The dry substance content had increased due to a certain process at a waste water treatment plant. Since then, faults had occurred at several points in the pump due to solids accumulating and blocking the pumps. The blockages were causing frequent damage.

After successfully conducting different tests, they opted for the Boerger Multicrusher for dealing with the primary sludge. The Multicrusher was installed on the suction side of the two primary sludge pumps which transfer the sludge alternately.

Operating safely chopping performance and the reasonable wear parts were decisive in convincing the waste water treatment operator. Since the Multicrusher was installed, the primary sludge pumps have been running smoothly.

Technical data

Contaminated sludge is delivered by tanker to a waste water plant which is then treated in the facility. The sludge is conveyed under pressure from the tanker into the plant. Due to the very low pressure, solids in the sludge persistently stick in the pipe line and cause it to block.

To chop these solids and prevent more blockages, the operator of the waste water treatment plant installed a Boerger Multicrusher. The Multicrusher is mounted on a hand cart and equipped with a small rock trap for extracting non-floating solids (such as metal parts) and is connected between the tanker and treatment plant.

Since the operator has been using the Boerger Multicrusher, there have been no more incidents due to pipe blockages when discharging from the tanker.

Technical data

A treatment facility was experiencing persistent problems with a rotary pump in a pumping station.

The communal waste water is collected in a sedimentation tank. Here the heavier solids fall to the bottom and are removed. A rotary pump conveys the waste water from the tank to a water treatment facility. However, the waste water still contains solids in the medium that kept blocking the rotary pump. A solution was needed. A Börger Multicrusher was chosen and installed between the sedimentation tank and the rotary pump. Since the Multicrusher has been installed, pump downtime caused by solids has not occurred.

Technical data

Highly viscous sludge deposits had to be removed from a tar pit. The problem with the pump systems already in use was the fluctuating viscosity of up to 50,000 mPas due to the temperature and the sometimes very large particles contained in the sludge. Both these factors kept causing the pumps to block.

The solution was the Boerger double-pack consisting of a  Multicrusher  and a Rotary Lobe Pump. The two units were combined in one frame and both operated using a single hydraulic motor. The entire unit is ATEX compliant and is operated immersed in the pit.

Technical data

In the cement industry, many different materials and substances are used to fire the furnaces. A Japanese cement manufacturer fires its rotary kilns by incinerating fish. In fact, this is the by-product and remains of fish which are not sold and not economically viable.

The fish have to be chopped so that they can be burned effectively. The Japanese cement manufacturer was looking for a chopper to do this. After performing various tests with products, they decided on a Boerger Multicrusher. 

The customer was impressed with the excellent chopping yield and particularly with the Multicrusher's ease of maintenance. Wear parts could be replaced by the customer's in-house maintenance staff directly at the installation site without dismantling any pipe or drive systems.

Technical data