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Why the ERTH Centrifuge is Different Than Current Centrifuges
The effectiveness of any centrifuge depends on two factors: the centrifugal force generated by spinning; and the residence time of the material under the separating force. The magnitude of centrifugal force generated depends on the radius from the axis of rotation to the most distant spinning point and the speed at which the system is rotated. Current centrifuge technology uses a spinning drum, the radius of which is limited by physical conditions, such as size. To generate a given amount of centrifugal force, the smaller diameter radius that is typical of current industrial centrifuges must be driven at higher speeds to achieve the required separation results, therefore, increasing energy use, wear and maintenance. Typical maintenance of current centrifuges requires them to be returned to the manufacturer. The revolutionary design of the ERTH Centrifuge, with two opposing arms rotating around a center axis, has a larger radius than that of current centrifuges, and can attain better separation with lower speed of revolution. The result of this is that the ERTH Centrifuge uses less energy and requires less maintenance, most of which can be done by operators in the field.
In many centrifuge applications, polymers are used to aggregate small particles into larger ones to assist the separation of solid particles from the liquid, and polymer is often a significant cost of operation. Current centrifuge technology inserts these aggregated particles into a rapidly spinning drum, which shears the aggregated particles into smaller pieces and reduces the efficiency of separation. Because the ERTH Centrifuge utilizes a closed hydraulic system, the aggregated particles are inserted at the center of rotation, where there is very little shear, and this low shear environment is preserved through the flow path to the point of maximum force at the end of the arm. This means that the ERTH Centrifuge can achieve separation using less polymer, resulting in lower operating costs.
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