Cleaning method of filter press

Abstract

The invention discloses a cleaning method of a filter press. The method comprises the steps of arranging a drug inlet pipeline valve on a mud inlet pipeline of the filter press, arranging a flange blind plate at an outlet of a filtrate pipeline, and arranging an exhaust valve and a reflux pipeline valve on the filtrate pipeline above the filter press; in a state that the filter press is pressed, opening the drug inlet pipeline valve, the exhaust valve and the reflux pipeline valve, and sending a cleaning reagent pump into the filter press until drug liquid flows outside from a reflux pipeline; then, closing the drug inlet pipeline valve and the reflux pipeline valve, and soaking for 8-24h; loosening a filter plate, emptying the cleaning reagent, and cleaning the residue attached on the filter plate, a filtrate hole and a piece of filter cloth by a high-pressure water gun. After the cleaning method is adopted, the matter which is attached on the filter plate and the filter cloth of the filter press and is difficult to dissolve and clean can be cleaned once, so that a great deal of labor force and time can be saved, the labor intensity of operators can be lightened, and the process is simplified; the cleaning method is capable of prolonging the service lives of the filter plate and the filter cloth of the filter press as well as other accessory equipment.

Description

technical field [0001] The invention relates to the technical field of filter presses, in particular to a cleaning method for filter presses. Background technique [0002] As an ideal suspension solid-liquid separation equipment, the filter press has been more and more widely used in the field of industrial production. However, there are problems that the filter plate and filter cloth of the filter press are easy to block and difficult to clean during the application process. In order to ensure the good filtration performance of the filter press, the filter plate and filter cloth of the filter press must be thoroughly cleaned regularly. The reasons for the clogging of the filter plate and filter cloth of the filter press are very complicated, and it is difficult to use conventional methods. For example, if the filter press is equipped with an automatic high-pressure cleaning device, it is difficult to clean it thoroughly. [0003] The conventional cleaning method currently...

AI Technical Summary

Problems solved by technology

The reasons for the clogging of the filter plate and filter cloth of the filter press are very complicated, and it is difficult to use conventional methods. If the filter press is equipped with an automatic high-pressure cleaning device, it is difficult to clean it thoroughly.

[0003] The conventional cleaning method currently used is: use the automatic high-pressure cleaning device attached to the filter press to clean it 1 to 2 times a day, but if the cleaning is not thorough, the filter plate and filter cloth will still be slowly blocked. The automatic high-pressure cleaning device attached to the machine will have no effect

At present, the method of thoroughly cleaning the filter plate and filter cloth of the filter press is: remove all the hundreds of filter cloths on the filter press, put them in a container and soak them in chemicals for 2 to 3 days, and then clean them with small high-pressure cleaning equipment. After cleaning piece by piece, put them back together; the residual blockage in the filter plate groove of the filter press should also be cleaned piece by piece, and the filtrate hole should be dredged; the disadvantage of this cleaning method is that the filter cloth needs to be disassembled and assembled , the operation is very cumbersome and complicated, and it takes 8 to 10 people 10 hours to complete the cleaning of the filter plate and filter cloth of a plate and frame filter press. This cleaning method is time-consuming and laborious.

[0004] Thorough cleaning cycle of the filter plate and filter cloth of the filter press: Due to the different filter media, the cycle of thorough cleaning and the difficulty of cleaning will be different, such as: 20 days to 30 days for the filter press in the field of sludge treatment The filter plate and filter cloth need to be thoroughly cleaned once to ensure the good filtration performance of the filter press. The cleaning frequency of the filter plate and filter cloth is very high. come big trouble

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