coal unloading pit dust removal device which comprises a protective shed, a dust collection part and an air curtain generation part, the protective shed is arranged above a coal unloading pit of an open pit coal mine in a covering mode, the protective shed is provided with a coal unloading opening, and the coal unloading opening is used for unloading coal into the coal unloading pit; the dust collection part is arranged on the protective shed, the dust collection part corresponds to the coal unloading opening and is located above the coal unloading opening, the dust collection part is provided with a dust collection opening, and the dust collection opening is used for sucking dust-containing airflow; the air curtain generation part is arranged on the protective shed and located on the periphery of the dust collection opening, and the air curtain generation part is used for forming an air curtain to isolate a dust collection area of the dust collection part. A large amount of dust-containing airflow caused when coal is poured into the coal unloading pit is mostly blocked by the protective shed, so that the dust-containing airflow is prevented from leaking; the dust collection part is arranged on the protective shed and is used for sucking dust-containing airflow leaked from the dust collection opening, so that the dust-containing airflow is prevented from polluting the environment; the air curtain generation part is arranged on the periphery of the dust collection opening, and the dust-containing airflow is isolated in the dust collection area of the dust collection part, so that the dust collection part can better suck the dust-containing airflow.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine equipment, in particular to a dust removal device for a coal unloading pit. Background Art

[0002] When dump trucks unload coal into coal unloading pits, a large amount of coal blocks and coal dust instantly rush into the coal unloading pits, squeezing the air at the bottom of the pit to form an upward impact wind flow. At the same time, the wind flow is opposite to the direction of coal unloading, blowing up coal dust and forming an instantaneous high-intensity, high-concentration dust-containing airflow, which has a great impact on the surrounding environment and becomes a disaster factor at the primary crushing station of open-pit coal mines.

[0003] Therefore, a device is needed to remove the dust-laden airflow around the coal discharge port. Utility Model Content

[0004] The utility model provides a dust removal device for a coal unloading pit, so as to solve the problem in the prior art that dust-containing airflow is generated around the coal unloading pit during the coal unloading process and affects the environment.

[0005] In order to solve the above-mentioned problems, the utility model provides a coal unloading pit dust removal device, comprising a protective shed, a dust suction unit and an air curtain generating unit, the protective shed cover is arranged above the coal unloading pit of the open-pit coal mine, the protective shed has a coal unloading port, and the coal unloading port is used to unload coal into the coal unloading pit; the dust suction unit is arranged on the protective shed, the dust suction unit is arranged corresponding to the coal unloading port and is located above the coal unloading port, the dust suction unit has a dust suction port, and the dust suction port is used to suck the dust-containing airflow; the air curtain generating unit is arranged on the protective shed and is located on the periphery of the dust suction port, and the air curtain generating unit is used to form an air curtain to isolate the dust suction area of ​​the dust suction unit.

[0006] With this solution, the protective shed has a coal unloading port, so that the dump truck dumps the coal into the coal unloading pit through the coal unloading port. The protective shed cover is arranged above the coal unloading pit, and the large amount of dust-containing airflow caused by the coal dumping into the coal unloading pit is mostly blocked by the protective shed, so as to prevent the dust-containing airflow from leaking out in large quantities; the dust suction part is arranged on the protective shed, and the dust-containing airflow leaking out from the dust suction port is sucked to prevent the dust-containing airflow from polluting the environment; the air curtain generating part is arranged on the periphery of the dust suction port, and the dust-containing airflow is isolated in the dust suction area of ​​the dust suction part, so that the dust suction part can better suck the dust-containing airflow. The above device can reduce the pollution to the environment caused by coal unloading.

[0007] Furthermore, the air curtain generating part includes an air curtain generator, which is tubular and has an air outlet. The air outlet blows out airflow to form an air curtain. The air curtain generator is tubular and blows out airflow through the air outlet to form an air curtain, thereby blocking the dust-laden airflow. It has a simple structure and is easy to manufacture and install.

[0008] Furthermore, the air outlet includes a plurality of air outlet holes, and the plurality of air outlet holes are spaced apart along the extension direction of the air curtain generator. The plurality of air outlet holes are spaced apart along the extension direction of the air curtain generator, so that the width of the air curtain is the same as the extension direction of the air curtain generator. The interval between two adjacent air outlet holes is not specifically limited, and can be specifically designed and adjusted according to the isolation requirements for dust-laden airflow.

[0009] Furthermore, the air curtain generator is arranged in a ring shape at the periphery of the dust suction port. The air curtain generator is distributed at the periphery of the dust suction port, and the dust suction area of ​​the dust suction port is surrounded to form a negative pressure, so that the dust-containing airflow cannot escape and the dust suction port can better suck the dust-containing airflow.

[0010] Furthermore, the air curtain generator is divided into a first generator and a second generator. The first generator is arranged side by side with the dust suction port. There are two first generators, and the two first generators are respectively arranged on both sides of the dust suction port. The second generator is arranged on the side of the first generator away from the protective shed.

[0011] The first generator is arranged on both sides of the dust suction port, and the second generator is arranged on the side of the first generator away from the protective shed, so that the first generator and the second generator surround the dust suction port to form a dust suction area of ​​the dust suction port, so that the dust-containing airflow escaping from the protective shed is blocked in the dust suction area of ​​the dust suction port.

[0012] Furthermore, the air outlet of the first generator is tilted toward the dust suction port, and the angle between the blowing direction of the first generator and the vertical direction is in the range of 15° to 30°.

[0013] The air outlet of the first generator is tilted toward the dust suction port, so that the air curtain of the first generator is tilted toward the dust suction port, and the air curtain forms a negative pressure under the dust suction port, which is conducive to the dust suction port to suck the dust-laden airflow. The angle between the blowing direction of the first generator and the vertical direction ranges from 15° to 30°. Within this range, the air curtain can better block the dust-laden airflow, and the dust suction area will not be reduced due to a large angle. Specifically, the angle between the blowing direction of the first generator and the vertical direction can be 15°, 20° or 30°.

[0014] Further, the dust collection unit includes a dust collection hood and a dust removal fan, the dust collection hood is connected to the dust removal fan, the dust collection hood has a dust collection port, the dust collection hood has a dust collection port, and the dust removal fan provides negative pressure, so that negative pressure is generated at the dust collection port to suck the dust-containing airflow, thereby preventing the dust-containing airflow from affecting the environment.

[0015] Furthermore, the protective shed includes a shed frame and a dust curtain. The shed frame is arranged above the coal unloading pit, and the dust curtain is hung on the top of the shed frame. The dust curtain is used to prevent dust-containing airflow from escaping.

[0016] The shed is set above the coal unloading pit to support the dust collection part and the air curtain generating part. The dust curtain is hung on the top of the shed to block part of the dusty airflow and reduce the amount of dusty airflow escaping from the protective shed. The protective shed has a simple structure, low manufacturing cost, and is convenient for workers to disassemble and assemble.

[0017] Furthermore, there are multiple coal unloading ports, which are distributed along the circumference of the protective shed. The dust suction part and the air curtain generating part constitute a dust removal assembly. There are multiple dust removal assemblies, and the multiple dust removal assemblies correspond one by one to the multiple coal unloading ports.

[0018] Multiple coal unloading ports are distributed along the circumference of the protective shed, so that coal can be dumped into the coal unloading pit from multiple coal unloading ports. The dust suction part and the air curtain generating part form a dust removal component, so that the dust removal component can remove dust from the coal unloading ports respectively, effectively preventing dust-containing airflow from polluting the environment.

[0019] Furthermore, the coal unloading pit dust removal device also includes a steel frame cantilever, which is arranged on the top of the outer side surface of the protective shed, and the steel frame cantilever is used to fix the dust suction part and the air curtain generating part.

[0020] The steel frame cantilever is arranged on the top of the outer side surface of the protection shed, and the dust suction part and the air curtain generating part are fixed on the protection shed, thereby ensuring the connection strength between the protection shed and the dust suction part and the air curtain generating part.

[0021] By applying the technical solution of the utility model, a coal unloading pit dust removal device is provided, comprising a protective shed, a dust suction unit and an air curtain generating unit, wherein the protective shed cover is arranged above the coal unloading pit of an open-pit coal mine, the protective shed has a coal unloading port, and the coal unloading port is used to unload coal into the coal unloading pit; the dust suction unit is arranged on the protective shed, the dust suction unit is arranged corresponding to the coal unloading port and is located above the coal unloading port, the dust suction unit has a dust suction port, and the dust suction port is used to suck the dust-containing airflow; the air curtain generating unit is arranged on the protective shed and is located at the periphery of the dust suction port, and the air curtain generating unit is used to form an air curtain to isolate the dust suction area of ​​the dust suction unit. With this solution, the protective shed has a coal unloading port, so that the dump truck dumps the coal into the coal unloading pit through the coal unloading port. The protective shed cover is arranged above the coal unloading pit, and the large amount of dust-containing airflow caused by the coal dumping into the coal unloading pit is mostly blocked by the protective shed, so as to prevent the dust-containing airflow from leaking out in large quantities; the dust suction part is arranged on the protective shed, and the dust-containing airflow leaking out from the dust suction port is sucked to prevent the dust-containing airflow from polluting the environment; the air curtain generating part is arranged on the periphery of the dust suction port, and the dust-containing airflow is isolated in the dust suction area of ​​the dust suction part, so that the dust suction part can better suck the dust-containing airflow. The above device can reduce the pollution to the environment caused by coal unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0023] Figure 1 A schematic structural diagram of a coal unloading pit dust removal device provided in an embodiment of the utility model is shown.

[0024] The above drawings include the following reference numerals:

[0025] 10. Protective shed;

[0026] 11. Scaffolding;

[0027] 12. Dust curtain;

[0028] 13. Coal unloading port;

[0029] 20. Dust collection unit;

[0030] 21. Dust hood;

[0031] 30. Air curtain generating unit;

[0032] 31. Air curtain generator;

[0033] 311, first generator;

[0034] 312, second generator;

[0035] 40. Steel frame cantilever. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0037] like Figure 1 As shown, an embodiment of the utility model provides a coal unloading pit dust removal device, comprising a protective shed 10, a dust suction unit 20 and an air curtain generating unit 30. The protective shed 10 is arranged above the coal unloading pit of an open-pit coal mine. The protective shed 10 has a coal unloading port 13, which is used to unload coal into the coal unloading pit; the dust suction unit 20 is arranged on the protective shed 10, and the dust suction unit 20 is arranged corresponding to the coal unloading port 13 and is located above the coal unloading port 13. The dust suction unit 20 has a dust suction port, which is used to suck dust-containing airflow; the air curtain generating unit 30 is arranged on the protective shed 10 and is located on the periphery of the dust suction port. The air curtain generating unit 30 is used to form an air curtain to isolate the dust suction area of ​​the dust suction unit 20.

[0038] In this solution, the protective shed 10 has a coal unloading port 13, so that the dump truck dumps the coal into the coal unloading pit through the coal unloading port 13. The protective shed 10 is set above the coal unloading pit. Most of the large amount of dust-containing airflow caused by the coal dumping into the coal unloading pit is blocked by the protective shed 10, so as to prevent the dust-containing airflow from leaking out in large quantities; the dust suction unit 20 is set on the protective shed 10, and the dust-containing airflow leaking out from the dust suction port is sucked to prevent the dust-containing airflow from polluting the environment; the air curtain generating unit 30 is set on the periphery of the dust suction port, and the dust-containing airflow is isolated in the dust suction area of ​​the dust suction unit 20, so that the dust suction unit 20 can better suck the dust-containing airflow. The above device can reduce the pollution to the environment caused by coal unloading.

[0039] like Figure 1 As shown, the air curtain generating unit 30 includes an air curtain generator 31. The air curtain generator 31 is tubular and has an air outlet. The air outlet blows out airflow to form an air curtain.

[0040] In this way, the air curtain generator 31 is tubular, and the airflow is blown out through the air outlet to form an air curtain, thereby blocking the dust-laden airflow. The structure is simple and easy to manufacture and install.

[0041] Furthermore, the air outlet includes a plurality of air outlet holes, and the plurality of air outlet holes are distributed at intervals along the extension direction of the air curtain generator 31 .

[0042] In this way, the plurality of air outlet holes are spaced apart along the extension direction of the air curtain generator 31, so that the width of the air curtain is the same as the extension direction of the air curtain generator 31. The interval between two adjacent air outlet holes is not specifically limited, and can be specifically designed and adjusted according to the isolation requirements of the dust-laden airflow.

[0043] like Figure 1 As shown, the air curtain generator 31 is arranged in a ring shape at the periphery of the dust suction port. In this way, the air curtain generator 31 is distributed at the periphery of the dust suction port, and the dust suction area of ​​the dust suction port is surrounded, forming a negative pressure, so that the dust-containing airflow cannot escape and the dust suction port can better suck the dust-containing airflow.

[0044] In this embodiment, the air curtain generator 31 is divided into a first generator 311 and a second generator 312. The first generator 311 is arranged side by side with the dust suction port. There are two first generators 311, and the two first generators 311 are respectively arranged on both sides of the dust suction port. The second generator 312 is arranged on the side of the first generator 311 away from the protective shed 10.

[0045] In this way, the first generator 311 is arranged on both sides of the dust suction port, and the second generator 312 is arranged on the side of the first generator 311 away from the protective shed 10, so that the first generator 311 and the second generator 312 surround the dust suction port to form a dust suction area of ​​the dust suction port, so that the dust-containing airflow escaping from the protective shed 10 is blocked in the dust suction area of ​​the dust suction port.

[0046] like Figure 1 As shown, the air outlet of the first generator 311 is tilted toward the dust suction port, and the angle between the blowing direction of the first generator 311 and the vertical direction is in the range of 15° to 30°.

[0047] In this configuration, the air outlet of the first generator 311 is tilted toward the dust suction port, so that the air curtain of the first generator 311 is tilted toward the dust suction port, and the air curtain forms a negative pressure under the dust suction port, which is conducive to the dust suction port to suck the dust-laden airflow. The angle between the blowing direction of the first generator 311 and the vertical direction ranges from 15° to 30°. Within this range, the air curtain can better block the dust-laden airflow, and the dust suction area will not be reduced due to a large angle. Specifically, the angle between the blowing direction of the first generator 311 and the vertical direction can be 15°, 20° or 30°.

[0048] Furthermore, the dust suction part 20 includes a dust suction hood 21 and a dust removal fan. The dust suction hood 21 is connected to the dust removal fan, and the dust suction hood 21 has a dust suction port.

[0049] With such arrangement, the dust hood 21 has a dust suction port, and the dust removal fan provides negative pressure, so that negative pressure is generated at the dust suction port to suck the dust-laden airflow, thereby preventing the dust-laden airflow from affecting the environment.

[0050] In this embodiment, the protective shed 10 includes a shed frame 11 and a dust curtain 12. The shed frame 11 is arranged above the coal unloading pit, and the dust curtain 12 is hung on the top of the shed frame 11. The dust curtain 12 is used to prevent dust-containing airflow from escaping.

[0051] In this way, the shelf 11 is arranged above the coal unloading pit, supporting the dust suction part and the air curtain generating part. The dust curtain 12 is hung on the top of the shelf 11, blocking part of the dusty airflow, reducing the amount of dusty airflow escaping from the protective shed 10. The protective shed 10 has a simple structure, low manufacturing cost, and is convenient for workers to disassemble and assemble.

[0052] like Figure 1 As shown, there are multiple coal unloading ports 13, which are distributed along the circumference of the protective shed 10, and the dust suction part 20 and the air curtain generating part 30 constitute a dust removal assembly. There are multiple dust removal assemblies, and the multiple dust removal assemblies correspond to the multiple coal unloading ports 13 one by one.

[0053] In this way, multiple coal discharge ports 13 are distributed along the circumference of the protective shed 10, so that coal can be dumped into the coal discharge pit from the multiple coal discharge ports 13. The dust suction part 20 and the air curtain generating part form a dust removal assembly, so that the dust removal assembly removes dust from the coal discharge ports respectively, effectively preventing the dust-containing airflow from polluting the environment.

[0054] like Figure 1As shown, the coal unloading pit dust removal device also includes a steel frame cantilever 40, which is arranged on the top of the outer side surface of the protection shed 10, and the steel frame cantilever 40 is used to fix the dust suction part 20 and the air curtain generating part 30.

[0055] In this way, the steel frame cantilever 40 is arranged on the top of the outer side surface of the protection shed 10, and the dust suction part 20 and the air curtain generating part 30 are fixed on the protection shed 10, thereby ensuring the connection strength between the protection shed and the dust suction part 20 and the air curtain generating part 30.

[0056] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0057] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0058] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0059] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0060] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0061] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

Claims

1. A dust removal device for a coal unloading pit, characterized in that: include: A protective shed (10), the protective shed (10) being arranged above a coal unloading pit of an open-pit coal mine, the protective shed (10) having a coal unloading opening (13), the coal unloading opening (13) being used to unload coal into the coal unloading pit; A dust suction unit (20), the dust suction unit (20) being arranged on the protective shed (10), the dust suction unit (20) being arranged corresponding to the coal discharge port (13) and being located above the coal discharge port (13), the dust suction unit (20) having a dust suction port, the dust suction port being used to suck dust-containing airflow; An air curtain generating part (30) is arranged on the protective shed (10) and is located at the periphery of the dust suction port, and the air curtain generating part (30) is used to form an air curtain to isolate the dust suction area of ​​the dust suction part (20).

2. The coal unloading pit dust removal device according to claim 1, characterized in that: The air curtain generating unit (30) comprises an air curtain generator (31), the air curtain generator (31) is tubular, and the air curtain generator (31) has an air outlet, and the air outlet blows out airflow to form an air curtain.

3. The coal unloading pit dust removal device according to claim 2, characterized in that: The air outlet comprises a plurality of air outlet holes, and the plurality of air outlet holes are distributed at intervals along the extension direction of the air curtain generator (31).

4. The coal unloading pit dust removal device according to claim 2, characterized in that: The air curtain generator (31) is arranged in a ring shape on the outer periphery of the dust suction port.

5. The coal unloading pit dust removal device according to claim 4, characterized in that: The air curtain generator (31) is divided into a first generator (311) and a second generator (312); the first generator (311) is arranged side by side with the dust suction port; there are two first generators (311), and the two first generators (311) are respectively arranged on both sides of the dust suction port; the second generator (312) is arranged on a side of the first generator (311) away from the protective shed (10).

6. The coal unloading pit dust removal device according to claim 5, characterized in that: The air outlet of the first generator (311) is arranged to be inclined toward the dust suction port, and the angle between the blowing direction of the first generator (311) and the vertical direction is in the range of 15° to 30°.

7. The coal unloading pit dust removal device according to claim 1, characterized in that: The dust suction part (20) comprises a dust suction hood (21) and a dust removal fan, the dust suction hood (21) is connected to the dust removal fan, and the dust suction hood (21) has the dust suction port.

8. The coal unloading pit dust removal device according to claim 1, characterized in that: The protective shed (10) comprises a shed frame (11) and a dust curtain (12); the shed frame (11) is arranged above the coal unloading pit; the dust curtain (12) is suspended on the top of the shed frame (11); and the dust curtain (12) is used to prevent dust-laden airflow from escaping.

9. The coal unloading pit dust removal device according to claim 1, characterized in that: There are a plurality of coal unloading ports (13), and the plurality of coal unloading ports (13) are distributed along the circumference of the protective shed (10); the dust suction part (20) and the air curtain generating part (30) form a dust removal component, and there are a plurality of dust removal components, and the plurality of dust removal components correspond one-to-one to the plurality of coal unloading ports (13).

10. The coal unloading pit dust removal device according to claim 1, characterized in that: The coal unloading pit dust removal device also includes a steel frame cantilever (40), which is arranged on the top of the outer side surface of the protection shed (10), and the steel frame cantilever (40) is used to fix the dust suction part (20) and the air curtain generating part (30).

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