Oxidized Pellet Rotary Kiln

Introduction

China's oxidation pellet technology has developed rapidly. More than 10 oxidation pellet factories have been built to provide high-quality pellets for blast furnace ironmaking, which is the future development direction of the steel industry. The construction of a large-scale oxidation pellet plant covers a relatively small area, which can effectively reduce the investment amount of unit products, significantly reduce the energy consumption of unit products, and thus reduce product costs. Due to the high level of technology and equipment of oxidation pellets, it can greatly increase labor productivity and improve and protect the environment. Pelletizing equipment mainly includes: rotary dryer, disk feeder, disk pelletizer, chain grate heater, rotary kiln, ring cooler, lubricating mill, mixing machine, coal mill and other complete equipment.
 

Equipment composition

The rotary kiln for pellets in the iron and steel industry is mainly composed of rotary part, supporting part, transmission device, kiln head cover, kiln head & kiln tail seal, and combustion device. Kiln mouth guard plate and kiln tail material return spoon adopt block casting, easy to install, with high heat resistance, corrosion resistance and wear resistance. The cooling air is passed through the kiln head cold air jacket, which can evenly cool the kiln head barrel and the kiln mouth guard plate, making it more safe and reliable. The kiln head cover adopts a large volume method, and the kiln door structure is split to make the air flow more stable. The kiln head and kiln tail seals adopt radial friction labyrinth and fish scale double seal forms, with simple structure and easy maintenance. The combustion device adopts a swirling four-channel pulverized coal burner with an oil injection ignition device.
 

Technical

Product Name	Specification	Capacity(t/h)	Power(KW)
Rotary dryer	Φ1.8×14m	30-40	22
Rotary dryer	Φ2×14m	40-60	22
Rotary dryer	Φ2.2×12m	50-55	55
Rotary dryer	Φ2.2×16m	40-45	75
Rotary dryer	Φ2.4×18m	45-60	95
Rotary dryer	Φ3×20m	160	220
Rotary dryer	Φ3.6×24m	150	250
Rotary dryer	Φ4.2×25m	250	315
Disk pelletizer	Φ3.6m	180000-200000t/a	22
Disk pelletizer	Φ4.2m	280000-330000t/a	55
Disk pelletizer	Φ4.5m	350000-450000t/a	75
Disk pelletizer	Φ5.5m	40-60	110
Disk pelletizer	Φ6m	650000-700000t/a	110
Chain grate heater	1.6×24m	100000-200000t/a	15
Chain grate heater	2.4×24m	300000t/a	11
Chain grate heater	2.8×36m	400000-600000t/a	18.5
Chain grate heater	2.8×42m	400000-600000t/a	18.5
Rotary kiln	Φ2.2×18m	10-12	45
Rotary kiln	Φ2.5×20m	18-25	30
Rotary kiln	Φ2.8×22m	30-34	90
Rotary kiln	Φ3×28m	40	90
Rotary kiln	Φ3.5×30m	50	220
Rotary kiln	Φ4×30m	90	190
Rotary kiln	Φ4.7×35m	140-180	315
Rotary kiln	Φ5×35m	165-202	315
Rotary kiln	Φ6.1×40m	226-335	315
Oxidizing pellet ring cooler/td>	20m 2	40	7.5×2
Oxidizing pellet ring cooler/td>	30m 2	40-60	11×2
Oxidizing pellet ring cooler/td>	40m 2	90	15×2
Oxidizing pellet ring cooler/td>	50m 2	112	15×2
Oxidizing pellet ring cooler/td>	69m 2	130-160	11×2
Oxidizing pellet ring cooler/td>	121m 2	270-304	15×2
Oxidizing pellet ring cooler/td>	128m 2	280-315	18.5×2
Sintering pellet ring cooler	140m 2	302	11×2