Environmental Protection Vertical Lime Kiln
Advantages of vertical shaft lime kiln
The vertical shaft lime kiln is a lime kiln with an upright shape
for burning lime. The modern vertical lime kiln has the advantages
of environmental protection, energy saving and mechanization, and
high degree of automation.
1. energy saving
From the top to the bottom of the vertical lime kiln, the
pre-tropical zone, the calcination zone and the cooling zone are in
turn. The cooling air is blown into the lime shaft kiln from the
bottom of the cooling zone. After heat exchange, the product is
cooled, the cooling air is preheated, and the cooling air carrying
heat enters the calcining zone to participate in combustion,
thereby reducing energy consumption. In addition, the lime kiln
skin is built with four layers of refractory material, and the heat
preservation effect is good. The vertical lime kiln skin
temperature can be controlled at about 60 °C above the ambient
temperature, and the energy saving is remarkable.
2. long service life
The material does not directly collide with the working surface
refractory material, but relies on gravity settlement and the
working surface friction, which reduces the wear rate of the
refractory material. Under normal circumstances, the refractory
material can be used for 6 to 10 years, which increases the service
life of the equipment.
3. less floor space
Since the lime shaft kiln is arranged upright, the functional areas
are arranged compactly, which reduces the floor space.
4. Low investment cost
The vertical lime kiln steel structure has fewer machining parts,
lower processing costs, less difficult installation, and low
difficulty in refractory masonry, so the equipment investment and
construction cost is low.
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. |
Features:
1. using energy-saving way of calcination.
2. dust removal system makes flue gas and dust keep clever
collocation flue gas emissions meet standards;
3. scientific process the waste heat can be most effectively used.
4. distributing equipment has unique structure and uniform
distributing quantity.
5. uniform wind supplying maintains good furnace condition.
6. high automation level.
