Coal-to-oil catalysis kettle and stirring mechanism thereof

Abstract

The invention provides a coal-to-oil catalysis kettle and a stirring mechanism thereof. The stirring mechanism comprises a first shell, stirring blades, a main shaft, a second shell, a speed reduction device, an iron rotor, a permanent magnet rotor and a motor, wherein the second shell is divided into a cooling bin and a speed reduction bin through a partition; a shaft sleeve is mounted in the cooling bin; one end of the shaft sleeve is connected with the partition, and the other end of the shaft sleeve is connected with the side wall, which faces to one side of the first shell, of the speed reduction device; the first end of the main shaft is inserted into the first shell; the main shaft is pivotally connected with the first shell; the stirring blades are mounted at the first end of the main shaft; the second end of the main shaft penetrates through the shaft sleeve and is connected with the output end of the speed reduction device; the output end of the motor is connected with the permanent magnet rotor; the permanent magnet rotor is located on the outer side of the second shell; the iron rotor is connected with the input end of the speed reduction device; the iron rotor is arranged at a position, which corresponds to the permanent magnet rotor, of the speed reduction bin. According to the stirring mechanism, by the adoption of the speed reduction device, the magnetic coupling torque is increased; furthermore, the cooling bin is used for cooling a bearing, so that the service life of the bearing is prolonged.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a coal-to-oil catalytic kettle and a stirring mechanism thereof. Background technique [0002] The chemical reaction of coal raw materials in the coal-to-oil catalytic kettle requires high pressure and high temperature conditions, and at the same time requires mechanical stirring. In order to transmit the power to the kettle without leaking, in the prior art, bearings with high temperature resistance and high pressure are mostly used. This kind of bearing has extremely high processing precision, so it is very expensive, and wears extremely fast under the penetration of coal powder. The use cycle is short, and even so, it cannot be completely leak-free. Another solution is to use magnetic coupling direct drive, and this solution requires a large torque to drive the stirring of pulverized coal, so the magnetic coupling method is often not possible, and the bearing damage rate is a...

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Problems solved by technology

[0003] The invention provides a coal-to-oil catalytic kettle and its stirring mechanism to solve the problems in the prior art that the stirring torque during magnetic coupling is low and the bearing needs to withstand high temperature so that the service life of the bearing is affected

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