Method and apparatuses for screening
US-2016263621-A1 · Sep 15, 2016 · US
Production method and production device for resin powder or inorganic powder
US12350684B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12350684-B2 |
| Application number | US-202218717208-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 15, 2022 |
| Priority date | Dec 22, 2021 |
| Publication date | Jul 8, 2025 |
| Grant date | Jul 8, 2025 |
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- Title
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Abstract
Official abstract text for this publication.
The present invention provides a method and an apparatus for producing a resin powder or an inorganic powder and capable of easily removing the metal component generated from the sieving wire mesh itself in addition to space saving and a high processing speed in the sieving step while maintaining the classification capacity of the sieving wire mesh. The method including: a sieving step of sieving a resin powder to be processed or an inorganic powder to be processed using a sieving wire mesh having a Vickers hardness of 220 HV or more; and a magnetic separation step of removing, from a resin powder or an inorganic powder containing a metal component after the sieving step, the metal component using a magnetic separator. The apparatus including: a sieving wire mesh having a Vickers hardness of 220 HV or more; and a magnetic separator.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for producing a resin powder or an inorganic powder, the method comprising: a sieving step of sieving a resin powder to be processed or an inorganic powder to be processed using a sieving wire mesh having a Vickers hardness of 220 HV to 320 HV; and a magnetic separation step of removing, from a resin powder or an inorganic powder containing a metal component after the sieving step, the metal component using a magnetic separator, wherein the resin powder contains a crosslinked polymer, and the inorganic powder contains an inorganic ion exchanger. 2. The production method according to claim 1 , wherein a tensile strength of a material constituting the sieving wire mesh is 500 N/mm 2 or more. 3. The production method according to claim 1 , wherein the crosslinked polymer is a water-absorbing resin. 4. An apparatus for producing a resin powder or an inorganic powder, the apparatus comprising: a sieving wire mesh having a Vickers hardness of 220 HV to 320 HV; and a magnetic separator, wherein the resin powder contains a crosslinked polymer, and the inorganic powder contains an inorganic ion exchanger. 5. The apparatus for producing the resin powder or the inorganic powder according to claim 4 , wherein a tensile strength of a material constituting the sieving wire mesh is 500 N/mm 2 or more.
Assignees
Inventors
Classifications
- B07B1/4609Primary
constructional details of screening surfaces or meshes · CPC title
Magnetic separation of bulk or dry particles in mixtures · CPC title
Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets · CPC title
Compositions of unspecified macromolecular compounds · CPC title
containing plural metal, or metal and ammonium · CPC title
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- What does patent US12350684B2 cover?
- The present invention provides a method and an apparatus for producing a resin powder or an inorganic powder and capable of easily removing the metal component generated from the sieving wire mesh itself in addition to space saving and a high processing speed in the sieving step while maintaining the classification capacity of the sieving wire mesh. The method including: a sieving step of sievi…
- Who is the assignee on this patent?
- Toagosei Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B07B1/4609. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jul 08 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).