Low nitrogen incinerator refers to the incinerator with low NOx emission during fuel incineration. In ancient times, the NOx emission of natural gas boiler incinerator was 120-150mg / m3. However, the NOx emission of low nitrogen incinerator is in the range of 30-80? Mg / m3.
When the NOx emission is below 30mg / m3, it is called ultra-low nitrogen incinerator. Incinerators have many kinds of classification methods according to their different properties.
According to the fuel method, it is divided into fuel oil incinerator, gas incinerator and dual fuel incinerator. In the detailed application, fuel oil incinerator will be divided into light oil incinerator, heavy oil incinerator, etc.; gas incinerator will be divided into natural gas incinerator, metropolitan gas incinerator, etc.
According to the incineration mastering methods of the incinerator, they are: single stage fire incinerator, double stage fire incinerator and proportion adjustment incinerator.
According to the fuel atomization methods, they are: mechanical atomization incinerator and medium atomization incinerator;
According to the layout, they are: integrated incinerator and split incinerator. This split type incinerator is mainly used in industrial manufacturing. Its main characteristics are: the incineration system, air supply system, control system, etc. are all explained and arranged. This kind of machinery is mainly used in large-scale buildings or high-temperature foreign affairs. Relatively speaking, due to the mass production of the incinerator for trade and the low demand for professionalism in the environmental trend supply chain, the environmental trend selling cost of the product is relatively cheap, while the split incinerator is relatively high due to the high demand for professionalism and numerous need for professional placement forces, and the environmental trend selling cost is relatively higher than the previous year.
Technical appearance of low nitrogen incinerator
Low NOx incinerator refers to the incinerator with low NOx emission in the fuel incineration process. The acceptance of low n0x incinerator can reduce the NOx emission in the incineration process.
Flue gas recycling incineration technology
Flue gas recycling technology is a kind of low nitrogen oxide technology, which introduces the exhaust gas from one-sided boiler into the furnace and carries out incineration with natural gas and atmosphere.
With the application of flue gas recycling technology, the combustion temperature in the focus area of the boiler is low, and the excessive atmosphere coefficient is fixed. Under the condition that the boiler is not low, the production of nitrogen oxide is restrained, and the goal of low nitrogen oxide emission is reached.
10% - 25% of the exhaust gas from the boiler is arched back to the front end of the boiler through the FGR smoke pipe from the main exhaust pipe of the boiler, and the smoke volume is regulated through the regulating damper on the FGR smoke pipe; the combustion supporting atmosphere is lagged behind the frequency conversion fan through the fresh air filter, and is boosted by the fan to the front end of the boiler; the fuel gas is sent to the front end of the boiler through the double stop valve group and the servo regulating valve; the exhaust gas and combustion supporting atmosphere of the boiler are mixed after the inclusion device, With the fuel gas ejected from the sub planned nozzle, a solid flame is created in the boiler.
Decentralized incineration technology
This is a simple incineration method, the advantages of which are simple, easy to burn, no tempering, incineration consolidation and simple layout of gas appliances. The disadvantage is that the high calorific value gas with large atmosphere demand can not be completely incinerated by laminar dispersion, the CO content in flue gas is relatively high, and the detailed combustion volume is not large. Forced blast decentralized incineration is widely used in industrial incinerators.
——Author：ebico