Application of mechanical seals in sugar industry

Sugar industry - this is one of the many branches of the food industry, which is engaged in the production of sugar from sugar beets.

Trouble-free compaction equipment - an important factor for optimum efficiency and environmental equipment, given the relatively short time of the season. Earlier pumps syrup for crystallization of sugar and charring advantageously equipped with double seals. Today, thanks to the introduction of new advanced materials and modifications seal chamber geometry, it is possible to use a single seal.

Single seals are used in pumps of washing water, beet pumps for unloading of beet and its transportation on a sink. The wash water contains a large amount of sand and earth, so the seal must be strong and highly wear-resistant materials pairs friction. It is best to meet these requirements single seal NM-1, operating mode without washing.

Pumps for pumping syrup (sugar content 70 - 75%) of the evaporator at boiling station, successfully completed tandem seals with flushing liquid without pressure.

Tandem seals are also equipped with circulation pumps for syrup used in a multi-stage evaporator unit. In this apparatus, carbonated juice is evaporated in stages to a condensed juice (sugar content 70 - 75%).

Double seals with a counter ring, screw mixers used in the cooker for the crystallization of sugar by mixing the massecuite (with 45% content of sugar crystals).

Recommended types of seals for a sugar industry:

- mechanical seals with rubber bellows (single, tandem and double seals);

- mechanical seal with protected spring;

- mechanical seals with rotating counter ring (single spring, isolated from the product);

- double mechanical seals for mixers with counter ring rotating in the product.