Heat Systems Carbon Regeneration Kilns are ideal for all Carbon Recovery needs. The TR Series Kilns are designed and engineered with three main principles in mind:
To extend the life of the equipment;
To perform servicing and maintenance with less difficulty; and
Designed with the ability to plug-in additional units.
The Heat Systems TR Series Kilns are SCADA ready and have remote access capabilities. Your process can be monitored from a mobile device, from anywhere in the world. Additionally, we can update process parameters on the TR series kilns within 24 hours of receiving your service request, without having to put boots on the ground.
Indirect Fired Kilns
Indirect fired kilns have proven to be the ‘work-horse’ of carbon regeneration for decades. The concept of the equipment is basic and consists of a rotating tube within a hot combustion chamber. This tube is fed with fouled carbon from a feed screw. Since the tube has a slight slope and contains angled lifters, its rotary motion imparts a gentle momentum to the carbon. The gentle motion serves to expose the carbon to the regenerative atmosphere and heat transfer surfaces whilst taking care not to fracture the carbon.
The kiln heat tube has a variable speed capability which has an influence on residence time. This in turn has an effect on the quality of the carbon regeneration. Every rotation removes a ‘cut’ from the solid bed using a simple scroll mechanism. As carbon flows through the tube it is dried and regenerated (or reactivated) to approximate or better than it’s initial virgin state.
There are 5 standard kiln sizes on offer. The heat tube in each model is limited by carbon volume and the volumetric throughput rates below can be converted to mass throughput rates once the bulk density is known.
TR550 < 0.7 m3/h
TR800 < 1.4 m3/h
TR1200 < 3.4 m3/h
TR1800 < 6.5 m3/h
TR2100 < 8.7 m3/h
Each model is designed to handle carbon that has up to 50% moisture content. However, It is important to note that these throughput values are based on a set 20 minutes residence time. If more residence time is needed then these throughput volumes should be de-rated accordingly. If you are unsure of your specific process needs, please contact us and we will provide a customized assessment for your application.
Furthermore, each kiln can be provided with a customized fuel option, ranging from LPG, Natural Gas, Diesel, Heavy Oil, Electric and Biogas. Operating temperatures of between 950-900 degrees celcius are typical.
The carbon hoppers have been designed to effectively and efficiently dewater the carbon prior to entering the kiln. This style of hopper provides a much more user friendly dewatering option and is almost impossible to block;
Cutting edge seal design;
Provision of a ‘dewatering complete’ signal which avoids subjective and wasteful downtime as well as ensuring consistent feed moisture content for optimum regeneration;
More efficient heat transfer achieved through features such as a curved top cover, finned heat tube, optimized baffle plate design and the application of innovative insulation and heat absorbent paint;
Added and improved inspection hatches, easily accessible bolts and lifting lugs;
The split discharge chamber design means that a heat tube change can be completed within hours, rather than days;
There is no requirement for any product pre-drying with the TR series kiln. This is historically a high maintenance and blockage prone area of the process. Our design maintains high energy efficiency via extended heat transfer surfaces around the tube;
Dewatering within the hopper as well as below the hopper through the easy service pipe screen; and
In contrast to other manufacturers, the TR series kiln does not require a water cooled discharge chamber, therefore removing the requirement for the supply of large and constant volumes of cooling water. A dry back-end prevents historical issues with tar condensation and blockage in this area.
Access your data anytime from any location;
Controls fully integrate with SCADA systems;
View on multiple devices;
The system can be installed in several languages;
control of the unit from any mobile device; and
Alerts when the kiln needs attention.
About Carbon Regeneration
Heat Systems has placed a great deal of focus on the development of an efficient and effective de-watering system which we believe will maintain consistent feed moisture time and time again. The benefit of this cannot be overstated, since consistent moisture presentation inevitably leads to consistent regeneration.
We also believe that pre-drying often leads to poor regeneration due to the resultant lean steam environment in the tube. Although often misunderstood, over-drying can result in the gasification and destruction of the carbon skeletal structure which in turn leads to higher vulnerability for fines generation and subsequent mineral losses from the process. For this reason, we advise against the use of complicated and blockage-prone thermal pre-drying in favour of a three-stage physical de-watering system.
Heat systems has also placed considerable focus on the design of the kilns mechanical seal (patent pending). The mechanical seal serves to isolate the combustion gases within the combustion chamber from the steam, gaseous foulants and carbon within the rotating heat tube. Based on reams of feedback from the field it’s apparent that seal failure is often commonplace, and regularly leads to unscheduled and significant maintenance downtime and safety infringements (e.g. backed-up carbon entering the combustion chamber via the seal, leading to temporary uncontrolled combustion and insulation / burner failure). We believe that our seal is vastly superior to comparable equipment on the market.