Mixed Fuel Calcination Equipment , 50TPD - 1000TPD Vertical Lime
Kiln
Vertical Lime Kiln Introduction:
Vertical lime kiln, just like its name, the shape is erect. It is
used for calcination limestone. Due to has low energy consumption,
less cover area, less investment, wide applicability fuel, and more
advantages, the vertical lime kiln is also widely used in
metallurgy, construction materials, calcium carbide, Nanometer
calcium carbonate, aerated concrete, sugaring, etc.
There are various processes for the active lime production, mainly
including: Advanced “Preheater-Rotary kiln-Vertical cooler" Energy-Saving
Process, Traditional “Long Rotary Lime Kiln” Process, Mixed Buring
Vertical Kiln Process, Gas-fired or Oil-fired Vertical Kiln Process. The vertical kiln was manufactured by ZK group with modern new
technology, which is an environment protection, save energy, higher
machanization and automaticity, quite modern lime kiln. The
selection of the active lime process is effected by many factors,
such as : the activity requirement, the fuel, the limestone sizes,
production capacity, environmental-protection requirement. We will
select the most workable and efficient and economical solution based
o the clients’ specific requirement and conditions.
Mixed Burning Vertical Lime Kiln Process:
The qualified raw materials and solid fuels are mixed uniformly
according to a certain proportion and then sent to the vertical
kiln through a single bucket elevator for calcination. After
calcination, the final lime products are discharged from the bottom
of the vertical kiln through a discharge device to the conveyor,
and the conveyor sends the finnal lime products to the storage
silo. The hot flue gas generated by calcination will firstly go
into the dust collecting system, and then the clean flue gas will
be emitted through chimney to the atmosphere.
Low Heat Value Gas Vertical Lime Kiln Process:
The qualified raw materials are sent to the vertical kiln through a
single bucket elevator. The calcination heat energy is supplied by
the low heat value gas burner distributed around the vertical kiln.
After calcination, the final lime products are discharged from the
bottom of the vertical kiln through the discharge device to the
conveyor, and the conveyor sends the final lime products to the
storage silo. The hot flue gas generated by the calcination coming
out from the top of vertical kiln, and will enter into
heat-exchanger and the dust collecting system, and then the clean
air is emitted to the atmosphere by chimney. The heat-exchanger
also will be used for heating the gas and the combustion air.
High Heat Value Vertical Lime Kiln Process:
The qualified raw materials are sent to the vertical kiln through a
single bucket elevator, and the calcining heat energy of lime is
provided by the high heat value gas or special oil burner
distributed around the vertical kiln. After calcination, the final
lime products are discharged from the bottom of the vertical kiln
through the discharging device to the conveyor, and then the final
lime products are sent to the storage silo by the conveyor. Some of
the hot flue gas generated by the calcination will enter into the
dust collecting system, and then the clean air will be emitted by
the chimney. The other part of the hot flue gas will enter into the
to improve the fuel diffusion speed and increase the uniformity of
limestone calcination.
Technical Parameter:
| Technical Parameters Of Vertical Klin (Mixed Fuel) |
| Capacity(t/d) | Effective Volume | Effective Height | Effective Section | Limestone Size | Heat Consumption | CaO | Activity |
| (m3) | (m) | Dia.(m) | (mm) | (kJ/kg) | (%) | (mL) |
| 100 | 98 | 20 | Ø2.5 | 30~60/40~80 | <4600 | >90 | >300 |
| 120 | 141 | 20 | Ø3.0 | 30~60/40~80 | <4600 | >90 | >300 |
| 150 | 202 | 21 | Ø3.5 | 30~60/40~80 | <4500 | >90 | >300 |
| 200 | 301 | 24 | Ø4.0 | 30~60/40~80 | <4500 | >90 | >300 |
| 300 | 397 | 25 | Ø4.5 | 30~60/40~80 | <4400 | >90 | >300 |
| 400 | 491 | 25 | Ø5.0 | 30~60/40~80 | <4200 | >90 | >300 |
| 500 | 735 | 26 | Ø6.0 | 30~60/40~80 | <4200 | >90 | >300 |
| Remarks: All above data are for reference only. |
| | | | | | | | |
| Technical Parameters Of Vertical Lime Kiln (Fuel: Gas) |
| Capacity(t/d) | Effective Volume | Effective Height | Effective Section | Limestone Size | Heat Consumption | CaO | Activity |
| (m3) | (m) | Dia. or L×W(m) | (mm) | (kJ/kg) | (%) | (mL) |
| 50 | 70 | 20 | Ø2.0 | 30~60/40~80 | <4600 | >90 | >300 |
| 70 | 80 | 20 | Ø2.5 | 30~60/40~80 | <4600 | >90 | >300 |
| 80 | 100 | 20 | Ø2.5 | 30~60/40~80 | <4500 | >90 | >300 |
| 100 | 120 | 20 | Ø2.7 | 30~60/40~80 | <4500 | >90 | >300 |
| 120 | 140 | 20 | Ø3.0 | 30~60/40~80 | <4400 | >90 | >300 |
| 130 | 150 | 21 | Ø3.0 | 30~60/40~80 | <4200 | >90 | >300 |
| 150 | 200 | 20 | 2.5×4.5 | 30~60/40~80 | <4200 | >90 | >300 |
| Remarks: Above data are for reference only, and suitable for
Vertical Kiln which use low heat fuel. Utilization coefficient of
Vertical Kiln which use high heat fuel is higher. |
