Incinerator for processing pulping foul gas in paper mills

Abstract

The invention relates to an incinerator for processing pulping foul gas in paper mills, belonging to machinery. The incinerator is composed of a cylinder burning system, a support structure, a fan, an air duct, a pipeline and a valve, wherein the cylinder is composed of an inner cylinder and an outer cylinder; an interlayer is formed between the inner cylinder and the outer cylinder; a flow guide plate is arranged in the interlayer and connected with the inner cylinder and the outer cylinder; the burning system is composed of a main burner and a foul gas burner; the main burner and the foul gas burner are connected to the bottom of the cylinder through flanges; the main burner is positioned at the center of the bottom of the cylinder; the spouts of the main burner are perpendicular to the foul gas burner and annularly arranged around the main burner; and the cylinder is perpendicularly fixed above an alkali recovery boiler by the support structure. The incinerator for processing foul gas has the advantages of reasonable structure, convenient use and operation, can be matched with the alkali recovery boiler, and can also be independently used for long-time service when the alkali recovery boiler stops working. The incinerator is suitable for processing pulping foul gas in paper mills by incineration, and can also be widely used for processing other similar harmful waste gases.

Description

technical field [0001] The invention relates to an incineration device for treating pulping odor in a paper mill, which belongs to the category of mechanical equipment. Background technique [0002] In the paper industry, kraft pulping is the dominant chemical pulping method at home and abroad. During the production process of kraft pulp production, pulping odors of different concentrations will be produced. Pulping odor Contains hydrogen sulfide (H2S), methyl mercaptan (CH3SH), methyl sulfide (CH3SCH3), dimethyl disulfide (CH3SSCH3) and other major pollutant gases. These gases are harmful to humans and animals. Excessive inhalation can lead to poisoning, and the smell Stinks. These gases are also combustible gases with combustion characteristics such as: ignition temperature, explosion limit, calorific value, etc. In the past, pulping odor from paper mills was directly emitted. As the scale of paper mills increases, the amount of odor emissions is also increasing. However...

AI Technical Summary

Problems solved by technology

[0007] 1 Ignition and combustion are carried out in an open environment, and it cannot be guaranteed that the pulping odor in the paper mill will not leak;

[0008] 2. Combustion is carried out under open environmental conditions, and the temperature cannot be controlled, so it is difficult to ensure that the odor is fully burned;

[0009] 3 Its natural air supply method is inconvenient to adjust and organize the air volume required for combustion, and it is difficult to ensure the burnout rate of pulping odor in paper mills;

[0010] 4 Its open structure is greatly affected by environmental factors, and it is difficult to ensure stable and safe combustion

Therefore, the above-mentioned technology is not suitable for dealing with pulping odor in paper mills

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