Four-shaft stirring decomposition tank

Abstract

The invention discloses a four-shaft stirring decomposing tank which comprises a tank body (1) and stirring devices (6), wherein a tank cover (3) is arranged at the upper end of the tank body (1); a lifting pipe (5) and four stirring devices (6) are arranged inside the tank body (1); the upper ends of the stirring devices are connected with the tank cover (3); the lower ends of the stirring devices are fixedly arranged on a baseplate (10) of the tank body (1); foot leg components (7) are arranged under the baseplate (10); a cleaning door (8) is arranged on the lateral side of the lower part of the tank body (1); the lower ends of the stirring devices (6) are connected with base bearings (9); a motor (4) is arranged on the tank cover (3); the motor (4) is connected with stirring shafts of the stirring devices (6) through flanges; the stirring devices (6) are provided with multiple layers of blades; four baffles (2) are uniformly arranged inside the tank body (1); the baffles (2) form inverted 'Y' shaped structures. The four-shaft stirring decomposing tank is applied to stirring work of a large decomposing tank, is stable and efficient to run, and meets the technological requirements of large-scale aluminum oxide production.

Description

technical field [0001] The invention relates to a decomposition tank for alumina production. Background technique [0002] In alumina production, the purpose of the decomposition tank is to decompose the leached ore pulp in stages. The agitation of the decomposition tank should not only satisfy the sufficient mixing and suspension of the slurry but also not damage the growth of the seed crystal. The maximum size of decomposition tanks widely used in alumina production lines at this stage is Φ14X37m. With the development of large-scale alumina production lines, decomposition tanks with a size of Φ14m can no longer meet production needs. It is necessary to develop diameters of Φ16m~20m or even larger Decomposition tank, the stirring type of decomposition tank is single-axis MIG type at this stage, and the maximum blade diameter is 10m. If the diameter of the decomposition tank is increased, the diameter of the propeller will increase accordingly. At present, it is difficult ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a four-axis agitated decomposition tank for stirring large-scale decomposition tanks, so as to overcome the difficulty of meeting the actual accuracy requirements of the large-diameter blades in the prior art in manufacturing, processing and installation. , transportation, maintenance and replacement difficulties and other deficiencies

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