US501433A - Crushing or grinding mill - Google Patents
US501433A US501433DA US501433A US 501433 A US501433 A US 501433A US 501433D A US501433D A US 501433DA US 501433 A US501433 A US 501433A Authority US United States Prior art keywords shaft wheels piston crushing cylinder Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
CA1138397A - Shell liner assembly for ore grinding mills ...
Abstract The disclosure is directed to an improved liner assembly for an ore grinding mill. The liner assembly is of the segmented type, comprising a first plurality of holder segments which are mounted directly to the shell of the mill, and a second plurality of wear segments which are mounted to the shell in overlying relation to the holder segments, which are thus virtually …
Ball mill - Starkey & Associates Grinding Design and ...
The present invention relates to a SAG mill, and especially to a SAG mill for the milling or grinding of samples of ore on a scale that is suitable for use in design of a commercial scale SAG mill for the grinding of ore. An embodiment of the SAG mill is illustrated in the drawings. FIG. 1 shows a ball mill, generally indicated by 10.
Mineral Processing Flowsheets
A Mineral Jigs installed in the grinding circuit in cyanide mills have proved very successful in increasing recovery. It is always advisable to recover your mineral values as soon and as coarse as possible. Net return of an operation may be increased by production of bullion at the mine instead of shipping ore, or by the treatment of concentrates.
SAG Mill | Autogenous and Semi-Autogenous Mills | FL
Semi-autogenous grinding uses a minimal ball charge in the range of 6-15% while autogenous grinding uses ore only. SAG and AG Mills operate by lifting ore/grinding media and dropping it on the operating bed of the mill charge. High impacts from lifting ore and media promote impact breakage which is the primary mechanism for size reduction in ...
US3773268A - patents.google
The ore grinding media which serves as the grinding media in mill 10 is indicated at 18 and is dispensed from a hopper 20 onto a moving conveyor belt 22 which delivers the ore grinding media to the input spout or the like 16 of the grinding mill l0, ore grinding media 18 becoming mixed with fine feed ore l2 inside the grinding mill.
Beneficiation of iron ore - United States Steel Corporation
Beneficiation of iron ore. United States Patent 4206878. Abstract: Iron ore is beneficiated using separation steps based on mineral composition without the use of separation steps based entirely on size. In a preferred sequence of steps the iron ore is passed from a ball mill through a magnetic separator where low iron content tailings are ...
MTM Series Trapezium Mill - Grinding Mill, Grinder, Mills ...
Upgrade Product Of Raymond Mill. MTM trapezium mill is a new type of industrial mill designed on the basis of Raymond mill, creating a new mark post in the grinding mill industry. The MTM Medium Speed Trapezium Mill is the world's leading industrial mill. Feed particle size: 0-35mm. Production capacity: 3-22 tons / hour.
Powder Grinding Machine,Stone Crushing Machine,Grinding ...
Longyan City Samhar Machinery Manufacturing Co.,Ltd. Longyan City Samhar Machinery Manufacturing Co., Ltd. was established in 2004. It is a high-tech enterprise specializing in the research, development, design and manufacture of ultrafine grinding machine, powder modification equipment, and sand making equipment.
Cominco Copper Mine, Highland Valley, British Columbia ...
The Highland mill, the world's third largest copper concentrator, was constructed in the late 1980s by combining the original Lornex and Highmont mills.The complete Highmont mill was moved by road 10km from its former site to a new position adjacent to the Lornex plant. The crushed ore enters two grinding stages in five parallel grinding lines incorporating two fully-autogenous …
Grinding Mill - an overview | ScienceDirect Topics
A crushing plant delivered ore to a wet grinding mill for further size reduction. The size of crushed ore (F 80) was. 4.0 mm and the S.G. 2.8 t/m 3. The work index of the ore was determined as 12.2 kWh/t. A wet ball mill 1 m × 1 m was …
Hammer Mills for Material Reduction | Williams Patent Crusher
HAMMER MILLS. Williams Patent Crusher is a leading industrial hammer mill manufacturer. Our industrial size reduction machines can handle any material size reduction job. Choose a Williams machine for high efficiency and economy. Using midair and impact crushing, grinding, and shredding, our machines can handle virtually any material.
Trunnion bearing support system - DOMINION ENGINEERING ...
This invention is directed to a bearing support and in particular to a bearing support for a trunnion shaft, in combination with a grinding drum structure supported thereby. In the operation of grinding mills such as ore grinding mills, which includes ball, rod and autogenous mills, the load carried by the mill can vary quite considerably.
WO2009077940A1 - A method of grinding a ... - Google …
- Google Patents A method of grinding a mineral-containing ore, which includes grinding the mineral-containing ore in a primary milling process and thereafter fine grinding the …
ZA201004901B - A method of grinding a ... - …
A kind of ball mill ball grinding method of low milling unit consumption CN106650035B (en) * : : : A kind of method of accurate selection rod mill rod iron diameter CN106492940B (en) * : :
US Patent: 682,157 - Grinding or Crushing Mill.
US patent 682,157 Grinding or Crushing Mill. was issued to Dow L. Adelsperger of Springfield, Clark County, OH. It was granted on 09/10/1901.
Processing High-Grade Concentrates from Challenging Low ...
Grinding of the fairly fine feed is necessary and the only required concentration method is with a proprietary magnetic separator (patent pending). The first plant delivers a concentrate to the first commercial iron "nugget" operation, which is based on technology developed by Kobe Steel and piloted in cooperation with US Steel.
(PDF) Gold Extraction and Recovery Processes For Internal ...
Grinding and Sizing Ore is stockpiled at the mill before being fed into a semiautogenous grinding (SAG) mill with lime, water and steel balls. The larger particles from this mill are returned to the SAG mill for more grinding. The finer particles receive more grinding in a ball mill, and are size classified to give a final product of 80% <70 ...
METHOD FOR PROCESSING IRON ORE CONCENTRATES - STEEL …
METHOD FOR PROCESSING IRON ORE CONCENTRATES. United States Patent 3791595. Abstract: A water slurry of an iron ore concentrate from concentration equipment, for example, magnetic separators in a primary circuit containing fine high grade mineral particles, coarse low grade middling particles and coarse high grade mineral particles, is pumped to ...
Ore Grinder Mill China Trade,Buy China Direct From Ore ...
Alibaba offers 3,749 ore grinder mill products. About 1% of these are grinder. A wide variety of ore grinder mill options are available to you, such as mini grinder. There are 3,749 ore grinder mill suppliers, mainly located in Asia. The top supplying country or region is China, which supply of ore grinder mill respectively.
Rock Crusher History - Mineral Processing & Metallurgy
History tells us, it was in 1830, the first US patent was issued on a rock crushing machine.It covered a device which, in a crude way, incorporated the drop hammer principle later used in the famous stamp mill, whose history is so intimately linked with that of the golden age of mining.In 1840, another patent was issued, which comprised a wooden box containing a …
Milling around | Article about milling around by The Free ...
Accordingly, a distinction is made among ball,rod, pebble, ore-pebble, and self-grinding mills. The drum of a mill rotates at 60–95 percent of the "critical speed of rotation" ( n cr = 42.3/ rpm, where D is the inside diameter of the drum in meters).
41r/Min Mineral Grinding Machine Ball Mill equipment For ...
Quality Mineral Grinding Machine from China.
Industrial Roller Mill | Roller Mill Manufacturer ...
Williams Patent Crusher designs and manufactures high-quality industrial roller mills that consistently deliver a uniform grind for almost any material. It is our goal to provide a machine that offers a better value for our customers while still being a powerful piece of machinery. One of the key components of the Williams vertical roller mills ...
China Mine Grinder, China Mine Grinder Manufacturers and ...
US $6850 / Set. 2. Process chart of Clay Grinder: Clay Grinder is one grinding machine, which could be taken during mining process for rock ore. And Clay Grinder could deal with gold, silver, lead, zinc, iron, molybdenum, copper, antimony mine. We are top 3 and with more than 20 years experiences in mining equipment.
Testing method for ball mills - Outokumpu Technology Oyj
The objective is to establish the grinding time required to grind the ore to 80% passing 1.7 millimeter (10 mesh), the closing screen size. The Starkey test demonstrates a strong correlation between the grinding time for ores and their corresponding …
HM X-mill - Mineworx Technologies
HM X-mill. Mineworx has developed the unique HM X-mill, a patent-pending, eco-friendly, portable, energy-efficient, mineral grinding mill. The HM X-mill is a transformation in grinding technologies and is based on Mineworx's proprietary, high velocity, horizontal rotary milling design. It is designed for the fine grinding of ores and ...
LINER FOR GRINDING MILLS - NORMAN T,US
1. A liner for at least a portion of the interior of a grinding mill adapted to utilize iron balls, steel balls, iron rods, steel rods, pebbles, rocks and the like as the grinding media, comprising: 2. A liner as defined in claim 1, wherein: 3. A liner as defined in claim 1, wherein: 4.
Patents Assigned to Minneapolis Electric Steel Castings ...
Date of Patent: October 20, 1981. Assignee: Minneapolis Electric Steel Castings Company. Inventor: James E. Mishek. Shell liner assembly for ore grinding mills. Patent number: 4270705. Abstract: The disclosure is directed to an improved liner assembly for the drum or shell of an ore grinding machine, comprising a first plurality of liner ...