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PowderProcess.net

Online handbook for Engineers working with powders and bulk solids


Your site of reference for Powder and Solids processing

Discover below the content of the free online handbook

What is www.PowderProcess.net ?

www.PowderProcess.net is a free online handbook giving explanations, design methods and operational tips on the most common unit operations and equipment found in Industries processing powders.

It gives materials for Engineers who, around the world, have to design, operate or troubleshoot a powder handling process.

Would you be a confirmed Engineer, a new graduate looking for information on the process he has 1st to work on, or a student, please access below articles on unit operations and equipment that, we hope, will be useful for you. www.PowderProcess.net also hosts Process Engineer's Tools, a new online ressource for Process Engineers, not limited to Powder Processing - This subsite is still in development.

Do you have a question, a remark ? Please contact the author at powder.process@protonmail.com

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PowderProcess.net Site content

Powder properties and flow Handbook Introduction to unit operations Equipment handbook
# Powder Properties
# Flow of solids
# Mass and funnel flow silos
# Particle density
# Bulk Density
# Skeletal density
# Particle Size Distribution (PSD)
# Mixing
# Froude number
# Homogeneity
# Segregation (demixing)
# Dosing and weighing
# Pneumatic Conveying
# Solid Gas Separation
# Grinding and Milling
# Solid Liquid Suspension
# Checking (sieve and magnets)
# Filling
# Safety
# Bag Tipping Stations
# Big Bag Tipping Stations
# Cyclones design guide
# Magnets
# Vibrating Sieve
# Airlock rotary Valve
# Conveying Pipe
# Blowers
# Pipe Diverters
# Filters
# Rotary Valves (pneumatic)
# Vibrating Tube
# Screw Conveyor
# Load Cells
# Mixers
# Paddle Mixers
# Ribbon Blenders
# Shear / Centrifugal Mixers
# Bin Tumbler mixers
# V Blenders


Mixing Handbook Pneumatic Conveying Handbook Safety Handbook
for bulk handling processes
# Coefficient of Variation (homogeneity)
# Mixer discharge time
# Froude number
# Mixer ATEX speed
# Mixer Loading
# Tip speed
# Mixing principles
# Mixing time
# Mixing volume
# Mixing Power consumption


# Types of pneumatic transport
# Conveying phases
# Dilute Phase transport
# Dense Phase transport
# Air mover
# Roots Blower
# Roots Blower performance curve
# After Cooler
# Airlock Rotary Valve
# Product inlet / Injector
# Piping # Filters
# Pick-up velocity
# Saltation velocity
# Choking velocity
# Conveying speed / velocity
# Air volumetric and mass flowrate
# Pipe Equivalent Length
# Solids particle velocity in pipe
# Bends
# Solids Breakage
# Pressure drop calculation
# Shortcut calculation Pressure drop dilute phase
# Published calculation models for dilute phase conveying
# Calculation of dense phase pneumatic conveying lines
#Pipe Diameter or Bore
# Design methods dilute phase
# Design methods dense phase
# Solids Loading Ratio
# Pipe Blockage
# Powder Build-up
# Selecting dilute or dense phase
# Blower power required
# Horizontal Conveying
# Vertical Conveying
# Dust explosion physical properties
# MIE - Minimum Ignition Energy of dust
# MIT - Minimum Ignition Temperature of dust
# SIT - Self Ignition Temperature of dust layers
# MEC - Dust Minimum Explosive Concentration
# Powder resistivity
# Characteristics of dust explosion Pmax and Kst
# Factors influencing dust explosions
# ATEX dust explosion : zones classification
# Ignition sources of dust cloud
# Bulk powder electrostatics hazards
# Dust explosion risks due to mechanical sparks or hot spots
# Dust explosion risks due to welding and cutting activities
# Electrical equipment in ATEX dust explosion zones
# Good housekeeping, avoid secondary explosions
# Dust explosion prevention and mitigation
# Dust explosion venting
# Dust explosion isolation
# ATEX dust explosion risk assessment
# ATEX safety of milling systems
# ATEX safety of pneumatic transport systems
# Big Bag Handling Safety
# Rotary Equipment Safety



Energy Savings Spray Drying handbook
To come soon
Milling handbook
To come soon
# Energy savings tips



Process Engineer's Tools (beta)

Process Engineer's Tools is a subsite of www.powderprocess.net widening the ressources available to the whole Process Engineering art. The subsite is still in development, new pages are uploaded every month !

Pumps Piping Compressors
# Pump performances - characteristics
# Pump performances - modification of the characteristics
# Pump Head
# Pump Power
# Pump NPSH
# Cavitation
# Pump operation in parallel or series
# Friction factor - Churchill equation
# Friction factor - Colebrook equation
# Fanning and Moody friction factor
# Flow Regime
# Fluid Velocity
# Restriction Orifice calculation
# Equivalent length valves and fittings
# K coefficients valves and fittings
# Hydraulic Diameter
# Hydrostatic Pressure
# Torricelli formula
# Reynolds Number
# Friction factor
# Pipe pressure drop calculations
# Valves CV
# Valves flow characteristics
# Compressors power
# Compressor temperature elevation
# Reciprocating compressors capacity


Vacuum systems Electrical Engineering Thermodynamics
 In Development
In Development
Vapor pressure


Air Psychrometrics
Safety
Data, Diagrams and calculation tools
# Absolute Air Humidity
# Relative Air Humidity
# Humid Air Specific Heat Capacity
# Humid Air enthalpy
# Air Viscosity
# Dust Explosion physical characteristics
Molecular weight
Isentropic coefficients
Valve flow characteristics calculation

Engineering Excel calculation tools (beta)

Disclaimer : all these tools are only aiming at illustrating the content of the website, THEY CANNOT BE USED for DETAIL DESIGN, always link with a reputable supplier for detail design

Pneumatic conveying - Dilute Phase - Air only method

Pneumatic conveying - Dilute Phase - Rhodes method

Pneumatic conveying - Dilute Phase - Zenz Othmer method

Pressure drop Excel calculation tool for incompressible flow

Pressure drop Excel calculation tool for compressible flow, non choked

Cyclone design calculation tool

About us

PowderProcess.net has been built specifically for the professional having to deal with industrial Powder Processes, either regularly or occasionally

The content is built from the expertise of the author who has 10 years of experience in the field of Process Engineering and especially Powder Processes

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You can contact us at the following email address : powder.process@protonmail.com

You can : ask technical questions, make suggestion, signal problems or need of correction of the articles