球磨机按照排矿方式不同而分为格子型球磨机和溢流型球磨机，是目前选矿厂采用最普通的磨矿机。溢流型球磨机主要由筒体、端盖、主轴承、中空轴颈、传动齿轮和给矿器等部分组成。     

    

        性能特点     

    

        溢流型球磨机的排矿方式是靠排料端中空轴径稍大于给料端中空轴径，造成磨矿机内矿浆面向排料端有一定倾斜度。当矿浆面高度高于排料口内径**母线时，矿浆便溢流排出磨机。这是非强迫的高料位排矿，磨矿充分，磨矿效果好。一般适用于细磨或两段磨矿中第二段磨矿。     

    

        工作原理     

    

        设备主要部件是一个直径较小而长度较大的筒体，由滚动轴承支承，通过传动机械使其缓慢转动，物料从筒体给料端给入，在筒体内由于钢球及矿石本身的抛落冲击和自磨，物料得以粉碎。由于不断给入物料，其压力促使筒内物料由给料端向排料端移动，矿浆高出排矿端中空轴的下边缘而自流溢出。中空轴带有反螺旋叶片，可将溢流的钢球及粗矿块返回磨机内。     

    

        技术参数     

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        

规格型号	筒体转速 (r/min)	装球量 (t)	进料粒度 (mm)	出料粒度 (mm)	产量	电机功率 (kw)	重量 (t)
					(t/h)
Ф900×1800	36～38	1.5	≤20	0.075-0.89	0.65-2	18.5	4.6
Ф900×3000	36	2.7	≤20	0.075-0.89	1.1-3.5	22	5.6
Ф1200×2400	36	3	≤25	0.075-0.6	1.5-4.8	30	12
Ф1200×3000	36	3.5	≤25	0.074-0.4	1.6-5	37	12.8
Ф1200×4500	32.4	5	≤25	0.074-0.4	1.6-5.8	55	13.8
Ф1500×3000	29.7	7.5	≤25	0.074-0.4	2-5	75	15.6
Ф1500×4500	27	11	≤25	0.074-0.4	3-6	110	21
Ф1500×5700	28	12	≤25	0.074-0.4	3.5-6	130	24.7
Ф1830×3000	25.4	11	≤25	0.074-0.4	4-10	130	28
Ф1830×4500	25.4	15	≤25	0.074-0.4	4.5-12	155	32
Ф1830×6400	24.1	21	≤25	0.074-0.4	6.5-15	210	34
Ф1830×7000	24.1	23	≤25	0.074-0.4	7.5-17	245	36
Ф2100×3000	23.7	15	≤25	0.074-0.4	6.5-36	155	34
Ф2100×4500	23.7	24	≤25	0.074-0.4	8-43	245	42
Ф2100×7000	23.7	26	≤25	0.074-0.4	8-48	280	50
Ф2200×4500	21.5	27	≤25	0.074-0.4	9-45	280	48.5
Ф2200×6500	21.7	35	≤25	0.074-0.4	14-26	380	52.8
Ф2200×7000	21.7	35	≤25	0.074-0.4	15-28	380	54
Ф2200×7500	21.7	35	≤25	0.074-0.4	15-30	380	56
Ф2400×3000	21	23	≤25	0.074-0.4	7-50	245	54
Ф2400×4500	21	30	≤25	0.074-0.4	8.5-60	320	65
Ф2700×4000	20.7	40	≤25	0.074-0.4	12-80	400	94
Ф2700×4500	20.7	48	≤25	0.074-0.4	12-90	430	102
Ф3200×4500	18	65	≤25	0.074-0.4	按工艺条件定	800	137

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