An HSI crusher is suitable for crushing soft to medium-hard materials, such as limestone, gypsum, lignite, coal, coke, weathered shakes, and phosphate. The horizontal shaft impactor is better suited for softer, less abrasive stone. VSI crushers can handle hard and abrasive rocks, such as granite, gravel, trap rock, and basalt.
The Bond Abrasion Test determines the Abrasion Index, which is used to determine steel media and liner wear in crushers, rod mills, and ball mills. Bond developed the following correlations based on the wear rate in pounds of metal wear/kWh of energy used in the comminution process. Determining rock abrasivity in the laboratory ref
crushing cost vs hardness sindex rock phosphate. Crushing Cost Vs Hardness Rock Phosphate hardness of rock phosphate for grinding hardness of rock phosphate for grinding Hydroxylapatite Wikipedia Hydroxylapatite, also called hydroxyapatite HA, is a naturally occurring mineral form of calcium apatite with the formula Ca 5 PO 4 3 OH, but …
Hardness - 5. Specific Gravity - 3.1 - 3.2 Grades: 18-20%. 22-24%. 25-27%. 30-31.5% . Uses: Agriculture. Phosphate rocks as raw materials for P-fertilizer manufacturing. Fertilizer industry. Production of animal Feed supplements and Food products. Detergents. Chemicals Packing and Transportation: Packed in 50kg HDPE …
Commodity Agricultural Raw Materials Index; Commodity Beverage Price Index; Commodity Price Index; Commodity Fuel (energy) Index; Commodity Food and Beverage Price Index; ... Rock Phosphate Monthly Price - US Dollars per Metric Ton. Range. 6m 1y 5y 10y 15y 20y 25y 30y. Sep 2023 - Feb 2024: -195.000 (-56.12%)
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Gyratory crusher: feed diameter 0.75 to 1.5m; reduction ratio 5:1 to 10:1, usually 8:1; capacity 140 to 1000 kg/s; Mohs hardness <9. More suitable for slabby feeds than jaw crusher. [reduction by compression]. Roll crusher: feed diameter 1 cm: reduction ratio 5:1 to 10:1; capacity 0.3 to 20 kg/s: Mohs hardness < 7.5.
The single most common reason for an increase or drop in the production of fines is the WORK INDEX of the ore. If you remember, the work index of the ore is a method of measuring the degree of hardness. As the ore becomes harder the fracture lines in the rock become cleaner or sharper with less crumbling of the face and edges of the …
Phosphate rock and phosphorite are names used for sedimentary rocks that contain at least 15% to 20% phosphate on the basis of weight. The phosphorous content in these rocks is mainly derived from the presence of apatite minerals. Uses of Apatite as Phosphate Rock. Most of the phosphate rock mined throughout the world …
Strength vs. Hardness vs. Toughness. Ask Question Asked 5 years, 2 months ago. Modified 2 years, 7 months ago. Viewed 32k times 3 $begingroup$ ... Hardness is usually measured at the surface by trying to make a scratch or indent with another material (a harder rock is able to scratch a softer rock) $endgroup$ – EMiller. …
The LA value was estimated with the help of some aggregate tests (rock impact hardness-RIHN, coefficient of rock strength-CRS and aggregate crushing value …
This Table of Ball Mill Bond Work Index of Minerals is a summary as tested on 'around the world sample'. You can find the SG of each mineral samples on the other table. Source 1. Source 2. Source 3. Source 3. Source 4.
As a basic rule, impact crushing is suitable for rocks with a low work index (<12) as well as low silica (<20%) and moisture levels (<5%). Rocks with these characteristics are soft and non-abrasive, and …
Ore properties In the selection of phosphate ore crushing and screening equipment, should be fully considered the hardness and particle size of the ore. Ore hardness Ultimate Compressive Strength /Mpa Platts Hardness /f Hard 160~200 16~20 Medium 80~160 8~16 Soft <80 <8 crushing stage For the phosphate ore processing …
Here is an illustration of the typical relationship between the Mohs Mineral Hardness Scale and their corresponding Bond Abrasion Index. ref by David Michaud February 29, 2024 October 8, 2015 …
Apatite is found in sedimentary, igneous, and metamorphic rocks. There are six economic deposit types for phosphate rock: 1) marine phosphorites, 2) igneous apatite, 3) residual phosphorites, 4) river pebble phosphate deposits, 5) phosphatized rock, and 6) guano. Phosphate Rock in Wyoming Download the Phosphate Rock in Wyoming report. …
mineral hardness by roller spec. of crusher – beltconveyers. PG rollers crusher is mainly used to crush material below the medium hardness, such as clinker mineral … 450mm Moh's hardness: 4-6 Designing production ….
The crushing and grinding system can be challenging due to the hardness of rock phosphate. However, advances in technology and machinery have made it possible to crush and grind rock phosphate efficiently and effectively. Overall, the crushing and grinding system is an important part of the process of producing rock …
What is Apatite? Apatite is the name of a group of phosphate minerals with similar chemical compositions and physical properties. They are an important constituent of phosphorite, a rock mined for its phosphorus content and used to make fertilizers, acids, and chemicals. Apatite has a relatively consistent hardness and serves as the index …
This is repeated on a minimum of 20, ideally 50 pieces of rock within a sample with the results used to calculate the Point Load Index. Sample requirements: Sufficient core to break 50 pieces with a length-to-diameter ratio of at least 2.5:1 and a core diameter ideally about 50mm, although 20 to 60 mm is acceptable.
In mineral processing or metallurgy, the first stage of comminution is crushing. Depending of the type of rock ( geometallurgy) to be crushed, there are 2 largely different techniques at your disposition for crushing rocks. In principle, compression crushing is used on hard and abrasive rocks by placing them between a high wear …
• A linear deformation of the surface of the rock and/or very fine crushing, Fig. 2 A. • Crushing of rock fabric, which is represented by "steps" on the profile, Fig. 2 B. • Chipping of rock fragments, which is represented by peaks on the profile, Fig. 2 C. (d) As stated in the testing procedure, in order to assess the precision and to calculate the …
Crushing is a size reduction process that plays a key role in both mineral processing and crushing–screening plant design. Investigations on rock crushability …
Gravel cost per square foot. Gravel costs $0.50 to $2.50 per square foot on average with coverage 12" deep (a cubic foot), depending on the type. Base gravel, crusher run, slate, shale, and crushed concrete cost $0.50 to $1.50 per square foot.. Colored and decorative gravel cost $2 to $4 per square foot. Gravel delivery cost
Commodity Agricultural Raw Materials Index; Commodity Beverage Price Index; Commodity Price Index; Commodity Fuel (energy) Index; Commodity Food and Beverage Price Index; ... Rock Phosphate Monthly Price - Indian Rupee per Metric Ton. Range. 6m 1y 5y 10y 15y 20y. Sep 2023 - Feb 2024: -16,210.880 (-56.17%)
Ore sample. The ore samples were taken from medium–low grade calcium magnesium phosphate ore in Guizhou's phosphate rock area and crushed to − 1 mm. Fluorapatite, dolomite and quartz pure ...
Due to the low hardness of the phosphate rock in this project, from the perspective of reducing equipment investment, jaw crushers should be selected for coarse crushing, and hammer …
hardness of rock phosphate for crusher T03:11:22+00:00 Phosphate Rock Hardness Cromalinsupport. The results revealed that the maximum hardness of 229 HV ... PHOSPHATE DEPOSITS D3 low-value commodity and transportation costs may add substan tially to its price at the point of final use. decreasing hardness, and decreasing …
This is or was used by to acquire the Impact (AKA Crushing) Work Index for sizing crushers. Use this in complement to the Bond Crushing Work Index Procedure. Another Summary Table of various Impact Work Index by Rock or Mineral Type (/metric tonne). Find a referential Rod Mill Work Index Table here.