CN212663890U - Adjustable flotation device - Google Patents
Adjustable flotation device Download PDFInfo
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- CN212663890U CN212663890U CN202020423768.0U CN202020423768U CN212663890U CN 212663890 U CN212663890 U CN 212663890U CN 202020423768 U CN202020423768 U CN 202020423768U CN 212663890 U CN212663890 U CN 212663890U
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Abstract
The utility model discloses an adjustable flotation device, include: flotation device cell body, agitating unit, scrape foam device, telescoping device, level gauge and controller, the controller with the telescoping device is connected for according to the liquid level information of level gauge feedback controls telescoping device's flexible, the position height that makes the foam device of scraping changes the synchronization adjustment along with the liquid level position. The utility model discloses in, through the setting of telescoping device, level gauge and controller, the position height that makes the foam device of scraping is along with liquid level position change synchronous adjustment, guarantees to scrape the foam device and effectively strikes off the foam on ore pulp surface.
Description
Technical Field
The utility model relates to a flotation machine technical field, more specifically relates to an adjustable flotation machine.
Background
The flotation machine is a short name of a flotation machine and is mechanical equipment for completing a flotation process. In the production process of the potash fertilizer, raw ore pulp and a specific reagent are added into a flotation machine, small NaCl particles in the raw ore pulp and the specific reagent are attached to foam through air agitation of the flotation machine and float to the surface of the ore pulp, the slurry is scraped by a foam scraping system, the reserved useful ore pulp is subjected to concentration and solid-liquid separation procedures, is decomposed and crystallized, is thrown by a centrifugal machine, and is dried to produce a finished product KCl. The flotation process is used as the most key ring in the production process of the potash fertilizer, after flotation, the quality and the yield of a subsequent finished product KCl are directly influenced by the content of NaCl in useful ore pulp, and in order to improve the yield and the quality of the finished product KCl, the content of NaCl in the useful ore pulp (standard: NaCl is less than or equal to 8%) needs to be reduced in the flotation process.
In actual production, due to the fact that the ore forming speed and concentration of natural potassium ore are different, the content proportion of each substance in raw ore pulp is different, the flow of ore pulp for collecting raw brine in the subsequent process is not adjustable, the liquid level of the ore pulp in a flotation machine generates different position heights in the flotation process, a foam scraping device on the flotation machine is fixed in a rigid mode and cannot be automatically adjusted along with the position of the liquid level of the ore pulp, the liquid level of the ore pulp is insufficient, the foam scraping device cannot effectively scrape NaCl foam on the surface of the ore pulp, the NaCl content in useful ore pulp after flotation is too high, the standard that the NaCl cannot reach the standard is less than or equal to 8%, the subsequent crystallization effect is poor, resource waste is caused, and the KCl recovery rate is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an adjustable flotation device to solve among the prior art because the ore pulp liquid level is not enough in the flotation device, scrape the problem that the foam device can't effectively strike off to the NaCl foam on ore pulp surface.
In order to solve the technical problem, the utility model adopts the following technical scheme: an adjustable flotation machine comprising: the flotation machine tank body, a stirring device, a foam scraping device, a telescopic device, a liquid level meter and a controller, wherein the stirring device comprises a stirring motor arranged at the top of the flotation machine tank body and a main shaft which is in transmission connection with the stirring motor and extends into the flotation machine tank body from the top end of the flotation machine tank body; the froth scraping device is arranged at two sides of the top of the tank body of the flotation machine and comprises a scraper motor and a scraper, and the scraper motor is in transmission connection with a first end of the scraper; the telescopic device is fixedly connected with the foam scraping device through a tray support, so that the position height of the foam scraping device is adjusted through the telescopic device; the liquid level meter is used for measuring the pulp liquid level in the cell body of the flotation machine and feeding back liquid level information to the controller; the controller is connected with the telescopic device and used for controlling the telescopic device to stretch according to the liquid level information fed back by the liquid level meter, so that the position height of the foam scraping device is synchronously adjusted along with the change of the liquid level position.
Preferably, the telescopic device comprises two hydraulic telescopic rods, wherein one hydraulic telescopic rod is fixed with the scraper motor of the foam scraping device through a tray support, and the other hydraulic telescopic rod is fixed with the second end of the scraper of the foam scraping device through the tray support.
Preferably, the telescopic device is fixedly installed on a structure erected on the ground.
Preferably, the hydraulic telescopic rod is an electric hydraulic telescopic rod.
Preferably, the controller is a PID controller.
Preferably, the gauge is a float gauge.
Preferably, the cell body of the flotation machine consists of a fixed cell body and a movable cell body arranged on the upper part of the fixed cell body, the movable cell body is hermetically connected with the fixed cell body, and the movable cell body consists of rectangular frames positioned at the upper end and the lower end and a flexible connection positioned at the middle part.
Preferably, the rectangular frame at the lower end is fixed with the upper part of the fixed groove body through a bolt.
Preferably, the rectangular frame of the upper end is fixedly connected with the tray support.
Compared with the prior art, the utility model provides a pair of adjustable flotation device has following advantage: through the arrangement of the telescopic device, the liquid level meter and the controller, the position height of the foam scraping device is synchronously adjusted along with the change of the liquid level position, and the foam on the surface of the ore pulp is effectively scraped by the foam scraping device; through the arrangement of the movable tank body, the position height of the tank body of the flotation machine is synchronously adjusted along with the change of the liquid level position, and the phenomenon of slurry turning or too low liquid level of ore pulp is avoided.
Drawings
Fig. 1 is the utility model provides a structural schematic diagram of an adjustable flotation machine.
Fig. 2 is a schematic structural diagram of an adjustable flotation machine according to another embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like elements and techniques of the present invention so that advantages and features of the present invention may be more readily understood when implemented in a suitable environment. The following description is an embodiment of the present invention, and other embodiments related to the claims that are not explicitly described also fall within the scope of the claims.
Fig. 1 shows a schematic structural diagram of an adjustable flotation machine provided by the present invention.
As shown in fig. 1, the adjustable flotation machine comprises: flotation device cell body 10, agitating unit 20, scrape foam device 30, telescoping device 40, level gauge and controller, agitating unit 20 is including setting up in the agitator motor 21 at flotation device cell body 10 top, stretch into the inside main shaft 22 of flotation device cell body 20 from flotation device cell body 10 top with agitator motor 21 transmission connection. Under the driving of the stirring motor 21, the main shaft 22 performs air agitation on the ore pulp in the flotation machine tank 10, so that some ore particles such as NaCl small particles and the like are attached to the foam and float to the surface of the ore pulp.
The froth scraping device 30 is arranged at two sides of the top of the flotation machine tank body 10 and comprises a scraper motor 31 and a scraper 32, and the scraper motor 31 is in transmission connection with a first end of the scraper 32. Under the drive of the scraper motor 31, the scraper 32 scrapes off the foam on the surface of the ore pulp. In actual production, the froth scraping device 30 may be a set, and is disposed at a certain side position of the top of the flotation machine tank 10, or may be two sets, and is respectively disposed at two sides of the top of the flotation machine tank 10, so as to scrape froth from two sides of the flotation machine tank 10.
The telescopic device 40 is fixedly connected with the foam scraping device 30 through the tray bracket 50, so that the position height of the foam scraping device 30 can be adjusted through the telescopic device 40.
The liquid level meter is used for measuring the ore pulp liquid level in the flotation machine tank body 10 and feeding back liquid level information to the controller. The liquid level meter can be a float type liquid level meter, a floating ball is used as a liquid level detection unit, the vertical movement of the liquid level meter is converted into the change of the angle of the corner sensor through mechanical connection, and then the change is converted into a direct current signal through an electronic circuit to be output, and the direct current signal is fed back to the controller to be displayed and output a control signal. The float-type liquid level meter can effectively overcome the false liquid level formed by the foam in the cell body of the flotation machine, and is particularly ideal for the liquid level measurement of ore pulp. The float level gauge may be mounted on the inner wall of the flotation cell tank while avoiding the working space of the scraper 32 and the main shaft 22.
The controller is connected with the telescopic device 40 and used for controlling the telescopic device 40 to stretch according to the liquid level information fed back by the liquid level meter, so that the position height of the foam scraping device 30 is synchronously adjusted along with the change of the liquid level position.
The controller is a PID controller, which is a common feedback loop component in industrial control applications, and consists of a proportional unit P, an integral unit I and a derivative unit D, and is simple and easy to understand, and does not require a precise system model and other prerequisites in use, thus becoming the most widely used controller.
The telescopic device 40 comprises two hydraulic telescopic rods, wherein one hydraulic telescopic rod is fixed with the scraper motor 31 of the foam scraping device 30 through the tray bracket 50, and the other hydraulic telescopic rod is fixed with the second end of the scraper 32 of the foam scraping device 30 through the tray bracket 50.
The hydraulic telescopic rod is an electric hydraulic telescopic rod and is controlled by a controller, the hydraulic telescopic rod is fixedly installed on a structural body 60 erected on the ground, the structural body 60 is a fixed steel frame outside the flotation machine tank body 10, and the hydraulic telescopic rod is fixed on the lower side of the structural body 60.
According to the technical scheme, a liquid level meter is installed on the inner wall of the flotation machine tank body 10 according to actual conditions, and liquid level information is fed back to the PID controller for centralized calculation. The scraper motor 31 and the scraper 32 are fixed through a tray support 50 respectively arranged at the second ends of the scraper motor 31 and the scraper 32, and two electric hydraulic telescopic rods are additionally arranged for connecting the tray support 50 with the structural body 60. After the PID controller compares the liquid level position calculation result with the set parameters, the PID controller outputs control signals to the two electric hydraulic telescopic rods to perform automatic adjustment, so that the position height of the foam scraping device 30 is synchronously adjusted to the optimal height along with the change of the liquid level position, the foam scraping device 30 is guaranteed to be effectively contacted with foam, the foam is effectively scraped, the problem of slurry scraping or idling is avoided, and the quality and the yield of subsequent finished products KCl are improved.
According to the field observation for many years, when the flow of ore pulp is unstable, the phenomenon that the pulp overflows from a tank body of the flotation machine or the liquid level is lower and the foam cannot be scraped exists. Simultaneously, when the ore pulp liquid level was crossed low, even adopt adjustable to scrape the foam device, scrape the foam device and effectively contact with the foam, nevertheless because blockking on flotation device cell body upper portion, scrape the foam device and still can't get rid of the foam, cause the potash fertilizer to float and select, the excessive of NaCl remains, consequently, the utility model discloses reform transform flotation device cell body 10, make it can be along with highly independently adjusting of liquid level position.
Fig. 2 shows a schematic structural diagram of an adjustable flotation machine in another embodiment provided by the present invention.
As shown in fig. 2, the flotation cell tank 10 is composed of a fixed tank 11 and a movable tank 12 mounted on the upper portion of the fixed tank 11, the movable tank 12 is hermetically connected with the fixed tank 11, and the movable tank 12 is composed of a rectangular frame 121 at the upper and lower ends and a flexible joint 122 at the middle portion. The lower rectangular frame 121 is fixed to the upper portion of the fixed tank 11 by bolts. The upper rectangular frame 121 is fixedly connected with the tray bracket 50, and the tray bracket 50 is connected with the telescopic device 40, so that the position and height of the movable trough body 12 are controlled by the telescopic device 40.
The design of the movable tank body 12 is that after the height measurement of the foam scraping device, a part of the upper part of the original tank body of the flotation machine is cut off and replaced by the movable tank body with the closed flexible connection. The length and width of the movable tank body 12 are the same as those of the original flotation machine tank body. The soft connection 122 in the middle part is made of composite materials such as silicon (fluorine) rubber with excellent performance, polytetrafluoroethylene, alkali-free fiber cloth, aluminum silicate fiber with good heat insulation performance and the like through a special process, has the characteristics of high temperature resistance, corrosion resistance and pressure resistance, and can be applied to the design of a tank body of a flotation machine.
Through optimizing cell body part structure, reform transform original fixed cell body into movable cell body, equally according to PID controller feedback signal, carry out the position altitude mixture control of flotation device cell body, cell body part position height is along with liquid level position change synchronous adjustment to the optimum height, avoids turning over thick liquid or ore pulp liquid level phenomenon excessively low.
The technical proposal provided by the utility model transforms the original mechanical fixed foam scraping device into an automatic adjusting foam scraping device, which automatically adjusts along with the position change of the liquid level; the tank body part is transformed into an automatic lifting type tank body, automatic adjustment is carried out along with the change of the position of the liquid level, the effective scraping of the foam scraping device on the foam is guaranteed, the technical scheme is most economical, cost-effective and technically realizable, not only the cost is reduced, but also the operation is simple, the flotation machine can be favorable for the standard production, the product grade and the yield are obviously improved, the waste of raw ores is reduced, the recovery rate is obviously improved, and the following concrete description is made by taking the production of potash fertilizer as an example:
after the test tracking and data analysis and transformation of the members in the group in half a year, the content of NaCl is obviously reduced to less than 8 percent of the requirement of the production process after flotation.
The economic effect is as follows: according to 90T/h of belt (after flotation), the subsequent process can contain less 1.8T/h of NaCl, if the NaCl enters the subsequent process, the solubility of KCl is 34 g and the solubility of NaCl is 36 g under the standard temperature condition of 20 ℃, 1.8T of NaCl needs to be washed away when the 1.8T of NaCl is removed, which is equivalent to the recovery of 1.8T/h of KCl, about 1.48 million tons of KCl are recovered annually, and 2978.4 ten thousand yuan is saved according to the calculation of market value.
In addition, because the adjustable flotation tank is improved, the phenomenon of abrasion of the scraper is avoided in the process of slurry scraping in the flotation process, and the influence on the scraper is almost small, so that the maintenance cost of easily damaged parts such as the replacement of the scraper and the like every year is saved, and the cost can be saved by 4.32 ten thousand yuan every year according to the contract price signed by the operation and maintenance every year.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.
Claims (9)
1. An adjustable flotation machine, comprising: a flotation machine tank body (10), a stirring device (20), a foam scraping device (30), a telescopic device (40), a liquid level meter and a controller,
the stirring device (20) comprises a stirring motor (21) arranged at the top of the flotation machine tank body (10) and a main shaft (22) which is in transmission connection with the stirring motor (21) and extends into the flotation machine tank body (10) from the top end of the flotation machine tank body (10);
the froth scraping device (30) is arranged at two sides of the top of the flotation machine tank body (10) and comprises a scraper motor (31) and a scraper (32), and the scraper motor (31) is in transmission connection with a first end of the scraper (32);
the telescopic device (40) is fixedly connected with the foam scraping device (30) through a tray bracket (50) so as to adjust the position height of the foam scraping device (30) through the telescopic of the telescopic device (40);
the liquid level meter is used for measuring the ore pulp liquid level in the flotation machine tank body (10) and feeding back liquid level information to the controller;
the controller is connected with the telescopic device (40) and used for controlling the telescopic device (40) to stretch according to the liquid level information fed back by the liquid level meter, so that the position height of the foam scraping device (30) is synchronously adjusted along with the change of the liquid level position.
2. The adjustable flotation machine according to claim 1, wherein the telescoping device (40) comprises two hydraulic telescoping rods, one of which is fixed to the scraper motor (31) of the froth scraping device (30) via a tray support (50), and the other of which is fixed to the second end of the scraper (32) of the froth scraping device (30) via a tray support (50).
3. The adjustable flotation machine according to claim 2, wherein the telescoping device (40) is fixedly mounted on a structure (60) erected on the ground.
4. The adjustable flotation machine of claim 3, wherein the hydraulic telescoping rod is an electro-hydraulic telescoping rod.
5. The adjustable flotation machine of claim 1, wherein the controller is a PID controller.
6. The adjustable flotation machine of claim 1, wherein the level gauge is a float-type level gauge.
7. The adjustable flotation machine according to claim 1, wherein the flotation machine tank (10) is composed of a fixed tank (11) and a movable tank (12) mounted on the upper portion of the fixed tank (11), the movable tank (12) is hermetically connected with the fixed tank (11), and the movable tank (12) is composed of a rectangular frame (121) at the upper end and the lower end and a flexible joint (122) at the middle portion.
8. The adjustable flotation machine according to claim 7, wherein the lower rectangular frame (121) is fixed to the upper part of the fixed tank body (11) by bolts.
9. The adjustable flotation machine according to claim 8, wherein the rectangular frame (121) of the upper end is fixedly connected to the tray support (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020423768.0U CN212663890U (en) | 2020-03-27 | 2020-03-27 | Adjustable flotation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020423768.0U CN212663890U (en) | 2020-03-27 | 2020-03-27 | Adjustable flotation device |
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| CN212663890U true CN212663890U (en) | 2021-03-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114011586A (en) * | 2021-11-05 | 2022-02-08 | 赖江川 | Flotation machine based on separation is carried out to ore pulp height |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114011586A (en) * | 2021-11-05 | 2022-02-08 | 赖江川 | Flotation machine based on separation is carried out to ore pulp height |
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