Adjustable high-efficient waste acid combined burner

Abstract

The invention relates to an adjustable high-efficient waste acid combined burner which comprises a waste acid spray gun and a burner around the waste acid spray gun, wherein the waste acid spray gun comprises a waste acid inlet, a waste acid pipeline, an atomized gas inlet, an atomized gas pipeline, a mixer, a mixing cavity and a spray head; the atomized gas pipeline is arranged outside the wasteacid pipeline in a surrounding mode; one end of the atomized gas pipeline is connected with the atomized gas inlet, the other end of the atomized gas pipeline is open at the mixer, one end of the waste acid pipeline is connected with the waste acid inlet, the other end of the waste acid piple is open at the mixer, and the mixer is arranged at the back end part of the mixing cavity and open at themixing cavity; the spray head is arranged at the front end part of the mixing cavity; and the burner comprises a combustion-supporting air cavity, a fuel gas pipeline, an adjustable needle cone, an adjustable needle cone disk and a pre-combustion chamber. By utilizing the adjustable high-efficient waste acid combined burner, the technical problems in the background art is solved, and work reliably when the flow rate of waste acid changes between 30% and 100%, and has the characteristics of high combustion efficiency, controllable cracking temperature, good waste acid atomization, fast decomposition, compact layout and the like.

Description

technical field [0001] The invention relates to a combined burner for waste acid, which can be applied to waste acid cracking furnaces or other waste liquid incinerators to generate high-temperature cracking gas and provide high-temperature cracking gas for incineration and cracking to produce industrial sulfuric acid or others. Background technique [0002] With the high development of industrialization, the waste gas, waste liquid and waste residue discharged from various production systems have increased, and the resulting public hazards have become increasingly serious. In order to avoid environmental pollution and ensure people's normal life and safety, it is necessary to purify the discharged waste. Different treatment methods can be used for waste liquid treatment, generally including mechanical method, adsorption method, chemical method, biochemical method and pyrolysis method. Various methods have a certain scope of application and advantages and disadvantages, and...

AI Technical Summary

Problems solved by technology

[0010] In general waste acid pyrolysis furnaces, the burner and waste liquid spray gun are arranged separately, the structure is not compact, and the occupied area is large, and when the waste liquid flow rate changes, the burner cannot be adjusted adaptively, or the combustion stability of the burner can be adjusted during the process. Poor, affecting the cracking temperature of waste acid, thus affecting the whole process of cracking waste acid

At the same time, the waste acid will be sprayed to the inner wall of the furnace to corrode the furnace, which will affect the life of the cracking furnace.

There is also a combined waste acid burner, but the adjustment range is limited, and it cannot be adjusted in a large range to ensure efficient and stable operation of the cracking furnace

[0011] To sum up, pyrolysis of waste acid is the core part of the sulfuric acid alkylation process, and the combined burner of waste acid is the core device of the cracking furnace of waste acid. When the flow rate of waste acid changes in a wide range, the existing combined combustion The device cannot meet the adaptive adjustment process and cannot provide the appropriate temperature required for waste acid cracking

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