The cost of a 35-ton coal-fired steam boiler includes:
1. Of course, a coal-fired boiler must have a coal-fired boiler room
1) Thermal coal: The calorific value is about 23020kj/kg (5200kcal/kg), and the factory price is 680 yuan/t. 0.21t/h×680 yuan/t=142.8 yuan/ton steam.
2) Tap water cost: water used for smoke removal and desulfurization granite dust collector, slag remover, sedimentation tank, softened water treatment, fan cooling, etc. A very small amount of condensed water is recycled. (90+25)t/h×5.6 yuan/t÷85t/h=7.577 yuan/ton steam.
3) Water treatment fee: 95t/h×2 yuan/t÷85t/h=2.235 yuan/ton steam.
4) Electricity fee: including the electric power used by motors such as the induced draft fan, feed water pump, coal feeding belt, dust removal circulating water pump, slag removal system, electric iron remover, and coal crane. 1380kW×0.57 yuan/kWh÷85t/h=9.254 yuan/ton steam.
5) Slag cleaning fee: 0.21t/h×35%×20 yuan/t=1.47 yuan/ton steam.
6) Labor cost: per capita salary is 5500 yuan; 32 people/shift×31.25 yuan/(person·h)÷85t/h=11.765 yuan/ton steam.
7) Machine repair: In 2011, the cost of machine repair was 4.79 million yuan. The annual steam production is 300,000 tons. The cost of a combined ton of steam is 4.79 million yuan ÷ 300,000 tons of steam / year = 15.967 yuan / ton of steam.
8) Desulfurization plus quicklime: 0.8t/h×280 yuan/t÷85t/h=2.635 yuan/ton steam.
9) Loader: 3200 yuan/d÷16h÷85t/h=2.353 yuan/ton steam.
10) Boiler blowdown fee: 600,000 yuan / year ÷ 300,000 tons of steam / year = 2.0 yuan / ton of steam.
The total cost price of one ton of steam: 198.351 yuan.
This is the price of a ton of steam produced by a 35-ton coal-fired boiler. Of course, this price is only a reference value. After all, there are many price factors that affect the cost of the boiler, such as local coal-burning costs, electricity costs, and labor costs, etc., for each region These costs are all different. After all, coal prices in Shanxi are much cheaper than those in other regions. As for the annual operating cost of a 35-ton coal-fired steam boiler, you need to look at the annual ton of gas produced by the boiler to calculate the annual ton of steam. I will not calculate it here.
All in all, whether it is for companies to use boilers or personal use of boilers, the most important concern is the cost of boilers. One of the ways to reduce boiler costs is to improve thermal efficiency, which is also the area where major boiler plants are devoted to research. If the local environmental protection requirements allow the use of coal-fired boilers, and the cost is within a controllable range, there is no need to replace the boilers. On the contrary, it is better to follow the national policy.
Therefore, it is still recommended that if there is a demand for steam boilers or hot water boilers, it is better to carefully select the boiler manufacturer. There are many boiler manufacturers in China, but there are not many well-qualified ones. There are only a few that can have A-grade boiler manufacturing qualifications. For example, Fangkuai Boiler has A-grade boiler manufacturing qualifications and first-grade boiler installation qualifications. Focusing on condensing boilers for more than 20 years, it is the leader of domestic condensing boilers. And the boiler equipment of the big factory is guaranteed, the price is low, and the after-sales is good. For example, the common natural gas boiler quotation, the factory direct price. In addition, the thermal efficiency is high, and the heating area is larger than that of general boiler manufacturers. Some common boiler problems can be avoided, and the cost of gas boilers is reduced, corresponding to the increase in the cost performance of boilers.
