How much does it cost to dry a ton of sawdust

May 28, 2020

Many friends who invest in the production of biomass pellet fuel production line often want to know the cost of drying sawdust during cost accounting. Today, the machine calculates the cost of drying one ton of sawdust for you.

The cost of drying one ton of sawdust is mainly concentrated in the cost of raw materials, Water loss, and Labor cost. Therefore, in order to calculate the drying cost, we need to know the price of raw materials? Raw material moisture? Moisture after drying? What is the drying capacity per hour?


1. Take the model 560 biomass pellet machine production line as an example, the output is 1-2T/H, and the raw material moisture is 40% to 15%. The engineer’s experience is worth the dryer’s evaporation per hour is 625kg, considering the drying Due to the thermal efficiency of the dryer, the GHG 1.4*12m drum dryer is selected, the drive motor is 5.5KW, the induced fan is 11KW, the discharge off fan is 3KW, the total power is 19.5KW, according to the dryer power and power consumption 80% Experience, power consumption is 16.5KW per hour. According to the national average electricity price of RMB 1 yuan/kwh, the hourly electricity consumption of the dryer is RMB 16.5 yuan/h.

2. Fuel consumption.

If the firewood is calculated according to the calorific value of 4000 kcal, the dryer needs to burn 97.5 kg of firewood for drying 625K of water. According to the market price of RMB300 yuan per ton of waste dry wood, the fuel cost is about RMB97.5 yuan.

3. With regard to labor costs.

If wood chip drying is done separately, this dryer requires two operators, one is responsible for driving the forklift to feed and guide the material. One is responsible for burning fire and inspecting the working condition of equipment. If it is combined with the production line, the single drying section needs a worker. According to the national average labor price of RMB 100 yuan, the one-hour cost is RMB 12.5 yuan. Because the output is 1-1.5 tons, the ton cost is RMB 10 yuan.


Based on the above, the cost of drying sawdust with 40% moisture to 15% is 16.5+97.5+10=RMB 124 yuan. Adding 40% moisture sawdust that you bought for 300 yuan per ton, the price for removing moisture is RMB 434 yuan +RMB 124 = RMB558 yuan.

After the cost of sawdust plus the drying cost, the price of one ton of raw materials becomes RMB 558 yuan per ton. This data is relatively accurate. This is the Chinese market, you can calculate it according to your market.