GB970897A - Improvements relating to grinding cement clinker and similar materials - Google Patents
Improvements relating to grinding cement clinker and similar materialsInfo
- Publication number
- GB970897A GB970897A GB2452662A GB2452662A GB970897A GB 970897 A GB970897 A GB 970897A GB 2452662 A GB2452662 A GB 2452662A GB 2452662 A GB2452662 A GB 2452662A GB 970897 A GB970897 A GB 970897A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mill
- nozzle
- nozzles
- diaphragm
- pyrometer
- 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
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/04—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container
- B02C17/06—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container with several compartments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
Abstract
970,897. Tube mills ; reducing cements. F. L. SMIDTH & CO. A.S. June 26, 1963 [June 26, 1962], No. 24526/62. Heading B2A. [Also in Division G3] Cement-clinker is ground in a mill having internal water injection for cooling purposes both between its inlet end and its centre and between its centre and its outlet end. As described, a compartmented, rotatable, mill-body 1 includes inlet and outlet trunnions 2, 3 and an inlet-hopper 6, ground material being carried away through a tube 10 and a gate-valve 12, and air being drawn through the mill via an electric dust-separator 13 to a chimney 15 by a pump 14. The mill is driven via membranecouplings 21, 22 and a reduction-gear 23 by a motor 24. Cooling water delivered from tanks 27, 28 is pumped by electric pumps 37, 38 along pipes 48, 49 through motor- or solenoidactuated valves 54, 55 to nozzles 50, 53 at opposite ends of the mill. A controlled flow of compressed air is applied to the nozzles along ducts 62, 63. In operation, when the motor 24 is started the rotary gate valve 12 12 operates, valves 61, 64, 65 controlling the compressed air supply are opened and the air clears the nozzles 50, 53 and grinding begins. When the temperature of ground material exceeds a set limit, e.g. 80 ‹C., a pyrometer 74 in the output feed-pipe 10 controls a cooling spray of water via the nozzle 53 into the final chamber III until the temperature falls. Similarly, if the temperature of material fed to the mill rises above a set limit, a pyrometer 72 in the inlet-hopper controls a cooling spray via nozzle 50 into the first chamber I. A rise in temperature above a further limit, e.g. 100 ‹C., causes full opening of the valve 54 and a large spray of cooling water, and, if the temperature continues to rise, the mill and its feed device are automatically stopped. Each dividing diaphragm 16, 17 is formed by a thin slotted steel plate 81, Fig. 2, and a thicker plate 84 having a central opening 85 corresponding with an opening 83 in the plate 81. Air is sucked through the openings and ground material passes through the slots and is lifted by curved scoops 86 which also act as separators between the plates. A pyrometer 88, which may replace or supplement the pyrometers 72, 74, may be mounted within the space between the walls of the diaphragm with lead wires 89, 90 connected to contact rings 91, 92. A terminal is resiliently pressed against each of the rings 91, 92 which are kept in position in relation to the shell of the mill by supports 93, 94 bolted thereto. In a further embodiment, cement clinker and gypsum in silos 108, 109, Fig. 4, are weighed in feeders 110, 111, and the mill includes a double diaphragm 102, and a single diaphragm 103 having a central aperture, and is supported in neck-journal bearings 106, 107 at each end. The water injection for the first stage includes two nozzles 117, 118, water from the nozzle 117 striking the region near the diaphragm 102, and water from the nozzle 118 striking the mill near the feed entry. A pyrometer 131 in the cement clinker silo 108 controls the primary spray nozzle 118 by a valve 123, and a pyrometer 132 in the interior wall of the casing 113 controls a valve 122 for the secondary spray 117. The nozzles may be arranged to prevent interference with the jets, by having a central secondary-nozzle-bearing cylinder fed by one pipe, and an outer ring of primary nozzles surrounding it and fed by a second pipe. Another embodiment includes primary and secondary sprays at the inlet and outlet ends of the chamber I. The pyrometer for controlling the secondary spray is sited within the double diaphragm, arid the feed from the control valve to the nozzle enters the mill via a stuffing box, which also permits entry of a regulator supply to feed the nozzle in the third compartment of the mill. Mills may be provided with four or more compartments, and spraying may be applied in different combinations of compartments. A double diaphragm may be provided with nozzles to effect spraying into the two compartments separated by the diaphragm.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2452662A GB970897A (en) | 1962-06-26 | 1962-06-26 | Improvements relating to grinding cement clinker and similar materials |
DE1963S0085795 DE1696442B1 (en) | 1962-06-26 | 1963-06-22 | MULTI-CHAMBER TUBE MILL |
ES289305A ES289305A1 (en) | 1962-06-26 | 1963-06-24 | Method for moler clinker of cement or materials analogs (Machine-translation by Google Translate, not legally binding) |
NO14917063A NO121261B (en) | 1962-06-26 | 1963-06-25 | |
FR939473A FR1367028A (en) | 1962-06-26 | 1963-06-26 | Method and apparatus for grinding cement clinker and the like |
SE708963A SE311604B (en) | 1962-06-26 | 1963-06-26 | |
ES0291804A ES291804A1 (en) | 1962-06-26 | 1963-09-19 | Improvements relating to grinding cement clinker and similar materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2452662A GB970897A (en) | 1962-06-26 | 1962-06-26 | Improvements relating to grinding cement clinker and similar materials |
Publications (1)
Publication Number | Publication Date |
---|---|
GB970897A true GB970897A (en) | 1964-09-23 |
Family
ID=10213048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2452662A Expired GB970897A (en) | 1962-06-26 | 1962-06-26 | Improvements relating to grinding cement clinker and similar materials |
Country Status (6)
Country | Link |
---|---|
DE (1) | DE1696442B1 (en) |
ES (2) | ES289305A1 (en) |
FR (1) | FR1367028A (en) |
GB (1) | GB970897A (en) |
NO (1) | NO121261B (en) |
SE (1) | SE311604B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2150857A (en) * | 1981-01-09 | 1985-07-10 | Grace W R & Co | Method of improving throughput efficiency of a rotary drum mill |
ES2245564A1 (en) * | 2003-09-11 | 2006-01-01 | Fundiciones Del Estanda, S.A. | Water injection system for milling apparatus, has two atomizers controlled to spray water individually into two chambers of mill and to regulate mill temperature |
CN111093831A (en) * | 2017-09-06 | 2020-05-01 | 西门子股份公司 | Method and apparatus for separating adherent charge from the inside of a grinding tube of a tube mill |
CN113713916A (en) * | 2021-07-28 | 2021-11-30 | 吴耿多 | Environment-friendly dust-free efficient ball milling equipment for cement production workshop |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1491794A (en) * | 1975-05-07 | 1977-11-16 | Smidth & Co As F L | Rotary drum plants |
IS1443B6 (en) * | 1980-12-17 | 1990-12-14 | Aalborg Portland A/S | thurr cement mix |
DE4411105C1 (en) * | 1994-03-30 | 1995-04-06 | Maury Hans Dietmar | Method of feeding auxiliary grinding means |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE548637C (en) * | 1932-04-18 | Arno Andreas | Device for cooling the ground material in drum mills | |
AT117523B (en) * | 1927-10-08 | 1930-04-25 | Carl Pontoppidan | Method and device for grinding cement and similar materials. |
-
1962
- 1962-06-26 GB GB2452662A patent/GB970897A/en not_active Expired
-
1963
- 1963-06-22 DE DE1963S0085795 patent/DE1696442B1/en active Pending
- 1963-06-24 ES ES289305A patent/ES289305A1/en not_active Expired
- 1963-06-25 NO NO14917063A patent/NO121261B/no unknown
- 1963-06-26 SE SE708963A patent/SE311604B/xx unknown
- 1963-06-26 FR FR939473A patent/FR1367028A/en not_active Expired
- 1963-09-19 ES ES0291804A patent/ES291804A1/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2150857A (en) * | 1981-01-09 | 1985-07-10 | Grace W R & Co | Method of improving throughput efficiency of a rotary drum mill |
ES2245564A1 (en) * | 2003-09-11 | 2006-01-01 | Fundiciones Del Estanda, S.A. | Water injection system for milling apparatus, has two atomizers controlled to spray water individually into two chambers of mill and to regulate mill temperature |
CN111093831A (en) * | 2017-09-06 | 2020-05-01 | 西门子股份公司 | Method and apparatus for separating adherent charge from the inside of a grinding tube of a tube mill |
US10967383B2 (en) | 2017-09-06 | 2021-04-06 | Siemens Aktiengesellschaft | Method and device for detaching an adhering charge from the inner side of a grinding pipe of a tube mill |
CN111093831B (en) * | 2017-09-06 | 2022-06-24 | 西门子股份公司 | Method and apparatus for separating adherent charge from the inside of a grinding tube of a tube mill |
CN113713916A (en) * | 2021-07-28 | 2021-11-30 | 吴耿多 | Environment-friendly dust-free efficient ball milling equipment for cement production workshop |
CN113713916B (en) * | 2021-07-28 | 2023-10-03 | 东营美园新材料科技有限公司 | Dust-free type efficient ball milling equipment for environment-friendly cement production workshop |
Also Published As
Publication number | Publication date |
---|---|
ES291804A1 (en) | 1964-01-16 |
NO121261B (en) | 1971-02-01 |
ES289305A1 (en) | 1963-11-16 |
FR1367028A (en) | 1964-07-17 |
SE311604B (en) | 1969-06-16 |
DE1696442B1 (en) | 1976-07-01 |
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