The choice of filter must be selected according to the concentration of the suspension, the solid particle size, and the viscosity of the liquid. Suspensions have a great impact on the efficiency of the filter. If the choice is not appropriate, the efficiency will be several times different and even wear the machine. How to choose a suspension? Firstly, the filter funnel experiment is used to determine the filtration speed of different filter media and different pressure difference, the solid content of the filtrate, the thickness and moisture content of the filter residue layer, find the appropriate filtration conditions, preliminarily select the filter type, and then according to the treatment. The amount of filtration is selected and verified by actual tests. Zui's new development of new filtration equipment includes: mechanical pressure filtration equipment, automatic vertical filter press, washing coal sewage treatment, large-scale filtration equipment for chemical and petroleum industries.
Suspension is an important part of the filter and has a significant impact on the filtration efficiency of the filter. The suspension filtration method is divided into three types, namely, filter residue layer filtration, depth filtration and sieve filtration. The filter residue layer filtration means that after the initial stage of filtration, the initial filter residue layer is formed, and both large and small particles are trapped; the deep filtration means that the filter medium is thick, and the solid particles are less suspended, the particles are smaller, after entering Filtration that is adsorbed in the pores; the sieve filtration is a filtration method in which the solid particles retained by the filtration are larger than the pores of the filtration medium, and the solid particles are not adsorbed inside the filtration medium.
In the actual filtration process, the three methods often occur simultaneously or sequentially. The processing capacity of the filter depends on the filtration speed. When the solid particles in the suspension are large and the particle size is uniform, the pores of the filtered filter residue layer are relatively smooth, and the filtrate passes through the filter residue layer at a relatively high speed. The use of a coagulant to aggregate fine particles into larger agglomerates helps to increase the filtration speed.
The vacuum filter creates a negative pressure at the filtrate outlet as a driving force for filtration. This filter is divided into two types: intermittent operation and continuous operation. The intermittently operated vacuum filter filters various concentrations of the suspension, and the continuously operated vacuum filter is suitable for filtering thick suspensions containing more solid particles.
For the suspension with fast sedimentation rate of solid particles, the filter applied in the upper part of the filter medium is applied so that the filtration direction is consistent with the direction of gravity, and the coarse particles are first settled, which can reduce the clogging of the filter medium and the filter residue layer; in the difficult-to-filter suspension ( If the solid particles such as diatomaceous earth and expanded perlite are mixed into the colloid, the filter residue layer can be loosened; when the viscosity of the filtrate is large, the suspension can be heated to lower the viscosity.
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Product list
Product Name
Each 1ml Content
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Boldenone Cypionate
200mg
BC-300/Boldcyp
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300mg
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300mg
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Drostanolone Enanthate(Masteron)
100mg
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Drostanolone Propionate
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50mg
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Nandrolone Decanoate
200mg
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50mg
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100mg
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Testosterone Cypionate
250mg
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