Mini Small Used Bauxite Gypsum Gas Kiln Machine, Activated Carbon Lime Rotary Kiln Price For Sale, High Quality Rotary Kiln
1. Introduction of Energy Saving Limestone Calcination Process Production Line
Lime rotary kiln are used for produce active lime and light burned dolomite used in steel roasting plants and ferroalloy Factory.
Lime kiln main subsidiary equipment are feeding mechanism, distributing device, wind supply device, burning device, ash discharging device, etc. Relatively speaking, co-firing lime kiln material distributing is very critical because it feed the fuel and limestones into kiln simultaneously, and must achieve burden are reasonable distribution in the kiln, eliminate the furnace wall effect, balanced resistance in furnace, to achieve whole furnace section of "lit" uniform. Therefore, the form and effect of distributor has a great influence on the productivity of lime kiln.
2. Advantages of Energy Saving Limestone Calcination Process Production Line
1. Advanced structure, low pressure loss of vertical preheater can effectively improve the preheating effect, after preheated limestone enter into kiln, the decomposition rate can achieve up to 20-25%, and can use 10-15mm fine grade limestone directly..
2. Rotary kiln each ends are modular sealing. So that air leakage coefficient less than 10%, using composite refractory to reduce radiant heat loss.
3. Filling, Can partition ventilation round or square upright cooler, make sure the lime outlet from cooler temperature 800C+environment, easy to transport, store, and the secondary air into the furnace preheated to 7000C or more, reducing the moving parts and special materials.
3. Structure of Energy Saving Limestone Calcination Process Production Line
1. Advanced calcination mechanism, energy-saving calcinations method.
The kiln body of rotary kiln uses fully sealed calcining mechanism, which is advanced and scientific. The kiln refractory insulation layer adopts multi-layer refractory with good lightness. Meanwhile, the upper part and lower part of the kiln use heat exchange method, which reduces the heat loss to the maximum limit. High heat efficiency.
2. Higher production efficiency, better finished product quality.
Materials move and roll more smoothly and stably inside the kiln, thus improving the pre-heating effect and production efficiency. At the same time, the material layer is even and stable. Lower less and over-burning rate, higher finished product quality, better market feedback effect.
3. Excellent parts, environmental operation.
The rotary kiln's work motivation uses frequency converter control and operation, besides, it adopts fully negative pressure production, smooth airflow, stable operation, safety and reliable, which avoids no-load operation phenomenon. In addition, our company's rotary kiln introduces pulse bag filter dust removing, thus decreasing the dust, and improving the operating environment. More environmentally protective operation.
5. Principle of Energy Saving Limestone Calcination Process Production Line
Qualified limestone is stored in the silo, the upper and lower level gages control feeding amount, and then through the tremie pipe, limestone is evenly distributed into every chamber of the preheater.
Limestone in the preheater is heated by 1150 degrees Celsius to 900 degrees Celsius, about 30% is decomposed, hydraulic pusher push them into the rotary kiln, the limestone in the rotary kiln is roasting and decomposed into CaO and CO2.
After decomposition, generated lime enters into the cooler, in the cooler blowing cool air cool the lime to below 100 degrees Celsius and is discharged. 600 degrees Celsius hot air through heat exchange enters into the kiln and with gas fuel combination. Exhaust gas is added cool air blast and by the draught fan, enters into the bag filter, and then discharged through the exhaust fan into the chimney. By vibrating feeder, chain bucket conveyor, bucket elevator, belt conveyor, the lime discharged from the cooler enters into the lime reservoir. According to the user's needs to determine whether proceed screening processes.
In the lime roasting system, in accordance with output, the preheater is divided into several preheaters, every preheater is matched with a set of hydraulic pusher device, and matched with automated control systems, which can send related datas into central control room's PLC control platform to realize centralized control. This system has high degree of automation and can achieve single point controlled to make the production process more convenient.
5. Parameters of Energy Saving Limestone Calcination Process Production Line
Capacity
(t/h) |
Product |
Rotary kiln |
Preheater |
Burning temperature |
Cooler |
Heat consumption
(KJ/Kg Cao) |
| Spec. (m) |
Effective
volume(m³) |
| 150 |
active
lime
light
calcine
dolomite |
φ 2.5*40 |
142 |
Circular
vertical
preheater |
1350/1250 |
Circular
vertical
cooler |
5300/5000 |
| 200 |
φ 2.8*42 |
190 |
| 250 |
φ 3*46 |
235 |
| 300 |
φ 3.2*50 |
292 |
| 350 |
active lime |
φ 3.5*54 |
390 |
1350 |
5225 |
| 400 |
φ 3.6*56 |
430 |
| 500 |
φ 3.8*58 |
505 |
Square
vertical
cooler |
5100 |
| 600 |
φ 4*60 |
575 |
| 750 |
φ 4.3*58 |
670 |
Shape
vertical
preheater |
4810 |
| 800 |
φ 4.3*64 |
738 |
| 1000 |
φ 4.8*68 |
1005 |
Zhengzhou HengXing Heavy Equipment Co.,Ltd
Zhengzhou Hengxing is a joint stock corporation integrating scientific research, manufacture, marketing and exporting with the main target at the large and medium sized series of heavy duty equipments for mining, ore selecting, wall materials, formed coal, metallurgy and ect. The company located at Zhengzhou National High-Tech Development Zone.
We are specialized in the research, development, and production of industrial crushing, powder grinding, mineral processing equipments and other related devices. These products include Stone Crushers, Jaw Crushers, Cone Crushers, Hammer Crushers, and Sand making Machines, Sand Washing machines, Rod Mills, Powder making Machines, Ore Dressing Machines, Briquette Machines and complete Cement Output Lines. Our products have been sold to areas of Southeast Asia, East Europe, South America, the Middle East and Africa etc, and more foreign markets will be promoted in future.
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