CN219112336U - System for be used for reducing incomplete phosphorus of phosphogypsum - Google Patents
System for be used for reducing incomplete phosphorus of phosphogypsum Download PDFInfo
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- CN219112336U CN219112336U CN202222854844.5U CN202222854844U CN219112336U CN 219112336 U CN219112336 U CN 219112336U CN 202222854844 U CN202222854844 U CN 202222854844U CN 219112336 U CN219112336 U CN 219112336U
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Abstract
The embodiment of the application discloses a system for reducing phosphogypsum residual phosphorus, which can reduce phosphogypsum residual phosphorus and further improve phosphorus recovery rate. The application comprises the following steps: the device comprises a heat exchanger, a washing water buffer tank, a precooler circulating pump and a water pump assembly; the heat exchanger is connected with the washing water buffer tank through a pipeline, one side of the washing water buffer tank is provided with the precooler circulating tank, the precooler circulating tank is connected with the precooler circulating pump through a pipeline, the precooler circulating pump is connected with the washing water buffer tank through a pipeline, the washing water buffer tank is connected with the water pump assembly through a pipeline, and the water pump assembly is used for outputting water in the washing water buffer tank outwards.
Description
Technical Field
The embodiment of the application relates to the technical field of phosphoric acid treatment, in particular to a system for reducing phosphogypsum residual phosphorus.
Background
At present, when phosphoric acid is treated, slag field backwater is usually used as second washing water and third washing water of a phosphoric acid filtering system, but the washing effect is poor when phosphogypsum is filtered due to the high phosphorus content in the slag field backwater at present, so that the residual phosphorus content on phosphogypsum is high, and the phosphorus loss is large. Based on this, the present application provides a system for reducing phosphogypsum residual phosphorus to solve the above problems.
Disclosure of Invention
The embodiment of the application provides a system for reducing phosphogypsum residual phosphorus, which can reduce phosphogypsum residual phosphorus and further improve phosphorus recovery rate.
The application provides a system for reducing phosphogypsum residual phosphorus, comprising: the device comprises a heat exchanger, a washing water buffer tank, a precooler circulating pump and a water pump assembly; the heat exchanger is connected with the washing water buffer tank through a pipeline, one side of the washing water buffer tank is provided with the precooler circulation tank, the precooler circulation tank is connected with the precooler circulation pump through a pipeline, the precooler circulation pump is connected with the washing water buffer tank through a pipeline, the washing water buffer tank is connected with the water pump assembly through a pipeline, and the water pump assembly is used for outputting water in the washing water buffer tank outwards.
Optionally, be provided with first opening, second opening, third opening and fourth opening on the heat exchanger, install first pipeline on the first opening, install the second pipeline on the second opening, install the third pipeline on the third opening, install the fourth pipeline on the fourth opening, first pipeline is used for the input sulfuric acid circulating water, the second pipeline is used for the concentrated comdenstion water of input phosphoric acid, the third pipeline is used for the comdenstion water after the output heat transfer, the fourth pipeline is used for the sulfuric acid circulating water after will heating input wash water dashes groove.
Optionally, the water pump assembly includes first water pump and second water pump, wash water buffer tank through first inlet channel with the water inlet of first water pump is connected, be connected with the second inlet channel on the first inlet channel, the other end of second inlet channel with the second water pump water inlet is connected.
Optionally, the water outlet of the first water pump is connected with a first water outlet pipeline, the water outlet of the second water pump is connected with a second water outlet pipeline, and the first water outlet pipeline is connected with the second water outlet pipeline.
Optionally, a first flowmeter is installed on the first water inlet pipeline.
Optionally, a second flowmeter is installed on the second water inlet pipeline.
Optionally, a liquid level sensor is installed in the washing water buffer tank, the liquid level sensor is connected with a controller, and the controller is connected with the precooler circulating pump.
Optionally, a first water pipe is arranged on the precooler circulation tank, the other end of the first water pipe is connected with the water inlet of the precooler circulation pump, a second water pipe is arranged at the water outlet of the precooler circulation pump, and the other end of the second water pipe is connected with the washing water buffer tank.
Optionally, a third flowmeter is installed on the second water pipe.
Optionally, a support bracket is installed below the heat exchanger, and the support bracket is used for supporting the heat exchanger.
From the above technical solutions, the embodiments of the present application have the following advantages:
the system for reducing phosphogypsum residual phosphorus is provided with a heat exchanger, a washing water buffer tank, a precooler circulating pump and a water pump assembly; the heat exchanger is connected with the washing water buffer tank through a pipeline, a precooler circulating tank is arranged on one side of the washing water buffer tank, the precooler circulating tank is connected with a precooler circulating pump through a pipeline, the precooler circulating pump is connected with the washing water buffer tank through a pipeline, the washing water buffer tank is connected with a water pump assembly through a pipeline, and the water pump assembly is used for outputting water in the washing water buffer tank outwards.
The sulfuric acid circulating water can be heated in the heat exchanger, the heated sulfuric acid circulating water is conveyed to the washing water buffer tank, and finally the sulfuric acid circulating water is conveyed outwards through the water pump assembly and used as three washing water for phosphoric acid filtration; further, it is known that the phosphogypsum is washed by using the heat exchanger to heat the sulfuric acid circulating water and then using the sulfuric acid circulating water as the filtering three-washing water, so that the residual phosphorus of the phosphogypsum can be effectively reduced, the phosphorus recovery rate is improved, and the pollution discharge problem of the sulfuric acid circulating water is solved.
Drawings
FIG. 1 is a schematic diagram of a system for reducing phosphogypsum residual phosphorus in accordance with the present application.
Detailed Description
In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely used to illustrate the relative positional relationships between the components or portions, and do not particularly limit the specific mounting orientations of the components or portions.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
Furthermore, the structures, proportions, sizes, etc. shown in the drawings herein are shown and described in detail for purposes of illustration only, and are not intended to limit the scope of the utility model, which is defined in the claims, unless otherwise indicated, and which are otherwise used by those skilled in the art to which the utility model pertains.
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
At present, when phosphoric acid is treated, slag field backwater is usually used as second washing water and third washing water of a phosphoric acid filtering system, but the washing effect is poor when phosphogypsum is filtered due to the high phosphorus content in the slag field backwater at present, so that the residual phosphorus content on phosphogypsum is high, and the phosphorus loss is large.
Based on the above, the application provides a system for reducing the residual phosphorus of phosphogypsum, which can reduce the residual phosphorus of phosphogypsum and further improve the phosphorus recovery rate.
Referring to fig. 1, the present application provides a system for reducing phosphorus residue in phosphogypsum, comprising: the device comprises a heat exchanger 1, a washing water buffer tank 4, a precooler circulating tank 3, a precooler circulating pump 5 and a water pump assembly; the heat exchanger 1 is connected with the washing water buffer tank 4 through a pipeline, one side of the washing water buffer tank 4 is provided with the precooler circulation tank 3, the precooler circulation tank is connected with the precooler circulation pump 5 through a pipeline, the precooler circulation pump 5 is connected with the washing water buffer tank 4 through a pipeline, the washing water buffer tank 4 is connected with the water pump assembly through a pipeline, and the water pump assembly is used for outputting water in the washing water buffer tank 4 outwards.
In this embodiment of the present application, a plurality of openings are provided on the heat exchanger 1, specifically, a first opening, a second opening, a third opening and a fourth opening are provided on the heat exchanger 1, a first pipe 11 is installed on the first opening, a second pipe 12 is installed on the second opening, a third pipe 13 is installed on the third opening, and a fourth pipe 14 is installed on the fourth opening, where it is required to be stated that the connection between each opening and the pipe is a sealing connection, for example: sealing rings are used at the joints or sealing colloid is smeared outside the joints to prevent liquid from leaking outwards from the joints. Different liquids are input or output in each pipeline, specifically, a first pipeline 11 is used for inputting sulfuric acid circulating water, a second pipeline 12 is used for inputting phosphoric acid concentrated condensed water, a third pipeline 13 is used for outputting condensed water after heat exchange, and a fourth pipeline 14 is used for inputting heated sulfuric acid circulating water into the washing water buffer tank 4.
In practical application, sulfuric acid circulating water is placed into a heat exchanger 1 through a first pipeline 11, phosphoric acid concentrated condensed water is placed into the heat exchanger 1 through a second pipeline 12, at the moment, the phosphoric acid concentrated condensed water exchanges heat through a shell layer of the heat exchanger 1, the sulfuric acid circulating water passes through a pipe layer of the heat exchanger 1, thereby heating the sulfuric acid circulating water, the temperature of the heated sulfuric acid circulating water rises to 60-70 ℃, the heating temperature range is regulated by the adding amount of the phosphoric acid concentrated condensed water, the sulfuric acid circulating water after the temperature rise enters a washing water buffer tank 4, and the sulfuric acid circulating water in the washing water buffer tank 4 is input into a filter outwards through a water pump assembly and used as filtering three-washing water.
In order to avoid the shortage of sulfuric acid circulating water in the washing water buffer tank 4, a precooler circulating tank 3 is arranged on one side of the washing water buffer tank 4, a first water pipe is arranged on the precooler circulating tank 3, the other end of the first water pipe is connected with a water inlet of a precooler circulating pump 5, a water outlet of the precooler circulating pump 5 is provided with a second water pipe, the other end of the second water pipe is connected with the washing water buffer tank 4, and further, the precooler circulating pump 5 can convey water in the precooler circulating tank 3 into the washing water buffer tank 4. It should be noted that, there is a liquid level sensor 41 installed inside the wash water buffer tank 4, the liquid level sensor 41 is connected with a controller, the controller is connected with the precooler circulating pump 5, only when the liquid level of the sulfuric acid circulating water in the wash water buffer tank 4 is lower than a certain position, in order to meet the normal working requirement of the filter, the liquid level sensor 41 sends a signal to the controller, and after receiving the signal, the controller controls the precooler circulating pump 5 to work, thereby ensuring that the water source in the wash water buffer tank 4 is sufficient, and further meeting the use requirement of the filter.
Wherein the phosphoric acid concentrated condensed water after heat exchange in the heat exchanger 1 enters the desalination water station through the fourth pipeline 14.
Optionally, the water pump assembly includes first water pump 7 and second water pump 8, and wash water buffer tank 4 is connected with the water inlet of first water pump 7 through first inlet channel, is connected with the second inlet channel on the first inlet channel, and the other end and the 8 water inlets of second water pump of second inlet channel are connected.
The water outlet of the first water pump 7 is connected with a first water outlet pipeline, the water outlet of the second water pump 8 is connected with a second water outlet pipeline, the first water outlet pipeline is connected with the second water outlet pipeline, a first flowmeter 10 is installed on the first water inlet pipeline, a second flowmeter 8 is installed on the second water inlet pipeline, and the flow of sulfuric acid circulating water flowing outwards in the washing water buffer tank 4 can be obtained through the first flowmeter 10 and the second flowmeter 8.
In practical application, the sulfuric acid circulating water on the washing water buffer tank 4 enters the first water inlet pipeline and the second water inlet pipeline, then the sulfuric acid circulating water is pumped into the filter through the first water pump 7 and the second water pump 8, and the sulfuric acid circulating water is heated and then used as three washing water for filtering to wash phosphogypsum, so that the residual phosphorus of phosphogypsum can be effectively reduced, the phosphorus recovery rate is improved, and meanwhile, the pollution discharge problem of the sulfuric acid circulating water is solved.
Wherein, install third flowmeter 6 on the second water pipe, support frame 2 is installed to heat exchanger 1 below, and support frame 2 is used for supporting heat exchanger 1.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A system for reducing phosphorus residue in phosphogypsum, comprising: the device comprises a heat exchanger, a washing water buffer tank, a precooler circulating pump and a water pump assembly;
the heat exchanger is connected with the washing water buffer tank through a pipeline, one side of the washing water buffer tank is provided with the precooler circulation tank, the precooler circulation tank is connected with the precooler circulation pump through a pipeline, the precooler circulation pump is connected with the washing water buffer tank through a pipeline, the washing water buffer tank is connected with the water pump assembly through a pipeline, and the water pump assembly is used for outputting water in the washing water buffer tank outwards.
2. The system for reducing phosphorus residue in phosphogypsum according to claim 1, wherein the heat exchanger is provided with a first opening, a second opening, a third opening and a fourth opening, the first opening is provided with a first pipeline, the second opening is provided with a second pipeline, the third opening is provided with a third pipeline, the fourth opening is provided with a fourth pipeline, the first pipeline is used for inputting sulfuric acid circulating water, the second pipeline is used for inputting phosphoric acid condensed water, the third pipeline is used for outputting condensed water after heat exchange, and the fourth pipeline is used for inputting heated sulfuric acid circulating water into the washing water buffer tank.
3. The system for reducing phosphorus residue in phosphogypsum of claim 1, wherein the water pump assembly comprises a first water pump and a second water pump, the wash water buffer tank is connected with a water inlet of the first water pump through a first water inlet pipeline, a second water inlet pipeline is connected to the first water inlet pipeline, and the other end of the second water inlet pipeline is connected with a water inlet of the second water pump.
4. The system for reducing phosphorus residue in phosphogypsum of claim 3, wherein the water outlet of the first water pump is connected with a first water outlet pipeline, the water outlet of the second water pump is connected with a second water outlet pipeline, and the first water outlet pipeline is connected with the second water outlet pipeline.
5. The system for reducing phosphorus residue in phosphogypsum of claim 4, wherein the first water inlet pipe has a first flow meter mounted thereon.
6. The system for reducing phosphorus residue in phosphogypsum of claim 4, wherein a second flowmeter is mounted on the second water inlet conduit.
7. The system for reducing phosphorus residue in phosphogypsum of claim 1, wherein a liquid level sensor is installed in the washing water buffer tank, the liquid level sensor is connected with a controller, and the controller is connected with the precooler circulating pump.
8. The system for reducing phosphorus residue in phosphogypsum according to claim 1, wherein a first water pipe is arranged on the precooler circulation tank, the other end of the first water pipe is connected with the water inlet of the precooler circulation pump, a second water pipe is arranged at the water outlet of the precooler circulation pump, and the other end of the second water pipe is connected with the washing water buffer tank.
9. The system for reducing phosphorus residue in phosphogypsum of claim 8, wherein a third flowmeter is mounted on the second water pipe.
10. The system for reducing phosphorus residue in phosphogypsum of any one of claims 1 to 9, wherein a support bracket is installed under the heat exchanger, and the support bracket is used for supporting the heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222854844.5U CN219112336U (en) | 2022-10-27 | 2022-10-27 | System for be used for reducing incomplete phosphorus of phosphogypsum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222854844.5U CN219112336U (en) | 2022-10-27 | 2022-10-27 | System for be used for reducing incomplete phosphorus of phosphogypsum |
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| Publication Number | Publication Date |
|---|---|
| CN219112336U true CN219112336U (en) | 2023-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222854844.5U Active CN219112336U (en) | 2022-10-27 | 2022-10-27 | System for be used for reducing incomplete phosphorus of phosphogypsum |
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| Country | Link |
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| CN (1) | CN219112336U (en) |
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- 2022-10-27 CN CN202222854844.5U patent/CN219112336U/en active Active
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