{"id":3518,"date":"2017-12-21T07:57:40","date_gmt":"2017-12-21T07:57:40","guid":{"rendered":"https:\/\/engineernewsnetwork.com\/blog\/?p=3518"},"modified":"2017-12-21T09:16:28","modified_gmt":"2017-12-21T09:16:28","slug":"precision-flow-control-for-efficient-accurate-pneumatic-conveying-systems","status":"publish","type":"post","link":"https:\/\/www.engineernewsnetwork.com\/blog\/precision-flow-control-for-efficient-accurate-pneumatic-conveying-systems\/","title":{"rendered":"Precision flow control for efficient, accurate pneumatic conveying systems"},"content":{"rendered":"

Pneumatic conveying provides an effective, enclosed transport system for manufacturing, handling and processing applications where small particles, grains, pellets and powders are required.<\/p>\n

These flexible transport systems offer a number of handling advantages over more conventional mechanical systems as well as being able to deliver precision flow control.<\/p>\n

Modern environmental control standards can be difficult to maintain when working with powders and small particles as part of a manufacturing process.<\/p>\n

One of the most effective solutions is to use pneumatic conveying, which also offers a number of benefits when compared to more traditional methods.<\/p>\n

* Reduced maintenance, due to the lack of moving parts<\/p>\n

* Improved operational environment with no dust thanks to the fully enclosed design<\/p>\n

* System flexibility that allows for multiple drop points and considerable transfer distances<\/p>\n

* The possibility to carry out physical mixing or chemical reactions during the conveying process<\/p>\n

* The ability to convey air-sensitive materials using an inert gas, such as nitrogen, to prevent oxidation<\/p>\n

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Pneumatic conveying provides an effective, enclosed transport system for manufacturing, handling and processing applications where small particles are required<\/figcaption><\/figure>\n

Pneumatic conveying is used by a wide range of industries including food and beverage, pharmaceutical, chemical and power generation.<\/p>\n

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The Type 8750 flow rate controller from B\u00fcrkert delivers a closed loop control, using pressure sensors and a control valve, all combined into a single unit<\/figcaption><\/figure>\n

The main challenges for those operating a pneumatic conveying system are keeping the consistency of the product and maintaining a precise controllable flow of the product.<\/p>\n

However, the modern manufacturing enterprise must also operate as efficiently as possible and this means reducing costs and improving productivity.<\/p>\n

Effective and precise process control can have a major influence on manufacturing efficiency but in the past this could provide a significant challenge to those with pneumatic conveying systems.<\/p>\n

One recent innovation from B\u00fcrkert<\/a><\/span> uses a closed loop controller, pressure sensors and a control valve, all combined into a single unit.<\/p>\n

The Type 8750 flow rate controller provides an automated air flow control solution that can reduce operating costs and improve productivity through better flow control and management of the compressors.<\/p>\n

The flow rate control system is supplied as a complete assembly that negates the requirement for a separate flow meter.<\/p>\n

Using the pressure difference across the valve and the given density and temperature of the medium, a nominal flow can be calculated, providing the flow characteristics of the valve to the process controller.<\/p>\n

One example of this system delivering benefits to a production process involved a company that manufactures tyres and uses carbon black, a fine powder, as part of the process.<\/p>\n

The powder is conveyed from a storage tank to a mixer using a dense phase pneumatic system.<\/p>\n

The tyre manufacturer selected the Type 8750 flow control because it is able to maintain a consistent dense phase transport method, while using compressor energy efficiently.<\/p>\n

Furthermore, when the pipes needed to be emptied, a very high flow rate was required and the Type 8750 was also able to achieve this.<\/p>\n

Due to the compact nature of the B\u00fcrkert flow rate controller it is simple to install in-line and can be easily integrated into the existing process control infrastructure.<\/p>\n

From both a mechanical and an electrical perspective this innovative product is designed for simplicity, accuracy and reliability.
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