kiln burner

kiln burner

cement kiln burner overview

A cement kiln burner is a device to achieve the burning process. Reasonably, Organize the burning process to ensure the firebox’s thermal technology can meet the demand of technology and the economy. The head structure of the rotary kiln burner has undergone high-temperature and wear-resistant treatment which can effectively increase the service life of the equipment.

We provide a variety of cement spare parts and cement plant equipment and can provide customized services according to the drawings provided by users.
The cement kiln burner is a kind of specially engineered burner for nonferrous metallurgy, the chemical industry, cement, steel industry, etc. At present, this series of burners adopts different flame lengths and diameters, adopting a multichannel structure.

The fuel of a rotary kiln burner could be for high calorific value gases such as natural gas and liquefied petroleum gas as well as other low calorific value gases such as electric furnace gas and converter gas which can effectively reduce fuel costs. You can use a single fuel or multiple fuels. According to the working conditions, the rotary kiln burner could use multiple fuels.

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rotary kiln burner characteristic

  • Single air jets for enhanced recirculation with hot secondary air
  • Concentric injection of all fuels and primary air components
  • Adjustable central air for increased AF-Combustion (avoids double flame)
  • Primary air supply using rotary blowers (high momentum)
  • Each primary airflow and pressures are measured (prepared for full-automatic mode)
  • Optimized burner diameter about kiln diameter
  • Modular designed burner and easily adaptable for a fuel change
  • Fewer wear parts / low maintenance costs

How to cement kiln burner works

Maintaining the proper heat profile of a rotary kiln is of the utmost importance in realizing the lowest Btu per ton of production as well as the highest quality product. To achieve the optimum burner flame shape and the most efficient combustion possible, the rate of mixing of both the air and fuel through the burner is paramount.
Independent manual adjustment valves are installed on the clean air channels of axial and swirling air and combined with adjustable cyclone mechanisms the shape and intensity of the flame can be freely and flexibly adjusted.

Rotary Kiln Burners are capable of adjusting the flame shape and intensity while in continuous operation with no shutdown necessary. This eliminates costly downtime and process temperature fluctuations that may otherwise affect your kiln’s heat profile and overall efficiency.
In other words, although the rotary kiln burner is custom-engineered for your specific target burning rate an operator may reconfigure the burner with simple, easy-to-perform adjustments should production parameters dictate a change in fuel consumption or flame shape. Rotary kiln burners are capable of 10:1 turndown and can operate as much as 50% over the target design firing rate.

rotary kiln burner design

Rotary kiln burner design revolves around three key focal points: fuel combustion efficiency, heat transfer optimization, and emissions control.

Each rotary kiln burner is designed according to the design principle of “one kiln type one design”.

Additionally, rotary kiln burner design encompasses features prioritizing reliability, maintenance ease, and scalability. Ensuring reliable burner performance involves the selection of durable materials, accessible components, and advanced diagnostic capabilities. These factors contribute to minimizing downtime and ensuring uninterrupted kiln operation. Moreover, burners must be designed with maintenance considerations in mind, facilitating routine inspections, repairs, and replacements.

Lastly, scalability is crucial for accommodating variations in kiln size, production capacity, and process requirements. Burner designs should be adaptable to diverse operational scenarios, enabling seamless integration into both new installations and existing kiln systems while maintaining optimal performance and efficiency levels.

cement kiln burner features

  • Operator-friendly: Simple, easy-to-perform adjustments allow for the burner to have a wide range of flame-shaping abilities and combustion optimization over an extreme range of firing capacities
  • Efficient: Flame shaping and flame aiming ability allow the user optimum control of the kiln’s heat profile which results in the highest product quality and the lowest Btu/ton of production in the industry
  • Versatile: Can be designed for any rotary kiln process or stoichiometric air requirement including kilns with high levels of restrained secondary combustion air (tube coolers) to maximize system heat recovery
  • Low emissions: Clean burning and efficient dual annulus gas gun with unique adjustable gas orifice minimize burner emissions such as NOx and VOC.
  • Superb burner turndown: Dual air zones feature an inner zone with a swirl air diffuser for maximum fuel/air mixing surrounded by an enveloping outer air annulus. It’s like two burners in one.
  • Multi-fuel capability: Burners can be designed to operate on single or multiple fuels simultaneously. Capabilities include natural gas, propane, steam, air and mechanically atomized fuel oils, methanol, hydrogen, NCG/TRS gas, petroleum coke, pulverized coal, and other solid fuels
  • Industrial hardened: Heavy-duty quality material construction features high-grade stainless steel alloys on components where exposed to the hot process or corrosive fuels and/or materials. Additional stainless reinforced refractory is factory pre-cured and added to the outer blast pipe preventing uneven heating and warping

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