How to measure the density and moisture content of sawdust

锯末做发酵床垫料

Sawdust is the best fermented mattress material because sawdust has the highest carbon nitrogen ratio and is most resistant to fermentation in all litter. At the same time, loose and porous sawdust, air permeability and water retention are also better. The fineness of sawdust is just right for the requirements of a fermentation bed. Due to the difference in wood and processing methods, the type, humidity, and quality of sawdust vary greatly and should be carefully managed during purchase and use. So, how to measure the density and moisture content of sawdust? The technicians of the golden baby dry fermentation machine teach you how to measure the sawdust density and moisture content, and finally calculate the sawdust weight for your reference:

1, material preparation

Rectangular carton: length 0.35m, width 0.19, height 0.21m (volume=0.014 m3)
Electronic scales: Sawdust to exactly 2 digits: Fresh sawdust just brought back from sawdust

2, the first measurement data

FCL (loose): 5.61kg
FCL (compaction): 7.54kg
Box weight: 0.4kg
The density when fresh sawdust is loose ρ1=5.61-0.40/0.014=3.72*10^3 kg/m3
Fresh sawdust real-time density ρ2=7.54-0.40/0.014=5.10*10^3 kg/m3

3. Second measurement data (measured after 3 days of drying)

FCL (loose): 3.13kg (not full boxes)
FCL (loose): 3.58kg (full container)
FCL (compaction): 4.60kg
Box weight: 0.4kg
Density when dried sawdust is loose ρ1=3.58-0.40/0.014=2.27*10^3 kg/m3
Drying sawdust real-time density ρ2=4.60-0.40/0.014=3.00*10^3 kg/m3

4, the sawdust dehydration water content calculation

FCL (Loose) Loss of Water: 5.61-3.13 / 5.21 = 47.60% (Not Full)
FCL (loose) Loss of water: 5.61 - 3.58/5.21 = 38.96% (full box)
FCL (compaction) Loss of water: 7.54-4.60/7.14 = 41.18%
The overall calculated water loss: 5.61+7.54-3.13-4.60/(5.21+7.14)=43.89%
Average dehydration content: (47.60%+38.96%+41.18%+43.89%)/4=42.90%
The following conclusions can be drawn: 1 The total volume of dried fresh sawdust during drying is reduced; 2 The average water content of fresh sawdust is approximately 60% to 65%, and the average density is 4.41*10^3 kg/m3 ( A ton of about 2.5 square meters) 3 dried sawdust average water content of about 15% to 20%, the average density of 2.64 * 10 ^ 3 kg/m3 (a ton of about 3.8 square) can consult: Beijing Huaxia Kangyuan Technology Limited The company's telephone toll-free hotline Taobao purchase fermentation strains please click

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