Pipe: Diameter And Length
Dear Oussama Boualy,
Material density = 3277 kg/m3 and particle size = approx. 800 micron, results in a suspension velocity of approx. 8 m/sec.
An air velocity of approx. 4 * 8 = 32 m/sec is then required to keep the particles in suspension.
The gas volume is then calculated as: 32 * pi/4 * 0.154^2 = 0.6 m3/sec # 0.53 kg/sec
The solid loading ratio (SLR) = 1/0.53 = 1.88.
(Unless the conveying length is very long, the SLR is considered rather low)
The required capacity is obviously 1 kg/sec = 3.6 tons/hr
Missing information is:
-material
-conveying length (vertical, horizontal)
-number of bends.
-general description of installation and why pneumatic conveying is the preferred solution.
Have a nice day
Teus ■
Teus
Pipe: Diameter And Length
Originally Posted by Oussama Boualy
I'm working on a dilute phase conveying systeme and have some problems to determinite the air velocity to transport 1kg/s of material.
caracteristics :
material density : 3277 kg/m^3.
particule diameter : 778.885 µm.
pipeline diameter : 0.16 m.
air density: 0.89 kg/m^3 at 120°C.
solid's flow : 1 kg/s.
thnk you
Hi! The bore is probably too small, and the length of the pipe is missing. Regards, ManfredH ■
Dilute Phase Conveying System
Originally Posted by Oussama BoualyI'm working on a dilute phase conveying systeme and have some problems to determinite the air velocity to transport 1kg/s of material.
caracteristics :
material density : 3277 kg/m^3.
particule diameter : 778.885 µm.
pipeline diameter : 0.16 m.
air density: 0.89 kg/m^3 at 120°C.
solid's flow : 1 kg/s.
thnk you
Sorry! Regarding the bore I was wrong! ManfredH ■
Dilute Phase Conveying System
Dear Teus Tuinenburg.
I would like to know how to determine the Suspension velocity.
Extra information:
Horizontal line : 7m
bend : 90°
horizontal line : 11m
bend : 90°
Vertical line : 17m
bend : 90°
Thank you very much.
Best regards. ■
Dilute Phase Conveying System
Dear Teus Tuinenburg.
I would like to know how to determine the suspension velocity (8 m/s in this case) .
Exta information :
i have 2 horizontal lines, a vertical line, and three bends:
Horizontal line : 7m
Bend : 90°
Horizontal line : 11m
Bend : 90°
Vertical line : 17m
Bend : 90°
Thank you very much .
Best regards. ■
Re: Dilute Phase Conveying System
Originally Posted by Teus TuinenburgMaterial density = 3277 kg/m3 and particle size = approx. 800 micron, results in a suspension velocity of approx. 8 m/sec.
An air velocity of approx. 4 * 8 = 32 m/sec is then required to keep the particles in suspension.
The gas volume is then calculated as: 32 * pi/4 * 0.154^2 = 0.6 m3/sec # 0.53 kg/sec
The solid loading ratio (SLR) = 1/0.53 = 1.88.
(Unless the conveying length is very long, the SLR is considered rather low)
The required capacity is obviously 1 kg/sec = 3.6 tons/hr
Missing information is:
-material
-conveying length (vertical, horizontal)
-number of bends.
-general description of installation and why pneumatic conveying is the preferred solution.
Have a nice day
Teus
Dear Teus Tuinenburg.
I would like to know how to determine the suspension velocity= 8 m/s and the origine of the factor 4 ; 32=8*4
the conveying length is 35m with three bends.
Information :
horizontal line : 7m
bend: 90°
horizontal line : 11m
bend: 90°
vertical line : 17m
Material temperature 400°C
vaccum system with a centrifugal fan.
i'll use Mr Armit Agarwal's article to calculate the pressure drop and i would like to compare with the results you will find
thank you very much.
Best regards. ■
Re: Dilute Phase Conveying System
Originally Posted by Teus TuinenburgMaterial density = 3277 kg/m3 and particle size = approx. 800 micron, results in a suspension velocity of approx. 8 m/sec.
An air velocity of approx. 4 * 8 = 32 m/sec is then required to keep the particles in suspension.
The gas volume is then calculated as: 32 * pi/4 * 0.154^2 = 0.6 m3/sec # 0.53 kg/sec
The solid loading ratio (SLR) = 1/0.53 = 1.88.
(Unless the conveying length is very long, the SLR is considered rather low)
The required capacity is obviously 1 kg/sec = 3.6 tons/hr
Missing information is:
-material
-conveying length (vertical, horizontal)
-number of bends.
-general description of installation and why pneumatic conveying is the preferred solution.
Have a nice day
Teus
Dear Teus Tuinenburg.
I would like to know how to determine the suspension velocity = 8 m/s and the origine of the factor 4 in the air velocity : 32=8*4
the conveying lengh is 35 m : 2 horizontal lines, a vertical line and 3 bends.
horizontal line : 7m
bens 90°
horizontal line 11m
bend 90°
vertical line 17m
bend 90°
the material inlet temperature is 400 °C, using a vaccum system working with a centrifugal fan.
I will calculate the pressure drop using Mr Armit Agarwal's article and compaire with the results you will find.
thank you very much .
Best regards. ■
Re: Dilute Phase Conveying System
Dear Teus Tuinenburg.
I would like to know how to determine the suspension velocity = 8 m/s and the origine of the factor 4 in the air velocity : 32=8*4
the conveying lengh is 35 m : 2 horizontal lines, a vertical line and 3 bends.
horizontal line : 7m
bens 90°
horizontal line 11m
bend 90°
vertical line 17m
bend 90°
the material inlet temperature is 400 °C, using a vaccum system working with a centrifugal fan.
I will calculate the pressure drop using Mr Armit Agarwal's article and compaire with the results you will find.
thank you very much .
Best regards. ■
Re: Dilute Phase Conveying System
Dear Teus Tuinenburg.
I would like to know how to determine the suspension velocity = 8 m/s and the origine of the factor 4 in the air velocity : 32=8*4
the conveying lengh is 35 m : 2 horizontal lines, a vertical line and 3 bends.
horizontal line : 7m
bens 90°
horizontal line 11m
bend 90°
vertical line 17m
bend 90°
the material inlet temperature is 400 °C, using a vaccum system working with a centrifugal fan.
I will calculate the pressure drop using Mr Armit Agarwal's article and compaire with the results you will find.
thank you very much .
Best regards. ■
Dilute Phase Conveying System
hi.
I'm working on a dilute phase conveying systeme and have some problems to determinite the air velocity to transport 1kg/s of material.
caracteristics :
material density : 3277 kg/m^3.
particule diameter : 778.885 µm.
pipeline diameter : 0.16 m.
air density: 0.89 kg/m^3 at 120°C.
solid's flow : 1 kg/s.
thnk you ■
Teus