Oct 28, 2021· The discharge grate plate of the ball mill directly affects the grinding effect of the Ball mill, but the current discharge grate plate is often seriously blocked, which leads to problems such as ...
The utility model discloses a discharge device for a grate ball mill. The discharge device for the grate ball mill comprises an end cap, a discharge guide rib, a grate plate, a fixing bolt and a press block. The grate plate, the end cap and the discharge guide rib are all directly fixed through the fixing bolt. The discharge device for a grate ball mill overcomes the defects of …
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Aug 19, 2021· 2700x3600mm grate ball mill 1.Drum 2. Flange 4. Screw 5. Manhole 7. Quill shaft end cover 8. Combination drum-scoop feeder 9. End cover liner 10. Bearing inner sleeve …
For overflow ball mills, the charge should not exceed 45% of the mill volume . For grate discharge mills, the charge should occupy about 50% of the mill volume . Bond developed a relationship that can be used to determine the percent charge by volume as a function of the vertical height above the charge, He, and the radius of the mill…
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The utility model discloses a novel wet -type grate discharge ball mill discharge end welt, including outer lane welt and inner circle welt, the inner circle welt lie in the center of outer lane welt, and the outside diameter of inner circle welt is identical with the well core diameter of outer lane welt, every block of outer lane gridron welt include outer lane gridron and gusset, be ...
Dec 26, 2012· A grate assembly at the discharge en d of the mill permits retention of a higher ball charge (up to 50%) than is possible in an overflow mill which has a practical limit of around 40%. Behind the grates is a lifting compartment which picks up the ground material as it passes through the grates and transports it out of the mill.
We recently converted a grate discharge type ball mill (size 5.7X8.6m) to an Overflow type. Before conversion, the ball level was 26%, and we were able to obtain a grind of 90%+ passing 75mic at a throughput of 350t/h. After conversion it's a nightmare to obtain 90%+ passing 75mic at the same throughput. No change to the cyclones done.
Nov 21, 2014· (1) Rao Latchireddi, (1) Raj K Rajamani and (2)Sanjeeva Latchireddi. (1) University of Utah, (2) EE-Mill Solution LLC, USA.
Grate Ball Mill; Overflow Type Ball Mill; Dry Ball Mill; Wet Ball Mill; Porcelain Lined Ball Mill. 2060 Rod Mill Rsvd Grate Discharge Ball Mill-Grate Discharge Ball Mill … Choose Quality Grate Discharge Ball Mill Manufacturers, Suppliers, Exporters at Alibaba. Alibaba. …
MOQ: 2 tons. Material Grade: AS2074 L2B, L2C, L2A. Production Process: Sand Process + Heat treatment. Melting Process: Induction Melting. Our company is a Chinese specialized manufacturer of alloy steel castings. We can produce alloy steel castings as per the drawings of customers. Grate Discharge Liner for Ball Mill Detailed Product Description.
Nov 05, 2021· Ball mills are usually either of the grate (diaphragm) or overflow type. Ball Mill Components. Ball mills consist of the following components: Inlet – crushed ore is fed to the ball mill through the inlet. A scoop ensures the feed to the mill is constant. Discharge – reduced feed exits the mill through the discharge. Ball Mill Components
Sep 01, 1986· A model for the effect of flowrate and viscosity of slurry on the hold-up of slurry in a grate-discharge grinding mill has been developed. Given detailed specifications of the grate design (such as the area in the grate within which the holes are situated, the number of holes per m 2 and the hole size) and the flowrate and viscosity of the slurry flowing through the mill, the …
Jan 01, 2015· The overflow mills use much simpler trunnion bearings to support the mill, whereas grate-only discharge mill would require a tire gear around the shell which is expensive and involves complex manufacturing process as the grate has to withstand the pressure exerted by the steel ball charge and allow slurry to discharge effectively."
Grate Discharge Ball Mill 28all Model 29. grates for pella ball mill,ball mill grate cleaning cone ball millhenan kefan mining, grates for pella ball mill gmecrusher grate discharge ball mills grates can be added to the. cedarapids hammermill grates pella ball mill rods;, armorhog provides custom made hammer mill screens and grates for all brands,all configurations and …
Grate ball mill is mainly composed of barrel part, feeding part, discharging part, bearing, transmission system and lubrication system. After the grate type ball mill starts, the material is fed into the barrel through the feed end, and the …
TITLE: The Use of Mathematical Models of Grinding and Classification to Optimize Grinding Circuits at the Mt. Lyell Copper Concentrator, Tasmania. ... ball mill grate discharge – Mineral Processing Plant. to 1 or greater, we refer to the mill as a Tube Mill. The two most popular types of ball mills are…
Grate Discharge Ball Mills have shown 25% to 45% more tonnage ground and a substantial reduction in power consumed per ton of material compared size for size with overflow mills. To illustrate the characteristics of various type mills we have shown the types of discharge for rod mills and ball mills.
Wet Grate Discharge Ball Mill; Dry Grate Discharge Ball Mill; Wet Grinding Rod Mill; Model: Mill diameter: Mill length: Mill effective volume: ... and 6 overflow discharge ball mills of Ø7.9×13.6m (2×9000kW gear drive) for Sino Iron Project in Australia. For Zijin Mining's Duobaoshan Copper Mine project in Heilongjiang, we have manufactured ...
To determine the power that a dry grinding needs, full grate discharge mill Equation 1 is multiplied by the factor of 1.08. A multi-compartment ball mill consists of two or more grate discharge ball mills in series. The same equation is used to calculate the power that each ball mill compartment should draw. The total power is
33 · The grate discharge ball mill is also called grate ball mill. It is often used in the first ...
Aug 13, 2015· Tramp metal in the ore such as scaling bars and rock bolts cut the rubber and can become lodged in the grate openings. This puts an excessive …
models of SAG mill discharge and feed streams and mill rock and ball charge levels, detailed earlier in the series, is summarised. The models are then tested on plant data for validation and analysis. Model characteristics are explored to highlight model sensitivity and relative uncertainty. Inquire Now; How a Grate Discharge Ball Mill Works
Grate Discharge Ball Mills Grates can be added to the discharge end of the ball mill to facilitate a steeper pulp gradient which helps to prevent over-grinding. 2040 Ball Mills Ball Mills Brochure No.2040 06/02 24 ft. x 30 ft.- 14,000 HP Ball Mills . …. The two most popular types of ball mills are….
Grate discharge Dry Grate discharge Wet Overflow discharge Wet Figure 8.5 Effect of mill filling on power draft for ball mills. The data is taken from Rexnord Process Machinery Reference Manual, Rexnord Process Machinery Division, Milwaukee, 1976 The effect of varying mill speed on the power drawn by the mill is shown graphically in Figure 8.4
Grate Discharge Ball Mill (All model) on sale,USD 100- MinOrder:1 Sets - offered by professional Grate Discharge Ball Mill, Grate Discharge Ball Mill, grate mil. live chat. Ball mill. The ball mill is a key piece of equipment for grinding crushed, There are two kinds of ball mill, grate type and overfall type due to different ways of discharging.
Discrete element method modelling of pulp lifter performance. P. Chu. Engineering. 2011. Pulp lifter assembly is one of the important components at the discharge ends of grate-discharge grinding mills. It discharges grinded materials out through the discharge trunnion like a centrifugal…. View 2 excerpts, cites methods and background.
After the mill there would be a screen with 1mm opening, fines to spirals, coarse back to the mill. I used rod mills for such a coarse grind, but the handling of the rods is not as easy as if you use balls. So the question came up what a grate discharge ball mill would do here. I …