|信息来源： 液位变送器 | 2020-06-02 点击量： 1654|
The flange type liquid level transmitter applies the pre-treatment / plate and frame type filter press of the deep sludge pressure filtration dehydration system, whose working principle is to squeeze through the plate and frame, so that the water in the sludge is discharged through the filter cloth, so as to achieve the purpose of dehydration. It is mainly composed of concave filter plate, frame, automatic pneumatic closing system, side plate suspension system, filter plate vibration system, air compression device and filter cloth high-pressure washing device, with huge volume. In order to achieve the effect of pressure filtration and dehydration, plate and frame type sludge filter press needs to add iron salt and lime as additives, which undoubtedly increases the cost of sludge pressure filtration, and increases the sludge, and then carry out sludge dehydration. After sludge dewatering and pressure filtration, manual operation is needed to deal with the waste on the filter cloth. The labor intensity of workers is high and the work efficiency is low.
/The flange type liquid level transmitter applies the pretreatment / flange type liquid level transmitter of the deep sludge pressure filtration dehydration system, which is suitable for the high temperature, suspended solids and other severe working conditions, and can avoid the leakage, freezing and blocking caused by the configuration of the pressure pipeline. In addition, it has the advantages of high reliability, good linearity and easy adjustment. Therefore, it is widely used in the liquid level measurement of chemical production, but with the extension of service time, the most likely problem of this kind of liquid level transmitter is the linearity variation, which affects the measurement accuracy, so it has a very positive significance to solve this problem
The discharging cleaning device includes: filter cloth barrel, grabber, filter cloth barrel seat, supporting roller, reducer of supporting roller car, reducer of drum, separable coupling, cleaner, cleaning water pipe, second funnel, tension supporting roller, pressing supporting roller, change direction supporting roller, drum motor, unloading workbench, first funnel, track of supporting roller car, supporting roller car and filter roller conveying device;
The unloading table is connected with a filter roller conveying device; the two sides of the unloading table are connected with a roller car track, the roller car is located on the roller car track, and the roller car is connected with a roller car reducer, a cleaning water pipe, a tension roller and a compression roller; the lower part of the compression roller has a corresponding direction changing roller, and the direction changing roller is fixed on the unloading table;
The flange type liquid level transmitter is pretreated by the deep sludge pressure filtration dehydration system / in actual use, the general instrument technicians can pay attention to the careful use, and rarely the above failures occur. Most of the reasons for the non-linear working characteristics of the transmitter are due to the leakage of filling liquid in the capillary. In general, the sealing of filling liquid is very good. If the transmitter is used correctly, the leakage is very small and the linearity is OK within 3-6 years. If the service time is longer, due to the long-term accumulation of small leakage, the filling liquid will be too little, sometimes the sensing diaphragm depression can be seen obviously, so that the transmitter loses linearity and is not available. The other is due to the instrument technician's failure to pay attention to the working temperature. Let's take a look at the characteristics of several commonly used filling fluids
The flange type liquid level transmitter is pretreated by the deep sludge pressure filtration dehydration system / the first funnel and the second funnel are respectively connected at both ends of the unloading workbench, and the sweeper is respectively connected above the first funnel and the second funnel; The unloading table is connected with the filter cloth barrel seat, which is located between the tracks of the roller carrier. The filter cloth barrel seat is installed on the filter cloth barrel seat. The input shaft of the filter cloth barrel is connected with the drum reducer through the separable coupling, and the input shaft of the drum reducer is connected with the drum motor;
The cleaner and the cleaning water pipe are located on the running track of the filter cloth, and the supporting roller is also connected on the running track of the filter cloth.
The sludge unloading device occupies a small area, realizes the mechanized automatic removal of sludge from the filter cloth, and at the same time carries out water spray cleaning on the filter cloth, greatly improving the working efficiency and reducing the labor intensity of the workers.
The flange type liquid level transmitter applies the deep sludge pressure filtration dehydration system to pre-treatment / solve the problem that the existing technical plate and frame type pressure filter needs manual operation to deal with the sludge on the filter cloth after sludge dehydration and pressure filtration, the labor intensity of workers is large, and the working efficiency is low. Through multiple tests and long-term pressure maintaining, the data are unchanged and the linearity is good, It is proved that the method of filling silicon oil after vacuumizing at room temperature is practical and feasible.
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