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In view of the short storage time, large quantity, and fast cycle of coal storage at the port terminal, Tianjin Port has sprayed a nano-covering agent on coal that has been stacked for more than one week. The agent can form a hard shell on the surface of the coal pile as if it had been sprayed with hair spray. Hydrophilic agents are used for less than 1 week of storage time. This formulation will cause the surface of the coal pile to exhibit a certain degree of induration and thus prevent dusting. Both preparations are environmentally friendly products that are easily degradable and non-polluting. The nanometer coating agent only costs 1 yuan for spraying 1 square meter, and it costs 0.06 yuan for spraying 1 meter of hydrophilic agent, but the price per square meter using traditional rayon cloth is about 6 yuan, and after 3 to 5 uses. Because the damage will not continue to be used, the two formulations not only have good dustproof effect, but also save costs.
It is understood that Tianjin Port is the largest coal export port and distribution center in northern China, with an annual throughput of more than 75 million tons, accounting for more than 45% of the total port cargo throughput. In order to fundamentally solve the problem of coal dust pollution, Tianjin Port has invested 6 billion yuan in succession, and successively shut down the areas with poor dust prevention facilities in the Beijiang Port Area, built a specialized freight yard and docks, and set up the first domestic long distance. Totally enclosed coke conveyor belt promenade with a total length of approximately 8.6 kilometers. It is equipped with the world's advanced long-distance curve tape conveyor, and is connected to the coke specializing loading system of Tianjin Port Nanjiao Coke Terminal Co., Ltd. The design and delivery capacity is 1800. Ton/hour, the annual capacity of Nanjiang Coal Terminal will reach 20 million tons.
Tianjin Port has achieved remarkable results with the use of nanotechnology to treat coal dust
To curb coal dust pollution, Tianjin Port has for the first time adopted a method of spraying nano-covering agent and hydrophilic agent into the coal gangue to avoid dust and achieved remarkable results.