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Deep purifying method and device of air pollutants generated during spraying of oil paint

A technology of air pollutants and deep purification, which is applied in the field of environmental engineering, can solve problems such as the inoperability of sticky equipment, and achieve the effects of avoiding equipment corrosion, no secondary pollution, and avoiding secondary pollution

Inactive Publication Date: 2019-01-25
CHANGSHA HUIJU ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dry removal method generally has the problem of sticking to the equipment and causing it to fail to operate.

Method used

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  • Deep purifying method and device of air pollutants generated during spraying of oil paint
  • Deep purifying method and device of air pollutants generated during spraying of oil paint
  • Deep purifying method and device of air pollutants generated during spraying of oil paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A mixture of stainless steel metal balls with a diameter of 20 mm and a stainless steel metal ball with a diameter of 30 mm with a mass ratio of 1:1 was put into the inner cavity of the paint mist filter, and the whole set of devices was connected.

[0039] 1000m generated by the paint shop 3 / h The spraying exhaust gas is collected through the pipeline and sent to the cavity of the paint mist filter filled with stainless steel metal balls. The spraying exhaust gas passes through the filter medium from bottom to top, and the solid paint mist substances in the spraying exhaust gas are adhered to the stainless steel metal balls. On the surface, the gaseous pollutants in the spray paint exhaust gas pass through the stainless steel metal ball and escape from the upper part of the paint mist filter; at the same time, start the stirring device in the paint mist filter to stir the stainless steel metal ball. The paint mist attached to the surface of the stainless steel metal b...

Embodiment 2

[0047] A mixture of plastic balls with a diameter of 20 mm and a plastic ball with a diameter of 30 mm with a mass ratio of 1:1 was put into the inner cavity of the paint mist filter, and the whole set of devices was connected.

[0048] 1000m of spraying exhaust gas produced by the spraying workshop 3 / h is collected through the pipeline and sent to the cavity of the paint mist filter filled with plastic balls. The spraying exhaust gas passes through the filter medium from bottom to top, and the solid paint mist substances in the spraying exhaust gas are adhered to the surface of the plastic balls, and the spraying exhaust gas The gaseous pollutants in the paint escape from the upper part of the paint mist filter after passing through the plastic balls; at the same time, start the stirring device in the paint mist filter to stir the plastic balls, the speed of the stirring device is 5rpm, and the paint waste gas is processed by the paint mist filter After that, it is sent to t...

Embodiment 3

[0055] A mixture of ceramic balls with a diameter of 20 mm and a ceramic ball with a diameter of 30 mm with a mass ratio of 1:1 was put into the inner cavity of the paint mist filter, and the whole set of devices was connected.

[0056] 1000m of spraying exhaust gas produced by the spraying workshop 3 / h is collected through the pipeline and sent to the cavity of the paint mist filter filled with ceramic balls. The spraying exhaust gas passes through the filter medium from bottom to top, and the solid paint mist substances in the spraying exhaust gas are adhered to the surface of the ceramic balls, and the spraying exhaust gas The gaseous pollutants in the paint escape from the upper part of the paint mist filter after passing through the ceramic ball; at the same time, start the stirring device in the paint mist filter to stir the ceramic balls, and the speed of the stirring device is 5rpm; the paint spraying waste gas is processed by the paint mist filter After that, it is s...

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Abstract

The invention provides a deep purifying method of air pollutants generated during spraying of oil paint. According to the method, firstly, waste gas generated in a coating workshop is collected through a pipeline, enters a cavity of a paint mist filter filled with a filtering medium and passes through the filtering medium from bottom to top, solid paint mist substances in the waste gas adhere to the surface of the filtering medium, and gaseous pollutants in the waste gas pass through the filtering medium and then flow out from the upper portion of the paint mist filter; meanwhile, a blender inthe paint mist filter is turned on to blend the filtering medium, and the paint mist adhering to the surface of the filtering medium is dried under the constant blending friction effect of the filtering medium, loses viscidity, is separated from the filtering medium and then falls to the bottom of the paint mist filter; after the waste gas is disposed by the paint mist filter, purification and separation of the paint mist are achieved, and the gaseous pollutants in the waste gas are fed into an activated carbon adsorption device for adsorption and purification and discharged into atmosphere through a chimney at last. Disposal devices are simple, the disposal flow is short, and no secondary pollution is caused.

Description

Technical field: [0001] The invention relates to the field of environmental engineering, in particular to a method and device for deep purification of air pollutants by paint spraying. technical background: [0002] Haze weather is caused by a variety of reasons, and VOCs have been proven to be one of the important causes. According to the statistics of relevant departments of the Ministry of Environmental Protection, in the past five years, the investment demand for VOCs detection instrument management projects in China's environmental protection industry is about 61.5 billion yuan, of which the investment demand for petrochemical industries such as refining, olefin production and PTA is 40 billion yuan. Petroleum refining and petrochemical, coal chemical, chemical storage and transportation are the key industries for VOCs emissions. Since the winter of 2017, 11 provinces and cities in northern China, including Beijing-Tianjin-Hebei, Shanxi, Shaanxi, and Henan, have encoun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/02B01D46/32B01D46/00
CPCB01D46/32B01D53/02B01D2258/0258B01D2257/708B01D46/74
Inventor 不公告发明人
Owner CHANGSHA HUIJU ENVIRONMENTAL TECH CO LTD
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