A dust-containing asphalt flue gas treatment device

Abstract

The invention discloses a dust-containing asphalt smoke processing device including a plasma unit, the dust-containing asphalt smoke processing device is characterized by also comprising a throttling powder blocking device, a smoke pipe spray device, an alkaline water spray tower and a liquid gas filtering device which are in turn arranged at a batching unit exhaust outlet, the output end of the liquid gas filtering device is connected to the plasma unit, the bottom of the alkaline water spray tower is provided with a sewage pipe for connecting a sedimentation tank in a shape of the character of ''tian'' , the sedimentation tank in the shape of the character of ''tian'' is also provided with a floating oil gaining device, and the output end of the sedimentation tank in the shape of the character of ''tian'' is provided with a backflow pipe for connecting the alkaline water spray tower. The floating oil gaining and sedimentation treatment of dust and floating oil-containing sewage produced by the alkaline water spray tower can be performed by the sedimentation tank in the shape of the character of ''tian'', the treated clear water flows back to a smoke pipe and the alkaline water spray tower for spraying. The dust-containing asphalt smoke processing device has the advantages that: the dust-containing asphalt smoke processing device is energy-saving and environmentally-friendly, because the wastewater produced after spray is processed, and then recycled, and the floating oil produced by spray can be effectively used.

Description

technical field [0001] The invention relates to a flue gas treatment device, in particular to a dust-containing bitumen flue gas treatment device. Background technique [0002] The low-volume, high-temperature, high-concentration dust-containing flue gas discharged from the asphalt workshop is currently the main method to solve asphalt flue gas purification by mechanical collision, activated carbon filter and electrostatic adsorption. Although they can reduce asphalt fume to a certain extent, but Incomplete, environmental pollution still has the following problems: [0003] 1. For the mechanical collision type, the wind resistance is large, the purification efficiency is low, and it cannot remove tiny particles, odors and harmful gases; [0004] 2. For the activated carbon filter type, it is very easy to be saturated, the replacement cycle is short, and the loss rate and cost are increased; [0005] 3. As far as the electrostatic adsorption method is concerned, smoke parti...

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Problems solved by technology

[0003] 1. For the mechanical collision type, the wind resistance is large, the purification efficiency is low, and it cannot remove tiny particles, odors and harmful gases;

[0004] 2. For the activated carbon filter type, it is very easy to be saturated, the replacement cycle is short, and the loss rate and cost are increased;

[0005] 3. For the electrostatic adsorption method, the smoke particles are purely adsorbed and efficiently captured by charging the smoke particles. However, in practical applications, there are disadvantages such as difficult to clean the plates, cannot effectively remove odors, and cannot degrade smoke gas molecules.

In this invention, the asphalt flue gas uses a scrubber to reduce the flue gas temperature and dilute the flue gas concentration, but there is a hazard of secondary water pollution

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