The waste heat boiler system is mainly used for vertical kilns or rotary kilns in iron and steel enterprises, and waste heat recovery equipment for tail exhaust flue gas, including the waste heat boiler body in vertical or horizontal structure. The heating surface of the waste heat boiler body is arranged from top to bottom along the flue gas flow direction, with steam superheaters, evaporators and economizers. The top of the waste heat boiler body is equipped with drums; The inlet of the waste heat boiler body is installed with an inlet guide device, while the bottom of the waste heat boiler body is installed, and the waste heat boiler is installed with an ash discharge device; The heating surface of the waste heat boiler body is a spiral fin tube, which includes the base tube and the fin equipment fixed on the periphery of the base tube according to the spiral line, occupies a small area, which can effectively save equipment investment and civil engineering investment costs; Heat transfer surface of waste heat boiler adopts spiral fin tube to enhance heat transfer, with high heat efficiency and good sealing performance.
Waste heat boiler Type: 1. Refining catalytic reaction rate, hydrogen production (hydrogenation), sulfur powder recovery waste heat boiler; 2. Oil field steam injection heat treatment furnace, calcination paste waste heat boiler; 3. Industrial waste gas (liquid) incinerator and waste heat boiler for liquor, decoration formaldehyde, synthetic ammonia process and other production processes; 4. Boiler gas waste heat boiler.
In industries such as ferroalloy, coal mine and coking plant, waste heat boiler recycles a large amount of high-temperature flue gas discharged from smelting furnace, submerged arc furnace and coking furnace. Generally, these industries discharge a large amount of waste gas with high flue gas temperature and good flue gas quality, and the industry itself consumes a large amount of electricity. Most of these waste heat boilers are used for waste heat recovery to produce steam for power generation;
Thermal power plant and other industries. The coal-fired boiler of thermal power plant emits a large amount of high-temperature flue gas, and the heat loss of flue gas from the boiler of thermal power plant generally accounts for 5%~10% of the boiler heat, so it is necessary to provide a waste heat boiler. It is worth mentioning that the waste heat boiler is usually used together with the low-temperature economizer in thermal power plants to make full use of the waste heat of flue gas and achieve remarkable economic benefits of energy conservation. In industries such as internal combustion engine power plants, combustion of internal combustion engine fuel will also emit high-temperature flue gas. More and more internal combustion engine power plants are now equipped with waste heat boilers.
In petrochemical industry and other industries, high-temperature flue gas discharged from boilers and other equipment during petrochemical production and refining process Waste heat boiler Waste heat recovery, usually output steam or hot water for heating and transmission of crude oil.
