An activated carbon feeding device
A feeding device and activated carbon technology, applied in transportation, packaging, conveyors, etc., can solve the problems of activated carbon waste, stable control, and inability to ensure stable dioxin removal efficiency, etc., to achieve improved utilization, reasonable utilization, and reasonable resource effect
Inactive Publication Date: 2016-05-25
INST OF PROCESS ENG CHINESE ACAD OF SCI +1
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Problems solved by technology
In the application of this technology, due to the negative pressure of the flue and semi-dry desulfurization device, when the activated carbon is transported by the general conveying device, the activated carbon will be instantly sucked into the flue or semi-dry desulfurization device due to the negative pressure, resulting in the inaccuracy of the activated carbon. Stable feeding, on the one hand, the input volume of activated carbon cannot be stably controlled, and the removal efficiency of dioxins cannot be guaranteed stably; on the other hand, accurate feeding of activated carbon cannot be realized, which may easily cause waste of activated carbon
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[0042] This implementation takes a steel company 180m 2 The sintering machine is taken as an example to illustrate, in which the air conveying chute transports activated carbon at a speed of 30kg / h, and the amount of dioxin is 1.2ngTEQ / Nm 3 . The removal efficiency of dioxin is required to reach more than 80%, and the emission standard of dioxin is 3 . This device is not limited to the transportation of activated carbon materials, but can also be used for other materials that require precise and stable feeding.
[0043] In the present embodiment, 15 dividing plates are set, and the area size is 4cm 2 , the distance between each grid is 3cm, that is, the volume of the partition plate slot is 12cm 3 . The total length of the large conveyor belt is 45cm, and a large variable speed rotating shaft with a radius of 1.5cm is selected. According to the general bulk density of activated carbon 0.4 ~ 0.45cm 3 / g and working condition requirements, set the amount of activated carbo...
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The invention relates to an activated carbon feeding device, which is used for accurately and stably feeding activated carbon for adsorbing dioxin in steel sintering flue gas. The device comprises an air delivery chute, a large conveying belt, a small conveying belt, large variable-speed rotating shafts and small variable-speed rotating shafts, wherein a plurality of partition plates are fixed on the large conveying belt, and the large conveying belt and the partition plates are driven to rotate by power provided by the large variable-speed rotating shafts; a partition plate groove is formed between every two adjacent partition plates; a plurality of fixed valves are fixed on the small conveying belt, and the small conveying belt and the fixed valves are driven to rotate by power provided by the small variable-speed rotating shafts; the partition plates contact with the fixed valves in a rotating process; the air delivery chute extends to the outer edges of the partition plates, and is used for delivering activated carbon into the partition plate grooves. The device is convenient to operate; the feeding amount of the activated carbon can be regulated according to changes in working conditions under the control of the large and small variable-speed rotating shafts, so that resources are reasonably utilized, and the utilization rate of the activated carbon is increased.
Description
technical field [0001] The invention relates to an activated carbon feeding device, which is used for realizing accurate and stable feeding of activated carbon used for dioxin adsorption by iron and steel sintering flue gas, and belongs to the technical field of environmental protection equipment. Background technique [0002] Dioxins are toxic fluorine-containing compounds, environmental endocrine disruptors with carcinogenic, teratogenic, and mutagenic effects, and are the most toxic among known toxic compounds in the world. Dioxins mainly come from waste incineration, metal smelting, and production of fluorine-containing chemicals. Because it is very stable in the environment and other characteristics, it is very easy to cause pollution. Iron and steel smelting is an important emission source of dioxins in the atmosphere in my country. According to statistics, the emission of atmospheric dioxins in the iron and steel industry in my country is 1673.4 grams TEQ, accounting...
Claims
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Login to View More IPC IPC(8): B01D53/02B65G15/22
Inventor 朱廷钰叶猛刘文齐枫王雅利
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI