Liquid Level Regulator

Mandatory to feed a dewaterer. The liquid level regulator tank is installed between the manure pump and the dewaterer.
The functions of the tank are:

• To receive, from the manure pump, the liquid to be processed by the dewaterer
• To signal the dewaterer (and roller press) to start once level of manure in the tank reaches the high level switch
• To screen and prevent large and/or heavy foreign material from reaching the dewaterer
• To gravity feed the dewaterer with its 2 - 6" diameter discharges
• To regulate the processing speed of the dewaterer by adjusting the liquid level in the tank
• To signal the dewaterer (and roller press) to stop once the level of manure in tank is down to the low level switch
• To signal the manure pump to stop if the level of manure in the tank reaches the high-high level switch

To obtain maximum efficiency of the roller press, the dewaterer must supply the roller press with a constant volume of wet fibers.  However, volume of fibers in liquid manure varies with its consistency:

Thick manure has a high ratio of fibers compared to the liquid ratio. When the dewaterer processes thick manure, the volume of liquid that must gravity flow through the screen is low. Therefore, the liquid level of manure in the tank must be set low so only the lower portion of the screen is used to dewater the manure.

Very liquid manure has a low ratio of fibers compared to the liquid ratio. When the dewaterer processes thin manure, the volume of liquid that must gravity flow through the screen is high. Therefore, the liquid level of manure in the tank must be set high so more percentage of the screen is used to dewater the manure.