granite crusher: ball mill manufacturers

2016年5月19日星期四

The advanced ball mill manufacturers

With the large number of small coal mines, small cement enterprises were closed, a new large-scale concentrator, after another large coal preparation plant and large-scale cement plant construction, mining equipment which put forward higher requirements, the urgent need to handle large capacity, efficiency separators , reliable operation of energy saving energy saving ball mill. As users increase the demand for products, new problems have emerged, the facility often blocking material phenomenon, through the analysis by the inadequacy of the screening area, the main ball mill pulverized material is limestone, and before entering the mill there are in addition to iron device to ensure the purity of the material entering the mill, so to block the gap, the product has improved after the closure, but still can not meet the size requirements of the user.
In addition, the energy saving ball mill drive transmission has three ways: First, the asynchronous motor gear reducer drive, this approach is suitable for large and medium-sized ball mill using asynchronous motor drive. Secondly, asynchronous electric car V-belt drives are generally small ball mill using this transmission mode. Another is the synchronous motor drive, the large ball mill using low-speed synchronous motor direct drive ball mill pinion, pinion ball mill and then drive the ring gear to rotate. The advantage is the high transmission efficiency, small footprint, easy maintenance, and improve the power factor, but the high price of the synchronous motor, and a DC power supply required.

Ball mill speed

Mining coal enrichment plants

2016年5月15日星期日

Ceramic ball mill manufacturers

Ceramic ball as a typical sports media milling equipment, since 1893 manufacturing applications, the device is already in the material of metal ore and non-metallic ore concentrator, metallurgy, building materials, chemical industry and power sector and other basic industry sectors pulverization It has been widely promoted and applied. Today, with the continuous development of ceramic industry, and its future development is broad. Day we talk about the advantages and disadvantages of its narrow sweat glands in the development process.

1, the advantages
First, a ceramic ball on adaptability of materials; secondly, to meet the requirements of modern large-scale industrial production; crushing ratio, up to 300 or more, and easy to adjust grinding fineness of the product; the operation can be adapted to different situations, both dry operation can also be wet operation, the device is also able to dry and wet merge together at the same time in the course of the work, in addition, the structure is simple, rugged, reliable operation, easy maintenance and management, long-term stable operation; equipment the member has a good seal, it can achieve negative pressure operation, in the production of the project, can effectively prevent the dust flying.

2, disadvantages
It is undeniable that ball itself also has a number of shortcomings and deficiencies, which is mainly reflected in the low efficiency of the device in the hard material grinding operation for a density of 2.2g / cm3-3.2cm3 of electricity accounts for the whole plant with two thirds of the electricity, and the effective utilization of energy for grinding is only about 2% to 7%, and most of the rest is converted into heat energy consumed; in addition bulky body, even up to the total weight of the large ball mill hundreds of tons, output is not only applicable to small-scale production.