Magnetic sieve plate and preparation method and use method thereof

A sieve plate and magnetic technology, applied in the field of magnetic sieve plate and its preparation, can solve the problems of inability to disassemble, large pore size of magnetic sieve plate, difficult to clean, etc., and achieve the effect of simple preparation method, uniform magnetic distribution and good filtering effect

Inactive Publication Date: 2019-12-20
SHENZHEN BIOEASY BIOTECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above separation devices all use magnetic sieve plates, but in the process of implementing the embodiments of the present application, the inventors of the present application found that the above-mentioned technologies have at least the following technical problems: (1) The existing magnetic sieve plates are usually fixed in the shell, It cannot be moved and taken out during use, and generally has a one-piece structure, which cannot be disassembled and is not easy to clean; (2) The existing magnetic sieve plate generates a continuous magnetic field by itself even without applying any external magnetic field, and is usually used for Adsorb waste metal blocks, metal particle...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] A kind of magnetic sieve plate, its preparation method specifically comprises the following steps:

[0066] (1) Dissolve 5.42g of ferric chloride hexahydrate and 2.356g of ferrous chloride tetrahydrate in 10ml of ultrapure water, mix them, and vortex evenly; pour them into a mixture of 100ml of ultrapure water and 15ml of ammonia water, 300rpm Stir mechanically, wash to neutral after reacting for 30 minutes, and obtain ferroferric oxide magnetic beads;

[0067] (2) Mix 0.3g of ferroferric oxide magnetic beads with 4g of styrene, 6g of polyvinylpyrrolidone, and 80ml of water, evacuate nitrogen and remove oxygen; stir at 600rpm and heat up to 82°C, pour 0.2g of benzyl oxide after the temperature stabilizes acyl, reacted for 48 hours; magnetic polystyrene microspheres were collected by washing with a magnet;

[0068] (3) The magnetic microspheres were stacked in the center of a 5000-mesh porous metal-based filter plate, and pressed at 110° C. with a pressure of 4 tons to ...

Embodiment 2

[0071] A kind of magnetic sieve plate, its preparation method specifically comprises the following steps:

[0072] (1) Put polyethylene powder into the mold, place the mold in a hot press, press the upper and lower plates at a temperature of 230°C, press at 3MPa for 60 minutes, and then air cool to room temperature to obtain a filter plate;

[0073] (2) Dissolve 5.42g of ferric chloride hexahydrate and 2.356g of ferrous chloride tetrahydrate in 10ml of ultrapure water and mix them, vortex evenly; pour into the mixture of 100ml of ultrapure water and 15ml of ammonia water, 300rpm Stir mechanically, wash to neutral after reacting for 30 minutes, and obtain ferric oxide magnetic beads; disperse the ferric ferric oxide magnetic beads in aqueous ethanol to form a magnetic bead dispersion;

[0074] (3) Mix 10 g of the filter plate with 1 g of the magnetic bead dispersion, reflux for 60 minutes, and dry to obtain the magnetic sieve plate.

[0075] The method of using the magnetic si...

Embodiment 3

[0077] A kind of magnetic sieve plate, its preparation method specifically comprises the following steps:

[0078] (1) Dissolve 5.42g of ferric chloride hexahydrate and 2.356g of ferrous chloride tetrahydrate in 10ml of ultrapure water, mix them, and vortex evenly; pour them into a mixture of 100ml of ultrapure water and 15ml of ammonia water, 300rpm Stir mechanically, wash to neutral after reacting for 30 minutes, and obtain ferroferric oxide magnetic beads;

[0079] (2) Mix 0.3g of ferroferric oxide magnetic beads with 4g of styrene, 6g of polyvinylpyrrolidone, and 80ml of water, evacuate nitrogen and remove oxygen; stir at 600rpm and heat up to 82°C, pour 0.2g of benzyl oxide after the temperature stabilizes acyl, reacted for 48 hours; magnetic polystyrene microspheres were collected by washing with a magnet;

[0080](3) Put the magnetic polystyrene microspheres in a metal mold, put the metal mold in a hot press, press the upper and lower plates at a temperature of 170°C, ...

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Abstract

The invention discloses a magnetic sieve plate and a preparation method and a use method thereof. The magnetic sieve plate is made of various materials, wherein at least one material is a non-permanent magnetic material, and at least one material is a high polymer material. The magnetic sieve plate is non-magnetic in a non-magnetic field environment and is not different from a common sieve plate,and meets all filtering functions of the common sieve plate; and in an external magnetic field, the magnetic sieve plate generates magnetism, can be controlled by the magnetic force, can move in a housing, realizes a filtering function at different positions in the space of the housing, or realizes directional movement of intercepted large particles, or realizes regulation and control of the sizeof a filtrate bearing space; and the magnetic sieve plate has important significance for the fluid control and automatic detection process.

Description

technical field [0001] The invention relates to the technical field of biochemical detection, in particular to a magnetic sieve plate, a preparation method and a use method thereof. Background technique [0002] In the prior art, sieve plates are usually used in purification and filtration equipment to intercept large particles and purify products. CN205773875U discloses a sand-water separation device for water treatment, comprising a separation device body and a settling barrel; a metal collecting bucket is provided between the lower end of the separating device body and the upper end of the settling bucket; From top to bottom, a first magnetic sieve plate, a second magnetic sieve plate and a stirring device are arranged in sequence, the first magnetic sieve plate and the second magnetic sieve plate are arranged at intervals, and the second magnetic sieve plate and the stirring device Connection; simple structure and low operating cost. During the sand-water separation pro...

Claims

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Application Information

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IPC IPC(8): B03C1/30
CPCB03C1/30
Inventor 严义勇邓炀王嘉欣马红圳金虹
Owner SHENZHEN BIOEASY BIOTECHNOLOGY CO LTD
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