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Preparation method of a high-efficiency catering oil fume treatment module

A technology for oil fume treatment and catering, which is applied in the direction of oil fume removal, separation methods, chemical instruments and methods, etc. It can solve the problem that it is not suitable to install the front end of the fan blade of the range hood and the middle of the flue gas duct, and the porous cordierite ceramic has a low oil absorption value. , limited oil fume absorption capacity, etc., to achieve the effect of adjustable size, good removal effect, and improved absorption capacity

Active Publication Date: 2016-06-29
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The research team used the combination of twisted wire brushes and porous ceramics to obtain a dust removal module with good dust removal ability and low pressure drop (201210418554.4). However, because the module is based on inorganic ceramics such as porous cordierite ceramics, its weight is relatively heavy Large, not suitable for installation in the front end of the range hood fan blade and the flue gas duct. In addition, the oil absorption value of porous cordierite ceramics is very low, and the absorption capacity for oil fume is very limited

Method used

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Examples

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Embodiment 1

[0014] Take a polyurethane sponge with a size of 30cm×20cm×10cm, and make round holes in the direction of its thickness of 10cm. The diameter of the hole is 10mm, and the distance between the centers of the holes is 15mm. The centers of every three adjacent holes are arranged in an equilateral triangle. The number of holes is 293. Take 293 twisted wire brushes with an outer diameter of 11mm. The bristles are made of polyethylene wire and the length of the bristles is 10cm. Insert them into the pores of the polyurethane sponge and insert a brush in each hole to obtain efficient The gas purification module that captures catering waste gas oil mist droplets has a pressure drop of less than 60Pa at an air velocity of 5m / s, and its interception efficiency for droplets with a particle size of 2μm exceeds 95%.

Embodiment 2

[0016] Take a piece of polyvinyl alcohol sponge with a size of 20cm×20cm×1cm, and make a round hole in the direction of its thickness of 1cm. The diameter of the hole is 20mm, and the distance between the centers of the holes is 24mm. The centers of every three adjacent holes follow the regular triangle method. Arrangement, the number of holes is 68, take 68 twisted wire brushes, the outer diameter is 32mm, the bristle material is polypropylene wire, the length of the bristles is 1cm, insert it into the channel of the polyvinyl alcohol sponge, and insert a brush in each hole , Obtain a gas purification module that can efficiently capture oil mist droplets from catering waste gas. At an air velocity of 4m / s, the pressure drop is less than 28Pa, and the interception efficiency for droplets with a particle size of 2μm exceeds 40%.

Embodiment 3

[0018] Take a cylindrical melamine sponge with a diameter of 40cm and a height of 20cm. Make a round hole in the height direction. The diameter of the hole is 15mm. The distance between the centers of the holes is 20mm. The centers of every three adjacent holes are arranged in an equilateral triangle. The number of holes is 336. Take a twisted wire brush with an outer diameter of 20mm. The bristle material is bristle and the length of the bristle is 20cm. Insert it into the channel of the melamine sponge, and insert a brush in each hole to obtain a high-efficiency capture of catering waste gas, oil and smoke. The droplet gas purification module has a pressure drop of less than 120Pa at an air velocity of 10m / s, and its interception efficiency for droplets with a particle size of 2μm exceeds 98%.

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Abstract

The invention discloses a method for preparing an efficient catering cooking fume processing module, and belongs to the technical field of defogging and environmental protection. The method includes the following steps: using a bulk of sponge as a substrate, forming a through hole passage in the substrate, filling the hole passage with twisted wire type bristle brushes, so as to obtain an efficient catering cooking fume processing module which is small in air resistance, and high in flux and oil contamination adsorption capacity; when the catering waste gas flows in the module, the gas flow passes through a complex runner formed jointly by the bristle brushes and the sponge hole passage, and the oil drops in the waste gas can be captured by the brush bristle fibers; the captured oil drops can be further sucked into the interior of the sponge due to the capillarity of the sponge, so that the material has a high oil contamination accommodating capacity; therefore, the catering cooking fume processing module is quite suitable for removing oil drops in the catering waste gas.

Description

technical field [0001] The invention relates to a preparation method of a high-efficiency catering fume treatment module, which belongs to the technical field of demisting 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. As my country's restrictions on SOx and NOx emissions become increasingly stringent, and related environmental protection technologies and devices continue to be put into use, the total emissions of SOx and NOx pollutants in my country's atmospheric environment have decreased year by year. However, from the current monitoring results, my country's Yangtze River Delta The haze pollution in the Pearl River Delta and Beijing-Tianjin-Hebei areas has not been significantly reduced, and has seriously threatened the health of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D46/30F24C15/20
Inventor 刘海弟李伟曼李文辉岳仁亮陈运法
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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