During the use of the special sludge pump for filter press, the pressure will not be pumped and the pressure will be insufficient. After this situation, the material in the filter chamber of the press will be insufficient, the water content will be high, and the pressing speed will be affected. , increase the pressing time, if such a problem occurs, the cause and solution should be found out in time, so as not to affect the production efficiency.
The pressure of the special pump for the filter press is insufficient and cannot be pumped. The reasons should be found from the following aspects
1. The working conditions of the filter press should be checked. Since the filter press is a complete system, the interior is a closed environment during work. The pool pressure in a certain link will cause insufficient system pressure. The items to be checked mainly include whether the filter cloth is With anti-moisture and hydraulic system
Whether there is oil leakage, whether there is material leakage at the seal
Secondly, check the pipeline and gate valve, including the inlet pipeline of the filter press and the inlet and outlet valves of the filter press pump, mainly to check whether the pipeline is damaged, whether the gate valve is fully opened, and whether there is any leakage. 3. Check the working condition of the special pump for the filter press to see if there is any clogging. The clogging will lead to insufficient flow rate and slow flow rate, which will affect the pressure and material supply. In addition, for newly installed pumps, it should be checked whether the speed is too low and the power of the motor is too small, both of which will cause this phenomenon. For special pumps, there is generally no problem with power conversion. It is necessary to check whether the impeller is seriously worn and whether there is leakage in the seal of the pump. Special feeding pump for water washing
4. After the problem is found, it should be solved in time. If the pressure is insufficient and the pressure cannot be applied again, it should be further checked to see if there are multiple leakage points or various reasons for this situation.
What are the filtration characteristics of the special feed pump for water washing sand of the filter press feed pump?
What are the filtration characteristics of the feed pump of the filter press:
Feeding stage: The filter chamber of the filter press is empty at the beginning of feeding and needs to be filled with materials quickly. (YBH pump feeds large flow to quickly fill the filter press)
Boost stage: When the steam compressor is filled with material, the pressure starts to rise, and the compressor quickly discharges water. At this time, the compressor still needs to feed with a large flow. BH pump low pressure, large flow rate remains constant, feed passes quickly, as the feed pressure gradually increases, the filter cake in the press begins to form and thicken, the water output of the filter press begins to decrease from large to small, and the capacity of the filter press also changes from large to small. Small, the amount of feed decreases accordingly. (BH pump output flow automatically changes from large to small, hydraulic system, no overflow, energy-saving operation starts.) Special material pump for water washing
Filter press feed pump pressure maintenance and filtration stage: filter pressure of filter press rises to a certain level Pressure, the feed pressure is required to maintain the national pressure for filtration, and the filtration capacity of the filter press is further reduced until the filtration is completed.
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