GB202906A - Improvements in and relating to roller and ring mills for grinding and crushing coal and the like - Google Patents
Improvements in and relating to roller and ring mills for grinding and crushing coal and the likeInfo
- Publication number
- GB202906A GB202906A GB3528922A GB3528922A GB202906A GB 202906 A GB202906 A GB 202906A GB 3528922 A GB3528922 A GB 3528922A GB 3528922 A GB3528922 A GB 3528922A GB 202906 A GB202906 A GB 202906A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ring
- mill
- roller
- grinding
- coal
- 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
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/06—Mills with rollers forced against the interior of a rotary ring, e.g. under spring action
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
202,906. Babcock & Wilcox, Ltd., (Deutsche Babcock & Wilcox Dampfkessel- Werke Akt.-Ges.). Dec. 28, 1922. Roller-and-ring mills.-In a mill for grinding or crushing coal &c. of the type in which spring- pressed rollers run against the inside surface of a stationary ring, scrapers or shovels arranged between and rotating with the rollers remove the material from the ring, and revolving conveying- shovels arranged laterally of the ring return the material passing near the ring back to the grinding-track of the ring. As shown, the spindles 3<1> of the rollers 3 are mounted in bearing-boxes 7, which are movable in radial frames 6 fixed to hubs 5 on a shaft 4 and are pressed outwards by springs 8 which can be tensioned by means of bolts 9 and spring plates 10. A scraper shovel 11, which has a number of stepped scraping surfaces or is set at an inclination, is arranged behind each roller, and conveying-shovels 12 placed laterally of the ring run between the roller systems to carry the coal &c. dropping from the side of the ring 2 back into the grinding system. A separating-chamber 13 is placed above the mill and communicates with a fan 15 by passages 14. Air from the burners at which the powdered coal is burnt is drawn into the mill through nozzles 16, and the coarser material separated in the chamber 13 passes back to the mill by the passages 13a. The ring 2 may be provided with two diametrically-opposite inletopenings 17 so that it can be turned when it becomes worn.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3528922A GB202906A (en) | 1922-12-28 | 1922-12-28 | Improvements in and relating to roller and ring mills for grinding and crushing coal and the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3528922A GB202906A (en) | 1922-12-28 | 1922-12-28 | Improvements in and relating to roller and ring mills for grinding and crushing coal and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
GB202906A true GB202906A (en) | 1923-08-30 |
Family
ID=10376027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3528922A Expired GB202906A (en) | 1922-12-28 | 1922-12-28 | Improvements in and relating to roller and ring mills for grinding and crushing coal and the like |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB202906A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5330110A (en) * | 1993-07-12 | 1994-07-19 | Williams Robert M | Apparatus for grinding material to a fineness grade |
CN110328017A (en) * | 2019-08-02 | 2019-10-15 | 南通利元亨机械有限公司 | Grinding roller and bull ring are apart from adjustable Raymond mill |
CN115254373A (en) * | 2022-06-24 | 2022-11-01 | 河南黎明重工科技股份有限公司 | A scraper that is used for vertical roller to grind center feed |
-
1922
- 1922-12-28 GB GB3528922A patent/GB202906A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5330110A (en) * | 1993-07-12 | 1994-07-19 | Williams Robert M | Apparatus for grinding material to a fineness grade |
CN110328017A (en) * | 2019-08-02 | 2019-10-15 | 南通利元亨机械有限公司 | Grinding roller and bull ring are apart from adjustable Raymond mill |
CN110328017B (en) * | 2019-08-02 | 2021-12-24 | 南通利元亨机械有限公司 | Raymond mill with adjustable distance between grinding roller and grinding ring |
CN115254373A (en) * | 2022-06-24 | 2022-11-01 | 河南黎明重工科技股份有限公司 | A scraper that is used for vertical roller to grind center feed |
CN115254373B (en) * | 2022-06-24 | 2024-05-14 | 河南黎明重工科技股份有限公司 | Scraping device for vertical roller mill center feeding |
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