Super-gravity ammonia removal device and ammonia removal method

Abstract

The invention discloses a supergravity ammonia removal device, which comprises a box body, an explosion-proof motor, a liquid circulation loop and a gas circulation loop. The supergravity ammonia removal device of the present invention uses the strong centrifugal force generated by high-speed rotation to form a liquid film through the plastic net to increase the contact area, so that the relative motion speed of the gas and liquid increases, and the contact interface area between the phases is greatly increased and quickly updated, enabling mass transfer. The efficiency is 1-3 orders of magnitude higher than that of the spray tower equipment, so that the ammonia gas can be more fully dissolved in water. Water recycling reduces the energy consumption of water and improves the recycling rate of ammonia. It also has the characteristics of small device size, simple structure, short residence time, uniform microscopic mixing, high mass transfer efficiency, and low investment and operating costs. The invention also discloses an ammonia removal method of a supergravity ammonia removal device.

Description

technical field [0001] The invention relates to a supergravity ammonia removal device and a use method thereof, which is an ammonia purification treatment device and belongs to the technical field of industrial ammonia treatment equipment. Background technique [0002] Ammonia is a nitrogen-hydrogen compound. It is a colorless but poisonous gas with a strong pungent smell. It is easily soluble in water. 1 volume of water can dissolve 700 volumes of ammonia, and ammonia is easily dissolved in water. The water reacts chemically to form ammonia monohydrate. Ammonia has a boiling point of -33.5 degrees Celsius and is easy to liquefy. This characteristic is often used in industry, and ammonia is used as a refrigerant. Because ammonia contains nitrogen, it is widely used in the manufacture of soda ash, nitric acid, ammonium salts and fertilizers. [0003] The explosion limit of ammonia gas is 15.7-27.4%, and its fire hazard belongs to category B item 2. Therefore, ammonia mixed...

AI Technical Summary

Problems solved by technology

The disadvantage of this process is that a large amount of heat is released during the reaction of ammonia gas and water, resulting in a sharp rise in temperature, which prevents ammonia gas from dissolving in water and makes the liquid phase water tend to be saturated. Therefore, it needs to consume a large amount of water

However, the absorption efficiency of ammonia gas mainly depends on the acid content in the acidic wastewater. If the acid content is insufficient, the absorption process will be transformed into the absorption process of ammonia gas by water, wh

Images