GB350538A - Improvements relating to processes for grinding materials - Google Patents
Improvements relating to processes for grinding materialsInfo
- Publication number
- GB350538A GB350538A GB803730A GB803730A GB350538A GB 350538 A GB350538 A GB 350538A GB 803730 A GB803730 A GB 803730A GB 803730 A GB803730 A GB 803730A GB 350538 A GB350538 A GB 350538A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cement
- segregating
- ground
- resin
- particles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
Abstract
In the dry grinding of cement clinker, gypsum powder, &c., the material to be ground has mixed therewith a segregating agent capable of imparting a dispersive propensity to the pulverized particles being ground. The segregating agent comprises material which when rubbed against the particles being ground generates static electric charges in the particles which induces mutual repulsion; for cement and cement clinker the segregating material is resin or a resinous material. The segregating material may be used alone or with a diffusing material such as plaster of Paris or hydraulic cement, the pulverized resin being mixed with the diffusing material together with a sufficient quantity of water to set the mixture. In the manufacture of cement, 1 part of resin to 5 parts of plaster of Paris or hydraulic cement may be used, and 1 part of this mixture is placed in the mill with each 200 parts of cement. The segregating and diffusing material is less resistant to abrasion than the material being ground.ALSO:In the dry grinding of cement clinker, gypsum powder, &c. the material to be ground has mixed therewith a segregating agent capable of imparting a dispersive propensity to the pulverized particles being ground. The segregating agent comprises material which when rubbed against the particles being ground generates static electric charges in the particles which induces mutual repulsion; for cement and cement clinker the segregating material is resin or a resinous material. The segregating material may be used alone or with a diffusing material such as plaster of Paris or hydraulic cement, the pulverized resin being mixed with the diffusing material together with a sufficient quantity of water to set the mixture. In the manufacture of cement, one part of resin to five parts of plaster of Paris or hydraulic cement may be used, and one part of this mixture is placed in the mill with each two hundred parts of cement. The segregating and diffusing material is less resistant to abrasion than the material being ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB803730A GB350538A (en) | 1930-03-12 | 1930-03-12 | Improvements relating to processes for grinding materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB803730A GB350538A (en) | 1930-03-12 | 1930-03-12 | Improvements relating to processes for grinding materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB350538A true GB350538A (en) | 1931-06-12 |
Family
ID=9844561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB803730A Expired GB350538A (en) | 1930-03-12 | 1930-03-12 | Improvements relating to processes for grinding materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB350538A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2593008A (en) * | 1950-04-13 | 1952-04-15 | Hercules Powder Co Ltd | Foamed gypsum composition |
| US3168253A (en) * | 1961-10-18 | 1965-02-02 | Onoda Cement Co Ltd | Method of grinding quicklime |
| US7891725B2 (en) * | 2004-06-09 | 2011-02-22 | The Wrights Group Limited | Passenger service vehicles |
-
1930
- 1930-03-12 GB GB803730A patent/GB350538A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2593008A (en) * | 1950-04-13 | 1952-04-15 | Hercules Powder Co Ltd | Foamed gypsum composition |
| US3168253A (en) * | 1961-10-18 | 1965-02-02 | Onoda Cement Co Ltd | Method of grinding quicklime |
| US7891725B2 (en) * | 2004-06-09 | 2011-02-22 | The Wrights Group Limited | Passenger service vehicles |
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