CN203414381U - Device for detecting differential pressure density of dense medium suspension liquid on line - Google Patents
Device for detecting differential pressure density of dense medium suspension liquid on line Download PDFInfo
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- CN203414381U CN203414381U CN201320574237.1U CN201320574237U CN203414381U CN 203414381 U CN203414381 U CN 203414381U CN 201320574237 U CN201320574237 U CN 201320574237U CN 203414381 U CN203414381 U CN 203414381U
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Abstract
The utility model discloses a device for detecting differential pressure density of a dense medium suspension liquid on line, and belongs to detection equipment. A power supply input port, a program download port, a signal output port and a signal input port are formed in a PLC (Programmable Logic Controller) control display cabin; two ends of a signal line are respectively connected with a sensor and the PLC control display cabin; flange discs are respectively arranged at the upper and lower end parts of a vertical bypass pipeline; a manual valve is assembled on the flange disc at the lower end part; two pressure sensing membranes are respectively arranged on upper and lower side pressure taking ports in the side wall of the vertical bypass pipeline; the two pressure sensing membranes are respectively communicated with the sensor through two capillary tubes full of silicone oil. The device is reasonable in structure, high in detection precision, good in stability, easy to regulate and control, and is applicable to on-line real-time detection on the dense medium suspension liquid in a coal preparation plant.
Description
Technical field
The utility model belongs to checkout equipment, relates generally to a kind of online device that detects coal preparation plant's heavy-media suspension density.
Background technology
At present, the online detection of dense-medium separation density has two kinds of isotopic density gage and differential density meters.Isotopic density gage has radioactivity, and workman is had to certain harm, need obtain national health administrative authority and examine, and must prepare at the scene the room deposited separately during installation, produce and maintenance cost higher, radioactive source is more difficult.Differential density meter mostly adopts and is directly installed on qualified medium main pipeline.Because the flow velocity of main pipeline dense medium is very fast, can cause two problems: the one, particle media can cause serious wearing and tearing to diaphragm; The 2nd, can cause the unstable of large measuring error and measurement, even cannot measure.
Summary of the invention
The purpose of this utility model is exactly the problem existing for above-mentioned prior art, exploitation and design a kind of online detection heavy-media suspension differential density device, reach can quick and precisely automatically detect heavy-media suspension density, meet coal preparation plant's need of production, object that cost performance is high.
Basic Design of the present utility model is, at PLC, control on show case power input mouth, program download port, signal output port and signal input port are set, the two ends of signal wire are connected with the signal input port that PLC controls on show case with sensor signal output terminal respectively; Vertically on the upper and lower end of by-pass line, be equipped with respectively ring flange, manually-operated gate is fitted on the ring flange on bottom, two pressure-sensitive diaphragms seal respectively and are arranged on vertical upper and lower side-draw pressure port on by-pass line sidewall, and described two pressure-sensitive diaphragms are positioned on same perpendicular line, two capillary lines that are full of silicone oil are communicated with two pressure-sensitive diaphragms respectively with sensor, so far form the online heavy-media suspension differential density device that detects.
The beneficial effects of the utility model are: rational in infrastructure, detect degree of accuracy high, and good stability, is easy to regulation and control, can adapt to the online detection in real time of density of heavy medium of coal preparation plant.
Accompanying drawing explanation
Accompanying drawing is to detect online heavy-media suspension differential density apparatus structure schematic diagram.
Piece number explanation in figure:
1, PLC control show case, 2, power input mouth, 3, program download port, 4, signal output port, 5, signal input port, 6, signal wire, 7, manually-operated gate, 8, ring flange, 9, vertically to by-pass line, 10, pressure-sensitive diaphragm, 11, capillary line, 12, sensor.
Embodiment
Below in conjunction with accompanying drawing, the utility model optimum implementation is described in detail.A kind of online detection heavy-media suspension differential density device, at PLC, control on show case 1 power input mouth 2, program download port 3, signal output port 4 and signal input port 5 are set, the two ends of signal wire 6 are connected with the signal input port 5 that PLC controls on show case 1 with sensor 12 signal output parts respectively; Vertically on the upper and lower end of by-pass line 9, be equipped with respectively ring flange 8, manually-operated gate 7 is fitted on the ring flange 8 on bottom, two pressure-sensitive diaphragms 10 seal respectively and are arranged on vertical upper and lower side-draw pressure port on by-pass line 9 sidewalls, and described two pressure-sensitive diaphragms 10 are positioned on same perpendicular line, two capillary lines 11 that are full of silicone oil are communicated with two pressure-sensitive diaphragms 10 respectively with sensor 12.Described is vertically 1 meter to vertical range between the equipped ring flange 8 in the upper and lower end of by-pass line 9.Described two pressure-sensitive diaphragm 10 spacing are 0. 6 meters.Described sensor 12 height and positions are lower than pressure-sensitive diaphragm 10 height and positions of downside, and its vertical height spacing is 0. 2 meters.
Online detection while using, utilize upper and lower ring flange 8 vertically to by-pass line 9, to be communicated with and to be arranged on heavy-media suspension main pipeline, by manually-operated gate 7, regulate the flow of the vertical heavy-media suspension in by-pass line 9 of flowing through, according to flow rate calculation flow velocity, determine flow velocity optimum value.When heavy-media suspension is flowed through upper and lower pressure-sensitive diaphragm 10, can experience expander, draw process, when avoiding producing vortex phenomenon, can also prevent the influence error that granule medium or bubble coalescence are brought.
The device course of work: sensor 02 produces the current signal of standard suspending liquid according to pressure-sensitive diaphragm 10 induction pressures, by signal wire 6, be transferred to PLC and control show case 1, PLC in PLC control show case 1 is according to density conversion formula, calculate the actual density value of heavy-media suspension, at PLC, control show case 1 display screen and show.Then by density value being converted to corresponding current signal, by wire, reach central station of floating dock, density value is carried out to a large amount of collections, the dynamic stability of analytic density, the aperture of corresponding change manually-operated gate 7 and programmed algorithm design.According to the result showing with manually compare, according to deviation, by 3 pairs of program relevant parameters of program download port, adjust.
Claims (4)
1. one kind is detected heavy-media suspension differential density device online, it is characterized in that controlling on show case (1) power input mouth (2), program download port (3), signal output port (4) and signal input port (5) being set at PLC, the two ends of signal wire (6) are connected with the signal input port (5) that PLC controls on show case (1) with sensor (12) signal output part respectively; Vertically on the upper and lower end of by-pass line (9), be equipped with respectively ring flange (8), manually-operated gate (7) is fitted on the ring flange (8) on bottom, two pressure-sensitive diaphragms (10) seal respectively the upper and lower side-draw being arranged on vertically on by-pass line (9) sidewall and press on port, and described two pressure-sensitive diaphragms (10) are positioned on same perpendicular line, two capillary lines (11) that are full of silicone oil are communicated with two pressure-sensitive diaphragms (10) respectively with sensor (12).
2. online detection heavy-media suspension differential density device according to claim 1, is characterized in that described is vertically 1 meter to vertical range between the equipped ring flange (8) in the upper and lower end of by-pass line (9).
3. online detection heavy-media suspension differential density device according to claim 1, is characterized in that described two pressure-sensitive diaphragms (10) spacing is 0. 6 meters.
4. online detection heavy-media suspension differential density device according to claim 1, is characterized in that described sensor (12) height and position is lower than pressure-sensitive diaphragm (10) height and position of downside, and its vertical height spacing is 0. 2 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320574237.1U CN203414381U (en) | 2013-09-04 | 2013-09-04 | Device for detecting differential pressure density of dense medium suspension liquid on line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320574237.1U CN203414381U (en) | 2013-09-04 | 2013-09-04 | Device for detecting differential pressure density of dense medium suspension liquid on line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203414381U true CN203414381U (en) | 2014-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320574237.1U Expired - Fee Related CN203414381U (en) | 2013-09-04 | 2013-09-04 | Device for detecting differential pressure density of dense medium suspension liquid on line |
Country Status (1)
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| CN (1) | CN203414381U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370555A (en) * | 2016-10-10 | 2017-02-01 | 山西汾西矿业（集团）有限责任公司 | Densitometer device for coal dressing system |
| CN108195716A (en) * | 2017-12-25 | 2018-06-22 | 攀枝花钢企欣宇化工有限公司 | Brine strength on-line measuring device and detection method |
| 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 |
| CN113617516A (en) * | 2021-06-21 | 2021-11-09 | 中国矿业大学 | Dense medium density control device for coal preparation plant and use method |
| CN114594201A (en) * | 2020-12-07 | 2022-06-07 | 中国科学院沈阳自动化研究所 | Non-contact multi-channel ore pulp concentration online detection system and method |
-
2013
- 2013-09-04 CN CN201320574237.1U patent/CN203414381U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370555A (en) * | 2016-10-10 | 2017-02-01 | 山西汾西矿业（集团）有限责任公司 | Densitometer device for coal dressing system |
| CN108195716A (en) * | 2017-12-25 | 2018-06-22 | 攀枝花钢企欣宇化工有限公司 | Brine strength on-line measuring device and detection method |
| CN114594201A (en) * | 2020-12-07 | 2022-06-07 | 中国科学院沈阳自动化研究所 | Non-contact multi-channel ore pulp concentration online detection system and method |
| 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 |
| CN113617516A (en) * | 2021-06-21 | 2021-11-09 | 中国矿业大学 | Dense medium density control device for coal preparation plant and use method |
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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 |
Granted publication date: 20140129 Termination date: 20140904 |
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| EXPY | Termination of patent right or utility model |