What are the advantages of waste acid cracking furnace?
2020-12-15
waste acid cracking furnaceUsed for spent acid in a cracked-gasoline alkylation unit, spent acid is atomized into a furnace by a lance. Under the action of high temperature in the furnace, the waste acid is cracked and evaporated, and the organic matter in the waste acid is removed. After combustion, it will become a gas containing sulfur dioxide, which is then used to produce sulfuric acid or liquid sulfur dioxide. The waste acid cracking furnace is composed of a steel shell lined with heat-resistant materials. In order to enhance the cracking and combustion effects, multiple retaining walls are installed in the furnace.
waste acid cracking furnaceA furnace body is included, wherein a combustion part, a waste acid decomposition part and a sulfur trioxide conversion part are arranged in order from left to right, and the sulfur trioxide conversion part is alternately provided with an upper opening holding wall and a lower opening holding wall.
The right end of the waste acid cracking furnace body is equipped with a furnace gas outlet, and the left end of the furnace body is equipped with an integrated combustion lance. The integrated combustion spray gun includes an air inlet pipe that is open at the right end and closed at the left end. The right end of the intake pipe extends into the furnace body, while the left end is equipped with an air inlet. At the air inlet, a compressed air inlet pipe with an open right end and a closed left end is inserted at the center. The left end of the compressed air inlet pipe extends out of the air inlet pipe and is connected to the seal.
waste acid cracking furnaceThe left end of the compressed air input pipe is provided with a compressed air inlet, which is compressible. The intake pipe is equipped with a waste acid input pipe with openings at both ends. The left end of the waste acid input pipe extends outward from the compressed air input pipe and is connected to the compressed air input pipe in a sealed manner. There is a compressed air nozzle connected to the right end of the compressed air input pipe, the right end of the waste acid input pipe is connected to the waste acid nozzle, and the compressed air nozzle is arranged outside and between the waste acid nozzle on the coaxial line of the outlet end.
waste acid cracking furnaceThe effect:
1. It can meet the full cracking of waste sulfuric acid. Considering the corrosiveness of acidic furnace gas, the furnace is lined with acid-resistant refractory bricks to extend the service life.
2. Gas, air and waste acid are sprayed into the furnace through an integrated combustion spray gun, which is easy to install, the structure of the waste acid cracking furnace is simple, and the waste acid has a good atomization effect under the action of compressed air.
3. The sulfur trioxide conversion section is equipped with a fuel gas input pipe and an air input pipe, which are used to maintain the temperature and concentration of the sulfur trioxide conversion section to increase the conversion of sulfur trioxide.
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