- Product：600 tons/day double chamber lime kiln
- Product alias：Parallel flow thermal storage lime kiln
- Calcination technology：countercurrent calcination
- Capacity scale：600T/P
- Control system：PLC control system
- Unit energy consumption：120-125kg tandard coal
- Usage：Metallurgy, construction lime calcination
- Price：Cost varies based on production capacity scale
n the field of lime production, efficient, environmentally friendly, and energy-saving kiln equipment is a key factor in the development of the industry. As an advanced lime production equipment, the 600 ton daily double chamber lime kiln occupies an important position in the lime production industry with its unique double chamber structure and process principle.
1、 Double chamber lime kiln structure
The dual chamber lime kiln with a daily output of 600 tons is mainly composed of kiln body, combustion system, material distribution system, cooling system, ash discharge system, and control system. Among them, the kiln body adopts a dual chamber structure, namely a calcination chamber and a heat storage chamber, which are connected through connecting channels. This structure enables the dual chamber lime kiln to fully utilize thermal energy and improve energy utilization efficiency during the calcination process.
Kiln body
The kiln body is the main part of the double chamber lime kiln, which is divided from top to bottom into pre heating zone, calcination zone, and cooling zone. Pre heating zone is mainly used for preheating limestone and recovering waste heat from flue gas; The calcination zone is the main area for limestone decomposition, which is caused by the high temperature generated by burning fuel; The cooling belt is used to cool the decomposed lime and improve its activity.
combustion system
The combustion system is located in the calcination zone and adopts an efficient burner, which can fully burn fuel, generate high-temperature flames, and provide necessary heat for the decomposition of limestone. At the same time, the combustion system is also equipped with a flue gas treatment device, which can effectively reduce the emission concentration of harmful substances in the flue gas and protect the environment.
Fabric system
The fabric system is located on the top of the kiln, and the screened qualified stones are sent to the kiln top material bin by a winch car. Then, the stones are divided into two rotating hoppers in the kiln chamber by a reversible belt. The rotary distributor ensures that the stones are evenly distributed in the kiln, achieving gradient combustion and reducing the rate of overburning.
Cooling system
The cooling system is located in the cooling zone, and the decomposed lime is quickly cooled to a suitable temperature through cooling air, improving the activity of the lime. At the same time, the cooling air also has a certain dust removal effect, which can reduce the dust content in lime. Ash discharge system
The ash discharge system is located at the bottom of the kiln, and the cooled lime is discharged outside the kiln through a disc ash discharge machine. The ash discharge system adopts automatic control, which can ensure the continuous production and stable output of lime.
control system
The control system adopts an advanced human-machine interface control system, achieving full automation control of the dual chamber lime kiln. Through the control system, real-time monitoring of parameters such as temperature, pressure, and gas composition inside the kiln can be carried out, and the working status of the combustion system, distribution system, etc. can be adjusted according to the actual situation to ensure the smooth progress of lime production.
2、 Process principle
The dual chamber lime kiln with a daily output of 600 tons adopts the principle of parallel flow thermal storage calcination. During the calcination process, the combustion air, fuel, and materials all flow downwards from the upper part of the calcination zone, with the three flowing in the same direction, achieving gradient combustion. This combustion method can fully utilize thermal energy, reduce the rate of calcination, and improve the activity and quality of lime. At the same time, the two chambers of the dual chamber lime kiln alternate for calcination and heat storage, ensuring the continuity and stability of lime production.
3、main parameter
The following are the main technical parameters of a dual chamber lime kiln with a daily output of 600 tons:
| parameter | value |
|---|---|
| Daily production | 600TPD |
| Kiln type | Parallel flow heat storage dual chamber lime kiln |
| Combustion principle | Parallel flow thermal storage calcination |
| fuel | Gas fuel, solid fuel, liquid fuel |
| Heat consumption | 840~860kCal/Kg Lime |
| Exhaust gas temperature | Approximately 70-150 ℃ |
| Raw material particle size | 20-40mm, 30-60mm, 40-80mm, 80-120mm |
| Lime overfiring rate | ≤5% |
| Lime quality | Activity>370ml-420ml |
| Kiln utilization rate | high |
| Thermal energy recovery efficiency | ≥60% |
| Smoke emission concentration | SO2≤50mg/Nm³, NOx≤100mg/Nm³, 粉尘排放≤30mg/Nm³ |
The daily output of 600 tons of double chamber lime kiln has the following advantages:
Efficient and energy-saving: Adopting the principle of parallel flow thermal storage and calcination, fully utilizing thermal energy, reducing heat consumption, and improving energy utilization efficiency.
Environmental protection and emission reduction: The smoke treatment device effectively reduces the concentration of harmful substances in the smoke, protecting the environment.
Stable and reliable: The dual chamber structure ensures the continuity and stability of lime production, improving production efficiency.
High degree of automation: adopting advanced human-machine interface control system
