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Belt filter press treatment efficiency is low due to lack of mud

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Belt filter press treatment efficiency is low due to lack of mud

Date of release:2018-04-11 Author:龙粤环保 Click:

The reason why the filter press treatment efficiency is low due to mud:

First, the impact of process factors on the processing capacity of the belt filter press The influence of the process factors on the belt filter press is comprehensive in many ways:

Second, the selection of flocculants: At present, polyacrylamide (PAM) is the most widely used flocculant in the field of sludge dewatering, PAM can be divided into cationic, anionic and non-ionic, and each ion can be divided into many Molecular weight. Therefore, different types of PAMs should be selected for different processing media. After the qualitative selection, quantitative selection must be made. Otherwise, the purpose of improving the treatment volume cannot be achieved, and sludge dehydration may not be performed at all.

III. Selection of coagulation aids for belt filter presses: Sewage treatment in different industries or sludge dewatering with different treatment media. The flocculating agents used in belt sludge dewatering equipment are different, and sometimes it is necessary to add necessary coagulation aids. .

IV. Concentration and dosage of chemical agents: The specific types and models of pharmaceutical agents are determined. Tests are to be conducted to compare the concentrations of dissolved substances, added amounts with dehydration effects, and operating costs. The final determination is that the operating costs are relatively low and the dehydration effects are relatively highest. Good, relatively largest processing index.

5. Whether or not the drug-dissolving device can ensure that the time and aging state of the drug are optimized, and that the continuous productivity of the belt filter press can be fully utilized. Whether the drug-adding device can ensure that the molecular chain of the drug is not destroyed and the activity of the drug is not inhibited Degradation, so that the sludge formed enough to withstand a certain pressure floes, etc., are all process factors.

Sixth, the design of the merits of the belt filter press processing capabilities.

Gravity dewatering zone: The flocculated sludge enters the gravity dewatering zone first, and most of the free water produced by flocculation needs to be removed in this zone. Therefore, the gravity dewatering zone is one of the main factors affecting the processing capacity of the belt filter press. In the gravity dewatering zone of belt-type sludge dewatering equipment, flocs are deposited on the filter belt, and free water needs to be removed through the filter through the flocs, which adds a great burden to the limited gravity dewatering section. In order to maximize the efficiency of the area, the size of the whole machine and the length of the gravity dewatering zone should not change.

VIII. Wedge-type dewatering zone: With the operation of the filter belt, the sludge enters the wedge-type dewatering zone. The wedge-type zone of the belt-type sludge dewatering device combines the dual functions of gravity dewatering and press dewatering. Therefore, the wedge-shaped zone is also influential. One of the main factors of the processing capacity of the belt filter press.


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Key word:带式压滤机,带式污泥脱水设备,洗沙污泥脱水机

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