What are the reasons why the filter belt of the filter press is not clean?

Filter presses are suitable for suspensions with high or almost incompressible slag steam
.

The solid particle concentration of the suitable suspension is usually less than 10%, and the operating pressure is usually 0.
3 ~ 0.
6 MPa, especially up to 3 MPa or more
.

In order to save costs, some sludge dewatering rooms use manual dosing configuration, the amount of powder is too large, and the concentration of drug configuration is too high
.

There are many reasons why the filter belt of the filter press is not clean, if the water pressure is insufficient, it is recommended to replace the pump model
.

When replacing a high head pump, it is recommended to replace the high-flow nozzle to clean the filter belt
.

If there is a flocculent residue, it will directly clog the filter cloth hole, which will seriously affect the water permeability and air permeability
of the filter belt.

The reasons for residue are as follows: 1.
When preparing the polymer, the concentration is too high or the drug is too much
input.

2.
When using the pipeline static mixer, the reaction time of the liquid is too short or the contact between the liquid and the sludge is insufficient
.

3.
Because the stirring time of the polymer is too short, the drug cannot be completely dissolved
.

In general, polymers can be completely dissolved
after more than 30 minutes of stirring.

If the time is too short, some drugs will remain, clogging the filter, and thus wasting the drugs
.

The precautions for the daily maintenance of the filter press are as follows: 1.
Check whether the connections are firm, whether the components and machines of the filter press are intact, and whether there is abnormal rotation or noise
.

2.
Irregular inspections should be carried out on bearings, piston rods and trolley runways; Add lubricating oil to ensure good
lubrication performance.

The above parts should be kept clean
.

3.
The electronic control system should be regularly tested for insulation and reliability, especially whether the sensitivity of the proximity switch is normal
.

4, the maintenance of the hydraulic system: mainly to check the sealing of hydraulic components and connections, to see if there is leakage, and regularly replace the hydraulic oil
.

It is strictly forbidden to bring water or other debris into the hydraulic oil tank
.

5.
Each shift should clean the filter cloth once to ensure that there is no residual filter cake on the sealing surface of the filter plate; Improve filtration efficiency
.