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We operate one open circuit two chambers ball mill of size 4m dia X long for Cement grinding. Capacity:100tpd drive motor: 2x1500 kW (twin drive) Power drawn: 2500 kW (more data on grinding media). gt;We are maintaining a blaines of 2700 to 2800.
Cement mill Cement silos / Packaging Fig. 1. Cemen t plan t. van Breusegem et al. (1994, 1996a,b) and de Haas et al. (1995) dev elop ed an LQG con troller for the cemen t mill circuit. This con troller w as based on a rst order 2 2 transfer function mo del iden ti ed from step resp onse exp erimen ts. Magni and W ertz (1997), Magni et al. (1999),
24/06/2015#0183;#32;FL has designed a series of online training for the cement industry, providing you with easy and instant access to our specialised technical training.
The opencircuit grinding system of the ball mill is shown as follows: materials (including clinker, gypsum, mixed materials, etc.) mixed according to a certain proportion will be directly stored in the steel silo as finished cement products after being ground by the ball mill. The opencircuit grinding system has the characteristics of simple production process, less equipment, simple maintenance, small
18/07/2016#0183;#32;Closed Circuit Ball Mill System. Clinker, Gypsum and other desired additives are fed to the ball mill in specific proportions based on the quality requirement. Feed material is ground in the ball mill, discharged and fed to a classifier with the help of a bucket elevator for classification of the ground cement into two streams coarse and fines.
31/07/2014#0183;#32;Wm = Wi ( 80P 10 80F 10 ) (1) where: Wm is mill specific motor output power (kWh/t), Wi is the Bond ball mill work index (kWh/t), P80 is sieve size passing 80% of the mill product (#181;m), F80 is sieve size passing 80% of the mill feed (#181;m), The efficiency factors (Rowland, 1975) modify equation 1 so that it caters for circuit conditions which are different from that Bond used
Cement manufacturing brief description of a cement mill. Cement clinker is usually ground using a ball mill. This is essentially a large rotating drum containing grinding media normally steel balls. As the drum rotates, the motion of the balls crushes the clinker. The drum
Cement Mill Grinding Media Wear Rate Calculation. 202068wear rate value on cement mill grinding media per ton cement Vertical roller mill is a kind of grinding machine for cement raw material cement clinker slag and coal slag Lower steel wear rates per ton of product 2 holding the mill diameter constant the greater mill length provides a This type of feed allows less space to be taken up and use
Both the chambers of the cement mill were charged with 80% of the designed charge, which works out to 86 t in Ist chamber and 172 t in the IInd chamber. The mill is utilised for production of OPC 33 grade, OPC 53 grade and PPC. The blaines for the cements of different grades are being maintained as given below:
In 1904, Krupp produced a selfcontained cement mill using a ball mill and their version of the Askham separator in closed circuit, but I think this was never used in Britain. However, from the mid 1890s, ball mills were used in combination with tube mills (see below) and this setup became the normal cement milling installation until 1920.
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