When the filter cake needs to be washed, there are clear flow one-way washing and two-way washing, dark flow one-way washing and two-way washing.
A. The clear flow one-way washing is that the washing liquid enters sequentially from the washing liquid inlet hole of the thrust plate, passes through the filter cloth and then passes through the filter cake, and flows out from the non-porous filter plate, at which time the liquid discharging nozzle of the orifice plate is closed. In the state, the outlet nozzle of the non-porous plate is open.
B. The clear flow two-way washing is that the washing liquid is washed twice from the washing liquid inlet holes on both sides above the thrust plate, that is, the washing liquid is washed from one side and then from the other side, and the outlet of the washing liquid is the same as the inlet. The direction of the corner, so it is called two-way cross washing.
C. The dark flow unidirectional flow is that the washing liquid enters the perforated plate from the washing liquid inlet hole of the thrust plate, passes through the filter cloth and then passes through the filter cake, and flows out from the non-porous filter plate.
D. The undercurrent two-way washing is that the washing liquid is washed twice from the two washing liquid inlet holes on both sides above the stopper plate, that is, the washing is first washed from one side and then washed from the other side, and the outlet of the washing liquid is diagonal. Direction, so it is also called undercurrent two-way cross washing.
(3) Filter cloth: filter cloth is a kind of main filter medium. The selection and use of filter cloth have a decisive effect on the filtration effect. When selecting, it should be selected according to the pH value of the filter material, solid particle size and other factors. Material and pore size to ensure low filtration cost and high filtration efficiency. When using, ensure that the filter cloth is not flat and the aperture is smooth.
Plate and frame filter press:
1. Intermittent pressure filtration equipment for solid-liquid separation of various suspensions.
2. The chamber filter press was developed after the 1960s.
Its characteristic is high filtration pressure, the highest pressure has reached 4.5MPa; the single-machine filtration area is large, and 2050 square meters of products have been introduced abroad. The domestic maximum filtration area has reached 2000 square meters. The filter cake contains low liquid content. The moisture content of the cake can be reduced by 5% to 15%; the corrosion resistance is good, the filter plate can be made of various reinforced plastics, light weight, good elasticity, corrosion resistance, wide adaptability; low running cost, can achieve multiple continuous Job, online control. Modern filter presses are mostly based on vans.
A. The clear flow one-way washing is that the washing liquid enters sequentially from the washing liquid inlet hole of the thrust plate, passes through the filter cloth and then passes through the filter cake, and flows out from the non-porous filter plate, at which time the liquid discharging nozzle of the orifice plate is closed. In the state, the outlet nozzle of the non-porous plate is open.
B. The clear flow two-way washing is that the washing liquid is washed twice from the washing liquid inlet holes on both sides above the thrust plate, that is, the washing liquid is washed from one side and then from the other side, and the outlet of the washing liquid is the same as the inlet. The direction of the corner, so it is called two-way cross washing.
C. The dark flow unidirectional flow is that the washing liquid enters the perforated plate from the washing liquid inlet hole of the thrust plate, passes through the filter cloth and then passes through the filter cake, and flows out from the non-porous filter plate.
D. The undercurrent two-way washing is that the washing liquid is washed twice from the two washing liquid inlet holes on both sides above the stopper plate, that is, the washing is first washed from one side and then washed from the other side, and the outlet of the washing liquid is diagonal. Direction, so it is also called undercurrent two-way cross washing.
(3) Filter cloth: filter cloth is a kind of main filter medium. The selection and use of filter cloth have a decisive effect on the filtration effect. When selecting, it should be selected according to the pH value of the filter material, solid particle size and other factors. Material and pore size to ensure low filtration cost and high filtration efficiency. When using, ensure that the filter cloth is not flat and the aperture is smooth.
Plate and frame filter press:
1. Intermittent pressure filtration equipment for solid-liquid separation of various suspensions.
2. The chamber filter press was developed after the 1960s.
Its characteristic is high filtration pressure, the highest pressure has reached 4.5MPa; the single-machine filtration area is large, and 2050 square meters of products have been introduced abroad. The domestic maximum filtration area has reached 2000 square meters. The filter cake contains low liquid content. The moisture content of the cake can be reduced by 5% to 15%; the corrosion resistance is good, the filter plate can be made of various reinforced plastics, light weight, good elasticity, corrosion resistance, wide adaptability; low running cost, can achieve multiple continuous Job, online control. Modern filter presses are mostly based on vans.
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