Stainless steel oxidation barrel

Abstract

The invention discloses a stainless steel oxidation barrel, which comprises a cylindrical barrel body and a conical barrel bottom, wherein a feed hole is formed in the upper end part of the barrel body; a screen plate is arranged at the lower part in the barrel body; a steam inlet is arranged in the conical surface of the barrel bottom; a bottom hole is formed in the middle of the barrel bottom; a lower screen plate is arranged on the bottom hole; the bottom hole is connected with a discharge pipe; a discharge hole is formed in the side wall of the discharge pipe; an air inlet is arranged in a pipe opening of the discharge pipe; uniformly distributed gas diversion trenches are arranged in the inner wall surface of the conical barrel bottom; a gas distributor is arranged in the middle of the screen plate; the discharge pipe is a conical pipe which is connected to the middle bottom hole in the conical barrel bottom through a flange; the air inlet of the conical pipe is also connected with an air inlet pipe through a flange; and the steam inlet in the conical pipe is connected with a steam pipe through the flange. The stainless steel oxidation barrel has the characteristics of simple and reasonable structure, convenient installation and use, good material mixing effect and high gas stirring strength, the work efficiency can be improved, and the quality of a product is improved.

Description

technical field [0001] The invention relates to a stainless steel oxidation barrel used in the production of iron oxide pigments, and belongs to the technical field of iron oxide pigment production equipment. Background technique [0002] Iron oxide pigments are produced with ferrous sulfate, iron sheet, liquid alkali, etc. as the main raw materials, and are produced by the "wet sulfate" oxidation method. The entire oxidation process is a three-phase reaction of gas, liquid, and solid. At present, the oxidation barrels used in the iron oxide yellow pigment industry are all miniaturized cylindrical flat-bottomed cement oxidation barrels, which have the following defects during use: [0003] One is that the number of oxidation barrels used in the iron oxide yellow pigment industry is large and the area is relatively large; since the oxidation barrels need to be cleaned after being used for a period of time, the large number of small oxidation barrels leads to the utilization r...

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Problems solved by technology

[0003] One is that the number of oxidation barrels used in the iron oxide yellow pigment industry is large and the area is relatively large; since the oxidation barrels need to be cleaned after being used for a period of time, the large number of small oxidation barrels leads to the utilization rate of each oxidation barrel reduce;

[0004] The second is that most of the oxidation barrels used are cylindrical flat-bottomed oxidation barrels, resulting in unclean discharge of materials during discharge, which is likely to cause aggregates and reduce product recovery; moreover, if the remaining materials are not cleaned up, the quality of the product will be affected when they are used again;

[0005] The third is that the air distributor of the flat-bottomed oxidation tank is arranged horizontally, and the air outlet of the main air pipe is easily blocked, which affects the intensity of air stirring, making the material mixing effect poor and the reaction uneven

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