Manufacturing method of function module used for absorbing fog drops and VOC (volatile organic compounds) in airflows

A functional module and droplet technology, applied in chemical instruments and methods, separation methods, air quality improvement, etc., can solve the problems of large pressure drop, pressure drop, and large pressure drop of the gas distribution plate, and achieve the effect of improving the absorption capacity

Active Publication Date: 2013-02-06
中科新环(北京)环境工程有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Food cooking methods with Chinese characteristics use a large number of techniques such as frying, frying, and deep-frying, resulting in a large amount of mist droplets composed of oil-water mixture and VOC in the exhaust gas, which makes it difficult for ordinary range hoods using baffle method to completely eliminate Therefore, a simple and effective technical solution is needed to purify the catering waste gas treated by the range hood. In addition, since the catering industry often does not have fan assistance, the purification module must have a very low pressure drop. Therefore, the common fixed bed adsorption method cannot be used due to too large a pressure drop. Although the fluidized bed adsorption method has a low bed pressure drop, the gas distribution plate in the lower layer has a large pressure drop, and generally needs to be installed after the fluidized bed. Cyclone separator to remove escaped adsorbent particles due to crushing, which is often unacceptable for catering exhaust gas treatment occasions

Method used

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  • Manufacturing method of function module used for absorbing fog drops and VOC (volatile organic compounds) in airflows
  • Manufacturing method of function module used for absorbing fog drops and VOC (volatile organic compounds) in airflows

Examples

Experimental program
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Effect test

Embodiment 1

[0014] Take 10 circular paper honeycomb panels with a diameter of 200mm (containing 10 layers of honeycomb layers and 10 layers of separator layers respectively), the thickness of each layer of paper honeycomb panels is 100mm, and the side length of the regular hexagon of the honeycomb layer section is 4mm. Open holes in different positions of adjacent separator layers, and dip 8 layers of paper honeycomb panels in a slurry containing 30% diatomaceous earth and 0.1% polyvinyl alcohol (MW300,000), take them out and dry them, while the other 2 The paper honeycomb layer is immersed in a slurry containing 10% activated carbon powder and 0.5% gelatinized starch, taken out and dried, the paper honeycomb layer loaded with diatomaceous earth is placed in front, and the paper honeycomb layer loaded with activated carbon is placed behind , a functional module that can effectively remove mist and VOC in exhaust gas is obtained.

Embodiment 2

[0016] Take 20 square paper honeycomb panels with a size of 300mm×300mm (containing 20 layers of honeycomb layers and 20 layers of separator layers respectively), the thickness of each layer of paper honeycomb panels is 150mm, and the side length of the regular hexagon of the honeycomb layer section is 10mm , open holes at different positions of adjacent separator layers, and impregnate 10 layers of paper honeycomb panels in a slurry containing 50% expanded vermiculite powder and 5% polyethylene glycol (MW1000), take them out and dry them, while the other The 10-layer paper honeycomb is immersed in a slurry containing 1% active coke powder and 0.1% methylcellulose, taken out and dried, the paper honeycomb layer loaded with vermiculite powder is placed in front, and the paper honeycomb layer loaded with active coke After being installed, a functional module that can effectively remove mist and VOC in the exhaust gas is obtained.

Embodiment 3

[0018] Take 30 pieces of paper honeycomb panels with a diameter of 1000mm (containing 30 layers of honeycomb layers and 30 layers of separator layers respectively), the thickness of each layer of paper honeycomb panels is 200mm, and the side length of the regular hexagon of the honeycomb layer section is 200mm. Holes were opened at different positions adjacent to the separator layer, and 22 layers of paper honeycomb panels were dipped in a slurry containing 40% activated alumina powder and 2% polyvinyl alcohol (MW 25,000), taken out and dried, while the other The 8-layer paper honeycomb is impregnated in a slurry containing 20% ​​chopped activated carbon fiber and 0.1% cationic etherified starch, taken out and dried, the paper honeycomb layer loaded with activated alumina is placed in front, and the chopped activated carbon After the fibrous paper honeycomb is placed, a functional module that can effectively remove mist and VOC in the exhaust gas is obtained.

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Abstract

The invention relates to a manufacturing method of a function module used for absorbing fog drops and VOC (volatile organic compounds) in airflows and belongs to technical field of material preparation and environmental protection. The manufacturing method includes utilizing honeycomb paper as a base material, drilling holes at different positions of two adjacent partition layers, impregnating the honeycomb paper in pulp containing absorbent powder, taking the honeycomb paper out and drying to obtain the function module for absorbing fog drops and VOC in the airflows. The airflows pass in a baffling manner in the function module, the fog drops and the VOC are captured by absorbent on the inner wall of the honeycomb paper and the surface of a partition layer, so that the function module can efficiently remove the fog drops and the VOC in the airflows under the condition of lower pressure drop, and is more applicable to purification and treatment of catering waste gas.

Description

technical field [0001] The invention relates to a preparation method of a functional module for absorbing mist and VOC in airflow, and belongs to the technical fields of material preparation and environmental protection. Background technique [0002] With the rapid development of my country's economy, the haze air pollution in large and medium-sized cities, economically developed areas and areas with intensive basic industries in my country is becoming more and more serious. With my country's increasingly stringent restrictions on SOx and NOx emissions, and the continuous use of related environmental protection technologies and devices, the total amount of SOx and NOx pollutant emissions in the atmospheric environment in my country has been decreasing year by year. However, from the current test results, my country's Yangtze River Delta On the contrary, the smog pollution in the Pearl River Delta and Beijing-Tianjin-Hebei areas is becoming more and more serious, which has ser...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/02
CPCY02A50/20
Inventor 刘海弟李伟曼黄亿苹岳仁亮陈运法
Owner 中科新环(北京)环境工程有限公司
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