Automatic bag overturning and discharging device of lower discharging centrifugal machine

Abstract

The invention relates to an automatic bag overturning and discharging device of a lower discharging centrifugal machine, which comprises a main shaft, a main shaft drive device for driving the main shaft to rotate and a hub cap and a rotary basket which are arranged on the main shaft, wherein filter cloth is arranged in the rotary basket, a first support capable of moving up and down is sleeved on the external part of the hub cap, the lower part of the first support is connected with a push plate support, a rotatable rotating frame is arranged on the push plate support, the middle of the rotating frame is hinged with the push plate support, the external end of the rotating frame is placed on the push plate support, a pressure ring is sleeved on the external part of the first support, the inner end of the rotating frame is actively connected with the pressure ring and can slide in the pressure plate, the lower end of the filter cloth is connected with the rotating plate frame, a vertical sliding plate is arranged on the hub cap, the sliding plate penetrates through the first support and a baffle is arranged on the upper end of the sliding plate, and the baffle is arranged above the pressure ring. The automatic bag overturning and discharging device of the lower discharging centrifugal machine has the advantages of simple structure, convenience for use, simpleness and convenience for maintenance. Through a mechanism capable of moving up and down and a mechanism capable of overturning to the axis direction of the centrifugal machine, the automatic bag overturning and discharging device of the lower discharging centrifugal machine realizes completely cleaning of the filter cake on the filter cloth.

Description

technical field [0001] The invention relates to a discharge device in a centrifuge, in particular to an automatic bag-turning discharge device for a lower discharge centrifuge. Background technique [0002] The automatic unloading centrifuges commonly used in China are generally scraper unloading centrifuges. In the existing scraper discharge centrifuge, because the distance must be set between the scraper blade and the filter cloth to ensure that the scraper blade does not scrape the filter cloth, resulting in residual filter cake. [0003] During the separation process of many materials, the residual filter cake blocks the filter cloth, which has a great impact on the subsequent separation, resulting in a greatly reduced filtration speed and efficiency, or even failure to filter. The residual filter cake must be cleaned manually frequently, which is a cumbersome process and is not conducive to the health of workers. [0004] Therefore, the problem of cleaning the residua...

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Problems solved by technology

[0003] During the separation process of many materials, the residual filter cake blocks the filter cloth, which has a great impact on the subsequent separation, resulting in a greatly reduced filtration speed and efficiency, or even failure to filter

The residual filter cake must be cleaned manually frequently, which is cumbersome and not conducive to the health of workers

[0004] Therefore, the problem of cleaning the residual filter cake has been puzzling users, manufacturers and experts.

At the same time, the scraper driving device of the scraper centrifuge is installed on the cover plate of the shell, which increases the weight and height of the shell, which leads to the increase of the center of gravity of the centrifuge, which is easy to cause vibration when the centrifuge is working

There are also relatively large restrictions on the overall installation height of the centrifuge

Moreover, there are many pipelines to control the movement of the scraper, which is complicated

The scraper driving device, if combined with the bag pulling device that has appeared in recent years, complicates the overall structure of the centrifuge and the operation process is cumbersome

At the same time, there are more pipelines controlling the movement of the scraper and the pipelines of the bag pulling mechanism, which are more complicated

[0005] In view of the above reasons, many customers are often forced to choose hanging bag centrifuges with complex and cumbersome operations, which require the help of electric hoists and manual operations.

[0006] In recent years, a scraper centrifuge with a pull bag discharge device has appeared, which can remove part of the residual filter cake by changing the inclination of the filter cloth, but due to the limitation of the inclination of the filter cloth, the residual filter cake cannot be completely removed , the clogging of the filter cloth can not be completely improved

At the same time, the requirements for the material and drawing quality of the filter cloth are relatively high, and the failure rate is also high.

[0007] The horizontal bag-turning centrifuge that appeared in foreign countries in the past few years has not been widely promoted because of its complex structure, high price, perishable filter bags, small and single model, and narrow application.

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