Hi,
just wanted to share....first sorry if some phrases or words doesn't sound right, is difficult to explain technical things in english!
after a year working on it, finally complete my Electric Biab setup, 100liters pot for 14g/52liters of finished product, dual 2kw elements with auto/manual control panel, electric stirrer and hoist, all on a mobile rack.
A couple of years ago i made this biab setup with low costs elements with simple manual regulators, but it was a pain to work with, always manually stirring, difficult to hold steady temperature and also had problem with schorched wort.
I choose the automatic stirrer path because i want that every brew is repeatable, distribute the heat evenly, mix the wort and keep the wort/water around elements in movement.
Stirrer is based on automotive wiper motor, with a couple of blades attached. Bag is hold to walls of the pot with a selfmade cage, everything inside and outside the Pot is stainless steel (304 or 316) or food grade silicone.
In future i could add a pump or use it in parallel with the stirrer, right now after few tests everything is working right.
Also made a control panel to automate everything with a raspberry Pi, wireless controlled. The panel has dual mode
- automatic: everything controlled via StrangeBrew Elsinore software (pid with ssr, digital thermo probe,etc.)
- Manual: old fashion way, manual on/off switches for Elements/stirrer, and regulation via SCR circuits for the elements.
here the detailed Control Panel build https://www.homebrewtalk.com/showthread.php?t=576938
Starting from the bottom...mounted a kitchen hood to remove steam (found a nice offer online) in the garage/brewery corner.
modified the stand built in 2013, now it has 4 wheels (lockable), add some soldered plate to reinforce the structure, after that used a stainless steel sheet (bended on the corners) to cover the top part.
I Made a "separation layer" so the bag doesn't touch the elements, used a perforated stainless steel sheet (2mm thick), cutted and bended on the sides and supported by large bolts with smooth body, everything is 304 SS.
Bought a SS bar (15mm x 15mm), made the hole and threaded for the wiper motor, rounded the upper side with a flex.
Working on the lid, holes for the stirrer shaft and supporting plate, flex cut for the charging/inspection door, installing it.
Wiper support plate. Blades made with 3 or 5mm sheet (don't remember) flex cutted then bended with a long bar, to give a direction for mixing the grain bed, then sanded and smooothed
just wanted to share....first sorry if some phrases or words doesn't sound right, is difficult to explain technical things in english!
after a year working on it, finally complete my Electric Biab setup, 100liters pot for 14g/52liters of finished product, dual 2kw elements with auto/manual control panel, electric stirrer and hoist, all on a mobile rack.
A couple of years ago i made this biab setup with low costs elements with simple manual regulators, but it was a pain to work with, always manually stirring, difficult to hold steady temperature and also had problem with schorched wort.
I choose the automatic stirrer path because i want that every brew is repeatable, distribute the heat evenly, mix the wort and keep the wort/water around elements in movement.
Stirrer is based on automotive wiper motor, with a couple of blades attached. Bag is hold to walls of the pot with a selfmade cage, everything inside and outside the Pot is stainless steel (304 or 316) or food grade silicone.
In future i could add a pump or use it in parallel with the stirrer, right now after few tests everything is working right.
Also made a control panel to automate everything with a raspberry Pi, wireless controlled. The panel has dual mode
- automatic: everything controlled via StrangeBrew Elsinore software (pid with ssr, digital thermo probe,etc.)
- Manual: old fashion way, manual on/off switches for Elements/stirrer, and regulation via SCR circuits for the elements.
here the detailed Control Panel build https://www.homebrewtalk.com/showthread.php?t=576938
Starting from the bottom...mounted a kitchen hood to remove steam (found a nice offer online) in the garage/brewery corner.
modified the stand built in 2013, now it has 4 wheels (lockable), add some soldered plate to reinforce the structure, after that used a stainless steel sheet (bended on the corners) to cover the top part.
I Made a "separation layer" so the bag doesn't touch the elements, used a perforated stainless steel sheet (2mm thick), cutted and bended on the sides and supported by large bolts with smooth body, everything is 304 SS.
Bought a SS bar (15mm x 15mm), made the hole and threaded for the wiper motor, rounded the upper side with a flex.
Working on the lid, holes for the stirrer shaft and supporting plate, flex cut for the charging/inspection door, installing it.
Wiper support plate. Blades made with 3 or 5mm sheet (don't remember) flex cutted then bended with a long bar, to give a direction for mixing the grain bed, then sanded and smooothed