[P3674] Mactenn Installation Case Study:

Sodium Bicarbonate Conveying System, Northwich, UK.

In brief:

The dense phase pneumatic conveying system was supplied to convey 14 t/h of sodium bicarbonate over a distance of 8m horizontal and 30m vertical. The system is a 228 liter Maxflo with a 125mm pipe line and is located under a feed hopper with start and stop controlled in automatic by the feed hopper and silo reception level probes. The system was first installed in November 1996. In July 2014 after 17 years of continuous daily operation it was upgraded with a touch screen operator interface, new filling Inflatek® Valve and air manifold. The vessel and pipe line remain originals and are in very good condition expected to offer many more years of service. The pipe line, bends, and vessel are made from stainless steel 304 with all external surfaces coated in a corrosive resistant clear lacquer.

Maxflo installed below a feed hopper
Material Characteristics:

Sodium Bicarbonate            106um Mean                       

Bulk Density                        1060 Kg/m³

Temperature                        40°C

Moisture Content                  0.1%

Condition                             Free Flowing


System Objectives:

1. Dense phase low velocity conveying

2. Low material degradation

3. Reliable operation


System Performance:

Transfer Capacity               14 t/h           

Conveying Distance            8m Horizontal and 30m vertical           

Reception Points                1 feed and 1 reception point.


Improvements Achieved:

1. Cost savings in terms of energy savings and reduced maintenance

2. Increased transfer rate

3. Reduced compressed air requirements

4. Lower than specified material degradation

5. High reliabilty

6. Low maintenance

7. Fully integrated into control room DCS


New system control panel



Final refurbishing assembly



Outlet air nozzle with proprietary air flow valve


To find out more information please contact Mactenn