Ss Brewing Technologies Giveaway!

Home Brew Forums > Home Brewing Beer > DIY Projects > Micro malt house DIY for home malting automation
Reply
 
LinkBack Thread Tools
Old 01-28-2014, 09:51 PM   #1
mysobry
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2011
Location: Ivrea, Italy
Posts: 81
Liked 16 Times on 8 Posts

Default Micro malt house DIY for home malting automation

Hi
I’m an Italian homebrewer and after experimenting brewing and DIY and automation of my equipments in different direction I have started a new project that I would like to share

The idea is not new…producing a batch of beer from A to Z from the ground to the glass. I have alredy an hop garden and late autumn this year I have planted a small ground with 2 row barley that now is growing.

What I would like to share in order to get your comment and support is my idea of micro malt house: a small all in one drum malting system that could produce 5-6 kg of base malt.

I would like to perform steeping, germination and kilning in one single box with a good level of automation (via arduino microcontroller that I'’ using successfully for brewing and fermentation)

Here is the cad design of the structure

One square box with a rotating drum inside and a removable cover, a fan heater from one side and 2 fans on the top in order to create a heating flow. Two solenoid valve for water inlet and outlet and a gear motor for drum rotation.
The drum should be removable in order to load easily and clean the box

I’m a little bit warried about the max temperature I can achieve with this single box during kilning phase since all the component are not insulated like in a oven but I think that for base malt should be enough




The drum has been refurbished from a top loading washing machine







here is the fan with the 2Kw heating element





and the two way 12V solenoid valve and the level switch





about the motor I would like to use a stepper motor that I easier to control in term of rotation and steps but I don’t know if the torque is enough



I have provided the design and the specification to a local company specialized in stainless steel precision lase cut and that is the result for the mechanical part and structure









the drum can be completely and easily removed



the motor flange can be regulated in order to stretch the belt




the hot air inlet an outlet






water port to be connected to the solenoid valve




Teflon shaft support



shaft adapter



air fin



now I’m trying to design a workflow in term of steps and action on the motor/valve/fun/heater in order to start to define the skeleton of the software program


any suggestion and comment is appreciated
Davide

__________________
mysobry is online now
8
People Like This 
Reply With Quote Quick reply to this message
Old 01-28-2014, 11:19 PM   #2
Lopsy
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2013
Posts: 91
Liked 10 Times on 8 Posts

Default

I'm honored to be the first to reply. Damn, man.

__________________
Lopsy is offline
 
Reply With Quote Quick reply to this message
Old 01-28-2014, 11:27 PM   #3
plasmator
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2012
Posts: 15
Liked 3 Times on 2 Posts

Default

Wow, that drum looks like it was made for this job! I'm guessing that top-loading washing machines in Europe are different than those here in the US. Our drums sit 'vertical' with an open top. It looks like yours sit 'horizontal' and have a door in the round wall?

Fantastic idea and repurposing of materials. If my assumptions are correct, I'm disappointed that your project won't be very easy to replicate here in the US but here's to hoping I'm wrong on that

__________________
plasmator is offline
sablesurfer Likes This 
Reply With Quote Quick reply to this message
Old 01-29-2014, 01:18 AM   #4
Jim_Holmes
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
Jim_Holmes's Avatar
Recipes 
 
Join Date: Nov 2013
Location: Shelbyville, Illinois
Posts: 153
Liked 14 Times on 11 Posts
Likes Given: 1

Default

looks good ill be keeping an eye on this one. for replication here in the US with our drums maybe tack a plate over our open end and cut a side door with a piano hinge and hook clasp to lock it. didnt see the inside of the drum but maybe have a plate welded inside as a conveyer to lift the barley out of the water for a bit to allow air to it. as it comes around the malt would just fall off the shelf back into the water to be picked up again as it rotates. otherwise the grain would just sit in the bottom where the water is

__________________
Jim_Holmes is online now
 
Reply With Quote Quick reply to this message
Old 01-29-2014, 01:28 AM   #5
pickles
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
pickles's Avatar
Recipes 
 
Join Date: Feb 2008
Location: Columbus
Posts: 1,985
Liked 48 Times on 40 Posts
Likes Given: 23

Default

Quote:
Originally Posted by plasmator View Post
Wow, that drum looks like it was made for this job! I'm guessing that top-loading washing machines in Europe are different than those here in the US. Our drums sit 'vertical' with an open top. It looks like yours sit 'horizontal' and have a door in the round wall?

Fantastic idea and repurposing of materials. If my assumptions are correct, I'm disappointed that your project won't be very easy to replicate here in the US but here's to hoping I'm wrong on that
Staber makes the same style of washing machine in Columbus, Oh. So it's possible to make it in the states.
__________________
Gaptooth Brewhouse
pickles is offline
 
Reply With Quote Quick reply to this message
Old 01-29-2014, 01:31 AM   #6
elimn8u
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2013
Posts: 28
Liked 7 Times on 5 Posts
Likes Given: 10

Default

Wow, very nice work. Definitely inspiring.

__________________

'Sometimes when I reflect back on all the beer I drink I feel ashamed. Then I look into the glass and think about the workers in the brewery and all of their hopes & dreams. If I didn't drink this beer, they might be out of work and their dreams would be shattered. Then I say to myself, 'It is better that I drink this beer and let their dreams come true than to be selfish and worry about my liver.' --Jack Handy

elimn8u is offline
 
Reply With Quote Quick reply to this message
Old 01-29-2014, 03:53 AM   #7
dlaramie08
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2011
Location: Robards, Kentucky
Posts: 300
Liked 59 Times on 37 Posts
Likes Given: 2

Default

What's to keep the grain from falling through the little holes in your drum?

__________________
dlaramie08 is offline
 
Reply With Quote Quick reply to this message
Old 01-29-2014, 09:05 AM   #8
mysobry
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2011
Location: Ivrea, Italy
Posts: 81
Liked 16 Times on 8 Posts

Default drum malting

Thank you for your enthusiasm for the project !
Italian homebrewer community is quite active and I enjoy a lot to share with them my project..but as you can imagine for me going overseas and be guest in your forum where DIY homebrewing approach is so spread give me great stimulus and inspiration

Coming to some question raised
I was not aware about the different apporach of the washing machine between EU and US…also here top loading model are not so spread but looking but lloking in the junkyards is not difficult to find one…unfortunately I can’t ship one to US

Inside the drum there are 3 sectors / blades axially oriented , they are 3-4 cm high . I’m not sure about the level of water that is needed in the steeping phase ..I expect that the axial blade could collect some grains during drum rotation and lift the barley out of the water. Any suggestion on this ? I will provide some more picture asap

About the hole size I have a concern since are 2mm that is a little bit to big for the dry barley. There are also some little gap near the door My idea is to insert internally a very thin stainless steel woven to prevent grain exit.

Yesterday I have tested the heating fan ..just connecting to the inlet port and set the cover on top…even without 2 outlet fan there is a very good hot air air flow so I expect that I can extract easily humidity during the kilning phase

Now I will focus on the motor…do some empirical test with some step motor I have to understand if the torque is enough or I have to switch to a gear motor (the one used for rotisserie)

Stay tuned
Davide

__________________
mysobry is online now
 
Reply With Quote Quick reply to this message
Old 01-29-2014, 02:37 PM   #9
dlaramie08
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2011
Location: Robards, Kentucky
Posts: 300
Liked 59 Times on 37 Posts
Likes Given: 2

Default

You may want to make sure that your motor can turn relatively fast as this ability to tumble quickly will help get rid of the rootlets after kilning.

__________________
dlaramie08 is offline
 
Reply With Quote Quick reply to this message
Old 01-29-2014, 04:25 PM   #10
mysobry
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2011
Location: Ivrea, Italy
Posts: 81
Liked 16 Times on 8 Posts

Default

Quote:
Originally Posted by dlaramie08 View Post
You may want to make sure that your motor can turn relatively fast as this ability to tumble quickly will help get rid of the rootlets after kilning.
to be honest I have not thought about this final phase...I was more oriented to a manual removal of the rootles with a sieve

But I got the suggestion and the more I can automate the best is !

Davide
__________________
mysobry is online now
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Home Malt House Equipment build southpawbrasserie Equipment/Sanitation 16 08-28-2014 07:46 PM
Home Malting komomos General Beer Discussion 0 05-19-2013 03:02 PM
home malting brewyourown4life General Techniques 1 05-19-2011 07:06 PM
More Home Malting ClarnoBrewer DIY Projects 34 03-28-2010 03:06 PM
Malting- AT HOME Yongshan All Grain & Partial Mash Brewing 3 12-28-2007 03:02 PM