Dust collection and suppression device of bridge type grab ship unloader

Abstract

The invention discloses a dust collection and suppression device of a bridge type grab ship unloader, and belongs to the technical field of ship unloaders, the dust collection and suppression device comprises a discharge port and box bodies symmetrically arranged about the two sides of the discharge port, baffles symmetrical about the discharge port are arranged at the tops of the box bodies, fan assemblies are arranged on the upper portions of the interiors of the box bodies, and pipelines are arranged on the outer sides of the fan assemblies; a filtering system is arranged in the middle of the pipeline; the filtering system comprises a filtering plate, a discharging bin door is arranged on the side of the filtering plate, and a dust collecting bag is connected to the lower portion of the discharging bin door. According to the dust collection and suppression device of the bridge type grab ship unloader, through the combined action of the fan assembly, the baffle and the filtering system, smoke dust dissipation is prevented, the dust emission concentration is reduced to be below the environmental protection standard, the port environment and operation conditions are effectively improved, the dual safety of operators and the environmental conditions is guaranteed, and the working efficiency is improved. Meanwhile, the system has the advantages of low energy consumption, convenience in maintenance, high environmental adaptability and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of ship unloaders, and in particular to a dust suction and dust suppression device for a bridge type grab ship unloader. Background Art

[0002] A ship unloader is a large bulk machine used for unloading ships at bulk cargo terminals. It mainly consists of a boom belt conveyor, a transition belt conveyor, a tail car, a traveling device, a gantry, a tower, a slewing device, etc., and can perform continuous ship unloading operations. It is one of the indispensable important devices in modern ports and is widely used in large bulk material distribution centers in industries such as energy, power, metallurgy, and ports. The ship unloader plays a crucial role in the ship unloading operation at the bulk cargo terminal and is one of the indispensable important devices in a modern port.

[0003] Currently, when unloading bulk cargo in particulate state such as coal and sand by a ship unloader, a large amount of dust and smoke often drifts into the air. If the drifting dust and smoke cannot be processed in time, it will not only seriously damage the environment, but also cause serious harm to the respiratory tract of the terminal workers. Therefore, most terminals will use the method of sprinkling water for dust suppression when unloading bulk cargo from ships by a ship unloader, increasing the material humidity by spraying water to reduce dust generation. If seawater that is easy to obtain is directly used for spraying dust suppression, the salt in it is likely to cause corrosion of the ship unloader and ship equipment, shortening the equipment life and causing damage to the ship equipment. And if fresh water is used for spraying, a large amount of fresh water needs to be consumed every day, greatly increasing the loading cost. Moreover, in a low-temperature environment, the sprayed water is easy to freeze, affecting the operation safety. In addition to sprinkling dust suppression, there is also the mechanical sealing method, which reduces dust overflow by sealing the gap between the discharge port of the ship unloader and the cabin. However, this method has high requirements for equipment accuracy, and it is difficult to ensure the sealing effect when the ship shakes. There are also electrostatic dust removal methods and bag dust removal methods, etc. These methods all have disadvantages such as low dust suction efficiency and single filtration system more or less.

[0004] In addition to the drawbacks of the above dust removal and dust suppression methods, after the bulk cargo forms a pile and forms a conical bulk cargo pile, the bulk cargo will inevitably slide or collapse along the conical slope under the action of gravity, which will also cause a certain amount of dust and smoke to escape, and over time, it will also cause pollution and harm to the staff. Summary of the Invention

[0005] The purpose of the present invention is to provide a dust suction and dust suppression device for a bridge type grab ship unloader. Through the combined action of a fan assembly, a baffle, and a filtration system, it prevents the escape of dust and smoke, reduces the dust emission concentration to below the environmental protection standard, effectively improves the port environment and operating conditions, ensures the dual safety of operating personnel and environmental conditions, and at the same time has the advantages of low energy consumption, convenient maintenance, and strong environmental adaptability.

[0006] To achieve the above object, the present invention provides a dust suction and suppression device for a bridge-type grab ship unloader, which includes a discharging opening and boxes symmetrically arranged on both sides of the discharging opening. A baffle symmetric to the discharging opening is arranged on the top of the box. A fan assembly is arranged above the interior of the box. A pipeline is arranged outside the fan assembly. A filtering system is arranged at the middle position of the pipeline.

[0007] Preferably, the fan assembly includes fan blades driven by a motor, and a sealed connecting sleeve is arranged at the connection between the fan blades and the motor.

[0008] Preferably, an air inlet window is arranged on the side of the box, above the discharging opening, and parallel to the fan blades.

[0009] Preferably, the inlet of the pipeline is parallel to the fan blades, and the outlet of the pipeline is connected to an exhaust window arranged at the bottom of the box.

[0010] Preferably, the filtering system includes filter plates, a discharging bin door is arranged on the side of the filter plates, and a dust collection bag is connected below the discharging bin door.

[0011] Preferably, there is at least one set of the filter plates, the discharging bin door and the dust collection bag, and the filter plates are arranged in parallel.

[0012] Preferably, the filter plates are movably arranged, and the pore diameters of the filter plates are not less than one kind.

[0013] Therefore, the present invention adopts the above dust suction and suppression device for a bridge-type grab ship unloader. Through the combined action of the fan assembly, the baffle and the filtering system, it prevents the escape of smoke and dust, reduces the dust emission concentration to below the environmental protection standard, effectively improves the port environment and working conditions, and ensures the double safety of operating personnel and environmental conditions. Compared with the prior art, it has the following advantages:

[0014] (1) Multi-effect collaborative dust suppression: The baffle is used to block the diffusion of materials, the fan assembly sucks the dust-containing air, and the multi-stage filtering system purifies the air. The three work together to achieve efficient dust suppression.

[0015] (2) Modular design: The filter plates, the fan assembly, etc. can be quickly disassembled and replaced, which is convenient for maintenance and upgrading.

[0016] (3) Environmental protection and energy saving: It does not require a large amount of water, reduces water resource consumption and equipment corrosion. At the same time, the recycled dust can be reused to achieve resource recycling.

[0017] The technical solution of the present invention will be further described in detail below through the drawings and embodiments. Description of the Drawings

[0018] Figure 1It is a schematic diagram of the external structure of an embodiment of the dust suction and suppression device of a bridge-type grab ship unloader according to the present invention;

[0019] Figure 2 It is a schematic diagram after removing the box body of an embodiment of the dust suction and suppression device of a bridge-type grab ship unloader according to the present invention;

[0020] Figure 3 It is a schematic diagram of the fan assembly of an embodiment of the dust suction and suppression device of a bridge-type grab ship unloader according to the present invention;

[0021] Figure 4 It is an enlarged schematic diagram of the structure at position A of an embodiment of the dust suction and suppression device of a bridge-type grab ship unloader according to the present invention.

[0022] Reference numerals

[0023] 1, discharging opening; 2, box body; 3, air inlet window; 4, fan blade; 5, motor; 6, pipeline; 7, filter plate; 8, discharge bin door; 9, dust collection bag; 10, exhaust window; 11, baffle; 12, sealing connection sleeve. Detailed implementation manners

[0024] The technical solutions of the present invention will be further described below with reference to the drawings and embodiments.

[0025] Unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those of ordinary skill in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before the term cover the elements or objects listed after the term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object to be described changes, the relative positional relationship may also change accordingly.

[0026] Embodiment 1

[0027] This embodiment provides a dust suction and suppression device for a bridge-type grab ship unloader, and its external structure is as shown in Figure 1 shown, and the internal structure after removing the external box body is as shown in Figure 2As shown in the figure. The overall structure of the dust suction and suppression device of a bridge-type grab ship unloader provided in this embodiment includes a discharge opening 1 and boxes 2 symmetrically arranged on both sides of the discharge opening 1. A baffle 11 symmetric to the discharge opening 1 is provided at the top of the box 2, and the baffle 11 can effectively prevent the dust from scattering when the grab is opened. The shape and size of the discharge opening 1 can be adjusted according to the material characteristics and ship unloading requirements. The box 2 is made of high-strength steel and its surface is coated with an anti-corrosion coating to adapt to the working environment of the port which is humid, salty, and has many collisions. The baffle 11 can be adjusted in angle through a hydraulic cylinder or an electric push rod to adapt to the falling speed and diffusion range of different materials. Above the interior of the box 2, a fan assembly is provided. A pipeline 6 is provided outside the fan assembly, and a filtration system is provided at the middle position of the pipeline 6.

[0028] The fan assembly is as Figure 3 shown, and includes fan blades 4. The fan blades 4 are driven by a motor 5. A sealed connecting sleeve 12 is provided at the connection between the fan blades 4 and the motor 5. The sealed connecting sleeve 12 effectively ensures that the connection position between the fan blades 4 and the motor 5 is not affected by dust and humid environment, and can operate stably in a harsh environment, avoiding the failure of the fan assembly function. An air inlet window 3 is provided on the side of the box 2. The air inlet window 3 is located above the discharge opening 1, and the air inlet window 3 is arranged parallel to the fan blades 4. The inlet of the pipeline 6 is parallel to the fan blades 4, and the outlet of the pipeline 6 is connected to an exhaust window 10 provided at the bottom of the box 2. The area of the air inlet window 3 is optimized according to the handling capacity of the ship unloader and the dust diffusion speed. The air inlet window 3, the fan blades 4, and the inlets and outlets of the pipeline 6 form a complete air duct to ensure smooth air circulation.

[0029] The filtration system includes a filter plate 7. A discharge bin door 8 is provided on the side of the filter plate 7, and a dust collection bag 9 is connected below the discharge bin door 8. The filter plate 7, the discharge bin door 8, and the dust collection bag 9 are set in groups, and there are no less than one group. The multiple groups of filter plates 7 are arranged in parallel. The detailed part at the filter plate 7 is as Figure 4 shown. The filter plate 7 is movably arranged, and can be directly inserted to complete the installation, and can be directly pulled out when cleaning is required. And the pore diameter of the filter plate 7 is not less than one kind, and there are multiple specifications, which can be selected according to the specific working conditions. Generally, the pore diameter of the filter plate 7 gradually decreases from top to bottom to achieve layer-by-layer filtration.

[0030] When the dust suction and suppression device described in this embodiment is in operation, check the integrity and appearance quality of each component before installation to ensure that all components are tightly connected. Insert the filter plates 7 in order from the largest pore diameter to the smallest to ensure that the filter plates 7 fit tightly with the pipeline 6. Adjust the angles of the symmetric baffles 11 provided at the top of the box body 2 to prevent the materials falling from the grab from scattering and floating. After the motor 5 is powered on, it drives the fan blade 4 to rotate and work. At the same time, the air inlet window 3 sucks in the floating smoke and dust. The air inlet window 3, the fan assembly and the baffle 11 work together to prevent the smoke and dust from floating while filling the cabin, achieving the effect of dust suppression. When the smoke and dust are brought into the pipeline 6, they are filtered by the filter plates 7 with different pore diameters and then gather at the discharge bin door 8. When a certain amount is reached, they flow into the dust collection bag 9 through the discharge bin door 8. The smoke and dust with different particle sizes in the dust collection bag 9 can be processed subsequently as pigments, fuels, etc., achieving the purpose of waste utilization.

[0031] In addition, it should be noted that the device needs to be maintained. Regularly check the wear conditions of the box body 2, the baffle 11, the fan assembly, the pipeline 6 and the filtration system, and replace the damaged components in time. Clean the dust in the dust collection bag 9 in time. When cleaning, the power supply of the equipment should be turned off first to prevent safety accidents. Pay attention to the blockage condition of the filter plate 7. If the resistance of the filter plate is too large, it should be cleaned or replaced. Conduct daily maintenance on the motor 5, including adding lubricating oil before operation and checking the insulation resistance of the motor 5 winding, etc.

[0032] Therefore, the present invention adopts the above-mentioned dust suction and suppression device for a bridge-type grab unloader. Through the combined action of the fan assembly, the baffle and the filtration system, it prevents the escape of smoke and dust, reduces the dust emission concentration to below the environmental protection standard, effectively improves the port environment and working conditions, and ensures the double safety of the operating personnel and the environmental conditions.

[0033] 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 them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present invention, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A dust suction and dust suppression device for a bridge-type grab ship unloader, characterized in that: It includes a feeding opening and boxes symmetrically arranged on both sides of the feeding opening. A baffle is arranged at the top of the box symmetrically with respect to the feeding opening. Above the interior of the box, a fan assembly is provided. A pipe is arranged outside the fan assembly, and a filtering system is arranged at the middle position of the pipe.

2. The dust suction and suppression device of a bridge-type grab ship unloader according to claim 1, characterized in that: The fan assembly includes fan blades driven by a motor, and a sealed connecting sleeve is arranged at the connection between the fan blades and the motor.

3. The dust suction and suppression device of a bridge-type grab ship unloader according to claim 2, characterized in that: An air inlet window is arranged on the side of the box, above the feeding opening, and parallel to the fan blades.

4. The dust suction and suppression device for a bridge-type grab ship unloader according to claim 2, characterized in that: The inlet of the pipe is parallel to the fan blades, and the outlet of the pipe is connected to an exhaust window arranged at the bottom of the box.

5. The dust suction and suppression device of a bridge-type grab ship unloader according to claim 1, characterized in that: The filtering system includes filter plates. A discharge bin door is arranged on the side of the filter plates, and a dust collection bag is connected below the discharge bin door.

6. The dust suction and suppression device for a bridge-type grab ship unloader according to claim 5, characterized in that: There is no less than one set of the filter plates, the discharge bin door and the dust collection bag, and the filter plates are arranged in parallel.

7. The dust suction and suppression device of a bridge-type grab ship unloader according to claim 5, characterized in that: The filter plates are movably arranged, and the pore diameters of the filter plates are not less than one kind.

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