Difference between revisions of "Biogas-Plant/C3/Construction-of-the-Mixing-tank/English-timed"
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| − | | This is an activity to be done on Day 2. | + | | This is an activity to be done on Day-2. |
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| − | | Let’s first understand the significance of the mixing tank and shape of the mixing tank. | + | | Let’s first understand the significance of the mixing tank and the shape of the mixing tank. |
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| − | | The step-by-step procedure to construct mixing tank is as follows- | + | | The step-by-step procedure to construct the mixing tank is as follows- |
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| − | | Now tie the loose ends, end to end with steel wire. | + | | Now tie the loose ends, end to end, with steel wire. |
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| − | | liquid waterproofing material - 50 ml thoroughly stirred in 10 litres of water | + | | liquid waterproofing material - 50 ml, thoroughly stirred in 10 litres of water |
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| − | | This must be done carefully so as | + | | This must be done carefully so as to not break the plastered outer wall of the mixing tank. |
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| − | | At this point the mixing tank is ready to be transferred to the actual plant site. | + | | At this point, the mixing tank is ready to be transferred to the actual plant site. |
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| − | |Remember | + | |Remember, the following has to be completed on the same day i.e day-2 of civil work. Hence, the mason has to plan accordingly. |
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| − | | Let’s Summarize. In this tutorial, we learnt | + | | Let’s Summarize. In this tutorial, we learnt the significance of the mixing tank |
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| − | | More information on | + | | More information on these projects is available at these given links. |
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Latest revision as of 14:53, 6 December 2016
| Time | Narration |
| 00:02 | Hello everyone and welcome to this Spoken Tutorial on construction of the mixing tank. |
| 00:12 | This is an activity to be done on Day-2. |
| 00:18 | In this tutorial, we will learn the significance of the mixing tank and how to construct a mixing tank. |
| 00:31 | Let’s first understand the significance of the mixing tank and the shape of the mixing tank. |
| 00:44 | Mixing tank is where biomass is mixed with water and passed into the digester tank. |
| 00:55 | The mixing tank is usually cylindrical in shape. |
| 01:02 | A mixing tank of height 2 feet and diameter 22 inches has the capacity to hold 25 kgs of manure mixed in water. |
| 01:22 | However, dry manure should never be put into this tank. |
| 01:29 | Manure should always be mixed in equal quantity of water. |
| 01:37 | For example, 25 kgs of manure should be mixed in 25 liters of water. |
| 01:50 | This will ensure free flow of the biomass into the digester tank. |
| 01:59 | Let’s see the construction of the mixing tank. |
| 02:05 | For construction, following items are used- |
| 02:12 | Weldmesh sheet of thickness 16 gauge, |
| 02:18 | some newspaper, |
| 02:21 | sand, |
| 02:23 | cement, |
| 02:25 | and liquid waterproofing material. |
| 02:31 | The step-by-step procedure to construct the mixing tank is as follows- |
| 02:41 | Spread the Weldmesh sheet of 69 inches x 24 inches on the ground. |
| 02:52 | Next, at a distance of 34 inches from one end of the sheet, make a hole of size 4 inch diameter with a metal cutting scissor. |
| 03:08 | Now tie the loose ends, end to end, with steel wire. |
| 03:17 | We need to make a cylinder like structure with diameter 22 inches and height 24 inches. |
| 03:31 | Note that the hole has to be at the base of the mixing tank. |
| 03:40 | Now, place newspaper or any other paper inside the structure. |
| 03:50 | The paper will help hold the sand that will be filled inside this structure. |
| 03:59 | Pour sand up till the brim of the structure. This will give firmness to the mesh while plastering the outer wall. |
| 04:14 | Now, we will plaster the outer wall of the mixing tank. |
| 04:23 | Prepare cement mixture as follows- |
| 04:30 | sand- 75 kgs, |
| 04:34 | cement-25 kgs, |
| 04:40 | liquid waterproofing material - 50 ml, thoroughly stirred in 10 litres of water |
| 04:51 | and adequate water to mix this mixture well. Note that no gravel is used in this mixture. |
| 05:05 | Start plastering the outside wall of the mixing tank as shown here. |
| 05:14 | Finally, smoothen the plastering using a wooden trowel. |
| 05:22 | The mixing tank should be left overnight for curing. |
| 05:29 | Next day, take out all the sand placed inside the mixing tank. |
| 05:38 | This must be done carefully so as to not break the plastered outer wall of the mixing tank. |
| 05:51 | Once the sand is taken out, plaster the inside wall of the mixing tank. |
| 06:02 | Prepare fresh cement mixture as was prepared for outer wall of the mixing tank. |
| 06:13 | Spread half inch of this mixture on the inside wall. |
| 06:21 | While plastering, please remember the position of the hole that is at the base. |
| 06:30 | We need to break the plaster from here, later. |
| 06:37 | Let the plaster on the inside wall dry for 6-7 hours. |
| 06:48 | After 6 to 7 hours, remove the plaster at the position of the hole by slightly tapping it. |
| 07:00 | At this point, the mixing tank is ready to be transferred to the actual plant site. |
| 07:12 | Remember, the following has to be completed on the same day i.e day-2 of civil work. Hence, the mason has to plan accordingly. |
| 07:30 | This brings us to the end of this tutorial. |
| 07:35 | Assembly of the mixing tank for the biogas plant will be explained in a later tutorial. |
| 07:45 | Let’s Summarize. In this tutorial, we learnt the significance of the mixing tank |
| 07:56 | and how to construct a mixing tank. |
| 08:01 | This video was created by Spoken Tutorial project along with inputs from Rural-ICT Project, IIT Bombay. |
| 08:15 | More information on these projects is available at these given links. |
| 08:23 | This is Bella Tony along with the animation team from Spoken Tutorial Project, IIT Bombay, signing off.
Thank you for joining. |
