Cylinder-cone filter press-cone filter and washing two-in-one working principle
Cylinder-cone filter press-cone-shaped filter and washing two-in-one cone or cylinder is equipped with multi-layer orifice plates and filter media to form a filter device, and the interior is equipped with a stirring shaft and variable-angle variable-lead spiral stirring The device is used to stir, lift and scrape the material during filtering, and automatically push out the filter cake during unloading. This machine can carry out vacuum filtration or pressure filtration. During the filtration process, the scraper in the machine continuously scrapes the filter cake on the filter screen, so that the material is filtered under the condition of a thin layer of filter cake, and the filtration rate is very high.
If the material needs to be washed, the slurry can be filtered and dried in the machine first, then add the washing liquid, and use the scraper, agitator and extrusion screw in the machine to re-slurry the filter cake, and then pressurize or The reslurry is filtered into a filter cake by vacuuming. In this way, re-slurry filtration is repeated many times to wash the materials thoroughly, and finally all the filter cakes are extruded out of the machine.
1. Pressure filtration or vacuum filtration
Feed the solid-liquid mixture crystal slurry produced by the upstream reactor or crystallization equipment into the tank of the three-in-one equipment, open the lower filtrate outlet, and feed compressed air or nitrogen into the equipment to add the reacted solid-liquid mixture. Press and filter until the material in the machine is pressed dry.
Vacuum can also be drawn at the outlet of the filtrate to vacuum filter the material until the filtrate is drained. When filtering, the hollow shaft and the hollow screw belt can be rotated clockwise (viewed from the top) to lift the material, and the hollow screw belt can limit the thickness of the filter cake layer when rotating, so that the material is in a thin filter cake Filter under layer conditions to increase the filtration rate. For materials that are easy to filter, it is not necessary to stir when filtering, and the materials are directly filtered to dryness.
2. Can be washed and filtered many times
After some materials are filtered, they need to be washed several times. The reaction, filtration and drying multifunctional machine is an ideal equipment for repeated washing of materials. After the material is dried in the machine, the washing liquid can be added to the top washing liquid inlet, Then, through the stirring of the hollow shaft and the hollow ribbon, the filter cake is evenly repulped, and the repulp is stirred evenly before the material is pressed dry.
If washing once is not enough, it can be washed several times. At this time, the above steps can be repeated many times. The operation is convenient and the labor intensity is extremely low.
Washing materials in the above method is called batch washing method. Since the material is pressed dry and then washed with washing liquid, although the valves are opened and closed a little more times during operation, less washing liquid is used.
The machine can also continuously wash the materials, that is, continuously press the washing liquid with a pump or other methods, and use the pressure of the washing liquid to filter, while the hollow shaft and the hollow ribbon are continuously stirred, and the filtrate is continuously discharged from the filtrate outlet until Until the washing requirements are met, the filter cake is then pressed dry. This continuous washing method generally uses more washing liquid than intermittent washing, but it is more convenient to operate.
Cylindrical Cone Filter Press-Conical Filter Washing 2-in-1 Technical Features
(1) Fully enclosed system, the operating environment is quite good, especially suitable for filtering and washing toxic, flammable and explosive dangerous products and delicious food biological products, pharmaceuticals and biological products that do not allow pollution.
(2) Continuous operation with extremely low labor intensity. The operation is flexible, and the operation cycle can be adjusted by adjusting the filter pressure difference, rotation speed, screw extrusion lead, etc., so as to adapt to the change of process conditions.
(3) It can not only concentrate, but also press filter.
Especially when it is necessary to wash the material, the material can be concentrated first, and thoroughly washed in the suspension state, and then press-filtered, which can reduce the handling of the material, reduce waste, and do not need to re-pulp during washing. The product quality is very high.
(4) The machine can form a very thin filter cake on the surface of the filter medium or filter under the condition of no filter cake. The filtration rate per unit filter area is very high, so the equipment is small and compact.
(5) The materials can be repeatedly filtered and washed conveniently, so that the functions of multiple unit equipment can be completed on one machine, so that the equipment cost, floor area, labor intensity, energy consumption, etc. are greatly reduced.
At the same time, the combination of cylinder-cone filter and wash is especially suitable for high washing requirements, and the filtered materials need to be repeatedly repulped and washed, and can save washing liquid.
(6) Make the material undergo pressure filtration under higher pressure, and vacuum filtration can also be carried out. A jacket is added to the outside of the filter to heat, cool or heat-preserve and filter the material to meet the requirements of various process conditions.
Cylindrical Cone Filter Press Conical Filter Washing 2-in-1
Technical Data Sheet