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Introduction: With the increasingly strict environmental protection requirements in China, the construction and use of coal-fired boilers are greatly restricted. At present, coal types are changeable, the economic development level of different regions is unbalanced, and the contradiction between coal burning and environmental protection is becoming increasingly prominent. It has become the development trend to effectively change the development mode of coal industry and further promote the clean and efficient utilization of coal. The fired coal boiler with high efficiency and low nitrogen has emerged, and has become the first choice of environmental protection coal-fired boiler for major enterprises.

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What is a clean fired coal boiler?

Under the strong guidance of the policy, the clean fired coal boiler represented by circulating fluidized bed boiler will usher in new development opportunities.

The circulating fluidized bed boiler produced by ZOZEN Boiler is a typical environment-friendly fired coal boiler, among which SHX, DHX, QXX and other series of circulating fluidized bed boilers not only have smoke emission data far superior to the national environmental protection requirements, but also have a comprehensive thermal efficiency of over 89%.

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Application of environmental protection fired coal boiler

ZOZEN Boiler, a manufacturer of environmental protection fired coal boiler circulating fluidized bed boiler, has accumulated rich project experience, and has a specific implementation plan of circulating fluidized bed boiler system. From pre-sales boiler selection to after-sales service such as installation and commissioning, it constantly improves customer satisfaction and creates a good market reputation of the company. Circulating fluidized bed boiler produced by ZOZEN Boiler is widely used in heating, chemical industry, food, tobacco, rubber, textile, feed, medicine, building materials, wine making and other industries.

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Environmental protection characteristics of fired coal boiler

Circulating fluidized bed combustion (CFBC) is a clean coal combustion technology with high efficiency and low pollution. This technology belongs to low-temperature combustion, which can realize low emission of nitrogen oxides at no cost by itself, and can be directly desulfurized in the combustion process, thus solving the emission problems of SO2 and NOx that are difficult to be solved by other fired coal boiler. Compared with the flue gas purification technology at the tail of the boiler, this method of direct desulfurization in the furnace is relatively simple and the cost is lower.

Boiler for the rubber industry
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As the fast developing of chemical industry, there are many kinds of rubber product with similar producing process, mainly including: raw material preparing, Plastic refining, mixing, calendering, forming, vulcanizing etc., and most of these sections needs steam. Besides, some high temperature machines such as pressing, kneading, banbury machines, vulcanization molding, injection molding machine, cement mixer, conveyor belt dryer and molds heating and insulation also need thermal oil heater.

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Structure of environmental protection coal-fired boiler:
  1. Boiler body: mainly includes starting burner, air chamber, air distribution device, furnace, gas-solid separator, material return device, steam drum, downcomer, water wall, superheater, economizer, air preheater, etc.
  2. Auxiliary equipment: mainly includes blower, induced draft fan, return fan, crusher, coal feeder, slag cooler, dust collector, desulfurization and denitrification equipment, chimney, etc.
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