Full-automatic continuous filtering and filter pressing slag unloading machine

Abstract

The invention relates to a full-automatic continuous filtering and filter pressing slag unloading machine comprising a filtering device, wherein the filtering device comprises a filter cartridge, a filtering stirring shaft and a first filtering medium; a liquid inlet is arranged on the top end of the filter cartridge; the filtering stirring shaft is installed in the filter cartridge through a sealing bearing, and a helical blade is arranged on the filtering stirring shaft; the first filtering medium is arranged between the inner wall of the filter cartridge and the filtering stirring shaft; a liquid outlet is arranged on the bottom end of the filter cartridge; and a press filtering device, the press filtering device comprises a press filter cartridge, a press filtering stirring shaft and a second filtering medium; a slag inlet is arranged on the top end of the press filter cartridge, and the slag inlet is communicated with the liquid outlet; the press filtering stirring shaft is installed in the press filter cartridge through a sealing bearing, and a helical blade is arranged on the press filtering stirring shaft; the second filtering medium is arranged between the inner wall of the press filter cartridge and the press filtering stirring shaft; and a slag outlet is arranged on the bottom end of the press filter cartridge, and an automatic resetting switch is arranged at the slag outlet. The full-automatic continuous filtering and filter pressing slag unloading machine provided by the invention can be conducted with continuous pressure filtration, can automatically feed and automatically discharge and unload slag and is consistently located at a thin layer filtering environment, so that the filtering speed is high, and the machine is operated under a complete sealed state, and the operation environment is excellent.

Description

technical field [0001] The invention relates to a filter press device, in particular to a fully automatic continuous filter press filter unloader. Background technique [0002] At present, there are many types of conventional filter presses produced in my country and other countries in the world, such as plate and frame filter presses, box filter presses, leaf filter presses and tubular filter presses. These devices all have certain deficiencies. If they cannot be operated continuously, the filter must be opened when the filter cake is to be unloaded. When encountering materials such as solvents, the solvents are easy to volatilize into the air, which will affect the human body and the surrounding environment. It is not suitable for flammable, explosive, poisonous or highly toxic dangerous products and delicious food, biological products and medicines that are not allowed to be polluted. In addition, when the filter cake is unloaded, the filter cake is often mixed with the r...

AI Technical Summary

Problems solved by technology

[0005] 1. This machine is used for filtering large quantities of materials. When the slurry is always filled with the whole filter, the effect is very good, but when a batch of slurry is filtered and there is no more filtered slurry to replenish, the accumulation in the filter The entire pot of slurry in the machine cannot be processed. At this time, the material can only be filtered by adding compressed air or compressed gas at the top or vacuuming the filtrate outlet of the cylindrical collection chamber. The progress of the process and the decline of the slurry liquid level, the filter area of ​​the cylindrical part is getting smaller and smaller, and the filtration is getting slower and slower. The more serious problem is that when there is no filtered slurry in the upper part of the cylindrical filter medium, the gas will directly Go through the filter medium and take a short circuit to run away from the filtrate outlet pipe, which wastes compressed gas on the one hand, and at the same time it is difficult to establish the necessary filtration pressure, and the filtration effect is very poor

[0006] 2. Since the filter screw of the lower cone filter press part and the upper stirring ribbon share the stirring shaft, if the stirring speed is increased to enhance the filtering effect, the power consumption will be large, and the filtering cost will inevitably be too high

[0007] 3. Using the agitating ribbon to scrape off the filter cake to limit the thickening of the filter cake to increase the filtration speed will inevitably require a small interval between the agitating ribbon and the filter medium, which will make the processing more difficult and the manufacturing cost of the equipment will increase sharply At the same time, the small interval also makes the stirring speed unable to be further increased, resulting in low filtering effect

[0008] 4. In order to improve the filtration efficiency, it is necessary to require external power to provide power pressure. Generally, high-pressure feeding is required, resulting in a sharp increase in filtration costs

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