How to select the circulating pump for washing tower?

　　Waste gas treatment on the washing tower circulating pump is required to acid acid and alkali resistant materials, because the waste gas in a variety of chemical particles through the spray treatment, it will make the medium in the tank into a corrosive medium containing corrosive media, so it will cause corrosion of the chemical pump pump body, so wash the tower of the chemical circulating pump is crucial to the selection of the pump, then let the next let Xiaobian take you together to understand how to wash the tower circulating pump should be based on the media selection What?

　　First of all, you need to understand the characteristics of the circulating medium, including corrosivity, temperature, viscosity, fluidity, density, containing particles and so on, to understand these parameters, in order to ensure the accuracy of the selection, in order to ensure that the medium in the transport cycle pump pumps are not corroded.

　　1) Alkaline solution

　　Alkaline absorbing solution often contains 1% to 10% of sodium hydroxide solution, to eliminate hydrogen sulfide exhaust gas effect is significant, others, such as methyl mercaptan, methyl sulfide, methyl disulfide, low-grade fatty acids and other substances that often cause odor in the wastewater treatment plant, the treatment effect is also very significant.

　　2) Acid solution

　　Acid washing is mainly used to eliminate the odor caused by alkaline gases such as ammonia, trimethylamine, etc. Sulfuric acid (0.5%-5% solution) is generally used as the washing solution.

　　3) Sodium hypochlorite solution

　　Sodium hypochlorite is generally used together with acid and alkaline absorbing solution, for other methods are difficult to eliminate methyl sulfide, the use of sodium hypochlorite absorbing solution has a very good control effect.

　　Exhaust gas scrubber tower circulating water pump selection and use:

　　1: Nitric acid scrubber tower plastic vertical pump, most of the general metal in nitric acid is rapidly corroded and destroyed, engineering plastics corrosion resistance is much greater than metal materials, all concentrations of nitric acid at room temperature have good corrosion resistance.

　　2: Sulfuric acid washing tower plastic vertical pump Sulfuric acid as one of the strong corrosive media, sulfuric acid is a very wide range of uses of important industrial raw materials. Different concentrations and temperatures of sulfuric acid on the corrosion of materials, fluorine plastic has a better resistance to sulfuric acid performance, the use of plastic pumps is a more economical choice.

　　3: Hydrochloric acid washing tower plastic vertical pump, the vast majority of non-metallic materials have good corrosion resistance to hydrochloric acid, so polypropylene, fluorine plastic, etc. is the best choice for conveying hydrochloric acid.

　　According to the different ways of installation, it can be divided into acid and alkali resistant self-priming pumps and idling vertical pumps, especially idling vertical pumps, with excellent performance, it has become the standard circulating water pump of the scrubber tower in waste gas industry, if you have any requirements about the selection of circulating pumps of the waste gas scrubber tower, please feel free to consult the online customer service.