Alix Automation System

Kalwa, Thane, Maharashtra

Dilute Phase (Lean Phase) Pneumatic Conveying System can be used for Dry Powders and Granules. There is  a wide variety of Materials that can be conveyed with this system. Be it powder of any mesh or Granules of around 5 to 10 mm sizes. Any material that needs to be conveyed with Pneumatic Conveying System should be Dry and Free flowing in the first place. In some cases of free flowing powder, moisture content up to 15% can also be transferred by this system, It is not advisable to use it if the material has high moisture level or if it is sticky. 

Conveying systems operate on the principle that the solids will be suspended in the conveying line air stream. This is achieved by feeding material in controlled quantity into a air stream. Generally velocities are greater than 20mtr per second and material to air ratios are up to .10 to 1. Material conveyed will be separated from air stream through Cyclone & Bag filter.

Commonly Conveyed products : Products commonly conveyed in Dilute phase systems include Pharmaceutical Powder, speciality chemicals powders, flours, resins and compounds, ground feeds, and granular and pelletized products. In many cases, the product needs to be evaluated based on process needs to final system selection to ensure the desired results can be achieved.

pneuONVEYOR System Design :  Pressure, vacuum, combination vacuum/pressure and vacuum sequencing are the common types of Dilute phase systems. The Carrying gas is typically generated by a positive displacement blower with pressure capability ranging from 0.1 to 0.8 Kg/ Sq CM. Pressure systems generally use a rotary airlock as a feed device. A vacuum system simply needs a product flow control device such as a probe box or screw feeder, although rotary airlocks are commonly used.

Our different modular families of Vacuum Conveyors for the Pharma, Chemical and Food-Industry allow customized modifications of all conveyors regarding the individual application. Even critical materials can be conveyed safely and adapted conveyors can be used for hazardous applications like inside explosion areas or with highly toxic materials.

Most of our conveyors are used in applications with conveying capacities from 100 kg/h up to 3 t/h, where the conveying distance is up to 15 m far and 10 m high. Realized systems have up to 12 t/h capacity and work with conveying distances up to 80 m far and 35 m height.

MAJOR COMPONENETS OF THE SYSTEM

Feeder Rotary AirLock Valve:This Feeds the material into the conveying Line. It is most important component in the System. The size of this Rotary Airlock Valve is responsible for capacity limitation. It should be properly selected. Higher size will lead to chocking of the system. Smaller size will lead to reduced capacity of the system Pickup

Nozzle or Ventury:This is responsible for lining up the material into the conveying pipeline to be fluidized in the system. It is here that the material is fluidized and starts its journey.

Conveying Ducting:It is the main pipeline that conveys the material to the discharge point. Care should be taken to have shortest root during designing the layout.

Dust Collector:It separates the Fluidized material from air. The air separated is vented our from the Blower. It filters the air and material giving out clean air.

Discharge Rotary Airlock Valve:It discharges the material collected in the Dust Collector. Without this Rotary Airlock Valve system cannot run. It is installed below the Dust Collector.

Other Optional Equipment:

In place of a Dust Collector a cyclone separator can be used. It’s outlet will be dusty. Hence it cannot be used when powders are conveyed. In some places Suction Blowers are used to smooth the air flow. When material is directly Discharged into silo. the Discharge Rotary Airlock Valve is installed below silos. When Multiple Discharge Points are to be catered, Diverter valves are used. A control Panel is also need to control all the motors and have necessa

Tubular Chain Drag Conveyor design acts as a universal joint during product transportation in the pipe which enables a single conveyor to achieve directional changes in multiple planes, including 90 degree turn. Conveyor system includes many accessories such as Brush Assembly or Chain Knockers for cleaning of the chain, Drop Bottom or Slide Gate Valves for immediate discharge of the product, or a Turn Station which replaces 90elbows to reduce wear and tear on the discs & chain. The Tubular Chain Drag Conveyor is the best solution for material handling applications. Available in 4, 6, 8, 10 & 12 dia.

Available in Carbon Steel Construction, Stainless Steel Construction, and Clean-In-Place Systems for Food & Pharmaceutical Applications. Application details:- The tubular drag chain conveyors gentle handling makes it ideal for moving friable and other delicate materials without degradation and for transferring blended materials with minimal segregation. When properly equipped, the conveyor can handle highly abrasive or hot materials and safely transfer foods and other sanitary materials. The enclosed conveyor reliably contains dusty and hazardous materials. The enclosed design also enables the conveyor to resist internal pressure build up caused by explosions and to contain propagating flame, making the conveyor suitable for handling potentially explosive materials. This conveyor isnt suitable for handling a material containing rocks larger than 1.5 inches in a vertical conveying arrangement or in a configuration with multiple turns. More about the components Chain- The chain can be constructed of carbon steel or stainless steel. Several chain designs are available to suit various material characteristics and operating requirements. Individual links in the chain function like universal joints, allowing the chain-and-disc assembly and the material it conveys to bend and move through multiple directions and planes. Discs- The discs are mounted at regular intervals along the chain by various methods and can be made of ultrahigh molecular-weight polyethylene (UHMW-PE), polyurethane, cast iron, or other materials to suit the application. The disc design can also be adapted to the application. For instance, some discs have a cost-saving split design with two semicircular halves, allowing maintenance workers to replace only the bottom (material-contact) half when the discs are worn. UHMW-PE discs for food-grade applications can be moulded to stainless steel chain to form an integral part of the chain. Other discs are available in oversize diameters or with squeegee-type edges to promote full cleanout of sticky materials from the conveyor. Chain-tensioning mechanism- The conveyor is equipped with some type of chain- tensioning mechanism to take up slack in the chain and adjust for tension changes caused by friction, flow rate changes, variations in air and material temperatures, chain and disc wear, and other factors. Keeping the proper chain tension minimizes wear to the conveyors chain, discs, and housing, reducing production downtime and maintenance costs. Depending on the conveyor manufacturer, the chain-tensioning mechanism can be a manually adjusted take up located near the drive or idler assembly, or it can be an automatic device incorporated into the idler assembly, which then serves as both an idler and an automatic, continuous chain tensioned. Some take ups and the automatic tensioning device also keep the chain in the return line under slight compression (that is, slightly loose) to facilitate cleaning material off the chain and to eliminate frictional drag on the chains return line, which reduces wear on the chain & discs. Available options :- The tubular drag chain conveyor can be operated under pressure or vacuum. To handle a potentially explosive material, the conveyor can be purged with inert gas, such as nitrogen, and it requires less inert gas for this purpose than a pneumatic conveyor of comparable size