Rail Mobile Screw Coal Ship Unloader Manufacturers, Suppliers

Rail Mobile Screw Coal Ship Unloader

In 2018, the company independently researched, developed, manufactured, and successfully applied to the coal transport system of a power plant in China. By relying on the bi-directional horizontal rotation of the rotating tower, the horizontal beam on the tower is bent. The amplitude is shifted, the vertical arm is swung back and forth and the door is moved, the reloader can realize the three-dimensional movement to track the material position and retrieve the material, and then the material is lifted to the horizontal screw by the vertical screw machine. Then the material in the silo is automatically unloaded to the conveying system on the shore by the discharging device. The advantages of this model are as follows:

1, Ultra-wear-resistant: Due to the high grinding properties of coal and the mixture of a large number of high-hardness impurities such as coal gangue, the general takeout environment is harsh and easy to wear, resulting in abnormal early wear of the takeout, thereby reducing the service life. The inlet of the reclaimer developed by Aotuo and the parts at the bottom that are easy to wear are coated with a layer of ultra-high hardness and ultra-wear-resistant alloy layer, whose hardness can reach 75HRC, greatly improving the life of the reclaimer, the service life of the whole machine can exceed 25 years, and the service life of the wearing parts exceeds 2 million tons.

2, high efficiency: the average operation efficiency of coal screw ship unloader can reach 70-75%, and the output can reach 2000 tons/hour. Mainly benefit from:

① Equipped with an efficient special coal feeder, can maintain a constant material-grabbing capacity;

② The unloading and conveying of materials is a continuous process, and the vacancy rate of equipment is small;

(3) The special feeder is small in size (compared with bucket wheel type, chain bucket type, grab bucket type), flexible and simple operation;

④ The remaining amount of cleaning is small, and the thickness of the remaining material is about 250mm. Can greatly shorten the clearance time.

Combining the above points, the working efficiency of coal screw ship unloaders can be 15-25% higher than that of other types of ship unloaders.

3, environmental protection: environmental protection screw coal unloader has a completely closed conveying system, during the coal unloading process, there will be no material leakage, dust impact is strictly controlled, and almost no dust escapes during the coal unloading process; Can meet the port industry and national emission standards. The dry fog dust suppression system configured by the discharge device can fully combine the dry fog and dust and remove the dust using its own space to achieve an efficient dust removal effect. Among all the continuous ship unloaders, coal screw ship unloaders have the better environmental protection effect.

4, energy saving: due to the continuity of coal screw ship unloader material delivery, it is easy to realize the whole closed-loop control and automatic adjustment from the take-up end to the discharge end, and always make the ship unloader in a better working condition. It minimizes the non-functional loss, so that the unit energy consumption is between 0.6-1.0KWH/h, and the ton energy consumption is about 1 degree, which has obvious advantages of energy saving and environmental protection compared with the grab coal unloader, and reaches the energy saving level.

5, wide applicability: can be applied to 800 ~ 50000 DWT coal bulk carrier unloading water content of 20%, particle size of 200mm lump coal;

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Production capacity	200-3000t/h (calculated based on coal density)
Applicable ship type	500-200000 DWT
Suitable for lump coal with particle size	≤400mm
Energy consumption	＜0.8 kWh/t

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News Updates

Admin 2024-03-21
Rail Mobile Screw Coal Ship Unloader

In 2018, the company independently researched, developed, manufactured, and successfully applied to the coal transport system of a...
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Industry knowledge

What types of ships and port environments are Rail Mobile Screw Coal Ship Unloader suitable for?

Rail Mobile Screw Coal Ship Unloader is mainly suitable for the following types of ships and port environments:

Bulk carriers: especially bulk carriers carrying large amounts of coal. Since coal is a bulk cargo, the use of screw conveying can effectively unload coal from the ship's hold continuously without frequent grabbing and handling, thereby improving unloading efficiency.

Large ships: Due to its efficient unloading capacity and flexibility, Rail Mobile Screw Coal Ship Unloader is particularly suitable for handling large amounts of coal on large ships. This equipment can complete the unloading of large amounts of coal in a relatively short period of time, reducing the ship's stay time in the port.

Coal carriers of various tonnages: From small and medium-sized to ultra-large coal carriers, as long as their cabin structure and cargo characteristics are suitable for screw conveying, Rail Mobile Screw Coal Ship Unloader can be considered for unloading.

Ports with different water conditions: This unloader has the ability to adapt to a variety of water conditions, including deep-water ports, shallow-water ports, inland ports, and coastal ports. Its track movement system allows the equipment to operate at different positions and angles to adapt to different berths and ship positions.

Ports with high environmental requirements: Since the screw conveying method can better control dust flying than the traditional method, Rail Mobile Screw Coal Ship Unloader has become an ideal choice for ports with high environmental requirements. It can reduce dust pollution during coal unloading and protect the port environment and the health of workers.

What are the precautions for the maintenance and troubleshooting of the Rail Mobile Screw Coal Ship Unloader?

The maintenance and troubleshooting of the Rail Mobile Screw Coal Ship Unloader is a key link to ensure its efficient and stable operation. Here are some precautions:

Maintenance precautions
Regular inspection and maintenance:
Daily inspection: A comprehensive visual inspection of the equipment should be carried out before and after daily operations, including the screw conveyor, track system, transmission system, electrical system, etc., to ensure that there is no abnormal wear, looseness or damage to each component.
Regular maintenance: According to the operating instructions and maintenance manual of the equipment, a detailed regular maintenance plan should be formulated, including changing lubricating oil, cleaning filters, checking fasteners, etc., to ensure that the equipment is in good working condition.

Lubrication management:
Regularly lubricate each lubrication point of the equipment to ensure that the friction pairs of each moving part are in good lubrication state and reduce the occurrence of wear and failure.
Use lubricating oil and grease that meet the requirements, and avoid mixing lubricating oils of different brands and models.

Electrical system maintenance:
Regularly check the wiring, plugs, switches and other components of the electrical system to ensure that the electrical connection is reliable and there is no looseness, corrosion or short circuit.
Clean and dustproof the electrical components such as motors and control cabinets to prevent dust and moisture from damaging the electrical system.

Safety device inspection:
Regularly check the safety devices of the equipment, such as limit switches, emergency stop buttons, protective covers, etc., to ensure that they function normally and can quickly cut off the power supply or stop the equipment in an emergency.
Record and file management:
Establish a complete equipment maintenance record file, and record in detail the time, content, replacement parts and other information of each maintenance, so as to provide a basis for the subsequent management and troubleshooting of the equipment.

Precautions for troubleshooting
Troubleshooting:
When the equipment fails, first conduct a preliminary investigation based on the fault phenomenon to determine the approximate scope and possible causes of the fault.
Use professional detection tools and equipment to conduct detailed inspection and testing of the faulty parts to accurately determine the cause of the fault.

Troubleshooting:
Take appropriate treatment measures according to the cause of the fault, such as replacing damaged parts, adjusting equipment parameters, repairing electrical faults, etc.
In the process of troubleshooting, the safety operating procedures should be strictly followed to ensure the safety of personnel and equipment.

Fault prevention:
Summarize and analyze the handled faults, find out the root causes and potential hidden dangers of the faults, formulate corresponding preventive measures and improvement measures to avoid similar faults from happening again.

Professional maintenance:
For some complex faults or faults that require professional maintenance skills, the equipment manufacturer or professional maintenance organization should be contacted in time for handling to avoid greater losses or safety hazards caused by self-handling.

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