Case Study - Paddle Mixer Overhaul

Location

Lincolnshire

Plant Type

Biogas Plant

Scale

2,000kWe

Date

Spring 2020

Reason for activity:

Paddle mixer collapsed, and failed gearbox.

How we helped:

Birch Solutions was able to rapidly develop a response plan for this important client and deploy it on-site within 5 days of the issue materialising. In conjunction with the paddle mixer replacement, the tank was also degritted with a Libra Agrotwist to optimise the downtime incurred by the forced repair on the 3,500m3 digester.

Elements of the work included:

Development of project plan and associated project and safety documentation
Safe de-commissioning for the digester prior to starting work
Peel back of the roof
Deployment of the mobile long reach hydraulic mixer and pump system
Contract lift of mixer
Replacement of paddles, internal bearing, gearbox and shaft
Reinstatement of the bio-dome
Start up and re-commissioning support

Continued support provided:

Plant optimisation
Biological support
Service and maintenance