TMA draft tube mixers have the task to mix the sludge in digesters of sewage treatment plants in order to achieve a perfect yield of digester gas. During this process, the content of the digester tank is homogenised. It avoids large differences in temperature and composition. Träxler technology is suitable for all types of digester tanks. It is robust and it has been tried and proved in practical applications for many years. Draft tube mixer TMA is ATEX-approved.
Träxler supports planners and engineering offices if they plan new systems.
• no sediment formation
• no scum formation
• up to twice the yield of digester gas
• less residual sludge, faster drying, lower disposal costs
• a higher sludge throughput rate, less throughput time
• short amortisation time for draft tube mixers
For mixing, sludge in the digester tank is fed through the draft tube pipe, which is nearly as high as the tank. If the rate of circulation is high, the draft tube mixer can recirculate the entire content of the tank within a very short time. This forms a homogeneous sludge mixture for a swift digestion process with the best yield of digester gas. By comparison, this forced circulations requires a little energy input. Therefore, this process is seen as highly economic if drive effort and digester gas yield are compared.
A system with draft tube mixer from Träxler consists of three components:
1. Mixer aggregate properly dimensioned
2. Mixer seat in form of three different installation solutions
3. Draft tube pipe