Light calcium can be used as a filler in the rubber, plastics, paper, paint and ink industries. Widely used in the production of organic synthesis, metallurgy, glass and asbestos.
The production of light calcium carbonate is made by using limestone as raw material, by calcination, digestion, carbonation, dehydration separation, drying, screening and packaging. Because the degree of control of the production process conditions is different, the particle size of the produced light calcium is also different, and the calcium powder after drying exists in the form of large and small agglomerates.
So how to solve the problem of material agglomeration, vibrating screen manufacturer Henan Kangzhen Machinery to explain to you:
The air flow screen plays a good screening effect in solving the problem of light calcium material agglomeration. The dried light calcium powder is quantitatively sent to the coarse screening inlet through the screw conveyor, and the large particles and foreign matter are first removed. The coarse-grained calcium powder enters the fine screen of the main machine, is accelerated by the rotating impeller and is sprayed toward the screen at a set guiding angle. The calcium powder particles with a smaller particle size than the mesh aperture pass through the screen and fall into the host. Above the bottom plate, the guide chock here leads to the inlet of the exhaust pipe, where the finished calcium powder enters the cyclone with the airflow, and the calcium powder falls into the silo and is discharged into the bag by the packing machine. The gas with a small amount of calcium powder is sent into the bag filter by the induced draft fan, and the gas is discharged. A small amount of calcium powder is sucked into the cyclone by the pipe under the dust collector and is discharged into the packaging machine. The efficiency of the cyclone is close to 100%. . The calcium powder particles whose particle diameter is greater than or equal to the pore size of the fine mesh are discharged from the slag outlet on the side of the main machine, and the collection rate of the qualified fine powder is above 98%.
The above is the working principle of Henan Kangzhen Machinery for everyone to explain the flow of light calcium in the screening of light calcium. More vibrating screen screening problems are solved in Henan Kangzhen Machinery.
Extraction Kit Magnetics Bead Method
This standard specifies the terms and definitions, classification, technical requirements, test methods, identification, labels and instructions for use, packaging, transportation and storage of nucleic acid extraction kits (magnetic beads method) (hereinafter referred to as "kits"). This standard It is suitable for extracting and purifying human genomic nucleic acid and its fragments from various clinical samples such as serum, plasma, whole blood, cerebrospinal fluid, milk, saliva, urine, sputum, swab, tissue or paraffin-embedded tissue by magnetic bead method , Pathogen nucleic acid kit. Pathogen nucleic acid includes deoxyribonucleic acid (DNA), ribonucleic acid (RNA), etc. This standard does not apply to nucleic acid extraction reagents contained in closed systems that cannot extract nucleic acid extraction products for detection.
This kit uses magnetic beads with unique separation function and a unique buffer system to separate and purify high-quality virus from serum, plasma, lymph, cell-free body fluid, cell culture supernatant, urine or various virus preservation solutions DNA/RNA. The uniquely embedded magnetic beads have a strong affinity for nucleic acids under certain conditions, and when the conditions change, the magnetic beads release the adsorbed nucleic acids, which can achieve the purpose of rapid separation and purification of nucleic acids. The whole process is safe and convenient, and the extracted viral DNA/RNA has high yield, high purity, stable and reliable quality, and is especially suitable for automated extraction of high-throughput workstations. The nucleic acid purified by this kit can be applied to various routine operations, including RT-PCR, fluorescence quantitative PCR and other downstream experiments.
Nucleic Acid Lsolation Reagent Kits,Dna Purification Kit,Viral Rna Extraction Kits,Nucleic Acid Extraction Reagents
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