CN203838030U - Density measuring device for dense-medium coal dressing suspension liquid - Google Patents
Density measuring device for dense-medium coal dressing suspension liquid Download PDFInfo
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- CN203838030U CN203838030U CN201420267338.9U CN201420267338U CN203838030U CN 203838030 U CN203838030 U CN 203838030U CN 201420267338 U CN201420267338 U CN 201420267338U CN 203838030 U CN203838030 U CN 203838030U
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- density
- dense
- pipeline
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- suspending liquid
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Abstract
The utility model discloses a density measuring device for dense-medium coal dressing suspension liquid, wherein a sampling pipeline is connected with a medium feeding pipe and communicates with a pressure lead pipeline which is divided into an upper pressure lead pipeline and a lower pressure lead pipeline according to mounting positions; a differential pressure transmitter is connected to the upper pressure lead pipeline and the lower pressure lead pipeline through measuring flange membranes to form an online sampling system; the terminal of the differential pressure transmitter is connected with a density display box which is connected with an alternating current power supply through a power cable and also connected with a density output signal cable for outputting density signals. The device employs an online bypass sampling technology, and adopts a constant-current sampling tube which enables pressure difference at the connected position of the upper and lower measuring flange membranes to be unlikely influenced by change of the flow rate of a main medium pipeline. Calibration and standardization of field ranging are more facilitated due to the density display box mounted in the field. The device can be singly provided according to production requirements of dense-medium coal dressing, and also can cooperate with an automatic control cabinet to form a dense-medium coal dressing density automatic control system, thus having good practicability in coal dressing industry.
Description
Technical field
The utility model relate to a kind of dense-medium separation automatic control system Density Detection instrument, dense-medium separation density of suspending liquid measurement mechanism specifically.
Background technology
The method and the instrument and meter that are currently applied to the detection of dense-medium separation density of suspending liquid have various ways, as forms such as radioactive density meter, two-tube differential pressure densimeter, tubular type densitometers, play certain effect in the field of study with in actual production, but also existed some radioactive density meter to be subject to environment for use restriction, pressure type densitometer to be easily subject to suspending liquid flow pressure variable effect or to be subject to dense medium magnetite powder easily precipitating the deficiencies such as clogging sensor.The densitometer that heavy-media coal preparation process needs should be installed easily, sampling part is representative by force, repair and maintenance amount is low, electric signal has very strong anti-interference, use on-site proving convenient, is applicable to forming the measure and control device of dense-medium separation automated system.Currently available technology can not meet above-mentioned requirements.
Summary of the invention
Goal of the invention of the present utility model is to exist environment for use restriction, the existence of pressure type densitometer to be subject to the metering systems such as working condition impact for the radioactive density meter of prior art routine, use inconvenient, the large deficiency that affects the problems such as continuous production of site disposal difficulty, provide a kind of sampling line representative strong, the interior transfer of air pressure of connecting pipe, instrumentation is stablized, not affected by environment and production status, and the dense-medium separation that meets the requirement of dense-medium separation automaton is outstanding
Supernatant liquid density measuring equipment.
Realize above-mentioned purpose by the following technical solutions:
A kind of dense-medium separation density of suspending liquid measurement mechanism, comprise medium material loading pipeline, sampling line, impulse pipeline, measure flange diaphragm connector, differential pressure transmitter, density show case, Switching Power Supply, connection terminal and stube cable, described sampling line is connected with medium feeding tube, with impulse pipeline connection, impulse pipeline is divided into upper impulse pipeline and lower impulse pipeline according to installation site, and differential pressure transmitter is connected on upper impulse pipeline, lower impulse pipeline and is formed online sampling system by measurement flange diaphragm connector; The terminals of differential pressure transmitter are connected with density show case, and density show case is connected with AC power by feed cable, are connected with the density output signal cable of output density signal.
Further, pressure measurement flange diaphragm connector is set to upper and lower two, is connected respectively by kapillary with differential pressure transmitter.
Further, pressure measurement flange diaphragm connector is installed on successively on the flange of upper and lower pilot pipeline and is connected with suspending liquid sampling line.
Further, measure flange diaphragm connector and dense-medium separation suspending liquid and pass through air communication.
Further, described density show case output 4-20mADC signal.
Adopt technique scheme, compared with prior art, this density of suspending liquid measurement mechanism is owing to having adopted online bypass sampling technique, by current stabilization stopple coupon technology, realized the impact that the pressure difference value of measuring up and down flange diaphragm junction is not subject to medium main line change in flow.Field erected density show case, owing to having adopted switch power technology and digital display technique, makes the calibration of on-the-spot range and demarcation easier.This density of suspending liquid measurement mechanism can provide separately according to dense-medium separation need of production, also can form dense-medium separation Density Automatic Control System with automatic control cabinet, in coal separation industry, has good practicality.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present utility model.
In figure, medium feeding tube 1, sampling line 2, upper impulse pipeline 3, lower impulse pipeline 4, measurement flange diaphragm connector 5,6, kapillary 7,8, differential pressure transmitter 9, density show case 10, digital wash 11, densitometer stube cable 12, density output signal cable 13, densitometer feed cable 14, Switching Power Supply 15.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
The utility model is a kind of dense-medium separation density of suspending liquid measurement mechanism, sampling line 2, upper impulse pipeline 3, lower impulse pipeline 4, upper measurement flange diaphragm connector 5, lower measurement flange diaphragm connector 6, differential pressure transmitter 9, density show case 10 etc., consist of, concrete structure is shown in Fig. 1.
Impulse pipeline of the present utility model, as Fig. 1, is set to two, is divided into impulse pipeline 3, lower impulse pipeline 4, and measurement flange diaphragm connector corresponding to it is set to two, is divided into measurement flange diaphragm connector 5 and lower measurement flange diaphragm connector 6.Differential pressure transmitter 9 is placed on main medium material loading pipeline 1 or installs on nigh buildings, with kapillary 7, be connected with upper measurement flange diaphragm connector 5, by kapillary 8, be connected with lower measurement flange diaphragm connector 6, upper measurement flange diaphragm connector 5 is connected with upper impulse pipeline 3, and lower measurement flange diaphragm connector 6 is connected with lower impulse pipeline 4.Measure flange diaphragm and dense-medium separation suspending liquid and pass through air communication, upper and lower two measurement flange diaphragms are delivered to the variation of pressure the pressure chamber of differential pressure transmitter 9 by the silicone oil in kapillary 7,8, differential pressure transmitter 9 changes the physical quantity of its pressure differential to be converted into change in electric.
Upper impulse pipeline 3, lower impulse pipeline 4 are communicated with sampling line 2, and sampling line 2 is connected to form online sampling system with medium feeding tube 1.The terminals of differential pressure transmitter 9 are by densitometer stube cable 12(RVVP3 * 1) be connected with density show case 10, density show case 10 is placed in site operation personnel and easily observes and vibrate on little structures, digital wash 11, Switching Power Supply 15 are installed on density show case 10, density show case 10 is connected to alternating current 220V power supply by feed cable 14, density output signal cable 13(RVVP2 * 1) output 4-20mADC density signal.
The course of work of the present utility model:
According to the actual conditions of the medium feeding tube 1 of production scene, sampling line 2 and upper and lower impulse pipeline 3,4 are installed in the position of selecting vertical height to be greater than 3.5 meters.And then select the place that vibrations are little, environment is good that differential pressure transmitter 9, density show case 10 are installed, densitometer stube cable 12, density output signal cable 13 require cable installation in pipe in wiring, away from forceful electric power and interference source.
Incoming transport 220V power supply arrives density show case 10, its internal switch that closes, and Switching Power Supply 15 produces direct current 24V power supplys, for differential pressure transmitter 9 work.220V power supply gives digital wash 11 power supplies simultaneously.
In process of production, in medium feeding tube 1, be full of dense medium suspension liquid, the variation of its density causes the change of differential pressure between upper and lower measurement flange diaphragm connector 5,6, introduces differential pressure transmitter 9 obtained electric signal corresponding to density value by kapillary 7,8 variations by this differential pressure.
The utility model adapts to various heavy-media coal preparation processes, its density measure scope: 1.000-2.000 gram per centimeter
3; Measuring accuracy ± 0.001 gram per centimeter
3.
Claims (5)
1. a dense-medium separation density of suspending liquid measurement mechanism, comprise medium material loading pipeline, sampling line, impulse pipeline, measure flange diaphragm connector, differential pressure transmitter, density show case, Switching Power Supply, connection terminal and stube cable, it is characterized in that, described sampling line is connected with medium feeding tube, with impulse pipeline connection, impulse pipeline is divided into upper impulse pipeline and lower impulse pipeline according to installation site, and differential pressure transmitter is connected on upper impulse pipeline, lower impulse pipeline and is formed online sampling system by measurement flange diaphragm connector; The terminals of differential pressure transmitter are connected with density show case, and density show case is connected with AC power by feed cable, are connected with the density output signal cable of output density signal.
2. dense-medium separation density of suspending liquid measurement mechanism according to claim 1, is characterized in that, pressure measurement flange diaphragm connector is set to upper and lower two, is connected respectively by kapillary with differential pressure transmitter.
3. dense-medium separation density of suspending liquid measurement mechanism according to claim 1 and 2, is characterized in that, pressure measurement flange diaphragm connector is installed on successively on the flange of upper and lower pilot pipeline and is connected with suspending liquid sampling line.
4. dense-medium separation density of suspending liquid measurement mechanism according to claim 1 and 2, is characterized in that, measures flange diaphragm connector and dense-medium separation suspending liquid and passes through air communication.
5. dense-medium separation density of suspending liquid measurement mechanism according to claim 1, is characterized in that, described density show case output 4-20mADC signal.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420267338.9U CN203838030U (en) | 2014-05-23 | 2014-05-23 | Density measuring device for dense-medium coal dressing suspension liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420267338.9U CN203838030U (en) | 2014-05-23 | 2014-05-23 | Density measuring device for dense-medium coal dressing suspension liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203838030U true CN203838030U (en) | 2014-09-17 |
Family
ID=51515854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420267338.9U Expired - Fee Related CN203838030U (en) | 2014-05-23 | 2014-05-23 | Density measuring device for dense-medium coal dressing suspension liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203838030U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2538610A (en) * | 2015-05-19 | 2016-11-23 | Medeng Res Inst Ltd | Inline multiphase densitometer |
| CN112858096A (en) * | 2021-01-29 | 2021-05-28 | 晨光生物科技集团股份有限公司 | Differential pressure type densimeter measuring and protecting device |
-
2014
- 2014-05-23 CN CN201420267338.9U patent/CN203838030U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2538610A (en) * | 2015-05-19 | 2016-11-23 | Medeng Res Inst Ltd | Inline multiphase densitometer |
| CN112858096A (en) * | 2021-01-29 | 2021-05-28 | 晨光生物科技集团股份有限公司 | Differential pressure type densimeter measuring and protecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20180523 |