CN2699988Y - Buoyancy type concentrated phase classifying fluidized bed density measuring device - Google Patents
Buoyancy type concentrated phase classifying fluidized bed density measuring device Download PDFInfo
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- CN2699988Y CN2699988Y CN 200420025325 CN200420025325U CN2699988Y CN 2699988 Y CN2699988 Y CN 2699988Y CN 200420025325 CN200420025325 CN 200420025325 CN 200420025325 U CN200420025325 U CN 200420025325U CN 2699988 Y CN2699988 Y CN 2699988Y
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- fluidized bed
- sensor
- concentrated phase
- type concentrated
- data acquisition
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Abstract
The utility model relates to a buoyancy type concentrated phase classifying fluidized bed density measuring device which is suitable for fluidized bed dielectric density parameter measurement. The buoyancy type concentrated phase classifying fluidized bed density measuring device comprises a sliding frame fixed to a machine frame. The inner of the sliding frame is provided with a sensor. A protection mechanism is arranged on the stressed contact head of the sensor. The protection mechanism is connected with a buoyancy lifting mechanism by a positioning beam. The buoyancy type concentrated phase classifying fluidized bed density measuring device also comprises a data acquisition device with conventional signal amplification function, filtering wave function, A/D conversion function, display function, high speed data acquisition function and a memory. The data acquisition device connects with the sensor. The measured data is displayed on the data acquisition device by the actions of the protection mechanism and the buoyancy lifting mechanism. The buoyancy type concentrated phase classifying fluidized bed density measuring device has advantages of simple structure, convenient use, favourable effect, high precision and accuracy measuring, high anti-interference capability and wide practicability.
Description
One, technical field
The utility model relates to floatage-type concentrated phase fluidized bed for separation density instrument, is particularly useful for the parameter measurement of fluid bed density of medium.
Two, background technology
The characterisitic parameter of gas one solid concentrated phase fluid bed is measured, because be subjected to the restriction of fluidization conditions and medium solid physical characteristic, the measurement of its parameter is relatively backward always, the density measure of fluid bed is normally used at present is the gas differential pressure method, adopt two probes up and down that insert in the fluid bed, connect the U-shaped pipe that certain water level is housed by tracheae, when the medium fluidisation in the fluid bed, the air pressure that enters according to two probes changes U-shaped pipe water level and makes judgement, though this method can be measured certain parameter, fluctuation is big but it is measured, and accuracy is low, and it is inconsistent to measure display density and practical separation density.The pressure reduction density measuring method is because the difference between fluid and the quasi-fluid, confirm to exist between density value that this measuring method obtains and the actual density value a not fixing difference through ore dressing practice, change with fluidising air velocity, medium solid granularity and water content, this difference is also changing, such measurement data is used for the automatic control of separation system, exists the modeling integrity problem.The expansion rate density measuring method causes the precision of density value low because of the bed boiling reduces the accuracy of measurement volumes.
Three, technology contents
1. goal of the invention
In view of the deficiency that prior art exists, it is strong that the purpose of this utility model provides a kind of antijamming capability, the floatage-type concentrated phase fluidized bed for separation density instrument that measuring accuracy and accuracy are high.
2. technical scheme
The utility model floatage-type concentrated phase fluidized bed for separation density instrument, it comprises the balladeur train that is fixed on the frame, is provided with sensor in the balladeur train, and the stressed contact top of sensor is provided with protection mechanism, and protection mechanism connects buoyancy lifting mechanism by spacing beam; It also comprises conventional signal amplification, filtering, A/D conversion, has Presentation Function and carries out high-speed data acquisition and have the data acquisition unit of memory, and collector is connected with sensor.
The utility model floatage-type concentrated phase fluidized bed for separation density instrument; described protection mechanism comprises transmission rod; transmission rod passes spacing beam, and its below is provided with spring, and the top is provided with lock nut and packing ring; the stressed contact contact jaw of transmission rod and sensor is a plane; buoyancy lifting mechanism comprises probe, is connected with elevating lever on the probe, and the top of elevating lever is connected on the spacing beam; the side is provided with the location pulley of fixing its swing, pops one's head in to be drops.
3. technique effect
The utility model floatage-type concentrated phase fluidized bed for separation density instrument is best suited for the parameter measurement of fluid bed density of medium.Establish the balladeur train of sensor in the employing, by the action of protection mechanism and buoyancy lifting mechanism, demonstrate the data of surveying through data acquisition unit, compared with prior art: the arbitrary degree of depth of elevating mechanism energy measurement fluid bed is to the buoyancy of probe; The location assembly pulley that anti-interference effect has been arranged; Sensor outrange protection structure is arranged; The data acquisition unit that can select sampling period and RS-485 communication interface in 18 μ S～1S scope is arbitrarily arranged, and it is simple in structure, and is easy to use, effective, measuring accuracy and accuracy height, and antijamming capability is strong, has practicality widely.
Four, description of drawings
Fig. 1 is the utility model master TV structure schematic diagram.
Fig. 2 is the utility model plan structure schematic diagram.
Five, the specific embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
The utility model floatage-type concentrated phase fluidized bed for separation density instrument, as shown in the figure, it comprises the elevating mechanism of being made up of probe 1, elevating lever 2, location pulley 3, probe 1 be shaped as drops, it is fixedlyed connected with elevating lever 2, elevating lever 2 tops are connected on the spacing beam 4, and two groups of location pulleys 3 are fixed on the side of elevating lever 2, to prevent the swing of elevating lever 2.Elevating mechanism connects the protection mechanism of being made up of lock nut and packing ring 5, spring 6 and transmission rod 7 by spacing beam 4, and transmission rod 7 passes spacing beam 4, and spring 6 is located at the below of spacing beam 4, and lock nut and packing ring 5 are positioned at spacing beam 4 tops locking transmission rod 7.The protection mechanism bottom is provided with sensor 8, and sensor 8 is selected little range for use and temperature-compensating is arranged, and its force structure is a V-arrangement awl nest, and the stressed ball of placing in the nest is a steel ball, and transmission rod 7 is a plane with stressed contact (steel ball) contact jaw of sensor 8.Sensor 8 is fixedly installed in the balladeur train 9, balladeur train 9 is by being bolted on the frame 10, adopt conventional signal amplification, filtering, A/D conversion, have Presentation Function and carry out high-speed data acquisition and have the data acquisition unit of memory, collector is connected with sensor 8.
Operation principle: in ore dressing is used, the density of fluidizing agent is as pressing fluid measurement, it is the value of an object suffered buoyancy of unit volume when being immersed in the bed, because gas---fixed double phase flow has the character of quasi-fluid, so still adopt this principle as design basis, be immersed in the fluidized-bed layer with a probe 1 of setting volume, be the fluidisation influence that reduces to pop one's head in to its top medium, probe 1 is made into the water droplet shape, the 1 suffered buoyancy of popping one's head in arrives sensor 8 by rigidity elevating lever 2 transmission power, through the amplification of data acquisition unit to signal, calculating buoyancy and volume ratio obtain density value after the links such as filtering.Because elevating lever 2 is subjected to the restriction of sensor 8 ranges, elevating lever 2 there is the requirement that reduces weight, for reducing the influence of ginseng survey volume is also had swedged requirement simultaneously.Two groups of location pulleys 3 make rigid rod 2 can only do elevating movement.4 many-sided effect of spacing beam move to buoyancy the top of sensor 8 with it; With its installation basis as sensor 8 outrange protection mechanisms; With it as the protection gag lever post 2; when because gravity, the high-speed motion of rigid rod 2 and probe 1 part such as grade impact and artificial other factors when making that sensor 8 is stressed to exceed setting value; protection spring 6 is compressed; rigid rod 2 contacts with location pulley 3, power is delivered to also makes sensor 8 stressed no longer increases on the frame 10 because there not being further displacement.Stop nut 5 is used for regulating the prestressing force of protection spring 6 in the protection mechanism; with locking nut 5 fixed positions; the effect of packing ring is to prevent that screw thread and other part on the transmission rod 7 from producing excessive additional friction power; protection spring 6 can use ring spring or leaf spring; one end of transmission rod 7 has disk; by it power is passed to sensor 8; external force acts on the different position of sensor 8; measurement result is inequality; after the stress point of sensor 8 is determined; how to guarantee that it is one of instrument design key of success that external force acts on this aspect accurately, the stress point of this equipment design is the top of stressed ball, for reducing Precision Machining number of packages amount; reduce manufacturing cost; disk on the transmission rod 7 contacts with the stress point of stressed ball with the plane, when the misalignment stress point of transmission rod 7, still can guarantee the stressed invariant position of sensor 8.Sensor 8 is selected little range for use and temperature-compensating is arranged, and its force structure is a V-arrangement awl nest, and the stressed ball of placing in the nest is a steel ball.Balladeur train 9 is used to install above-mentioned each part and adjustment fathoms, and frame 10 can be installed on the fluid bed and provide support for balladeur train 9.
Claims (4)
1. floatage-type concentrated phase fluidized bed for separation density instrument, it is characterized in that: it comprises the balladeur train (9) that is fixed on the frame (10), be provided with sensor (8) in the balladeur train (9), the stressed contact top of sensor (8) is provided with protection mechanism, and protection mechanism connects buoyancy lifting mechanism by spacing beam (4); It also comprises conventional signal amplification, filtering, A/D conversion, has Presentation Function and carries out high-speed data acquisition and have the data acquisition unit of memory, and collector is connected with sensor (8).
2. floatage-type concentrated phase fluidized bed for separation density instrument according to claim 1, it is characterized in that: described protection mechanism comprises transmission rod (7), and transmission rod (7) passes spacing beam (4), and its below is provided with spring 6, and the top is provided with lock nut and packing ring (5).
3. floatage-type concentrated phase fluidized bed for separation density instrument according to claim 1 and 2 is characterized in that: described transmission rod (7) is a plane with the stressed contact contact jaw of sensor (8).
4. floatage-type concentrated phase fluidized bed for separation density instrument according to claim 1 and 2, it is characterized in that: described buoyancy lifting mechanism comprises probe (1), be connected with elevating lever (2) on the probe (1), the top of elevating lever (2) is connected on the spacing beam (4), and the side is provided with the location pulley (3) of fixing its swing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420025325 CN2699988Y (en) | 2004-03-12 | 2004-03-12 | Buoyancy type concentrated phase classifying fluidized bed density measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420025325 CN2699988Y (en) | 2004-03-12 | 2004-03-12 | Buoyancy type concentrated phase classifying fluidized bed density measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2699988Y true CN2699988Y (en) | 2005-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420025325 Expired - Fee Related CN2699988Y (en) | 2004-03-12 | 2004-03-12 | Buoyancy type concentrated phase classifying fluidized bed density measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN2699988Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255140A (en) * | 2020-10-10 | 2021-01-22 | 柳州工学院 | Intelligent liquid density detector |
-
2004
- 2004-03-12 CN CN 200420025325 patent/CN2699988Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255140A (en) * | 2020-10-10 | 2021-01-22 | 柳州工学院 | Intelligent liquid density detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050518 |