W_io CALCULATION: Table 4
AUTOGENOUS GRINDING

DATE	GROSS HP-HR	CRUDE FEED	CROSO HPHR/LT	LTPH	HR	HILL HP	P80	X-500 MESH	HIO KAK/ST
B-1-75
B-2-75	70644	4738	14.9	254.7	18.60	3798	752	35.5	25.47
B-3-75	74853	5432	13.8	249.2	21.80	3434	701	33.5	22.72
B-4-75	78245	5457	14.3	252.9	21.70	3606	1116	23.0	29.68
B-5-75	93510	6076	15.4	259.7	23.40	3997	664	31.5	24.71
B-6-75	84436	5451	15.5	234.0	23.29	3625	1515	10.5	37.57
B-7-75	83164	4713	17.6	266.3	17.70	4700	818	35.5	31.45
B-8-75	99943	5711	17.5	275.9	20.70	4828	136	59.5	12.71
B-9-75	89918	5308	16.9	252.8	21.00	4282	1086	33.0	34.78
B-10-75	97432	5601	15.6	245.7	22.60	3835	1142	29.5	32.87
B-11-75	68834	4705	14.6	217.8	21.60	3186	961	16.0	28.25
B-12-75	94166	5975	15.0	250.0	23.90	3940	1121	30.0	32.87
B-13-75	72172	5350	13.5	253.9	23.89	3020	818	26.0	24.04
B-14-75
B-15-75	64655	4534	14.3	188.9	24.00	2694	775	21.5	24.14
B-16-75
B-17-75	73325	5182	14.1	231.3	22.40	3273	966	29.0	2740
B-18-75	94993	5651	16.8	242.5	23.30	4076	1049	23.3	3392
B-99-75	98380	6168	16.0	257.0	24.00	4099	940	30.0	30.47
B-20-75	62469	4007	15.6	217.8	18.40	3395	1305	27.0	35.09
B-21-75	90828	5229	17.4	218.8	23.90	3801	1656	17.5	44.06
B-22-75	80117	5233	15.3	252.8	20.70	3870	1440	18.0	36.19
B-23-75	79640	5414	14.7	230.4	23.50	3389	1440	14.0	34.73
B-24-75	66024	4867	13.7	215.4	22.60	2957	400	39.5	17.10
B-25-75	22710	1587	14.3	170.7	9.30	2443	1005	35.0	28.26
B-26-75
B-27-75	77409	5076	15.3	216.9	23.40	3300	1249	26.0	33.50
B-28-75	99097	5785	17.1	245.1	23.60	4199	774	29.0	29.68
B-29-75	67406	3789	17.8	221.6	17.10	3942	1195	30.5	38.31
B-30-75	99408	5465	18.2	227.7	24.00	4142	1370	30.0	41.94
B-31-75	89435	5733	15.6	238.9	24.00	3727	1356	14.5	35.79
WEIGHTED AVERACE	80149	5121	15.6	235.5	21.65	3698	1026	27.6	30.60

Table 4 is a copy a none month computer runoff sheet on which daily operating data and the work indices calculated from the operating data for an autogenous mill are tabulated. This is a typical from the operating data for an autogenous m ill are tabulated. This is a typical sheet showing what can be done. The feed size is generally not used in this calculation for primary autogenous and partial autogenous mills, in that the feed factor bocomed insignificant because of the large size of the feed.