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At present, the environmental protection guidelines, regulations and laws are increasingly strict, and the impact of environmental protection risks on port management during dry bulk cargo loading and unloading becomes more and more common. Port pollution causes a series of environmental impacts, such as regional air pollution and water pollution.
Typical bulk cargoes in the port include grain, animal food, ore, coal and coke, cement, biomass, phosphate and other fertilizers, etc. Loading and unloading these cargoes will produce a large amount of dust. Therefore, controlling the generation of dust is the primary goal to reduce the pollution of dry bulk materials handling in the port.
Different types of dust have different degrees of impact on health, but the most serious impact of dusty goods is on the respiratory system of humans and animals. Ports increasingly need multifunctional, flexible and environmentally friendly material handling equipment. Failure to effectively control the generation of dust will also reduce the output of the dock, resulting in a series of economic losses. However, most material handling equipment is not specially designed for dust suppression.
When handling bulk materials, there are six main parameters that affect dust generation: falling distance, discharging rate, environmental factors, transportation type, and material properties and handling technology.
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With the development of society, the concept of ecological environment protection and green port has been deeply rooted in the port industry and is very imperative. Therefore, the dock will also adapt to the needs of market development and carry out corresponding transformation and upgrading.
The dust pollution in the process of grab discharge is mainly caused by two major links, namely, the material between the grab discharge and the hopper is affected by the environmental wind speed and causes the dust to fly. In addition, the dust rises along the conical surface of the hopper after the material is fed into the hopper.
Chinaming dust suppression and environmental protection hopper adopts a variety of dust and environmental control technologies to solve the above problems, such as the top anti-cross wind shield, dust seal system and integrated pulse dust collector. The high-power fan on the dust collector makes the dust suction wind speed and negative pressure greater than the speed and buoyancy of the dust overflow, so that the dust can be effectively controlled under the negative pressure; The high-efficiency pulse ash cleaning system can blow the dust away from the long-acting filter cartridge, and make the cleaned dust fall back into the hopper.
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This equipment is suitable for various types of ships with all sizes of grab buckets in coastal ports and inland river ports. The unloading efficiency of hopper ranges from 500t/h to 2000t/h. A series of equipments can be produced according to the cargo structure, storage requirements, function selection and other requirements so as to meet all needs of environmental protection in loading and unloading, which are the ideal environmental protection supporting facilities for the bucket unloading process.
This scheme is applicable to cement, chemical fertilizer, dried cassava, grain, iron powder, aluminum oxide, etc. The dust of dust-containing materials is largely suppressed in the process of grab discharge, and the dust can hardly be seen outside the hopper mouth, changing the traditional loading and unloading status of dry bulk cargo. When the dust pollution is controlled, the whole loading and unloading site environment is greatly improved. The pollution injury to the on-site operators is avoided. The clear vision of the operator improves the loading and unloading efficiency. The damage of dust pollution to the equipment is reduced. All the above effectively guarantee the safe production.