lime calcining production line

The usage of lime is very wide, common in the field of building, metallurgy, chemical industry, light industry,environmental protection, medicament, agriculture, especially in the industries of steel making, iron making, sintering, copper and aluminum smelting, taking lime as slagging constituent, fibrinolytic agent or sintered material, which play avery important role.

HANDA heavy industries has more than 10 years of experience in the lime burning,we provide customers with the rotary kiln calcination process and shaft kiln lime calcination process to meet the demand of customer for different processing purposes lime. The shaft kiln lime calcination process is mainly used for small and medium volume production, low investment costs, simple operation and maintenance.

After decades of work performance, it is proved that our company's technology and equipment for lime production is the best choice in lime production and metallurgical enterprises, but also suitable for light calcium, aluminum, new building materials, calcium carbide, power plant dust desulfurization, soda ash, paper ideal for lime and other deep-processing industry!

Rotary Kiln Lime calcination Customer Stories

Shaft Kiln Lime calcination Customer Stories

Rotary Kiln Lime Calcination Process:

 

150-1000t/d active lime production line developed and designed by our company adopts “Preheater- kiln-cooler Process”, has better flexibility of raw materials and fuel, with high activity of produced reactive lime, providing excellent raw materials for steel and alumina industry.

Features of Our lime calcining System:

The complete system of active lime rotary kiln technology developed by our company is characterized by:

★ Advanced structure, low pressure drop vertical preheater can effectively improve the preheating effect, limestone after

preheated,the decomposition rate is of 20 to 25%, and can take advantage of 10 ~ 50mm of fine grade limestone;

★ reliable modular scales seal of kiln ends, so that air leakage coefficient is less than 10%, the use of composite

refractory lining to reduce radiative heat loss;

★ filling-type, round or square vertical cooler can be partition ventilation, making the limestone temperature discharged from the cooler: 80 ℃ + ambient temperature, easy to transport, store, and can make the secondary air into the kiln is preheated to above 700 ℃, reduce moving parts and special materials.

Fuel

Both of gas fuel and solid fuel can be used for preheater–rotary kiln–cooler process, depending on conditions of local resources. Coal powder, BF gas, natural gas, or heavy oil can be used as roasting fuel. 

Lime calcining production line technical parameter

Capacity(t/d) 150 200 250 300 350 400 500 600 750 800 1000
Product Reactive lime  calcined dolomite Reactive lime calcined dolomite Reactive lime calcined dolomite Reactive lime calcined dolomite             Reactive lime
Preheater Round
vertical
Round
vertical
Round
vertical
Round
vertical
            Polygons
Vertical
Rotary
kiln
Model
(m)
Φ2.5×40 Φ2.8×42 Φ3×46 Φ3.2×50             Φ4.8×68
effective volume
(m3)
142 190 235 292             1005
burning
temperature
1350/1250 1350/1250 1350/1250 1350/1250             1350
Cooler Round
vertical
Round
vertical
Round
vertical
Round
vertical
            Square
Vertical
Fuel Gas

coal powder
Gas

coal powder
Gas

coal powder
Gas

coal powder
            Gas

coal powder
Heat rate
(KJ/KgCaO)
5300/5000 5300/5000 5300/5000 5300/5000             4810

Major physicochemical indexes of reactive lime

 

The above condition of raw materials is assumed and designed according to the convention. The physicochemical indexes and technological parameters will be fixed in accordance with experimental report after the confirmation of raw material condition.

Shaft Kiln Lime Calcination Process:

JHZL type of intelligent and efficient environmental protection lime kiln produced by our company, it is very popular to domestic and foreign customers because of its significant energy saving, environmental standards, high intelligence, high product quality, low construction cost, short build period.

Some important technical index of JHZI type of fully automated and environment protection: The activity of lime ml:>320, including lime Cao%:>93, birth burn rate%:<5-7, CO2 concentration> 40%, utilization factor> 0.85 (up 100%), environmental indicators: 30mg / Nm3 (lower than the national environmental mandatory targets 50mg / Nm3).

The available fuel of JHZL shaft kiln lime: coal, natural gas, blast furnace gas (calorific value ≥750 kcal / m3), mixed fuel converter gas, coke oven gas, mixed gas, coal, coal and gas.

After decades of performance engineering proved, JHZL type of metallurgical is the best choice of furnace lime and lime manufacturing enterprises, but also is a furnace which suit for light calcium, aluminum, new building materials, calcium carbide, power plant dust desulfurization, soda ash, limestone and paper processing industry!

The Main Equipment of Shaft Kiln Lime:

Lime kiln supporting automation systems, intelligent master controller, intelligent detection level meter, rotary distributor, disc ash machine, both ends of the valve seal, guidelines hood, electronic weighing batching system, intelligent voice alarm flash, Roots fan, flue gas recirculation blower, air compressor, dust collector, centrifugal fan, multi-bucket elevator, shaker hanging, hanging feeder.

The Major Features of JHZL Type Shaft Kiln Lime:

1, the unique furnace design: energy saving, environmental protection, intelligent.

2, dust removal system, smoke and dust match ingenious, smoke emissions standards.

3, process layout is more compact and reasonable

4. The scientific principles of process, the most effective use of waste heat.

5, Establish the raw material-based science guiding ideology.

6, raw material and fuel weighed and mixed design novelty, easy to adjust.

7, peculiar fabric device structure, extremely mixing the cloth in kiln.

8, the keeping wind and uniform ash discharge, maintain good furnace conditions.

9, control means advanced in furnace conditions, detuning only 3-4 hours.

10, high levels of intelligent production, normal production by single-person’s operation.

Technological Parameters of JHZL Type Shaft Kiln Lime

Output(t/d) Effective volume(m3) Effective height(m) Effective section diameter (m) Limestone flour(mm) Product heat loss(KJ/kg) CaO(%) activity degree (ml) Bore burn rate Coal Consumption (Kg. Coal / t ash) Power consumption
Kwh / t ash
Dust emission concentration
mg / m³

50

70

18

φ2.5

40~80

<4600

>90

>300

<8%

130

<25

<30

100

120

19.5

φ2.5

40~80

<4600

>90

>300

<8%

130

<25

<30

120

141

20

φ3.0

40~80

<4600

>90

>300

<8%

130

<25

<30

150

200

21

φ3.5

40~80

<4500

>90

>300

<8%

130

<25

<30

200

250

24

φ4.0

40~80

<4500

>90

>300

<8%

130

<25

<30

300

397

25

φ4.5

40~80

<4400

>90

>300

<8%

130

<25

<30

Our Service:

We are capable of offering a complete set of lime production line from input of raw material to output of finished products according to customer’s limestone and requirements, together with engineering design of main and auxiliary facilities, equipment manufacture, civil construction, installation and testing, personal training, and project generalcontract.


Contact For Services

Neighborthood Industrial Road, Zhengzhou City, Henan, China

Tel: +86-0371-65825868

Mob: +86-13663817586

Email: info@han-da.com

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