Lime Shaft Kiln Plant Background
Burning quicklime has a long history in my country. Up to now, our country’s metallurgical, chemical, and building materials industries use more and more ash, and the quality of ash is higher and higher. At present, ordinary shaft kilns with low construction cost are widely used in the production of ash in my country. There are many shortcomings in the production of ordinary shaft kilns, such as: the utilization factor of the kiln is lower than 50%, the energy consumption is high, and the coal consumption per ton of ash is more than 160kg, the environment is seriously polluted, with smoky smoke and dust rolling. Due to structural reasons, it is difficult to remove dust. The labor intensity of workers is high, such as feeding and ash removal by manual operations, which seriously damages the health of the operators. The quality of the produced lime is unstable, and the raw burning, over burning and nodulation are generally more than 30%.
AGICO Lime Shaft Kiln Plant
Our company mainly provides mechanized vertical lime kiln plant, which adopts modern technology, can make full use of cheap energy, especially can use the original polluting gas (such as converter gas, blast furnace gas, calcium carbide furnace tail gas, etc.) as the main energy, turning waste into treasure. This not only protects the environment, but also produces lime with good quality and low cost. For enterprises that use this new technology, the economic benefits will be significantly increased.
New Technology Lime Shaft Kiln Plant
1. Unique design ensures energy efficient operation
2. Original dust removal system, flue gas discharge up to standard
3. High level of automated production
4. Uniform size of raw materials and high product quality
5. Novel design of mixing system, automatic weighing device
6. Unique spraying equipment structure, uniform layout in the kiln
7. Reasonable ash discharge equipment, advanced furnace condition control method
8. Efficient utilization of waste heat and compact layout
It should be pointed out that this kiln type is especially suitable for the production of nano calcium carbonate. The reason is that the concentration of CO2 in the flue gas of the shaft kiln can reach more than 35%, and the recovery cost of CO2 is low. The mechanized vertical lime kiln is the most common type of kiln used in chemical production. Both feeding and ash unloading are mechanized. Each calcining zone has automatic temperature recording instruments.
Lime Shaft Kiln Plant Advantages
The mechanized vertical lime kiln plant has the following advantages:
1. High preheating and cooling effect and high thermal efficiency.
2. Take up small area.
3. Low equipment cost, less auxiliary equipment and less investment.
4. The lime moves slowly and there is less dust.
5. The shaft kiln is relatively low in fuel consumption due to its good sealing performance and large heat loss.
Lime Shaft Kiln Plant Main Standard Equipment
According to the process requirements of this kiln type, the main standard equipment used are as follows:
| Item | Function |
| 9-19 series high pressure fan | Combustion air and secondary air in the kiln |
| Circulating gas fan | Adjust the furnace condition |
| Air compressor | reverse blow for electronic scale, distributor and other equipment |
| Bag dust collector | Flue gas dust removal |
| Centrifugal wind fan | Auxiliary equipment of dust collector |
| Continuous bucket elevator | Finished ash loading warehouse |
| Suspended vibrating screen | Sieve raw materials and remove impurities |
| Suspended vibrating feeder | Used in the feeding place |
| Desulfurization tower | Flue gas desulfurization, denitrification |
| Spec | Specifications and technical parameters are determined according to the size of the kiln. |
