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Roller press capable of applying electric field

A technology of applying voltage and rolling machine, which is applied in the field of rolling machine, can solve the problems of difficult transmission of friction and shear force, poor crushing or dispersion effect, weak interaction, etc., to achieve enhanced shearing effect, improved grinding efficiency, enhanced interaction effect

Active Publication Date: 2017-11-17
HENAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in actual use, in some cases, due to the mismatch of surface energy, polarity or affinity between the two-phase system, the interaction between the particles and the solvent is weak, and the frictional shear generated during the rotation of the pressing roller It is difficult to transmit force to solid particles, and the crushing or dispersion effect is poor

Method used

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  • Roller press capable of applying electric field
  • Roller press capable of applying electric field
  • Roller press capable of applying electric field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] There are at least two pressing rollers, and charges of different polarities are applied between adjacent pressing rollers.

[0036] According to the different number of pressing rollers, there are many ways to apply electric field. For example, when there are more than 2 pressing rollers, charges of opposite polarity can be applied on adjacent pressing rollers. If there are 4 pressing rollers, the first and third The pressure rollers are positively charged and the 2 and 4 pressure rollers are negatively charged.

Embodiment 2

[0038] The number of the pressure rollers is at least n+1, wherein n is an even number except 0, no charge is applied to the nth pressure roller, and different poles are respectively applied to the two pressure rollers adjacent to the nth pressure roller. sexual charge.

[0039]When the number of pressure rollers is 3, 5, 7, 9..., the way of applying the electric field can be +, 0, -, 0, +, 0, -, 0 means no electric field is applied, that is, the first, third, and fifth Positive charges are applied to odd-numbered rollers, and negative charges are applied to even-numbered rollers such as 2 and 4.

[0040] Of course, the way of applying the electric field can also be the same as in Embodiment 1, and electric fields of different polarities are set between two adjacent pressing rollers.

Embodiment 3

[0042] Taking the three-roll machine as an example, the adjacent press rolls are electrically insulated, and the roll surfaces of the press rolls are made of conductive materials. In order to realize electrical insulation between adjacent pressing rollers, the pressing rollers are fixed on the frame through bearings, and the bearings are made of insulating materials.

[0043] The electric field application method can be +, -, +, that is, positive charges are applied to the first and third pressing rollers, and negative charges are applied to the second pressing roller.

[0044] The electric field application method of the three-roll machine can also be: +, 0, -, that is, no electric field is applied to the second pressure roller, and only an electric field with opposite polarity is applied to the first and third pressure rollers, so that the pressure on the pressure roller have different charges.

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Abstract

The invention relates to a roller press capable of applying an electric field. The roller press is characterized in that each roller surface of the roller press is made of a conductive material; electric insulation is achieved among rollers; and in the working process, the direct-current electric field or the alternating-current electric field can be applied to the positions among the rollers in a manner that an electric brush rubs each roller surface. By means of conventional roller presses, granule pulverization and dispersion are achieved mainly through shear force and crushing force generated among rollers. The roller press has functions of the conventional roller presses and can further apply the alternating-current electric field or the direct-current electric field to the positions among the rollers; and the electrochemical action is introduced, so that grains or solutions in a system are induced to change physically or chemically, interaction force generated among the grains or the solutions is increased, and grinding efficiency and dispersion efficiency are improved. By means of the roller press, efficient grinding and rapid mixing of the solid-liquid dispersion system, such as pulverization and homogenization of solid grains and mixing and dispersion of two liquid phases in the solid-liquid system containing printing ink or coatings or cosmetics and the like can be achieved.

Description

technical field [0001] The invention relates to the field of dispersion and grinding of a liquid-liquid or solid-liquid two-phase dispersion system, in particular to a roller press capable of applying an electric field. Background technique [0002] Nanotechnology can fundamentally change many traditional products. Adding nanoparticles or nanomaterials to traditional materials can improve or obtain a series of functions. For example, the application of nanotechnology in paints, inks or coatings will not only greatly Improve the covering rate, prolong the aging time of materials, and save raw materials. Adding a small amount of metal nanoparticles to chemical fiber cloth can get rid of the static electricity caused by friction. Adding nanomaterials to food, medicine, and cosmetics will greatly increase the absorption rate of effective substances by the human body. Nano-ceramics have been widely used in computer, aerospace and military fields. Therefore, nanotechnology has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C4/02B02C19/18
CPCB02C4/02B02C19/18Y02E60/10
Inventor 张经纬
Owner HENAN UNIVERSITY
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