Multi-Channel Burners

Introduction to NHSB Burner

The combustion of pulverized coal is a very complex physical and chemical process. The composition and reaction characteristics of coal are very different. Different types of coal, different technological processes and different kiln types have different requirements for burners, especially low-quality coal (high-ash coal, anthracite, etc.), its combustion effect is better The working area is relatively narrow, and the adjustable margin of the burner is small, so the performance requirements of the burner are higher. The same burner for different coal, different process conditions will produce different results, the number of burner channels is not the determinant of the performance of the burner, the key factor lies in the rationality of the burner structure parameters and the adaptability of the coal and process. Therefore, the burner is a thermal equipment with high technical requirements.

The NHSB burner can burn all kinds of pulverized coal, of which inferior coal has more advantages. Has the following features:

The designer has long been engaged in the theoretical research of pulverized coal combustion dynamics, has good experimental research methods, can provide a variety of pulverized coal combustion characteristics test, its theoretical research and test level has been the domestic position.

◆For different types of coal, different enterprises, and different requirements, on the basis of experimental and theoretical research, targeted personalized design can be carried out, and the structure and operating parameters can be optimized to ensure that the user's coal is in a better combustion state.

◆ independent oil ignition system, convenient and flexible, free paste porcelain, to solve the problem of coal powder wear.

◆ To prevent the coal powder from sinking before burning embers, strengthen the heat transfer, burning embers process, especially suitable for anthracite and low-quality coal.

◆ It can avoid the corrosion of harmful gas in the kiln to the burner head and prolong the service life of the burner

The amount of primary air is low, accounting for less than 10% of the combustion air volume.

◆ The low-quality coal and low-volatile anthracite can also maintain a high combustion efficiency, eliminate insufficient combustion, achieve high-intensity combustion, strong flame, reasonable structure, convenient adjustment, flame shape can meet the needs of various kiln conditions, is conducive to cement clinker grain and f-CaO absorption, so as to achieve the purpose of improving the quality of cement clinker. The potential of production equipment can also be fully exploited to increase production.

Fluid dynamics design, even small rotary kiln does not brush the kiln skin. It is beneficial to the protection of kiln skin and refractory bricks.

The secondary air temperature requirements are low, especially suitable for small and medium-sized cement plant with low cooling machine efficiency, such as single cylinder cooling machine.

High temperature resistant metal material, long service life.

◆Simple structure, convenient operation, flexible adjustment, due to reasonable design, low level requirements for operators, small daily maintenance workload, and optional automatic control system for adjustment and control in the central control room and instrument room.

The power consumption of the combustion system can be reduced to a low level, and the optimization design of the whole system can be realized. The effect of energy saving is obvious.

◆ It is beneficial to reduce the NOx concentration of the system and protect the environment.

2. product specifications