Cost of 75 Ton Boiler

Boilers can be divided into coal-fired boilers, gas-fired boilers, oil-fired boilers, electric heating boilers, and biomass boilers according to the fuel used. Understanding the operating costs of various fuels can reduce boiler operating costs, thereby increasing the economic benefits of the enterprise. This is a factor that must be taken into consideration.

1. Technical parameters of 75-ton coal-fired steam boiler:

Capacity: 75 steam tons

Thermal efficiency: 85—92%

Rated steam pressure: 1.0 – 2.5 Mpa

Rated steam temperature: 184 – 350 ℃

Applicable fuel: Bituminous coal, lean coal, anthracite

Application: Heating, chemical, food, tobacco, textile, print and dyeing, feed, medicine, building materials, wine, hospital

2. The coal consumption of a 75-ton coal-fired steam boiler:

First look at the type of coal that is burned. Different coal types have different combustion efficiency and natural coal consumption. Therefore, it cannot be calculated according to standard coal, which will have a large error. The calorific value of inferior coal is between 18000KJ / kg — 23000KJ / kg.

The coal consumption of a 75-ton coal-fired steam boiler can be obtained through a calculation formula, the formula is as follows: coal consumption of the boiler = boiler power * 3600 / coal combustion heat / boiler efficiency.

Calculated according to the calorific value of burning inferior coal of 4000 and the boiler efficiency of 85%, then the coal consumption of a 75-ton coal-fired steam boiler is 1.25 * 3600/4000 / 0.85 = 1.323 tons.

3. Operating cost of a 75-ton coal-fired steam boiler:

Fuel cost: 0.2 tons of coal consumed per ton of steam, the unit price of coal is 400 yuan / ton, the total cost is 80 yuan; the fuel cost for a 75-ton coal-fired steam boiler is 80 * 75 * 8 * 360 = 172.8 Ten thousand yuan.

Electricity cost: The consumption is 9.6Kwh, the price of electricity is 0.58 yuan / degree, the total cost is 42 yuan, and the annual power consumption cost of a 75-ton coal-fired steam boiler is 42 * 8 * 360 = 12,000 yuan.

Ash and slag disposal costs: 30,000 yuan / year;

Environmental protection fee: 100,000 / year;

Labor cost: 6 people are needed, 20,000 yuan / person.

Total: The annual operating cost of a 75-ton coal-fired steam boiler is: 1.728 million + 12,000 + 30,000 + 100,000 + 120,000 = 1.99 million yuan.