CN215064759U - Ore pulp liquid level measuring device - Google Patents
Ore pulp liquid level measuring device Download PDFInfo
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- CN215064759U CN215064759U CN202121626215.6U CN202121626215U CN215064759U CN 215064759 U CN215064759 U CN 215064759U CN 202121626215 U CN202121626215 U CN 202121626215U CN 215064759 U CN215064759 U CN 215064759U
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Abstract
The utility model discloses an ore pulp liquid level measurement device, including the test tube, can dismantle respectively at test tube top and lateral part and be connected with flat membrane pressure transmitter and inflation assembly, be equipped with into thick liquid mouth bottom the test tube, be equipped with a plurality of gas vents of evenly arranging along its circumference on the test tube lateral wall between entering thick liquid mouth and inflation assembly. The utility model utilizes the pressure and balance generated by the air pressure in the detecting tube and the ore pulp at the exhaust port to lead the air pressure change to reflect the change of the liquid level of the ore pulp, and the liquid level of the ore pulp is detected by measuring the air pressure, thereby avoiding the floating ball from being corroded and attached by the ore pulp, and having higher measuring precision; the flat membrane pressure transmitter is used, and the flat membrane structure is adopted, so that the contact area with a medium is increased, the temperature range is wide, the overload capacity and corrosion resistance are high, the high-stability transmission is realized, the anti-interference capacity is high, and the measurement precision is higher.
Description
Technical Field
The utility model relates to an ore pulp liquid level measurement technical field especially relates to an ore pulp liquid level measurement device.
Background
In the non-ferrous metal industry, 90% of the minerals are processed by flotation processes, which are of no help to the overall mining production. The liquid level of the ore pulp is one of the main factors influencing the flotation effect, so the detection and the control of the ore pulp are very critical.
At present, some domestic ore pulp liquid level detection devices (for example, the ore pulp liquid level detection device shown in CN 212030685U is authorized to announce the novel ore pulp liquid level detection device shown in 205691205U is authorized to announce the number), all put into the float toward the ore pulp basically, thereby measure the change of ore pulp liquid level with the displacement of all kinds of sensors detection float, but various problems that can not fine solution detection in-process met like this: first, the erosion and adhesion of the slurry can affect the activity and measurement accuracy of the device. Secondly, in order to deal with the problem that the device is stuck due to the attachment of ore pulp, a flushing device needs to be additionally arranged, so that inconvenience is caused. And thirdly, during flotation and mineral separation, the stirring of ore pulp and the floating of air bubbles can cause fluctuation, so that the fluctuation of a measured value is large.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's weak point, provide an ore pulp liquid level measurement device that measurement accuracy is higher.
The utility model provides an ore pulp liquid level measurement device, including the test tube, can dismantle respectively at test tube top and lateral part and be connected with flat membrane pressure transmitter and inflation assembly, be equipped with into thick liquid mouth bottom the test tube, be equipped with a plurality of gas vents of evenly arranging along its circumference on the test tube lateral wall between entering thick liquid mouth and inflation assembly.
The detection tube comprises a hollow tube and a hollow probe which are communicated with each other from top to bottom, the flat membrane pressure transmitter is arranged at the top of the hollow tube, the inflation assembly is connected to the side wall of the hollow tube, the slurry inlet is arranged at the bottom of the hollow probe, and the exhaust port is arranged on the side wall of the hollow probe.
In order to ensure the stability of inflation, the inflation assembly comprises an air compressor and an air storage tank, an inflation inlet communicated with the interior of the hollow pipe is formed in the side wall of the hollow pipe, the air outlet of the air compressor is communicated with the air inlet of the air storage tank through a pressure reducing valve, and the air outlet of the air storage tank is communicated with the inflation inlet through a throttle valve.
In order to conveniently and visually check the air pressure value in the detection pipe, the top of the hollow pipe is also provided with an air pressure meter.
Compared with the prior art, the utility model has the advantages of it is following:
the pressure and balance generated by the air pressure in the detection pipe and the ore pulp at the exhaust port are utilized to enable the air pressure to change so as to reflect the change of the liquid level of the ore pulp, and the liquid level of the ore pulp is detected by measuring the air pressure, so that the floating ball is prevented from being corroded and attached by the ore pulp, and the measurement precision is higher.
The flat membrane pressure transmitter is used, and the flat membrane structure is adopted, so that the contact area with a medium is increased, the temperature range is wide, the overload capacity and the corrosion resistance are high, the high-stability transmission is realized, the anti-interference capacity is high, and the measurement precision is higher.
When carrying out level measurement, carry fresh gas for the check pipe often through aerifing the subassembly, under the effect of pressure equilibrium force, unnecessary gas then discharges from the gas vent in the check pipe, can effectively reduce the phenomenon that original gas compressed under the ore pulp pressure effect generates heat in the check pipe to avoid gas to be heated the expansion and arouse the problem that the gas pressure changes in the check pipe, make flat membrane pressure transmitter measured numerical value more accurate.
Drawings
Figure 1 is the utility model discloses well ore pulp liquid level measurement device's structural schematic.
The labels shown in the figures and the corresponding component names are:
1. a detection tube; 11. a hollow tube; 12. a hollow probe; 13. a pulp inlet; 14. an exhaust port; 15. an inflation inlet; 16. a measurement port; 17. a dial interface;
2. a flat membrane pressure transmitter;
3. an inflation assembly; 31. an air compressor; 32. a gas storage tank; 33. a pressure reducing valve; 34. a throttle valve;
4. a barometer;
a. a flotation cell.
Detailed Description
As can be seen from figure 1, the pulp liquid level measuring device of the utility model comprises a detecting tube 1, a flat membrane pressure transmitter 2, an inflation component 3 and an air pressure gauge 4,
the detection tube 1 comprises a hollow tube 11 and a hollow probe 12 which are communicated and arranged up and down, the bottom of the hollow probe 12 is provided with a pulp inlet 13, the side wall of the hollow probe 12 above the pulp inlet 13 is provided with a plurality of exhaust ports 14 which are uniformly arranged along the circumference of the hollow probe, the side wall of the hollow tube 11 is provided with an inflation port 15 which is communicated and arranged with the inside of the hollow tube, the top of the hollow tube 11 is provided with a measurement port 16 and a dial interface 17,
the flat diaphragm pressure transducer 2 is detachably connected to the measurement port 16,
the inflation assembly 3 comprises an air compressor 31 and an air storage tank 32, an air outlet of the air compressor 31 is communicated with an air inlet of the air storage tank 32 through a pressure reducing valve 33 and a pipeline, an air outlet of the air storage tank 32 is communicated with the inflation inlet 15 through a throttle valve 34 and a pipeline,
the barometer 4 is detachably connected to the dial interface 17.
Use the utility model discloses carry out liquid level measurement's method, including following step:
s1, measuring the distance h1 between the top of the detection tube 1 and the exhaust port 12;
s2, vertically inserting the detecting tube 1 into the ore pulp in the flotation tank a, wherein the ore pulp enters the detecting tube 1 from the pulp inlet 13 at the bottom of the detecting tube 1;
s3, when the exhaust port 14 on the pipe 1 to be detected is completely arranged in the ore pulp, the stability of the detecting pipe 1 is ensured and the detecting pipe 1 is fixedly connected to the flotation tank a, and the distance H from the top of the detecting pipe 1 to the bottom of the flotation tank a is measured;
s4, installing the flat membrane pressure transmitter 2 at the measuring port 16 at the top of the detection tube 1, connecting the inflation assembly 3 to the inflation port 15 through a pipeline, and starting the inflation assembly 3 to inflate the interior of the detection tube 1;
s5, under the action of the inflation assembly 3, the air pressure in the detection pipe 1 is increased, the ore pulp is pressed to the exhaust port 14, the inflation assembly 3 continuously inflates air, redundant air is exhausted from the exhaust port 14, and the air pressure on the upper side of the exhaust port 14 in the detection pipe 1 and the ore pulp pressure on the lower side reach balance; when small bubbles continuously emerge from the ore pulp around the detection tube 1, the flat-film pressure transmitter 2 is opened to measure the air pressure P in the detection tube 1Qi (Qi)；
S6, calculating the distance h2 between the pulp liquid level and the air outlet 14 at the bottom of the detection pipe 1 through the following formula,
h2＝Pqi (Qi)/(ρPulp and its production process×g)，
In the formula: rhoPulp and its production processThe density of ore pulp in the flotation tank is shown, and g is the local gravity acceleration;
s6, calculating the pulp liquid level h through the following formula:
h＝H-h1+h2。
below, we replace the ore pulp with the water right the utility model discloses it is right to carry out the simulation experiment, when inlet pressure is 0.275mpa, adjusts the ore pulp liquid level in the flotation cell a, as shown in following table 1, obtains a set of flat membrane pressure transmitter 2 and records the air pressure data in the test tube 1:
TABLE 1
As can be seen from the table 1 above, the utility model discloses it is sensitive and more accurate to the liquid level change.
The utility model discloses corrosion resistance is good.
The utility model discloses an in the use, still can install the current stabilizer in the 1 outside of test tube, subduct undulant and bring the difficulty for measuring, make to measure more accurately.
Claims (4)
1. The utility model provides a pulp liquid level measurement device, includes test tube (1), its characterized in that: the top and the side part of the detection tube are respectively detachably connected with a flat membrane pressure transmitter (2) and an inflation assembly (3), the bottom of the detection tube is provided with a slurry inlet (13), and the side wall of the detection tube between the slurry inlet and the inflation assembly is provided with a plurality of exhaust ports (14) which are uniformly arranged along the circumference of the detection tube.
2. The pulp level measuring device of claim 1, wherein: the detection tube comprises a hollow tube (11) and a hollow probe (12) which are communicated with each other from top to bottom, the flat membrane pressure transmitter is arranged at the top of the hollow tube, the inflation assembly is connected to the side wall of the hollow tube, the slurry inlet is arranged at the bottom of the hollow probe, and the exhaust port is arranged on the side wall of the hollow probe.
3. The pulp level measuring device of claim 2, wherein: the inflation assembly comprises an air compressor (31) and an air storage tank (32), an inflation inlet (15) communicated with the interior of the hollow pipe is formed in the side wall of the hollow pipe, an air outlet of the air compressor is communicated with an air inlet of the air storage tank through a pressure reducing valve (33), and an air outlet of the air storage tank is communicated with the inflation inlet through a throttle valve (34).
4. The pulp level measuring device of claim 2, wherein: the top of the hollow pipe is also provided with a barometer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121626215.6U CN215064759U (en) | 2021-07-16 | 2021-07-16 | Ore pulp liquid level measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121626215.6U CN215064759U (en) | 2021-07-16 | 2021-07-16 | Ore pulp liquid level measuring device |
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| Publication Number | Publication Date |
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| CN215064759U true CN215064759U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121626215.6U Active CN215064759U (en) | 2021-07-16 | 2021-07-16 | Ore pulp liquid level measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114689145A (en) * | 2022-06-01 | 2022-07-01 | 山东信通铝业有限公司 | Aluminum mill molten aluminum liquid level height detection alarm device |
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2021
- 2021-07-16 CN CN202121626215.6U patent/CN215064759U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114689145A (en) * | 2022-06-01 | 2022-07-01 | 山东信通铝业有限公司 | Aluminum mill molten aluminum liquid level height detection alarm device |
| CN114689145B (en) * | 2022-06-01 | 2022-08-16 | 山东信通铝业有限公司 | Aluminum mill molten aluminum liquid level height detection alarm device |
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