CN114307264A - Device and method for rapidly detecting height of clarified water layer of slime water thickener - Google Patents
Device and method for rapidly detecting height of clarified water layer of slime water thickener Download PDFInfo
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- CN114307264A CN114307264A CN202111548613.5A CN202111548613A CN114307264A CN 114307264 A CN114307264 A CN 114307264A CN 202111548613 A CN202111548613 A CN 202111548613A CN 114307264 A CN114307264 A CN 114307264A
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Abstract
The invention discloses a device and a method for rapidly detecting the height of a clarified water layer of a slime water thickener, wherein the device comprises a settling tank and a plurality of siphons, the bottom of the settling tank is provided with a bottom flow port, the side wall of the settling tank is provided with a feeding port, the upper end of the settling tank is provided with an overflow weir, and the side wall of the overflow weir is provided with an overflow port; one end of each siphon is arranged in the settling tank, the siphons are parallel to each other and are at equal intervals, and the depth of the siphons inserted into the settling tank is increased progressively in sequence. The invention has the advantages of simple structure, convenient operation, rapid measurement and accurate determination of the height of the clarified water layer of the slime water.
Description
Technical Field
The invention belongs to the technical field of slime water sedimentation, and relates to a device and a method for rapidly detecting the height of a clarified water layer of a slime water thickener.
Background
Coal resources are the mainstay of the energy industry in our country. The consumption of the energy source accounts for 50 to 60 percent of the total energy consumption of China. Efficient and clean separation and utilization of coal resources are the main direction of the coal industry in China at present. The wet coal separation technology is a main means for coal separation and is widely applied to coal separation plants in China. The sedimentation and clarification treatment of the slime water, which is an important byproduct in the wet coal separation process, is an important link in the production process of coal separation plants. However, most coal preparation plants have more technical problems in this link. The slime water contains a large amount of clay minerals of hydrophilic clay, which makes settling and clarification of the slime water difficult. When the slime water is settled on site, the settling effect of the slime water after the reagent is added is usually evaluated by manually detecting the height of a clear water layer of the thickener through a probe rod, but the method has the problems of strong subjectivity, large error, poor timeliness and the like. The method has the advantages of quickly and accurately detecting the height of the clarified water layer of the slime water thickener, improving the sedimentation effect of the slime water and improving the production efficiency of a coal preparation plant.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a device and a method for rapidly detecting the height of a clarified water layer of a slime water thickener, so as to solve the problem that the height of the clarified water layer is difficult to judge when slime water is settled after a medicament is added during on-site slime water settling treatment in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
a device for rapidly detecting the height of a clarified water layer of a slime water thickener comprises a settling tank and a plurality of siphons, wherein the bottom of the settling tank is provided with a bottom flow port, the side wall of the settling tank is provided with a feeding port, the upper end of the settling tank is provided with an overflow weir, and the side wall of the overflow weir is provided with an overflow port; one end of each siphon is arranged in the settling tank, the siphons are parallel to each other and are at equal intervals, and the depth of the siphons inserted into the settling tank is increased progressively in sequence.
The siphon is vertical to the liquid level of the settling tank, and the plurality of siphons are coplanar.
The number of the siphon pipes is 7, the siphon pipes are arranged in the settling tank in parallel at a transverse interval of 20cm, the 7 siphon pipes are respectively a first siphon pipe, a second siphon pipe, a third siphon pipe, a fourth siphon pipe, a fifth siphon pipe, a sixth siphon pipe and a seventh siphon pipe, the distance between the end part of the first siphon pipe and the upper end of the overflow weir is 50cm, the distance between the second siphon pipe and the upper end of the overflow weir is 75cm, and then the water suction port of each siphon pipe extends downwards by 25 cm.
And a valve is arranged at one end of the siphon pipe, which is far away from the settling tank.
A method for rapidly detecting the height of a clarified water layer of a slime water thickener comprises the following steps:
coal slime water enters a settling tank from a feeding port and is added with a medicament for settling; after sedimentation, sequentially opening valves from the first siphon to the seventh siphon, collecting siphoned samples and correspondingly numbering, and then detecting the turbidity of the samples by using a turbidity meter; when the turbidity Z of the siphoned sample is less than or equal to 200 +/-20 NTU, the sample is clear, and the sample above the turbidity range is turbid; and comparing the turbidity of all samples, wherein when the front turbidity Z of the adjacent samples is less than or equal to 200 +/-20 NTU and the rear turbidity Z is higher than the turbidity range, the height of the clarification layer of the coal slime water is the average value of the distances between the water suction ports of the corresponding two siphon pipes and the upper port of the settling tank.
Has the advantages that: the invention utilizes a row of detachable clear siphons to be inserted into the settling tank, when the slime water enters the settling tank and is settled for a certain time after being added with the medicament, the siphons are inserted into the settling tank, and the height of the slime water clarification layer is quickly judged by beating a valve of the siphons and through the turbidity of the liquid flowing out. The versatility of the simple device is realized. The measuring result is accurate and quick. The method solves the problem of difficult control of the height of a clarification layer in the sedimentation of slime water on site, and realizes ocean sampling and sample measurement with high efficiency and low cost. The height of a clarification layer when the slime water is settled is simply and quickly measured.
Drawings
FIG. 1 is a schematic diagram of the structure of the device of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the device for rapidly detecting the sedimentation effect of slime water comprises a sedimentation tank 12 and 7 siphon pipes, wherein a bottom flow port 10 is formed in the bottom of the sedimentation tank 12, a feeding port 8 is formed in the side wall of the sedimentation tank 12, an overflow weir 11 is arranged at the upper end of the sedimentation tank 12, and an overflow port 9 is formed in the side wall of the overflow weir 11; one end of each siphon is arranged in the settling tank 12, 7 siphons are arranged in the settling tank 12 in parallel at a transverse interval of 20cm, the 7 siphons are respectively a first siphon 1, a second siphon 2, a third siphon 3, a fourth siphon 4, a fifth siphon 5, a sixth siphon 6 and a seventh siphon 7, and valves are arranged at one ends of the 7 siphons far away from the settling tank 12; wherein, the distance between the water suction port of the first siphon 1 and the upper port of the settling tank 12 is 50cm, the distance between the second siphon 2 and the upper port of the settling tank 12 is 75cm, and then the water suction port of each siphon extends downwards by 25 cm. The siphon is perpendicular to the liquid level of the settling tank 12, and the plurality of siphons are coplanar.
A method for rapidly detecting the sedimentation effect of slime water comprises the following steps:
coal slime water enters a settling tank 12 from a feeding port 8 and is added with a medicament for settling; after settling for a period of time, sequentially opening valves of the first siphon pipe 1 to the seventh siphon pipe 7, collecting siphoned samples and numbering the samples correspondingly, and then detecting the turbidity of the samples by using a turbidity meter; when the turbidity Z of the siphoned sample is less than or equal to 200 +/-20 NTU, the sample is clear, and the sample above the turbidity range is turbid; comparing the turbidity of all samples, when the front turbidity Z of the adjacent samples is less than or equal to 200 +/-20 NTU and the rear turbidity Z is higher than the turbidity range, the height of the clarification layer of the coal slime water is the average value of the distance between the water suction ports of the corresponding two siphon pipes and the upper port of the settling tank 12.
The turbidity Z of the samples was measured continuously in the settler at several depths h as shown in table 1.
TABLE 1 measurement results
| Serial number | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| h/cm | 50 | 75 | 100 | 125 | 150 | 175 | 200 |
| Z/NTU | 190 | 240 | 380 | 630 | 1120 | 1730 | 2570 |
Comparing all the siphoned samples, the turbidity of the sample is 190NTU when the depth is 50cm, the turbidity of the sample is 240NTU when the depth is 75cm, and the height of the clear layer of the slime water is { (50+75)/2} -, 62.5 cm.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (5)
1. The utility model provides a device for short-term test coal slime water thickener clarifies water layer height which characterized in that: the device comprises a settling tank (12) and a plurality of siphons, wherein a bottom flow port (10) is arranged at the bottom of the settling tank (12), a feeding port (8) is arranged on the side wall of the settling tank (12), an overflow weir (11) is arranged at the upper end of the settling tank (12), and an overflow port (9) is arranged on the side wall of the overflow weir (11); one end of each siphon is arranged in the settling tank (12), the siphons are parallel and equidistant, and the depth of the siphons inserted into the settling tank (12) is increased progressively.
2. The device for rapidly detecting the height of the clarified water layer of the coal slime water thickener according to claim 1, is characterized in that: the siphon is vertical to the liquid level of the settling tank (12), and the plurality of siphons are coplanar.
3. The device for rapidly detecting the height of the clarified water layer of the coal slime water thickener according to claim 1, is characterized in that: the siphon is 7, with horizontal interval 20cm parallel mount inside subsider (12), 7 siphons are first siphon (1), second siphon (2), third siphon (3), fourth siphon (4), fifth siphon (5), sixth siphon (6), seventh siphon (7) respectively, wherein, the distance of the mouth that absorbs water of first siphon (1) and subsider (12) upper port is 50cm, the mouth that absorbs water of second siphon (2) and subsider (12) upper port's distance is 75cm, the mouth that absorbs water of later each siphon extends 25cm downwards in proper order.
4. The device for rapidly detecting the height of the clarified water layer of the coal slime water concentrator as claimed in claims 1-3, wherein: and a valve is arranged at one end of the siphon pipe, which is far away from the settling tank (12).
5. A method for rapidly detecting the height of a clarified water layer of a slime water thickener is characterized by comprising the following steps: the method comprises the following steps:
coal slime water enters a settling tank (12) from a feeding port (8) and is added with a medicament for settling; after sedimentation, sequentially opening valves of a first siphon (1) to a seventh siphon (7), collecting siphoned samples and numbering the samples correspondingly, and then detecting the turbidity of the samples by using a turbidity meter; when the turbidity Z of the siphoned sample is less than or equal to 200 +/-20 NTU, the sample is clear, and the sample above the turbidity range is turbid; comparing the turbidity of all samples, when the front turbidity Z of the adjacent samples is less than or equal to 200 +/-20 NTU and the rear turbidity Z is higher than the turbidity range, the height of the clarification layer of the slime water is the average value of the distances between the water suction ports of the corresponding two siphon pipes and the upper port of the settling tank (12).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116899279A (en) * | 2023-09-13 | 2023-10-20 | 江西亚非国际矿冶研究有限公司 | Intelligent mineral separation thickener |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116899279A (en) * | 2023-09-13 | 2023-10-20 | 江西亚非国际矿冶研究有限公司 | Intelligent mineral separation thickener |
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