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Composite flying dust inhibitor and preparation method thereof

An inhibitor and composite technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of small manganese dioxide particles, limited use range, difficult separation, etc., to increase collision efficiency and frequency, increase effective Specific surface area, convenient and efficient use

Inactive Publication Date: 2018-03-23
安徽铭能保温科技有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, manganese dioxide particles are small and difficult to separate, which limits its application range

Method used

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Experimental program
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Effect test

Embodiment Construction

[0019] A compound dust suppressant, prepared by the following method:

[0020] (1) Add sodium alginate to 20% ethanol solution at a solid-to-liquid ratio of 4:1g / mL, then add dimethyl sulfate with a volume fraction of 2% to it, heat up to 50°C, react for 3 hours and then suction filter , the product is dried for subsequent use;

[0021] (2) Put the magnesia into a high-temperature furnace, bake it at 500°C for 60 minutes, take it out after cooling, crush it through a 30-mesh sieve, put it into clean water and boil it for 30 minutes, cool to room temperature and filter to remove floating ash and impurities in the water , and then placed in a drying oven to dry for 10 hours, the dried powder was added to the potassium permanganate solution with a mass fraction of 2.7% according to the solid-to-liquid ratio of 1:25g / mL, soaked for 7 hours, filtered out and rinsed with water until After the washing water is no longer turbid and has the same pH value as the ultrapure water, it is ...

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Abstract

The invention discloses a composite flying dust inhibitor and a preparation method thereof. The composite flying dust inhibitor is prepared from the following raw materials: a urease preparation, sodium alginate, urea, calcium chloride, magnesia, ethyl orthosilicate, triiron tetraoxide powder and the like. The inhibitor provided by the invention adopts a granular structure, an outer layer is coated with the urease preparation, and urease is separated from internal components by the modified sodium alginate. The inhibitor is diluted in water when in use, and the urease accelerates the hydrolysis of urea to react with the calcium chloride to generate calcium carbonate. Flying dust particles are bonded together to form large particles by the bonding performance. Meanwhile, through the large area adsorption of the modified magnesia, the fast and efficient inhibition of flying dust is effectively ensured. Compared with a traditional dust inhibitor, the dust inhibition effect is greatly improved, and the service cost is greatly decreased. The composite flying dust inhibitor and the preparation method thereof are suitable for being generally popularized and used.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a composite dust inhibitor and a preparation method thereof. Background technique [0002] In recent years, people have paid more and more attention to the dust pollution caused by exposed muddy land, dust particles produced in activities such as house construction, road and pipeline construction, house demolition, and material stacking. Flying dust has greatly affected the living environment of urban residents, and also increased the difficulty of urban beautification. Among them, the floating dust enters the human respiratory organs with the human breath, and the larger dust particles are trapped in the respiratory tract and are easily excreted, while most of the dust with a particle size of less than 5 microns can enter the human lungs and cause various pneumoconiosis. And exacerbated the occurrence of human respiratory diseases. [0003] Chemical dust suppr...

Claims

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Application Information

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IPC IPC(8): C09K3/22
CPCC09K3/22
Inventor 杨华亮
Owner 安徽铭能保温科技有限公司
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