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Wind-swept coal mill/ Roller disc coal mill

0421-3399078 0421-3398828

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Classification: Grinding equipment

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Product introduction

Product Introduction

Characteristics of wind-swept coal mill

1. The grinding body is short and thick, and the length-diameter ratio is generally less than 2.

2. The hollow shaft diameter of inlet and outlet material is large, the ventilation area of the compartment board between drying warehouse and grinding warehouse is large, and there is no grate board at the end of grinding, so the ventilation resistance is small.

3. Its heat waste gas consumption can reach 2.6-3.9kg /kg materials, can dry the moisture content of less than 8% of the raw materials, if another hot air furnace supply high temperature hot air, can dry the raw materials containing 12% of the moisture, such as pre-crushing dryer can dry 15% of the moisture. The working principle of the wind-swept coal mill is to lift the powder by air and separate the powder with a coarse powder separator, so the circulating load and powder separation efficiency are low, which affects the grinding efficiency. At the same time, when grinding the material with high moisture content, the wind speed inside the grinding is high, which increases the chance that the steel ball can't grind the material, and also affects the grinding efficiency. Therefore, the mill system has a lower output per unit theoretical power and a higher energy consumption of about 10%-12% than the lifting cycle mill system. When the mill system is used to dry the material with large moisture content, a pre-drying pipeline can also be added outside the mill. The material first enters the pre-drying pipeline for preliminary drying and then enters the mill to dry the powder and grind. At the same time, the feeding size should not be more than 15mm, in order to improve drying and grinding efficiency.

Technical Parameter:

Product name	Specification	Design capacity (t/h)	Main technical performance


Ball type coal mill	φ1.7×2.5m	3-5	Feeding size≤25mm, Feeding moisture<12% Discharging moisture<1.5%， Temperature of feeding gas≤350℃ Temperature of discharging gas＜60-80℃， Max.≤120℃，Cylinder speed 24.5e/min
Wind-swept coal mill	φ2.2×4.4m	8-9	Feeding size≤25mm,Fineness 88μm， Residue on seive＜10%， Temperature of feeding gas ＜300℃， Temperature of discharging gas＜60-80℃， Feeding moisture＜8%， Discharging gas moisture＜1.5%， Cylinder speed 22.4r/min Ball load 20t
Wind-swept coal mill	φ2.4×4.75m	14	Feeding size≤25mm, Fineness 88μm， Residue on seive＜10%， Temperature of feeding gas ＜300℃， Temperature of discharging gas＜60-80℃， Feeding moisture＜8%， Discharging gas moisture＜1.5%， Cylinder speed 20.4r/min
Wind-swept coal mill	φ2.4×8m	12-13	Feeding size≤20mm, Fineness 88μm， Residue on seive＜10%， Temperature of feeding gas＜300℃， Temperature of discharging gas＜60-80℃， Feeding moisture＜8%， Discharging gas moisture＜1.5%， Cylinder speed 21.4r/min Ball load 30t
Wind-swept coal mill	φ2.6×5.25+ 2.25m	9-10	Feeding size≤25mm， Raw coal moisture≤10% Discharging fineness 88um， Residue on seive 1-3%
Wind-swept coal mill	φ2.8×5+3m （Tianjin）	16-17	Medium grindability Raw coal moisture 10%， Fineness 80μm，Residue on seive：10-12
Wind-swept coal mill	φ3×9m	18-22	Feeding size≤25mm,Feeding raw coal moisture≤10%、 Fineness 88μm、Hole residue on seive below 10-12%、 Cylinder speed 18.3 r/min Ball load 43t Medium hardness
Wind-swept coal mill	φ3.2×9m	18-22	Feeding size≤25mm, Feeding raw coal moisture≤10%、 Fineness 88μm、Hole residue on seive below 10-12%、 Cylinder speed 18.25 r/min Ball load 53t Medium hardness
Wind-swept coal mill	φ3.4×9m	30	Feeding size≤20mm, Feeding raw coal moisture≤10%、 Fineness 88μm、Hole residue on seive below 6-8%、 Cylinder speed 17.61 r/min Ball load 58t Medium hardness
Wind-swept coal mill	φ3.6×9m	30-32	Feeding size≤20mm, Feeding raw coal moisture≤12%、 Fineness 88μm、Hole residue on seive below 6-8%、 Cylinder speed 17.61r/min Ball load 60t Medium hardness
Wind-swept coal mill	φ3.8×9.5m	36-40	Feeding size≤20mm, Feeding raw coal moisture≤10%、 Fineness 88μm、Hole residue on seive below 3-5%、 Cylinder speed 16.7 r/min Ball load 88t Medium hardness
Roller disc coal mill	φ1600mm,	33.5	Air volume 10.7Kg/S, Working diameter of grinding disc 1600mm, Roller diameter 1240mm, Roller width 380mm， Grinding disc speed 28.7r/min, Sealed air volume 0.7Kg/S
Roller disc coal mill	φ1700mm	39	Air volume 12.46Kg/S, Working diameter of grinding disc 1700mm, Roller diameter 1320mm, Roller width 410mm， Grinding disc speed 27.8r/min, Sealed air volume 0.75Kg/S
Roller disc coal mill	φ1800mm	45	Air volume 14.38Kg/S, Working diameter of grinding disc 1800mm, Roller diameter 1400mm, Roller width 430mm， Grinding disc speed 27r/min, Sealed air volume 0.8Kg/S
Roller disc coal mill	φ1900mm	52.6	Air volume 16.75Kg/S, Working diameter of grinding disc 1900mm, Roller diameter 1480mm, Roller width 450mm， Grinding disc speed 26.4r/min, Sealed air volume 0.85Kg/S
Roller disc coal mill	φ2000mm	58.5	Air volume 18.55Kg/S, Working diameter of grinding disc 2000mm, Roller diameter 1560mm, Roller width 480mm， Grinding disc speed 25.6r/min, Sealed air volume 1.42Kg/S
Roller disc coal mill	φ2120mm	67.7	Air volume 21.65Kg/S Working diameter of grinding disc 2120mm, Roller diameter 1650mm, Roller width 510mm， Grinding disc speed 24.8r/min, Sealed air volume 0.95Kg/S
Roller disc coal mill	φ2250mm	78.7	Air volume 24.74Kg/S, Working diameter of grinding disc 2250mm, Roller diameter 1750mm, Roller width 540mm， Grinding disc speed 24.8r/min, Sealed air volume 1Kg/S

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18242194821 18242194821

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Chaoyang Jiantou Heavy Machinery Co., Ltd

Address: Yulong Avenue, Shuangta District, Chaoyang City, Liaoning Province, China

Tel: 0421-3399078 0421-3398828 18242194821

Fax: 0421-3398828

Mail: wangdan0832@163.com Postal Code: 122000

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