Industrialized continuous potassium dihydrogen phosphate production method

The invention discloses an industrialized continuous potassium dihydrogen phosphate production method, which comprises the following steps of: 1) adding purified water into a potassium dissolving kettle, slowly injecting phosphoric acid with stirring, adding potassium chloride into the aqueous solution of the phosphoric acid in a ratio, heating the potassium dissolving kettle, continuously stirring the solution, and discharging the solution to a chlorine removing kettle from the outlet at the lower end; 2) continuously stirring the solution in the chlorine removing kettle spirally, discharging hydrogen chloride and water vapor generated in the chlorine removing kettle out of the chlorine removing kettle through vacuum, absorbing the hydrogen chloride gas to obtain hydrochloric acid, purifying tail gas, and emptying; and 3) discharging the chlorine removed potassium dihydrogen phosphate solution to a crystallizer from the outlet of the chlorine removing kettle, cooling the solution in a cooling system to obtai