Hopper environmental protection device with three movable wind-shield walls and spraying system

Abstract

The utility model relates to a hopper environment-friendly device with three movable wind-shield walls and a spraying system. According to the scheme, the hopper environment-friendly device comprises a hopper, a dust blocking part arranged at the top of the hopper, the three movable wind-shield walls above the dust blocking part and a fixed wind-shield wall. A vertical sliding rail structure and a spraying system are arranged on the inner wall of the dust blocking part, and the spraying system is divided into multiple layers of spraying assemblies which can independently or uniformly slide up and down. Each movable wind-shield wall is rotationally connected with the top of the dust blocking part and can be turned over, and a monitoring probe is arranged on the fixed wind-shield wall. According to the device, through the unique design of the wind-shield wall and the spraying system, the dust pollution problem of the ship unloader hopper during material loading and unloading is effectively solved, and the internal condition of the hopper can be monitored in real time in cooperation with a reliable monitoring system. The device has the advantages of being good in dustproof effect, flexible and efficient in spraying and dust falling, comprehensive and reliable in monitoring, high in equipment stability and durability and the like, and is suitable for environment-friendly transformation and new equipment configuration of various port ship unloader hoppers.

Description

Technical Field

[0001] This utility model belongs to the field of port machinery technology, specifically relating to an environmentally friendly dust suppression device for bulk cargo unloading machines, particularly for dust control and dynamic adjustment technology for hopper structures. Background Technology

[0002] In bulk cargo unloading operations at ports, hoppers are crucial components for material transfer; however, the falling material easily generates large amounts of dust, causing environmental pollution and reduced visibility. Current technologies often employ fixed windbreaks combined with top-mounted sprinkler systems for dust suppression, but these methods suffer from the following problems:

[0003] 1. Fixed windbreak walls obstruct equipment maintenance and cannot dynamically adjust the coverage area according to material flow;

[0004] 2. The fixed location of the spray system makes it difficult to accurately suppress dust in areas with varying heights of dust dispersion;

[0005] 3. The lack of linkage between dust monitoring and spray control, and the reliance on manual adjustment, leads to low efficiency.

[0006] Therefore, there is an urgent need for a hopper-based environmental protection device with three movable windbreak walls and a spray system to solve the problems existing in the current technology. Utility Model Content

[0007] The purpose of this utility model is to address the aforementioned problems in the existing technology by providing a hopper environmental protection device with three movable windbreak walls and a spray system.

[0008] To achieve the above-mentioned application objectives, the present utility model adopts the following technical solution: a hopper environmental protection device with three movable windbreak walls and a spraying system includes a hopper, a dust-blocking part located on the top of the hopper, three movable windbreak walls located above the dust-blocking part, and a fixed windbreak wall.

[0009] The inner wall of the dustproof section is provided with a vertical slide rail structure and a spray system on the vertical slide rail structure. The spray system is divided into multiple spray components, and each spray component can slide up and down on the vertical slide rail structure independently or uniformly.

[0010] Each movable windbreak wall is rotatably connected to the top of the dustproof section, allowing it to be flipped over;

[0011] Monitoring probes are installed on the fixed windbreak wall to monitor the dust-blocking section and the inside of the hopper.

[0012] Furthermore, the dust-blocking section is equipped with multiple layers of limiting rods, which restrict the movement of each spray assembly within its respective stroke.

[0013] Furthermore, the vertical slide rail structure includes multiple vertical guide rails, each of which is equipped with a slider corresponding to the spray assembly, and the spray assembly is connected to the slider.

[0014] Furthermore, each spray assembly corresponds to a drive mechanism, or all spray assemblies use the same drive mechanism.

[0015] Furthermore, the drive mechanism is a lead screw transmission structure.

[0016] Furthermore, the number of surveillance cameras should be at least two.

[0017] Furthermore, the movable windbreak wall is driven to rotate by a motor.

[0018] Furthermore, the monitoring probe is an infrared thermal imaging camera, and its lens surface is equipped with an air curtain dustproof device, which forms an isolation layer through high-pressure airflow.

[0019] Furthermore, each spray assembly includes atomizing nozzles and flow regulating valves, and each layer corresponds to an independent water pump drive unit.

[0020] Furthermore, the surface of the vertical slide rail structure is covered with a dustproof sealing strip, and the slider and the guide rail are driven by a ball screw, which is covered with a waterproof cover.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] 1. Significantly improved dust control: The combination of three movable windbreak walls and fixed windbreak walls can effectively prevent dust generated during material loading and unloading from spreading outward. Compared with the traditional single windbreak structure, it can protect the hopper in all directions and greatly reduce dust pollution to the surrounding environment.

[0023] 2. Flexible and efficient spray system: The multi-layer spray components can slide up and down on the vertical slide rail structure independently or uniformly. With the corresponding atomizing nozzles, flow regulating valves and independent water pump drive units for each layer, the spray position, flow rate and coverage can be precisely adjusted according to different working conditions of material loading and unloading and dust generation, so as to achieve a highly efficient dust reduction effect. Compared with the traditional fixed spray system, it is more adaptable.

[0024] 3. Comprehensive and reliable monitoring: At least two infrared thermal imaging cameras are set as monitoring probes, and the lens surface is equipped with an air curtain dustproof device. It can perform all-round and clear monitoring of the dust-proof part and the inside of the hopper in various complex environments. It can work normally even in harsh weather or high dust environment, ensuring real-time monitoring of the working status of the hopper and improving the safety and reliability of equipment operation.

[0025] 3. Enhanced equipment stability and durability: The vertical slide rail structure features a dustproof sealing strip covering the guide rail surface, a ball screw drive between the slider and the guide rail with the ball screw covered by a waterproof cover, and a motor-driven rotating movable windbreak wall. These features effectively reduce the erosion and wear of key components by dust and water, improve equipment stability and service life, and reduce maintenance costs. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the internal structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the external structure of this utility model.

[0028] In the diagram, 1 is the hopper; 2 is the dust barrier; 3 is the movable windbreak wall; 4 is the fixed windbreak wall; 5 is the spray system; 6 is the monitoring probe; 21 is the vertical slide rail structure; 22 is the limit rod; and 51 is the atomizing nozzle. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0030] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 above terms should not be construed as limitations on this utility model.

[0031] Example 1

[0032] This hopper environmental protection device, featuring three movable windbreaks and a spray system, relates to an environmental protection device for a ship unloader hopper, particularly suitable for high-dust operating environments at bulk material terminals such as coal and ore wharves. Figure 1-2 As shown, the device includes a hopper 1, a dust-blocking section 2, three movable windbreak walls 3, a fixed windbreak wall 4, a spraying system 5, and a monitoring probe 6. All components work together through mechanical connection and electrical control to achieve dynamic dust suppression and real-time monitoring functions.

[0033] In this embodiment, the hopper 1 adopts a steel structure, the width of the top opening matches the material discharge port of the ship unloader, and the bottom can be connected to the conveyor belt interface through a flange. This is existing technology and will not be described in detail here.

[0034] The dustproof part 2 is welded to the top of the hopper 1, with a height of 1.2-1.5m. Vertical slide rail structure 21 is symmetrically installed on its inner wall. The slide rail surface is covered with a dustproof sealing strip. The guide rail is made of stainless steel with a T-slot cross section and a ball screw drive structure that matches the slider.

[0035] The sprinkler system is divided into three independent sprinkler components: upper, middle, and lower. Each component includes:

[0036] Atomizing nozzle 51: orifice diameter 0.5-1.0mm, water pressure 0.3-0.5MPa, coverage angle 120°;

[0037] Flow regulating valve: The opening degree is adjusted according to the dust concentration by a PID controller;

[0038] Independent water pump unit: power 2.2kW, flow rate 30L / min.

[0039] The spray assembly is connected to the slide rail of the vertical slide rail structure 21 via a slider, and the driving method is optional.

[0040] Option 1: Each layer of the spray assembly is equipped with a separate lead screw motor with a power of 0.75kW and a stroke of 0-1.2m;

[0041] Option 2: Use a single servo motor to synchronously drive the three-layer slider via a chain.

[0042] Multi-layer limit rods 23 are welded to the inner side of the dust-blocking part 2 to limit the sliding range of the spray assembly (e.g., lower layer limit height 0.3m, middle layer 0.8m, upper layer 1.2m). Limit switches or sensors can also be set to achieve a combination of hard and soft limits.

[0043] The driving structure of the spray component in this utility model is not limited. It can be a common lead screw drive or a chain drive, as long as it can drive the spray component to move up and down on the vertical slide rail structure 21. The corresponding waterproof measures are conventional settings for those skilled in the art, so they will not be described in detail here.

[0044] The three-sided movable windbreak wall 3 consists of three wall panels: the front, left, and right sides, which are connected to the top of the dust-blocking section 2 via hinges. The wall panels are made of lightweight aluminum alloy with sound-absorbing cotton attached to the inside. Each wall panel is driven to rotate by a motor with a rotation angle of 0-90°, a motor torque of 50 N·m, and a response time of ≤2 seconds. Alternatively, a hydraulic cylinder can be used to drive the movable windbreak wall 3 instead of the motor. The specific driving method for rotating the movable windbreak wall 3 is existing technology, and its principle and structure will not be elaborated here.

[0045] Fixed windbreak wall 4: Located behind hopper 1, the wall is embedded with two infrared thermal imaging cameras (monitoring probes 6), with the lenses facing inwards from the hopper. The resolution is 1920×1080, and the frame rate is 30fps. An air curtain dustproof device (existing technology) is installed on the surface of the camera, which generates an annular airflow through a high-pressure air pump (0.6MPa) to isolate dust adhesion.

[0046] Example 2

[0047] Based on the same concept, this embodiment provides a specific implementation method:

[0048] Dust suppression mode activated:

[0049] When the ship unloader begins unloading, the dust sensor detects that the dust concentration exceeds the standard (>10mg / m³). 3 The PLC controller synchronously initiates the following actions:

[0050] The movable windbreak wall 3 can be rotated to a 60° angle to form a semi-enclosed space, reducing external wind speed interference;

[0051] The middle layer component of the spray system 5 slides to a height of 0.8m, the atomizing nozzle 51 is turned on, and the lower layer component remains at a low position to suppress dust.

[0052] Infrared cameras monitor the temperature distribution of materials in the hopper in real time. If the local temperature exceeds 80°C, an alarm is triggered and the spray intensity is adjusted.

[0053] The parts of this utility model not described in detail are existing technologies, therefore, this utility model does not describe them in detail.

[0054] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0055] Although this document uses a considerable amount of technical terminology, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

[0056] This utility model is not limited to the above-described preferred embodiment. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made to their shape or structure, any technical solution that is the same as or similar to this utility model falls within the protection scope of this utility model.

Claims

1. A material hopper environmental protection device with three movable wind-blocking walls and a spraying system, characterized in that, The dust blocking part is provided with a vertical sliding rail structure and a spraying system on the inner wall of the dust blocking part, and the spraying system is divided into multiple layers of spraying assemblies, each of which can slide up and down on the vertical sliding rail structure independently or uniformly. Each of the movable wind blocking walls is rotationally connected to the top of the dust blocking part and can be turned over. The fixed wind blocking wall is provided with a monitoring probe for monitoring the inside of the dust blocking part and the hopper. The dust blocking part is provided with multiple layers of limiting rods to limit each layer of spraying assemblies within their respective travel ranges.

2. The environmentally friendly device for a hopper with a three-sided movable wind barrier and a spraying system according to claim 1, characterized in that, The vertical sliding rail structure includes multiple vertical guide rails, each of which is provided with a sliding block corresponding to the spraying assembly.

3. The environmentally friendly device for a hopper with a three-sided movable wind barrier and a spraying system according to claim 1, characterized in that, Each layer of the spraying assembly corresponds to a driving mechanism or all the spraying assemblies use the same driving mechanism.

4. The environmentally friendly device for a hopper with a three-sided movable wind barrier and a spraying system according to claim 1, characterized in that, The driving mechanism is a lead screw transmission structure.

5. The environmentally friendly device for a hopper with a three-sided movable wind barrier and a spray system according to claim 4, characterized in that, The number of monitoring probes is at least two.

6. The environmentally friendly device for a hopper having a three-sided movable wind barrier and a spray system according to claim 1, wherein, The movable wind blocking wall is driven to rotate by a motor.

7. The environmentally protective device for a hopper having a three-sided movable wind barrier and a spray system according to claim 1, wherein, The monitoring probe is an infrared thermal imaging camera with an air curtain dustproof device on the lens surface to form an isolation layer through high-pressure airflow.

8. The environmentally friendly device for a hopper with three movable wind walls and a spraying system according to any one of claims 1-7, characterized in that, Each layer of the spraying assembly includes an atomizing nozzle and a flow regulating valve, and each layer corresponds to an independent water pump driving unit.

9. The environmentally friendly device for a hopper with three movable wind walls and a spraying system according to any one of claims 1-7, characterized in that, The guide rail surface of the vertical sliding rail structure is covered with a dustproof sealing strip, and the sliding block and the guide rail are connected through a ball screw transmission, and the ball screw is covered with a waterproof cover outside.

10. The environmentally friendly device for a hopper with three movable wind walls and a spraying system according to any one of claims 1-7, characterized in that, ​

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