A
waterfall curtain type wall cleaning feeding device is characterized in that a spraying
system, a stirring
system and a metering
control system are arranged in a tank body, the spraying
system is arranged at the top end in the tank body, the spraying system sprays the interior of the tank body through a plurality of spraying heads which are annularly and uniformly arranged, and the spraying system and the stirring system are in circuit connection with the metering
control system. The discharging system has the beneficial effects that the problems of fisheyes,
caking and the like caused by insufficient
dissolution of materials due to the fact that chemicals are attached to the wall surface of the inner wall of a tank in a discharging system for profile control and flooding of an offshore oilfield at present are solved. According to the device, a plurality of spray headers are annularly and uniformly arranged at the top end in the dissolving tank body, and a
solvent is sprayed through water nozzles of the spray headers to wash an agent attached to the tank wall, so that a
waterfall curtain type wall cleaning effect is achieved, and the problem that
solid powder adheres to the wall and is agglomerated is solved. The invention further provides a method for calculating the spraying coverage rate of the feeding device, and discloses the optimal water
nozzle number, the optimal water
nozzle structure, the optimal spraying angle, the optimal displacement and the optimal arrangement mode of the water nozzles of the spraying head, so that the spraying coverage rate is maximized.