Transmission mechanism of dense-phase loader

Abstract

The invention discloses a transmission mechanism of a dense-phase loader and a catalyst dense-phase loading device. The transmission mechanism of the dense-phase loader comprises a feeding hopper, an upper cover, an upper cylinder, a falling flange, a lower cylinder and a bearing bracket. Materials enter a space formed by the upper cover, the upper cylinder, the falling flange and the lower cylinder from the feeding hopper by the gravity and form a material storage layer in the space; the transmission mechanism drives a turntable to rotate; and the materials in the rotating process are thrown off by centrifugal force to form an even material plane in a reaction container. The transmission mechanism is driven by a motor, a gear 13 is mounted on a motor output shaft; a shaft II is fixed on a motor seat; a gear 10 which can freely rotate is mounted on the shaft II; a shaft III is fixed by a fixed bearing mounted on the upper cover and a pair of bearings mounted in a bearing seat of the bearing bracket and can freely rotate; the gear 13 on a motor shaft drives a gear 8 to rotate by the gear 10; and the shaft III transfers rotation and torque to the turntable at the lower end, and the turntable carries the materials to be rotatably discharged.

Description

technical field [0001] The invention relates to the technical field of catalyst loading for fixed-bed reactors in the petrochemical industry, in particular to a transmission mechanism for a catalyst dense-phase loader. Background technique [0002] The catalyst dense-phase filling device used in the prior art is generally a distribution device for bulk material shipment. For example, CN101168409A is installed at the bottom of the funnel to transport bulk materials to vertical containers or silos, and is driven by pneumatic drive to drive 1-2 A horizontally rotating spreading disc spreads the bulk material evenly. Because the air motor is used as the rotating power, the motor is wrapped by the catalyst in the silo, and the catalyst is thrown out through the throwing disc driven by the motor. The dense-phase filling device of this structure rubs against the motor wall during the falling process of the material. This friction directly causes the torque loss of the motor. In en...

AI Technical Summary

Problems solved by technology

The dense-phase filling device with this structure rubs against the motor wall during the falling process of the material. This friction directly causes the torque loss of the motor. In engineering, it is often unable to start normally due to insufficient torque of the motor (in some cases, manpower is required. Assistance), friction will also cause a high temperature rise of the motor, and the heat generated by the motor itself is not easy to dissipate; the dust generated by the material is very easy to enter the air motor through the gap between the motor and the transmission parts, and the above situations will cause the motor to operate abnormally (Increased resistance, reduced speed, unable to guarantee long-term work), or even damaged beyond repair

The motor is driven by compressed air, the torque is low when starting, and the rotation speed of the turntable is greatly affected by the change of air pressure, and the speed has irregular fluctuations

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