Acid mixing system

A system for mixing a liquid and a powder into a solution batch comprising:

• a hopper into which said powder is deposited having a powder outlet therein and a powder control valve in fluid communication with said powder outlet;
• a mix tank having a liquid supply inlet in fluid communication with a liquid inlet valve, a recirculation inlet in fluid communication with said liquid inlet valve, and a solution outlet;
• a mix pump in fluid communication with said solution outlet, said powder outlet, and said recirculation inlet;
• a controller having a data memory and a plurality of inputs and outputs for supplying and receiving signals, and an operator interface operatively coupled to said controller for receiving user commands;
• and
• a pressure sensor disposed in fluid communication with said mix tank for monitoring the pressure of the solution in said mix tank, said pressure sensor having an output operatively coupled to an input of said controller;
• a set of instructions provided to said controller to perform the steps of:
• verifying a predetermined liquid level for said solution batch;
• filling said mix tank with said predetermined liquid level and measuring temperature the pressure of the liquid therein;
• mixing said powder and said liquid into said solution batch;
• calculating the actual specific gravity of said solution batch;
• and
• verifying an acceptable actual specific gravity of said solution batch by comparing said actual specific gravity with an acceptable specific gravity for a given solution batch.