The turk burner head has been moved away a few hundred millimeters. Some loose bricks were stacked on the firebox floor to create a torturous flame path. The object is to soften the ferocity of the flame so making the retort temperature more stable. A test run firing without the retort vessel in place looked great. See pic.
As I write the retort is in position but there is much work to do. The firebox upper needs fabricating. The reflux needs packing/trays. The new retort weighing mechanism needs testing. The injector pump drive motor requires bearings. The induced daft fan needs a cover. Revisions to the preheater plumbing. Instrumentation cabling/ adapting.
Test firing the 'labyrinth' designed to soften the harshness of flame
Firebox brick wedge structure
Turk burner head in new position slightly further away from retort.