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Jiangyin Dongbang Steel Ball Machinery Co.,Ltd

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100mm Forged Grinding Ball for Iron Ore Mine

100mm Forged Grinding Ball For Iron Ore Mine Introduction “Dongbang” brand 100mm forged grinding ball for iron ore mine, your best choice for iron ore mine mineral processing. The higher and even hardness grinding balls can save your ball consumption around 20%. Specifications Application: 100mm...

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100mm Forged Grinding Ball For Iron Ore Mine Introduction
“Dongbang” brand 100mm forged grinding ball for iron ore mine, your best choice for iron ore mine mineral processing. The higher and even hardness grinding balls can save your ball consumption around 20%.
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Specifications
Application: 100mm Forged Grinding Ball For Iron Ore Mine for Different Type Ball Mill
Grinding Media Ball size: 25mm/30mm/40mm/50mm/60mm/70mm/80mm/90mm/100mm/120mm/125mm
D25MM-100MM Grinding Ball Production Method: Hot Rolling
D100mm-125mm Grinding Ball Production Method: Forging
Steel Rod Supplier: NISCO, HUAI STEEL, ETC

                                                                                  Steel Rod Type: B3, Chemical Comments

C

Si

Mn

P

S

Cr

0.61-0.65

1.73-1.80

0.73-0.80

≤0.020

≤0.015

0.80-0.88

Ni

Cu

Mo

Alt

V


≤0.25

≤0.20





100mm Forged Grinding Ball For Iron Ore Mine Quality Performance

Ball Size

Surface Hardness

Core Hardness

Volume Hardness

Impact Toughness

60mm

61-63 HRC

59-61 HRC

59-62 HRC

≥14 J/CM2

70mm

61-63 HRC

59-61 HRC

59-62 HRC

≥16 J/CM2

80mm

61-63 HRC

59-61 HRC

59-62 HRC

≥18 J/CM2

90mm

61-63 HRC

59-61 HRC

59-62 HRC

≥20 J/CM2

100mm

60-62 HRC

58-60 HRC

58-62 HRC

≥22 J/CM2

120mm

60-62 HRC

58-60 HRC

58-62 HRC

≥24 J/CM2

125mm

60-62 HRC

58-60 HRC

57-61 HRC

≥26 J/CM2

Original: Jiangyin, Jiangsu, China
Certification: ISO9001, ISO14001, OHSAS18001 etc.
Price: Negotiable
Material: Alloy Steel
Payment term: TT, LC
Delivery date: Negotiable
Packing: Plastic Ton Bag, 1000Kgs Each Bag

Difference between hot rolled grinding balls and casted balls:

A)Difference in steel ball consumption

In 2014-2015, A certain mining company has, according to the hot rolled grinding balls of DongBang company and use of casted balls by a certain factory, drawn up a list of comparision in use and consumption as follows:

              Type of
             Steel Ball

Super-high
     -chromium
     Steel Ball
     Cr 18%

High
     -chromium
     Steel Ball
     Cr 10%

Medium
     -chromium
     Steel Ball
     Cr 6%

Low
     -chromium
     Steel Ball
     Cr 3%

Dongbang
     Hot Rolled
     Steel
     Ball

EXW
     Price

RMB8000
     /Ton

RMB5000
     /Ton

RMB4500
     /Ton

RMB3500
     /Ton

RMB6800
     /Ton

Wear
     Consumption

>500
     Grams

>850
     Grams

>1000
     Grams

>1200
     Grams

<500
     Grams

Steel Ball
     Consumption
     Per Ton of
     Concentrate

>1500
     Grams

>2550
     Grams

>3000
     Grams

>3500
     Grams

<1200
     Grams

图片108.png

According to the above list, we can make an analysis as below:

1.The wear consumption per ton of ore for hot rolled ball is lower above 40% than high chromium casted balls; raising the output and reducing the power consumption.

2.Various technical parameters of hot rolled balls are 15-300% higher than casted balls. The ball mill operates with stable vibration, the current of ball mill is balanced and the production capacity is higher. All the above-mentioned aspects of ball mill are superior to casted steel balls. 

3.By analyzing the concentration and fineness of mineral processing, the standard of hot rolled balls is in full accordance with the mineral processing requirements of mining enterprises. Various data are higher than high-chromium casted balls. 

4.A ball mill has a longer actual production time for hot rolled steel balls than casted balls.

B)Comparison in cost and benefit of steel balls:

According to the use data provided by an iron concentrate enterprise of 10 million tons per year, we have drawn up a comparison of cost and benefit between hot rolled grinding balls and caseted balls used by the enterprise:

(1)By using hot rolled grinding balls, wear consumption of steel ball per ton of raw ore can reduce around RMB2.5 yuan. Calculating based on 1 ton concentrate from 3 ton raw ore mineral processing, 75 million yuan per year of steel ball cost can be reduced for 10 million tons iron concentrate output per year; the cost reduction, efficiency increase, energy saving and emission reduction can be achieved really. 

(2)The change interval of hot rolled grinding balls is at least 170 days longer than casted balls. The production period of ball mill using hot rolled grinding balls is around 170 days longer than using casted balls. The production capacity has been improved when the labor cost remains unchanged. 

(3)To take general iron ore mining enterprise for example, each ton of iron ore needs to be amortized by various expenses. After using hot rolled grinding balls, the unit output of ball mill be improved. The increase of ore output can offset various amortized expenses to be born by ton. 

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