CN101819123B - Ore pulp concentration meter based on buoyancy measurement principle - Google Patents
Ore pulp concentration meter based on buoyancy measurement principle Download PDFInfo
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- CN101819123B CN101819123B CN2010101497297A CN201010149729A CN101819123B CN 101819123 B CN101819123 B CN 101819123B CN 2010101497297 A CN2010101497297 A CN 2010101497297A CN 201010149729 A CN201010149729 A CN 201010149729A CN 101819123 B CN101819123 B CN 101819123B
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- ore pulp
- concentration meter
- pulp concentration
- ball float
- sensor
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Abstract
The invention relates to an ore pulp concentration meter based on a buoyancy measurement principle, which comprises a floating ball, a lifting rod, a sensor and an execution mechanism, wherein the floating ball is arranged on the lifting rod; the floating ball is fixedly connected to the tail end of the lower part of the lifting rod, the lifting rod is suspended at the bottom of the sensor, and the sensor is arranged at the output end of the actuating mechanism; the actuating mechanism drives the lifting rod to ascend and descend, so that the floating ball at the tail end below the lifting rod ascends to separate from a measured medium or descends to sink into the measured medium, and the sensor detects the ascending and descending stress of the floating ball. Compared with the existing ore pulp concentration meter, the ore pulp concentration meter can intermittently measure the ore pulp concentration, reduces the contact time of the concentration meter and the ore pulp, has no problems of calcium accumulation and blockage, and has high reliability; the working principle is simple, the structure is stable and reliable, the process index is favorably acquired, the power consumption is reduced, and the production index and the recovery rate are improved.
Description
Technical field
The present invention relates to a kind of surveying instrument of detection material concentration, specifically, relate to a kind of ore pulp concentration meter based on buoyancy measurement principle.
Background technology
In the ore dressing industry, when ore was crushed to a certain degree, concentration and granularity had great influence to the economy of producing.Pulp density is important parameter in the ore-dressing technique production run.Ore-dressing technique has concentration kettle method, oven dry weight method, differential pressure method, gamma-rays absorption process to the classic method of the concentration detection employing of ore pulp both at home and abroad.Preceding two kinds of methods detect only for hand sampling, and human factor is many, and it is big to detect error; Two kinds of backs are higher to the ore pulp conditional request that detects, and bubble in the ore pulp or impurity all will cause bigger influence to testing result.
Under the constant situation of ore proportion, pulp density and pulp density have the funtcional relationship of monodrome, at present in Automatic Measurement Technique, all are that the density of measuring ore pulp replaces pulp density therefore.
Principle based on the buoyancy measurement: Archimedes' principle, the object that promptly is immersed in the liquid is subjected to buoyancy upwards, and the buoyancy size equals the weight that this object arranges liquid.Therefore,, just can learn density of liquid, just know the concentration of liquid as long as measure the buoyancy that is immersed in the object in the liquid.
Therefore, the present invention has proposed a kind of device of measuring based on the pulp density of buoyancy measurement principle according to this principle.
Summary of the invention
The purpose of this invention is to provide a kind of ore pulp concentration meter based on buoyancy measurement principle.
Ore pulp concentration meter of the present invention comprises ball float, lifting arm, sensor and topworks; Ball float is fixedly connected on the below end of lifting arm, and lifting arm hangs on sensor base, and sensor is installed in the output terminal of topworks; The rising and the decline of topworks's driving lifting arm make the terminal ball float in lifting arm below climb away measured medium or measured medium is sunk in decline, and it is stressed that the sensor ball float rises and descends.
Described topworks can adopt this area equipment commonly used, and this equipment can provide the rectilinear motion of specifying stroke, as cylinder, electric pushrod etc.;
Described sensor can be selected this area pressure transducer commonly used for use, according to the needs of ore pulp concentration meter of the present invention, and the preferred drawing and pressing type LOAD CELLS of the present invention;
Described ball float can select for use the hollow of this area all kinds of materials commonly used or medicine ball as ball float, and the hollow ball of preferred metal, plastics or rubber material commonly used is as ball float.
In addition, ore pulp concentration meter of the present invention can also comprise isolates bucket, described isolations bucket lower opening, be arranged on ball float around, external world's ore pulp is to the influence of ball float when avoiding measuring.
Preferably, described isolation bucket bottom opening, after ball float descended, its lower edge still was positioned at the top that isolates the bucket bottom.
Ore pulp concentration meter of the present invention can also comprise wash tub pipe, and described wash tub pipe is arranged on the top of ball float, can wash the ore pulp of ball float outer wall.
In addition, described ore pulp concentration meter can also comprise signal converter, described signal converter is used for the signal of conversion sensor, is the electric signal (as the signal of 4-20mA, 1-5V) accepted of instrument or other signals of standard communication modes with the conversion of signals of sensor.
According to Archimedes' principle, the measuring process of ore pulp concentration meter of the present invention is as follows:
1. demarcate:
Weight was not P when ball float sank to measured medium
10(unit: gram), weight is P when sinking to measured medium
20At this moment, obtain the ore pulp of certain volume with a graduated cylinder, the volume of ore pulp is L, and the weight that claims ore pulp to add graduated cylinder is M
a, the weight of graduated cylinder own is M
b, then:
Ore pulp weight: M=M
a-M
b
Pulp density:
Ball float is subjected to buoyancy in ore pulp, the mechanical balance formula is:
P
10-P
20＝ρV
0
So the volume that sinks to ball float under the liquid level is:
2. measure:
1) to record the tare weight of ball float be P to sensor
1(unit: gram)
2) under topworks's positive interaction, ball float sinks to measured medium (diagram dotted line position) fully, and recording ball float weight after waiting to stablize is P
2
3) under topworks's retroaction, ball float rises, and breaks away from the measured medium liquid level;
4) wash tub pipe is opened, flushing ball float outer wall;
5) result of calculation is finished one-shot measurement.
It is as follows that pulp density calculates process:
The density of ore pulp:
The concentration of ore pulp:
In the formula, the density of δ-ore, unit: gram per centimeter
3Or ton/rice
3
Ore pulp concentration meter of the present invention is simple in structure, can realize simply and easily that the pulp density in the mineral processing craft process is measured, and the pulp density that is particularly useful in the open containers is measured, also can be by increasing pulp density in the utility appliance measuring channel.Compare with existing ore pulp concentration meter, ore pulp concentration meter of the present invention can carry out intermittence to pulp density to be measured, and has reduced the time that densimeter contacts with ore pulp, does not tie calcium and blocking problem, the reliability height of instrument; Principle of work is simple, and Stability Analysis of Structures, reliable helps to obtain technic index, reduces power consumption, improves the production target and the recovery.
Description of drawings
Fig. 1 is the structural representation of ore pulp concentration meter specific embodiment of the present invention.
Among the figure: 1, topworks; 2, lifting arm; 3, ball float; 4, sensor; 5, signal converter; 6, water valve; 7, wash tub pipe; 8, isolate bucket.
Embodiment
Following examples are used to illustrate the present invention, but are not used for limiting the scope of the invention.
Embodiment 1
The ore pulp concentration meter of present embodiment is made of topworks (1), lifting arm (2), ball float (3), sensor (4), signal converter (5), water valve (6), wash tub pipe (7), isolation bucket (8), specifically sees shown in Figure 1.
Described topworks (1) is an electric pushrod, and described sensor (4) is the drawing and pressing type LOAD CELLS; The output terminal of topworks (1) connects sensor (4), sensor (4) lower end is connected with lifting arm (2) upper end, a ball float (3) is fixed in the lower end of lifting arm (2), the top of ball float (3) is provided with wash tub pipe (7), water valve (6) is set on the wash tub pipe (7), is provided with around the ball float (3) and isolates bucket (8).
Signal converter (5) is arranged on this ore pulp concentration meter by a support, is used for the pressure signal that sensor (4) records is converted into the electric signal of 4-20mA, 1-5V.
When measuring, advanced rower is fixed, and described demarcation is undertaken by following step:
Ball float (3) when not sinking to measured medium weight be P
10(unit: gram), weight is P when sinking to measured medium
20Obtain the ore pulp of certain volume with a graduated cylinder, the volume of ore pulp is L, and the weight that claims ore pulp to add graduated cylinder is M
a, the weight of graduated cylinder own is M
b, then:
Ore pulp weight: M=M
a-M
b
Pulp density:
Ball float (3) is subjected to buoyancy in ore pulp, the mechanical balance formula is:
P
10-P
20＝ρV
0
So the volume that sinks to ball float under the liquid level (3) is:
Measure then, the tare weight that sensor (4) records ball float (3) is P
1Under topworks (1) positive interaction, ball float (3) sinks to measured medium (dotted line position shown in Figure 1) fully, and recording ball float weight after waiting to stablize is P
2
Under topworks (1) retroaction, ball float (3) rises, and breaks away from the measured medium liquid level;
Water valve (6) is opened, wash tub pipe (7) flushing ball float (3) outer wall;
Result of calculation is finished one-shot measurement.
It is as follows that pulp density calculates process:
The density of ore pulp:
The concentration of ore pulp:
In the formula, the density of δ-ore, unit: gram per centimeter
3Or ton/rice
3
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (7)
1. the ore pulp concentration meter based on buoyancy measurement principle comprises ball float (3), lifting arm (2), sensor (4) and topworks (1); Ball float (3) is fixedly connected on the below end of lifting arm (2), and lifting arm (2) hangs on sensor (4) bottom, and sensor (4) is installed in the output terminal of topworks (1); The rising and the decline of topworks (1) driving lifting arm (2) make the terminal ball float (3) in lifting arm (2) below climb away measured medium or measured medium is sunk in decline, and sensor (4) detects the stressed of ball float (3) rising and decline.
2. ore pulp concentration meter as claimed in claim 1 is characterized in that, described ore pulp concentration meter also comprises isolates bucket (8), described isolations barrel (8) lower opening, be arranged on ball float (3) around.
3. ore pulp concentration meter as claimed in claim 2 is characterized in that, described isolation bucket (8) bottom opening, and after ball float (3) descended, its lower edge still was positioned at the top that isolates bucket (8) bottom.
4. ore pulp concentration meter as claimed in claim 1 or 2 is characterized in that, described ore pulp concentration meter also comprises wash tub pipe (7), and described wash tub pipe (7) is arranged on the top of ball float (3), can wash the ore pulp of ball float (3) outer wall.
5. ore pulp concentration meter as claimed in claim 1 or 2 is characterized in that, described ore pulp concentration meter also comprises signal converter (5), and described signal converter (5) is an electric signal with the conversion of signals of sensor (4).
6. ore pulp concentration meter as claimed in claim 4 is characterized in that, described ore pulp concentration meter also comprises signal converter (5), and described signal converter (5) is an electric signal with the conversion of signals of sensor (4).
7. the application of the arbitrary described ore pulp concentration meter of claim 1-6 is characterized in that, is used to measure the pulp density in the open containers, or pulp density in the measuring channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101497297A CN101819123B (en) | 2010-04-19 | 2010-04-19 | Ore pulp concentration meter based on buoyancy measurement principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101497297A CN101819123B (en) | 2010-04-19 | 2010-04-19 | Ore pulp concentration meter based on buoyancy measurement principle |
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| Publication Number | Publication Date |
|---|---|
| CN101819123A CN101819123A (en) | 2010-09-01 |
| CN101819123B true CN101819123B (en) | 2011-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101497297A Expired - Fee Related CN101819123B (en) | 2010-04-19 | 2010-04-19 | Ore pulp concentration meter based on buoyancy measurement principle |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818748B (en) * | 2012-09-13 | 2015-08-05 | 中国科学院海洋研究所 | The online solid load analyzer of wireless data sending |
| CN104237069B (en) * | 2014-09-19 | 2017-03-29 | 沈阳建筑大学 | Diver |
| CN105424548B (en) * | 2015-11-11 | 2018-05-04 | 中国石油天然气股份有限公司 | Density measuring instrument and using method thereof |
| CN105300835B (en) * | 2015-11-19 | 2018-05-29 | 中国石油集团西部钻探工程有限公司 | Liquid density on-line measurement device |
| CN108872010A (en) * | 2018-09-05 | 2018-11-23 | 泉州市全通光电科技有限公司 | A kind of automatic weighing formula digital display fluid density counter device and its Density Detection method |
| CN110044771A (en) * | 2019-05-14 | 2019-07-23 | 广东世创金属科技股份有限公司 | A kind of micro measure of the change device of Liquid Concentration and its measurement method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2521610Y (en) * | 2002-01-30 | 2002-11-20 | 周兵胜 | On-line ore pulp concentration meter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU1270197A (en) * | 1995-12-27 | 1997-07-28 | A Ahlstrom Oy | Method and apparatus for determining physical variables of slurry or liquid |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2521610Y (en) * | 2002-01-30 | 2002-11-20 | 周兵胜 | On-line ore pulp concentration meter |
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| CN101819123A (en) | 2010-09-01 |
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Granted publication date: 20110914 Termination date: 20170419 |