Horizontal type scraper discharge centrifuge capable of achieving filter cake thickness controllability

Abstract

The invention provides a horizontal type scraper discharge centrifuge capable of achieving filter cake thickness controllability. The horizontal type scraper discharge centrifuge comprises a rack, a drum, a discharging hopper, a scraper, a driving shaft, a PLC, a precise air cylinder, a piston rod, a guiding rod and guiding wheels; the drum is rotatably installed on the inner side of the rack through the driving shaft; the scraper is installed on the inner side of the rack in a limiting mode and located on the inner side of the drum; the guiding wheels are fixedly installed at the two ends ofthe scraper; one end of the scraper is fixedly connected with one end of the guiding rod, the other end of the guiding rod is hinged to the piston rod, and the piston rod is driven by the precise aircylinder; the PLC is fixedly installed on the outer surface of the rack; the precise air cylinder is electrically connected with the PLC; and the discharging hopper is fixedly installed under the scraper and communicates with the outer side of the rack. According to the horizontal type scraper discharge centrifuge capable of achieving the filter cake thickness controllability, the structure is simple, centrifuge filter cake layer thickness controllability can be achieved, filter cloth damage can be avoided, the production efficiency of enterprises can be improved, and the production cost can be reduced.

Description

technical field [0001] The invention relates to the technical field of chemical production equipment, in particular to a horizontal scraper discharge centrifuge with controllable filter cake thickness. Background technique [0002] At present, in chemical production, solid-liquid mixture materials are usually separated by centrifuges. Commonly used centrifuges are mainly divided into filter centrifuges and settling chamber centrifuges. The filter centrifuge also includes the filter centrifuge, which mainly uses the drum and the filter cloth to centrifuge the solid-liquid mixture. The liquid penetrates the filter cloth, and the solid material remains on the surface of the filter cloth. Finally, the material on the surface of the filter cloth is scraped by a scraper. out. [0003] With the improvement of the degree of automation, the material on the surface of the filter cloth is usually automatically scraped off by the scraper device, and the scraper moves through the contro...

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Problems solved by technology

[0003] With the improvement of the degree of automation, the material on the surface of the filter cloth is usually automatically scraped off by the scraper device, and the scraper moves through the control of the cylinder and the lever structure. Since the filter cake is attached to the surface of the filter cloth, the scraper is easy to damage the filter cloth during the scraping process. This will not only cause the material to not be completely collected, but may also cause the material to enter the solvent recovery device, pollute the recovery solvent, and damage the filter cloth will also increase the production cost of the enterprise

[0004] At present, the methods to solve this problem mainly include: by increasing the distance between the scraper and the filter cloth, although the problem caused by the damage of the filter cloth can be solved, a large amount of filter cake residue will greatly reduce the yield, and the recovery of the filter cloth also exists. Difficulty, the difficulty of cleaning the recycled filter cloth will also increase; by adding sensors, elastic buffer devices and control units, although the problems of filter cloth damage and yield reduction can be solved at the same time, the cost of equipment increases and the difficulty of later maintenance of equipment increases. The volume of the equipment becomes larger, and when there is a problem with a certain part, the filter cloth will also be damaged

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