DOSERAY

STOREGE -  DOSING -  CONVEYING

 

Sultan Makina Ltd.Sti.

+90-226 353 21 21

info@doseray.com          TURKISH ROTARY VALVE turkish

venturi eductor

VENTURI EDUCTOR

Blower venturi conveying

venturi conveyor

VENTURI

WHAT IS THE VENTURI EDUCTOR - VENTURI CONVEYING?

Venturi Eductors are commonly used for pneumatically conveying material particles in the dilute phase. This type of system creates two effects: the suction in the feed inlet and the positive pressure that pushes the particles into the conveying system. The eductor introduces a driving air from a source into a nozzle. This would eventually result in a vacuum in the suction feed that will draw the particles into the eductor. The particles are driven by the compressed air and passed through the diffuser,and finally discharged into the conveying system.
Eductors are an efficient way of feeding particles like powders, flakes, abrasives, bulk solids, and other granular particulates. With this type of system, maintenance cost is greatly lessened through the elimination of the conventional rotary objects used in this application. Rotary valves do not perform well in conveying materials with very fine and abrasive textures and that is why venturi eductors work best for these applications.venturi conveyor, venturi conveying

Another advantage of this type of conveying method is that it eliminates the Blowback effect caused by using rotary airlocks/ rotary valves. Blowback may cause several problems in the system and these are the wear problems when conveying fine or abrasive particles, housekeeping problems, and explosion hazards. In addition to this, eductors also eliminate the harmful effects a rotary valve may cause a product, thereby minimizing the damage and degradation of the conveyed particles

silo discharge material


Custom Engineered Designs
Venturi Eductors
Venturi Eductor economical method to convey powdered or pelletized materials.Properly designed venturi eductor systems are reliable and require little maintenance. The systems are most valuable in conveying applications when the material is transported at arate less than 6000#/hr and over combined vertical and horizontal distances of up to 300 feet in totallength.Venturi eductor systems are positive pressure dilute phase pneumatic systems that can convey a variety of bulk solids materials. The venturi eductor replaces the rotary valve that is normally used as an airlock and feeds material into the pneumatic conveying line. The problem sencountered when using rotary valves,like air blow back and pellet clipping,are eliminated with the venturi eductor.

 

PDF brochure bigbag

HOW DOES IT WORK VENTURI EDUCTOR?


Eductors use the vacuum created by the venturi to introduce the bulk solids into the conveying line. Technological advances realised by DOSERAY will allow you to use an affordable air source provided either by a regenerative blower or a positive displacement blower while conveying without the need for a rotary airlock.

TeSting is available in our lab with your products. Our eductors are fully refundable should you not be totally satisfied with its performance.

 

venturi conveying

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In the dilute phase pneumatic conveying with eductors the Venturi effect is exploited in order to obtain a double effect: it creates a negative pressure at the feed inlet from which the material is sucked and then pushed into the line pressure (pull-push).

Dilute pneumatic conveying eductors
This results in a system with no moving parts and characterized by a fast installation and subStitution that makes this solution among the most economic both as an investment and in terms of maintenance costs.

The range of available Venturi Eductors is very large and makes this handling system compliant with the most varied kinds of materials and industrial processes.

However, it is of the utmost importance that the system is designed remaining in the operational limits to maximize the benefits of this technology, without causing operational difficulties and unnecessary energy costs.

FOOD PROCESSING INDUSTRY

The food processing industry uses venturi eductor based pneumatic conveying systems to drive milk and non-dairy powder spray dryers. They are also used to transport products in processes that include.

 

CHOOSING THE BEST CONVEYING METHOD WHEN BUILDING NEW PLANT
Engaging experienced design experts is ideal when implementing the installation of a pneumatic conveying system within a new plant. They can help determine if the system can work with venturi eductors from the start. This will avoid having to retrofit the plant later if it was wrongly designed at first with rotary valves or electric pumps.

venturi eductor design

 


Venturi Conveyor Benefits


For example when at the discharge from a micro doser is important not to negatively affect the dosage, as in the case of back pressure generated by air leakage through a rotary valve, in the classic dilute phase pressure conveying.

Or when to download a big bag is advantageous to suck from the empty big bag to prevent loss of material in the environment on the occasion of subStitution, while maintaining a transfer of product via pneumatic pressure Conveying.

Finally we mention one of the most effective applications of use of this technology, the discharge from a cyclone separator, again thanks to the suction Venturi effect, which increases the performance of dust abatement up to 100% efficiency.
Continuous conveying
• No blow-back
• No rotary airlocks – No mechanical shearing
• No maintenance
• No Moving Parts
• Air pressure from 0,2 to 0,9 Bar
• Environmental protection
• Easy to be installed on exiSting plants

usage as

Pneumatic eductors are used in high temperature process, pneumatic conveying systems,dust control equipment, and as volumetric feed-control.

 

 

 

  • Lebels: venturi eductor, venturi conveying, venturi ejector, venturi pneeumatic conveying, venturi transfer
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