Multi-layer dust suppression device of follow-up moving unloading equipment

Abstract

The invention relates to a multi-layer dust suppression device of follow-up moving unloading equipment, and belongs to the technical field of storage of bulk materials in stock yards. Comprising an inner-layer dust suppression device and an outer-layer dust suppression device, the inner-layer dust suppression device comprises an inner-layer spraying water pipe and an inner-layer spraying head which are arranged around a discharging opening of a discharging chute in a surrounding mode, and the outer-layer dust suppression device is hung on the outer side of the discharging opening of the discharging chute through a hanging steel wire assembly and a telescopic supporting rod piece. The dust suppression control system independently controls the inner-layer dust suppression device and the outer-layer dust suppression device. The outer-layer dust suppression device comprises a front-section spraying water pipe, a telescopic flexible water pipe, a rear-section spraying water pipe and an outer-layer spraying head, the hanging steel wire assembly comprises a flexible steel wire rope, a pulley block and a hoisting mechanism, and the telescopic supporting rod piece comprises an upper-section fixing rod and a lower-section fixing rod which are connected through a telescopic rod. By means of multi-layer dust suppression, flying dust, overflow and diffusion of materials in the discharging process are reduced, and the production operation environment is improved.

Description

Technical Field

[0001] This invention belongs to the field of bulk material storage technology in material yards, and relates to a multi-layer dust suppression device that follows a moving unloading device. Background Technology

[0002] In the fields of industrial production and logistics transportation, material yards play an indispensable role as key hubs for material storage and transfer. However, during the daily and frequent unloading process at material yards, a thorny technical problem is seriously troubling enterprises' production operations and environmental protection efforts—dust pollution.

[0003] In actual unloading scenarios, materials often carry a considerable amount of dust. This dust has a complex composition and varying particle sizes, closely accompanying the material particles. When the material is unloaded from the transport equipment, due to the significant density difference between the dust and the material particles, they gradually separate under the combined effects of the air medium and wind resistance. The lighter dust breaks free from the material particles' "binding" and rapidly diffuses into the surrounding environment, causing dust to fly everywhere in the material yard and significantly reducing visibility. This not only poses a serious threat to the health of on-site workers, and long-term exposure to such an environment can easily lead to various health problems such as respiratory and eye diseases; but also, the large amount of dust dispersed into the surrounding area has a detrimental impact on the air quality, violating increasingly stringent environmental regulations and placing enormous environmental pressure on enterprises.

[0004] Further complicating matters is the diverse range of materials stored within the stockyard, each exhibiting significant differences in physical and chemical properties. These differences directly lead to drastically different dust generation patterns during the stockpiling and unloading process. For instance, loosely textured materials with fine particles are highly prone to generating dust during unloading, with dust particles flying over a relatively large height and area; while denser materials with larger particles generate relatively less dust. However, current dust suppression measures employed at stockyards are mostly simplistic, lacking specificity and flexibility, and unable to precisely address dust generation based on the characteristics of different materials. During unloading, existing dust suppression methods often fail to achieve the desired dust suppression effect, failing to effectively control the spread of dust, thus leaving the dust problem within the stockyard unresolved at its root.

[0005] Faced with this severe technical challenge, in order to improve the working environment of the material yard, protect the health of employees, and meet environmental protection requirements, there is an urgent need for an innovative solution to meet multi-level and all-round dust suppression and solve the problem of dust generation during material unloading at the material yard. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a multi-layer dust suppression device that follows a moving unloading device, thereby reducing the dust release and diffusion of materials during the unloading process and improving the working environment of production.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A multi-layer dust suppression device is disclosed, which follows a mobile unloading device. The mobile unloading device includes a unloading chute and a maintenance platform. The inner layer dust suppression device includes an inner layer spray pipe and inner layer nozzles installed on the inner layer spray pipe, which surrounds the unloading port of the unloading chute. The outer layer dust suppression device is suspended from the mobile unloading device by a hanging steel wire assembly and surrounds the outside of the unloading port of the unloading chute. The inner and outer layer dust suppression devices are respectively connected to a dust suppression control system to achieve individual control of the inner and outer layer dust suppression devices. The dust suppression control system is installed on the maintenance platform.

[0008] Optionally, the outer dust suppression device includes a front spray pipe, a retractable flexible water pipe, and a rear spray pipe connected in sequence. The two ends of the rear spray pipe are respectively connected to the front spray pipe through the flexible water pipe. The rear spray pipe is arranged around the outside of the discharge port of the discharge chute. The outer nozzle is arranged on the rear spray pipe, and the spray angle of the outer nozzle is adjustable and detachable.

[0009] Optionally, the flexible water pipe is connected to the front spray pipe and the rear spray pipe respectively via threads.

[0010] Optionally, the suspended steel wire assembly includes a flexible steel wire rope, a pulley block, and a winch mechanism; the pulley block is mounted on the main frame of the mobile unloading equipment; one end of the flexible steel wire rope is connected to the outer dust suppression device, and the other end passes around the pulley block and connects to the winch mechanism.

[0011] Optionally, the pulley block is a directional pulley block.

[0012] Optionally, the outer dust suppression device is also connected to the main frame of the mobile unloading equipment via telescopic support rods, and the installation height of the outer dust suppression device is adjusted according to the drop height of the unloading; the extension and retraction of the flexible steel wire rope is coordinated with the extension and retraction of the telescopic support rods to ensure stable lifting and lowering of the outer dust suppression device.

[0013] Optionally, the telescopic support rod includes an upper fixed rod and a lower fixed rod connected by a telescopic rod; it also includes a safety rope connected to the upper fixed rod and the lower fixed rod at both ends respectively, wherein the sum of the maximum elongation of the telescopic rod and the length of the upper fixed rod and the lower fixed rod between the safety rope is less than the length of the safety rope.

[0014] Optionally, the telescopic rod is a mechanical telescopic rod, with external threads on its outer surface and internal threads that mate with the external threads on the inner surfaces of the upper and lower fixed rods. The upper and lower fixed rods are respectively threadedly connected to the telescopic rod. A rotating rod is also fixedly connected to the telescopic rod, which drives the telescopic rod to rotate axially, thereby realizing the telescopic support member's extension and retraction.

[0015] Optionally, if the telescopic rod is a hydraulic telescopic rod, then a hydraulic system is provided.

[0016] Optionally, the expansion and contraction of the flexible water pipe is greater than or equal to the expansion and contraction of the telescopic support member.

[0017] The beneficial effects of this invention are as follows: This invention discloses a multi-layer dust suppression device that follows a moving unloading equipment. It can be applied to industries such as metallurgy and coal mining. The device features a rational overall design, with inner and outer dust suppression layers that move with the unloading equipment. During the unloading process, the inner dust suppression layer atomizes the material at the unloading chute opening in advance, reducing dust generation during the material's descent. The outer dust suppression layer further suppresses dust dispersed during the material's fall, reducing the possibility of dust spillage and improving the unloading working environment.

[0018] Specifically, the inner and outer dust suppression devices are installed on the mobile unloading equipment, allowing them to move with the equipment, thus offering strong feasibility and reducing space occupancy. The dust suppression control system is interlocked with the unloading equipment. Based on the characteristics of the material during unloading, the multi-layer dust suppression system can further adjust the dust suppression operation during material descent, improving the work process. The dust suppression control system can also be interlocked with the multi-layer dust suppression system to adjust water volume, water pressure, and installation height according to material characteristics and quantity, offering high flexibility.

[0019] This invention is simple to set up, has low investment costs, and can improve the working environment without affecting the existing space layout, and has high practical value.

[0020] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0021] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein: Figure 1 Elevation view of the dust suppression device for the unloading equipment; Figure 2 This is a cross-sectional view of the dust suppression device for the unloading equipment; Figure 3 Plan view of the dust suppression device for the unloading equipment; Figure 4 Elevation view of the inner dust suppression device; Figure 5 This is a cross-sectional view of the inner dust suppression device; Figure 6 Elevation view of the outer dust suppression device; Figure 7 This is a cross-sectional view of the outer dust suppression device; Figure 8 This is a schematic diagram of a hydraulic telescopic support rod. Figure 9 This is a schematic diagram of a mechanical telescopic support rod. Figure 10 This is a magnified view of a portion of the mechanical telescopic support rod.

[0022] Figure label: 1. Mobile unloading equipment; 11. Unloading chute; 12. Maintenance platform; 14. Main frame; 2. Control system; 3. Inner dust suppression device; 31. Inner spray pipe; 32. Inner nozzle; 4. Outer dust suppression device; 41. Front spray pipe; 42. Flexible water pipe; 43. Rear spray pipe; 44. Outer nozzle; 45. Hanging steel wire assembly; 451. Flexible steel wire rope; 452. Pulley block; 453. Winching mechanism; 46. Telescopic support rod; 461. Upper fixed rod; 4611. Internal thread; 462. Lower fixed rod; 463. Telescopic rod; 4631. External thread; 464. Safety rope; 465. Rotating rod; 5. Installation platform. Detailed Implementation

[0023] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0024] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0025] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0026] Example 1 Please see Figures 1-10 This is a multi-layer dust suppression device that follows a mobile unloading device 1. The mobile unloading device 1 includes a unloading chute 11 and a maintenance platform 12, through which materials can be unloaded to the corresponding position. The inner layer dust suppression device 3 includes an inner layer spray pipe 31 and inner layer nozzles 32 installed on the inner layer spray pipe 31. The inner layer spray pipe 31 is arranged around the unloading port of the unloading chute 11. Several inner layer nozzles 32 are rotatably installed on the inner layer spray pipe 31, so that the spray angle of the inner layer nozzles 32 is adjustable and detachable. The outer layer dust suppression device 4 is suspended on the mobile unloading device 1 by a hanging steel wire assembly 45, and the outer layer dust suppression device 4 is arranged around the outside of the unloading port of the unloading chute 11. The inner spray pipe 31 of the inner dust suppression device 3 and the front spray pipe 41 of the outer dust suppression device 4 are respectively connected to the dust suppression control system 2 to achieve individual control of the dust suppression spraying of the inner dust suppression device 3 and the outer dust suppression device 4. Simultaneously, the flow rate and water volume of the atomization can be controlled to coordinate with the unloading operation of the mobile unloading equipment 1. The dust suppression control system 2 is installed on the maintenance platform 12. The inner dust suppression device 3 and the outer dust suppression device 4 can move back and forth on the installation platform 5 following the mobile unloading equipment 1, demonstrating strong feasibility and reducing space occupancy.

[0027] The outer dust suppression device 4 includes a front spray water pipe 41, a retractable flexible water pipe 42, and a rear spray water pipe 43 connected in sequence. The flexible water pipe 42 is threadedly connected to the front spray water pipe 41 and the rear spray water pipe 43, and both ends of the flexible water pipe 42 are sealed. The rear spray water pipe 43 is arranged around the outside of the discharge port of the discharge chute 11. The outer nozzle 44 is installed on the rear spray water pipe 43, and the spray angle of the outer nozzle 44 is adjustable and detachable. Furthermore, the extension and retraction of the flexible water pipe 42 must be greater than or equal to the extension and retraction of the telescopic support rod 46.

[0028] Furthermore, the inner nozzle 32 and the outer nozzle 44 work together to cover the dust spread during the unloading process, thus improving the dust suppression effect.

[0029] The suspended wire rope assembly 45 includes a flexible wire rope 451, a pulley block 452, and a hoisting mechanism 453. The pulley block 452 is mounted on the main frame 14 of the mobile unloading equipment 1. One end of the flexible wire rope 451 is connected to the rear spray pipe 43 of the outer dust suppression device 4, and the other end passes around the pulley block 452 and connects to the hoisting mechanism 453. The extension and retraction of the flexible wire rope 451 is coordinated with the extension and retraction of the telescopic support rod 46 to ensure stable lifting and lowering of the outer dust suppression device 4. The pulley block 452 is a directional pulley block 452, which enables the flexible wire rope 451 to change direction to accommodate various arrangements of the outer dust suppression device 4.

[0030] The hoisting mechanism 453 of the suspended wire assembly 45 can be manual or electric, and one or more can be set according to the actual working conditions.

[0031] Furthermore, the outer dust suppression device 4 is also connected to the main frame 14 of the mobile unloading equipment 1 via one or more telescopic support rods 46. The telescopic support rods 46 cooperate with the hanging steel wire assembly 45 to adjust the installation height of the outer dust suppression device 4 according to the drop height of the unloading, ensuring an effective atomization range. The telescopic support rods 46 include an upper fixed rod 461 and a lower fixed rod 462 connected by a telescopic rod 463; it also includes a safety rope 464 with its two ends connected to the upper fixed rod 461 and the lower fixed rod 462 respectively. The sum of the maximum elongation of the telescopic rod 463 and the length of the upper fixed rod 461 and the lower fixed rod 462 between the safety rope 464 is less than the length of the safety rope 464.

[0032] Example 2 Based on the above embodiment 1, the telescopic rod 463 is a mechanical telescopic rod 463. The outer surface of the telescopic rod 463 is provided with external threads 4631, and the upper fixed rod 461 and the lower fixed rod 462 are provided with internal threads 4611 that cooperate with the external threads 4631. The upper fixed rod 461 and the lower fixed rod 462 are respectively threadedly connected to the telescopic rod 463. A rotating rod 465 is also fixedly connected to the telescopic rod 463. When the rotating rod 465 rotates in one direction, it drives the telescopic rod 463 to rotate axially, so as to realize the single extension or retraction action of the telescopic support rod 46.

[0033] Example 3 Unlike Embodiment 2 above, the telescopic rod 463 in this embodiment is a hydraulic telescopic rod 463, equipped with a hydraulic pump system, which is used to realize the extension and retraction of the telescopic rod 463.

[0034] The inner spray head 32 and the outer spray head 44 are arranged in multiple or multiple staggered layers and are detachably installed on the spray pipe. Both the inner spray head 32 and the outer spray head 44 are adjustable in angle.

[0035] The dust suppression device is made of lightweight materials and has a light overall weight, so it will not cause the center of gravity of the mobile unloading equipment to deviate.

[0036] A multi-layer dust suppression method employing the aforementioned multi-layer dust suppression device with a following moving unloading equipment, the specific implementation steps of which are as follows: Step 1: The dust suppression control system 2 is installed above the maintenance platform 12 of the mobile unloading equipment 1. The front end of the dust suppression control system 2 is connected to the dust suppression control system 2 of the mobile unloading equipment 1, and the rear end is connected to the inner dust suppression device 3 and the outer dust suppression device 4 respectively. Step 2: One end of the inner layer spray water pipe 31 of the inner layer dust suppression device 3 is connected to the dust suppression control system 2, and the other end of the inner layer spray water pipe 31 is arranged along the unloading chute 11 and surrounds the unloading port. At the same time, the inner layer nozzle 32 is installed and wrapped around the inner layer spray water pipe 31 at the unloading port. Step 3: One end of the front spray water pipe 41 of the outer dust suppression device 4 is connected to the dust suppression control system 2, and the other end is connected to the front end of the flexible water pipe 42. Then the flexible water pipe 42 is connected to the rear spray water pipe 43, and the remaining water pipes are wrapped around the outside of the unloading chute 11. The outer nozzle 44 is installed below the rear spray water pipe 43. Step 4: One end of the flexible steel wire rope 451 of the hanging steel wire assembly 45 is fixed to the rear spray water pipe 43, and the other end of the flexible steel wire rope 451 passes through the pulley block 452 installed on the main frame 14 of the unloading vehicle and is connected to the winch mechanism 453. The hanging steel wire assembly 45 suspends the outer spray water pipe. Step 5: The lower section of the telescopic support rod 462 is fixed to the rear section of the spray water pipe 43, and the upper section is fixed to the main frame 14 of the mobile unloading equipment 1. The two sections are connected together by the telescopic rod 463. At the same time, the safety rope 464 is connected between the upper and lower sections of the fixed rod 462 to protect the telescopic support rod 46 and limit its movement. Step Six: After installation, the dust suppression control system 2 and the mobile unloading equipment 1 are interlocked. During the unloading process, the inner dust suppression device 3 and the outer dust suppression device 4 can be activated simultaneously. The inner dust suppression device 3 pre-atomizes the material at the unloading port, while the outer dust suppression device 4 further suppresses the dust that spreads during the unloading process. Simultaneously, the angles of the inner nozzle 32 and the outer nozzle 44, as well as the flow rate and pressure of the sprayed water, are adjusted according to the characteristics of the material to ensure the dust suppression effect and prevent dust from spreading into the external environment.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A multi-layer dust suppression device that follows a moving unloading equipment, characterized in that: The mobile unloading equipment (1) includes an unloading chute (11) and a maintenance platform (12); the inner dust suppression device (3) includes an inner spray water pipe (31) and an inner spray nozzle (32) installed on the inner spray water pipe (31), the inner spray water pipe (31) being arranged around the unloading port of the unloading chute (11); the outer dust suppression device (4) is suspended on the mobile unloading equipment (1) by a hanging steel wire assembly (45), and the outer dust suppression device (4) is arranged around the outside of the unloading port of the unloading chute (11); the inner dust suppression device (3) and the outer dust suppression device (4) are respectively connected to the dust suppression control system (2) to realize the individual control of the inner dust suppression device (3) and the outer dust suppression device (4); the dust suppression control system (2) is installed on the maintenance platform (12).

2. The multi-layer dust suppression device for the following mobile unloading equipment according to claim 1, characterized in that: The outer dust suppression device (4) includes a front spray water pipe (41), a retractable flexible water pipe (42), and a rear spray water pipe (43) connected in sequence. The two ends of the rear spray water pipe (43) are respectively connected to the front spray water pipe (41) through the flexible water pipe (42). The rear spray water pipe (43) is arranged around the outside of the discharge port of the discharge chute (11). The outer nozzle (44) is arranged on the rear spray water pipe (43). The spray angle of the outer nozzle (44) is adjustable and detachable.

3. The multi-layer dust suppression device for the following mobile unloading equipment according to claim 2, characterized in that: The flexible water pipe (42) is connected to the front spray water pipe (41) and the rear spray water pipe (43) by threads.

4. The multi-layer dust suppression device for the following mobile unloading equipment according to claim 1, characterized in that: The suspended wire assembly (45) includes a flexible wire rope (451), a pulley block (452), and a hoisting mechanism (453); the pulley block (452) is installed on the main frame (14) of the mobile unloading device (1); one end of the flexible wire rope (451) is connected to the outer dust suppression device (4), and the other end passes around the pulley block (452) and is connected to the hoisting mechanism (453).

5. The multi-layer dust suppression device for the following mobile unloading equipment according to claim 4, characterized in that: The pulley block (452) is a directional pulley block (452).

6. The multi-layer dust suppression device for the following mobile unloading equipment according to claim 2, characterized in that: The outer dust suppression device (4) is also connected to the main frame (14) of the mobile unloading equipment (1) via a telescopic support rod (46). The installation height of the outer dust suppression device (4) is adjusted according to the drop height of the unloading. The extension and retraction of the flexible steel wire rope (451) is coordinated with the extension and retraction of the telescopic support rod (46) to make the outer dust suppression device (4) rise and fall stably.

7. The multi-layer dust suppression device for a following mobile unloading device according to claim 6, characterized in that: The telescopic support rod (46) includes an upper fixed rod (461) and a lower fixed rod (462) connected by a telescopic rod (463); it also includes a safety rope (464) with its two ends connected to the upper fixed rod (461) and the lower fixed rod (462) respectively. The sum of the maximum elongation of the telescopic rod (463) and the lengths of the upper fixed rod (461) and the lower fixed rod (462) between the safety rope (464) is less than the length of the safety rope (464).

8. The multi-layer dust suppression device for the following mobile unloading equipment according to claim 7, characterized in that: The telescopic rod (463) is a mechanical telescopic rod (463). The outer surface of the telescopic rod (463) is provided with an external thread (4631). The upper section fixed rod (461) and the lower section fixed rod (462) are provided with internal threads (4611) that cooperate with the external thread (4631). The upper section fixed rod (461) and the lower section fixed rod (462) are respectively threadedly connected to the telescopic rod (463). A rotating rod (465) is also fixedly connected to the telescopic rod (463). The rotating rod (465) drives the telescopic rod (463) to rotate axially, thereby realizing the telescopic support rod (46).

9. The multi-layer dust suppression device for a following mobile unloading device according to claim 7, characterized in that: When the telescopic rod (463) is a hydraulic telescopic rod (463), it is equipped with a hydraulic system.

10. The multi-layer dust suppression device for a following mobile unloading device according to claim 6, characterized in that: The expansion and contraction of the flexible water pipe (42) is greater than or equal to the expansion and contraction of the telescopic support member (46).

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