Slurry Management Upgrade for Scottish Pig Farm

Problem

A pig farm in Scotland came to our agricultural and environmental experts due to issues in their large concrete slurry storage tanks. Sediment settling at the bottom of the tanks and crust forming on the slurry’s surface was making it increasingly difficult to pump and spread across their fields.

The farm’s only method of mixing was via a tractor-driven long-shaft mixer fed through a small access port at the perimeter of the tank.

Solution

The T-T Agricultural and Environmental team worked with the farm to specify and supply a complete slurry management system upgrade, including slurry mixers, chopper pumps, a separator, level control equipment and a control panel for complete automation.

Two TBM submersible mixers from Cri-Man were chosen for the job, constructed in cast iron and stainless steel for increased longevity when installed in corrosive mediums such as slurry. These agitators were ideal for effective homogenisation in the farm’s slurry tanks, with a 5.5kW motor, maximum submergence depth of 20m and solids content handling of up to 12% . We supplied the mixers with all of the necessary fixings and mounting equipment for permanent installation into the concrete tanks.

Along with the feeder pump, separator and discharge pump, the supplied ultrasonic level sensor and control panel allowed for the system to run automatically.

Slurry Management System

1. When the level sensor detects that slurry levels in the tank have reached a pre-determined height, the control panel starts the mixers to run for a set amount of time – homogenising the slurry by breaking up crusts and large solids that could cause blockages when pumped.
2. After this, the mixers stop and the feed pump transfers slurry into the separator, which separates the solid and liquid material and sends liquids to another storage tank.
3. Once the pre-set low level is achieved in the slurry storage tank the pump and separator stop.
4. A high-level float switch within the liquid storage tank will shut down the entire system if the liquid level gets too high, preventing a leak that could cause significant environmental damage.

The farm was happy to report that they were no longer experiencing settlement issues and that the new slurry management system had increased site efficiency and slurry utilisation.

Browse our range of agricultural mixers, umbilical pumps and separators online, or speak to a member of the team for a complete slurry management system upgrade by emailing, agrienviro@ttpumps.com, calling +44 (0) 1630 647200 or completing our online enquiry form.