CN217359478U - Device for measuring density of dense medium in coal preparation process - Google Patents
Device for measuring density of dense medium in coal preparation process Download PDFInfo
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- CN217359478U CN217359478U CN202220227846.9U CN202220227846U CN217359478U CN 217359478 U CN217359478 U CN 217359478U CN 202220227846 U CN202220227846 U CN 202220227846U CN 217359478 U CN217359478 U CN 217359478U
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- medium
- floater
- steel pipe
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- 239000003245 coal Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 238000005516 engineering process Methods 0.000 abstract description 8
- 208000034699 Vitreous floaters Diseases 0.000 description 23
- 239000000725 suspension Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 10
- 239000007788 liquid Substances 0.000 description 6
- 238000007667 floating Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000001739 density measurement Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a measure device of dense medium density in coal dressing technology, including the medium bucket, medium bucket bottom both ends are equipped with blast air mouth of pipe, medium output pipe respectively, top in the medium bucket is equipped with steel pipe one and steel pipe two, be equipped with float one in the steel pipe, be equipped with laser range finder one directly over float one, be equipped with float two in the steel pipe two, be equipped with laser range finder two directly over float two. The utility model discloses a two floats and two laser range finders utilize Archimedes buoyancy principle can reach the density of dense medium fast, and equipment is simple, simple to operate, low cost, and the measuring result is accurate, and the price/performance ratio is very high.
Description
Technical Field
The utility model relates to a density measurement technical field particularly, relates to a measure device of dense medium density in coal dressing technology.
Background
In a coal preparation plant, the coal preparation process is the soul of the coal preparation plant, and the efficiency of coal preparation can be greatly improved and the washing quality of coal can be improved by improving the automation level in the coal preparation process. The coal preparation process has been explored for a long time by generations, and a plurality of process methods are generated. The dense medium coal separation technology is the most efficient coal separation technology so far, and the principle of the technology is that the coal and the gangue are different in density, suspension liquid with the density between the coal and the gangue is configured to serve as a medium, and the coal and the gangue are separated by using the difference of gravity. Therefore, the method is the key for realizing the dense medium coal separation by accurately measuring the dense medium density on line in real time.
Patent CN203414381U discloses a detect dense medium suspension differential pressure density device on line, set up power input port on PLC control display box, the port is downloaded to the procedure, signal output port and signal input port, the both ends of signal line are connected with sensor and PLC control display box respectively, join in marriage respectively on the upper and lower tip of perpendicular to by-pass line and adorn the ring flange, manual valve joins in marriage on the ring flange of tip down, two pressure sensing diaphragm seal installation respectively are on perpendicular to the upper and lower side pressure taking port on the by-pass line lateral wall, two capillary pipelines that are full of silicon oil communicate two pressure sensing diaphragms with the sensor respectively. The measurement principle of this patent is differential pressure density measurement, detects different pressures through utilizing the pressure sensing diaphragm of installing on the upper and lower side pressure port of getting perpendicularly to the by pass pipeline lateral wall to calculate the differential pressure and obtain dense medium density. However, the patent needs to install equipment such as a flange plate, a manual valve, a pressure sensing diaphragm, a capillary line, a sensor and the like, and needs to open a hole on the vertical bypass pipeline to complete the installation, and the method has complicated installation steps and relatively high cost.
Patent CN211374412U discloses a dense medium suspension density on-line measuring device, which includes a steady flow box, a measuring cylinder, an electronic tension scale and a lead screw. One end of a sampling pipe provided with a sampling valve is arranged on a pipeline for pumping the heavy medium suspension, and the other end of the sampling pipe is connected with a flow stabilizing box. The heavy medium suspension liquid enters the measuring cylinder through a discharging pipe connected to the steady flow box, an overflow port and a discharging pipe provided with a discharging valve are arranged on the measuring cylinder, the measuring cylinder is hung on the electronic tension scale, the electronic tension scale is hung at one end of the lead screw, and the other end of the lead screw is hung and fixed. The suspension density is obtained by reading the electronic tensile balance and the suspension volume measured in advance. The measurement principle of this patent is mass to volume density. Although the principle is simple, the method relates to a plurality of devices, including a flow stabilizing box, a measuring cylinder, an electronic tension scale, a lead screw and the like, the installation and use processes are complex, the general environment of a coal preparation plant is complex, and once a fault occurs, the maintenance is difficult.
Therefore, how to measure the density of the dense medium is a technical problem to be solved by the coal preparation process, which is simple, quick, accurate, effective and low in cost.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem among the correlation technique, the utility model provides a measure dense medium density's device in coal dressing technology can overcome prior art's the above-mentioned not enough.
In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:
a device for measuring density of a heavy medium in a coal preparation process comprises a medium barrel, wherein a blast pipe opening and a medium output pipe opening are respectively arranged at two ends of the bottom of the medium barrel, a first steel pipe and a second steel pipe are arranged at the top in the medium barrel, a first floater is arranged in the first steel pipe, a first laser distance meter is arranged right above the first floater, a second floater is arranged in the second steel pipe, and a second laser distance meter is arranged right above the second floater.
Further, the first steel pipe and the second steel pipe are vertically fixed.
Furthermore, the bottom areas of the first floater and the second floater are equal and the heights of the first floater and the second floater are different.
Further, the height of the second floater is 0.1 mm-2 mm.
Furthermore, the first laser range finder is located on a wall right above the first floater, and the second laser range finder is located on a wall right above the second floater.
The utility model has the advantages that: the utility model discloses a two floats and two laser range finder utilize Archimedes buoyancy principle can reach the density of dense medium fast, and equipment is simple, simple to operate, low cost, and measuring result is accurate, and the price/performance ratio is very high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an apparatus for measuring density of dense media in a coal preparation process according to an embodiment of the present invention;
in the figure: 1. the device comprises a medium barrel 2, a blast pipe opening 3, a medium output pipe opening 4, a first floater 5, a first steel pipe 6, a second floater 7, a second steel pipe 8, a first laser range finder 9 and a second laser range finder 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
As shown in fig. 1, according to the embodiment of the utility model provides a measure device of dense medium density in coal dressing technology, including medium bucket 1, 1 bottom both ends of medium bucket are equipped with blast pipe mouth 2, medium output mouth of pipe 3 respectively, top in the medium bucket 1 is equipped with steel pipe one 5 and two 7 of steel pipe, be equipped with float one 4 in the steel pipe one 5, be equipped with laser range finder one 8 directly over float one 4, be equipped with float two 6 in the steel pipe two 7, be equipped with laser range finder two 9 directly over float two 6.
In the embodiment, the first steel pipe 5 and the second steel pipe 7 are vertically fixed and communicated up and down, so that the float is limited to move around in the suspension, and the moving range of the float is limited in the steel pipes.
In the embodiment, the bottom areas of the first floater 4 and the second floater 6 are equal and have different heights, and the bottom areas S of the floaters are equal Floating body And height h Floating body Can be obtained by measurement.
In the embodiment, the height of the second floater 6 is 0.1 mm-2 mm, the height of the second floater 6 is extremely small and almost level with the liquid level of the suspension, and the purpose is to measure the height h from the laser range finder to the floater 2 The distance between the laser range finder and the liquid level of the suspension is approximately regarded as the distance between the laser range finder and the liquid level of the suspension, so that the problem that the laser reflection cannot be realized due to the fact that the laser range finder directly irradiates the liquid level is solved.
In an embodiment, the first laser distance meter 8 is located on a wall directly above the first floater 4, and the second laser distance meter 9 is located on a wall directly above the second floater 6. The first laser distance measuring instrument 8 measures the distance from the distance measuring instrument to the first floater 4, and the second laser distance measuring instrument 9 measures the distance from the distance measuring instrument to the second floater 6.
In the example shown in fig. 1, the air-blast nozzle 2 continuously blows air into the medium barrel in order to mix the suspension sufficiently without settling of the suspended particles over time.
In other embodiments, the laser rangefinder may be replaced by another instrument capable of measuring the difference in the height of the two floats above the water.
In other embodiments, the float may be replaced with another object capable of floating on the surface of the dense medium suspension.
For the convenience of understanding the above technical solutions of the present invention, the above technical solutions of the present invention are explained in detail through specific use modes below.
When specifically using, according to the utility model a measure device of dense medium density in coal dressing technology, its measuring step specifically is as follows:
the measuring method comprises the following steps:
step A: measuring the distance h from the laser range finder to the float I4 1 Distance h from laser range finder to float II 6 2 ；
And B: measuring the height h of the float I4 Floating body ；
And C: bottom area S of measuring float I4 Floating body ；
Step D: measuring the mass m of the float-4 Floating body ；
Step E: calculating the height h of the floater to discharge 4 parts of boiled water Row board ＝h Floating body -(h 2 -h 1 )。；
Step F: according to Archimedes buoyancy principle, mg ═ rho gV Row board Can be derived
The density rho of the suspension can be obtained by substituting the data measured in the step C, D, E into the formula Liquid for treating urinary tract infection 。
To sum up, with the aid of the above technical scheme of the utility model, the utility model discloses an utilize archimedes buoyancy principle can reach the density of dense medium fast for two floats and two laser range finders, equipment is simple, simple to operate, low cost, and measuring result is accurate, and the price/performance ratio is very high.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The device for measuring the density of the dense medium in the coal preparation process is characterized by comprising a medium barrel (1), wherein two ends of the bottom of the medium barrel (1) are respectively provided with a blast pipe opening (2) and a medium output pipe opening (3), the top in the medium barrel (1) is provided with a first steel pipe (5) and a second steel pipe (7), the first steel pipe (5) is internally provided with a first floater (4), the first floater (4) is directly above the first floater (8), the second steel pipe (7) is internally provided with a second floater (6), and the second floater (6) is directly above the second floater (6) and is provided with a second laser range finder (9).
2. The device for measuring the density of the dense medium in the coal preparation process according to claim 1, wherein the first steel pipe (5) and the second steel pipe (7) are vertically fixed.
3. The device for measuring the density of the heavy medium in the coal preparation process according to the claim 1, characterized in that the bottom areas of the first floater (4) and the second floater (6) are equal and different in height.
4. The device for measuring the density of the dense medium in the coal preparation process according to claim 3, wherein the height of the second floater (6) is 0.1-2 mm.
5. The device for measuring the density of the heavy medium in the coal preparation process according to claim 1, wherein the first laser distance meter (8) is positioned on the wall right above the first floater (4), and the second laser distance meter (9) is positioned on the wall right above the second floater (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220227846.9U CN217359478U (en) | 2022-01-27 | 2022-01-27 | Device for measuring density of dense medium in coal preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220227846.9U CN217359478U (en) | 2022-01-27 | 2022-01-27 | Device for measuring density of dense medium in coal preparation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217359478U true CN217359478U (en) | 2022-09-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220227846.9U Expired - Fee Related CN217359478U (en) | 2022-01-27 | 2022-01-27 | Device for measuring density of dense medium in coal preparation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217359478U (en) |
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2022
- 2022-01-27 CN CN202220227846.9U patent/CN217359478U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20220902 |