mines and its techology

7/30/2019 MINES AND ITS TECHOLOGY

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*FAQS*

1) What is VSI & what are the applications / uses of VSI?

Ans.: VSI is Vertical Shaft Impactor.

Applications of VSI Crusher:

a) VSI Crusher is used to shape the material (For Ex. Stone); It converts flaky to cubical material.

b) It is used as a crusher to crush the product of maximum 40 mm to fines below 4.75 mm.

Uses of VSI Crusher:

Generally VSI Crushers are used in construction industries for manufacturing cubical aggregates & crushed sand.

Following Chart shows uses of VSI Crusher.

Sand Quartz Cement Clinkers Refractory Bricks

(Below 4.75 mm) Iron Ore Lime Stone etc. Concrete Waste

Aggregates Phosphate Ceramic Waste

Garnet Glass Waste etc.

Granite

Quartzite

Aluminum Oxide

Dolomite etc.

2) How VSI Crusher Works? (Working Principle)

Ans.: VSI Crusher works on Cleavage Crushing Principle (Considering Stone to be crushed). The material to be crushed is f

in the center of the rotor which is rotating at high velocity & imparts material from rotor.

The ejected material collides on a rock shell where the kinetic energy inside that material blasts it into the fine partic

Velocity is the most important factor in VSI Crusher. For shaping the material VSI is run at low / less velocity. For

crushing purpose VSI should run at high velocity.

When material imparts on the crushing chamber, a hard layer of crush material is formed inside the crushing chambe

3) What is the raw material required for manufacturing Artificial sand? What is the feed size?

Ans.: Raw material required for manufacturing Artificial Sand:

a) The stone which is durable & used for aggregate manufacturing like 20 mm, 12 mm, 6 mm available in th

local area.

b) This raw material is available from local jaw crushing companies.

Feed size required for manufacturing Artificial Sand:

Construction

Industries

Minerals

Processing

Cement

Industries

Refractory

Industries

VSI CRUSHER


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a) To manufacture artificial sand the recommended feed size is below 16 mm.

(Smaller the size, more is the production)

b) To manufacture artificial sand as well as cubical aggregates the recommended feed size is below 40 mm.

4) What is the cost of sand making machine?

Ans.: Sand making machines are available in different models depending up on capacity & the feed size.

Rate varies as per model selected.

Following is the model list:


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5) What is Throughput Capacity & Output Capacity?

Ans.: Throughput capacity is nothing but the total material which is feed inside the VSI Crusher.

Output capacity is nothing but the finished product after screening.

6) What are the A series & B series models?

Ans.: A series models are used to produce only sand (below 4.75 mm), where the feed size is 0 to 16 mm.

B series models are used to produce cubical aggregates (i.e. 20 mm & 12 mm) as well as sand (below 4.75 mm),

where the feed size is 0 to 40 mm.

7) How to select model?

Ans.: Study the market demand along with the awareness & which product you want.

8) How much area is required for set up the plant & how to select it?

Ans.: Area required for set up:

Minimum 10,000 sq. feet area is required for setting up the plant.

How to select area:

a) Area should be in crushing zone, away from residential & agricultural area.

b) Raw material should be available with minimum transportation.

9) How much Manpower required for the set up?

Ans.: One (1) skilled operator cum supervisor & three (3) helpers for carrying any maintenance work.

10)What are the licenses required?

Ans.: Licenses required are:

a) Land should be non-agricultural.

b) Permit of local government.

c) NOC from pollution control board.

d) SSI registration

e) License from mining department.


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11)What is the Profitability Report? Whether this project is profitable?

Ans.: Profitability of sand making machine (Considering 30 Tons / Hrs. Capacity):

NOTE: This is a guideline how to make profitability report. Rates may vary according to location hence, visitor should

workout profitability report according to local rates. Calculation you can do by filling the below table online on the sam

page.

r.

No.

Particulars *Figures only for

Guidelines

As per customer local

supply / Availability

01 LAND & BUILDING :

Land required is minimum 30,000 sq. ft on rent per month 5,000.00

02 PLANT & MACHINES :

a) Sand making machine & Electrical

b) Excise Duty on above

c) Installation & Electric fittings etc.

d) Transportation & other misc.

e) M.S.E.B. Deposits

40,00,000.00

4,94,400.00

1,20,000.00

10,000.00

2,00,000.00

TOTAL 48,24,400.00

03 RAW MATERIAL :

0 to 16 mm material required per month

(30 Tons x 8 hrs x 25 days) = 6000 Tons @ Rs. 125.00

7,50,000.00

04 SALARIES & WAGES :

a) Operator One @ 7,000/- per month

b) Helpers One @ 4,000/- per month

7,000.00

4,000.00

TOTAL 11,000.00

05 POWER & WATER :

a) Power charges per month

b) Misc. maintenance wear & tear per month

1,00,000.00

25,000.00

TOTAL 1,25,000.00

06 WORKING CAPITAL REQUIRED :

a) Rent for 2 months (1 x 2)

b) Raw material for 2 months (Sr. no. 3 x 2)

c) Labor charges & salaries for 2 months (Sr. no. 4 x 2)

10,000.00

15,00,000.00

22,000.00


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d) Power, wear & tear for 2 months (Sr. no. 5 x 2) 2,50,000.00

TOTAL 17,82,000.00

07 TOTAL (Sr. no. 2 + Sr. no. 6) 66,06,000.00

08 MONTHLY EXPENCES :

a) Rent per month (From Sr. no. 1)

b) Raw material per month (From Sr. no. 3)

c) Salaries & wages per month (From Sr. no. 4)

d) Power & water charges (From Sr. no. 5)

Interest on Total Capital per month (Sr. no. 7 x 13% / 12)

Depreciation (Sr. no. 2 x 15% / 12)

5,000.00

7,50,000.00

11,000.00

1,25,000.00

71,569.00

59,275.00

TOTAL 10,21,844.00

09 SALES PROCEED :

Selling manufactured sand 30 Tons x 8 hrs x 25 days =6,000 Tons @ Rs. 380.00

22,80,000.00

10 GROSS PROFIT PER MONTH (Sr. n. 09 Sr. no. 08) 12,58,156.00

PROFIT TO CAPITAL RATIO COMES TO 81 %

FEASIBILITY OF THE PROJECT:

Feasibility of the project to manufactured Artificial Sand / Crushed Sand depends up on following points:-

1) Rates & availability of natural sand is a basic criteria for feasibility.

2) Cost of river sand is calculated on distance of transportation from riverbed to destination along with royalty (Govt. F

If cost of river sand is equal to cost of manufactured sand following points have to be considered:-

a) 25% bulk age is to be considered for wet sand. Sieving. Wastage of 25% is to be considered for oversize material.

b) If organic impurities are more than 6%, sand should be washed. Washing cost is not less than Rs. 300.00 for 100

c) Sand from riverbed i.e. natural source doesnt confirm to IS 383 Grade, as natural manufacturing of sand is stopp

because of Dam constructed on every riverbed.


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SAND MAKING MACHINE IS AVAILABLE IN VARIOUS MODELS AS BELOW:


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12)What is material flow diagram for A series machine & B series Machine? What is power requirement for various

models along with the list of accessories? How crushed sand is manufactured & what are the equipments required

Ans.:

FINES

(-150 MICRONS)

BC-3

FEEDING HOPPER

BC-1

BC-2

VIBRATORY SCREEN

(2 DECK)

SAND

(BELOW 4.75 MM)

BC-4

BC-3 VIBRO SCREENER

CUM FEEDER- 16 MM

+ 16MM

NOT IN AKASHGANGA'S SCOPE OF SUPP

VSI CRUSHER

DISCH

OUTLET

BAG FILTER

DUST ARRESTER

IN AKASHGANGA'S SCOPE OF SUPPLY

SCREW

CONVEYOR

0 TO 16 MMMATERIAL

OPTIONAL FOR REMOVING FINES (BELOW 0.15 MM)

'A' SERIES

LIST OF ACCESSORIES

1) FEEDING HOPPER2) VIBRO SCREENER CUM FEEDER3) BELT CONVEYORS(BC1 to BC4)4) VSI CRUSHER / SAND MAKING M/C5) DUST ARRESTER6) BAG FILTER7) VIBRATORY SCREEN8) FINES STOCKING HOPPER

Tentative Power Consumption for Sand making Plant

Throughput(Crushing) Capacity

(TPH)

Production ofZONE I Sand

(TPH)

VSI crusherModel

Feed Size(mm)

Tentative Powerconsumption

(HP)

35 to 40 TPH 15 to 20 TPH MD 1550 A 0 to 16 mm 100 to 135 HP



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FINES

(- 150 MICRONS)

BC-3

FEEDING HOPPER

BC-1

BC-2

BC-3VIBRO SCREENER

CUM FEEDER- 40 MM

+ 40 MM

VSI CRUSHER

DISCH

OUTLET

BAG FILTER

DUST ARRESTER

SCREW

CONVEYOR

BC-5

BC-4

SAND

(BELOW 4.75 MM)

VIBRATORY SCREEN

(3 DECK)

20 MM

CUBICAL

AGGREGATES

FEED

MATERIAL0 TO 40 MM

NOT IN AKASHGANGA'S SCOPE OF SUPPLYIN AKASHGANGA'S SCOPE OF SUPPLY OPTIONAL FOR REMOVING F INES (BELOW 0 .15 MM)

'B' SERIES

LIST OF ACCESSORIES

1) FEEDING HOPPER2) VIBRO SCREENER CUM FEEDER3) BELT CONVEYORS(BC1 to BC5)4) VSI CRUSHER / SAND MAKING M/C5) DUST ARRESTER6) BAG FILTER7) VIBRATORY SCREEN8) FINES STOCKING HOPPER

Tentative Power Consumption for VSI Crusher Plant

Throughput (Crushing)Capacity (TPH)

VSI crusherModel

Feed Size(mm)

Tentative Powerconsumption(HP)

35 to 40 TPH MD 1550 B 0 to 30 mm 100 to 135 HP







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13)What is VSI with D.F.P. (Dust Free Production) Technology?

Ans.: D.F.P. (Dust Free Production) Technology is a unique attachment which can be fitted only with Akashgangas VSI

Crushers. This attachment is designed for keeping the quality seeking customers in mind. D.F.P. Technology separates

maximum fines below 150 microns from crushed product. These particles are settled & collected in a specially designed Darrester & a Bag filter. Separation of fines below 150 microns from crushed product helps in reducing the air pollution &

increasing the quality of the final product.

14)Do Akashganga helps in promotion of products of its customer in local area?

Ans.: Akashganga helps to promote customers by giving technical knowhow marketing skills, tips for marketing etc.

15)After Sales Service

Ans.: Akashgangahas training facilities for operators of sand making machines & also gives online based services with all

technologies.

About Artificial Sand / Manufactured Sand / Crushed Sand:

16)What is Sand?

Ans.: The technical name of sand is Fine aggregate. Sand means the material below 4.75 mm up to 150 microns with pr

gradation of particles as per IS 383 Standard which was published in 1970. Gradation Chart is mentioned below:-

IS Sieve

Designations

Percentage Passing For

Grading ZONE I Grading ZONE II Grading ZONE III Grading ZONE IV

10 mm 100 100 100 100

4.75 mm 90 - 100 90 - 100 90 - 100 90 - 100

2.36 mm 60 - 95 75 - 100 85 - 100 95 - 100

1.18 mm 30 - 70 55 - 90 75 - 100 90 - 100

600 Microns 15 - 34 35 - 59 60 - 79 80 100

300 Microns 5 - 20 8 - 30 12 - 40 15 50

150 Microns 0 - 10 0 - 10 0 - 10 0 - 10

Because of this gradation voids in the sand is minimized & the sand cant be rejected for any type of project work.

17)What is the role of Sand in Concrete?

Ans.: Fine aggregates (Sand) designed by the Indian standard IS 383 is used in cement concrete to achieve good quality

concrete for buildings & dam constructions. It is used as filler material to fill the void in aggregates. Sand should be in pro

gradation, these gradations mentioned in the IS 383.

Till today river sand was used as a fine aggregates which was very economical earlier but, now a days it becoming

difficult to gate good quality sand from short distance. Artificial sand is the perfect substitute for River sand which can be

used in concrete mix.


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18) What are the benefits of Artificial Sand over Natural Sand?

Ans.: Artificial Sand / Manufactured Sand / Crushed Sand have following advantages over Natural Sand:-

Sr.

No.

Artificial Sand / Manufactured Sand / Crushed Sand Natural (River) Sand

01 Artificial Sand doesnt contain impurities like silt &silica etc. This sand doesnt contain any organic

matter so; strength of the structure remains same.

This sand contains impurities like silt, silica etc. It alsocontains organic impurities like pieces of wood, leaves,

bones etc. which after some time duration gets decayed

& weakens strength of structure.

02 Artificial Sand is made from only one type of stone

so; the binding strength between the particles is

good.

Natural Sand is made from different type of stones so;

binding strength varies.

03 Artificial Sand has proper gradation of coarse & fine

aggregates so; voids are filled completely. This

reduces cement consumption.

Natural Sand which is available today, dont have fines

below 600 microns in proper gradation. So, voids in the

concrete are not filled properly & also increases cement

consumption.

04 Artificial Sand better compressive strength as

compared to river sand.

Natural Sand gives low compressive strength as compare

to Artificial Sand.

05 As the voids are filled properly, strength of the

concrete is achieved.

As the voids are not filled properly, strength of the

concrete is not achieved.

06 Artificial Sand has constant fineness modules of

aggregate so; no necessity of the change in concrete

mix design.

As every truck of Natural Sand has different fineness

modules, every time concrete mix design have to be

changed.

07 Artificial Sand can be produced in ample quantity so;it is cheaper as compare to Natural Sand.

Natural Sand is available in less quantity so; it is costlier.

08 Artificial Sand is manufactured from the Wastage

product (i.e. 6 mm / 12 mm material) of Crushers so;

it is not much harmful to the nature.

Because of sand dragging, riverbeds had become deep. It

is harmful to the nature.

09 Artificial Sand is best as per Vastushastra, as it

doesnt contains any pieces of Bones, Woods etc.

Natural Sand contains pieces of bones, woods etc. so; it i

not suitable as per Vastushastra.

19)Does Artificial Sand need to be washed?

Ans.: Sand is washed for removing the unwanted impurities below 150 microns like silt, silica etc. As the artificial sand is

made from the stone, it doesnt contain impurities like silt, silica & mica. In IS 383, 20% fines below 150 microns are allow

in Crushed stone Sand.

If customer requires minimizing the quantity of fines below 150 Microns, then it is necessary to wash the sand.

Akashgangas VSI crusher facilitates an unique attachment of D.F.P. (Dust Free Production) Technology. This helps in

removing the fines below 150 microns by using air suction. This is a 100% Dry Process no water is required. So if VSI

crusher is installed with D.F.P. Technology, there is no need to wash the sand.


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20)How much is the wastage?

Ans.: Fines which are blown away in the air at the time of crushing can be considered as wastage. All other material can b

converted into Sand. If customer removes the fines below 150 microns then these fines can be supplied to paint

manufacturing industries, Multicolor paving block making units, gray putty can be manufactured.

21)What is difference Between Akashgangas Crushed Sand & Other manufacturers Crushed Sand?

Whether this sand replaces river sand?

Whether we are getting the same strength, what we are getting with River Sand.?

Can we use 100% crushed sand?

Ans.:

1st

you should know what is sand and what is role of the sand in the concrete?

The technical name of sand is Fine Aggregates. Government authorities had provided IS

code for gradation of sand, i.e. IS 383, published in 1970.

In this, sand is divided into 4 different zones as, Zone I, Zone II, Zone III & Zone IV. Sieve analysis for these Zo

is attached for your reference.

So in short sand is nothing but gradation of particles below 4.75 mm upto 150 Microns. Percentage of above

gradations differs for different Zones.

Only Akashgangas Sand making machine can give sand as per these gradations. that to stone available in you

area.

22)What are Jamuna Sand, Nirman Sand, Crystal Sand, M Sand, and Robo Sand?

Ans.: These are names of the sand. The company, who manufactures the sand, sells it with their Brand name. All above a

Brand names. The product what they are selling is the same what Akashgangas machine manufacture.

mines and its techology

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