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Ice block Machine : My Experience Building It Locally - Business - Nairaland

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Ice block Machine : My Experience Building It Locally by Ravern: 6:26pm On Nov 08, 2020
Two iceblock machine I built during the lockdown


just built two locally made ice block machines during the lockdown and below is my experience.

The technician delivered the machine in 5 weeks instead of two weeks we agreed.
Our agreement was that each machine will produce minimum of 70 pcs of ice blocks within 24hours of steady light but that was not possible because it is difficult to have 24hour uninterrupted power supply and again when I fill the machine to capacity it becomes too difficult to harvest the ice block because water expands on freezing. So instead of putting 70 pcs, I normally put 54pcs multiply by two machines, that is about 108 pcs.
Also note what the market wants is not just ice blocks but "dry ice block".
What it means is that after the ice blocks freeze in the machine, you still need to leave it to harden almost turning white though during scarcity buyers may buy both dry and not dry ice blocks.

Another challenge I am having is that it is like the technician that built my own neglected to apply the principle of heat conduction and insulation while building the machine, the upper column of the machine and the door of the machine were not properly protected from heat loss hence the block from the top chamber and the blocks closer to the door of the machine do not freeze at the same rate as those inside the other chambers. I believe those ones at the top and near the door have heat passed to them via the metallic cover or there is a heat transfer from the block to the metals. So I also lose some ice blocks because of this.

Also attention was not not paid to the surface area of the pipe conducting the gas that freezes the water . If there is much gap in between the pipe in the machine, the machine will take longer time, also if the surface area of the pipe can be increase while in contact with the water, the block will freeze faster.

The horsepower and strength of the cooling air conditioner attached to the machine will either make or mar the production of the engine. For instance I withhold 25% of the cost of building the machine until I was sure the ac I agree with the technician worked as it supposed to work. Each of my machine is using 3hp ac and produces dry ice between 24 to 28hrs.

From what I learnt so far, I will build another machine based on my own design and specifications and I will do it when I have the chance to work side by side with the Technician.
The business is a little bit stressful because tying and loading the water is a time consuming process so also harvesting the block but it worth undertaking if one can employ helping hands, provide the alternative power supply as backup or have at least minimumof 16hrs power supply most times, and have the right market to sale.

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Re: Ice block Machine : My Experience Building It Locally by nuclearboy(m): 6:23pm On Nov 11, 2020
You tried to contact me?

08033272767

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