Dust suppression device of bridge type grab ship unloader

Abstract

The utility model discloses a dust suppression device of a bridge type grab ship unloader, which comprises two oppositely arranged wind blocking doors, and further comprises two first spraying mechanisms arranged on the inner walls of the corresponding wind blocking doors and used for spraying the inner side areas of the wind blocking doors; the two second spraying mechanisms are arranged at the upper ends of the corresponding wind blocking doors and used for spraying the areas above the wind blocking doors; the lifting curtain is located between the rear sides of the two wind shielding doors, the lower portion of the lifting curtain is fixed between the lower portions of the two wind shielding doors, the upper portion of the lifting curtain can move up and down through a lifting mechanism, and a third spraying mechanism used for spraying the areas behind the wind shielding doors is arranged on the upper portion of the lifting curtain; the method has the advantages that dust pollution can be remarkably reduced, water resource utilization is optimized, and environmental protection and operation efficiency are improved.

Description

Technical Field

[0001] The utility model relates to a dust blocking device, in particular to a dust suppression device for a bridge type grab ship unloader. Background Art

[0002] In today's port logistics system, bulk cargo terminals play a vital role, responsible for the loading and unloading of a large number of bulk cargoes such as coal, ore, grain, etc. However, during these operations, especially when the bridge grab ship unloader transfers bulk cargo from the ship to the ground or yard, it faces severe environmental challenges, especially the dust problem. Traditional bulk cargo handling methods are often accompanied by a large amount of dust emissions, which not only seriously pollutes the surrounding air and affects the health of operators, but may also cause irreversible damage to the surrounding ecological environment. With the increasingly stringent environmental protection and the improvement of public environmental awareness, reducing dust pollution in bulk cargo operations and improving the green level of terminal operations have become an inevitable trend in the development of the industry.

[0003] Among the dust control technologies commonly used in current bulk cargo terminals, the spray dust removal system occupies an important position. This system is installed around a large hopper and uses a high-pressure pump to transport water to a special nozzle. The nozzle sprays fine water mist into the loading and unloading area at a carefully calculated angle. The water mist meets and combines with the scattered dust particles in the air. The weighted particles settle naturally, thereby reducing the dust content in the air.

[0004] Although the above technologies have alleviated the dust problem to a certain extent, their effectiveness is still highly dependent on the precise layout of equipment, meticulous management of operations, and external environmental factors such as wind speed and temperature. Their main shortcomings are concentrated on efficiency, environmental adaptability, and resource consumption. First, the dust blocking efficiency of the sprinkler system is significantly restricted by external conditions. For example, changes in wind direction and speed will seriously affect the diffusion and sedimentation of water mist, making dust control almost ineffective under certain meteorological conditions. In addition, the sprinkler system may affect operating efficiency in some cases. For example, excessive water mist may cause obstruction of vision, or increase the difficulty of handling materials after they are wet, affecting subsequent loading and unloading and storage processes. Moreover, the continuously running sprinkler system will consume a lot of water resources, which is contrary to the current trend of energy conservation and emission reduction.

[0005] Therefore, in view of these shortcomings, it is obviously necessary to explore a more intelligent, flexible and environmentally friendly solution to cope with the growing environmental pressure of bulk terminals while maintaining efficient operational capabilities. Utility Model Content

[0006] The utility model aims to provide a dust suppression device for a bridge-type grab ship unloader, which can significantly reduce dust pollution, optimize water resource utilization, and improve environmental protection and operating efficiency.

[0007] To achieve the above purpose, the utility model provides the following technical solution: a dust suppression device for a bridge-type grab ship unloader, comprising two relatively arranged wind shield doors, and also comprising:

[0008] Two first spraying mechanisms are arranged on the inner wall corresponding to the wind shield door, and are used to spray the inner area of ​​the wind shield door;

[0009] Two second spraying mechanisms are arranged at the upper ends of the corresponding wind shield doors, and are used to spray the area above the wind shield doors;

[0010] A lifting curtain is located between the rear sides of the two wind shield doors, and the lower part of the lifting curtain is fixed between the lower parts of the two wind shield doors. The upper part of the lifting curtain can move up and down through a lifting mechanism. The upper part of the lifting curtain is also provided with a third spraying mechanism for spraying the area behind the wind shield doors.

[0011] Preferably, each of the first spray mechanisms comprises a plurality of first spray nozzles, which are distributed in an array on the inner wall of the wind shield door, and a first water supply pipeline for connecting to a spray water pipe on the ship unloader is connected between the plurality of first spray nozzles.

[0012] Preferably, each of the second spray mechanisms includes a plurality of second spray assemblies spaced apart in front and rear directions at the upper end of the wind shield, each of the spray assemblies includes a support, an angle bracket and a plurality of second spray nozzles, the support is fixed to the upper end of the wind shield, the angle bracket is connected to the upper end of the support, a plurality of the second spray nozzles are arranged on the angle bracket, and a second water supply pipeline for connecting to a spray water pipe on the ship unloader is connected between the plurality of the second spray nozzles.

[0013] Preferably, the angle bracket includes a first plate body and a second plate body connected to each other, the lower end of the first plate body is connected to the support, and the angle between the first plate body and the horizontal plane is less than 90°, and the angle formed between the second plate body and the first plate body ranges from 91° to 180°.

[0014] Preferably, the angle bracket is connected to the support via a friction hinge, and an anti-overturning spring is connected between the angle bracket and the support.

[0015] Preferably, the lifting mechanism includes two groups of lifting components located on both sides of the lifting curtain, each of the lifting components includes a winch, a wire rope and a weight, a pulley group is provided on the wind shield door, one end of the wire rope is connected to the winch after passing through the pulley group, and the other end of the wire rope is connected to the weight, and the wire rope is also provided with a connecting piece fixed to the lifting curtain.

[0016] Preferably, the third spray mechanism includes a reinforcing rod and a plurality of third spray nozzles, the reinforcing rod is transversely fixed to the upper part of the lifting curtain, the plurality of third spray nozzles are fixed on the reinforcing rod at intervals, and the plurality of third spray nozzles are connected to each other by a third water supply pipeline for connecting to a spray water pipe on the ship unloader.

[0017] Compared with the prior art, the advantages of the present invention are that the device forms a relatively closed space through the combination of multi-layer spraying and lifting curtains, which can effectively control the dust generated by the grab operation and improve the dust blocking effect, while optimizing the utilization of water resources and improving environmental protection and operating efficiency.

[0018] Specifically, the device is provided with two first spray mechanisms and two second spray mechanisms, which are respectively located on the inner wall and the upper end of the wind shield door, to spray the inner side and the upper side of the wind shield door, effectively preventing dust from overflowing from the inner side and the upper side of the wind shield door, and the lifting curtain can be lowered between the wind shield doors to form a relatively closed space, further enhancing the dust blocking effect. At the same time, the third spray mechanism on the upper part of the lifting curtain can spray the area behind the lifting curtain, further improving the dust blocking effect. The design utilizes multi-layer spraying and lifting curtains, which can not only effectively control dust overflow, but also save water resources. Compared with the traditional sprinkler system, the spray range of the device is more precise, the water mist coverage is more comprehensive, and the corresponding spray mechanism can be selected according to the actual situation, which effectively reduces the consumption of water resources and improves the environmental protection effect. In addition, the lifting curtain design of the device can be adjusted according to the actual operation needs. It rises during the grab operation to form a relatively closed space to improve the dust blocking effect, and descends in the non-operating state to facilitate ventilation and improve the operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. It is obvious that the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is the front view of the utility model;

[0021] Figure 2 It is a top view of the utility model;

[0022] Figure 3 This is a schematic diagram of the state of the corner bracket of the utility model when being adjusted;

[0023] Figure 4 This is a schematic diagram of the structure of the lifting curtain and the lifting mechanism in the present utility model;

[0024] In the figure, 1, wind shield door; 2, first spray mechanism; 3, second spray mechanism; 4, lifting curtain; 5, lifting mechanism; 6, third spray mechanism; 7, first spray nozzle; 8, first water supply pipeline; 9, second spray assembly; 10, support; 11, angle bracket; 12, second spray nozzle; 13, second water supply pipeline; 14, first plate body; 15, second plate body; 16, friction hinge; 17, anti-overturning spring; 18, lifting assembly; 19, winch; 20, wire rope; 21, weight; 22, pulley block; 23, connector; 24, reinforcing rod; 25, third spray nozzle; 26, third water supply pipeline. DETAILED DESCRIPTION

[0025] 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1: As shown in the figure, a dust suppression device for a bridge-type grab ship unloader includes two oppositely arranged wind shield doors 1, and also includes:

[0027] Two first spraying mechanisms 2 are arranged on the inner wall of the corresponding windshield door 1 and are used to spray the inner area of ​​the windshield door 1;

[0028] Two second spraying mechanisms 3 are arranged at the upper ends of the corresponding windshield doors 1 and are used to spray the area above the windshield doors 1;

[0029] The lifting curtain 4 is located between the rear sides of the two wind shield doors 1, and the lower part of the lifting curtain 4 is fixed between the lower parts of the two wind shield doors 1. The upper part of the lifting curtain 4 can move up and down through the lifting mechanism 5. The upper part of the lifting curtain 4 is also provided with a third spraying mechanism 6 for spraying the rear area of ​​the wind shield door 1.

[0030] Embodiment 2: As shown in the figure, different from Embodiment 1, each first spray mechanism 2 includes a plurality of first spray nozzles 7, and the plurality of first spray nozzles 7 are distributed in an array on the inner wall of the wind shield door 1, and the plurality of first spray nozzles 7 are connected by a first water supply pipeline 8 for connecting to the spray water pipe on the ship unloader.

[0031] This design can more comprehensively cover the inner area of ​​the windshield door 1, improve the spraying effect, simplify the piping system, save water resources, and improve environmental protection benefits. Specifically, the array distribution of multiple first spray nozzles 7 can form a more dense water mist spraying area, increase the spraying range and water mist coverage density, and thus enhance the spraying effect. This design is more effective than the traditional single spraying method in preventing dust from overflowing from the inner side of the windshield door 1. The use of the first water supply pipeline 8 to connect multiple first spray nozzles 7 to the spray water pipe on the ship unloader can centrally control the water flow, save water resources, and improve environmental protection benefits. Compared with the traditional method, this design simplifies the piping system and reduces costs.

[0032] In this embodiment, each second spray mechanism 3 includes a plurality of second spray assemblies 9 spaced apart in front and back at the upper end of the wind shield door 1, each spray assembly includes a support 10, a corner bracket 11 and a plurality of second spray nozzles 12, the support 10 is fixed to the upper end of the wind shield door 1, the corner bracket 11 is connected to the upper end of the support 10, the plurality of second spray nozzles 12 are arranged on the corner bracket 11, and the plurality of second spray nozzles 12 are connected to each other by a second water supply pipeline 13 for connecting to the spray water pipe on the ship unloader.

[0033] In the above structure, the front-to-back spacing of multiple second spray components 9 can effectively expand the spraying area, ensure more comprehensive coverage of the area above the wind shield door 1, and effectively prevent dust from overflowing from the top. The traditional single spraying method is unable to effectively cover the entire upper area of ​​the wind shield door 1 due to the limited spraying range, causing dust to easily escape from this area. The present design can spray more comprehensively and improve the dust blocking effect through the reasonable layout of multiple spray components, and the design of the second water supply pipeline 13 can centrally control the water flow, effectively reduce water resource consumption, and improve environmental protection benefits. Compared with the traditional method, this design simplifies the piping system and reduces engineering costs.

[0034] In this embodiment, the angle bracket 11 includes a first plate body 14 and a second plate body 15 connected to each other, the lower end of the first plate body 14 is connected to the support 10, and the angle between the first plate body 14 and the horizontal plane is less than 90°, and the angle formed between the second plate body 15 and the first plate body 14 ranges from 91° to 180°.

[0035] In the dust suppression device of the bridge-type grab ship unloader, the angle frame 11 of the second spray assembly 9 adopts a first plate body 14 and a second plate body 15 connected to each other, and through the design of a specific angle, the spraying effect and structural stability are effectively improved, and the dust blocking effect can also be improved.

[0036] Specifically, the angle between the first plate 14 and the horizontal plane is less than 90°, which means that the first plate 14 is in an inclined state, which enables the spray nozzle to spray water mist more effectively to cover the area above the wind shield 1, rather than directly spraying vertically, thereby improving the spraying effect. The angle formed between the second plate 15 and the first plate 14 ranges from 91° to 180°, which means that the second plate 15 has a certain inclination angle relative to the first plate 14. The design of this angle can effectively increase the stability of the second spray assembly 9 to avoid shaking or deformation due to the impact of the spraying water flow. At the same time, this angle can also adjust the spray direction of the spray nozzle, so that the water mist is sprayed more concentratedly to the area above the wind shield 1, thereby improving the spraying efficiency.

[0037] Embodiment 3: As shown in the figure, different from Embodiment 2, the angle bracket 11 is connected to the support 10 via a friction hinge 16 , and an anti-overturning spring 17 is connected between the angle bracket 11 and the support 10 .

[0038] In the above structure, the friction hinge 16 is a connection method that allows parts to rotate within a certain range. It can control the rotation direction and amplitude through friction. In this design, the friction hinge 16 allows the angle bracket 11 to adjust the direction of the spray nozzle within a certain range, which is convenient for adjustment according to actual conditions and improves the spray effect. The anti-overturning spring 17 plays a role in assisting the fixing of the angle bracket 11. When the angle bracket 11 is subjected to external impact or vibration, the anti-overturning spring 17 can provide additional support force to prevent the angle bracket 11 from excessive shaking or overturning, thereby ensuring the stability of the spray assembly. This design can not only improve the spray effect, but also effectively prevent the spray assembly from falling off due to vibration or impact, thereby improving the safety of the device. At the same time, the design of the friction hinge 16 ensures the flexible adjustment of the spray nozzle to adapt to different operating requirements and environmental changes.

[0039] In this embodiment, the lifting mechanism 5 includes two groups of lifting components 18 located on both sides of the lifting curtain 4, each lifting component 18 includes a winch 19, a wire rope 20 and a weight 21, and a pulley group 22 is provided on the wind shield door 1. One end of the wire rope 20 is connected to the winch 19 after passing through the pulley group 22, and the other end of the wire rope 20 is connected to the weight 21. The wire rope 20 is also provided with a connecting piece 23 fixed to the lifting curtain 4.

[0040] In the above structure, one end of the steel wire rope 20 is connected to the winch 19 after passing through the pulley block 22, and the other end is connected to the weight 21. The lifting and lowering control of the lifting curtain 4 is realized through the winding of the winch 19 and the counterweight of the weight 21. During the lifting process, the connecting piece 23 on the steel wire rope 20 is fixedly connected with the lifting curtain 4 to ensure that the lifting curtain 4 can follow the movement of the steel wire rope 20 to achieve up and down movement. The pulley block 22 set on the windshield door 1 can effectively change the movement direction of the steel wire rope 20, facilitate the operation of the winch 19, and also reduce the friction of the steel wire rope 20, thereby improving the lifting efficiency.

[0041] This design structure has the following advantages:

[0042] High stability: the weight 21 can balance the weight of the lifting curtain 4 and provide additional sliding resistance to improve the stability of the lifting process;

[0043] Safe and reliable: Through the cooperation of the winch 19 and the weight 21, the lifting speed can be effectively controlled to prevent the lifting curtain 4 from falling quickly, thereby improving the safety of operation;

[0044] Easy to operate: the lifting is controlled by the winch 19, which is easy and convenient to operate and reduces the labor intensity of the operator.

[0045] In this embodiment, the third spray mechanism 6 includes a reinforcing rod 24 and a plurality of third spray nozzles 25. The reinforcing rod 24 is transversely fixed to the upper part of the lifting curtain 4. The plurality of third spray nozzles 25 are fixed on the reinforcing rod 24 at intervals. The plurality of third spray nozzles 25 are connected to each other by a third water supply pipeline 26 for connecting to the spray water pipe on the ship unloader.

[0046] In the above structure, the reinforcing rod 24 is transversely fixed to the upper part of the lifting curtain 4, providing a stable support for the third spray nozzle 25, ensuring that the spray nozzle can always maintain a stable spray direction and improve the spray effect. Multiple third spray nozzles 25 are fixed on the reinforcing rod 24 at intervals, which can more comprehensively cover the rear area of ​​the lifting curtain 4 and prevent dust from escaping from the area. The multiple third spray nozzles 25 are connected to the spray water pipe on the ship unloader through the third water supply pipeline 26, which can centrally control the water flow, effectively reduce water resource consumption, and improve environmental protection benefits.

[0047] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A dust suppression device for a bridge-type grab ship unloader, comprising two oppositely arranged wind shield doors, characterized in that: Also includes, Two first spraying mechanisms are arranged on the inner wall corresponding to the wind shield door, and are used to spray the inner area of ​​the wind shield door; Two second spraying mechanisms are arranged at the upper ends of the corresponding wind shield doors, and are used to spray the area above the wind shield doors; A lifting curtain is located between the rear sides of the two wind shield doors, and the lower part of the lifting curtain is fixed between the lower parts of the two wind shield doors. The upper part of the lifting curtain can move up and down through a lifting mechanism. The upper part of the lifting curtain is also provided with a third spraying mechanism for spraying the area behind the wind shield doors.

2. The dust suppression device of a bridge grab ship unloader according to claim 1, characterized in that: Each of the first spray mechanisms comprises a plurality of first spray nozzles, which are distributed in an array on the inner wall of the wind shield door, and a first water supply pipeline for connecting to a spray water pipe on the ship unloader is connected between the plurality of first spray nozzles.

3. The dust suppression device of a bridge grab ship unloader according to claim 1, characterized in that: Each of the second spray mechanisms includes a plurality of second spray assemblies spaced apart in front and rear directions at the upper end of the wind shield, and each of the spray assemblies includes a support, an angle bracket and a plurality of second spray nozzles, the support is fixed to the upper end of the wind shield, the angle bracket is connected to the upper end of the support, a plurality of the second spray nozzles are arranged on the angle bracket, and a second water supply pipeline for connecting to a spray water pipe on the ship unloader is connected between the plurality of the second spray nozzles.

4. The dust suppression device for a bridge-type grab ship unloader according to claim 3 is characterized in that: The angle bracket includes a first plate body and a second plate body connected to each other, the lower end of the first plate body is connected to the support, and the angle between the first plate body and the horizontal plane is less than 90°, and the angle formed between the second plate body and the first plate body ranges from 91° to 180°.

5. The dust suppression device for a bridge-type grab ship unloader according to claim 3, characterized in that: The angle bracket is connected to the support through a friction hinge, and an anti-overturning spring is connected between the angle bracket and the support.

6. The dust suppression device of a bridge grab ship unloader according to claim 1, characterized in that: The lifting mechanism includes two groups of lifting components located on both sides of the lifting curtain, each of the lifting components includes a winch, a wire rope and a weight, a pulley group is provided on the wind shield door, one end of the wire rope is connected to the winch after passing through the pulley group, and the other end of the wire rope is connected to the weight, and the wire rope is also provided with a connecting piece fixed to the lifting curtain.

7. The dust suppression device of a bridge grab ship unloader according to claim 1, characterized in that: The third spray mechanism includes a reinforcing rod and a plurality of third spray nozzles, wherein the reinforcing rod is transversely fixed to the upper part of the lifting curtain, the plurality of third spray nozzles are fixed on the reinforcing rod at intervals, and the plurality of third spray nozzles are connected to each other by a third water supply pipeline for connecting to a spray water pipe on the ship unloader.

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