Menu
Dense phase pneumatic conveying often uses compressed air to push dense slugs of product along the line. It typically uses pressures less than 60 PSIG but pressures can potentially be much higher. Because compressed air is pushing material along versus keeping it suspended in the pipe, air velocities are typically less than 2000 FPM.
Get price
Dilute phase; Dense phase; If the mass flow ratio is low, the system is said to operate in dilute phase. Whereas, if the mass flow ratio is high, the system is said to operate in dense phase. If the mode of operation of a system is in dilute phase, the probable range of mass flow ratio is 0 - 15. The dense phase system operates at mass flow ...
Get price
Dense phase is also operated at a much lower velocity than dilute; typically around 700-1,500ft/min. Materials that are more than 55-60lbs per cubic foot are good candidates for dense phase conveying. However there are exceptions such as cement. While cement is 95 lbs per cubic foot, it is also a fine material that moves well in an air stream.
Get price
Jan 19, 2021As the name implies, dense phase conveying involves tightly packed bulk material particles, such as dog kibble, frozen veg, powders, and plastic pellets. In the dense phase, the product isn't suspended in the air because it's either too heavy or very abrasive. The velocity of the air current is also kept high (100kPa or higher).
Get price
Pneumatic Conveying Utilize dense phase conveying technology for: Fragile materials Abrasive materials Mixed batch (homogenous blends of powders) Long distances Low velocity conveying (high tonnage, slow flow) Convey line air injection to control product velocity Dense phase means high powder to air ratios Washdown Clean-In-Place (CIP)
Get price
Dense Phase Conveying Figure 18.7 illustrates the case of a dense phase conveying system. The minimum conveying air velocity that must be maintained for the material is about 6 m/s, and 10 m3 /min of free air is available to convey the material. The conveying-line inlet air pressure is 4 bar gauge.
Get price
Dense phase Pneumatic Conveyors Dense phase Pneumatic Conveyors are something contrary to dilute phase conveyors, as they use high pressing factors and low speed to move items inclined to breakage. The material is stacked into a pressing factor vessel, where high pressing factors power material into the passing on line to its destination.
Get price
The dense phase system will be designed to move material in a strand, slug or fluidized mode depending on the nature of the material and the plant configuration. The dense phase conveying method is typically capable of higher conveying rates and longer conveying distances. Read more Benefits & Features Low energy consumption
Get price
As compared to the LEAN Phase Systems, Dense Phase Conveying uses high pressured air to convey bulk or powder material through closed pipe and deliver to the collection points The solids movement style in the piper categorizes the Dense Phase Pneumatic Conveying Systems in to 2 types, namely - Continuous Type & Plug Type.
Get price
Dense Phase Pneumatic Metal Chip Conveying System. In addition to dilute phase vacuum and pressure pneumatic metal chip conveying systems used for handling dry chips, National also supplies dense phase pneumatic conveying systems. This technology offers the advantage of being able to convey either wet or dry metal chips with equal effectiveness.
Get price
Dynamic Air Pneumatic Conveying Systems. Pneumatic Conveying Systems and Components +1-651-484-2900. info@dynamicair. Home; About Us; Systems ... HDP 2000 Fluidizing Concept™ Dense Phase Pressure System HDP 3000 Conventional Concept™ Dense Phase Pressure System. HDP 4000 Full Line Concept™ Dense Phase Pressure System ...
Get price
Nol-Tec is a market leading expert in the field of bulk materials handling with pneumatic conveying. This video gives you a brief overview of what dense phas...
Get price
This mode of conveying, "Dense Phase", minimises the air usage required to move large quantities of powder by maintaining high conveying mass ratios. This means smaller pipelines can be utilised, and smaller pipes require less conveying air, and this has a direct impact on power costs. Dense Phase is the most efficient mode of pneumatic conveying.
Get price
The dense phase pneumatic conveying is a system particularly adapted to very abrasive materials. Palamatic Process offers the procedure Macawber/Mactenn that uses the Inflatek® valve in order to transfer the material to the powder handling manufacturing line. This dense phase pressure conveyor system is suitable for very abrasive product, at ...
Get priceDense Phase Conveying. Dense phase pneumatic conveying is described as the process of pushing (pressure) or pulling (vacuum) particles that aren't suspended in the conveying air. The densely transported materials are transferred at high pressure and low velocity or speed. The two main types of dense phase conveying are listed and described below:
Get price
Dense phase pneumatic conveying - Dense phase conveying, on the other hand, moves material at a lower velocity in a non-suspension mode. They utilize high pressure and low velocity to move products prone to breakage. The material is loaded into a pressure vessel, where high pressures force material into the conveying line to its destination(s). ...
Get price
The BART-ONE Dense Phase Conveying systems pneumatically convey products at high flow rates at around 25% of the speed of lean phase blow conveying, resulting in reduced pipe wear, less product stratification (keeping mixed products together) and reduced energy consumption. Distances up to 70m. Capacities from 3 to 20 ton/h. Pressure up to 6 bar.
Get price
By definition, dense phase pneumatic conveying simply means using a small amount of air to move a large amount of bulk material In closely associated slugs through a conveying line, much like extruding.
Get price
Advantages of Pneumatic Dense-Phase Conveying Systems The maximum-density convey technique has three main advantages. First, because the convey pipeline is packed densely with bulk material, air cannot "slip" past the material, a common source of inefficiency in pneumatic conveying systems. If the slip is eliminated, efficiency improves.
Get price
The sizes go from 24 ltrs up to 4.000 ltrs vessels capacity. These conveyors can be supplied both in dense phase with a cleaning cycle after each launch or in extra-dense phase for fragile products or products' mixing. They can also be equipped on load cells for the material weighing before transport or supplied in Atex classified version.
Get price
Dense phase conveyors are equipped to handle the transportation of larger materials, and thus do not feature a vacuum or compress air mechanisms. In a dense phase conveyor, objects slide along the bottom of the conveyance channel instead of being agitated and suspended inside it. This conveyor type works best with abrasive or fragile materials.
Get price
Dense Phase pneumatic conveying is extremely flexible in terms of the routing and the length of the pipeline. The main application fields of pneumatic conveyors are feeding operations of mixers, reactors, packaging machines, and every similar application that requires to handle powders, granules, flakes, and dry bulk.
Get price
Dense Phase Pressure Conveying Systems generally use compressed air at above 1 Bar g to push materials from a Pressure Vessel (also known as a sender unit or pressure pot) through a pipeline to the destination where the air and product are separated by a filter or other system. The product extrudes through the pipeline, initially at low ...
Get price
DILUTE vs DENSE PHASE PNEUMATIC CONVEYING Pneumatic conveying has two distinct methods, Dilute Phase and Dense Phase. Knowing when to apply each method typically involves product testing and a well-experienced individual. Not all materials are alike and not all materials move the same way when transferred through piping.
Get price
Pneumatic conveying of bulk solid materials through pipelines has been in use for over one hundred years. There are two distinctly different flow modes in pneumatic conveying, dilute-phase and dense-phase. Dilute-phase is used widely in industry due to its simplicity in design and operation.
Get price
Dense phase pneumatic conveying systems can be used to transport a large range of bulk materials, both in the form of powders or granules. They can reach distances longer than 500 metres and capacities over 100 t/h. The low conveying speed used in dense phase pneumatic systems helps preventing the material degradation and preserves the product quality and integrity.
Get price
Dense-phase vacuum has a limitation on conveying distance — 60 to 90 meters (200 to 300 feet) — based on the energy that can be produced by a vacuum blower or pump. This method is also very well suited to fragile and/or sticky materials because the material is pulled through the convey line rather than pushed, as in a pressure system.
Get price
A trial is organized to design an industrial dense phase pneumatic conveying line for a material that is sensitive to breakage. The industrial line must be able to convey 8 t/h, the pipe layout is 50 m including 15 m vertical and has 5 bends. The design needs to know the following :
Get price
What Dense Phase Conveying is: Dense phase pneumatic conveying is a material handling process used across a variety of light and heavy industries. It allows for the transport of materials through enclosed pipelines, from one silo to the next.
Get price
The conveyor systems are planned on an efficient, modular basis, and we tailor the most efficient solution for your product and your specific requirements. We also offer various bypass systems for the dense phase conveying of such powdered bulk materials as carbon black and silica, ensuring slow, gentle pneumatic transport.
Get price
Pneumatic conveyor types are defined based on what kind of material is moveable and their source of airflow; the three main pneumatic conveyor types are dilute phase, dense phase, and semi-dense phase conveyors, where each can be pressure or vacuum-driven. This section will break down each of these categories to show where each one works best ...
Get price
What is pneumatic conveying? Pneumatic conveying is the movement of solids through pipe using gas (usually air) as the motive force. It differs from hydraulic or slurry conveying in that the gas expands continuously along the pipe length. The flow regime in the pipe depends greatly on the ratio of solids to gas and the particle characteristics.
Get price
Semi-Dense Phase Pneumatic Conveyors. This type of conveying system utilizes a medium velocity airflow to transport materials. To put it simply, it's essentially the middle ground between dense and dilute pneumatic conveyors. They move faster than the former but are still usable with some abrasive, friable materials like cement. Semi-dense ...
Get priceThe spec. of the conveying system. the density is. 5t/m3. the size is 20% < .5mm, 80%<=1mm. The capacity 60t/h. horzontal lengh 160m. vertical lengh 30m. approximately: elbow90/ 5pcs. elbow45/ 4 pcs. I would be very appreciate if someone can give me some instruction on that issue. 20th November 2005, 10:02 #4.
Get price
The true dense phase velocity range is between 1,400 to 4,500 feet per minute. The velocity selected is based on the physical characteristics of the material, capacity, conveying distances and line size. In the low velocity dense phase regime, the material nearly fills the convey line and is extruded through the conveying pipe.
Get price
Pneumatic conveyor in diluted or in dense phase under high vacuum so as not to demix or damage the product. The filtration units are easily removable for cleaning and are interchangeable according to the MOCA directive 1935/2004. Electric vacuum or pneumatic pumps depending on the needs of the systems and possible classified areas according to ...
Get price
Clyde Pneumatic Conveying uses true low velocity non-suspended dense phase mode of conveying. This is the most efficient form of pneumatic conveying and uses the least amount of air to convey the material. The air to material ratios can be between 25 - 200 depending on the material and conveying distance.
Get price
Fluorite Powder Dense Phase Pneumatic Conveyor Fly Ash Handling Pump Description Dense-phase pneumatic conveying system has a longest conveying horizontal distance of 2200m and a height of 30m; the maximum conveying capacity of a single unit is 300 t/h; ...
Get price
It must be realized that low velocity, dense phase, conveying in conventional pneumatic conveying systems is strictly limited to materials that have the necessary bulk properties of good air retention or good permeability. The use of high pressure air is not synonymous with dense phase conveying.
Get price
A tank that holds compressed air obtained from the system's air compressor in a dense phase pneumatic conveyor system. Arching A no-flow condition in which material forms a stable arch (bridge) across the bin. Atmospheric Pressure The amount of force the atmosphere exerts upon the earth's surface. Air in a pneumatic conveyor with pressure ...
Get priceCopyright ©2000- CCM MINERALS CO.,LTD.
