GB936693A - Improvements relating to the blending of materials - Google Patents
Improvements relating to the blending of materialsInfo
- Publication number
- GB936693A GB936693A GB2041960D GB2041960D GB936693A GB 936693 A GB936693 A GB 936693A GB 2041960 D GB2041960 D GB 2041960D GB 2041960 D GB2041960 D GB 2041960D GB 936693 A GB936693 A GB 936693A
- Authority
- GB
- United Kingdom
- Prior art keywords
- flow
- control
- blend
- line
- pulses
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D11/00—Control of flow ratio
- G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
- G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
- G05D11/131—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components
- G05D11/132—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components by controlling the flow of the individual components
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Accessories For Mixers (AREA)
- Flow Control (AREA)
Abstract
936,693. Automatic control of volume. J. J. JISKOOT. June 5, 1962 [June 6, 1961], No. 20419/61. Class 38 (4). [Also in Group XIX] In a blending control system a pulse generator is driven at a reference flow rate and provides at a plurality of output channels pulse trains of different mean frequencies corresponding to different proportions of the reference flow rate and at least one flow controller is connected to one or a group of output channels to control the flow of a component to be blended by comparing the mean frequency of the pulses representing the actual flow with the selected pulses. As shown, a control panel has three controllers 10, 12 and 14 for component materials of a blend. Each controller receives pulses from a master pulser 16 which is a slave of a meter 18 in a line 20 leading to a blending manifold or of a manually adjustable blend-rate oscillator 24. The total flow of blend is derived from a counter 26. The master pulser comprises an electric motor driving a plurality of tone wheel generator, each of which is connected to an output channel, or alternatively the master pulser comprises cyclically-counting binary decade counters (see Group XIX), the output channel being connected to the appropriate sides of the flip-flops which form the counters. Each controller has a " set-percentage " switch 28 for selecting appropriate channels from the master pulser. The pulses in the selected channels are fed to a differential counter 30 which receives its other input from a flow-meter 32 in the corresponding component flow-line. The differential counter provides a control current, via a digital to analogue converter 34, which is fed to an electro-pneumatic transducer 36. The transducer 36 through an air-pressure control 38 determines the operation of a diaphragm motor 40 positioning a control valve 42 in the flow-line. Each controller provides automatic closed loop control of the flow rate in the associated flow-line in dependence on the setting of the switches 28. When the master pulser 16 is. controlled by the blend-rate oscillator 24 the percentage blend of component materials A, B, C is maintained constant and when the master pulser is controlled by the meter 18 the flows of component materials A, B, C are maintained as percentages of the flow in the line 20.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2041960D GB936693A (en) | 1961-06-06 | 1961-06-06 | Improvements relating to the blending of materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2041960D GB936693A (en) | 1961-06-06 | 1961-06-06 | Improvements relating to the blending of materials |
Publications (1)
Publication Number | Publication Date |
---|---|
GB936693A true GB936693A (en) | 1963-09-11 |
Family
ID=10145652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2041960D Expired GB936693A (en) | 1961-06-06 | 1961-06-06 | Improvements relating to the blending of materials |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB936693A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4850703A (en) * | 1985-03-20 | 1989-07-25 | Kabushiki Kaisha Matsui Seisakusho | Method of mixing pulverulent materials and device for practicing the same |
WO2010142050A3 (en) * | 2009-06-11 | 2012-04-19 | Stefan Schonert | System for filling liners |
-
1961
- 1961-06-06 GB GB2041960D patent/GB936693A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4850703A (en) * | 1985-03-20 | 1989-07-25 | Kabushiki Kaisha Matsui Seisakusho | Method of mixing pulverulent materials and device for practicing the same |
WO2010142050A3 (en) * | 2009-06-11 | 2012-04-19 | Stefan Schonert | System for filling liners |
CN102549517A (en) * | 2009-06-11 | 2012-07-04 | 斯蒂芬·舍纳特 | System for filling liners |
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