GB1017202A - Improvements relating to the measurement and control of the temperature of lead oxide mills - Google Patents
Improvements relating to the measurement and control of the temperature of lead oxide millsInfo
- Publication number
- GB1017202A GB1017202A GB485/62A GB48562A GB1017202A GB 1017202 A GB1017202 A GB 1017202A GB 485/62 A GB485/62 A GB 485/62A GB 48562 A GB48562 A GB 48562A GB 1017202 A GB1017202 A GB 1017202A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- mill
- temperature
- lead
- lead oxide
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G21/00—Compounds of lead
- C01G21/02—Oxides
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
- G01K7/023—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples provided with specially adapted connectors
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1919—Control of temperature characterised by the use of electric means characterised by the type of controller
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/22—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element being a thermocouple
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Inorganic Chemistry (AREA)
- Crushing And Grinding (AREA)
- Disintegrating Or Milling (AREA)
Abstract
<FORM:1017202/C1/1> Means for controlling the temperature of a charge contained in a lead oxide mill comprises electrical temperature responsive means mounted on the drum, means for supplying a flow of cooling fluid to the drum and means for controlling the supply of said cooling fluid in response to electric signals received from the temperature responsive means. The Figure shows a mill having a perforated rotary drum 1, surrounded by screens 2, the whole being supported on a rod driven by hollow shafts 3, within an outer closed stationary casing 4. A motor 5 and reduction gearing 6 serve to mobilize drum. In operation, the lead charged to the mill by elevator 7 oxidizes on rotation of the mill and the oxide falls through the screen 2. Thermocouples 10 (not shown) inside housing 11 are in close conductive contact with the surface of the drum and send signals via leads 14 to ring gear 15 and thence to a temperature controller 17, which governs the operation of a solenoid-operated valve 18 supplementing the cooling water flow to the inside of the drum. A minimum cooling water requirement is thus constantly supplied via valve 20 and feed pipe 21 from a head tank 19. In a second embodiment (Fig. 4, not shown) the mill includes an unperforated drum 25 into which pieces of lead are blown from charging device 29. Lead oxide formed is blown into classifier 30, coarse particles being returned by means of a conveyer 32 into an air recycle line at B. Suspended product fines are withdrawn from cyclone separator 31 and the air is recycled by blower 26. Controller 17 operates valve 27 in the on or off position to spray water directly on to the outer surface of the drum 25 for a length of time proportional to the temperature of the drum.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB485/62A GB1017202A (en) | 1962-01-05 | 1962-01-05 | Improvements relating to the measurement and control of the temperature of lead oxide mills |
| CH9663A CH413807A (en) | 1962-01-05 | 1963-01-05 | Plant for the preparation of lead oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB485/62A GB1017202A (en) | 1962-01-05 | 1962-01-05 | Improvements relating to the measurement and control of the temperature of lead oxide mills |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1017202A true GB1017202A (en) | 1966-01-19 |
Family
ID=9705168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB485/62A Expired GB1017202A (en) | 1962-01-05 | 1962-01-05 | Improvements relating to the measurement and control of the temperature of lead oxide mills |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH413807A (en) |
| GB (1) | GB1017202A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020102230A1 (en) * | 2018-11-12 | 2020-05-22 | Cps Technology Holdings Llc | Ball mill cooling system & method |
-
1962
- 1962-01-05 GB GB485/62A patent/GB1017202A/en not_active Expired
-
1963
- 1963-01-05 CH CH9663A patent/CH413807A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020102230A1 (en) * | 2018-11-12 | 2020-05-22 | Cps Technology Holdings Llc | Ball mill cooling system & method |
| CN113272251A (en) * | 2018-11-12 | 2021-08-17 | Cps科技控股有限公司 | Ball mill cooling system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CH413807A (en) | 1966-05-31 |
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