Spiral conveyer structure for horizontal centrifugal machine

Abstract

The invention relates to a horizontal centrifugal spiral transmitter, being a pin pointed spiral vane, which is made of purifying and drying vanes, the form pitch being S=delta(a constant), the latter pitch being S=delta-K (deltais a constant, K is a constant or a constantly adding variable and less than delta). The movement path of the dry vane outer circle on the surface vertical to the projected face of the spiral shaft line can be Archimedian screw. Through pitch changing technique, space for slag going through is greatly reduced than the equal pitch one, with the deposited slag forced outside by the radial centrifugal force, and the squeeze force of the spiral conveyer to both shafts, sludge can be better squeezed and dried, with better separation effect.

Description

technical field [0001] The invention relates to a screw conveyor structure of a decanter centrifuge. Background technique [0002] The decanter centrifuge is a separation machine that relies on the density difference between the solid and liquid phases, and under the action of centrifugal force, accelerates the settling speed of solid phase particles to achieve solid-liquid separation. The decanter centrifuge has the characteristics of continuous operation, large processing capacity, less power consumption per unit output, and strong adaptability; the structure, performance, and parameters of the decanter centrifuge have also changed greatly during decades of development. The quality and production capacity are continuously improved, the application range is wider, and it has a good development prospect. [0003] With the needs of modern environmental protection and the development of three wastes treatment, the requirements for dehydration treatment of industrial wastewate...

AI Technical Summary

Problems solved by technology

[0005] In the design of today's decanter centrifuges, the spiral generally adopts equal pitch, and the equal pitch design technology of the screw conveyor adopted, although the space for the sediment to pass through the spiral drying section becomes smaller, the trend of the space becoming smaller is too slow. As a result, its settling effect is greatly reduced; especially for materials that are difficult to separate or when the solid content of the material is low, the water content of the dewatered sludge of the decanter centrifuge is too high, and it is difficult to meet the requirements of the sewage treatment plant.

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