A circulating slag cleaning device for a phosphorus-ammonium production cleaning tank

Abstract

The application discloses a circulating slag cleaning device for a cleaning tank for phosphorus-ammonium production, which can effectively clean the slag of the cleaning tank. The application comprises: the inside of the cleaning tank is provided with a flow guide plate assembly and a nozzle assembly, the nozzle assembly is arranged at the top of the cleaning tank, the flow guide plate assembly is arranged below the nozzle assembly, a low-slag outlet pipe is arranged at the bottom of the cleaning tank, one end of a circulating pipeline is connected with the low-slag outlet pipe, the other end of the circulating pipeline is connected with the nozzle assembly, a pneumatic valve gate, a filter and a slag pump are all installed on the circulating pipeline, the pneumatic valve gate is arranged on one side of the low-slag outlet pipe, the filter is arranged on one side of the pneumatic valve gate, the slag pump is arranged on one side of the filter, a liquid level sensor and a solid content detector are both arranged in the cleaning tank, and the liquid level sensor, the solid content detector and the slag pump are all connected with a PLC controller.

Description

Technical Field

[0001] This application relates to the field of ammonium phosphate production technology, and in particular to a circulating slag removal device for an ammonium phosphate production cleaning tank. Background Technology

[0002] In the DAP (diammonium phosphate) production process, the cleaning tanks in the concentrated acid tank area need to receive a variety of high solids content media, including the cleaning water from the raw acid pipelines A / B / C / D of the clarification C / D neutralization tanks in the second to third phases of the phosphate tank area, the residual raffinate acid and sludge acid and clear acid collected in the tank area's underground tanks, rainwater and fire-fighting water, as well as settling agents, and the cleaning water from the PPA residual raffinate pipelines and the pretreatment acid cleaning pipelines.

[0003] Currently, most cleaning tanks in existing technologies are static storage structures. Given that the solid content of the received medium is often as high as 15%-25%, solid impurities are very easy to deposit at the bottom of the tank, affecting the continuity and stability of the production process. At the same time, due to the serious deposition of solid impurities, frequent manual cleaning is required, which is not only costly and requires a lot of manpower and resources, but also poses many safety hazards to the workers during the cleaning process, such as contact with harmful media and accidents, threatening their lives and health. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a circulating slag removal device for a cleaning tank in ammonium phosphate production.

[0005] The technical solution provided in this application is described below: This application provides a circulating slag removal device for a cleaning tank in ammonium phosphate production, including: a cleaning tank, a filter, a pneumatic valve gate, a circulation pipeline, a slag pump, a guide plate assembly, a nozzle assembly, a liquid level sensor, a solids detector, and a PLC controller; The cleaning tank contains the guide plate assembly and the nozzle assembly. The nozzle assembly is located at the top of the cleaning tank, and the guide plate assembly is located below the nozzle assembly. A low-slag outlet pipe is located at the bottom of the cleaning tank. One end of the circulation pipeline is connected to the low-slag outlet pipe, and the other end of the circulation pipeline is connected to the nozzle assembly. The pneumatic valve, the filter, and the slag pump are all installed on the circulation pipeline. The pneumatic valve is located on one side of the low-slag outlet pipe, the filter is located on one side of the pneumatic valve, and the slag pump is located on one side of the filter. The liquid level sensor and the solids detector are both located in the cleaning tank, and the liquid level sensor, the solids detector, and the slag pump are all connected to the PLC controller.

[0006] Optionally, the nozzle assembly includes a first nozzle, a second nozzle, and a third nozzle, which are equally spaced and are all connected to the circulation pipeline.

[0007] Optionally, the guide plate assembly includes a first guide plate, a second guide plate, and a third guide plate, wherein the first guide plate, the second guide plate, and the third guide plate are vertically installed on the inner wall of the cleaning tank and are equally spaced.

[0008] Optionally, the first guide plate, the second guide plate, and the third guide plate are configured to have an arc shape.

[0009] Optionally, the inner wall of the cleaning tank is lined with an acid-resistant rubber sheet.

[0010] Optionally, the filter, the pneumatic valve gate, and the slag pump are arranged at equal intervals.

[0011] Optionally, the circulation pipeline is arranged in a ring along the wall of the cleaning tank.

[0012] Optionally, the low-slag outlet pipe is inclined at the bottom of the washing tank.

[0013] Optionally, the connection between the circulation pipeline and the low slag outlet pipe is sealed, and the connection between the circulation pipeline and the nozzle assembly is also sealed.

[0014] Optionally, the connection between the slag pump and the circulation pipeline is sealed.

[0015] As can be seen from the above technical solutions, this application has the following advantages: 1. This application uses a circulation pipeline to extract the slurry from the bottom of the cleaning tank through the low slurry outlet pipe. After passing through a pneumatic valve gate, filter and slurry pump, it is then sprayed back into the cleaning tank by the nozzle assembly, forming a circulating slurry cleaning process. This circulation method can continuously filter and clean the slurry in the cleaning tank, improve the slurry cleaning efficiency, ensure the cleanliness of the cleaning tank, and facilitate the stable operation of the ammonium phosphate production process.

[0016] 2. The nozzle assembly of this application is located at the top of the cleaning tank, and the guide plate assembly is located below the nozzle assembly. This layout allows the cleaning liquid sprayed from the nozzle assembly to be more evenly distributed in the cleaning tank under the action of the guide plate assembly, so as to thoroughly clean the ammonium phosphate product, effectively remove impurities and residues from the product surface, and improve product quality.

[0017] 3. The liquid level sensor and solids detector are installed in the cleaning tank and are both connected to the PLC controller. The slag pump is also connected to the PLC controller. The liquid level sensor can monitor the liquid level in the cleaning tank in real time, and the solids detector can detect relevant parameters in the cleaning tank and feed the signals back to the PLC controller. The PLC controller automatically controls the operation of the slag pump based on these feedback signals, realizing the automated control of the entire slag cleaning process, reducing manual intervention, reducing labor intensity, and improving the level of automation and production efficiency.

[0018] 4. With this application, there is no need for frequent manual cleaning of slag, no need to invest a lot of manpower and resources, and avoids many safety hazards such as contact with harmful media and accidents during the slag cleaning process, thus reducing the impact on their life safety. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the circulating slag removal device for the ammonium phosphate production cleaning tank in this application. In the diagram: 1. Cleaning tank; 2. Low slag outlet pipe; 3. Filter; 4. Pneumatic valve gate; 5. Circulation pipeline; 6. Slag pump; 7. First guide plate; 8. Liquid level sensor; 9. Solid content detector; 10. First nozzle; 11. Second nozzle; 12. Third nozzle; 13. Second guide plate; 14. Third guide plate. Detailed Implementation

[0021] In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and other terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to describe the relative positional relationship between the components or parts and do not specifically limit the specific installation orientation of each component or part.

[0022] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0023] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0024] Furthermore, the structures, proportions, sizes, etc., drawn in the accompanying drawings of this application are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modification to the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] Currently, most cleaning tanks in existing technologies are static storage structures. Given that the solid content of the received medium is often as high as 15%-25%, solid impurities are very easy to deposit at the bottom of the tank, affecting the continuity and stability of the production process. At the same time, due to the serious deposition of solid impurities, frequent manual cleaning is required, which is not only costly and requires a lot of manpower and resources, but also poses many safety hazards to the workers during the cleaning process, such as contact with harmful media and accidents, threatening their lives and health.

[0027] Based on this, this application provides a circulating slag removal device for a cleaning tank in ammonium phosphate production. With this application, there is no need for frequent manual slag removal, no need to invest a lot of manpower and resources, and it avoids many safety hazards such as contact with harmful media and accidents during the slag removal process, thereby reducing the impact on their life safety.

[0028] Please see Figure 1 This application provides a circulating slag removal device for a cleaning tank in the production of ammonium phosphate, including: a cleaning tank 1, a filter 3, a pneumatic valve gate 4, a circulation pipeline 5, a slag pump 6, a guide plate assembly, a nozzle assembly, a liquid level sensor 8, a solids detector 9, and a PLC controller. The cleaning tank 1 contains the guide plate assembly and the nozzle assembly. The nozzle assembly is located at the top of the cleaning tank 1, and the guide plate assembly is located below the nozzle assembly. A low-slag outlet pipe 2 is located at the bottom of the cleaning tank 1. One end of the circulation pipeline 5 is connected to the low-slag outlet pipe 2, and the other end of the circulation pipeline 5 is connected to the nozzle assembly. The pneumatic valve gate 4, the filter 3, and the slag pump 6 are all installed on the circulation pipeline 5. The pneumatic valve gate 4 is located on one side of the low-slag outlet pipe 2, the filter 3 is located on one side of the pneumatic valve gate 4, and the slag pump 6 is located on one side of the filter 3. The liquid level sensor 8 and the solids detector 9 are both located in the cleaning tank 1, and the liquid level sensor 8, the solids detector 9, and the slag pump 6 are all connected to the PLC controller.

[0029] First, let's explain the function and purpose of each component: Cleaning tank 1: Provides a space for containing ammonium phosphate products, allowing them to undergo cleaning operations within the tank to remove surface impurities and residues. Through its internal structure and cooperation with other components, it achieves an efficient cleaning and slag removal process, ensuring the quality of the ammonium phosphate products.

[0030] Filter 3: Installed on the circulation pipeline 5, it filters the liquid containing slurry drawn from the bottom of the cleaning tank 1. It can intercept and separate solid impurities and particles in the liquid, while ensuring the cleanliness of the circulating liquid, so that the cleaning process can be carried out continuously and effectively.

[0031] Pneumatic valve gate 4: Located on one side of the low slag outlet pipe 2 of the circulation pipeline 5, it is used to control the flow rate and on / off state of the slurry in the circulation pipeline 5. It can adjust the valve opening through pneumatic control according to production needs and operating status, so as to achieve flexible control of slurry flow. It can also close the valve to cut off the slurry flow when equipment needs to be repaired or when abnormal conditions occur, so as to ensure system safety.

[0032] Circulation pipeline 5: Connects the low slag outlet pipe 2 at the bottom of the cleaning tank 1 and the nozzle assembly at the top to form a liquid circulation channel. The liquid containing slag at the bottom of the cleaning tank 1 is extracted, filtered, transported and other treated, and then sent back to the top of the cleaning tank 1 to realize the recycling of the liquid and continuously clean the slag in the cleaning tank 1.

[0033] Sludge pump 6: Installed on the circulation pipeline 5, it provides power for the flow of sludge in the pipeline, and is used to extract the sludge from the bottom of the cleaning tank 1 and transport it along the circulation pipeline 5 to the filter 3 for filtration. Then, the filtered clean liquid is transported to the nozzle assembly to ensure the normal operation of the entire circulation sludge cleaning process.

[0034] Deflector assembly: Located below the nozzle assembly inside the cleaning tank 1, it guides and disperses the cleaning liquid sprayed from the nozzle assembly, so that the cleaning liquid can be more evenly distributed in the cleaning tank 1, expanding the cleaning area, improving the cleaning effect, and ensuring that all parts inside the cleaning tank 1 are thoroughly cleaned.

[0035] Nozzle assembly: Installed on the top of the cleaning tank 1, it is used to spray the filtered cleaning liquid into the cleaning tank 1 at a certain pressure and spray angle to form a strong water flow to clean the inside of the cleaning tank 1. At the same time, it works with the guide plate assembly to achieve uniform cleaning and prevent solids from depositing in the cleaning tank 1.

[0036] Liquid level sensor 8: Installed in the cleaning tank 1, it is used to monitor the liquid level in the cleaning tank 1 in real time and transmit the liquid level signal to the PLC controller. By measuring the liquid level, the PLC controller can control the operation of the slag pump 6 according to the preset liquid level range, effectively preventing the liquid level from being too high or too low from causing adverse effects on production and ensuring the stability of the cleaning process.

[0037] Solids detector 9: Installed in the cleaning tank 1, it is used to detect relevant parameters of the liquid in the cleaning tank 1, such as slurry concentration and pH, and feeds back the detection signal to the PLC controller so that the PLC controller can adjust the system operating parameters in a timely manner according to the information fed back by the detector to ensure the cleaning quality.

[0038] PLC controller: As the control core of the entire circulating slag removal device, it receives signals from the liquid level sensor 8 and the solids detector 9, analyzes and processes the signals, and then sends control commands to the slag pump 6, pneumatic valve gate 4 and other actuators to realize the automated control of the entire slag removal process, improve the automation level and efficiency of production, and reduce manual intervention.

[0039] Overall implementation principle: When the slag removal begins, the slag pump 6 is started. The slag pump 6 starts working and draws out the liquid containing slag slurry from the low slag outlet pipe 2 at the bottom of the cleaning tank 1. The liquid flows along the circulation pipeline 5. The drawn slag slurry first passes through the pneumatic valve gate 4. The pneumatic valve gate 4 controls the flow rate of the slag slurry according to the setting. Then the slag slurry enters the filter 3. The filter 3 filters the slag slurry to remove solid impurities and particles, making the liquid clean. The filtered clean liquid continues to be transported along the circulation pipeline 5 to the nozzle assembly. The nozzle assembly sprays the liquid into the cleaning tank 1 at a certain pressure and angle.

[0040] Under the action of the baffle assembly, the cleaning liquid is evenly distributed in the cleaning tank 1, which cleans the inside of the cleaning tank 1 in a comprehensive manner and prevents solids from depositing in the cleaning tank 1.

[0041] The liquid level sensor 8 monitors the liquid level in the cleaning tank 1 in real time, and the solids detector 9 detects the relevant parameters of the liquid and transmits the monitored signals to the PLC controller. The PLC controller analyzes and judges the received liquid level signal and parameter signal according to the preset program.

[0042] If the liquid level is too high or too low, or if the detected parameters exceed the normal range, the PLC controller will promptly adjust the operating status of the slag pump 6 or control the opening of the pneumatic valve gate 4 to maintain the stability of the liquid level in the cleaning tank 1 and ensure the rationality of the cleaning process, thus ensuring that the entire cleaning and slag removal process is carried out efficiently and stably. Through this cyclical process, the inside of the cleaning tank 1 is continuously cleaned, effectively preventing solids from accumulating in the cleaning tank 1.

[0043] Optionally, the nozzle assembly includes a first nozzle 10, a second nozzle 11, and a third nozzle 12, which are equally spaced and are all connected to the circulation pipeline 5.

[0044] In this embodiment, the first, second, and third nozzles 12, which are equally spaced, can spray cleaning liquid into the cleaning tank 1 from different positions. Because they are distributed at different points, they can cover a wider area compared to a single nozzle, avoiding cleaning dead spots. The three nozzles can clean different areas in the cleaning tank 1, ensuring that the entire cleaning tank 1 is thoroughly rinsed and improving the overall cleaning effect.

[0045] Optionally, the guide plate assembly includes a first guide plate 7, a second guide plate 13, and a third guide plate 14, wherein the first guide plate 7, the second guide plate 13, and the third guide plate 14 are vertically installed on the inner wall of the cleaning tank 1 and are arranged at equal intervals.

[0046] In this embodiment, by vertically installing the first, second, and third guide plates 14 at equal intervals on the inner wall of the cleaning tank 1, the cleaning liquid sprayed from the nozzle assembly can be guided and dispersed more accurately and effectively, guiding the cleaning liquid to form a spiral flow to prevent solids from accumulating at the bottom of the cleaning tank 1. Furthermore, the first guide plate 7, the second guide plate 13, and the third guide plate 14 are designed with an arc shape.

[0047] The inner wall of the cleaning tank 1 is lined with an acid-resistant rubber sheet.

[0048] In this embodiment, the inner wall of the cleaning tank 1 is lined with an acid-resistant rubber sheet, which can effectively resist the corrosion of acidic substances during the cleaning process of ammonium phosphate production and extend the service life of the cleaning tank 1.

[0049] The filter 3, the pneumatic valve gate 4, and the slag pump 6 are arranged at equal intervals.

[0050] In this embodiment, the filter 3, the pneumatic valve gate 4, and the slag pump 6 are arranged at equal intervals on the circulation pipeline 5, which can ensure stable and balanced fluid transport between the equipment during the slag circulation process. This facilitates efficient filtration by the filter 3, precise flow control by the pneumatic valve gate 4, and stable power supply by the slag pump 6, ensuring the stable operation of the entire circulation slag cleaning process.

[0051] The circulation pipeline 5 is arranged in a ring along the wall of the cleaning tank 1.

[0052] In this embodiment, the circulation pipeline 5 is arranged in a ring along the wall of the cleaning tank 1, which makes the slurry circulation flow smoother and covers all areas of the cleaning tank 1, ensuring uniform and efficient slurry cleaning and avoiding circulation dead zones.

[0053] The low-slag outlet pipe 2 is inclinedly installed at the bottom of the cleaning tank 1. The connection between the circulation pipeline 5 and the low-slag outlet pipe 2 is sealed, and the connection between the circulation pipeline 5 and the nozzle assembly is also sealed. The connection between the slag pump 6 and the circulation pipeline 5 is sealed to ensure the normal operation of the slag cleaning process.

[0054] It should be noted that the above description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of this application. Therefore, this application is not 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

1. A circulating slag removal device for a cleaning tank in ammonium phosphate production, characterized in that, include: Cleaning tank, filter, pneumatic valve gate, circulation pipeline, slag pump, baffle plate assembly, nozzle assembly, liquid level sensor, solids detector and PLC controller; The cleaning tank contains the guide plate assembly and the nozzle assembly. The nozzle assembly is located at the top of the cleaning tank, and the guide plate assembly is located below the nozzle assembly. A low-slag outlet pipe is located at the bottom of the cleaning tank. One end of the circulation pipeline is connected to the low-slag outlet pipe, and the other end of the circulation pipeline is connected to the nozzle assembly. The pneumatic valve, the filter, and the slag pump are all installed on the circulation pipeline. The pneumatic valve is located on one side of the low-slag outlet pipe, the filter is located on one side of the pneumatic valve, and the slag pump is located on one side of the filter. The liquid level sensor and the solids detector are both located in the cleaning tank, and the liquid level sensor, the solids detector, and the slag pump are all connected to the PLC controller.

2. The circulating slag removal device for the ammonium phosphate production cleaning tank according to claim 1, characterized in that, The nozzle assembly includes a first nozzle, a second nozzle, and a third nozzle, which are equally spaced and are all connected to the circulation pipeline.

3. The circulating slag removal device for the ammonium phosphate production cleaning tank according to claim 1, characterized in that, The guide plate assembly includes a first guide plate, a second guide plate, and a third guide plate. The first guide plate, the second guide plate, and the third guide plate are vertically installed on the inner wall of the cleaning tank and are arranged at equal intervals.

4. The circulating slag removal device for the ammonium phosphate production cleaning tank according to claim 3, characterized in that, The first guide plate, the second guide plate, and the third guide plate are configured to have an arc shape.

5. The circulating slag removal device for the ammonium phosphate production cleaning tank according to claim 1, characterized in that, The inner wall of the cleaning tank is lined with an acid-resistant rubber sheet.

6. The circulating slag removal device for the ammonium phosphate production cleaning tank according to claim 1, characterized in that, The filter, the pneumatic valve gate, and the slag pump are arranged at equal intervals.

7. The circulating slag removal device for the ammonium phosphate production cleaning tank according to claim 1, characterized in that, The circulation pipeline is arranged in a ring along the wall of the cleaning tank.

8. The circulating slag removal device for the ammonium phosphate production cleaning tank according to claim 1, characterized in that, The low-slag outlet pipe is inclined and installed at the bottom of the washing tank.

9. The circulating slag removal device for the ammonium phosphate production cleaning tank according to claim 1, characterized in that, The connection between the circulation pipeline and the low slag outlet pipe is sealed, and the connection between the circulation pipeline and the nozzle assembly is also sealed.

10. The circulating slag removal device for the ammonium phosphate production cleaning tank according to any one of claims 1 to 9, characterized in that, The connection between the slag pump and the circulation pipeline is sealed.

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