Phosphorus flow analysis and evaluation system and method based on material flow analysis model

Abstract

The invention discloses a phosphorus flow analysis and evaluation system and method based on a material flow analysis model. The system comprises a plurality of data acquisition terminals and a ground monitoring station in wireless connection with the data acquisition terminals, the plurality of data acquisition terminals are respectively arranged at the discharge end of any group of processing steps, and are configured to acquire phosphorus content data of phosphorus products processed by the processing steps; and the ground monitoring station is configured to receive the phosphorus content data, obtain a phosphorus flow analysis result based on analysis of a pre-constructed material flow analysis model, and perform qualitative evaluation according to the phosphorus flow analysis result. The phosphorus content data of the phosphorus product after each processing step is acquired through the data acquisition end, the phosphorus flow analysis result is obtained based on the analysis of the pre-constructed material flow analysis model, and qualitative evaluation is performed according to the phosphorus flow analysis result, so that time and labor are saved, real-time and continuous monitoring of phosphorus flow can be realized, and the phosphorus flow detection accuracy is improved. And a solid data basis is provided for subsequent decisions.

Description

Technical Field

[0001] The present invention relates to the technical field of phosphorus element flow analysis, and in particular to a phosphorus flow analysis and evaluation system and method based on a material flow analysis model. Background Art

[0002] With the rapid development of global agriculture, food industry and chemical industry, phosphorus is an indispensable resource. Its flow characteristics in the processing process have a profound impact on production efficiency, resource utilization and environmental impact. The traditional phosphorus product (such as liquid phosphorus fertilizer product) processing flow mainly relies on manual on-site sampling analysis to analyze and evaluate phosphorus flow. This process is not only time-consuming and labor-intensive, but also difficult to achieve real-time and continuous monitoring of phosphorus flow. To this end, we propose a phosphorus flow analysis and evaluation system and method based on the material flow analysis model. Summary of the invention

[0003] The object of the present invention is to provide a phosphorus flow analysis and evaluation system and method based on a material flow analysis model to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A phosphorus flow analysis and evaluation system based on a material flow analysis model, the system is applied to phosphorus product processing equipment, the phosphorus product processing equipment includes at least two groups of processing steps, each group of the processing steps has a discharge end, the system includes a plurality of data acquisition terminals and ground monitoring stations wirelessly connected thereto;

[0006] A plurality of said data collection terminals are respectively arranged at the discharge end of any group of processing steps, and are configured to collect phosphorus content data of the phosphorus products processed through the processing steps;

[0007] The ground monitoring station is configured to receive phosphorus content data, and obtain phosphorus flow analysis results based on a pre-built material flow analysis model, and perform qualitative evaluation based on the phosphorus flow analysis results; wherein the data acquisition terminal includes:

[0008] case;

[0009] A frame body 1 is arranged in the shell, and a detector is arranged on the frame body, and the detector has a detection end penetrating the frame body 1;

[0010] The frame body 2 is arranged in the shell and below the frame body 1. The frame body 2 is provided with a sampling cylinder, and the sampling cylinder is connected to the discharge end of the processing step through the negative pressure device 1; and

[0011] The driving member is arranged in the shell and is used to drive the second frame to move until the detection end enters the sampling tube.

[0012] A further improvement is that the processing steps include:

[0013] S1: Putting raw materials required for preparing phosphorus products into a reactor for processing, and discharging the processed raw materials from a discharge end of the reactor;

[0014] S2: The raw materials discharged from the discharge end of the reactor equipment enter the filtering equipment for processing, and the processed raw materials are discharged from the discharge end of the filtering equipment;

[0015] S3: The raw materials discharged from the discharge end of the filtering device enter the cooling device for processing, and the processed raw materials are discharged from the discharge end of the cooling device.

[0016] A further improvement is that the frame 1 comprises:

[0017] A rotating shaft, one end of which is rotatably connected to the inner wall of the top of the shell, and the other end of which is connected to the top frame on which the detector is installed; and

[0018] The driven gear set has an axis perpendicular to the axis of the rotating shaft, and the shaft of the driven gear set is drivingly connected to the rotating shaft;

[0019] The frame 2 comprises:

[0020] A bottom frame is slidably connected to the inner wall of the shell, and the sampling tube is arranged on the bottom frame and staggered with the detector; and,

[0021] An elastic connector is connected to one end of the bottom frame, and the elastic connector is connected to a driving rack. The driving rack is used to drive the driven gear set to rotate a preset angle during the upward movement of the bottom frame, so that the detection end of the detector and the sampling tube are aligned. When the driven gear set rotates the preset angle, there is a gap between the sampling tube and the opposite end of the detector, and the top of the driving rack fits against the top inner wall of the shell.

[0022] A further improvement is that the system further comprises a liquid supply portion, wherein the liquid supply portion comprises:

[0023] The sealing cylinder is hollow at the top, and its movable sleeve is arranged outside the detection end of the detector and is sealed with the bottom of the top frame. A spraying part is arranged in the sealing cylinder, and the spraying part is connected to the output end of the second negative pressure device, and the input end of the second negative pressure device is connected to the liquid supply device. The sealing cylinder is slidably connected to the inner wall of the shell, and the sealing cylinder is also connected to a liquid discharge pipe; and,

[0024] The transmission structure includes two sets of transmission racks which are respectively arranged on the outer walls of the sealing cylinder and the bottom frame on opposite sides and are staggered up and down. A transmission gear is meshed between the two sets of transmission racks. The transmission gear is rotatably arranged in the shell. The transmission structure is used to drive the sealing cylinder to move downward when the bottom frame moves upward.

[0025] A further improvement is that a conductive sheet 1 for electrically connecting to a power source is embedded on the top frame, and a conductive sheet 2 and a conductive sheet 3 for contacting conductive sheet 1 are respectively embedded on the top of the sampling tube and the sealing tube, wherein conductive sheet 2 is electrically connected to negative pressure device 1, and conductive sheet 3 is electrically connected to negative pressure device 2.

[0026] A further improvement is that a plurality of groups of liquid outlets are provided at the bottom of the sampling barrel, a contact rod is movably inserted at the bottom of the sampling barrel, the top of the contact rod extends into the sampling barrel and is connected to a sealing plate for closing the liquid outlet, an elastic part for supporting the contact rod is provided on the outer wall of the contact rod, a discharge seat corresponding to the sampling barrel is provided at the bottom of the shell, a protrusion is provided in the discharge seat, which is used to enable the contact rod to drive the sealing plate to open the liquid outlet.

[0027] A further improvement is that the driving member comprises:

[0028] a bidirectional screw having threads extending through the bottom frame; and,

[0029] The rotating device is arranged on the inner wall of the bottom of the shell body and connected with the bottom end of the bidirectional screw.

[0030] A further improvement is that the sampling tube is provided with a cover body that closes the top thereof, one end of the cover body is connected to a stud, one end of the stud is rotated to penetrate the bottom frame and then a threaded sleeve is provided, the threaded sleeve is connected to the bottom frame through a second elastic connector, the bottom of the threaded sleeve is fitted with a support seat fixed to the inner wall of the shell, and the second elastic connector drives the threaded sleeve to drive the stud to rotate during the upward movement of the bottom frame, thereby causing the cover body to rotate to a preset angle and no longer close the sampling tube;

[0031] The output end of the second negative pressure device is also connected to the sampling cylinder through a backwash pipe, and a solenoid valve electrically connected to the control module is provided in the pipe.

[0032] A further improvement is that a liquid level sensor is provided in the sampling tube, and the liquid level sensor is electrically connected to the negative pressure device 1, and is used to send a signal to the control module when the liquid level height in the sampling tube reaches a preset threshold, and the control module controls the negative pressure device 1 to close.

[0033] A phosphorus flow analysis and evaluation method based on a material flow analysis model, using the above-mentioned evaluation system, comprises the following steps:

[0034] S1: A data acquisition terminal is installed at the discharge end of any group of processing steps, and the phosphorus content data of the phosphorus product processed by the processing steps are collected through the data acquisition terminal; wherein, when collecting the phosphorus content data of the phosphorus product, the data acquisition terminal drives the frame 2 to move upward through the driving member until the detection end enters the sampling cylinder, and then the part of the phosphorus product flowing at the discharge end of the processing step is drawn into the sampling cylinder through the negative pressure device 1, and finally the phosphorus content data of the phosphorus product is obtained through the detection of the detector;

[0035] S2: The ground monitoring station is configured to receive phosphorus content data, and obtain phosphorus flow analysis results based on a pre-built material flow analysis model, and perform qualitative evaluation based on the phosphorus flow analysis results.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] 1) The present invention obtains the phosphorus content data of the phosphorus product after each processing step through the data acquisition terminal, and then obtains the phosphorus flow analysis result based on the pre-constructed material flow analysis model, and performs qualitative evaluation according to the phosphorus flow analysis result. This method saves time and labor on the one hand, can realize real-time and continuous monitoring of phosphorus flow, provides a solid data basis for subsequent decision-making, and also significantly reduces the error caused by human intervention. On the other hand, it can effectively reveal the flow law, conversion efficiency and loss of phosphorus in the processing process, which not only helps enterprises to deeply understand the characteristics of phosphorus flow, but also provides a scientific basis for optimizing production processes and improving resource utilization.

[0038] 2) The data acquisition end of the present invention samples part of the phosphorus product passing through the discharge end into a sampling tube through a negative pressure device, and moves the sampling tube through a driving member to cooperate with the detection end of the detector to collect the phosphorus content data of the phosphorus product processed through the processing steps. The use is convenient, and the detection end of the detector can be automatically cleaned during the movement of the sampling tube, effectively removing possible impurities and residues, ensuring the cleanliness of the detection end and the accuracy of the detection results, which not only extends the service life of the detector, but also improves the reliability and stability of the overall data acquisition end. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the structure of the present invention;

[0040] Figure 2 For the present invention Figure 1 A magnified view of the structure A;

[0041] Figure 3 For the present invention Figure 1 A magnified view of structure B.

[0042] In the figure: 1. Shell; 2. Rotating shaft; 3. Driven gear set; 4. Detector; 5. Bottom frame; 6. Sampling tube; 7. Negative pressure device 1; 8. Bidirectional screw; 9. Rotating device; 10. Elastic connecting piece 1; 11. Driving rack; 12. Transmission rack; 13. Transmission gear; 14. Sealing tube; 15. Spraying piece; 16. Negative pressure device 2; 17. Top frame; 18. Sealing plate; 19. Liquid outlet; 20. Discharge seat; 21. Conductive sheet 1; 22. Conductive sheet 2; 23. Liquid level sensor; 24. Cover; 25. Elastic connecting piece 2; 26. Threaded sleeve; 27. Backwashing pipe. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] Example 1

[0045] Please refer to the attached Figure 1

[0046] A phosphorus flow analysis and evaluation system based on a material flow analysis model, the system is applied to phosphorus product processing equipment, specifically processing equipment for processing liquid phosphorus fertilizer products;

[0047] The phosphorus product processing equipment includes at least two groups of processing steps, each group of processing steps has a discharge end, and the system includes a plurality of data acquisition terminals and a ground monitoring station wirelessly connected thereto;

[0048] In this embodiment, the evaluation system also includes a data transmission module: wireless communication technology (such as Wi-Fi, 4G / 5G, satellite communication, etc.) is used to realize real-time data transmission between the data collection terminal and the ground monitoring station. This module ensures that the collected data can be quickly and safely transmitted to the ground monitoring station for processing and analysis;

[0049] Several data collection terminals are respectively arranged at the discharge end of any group of processing steps, and are configured to collect phosphorus content data of phosphorus products processed through the processing steps. In this way, the phosphorus content data of the phosphorus products after each processing step can be captured, thereby comprehensively reflecting the flow and change of phosphorus in the entire production process;

[0050] The ground monitoring station is configured to receive phosphorus content data, analyze the phosphorus flow analysis results based on a pre-built material flow analysis model, and perform qualitative evaluation based on the phosphorus flow analysis results;

[0051] The material flow analysis model belongs to the prior art. In this embodiment, the material flow analysis model firstly combines the initial phosphorus content data of the phosphorus product input into the processing step with the phosphorus content data of the phosphorus product processed through the processing step through the formula: Obtain the phosphorus content conversion rate of the phosphorus product after different processing steps. By comparing the conversion rates of different processing steps, efficiency bottlenecks can be identified or the total conversion rate can be calculated by multiplying the conversion rates of each processing step (assuming that each step is independent and continuous) or using the weighted average method (taking into account the importance of each step or the input amount of phosphorus), and qualitative evaluation can be performed based on the total conversion rate or the conversion rates of different processing steps;

[0052] The above-mentioned qualitative evaluation refers to a set baseline or standard conversion rate, which may be an industry standard or historical best performance, for example, the baseline is the historical best performance, and in the historical best performance, if the current conversion rate is significantly higher than the historical level, the evaluation result is that the phosphorus flow conversion efficiency is high; if it is significantly lower than the historical level, the evaluation result is that the phosphorus flow conversion efficiency is low.

[0053] The data collection terminal includes:

[0054] Shell 1;

[0055] The frame 1 is arranged in the housing 1, and a detector 4 is arranged on the frame. The detector 4 has a detection end that penetrates the frame 1. The detector 4 is, for example, an existing phosphate fertilizer detector, etc., which belongs to conventional equipment in the field and is not described in detail here. The detector collects phosphorus content data in the phosphorus product through the detection end and then sends it to the ground monitoring station;

[0056] The frame 2 is arranged in the shell 1 and below the frame 1. The frame 2 is provided with a sampling cylinder 6. The top of the sampling cylinder 6 is hollow. The sampling cylinder 6 is connected to the discharge end of the processing step through a negative pressure device 7. The negative pressure device 7 is, for example, a pump body. The output end and the input end thereof are respectively connected to the sampling cylinder 6 and the discharge end of the processing step through a hose, so as to sample part of the phosphorus product passing through the discharge end into the sampling cylinder 6; and,

[0057] The driving member is disposed in the housing 1 and is used to drive the frame 2 to move until the detection end enters the sampling tube 6 , thereby obtaining the phosphorus content data in the phosphorus product through the detector 4 .

[0058] By collecting the phosphorus content data of phosphorus products after processing in each processing step of phosphorus products, and analyzing the phosphorus content data of each processing step through a pre-constructed material flow analysis model, phosphorus flow analysis and evaluation work can be carried out according to the analysis results. For example, the influence of different processing steps on phosphorus flow can be evaluated, and the main links and causes of phosphorus loss can be identified.

[0059] Preferably, the processing steps of this embodiment include:

[0060] S1: Putting raw materials required for preparing phosphorus products into a reactor for processing, and discharging the processed raw materials from a discharge end of the reactor;

[0061] S2: The raw materials discharged from the discharge end of the reactor equipment enter the filtering equipment for processing, and the processed raw materials are discharged from the discharge end of the filtering equipment;

[0062] S3: The raw materials discharged from the discharge end of the filtering device enter the cooling device for processing, and the processed raw materials are discharged from the discharge end of the cooling device;

[0063] In this embodiment, several data acquisition terminals are respectively provided with the discharge ends of the reaction kettle equipment, the filtering equipment and the cooling equipment. Of course, in actual situations, the process is not limited to the above-mentioned processing steps.

[0064] Please refer to the attached Figure 2 -Attached Figure 3

[0065] Preferably, the frame 1 of this embodiment includes:

[0066] A rotating shaft 2, one end of which is rotatably connected to the top inner wall of the housing 1 through a bearing, and the other end of which is connected to a top frame 17 on which the detector 4 is installed; and

[0067] The driven gear set 3 includes a shaft and a driven gear sleeved on one end of the shaft, the axis of the driven gear set 3 is perpendicular to the axis of the rotating shaft 2, and the shaft of the driven gear set 3 is transmission-connected with the rotating shaft 2, for example, the shaft of the driven gear set 3 is transmission-connected with the rotating shaft 2 through a bevel gear set (two sets of meshing bevel gears), and the shaft of the driven gear set 3 and the rotating shaft 2 both pass through a bracket connected to the inner wall of the housing 1 to ensure stable transmission;

[0068] Frame 2 includes:

[0069] The bottom frame 5 is slidably connected to the inner wall of the shell 1. For example, the bottom frame 5 can be slidably connected with the vertical slide rail on the inner wall of the shell 1 by using a slider to ensure its stable up and down movement. The sampling tube 6 is arranged on the bottom frame 5 and staggered with the detector 4. Figure 1 It can be seen that, initially, the sampling tube 6 is located at the right end of the bottom frame 5, and the detector 4 is located at the left end of the top frame 17; and,

[0070] An elastic connector 10 is connected to one end of the bottom frame 5. The elastic connector 10 is connected to a driving rack 11. The driving rack 11 is used to drive the driven gear set 3 to rotate a preset angle during the upward movement of the bottom frame 5, and then the rotating shaft 2 drives the top frame 17 to rotate until the detection end of the detector 4 and the sampling tube 6 are exactly corresponding. It should be noted that when the driven gear set 3 rotates by a preset angle, there is a gap between the sampling tube 6 and the opposite end of the detector 4. At the same time, the top of the driving rack 11 fits against the top inner wall of the shell 1, so that the bottom frame 5 will not interfere with the rotation of the detector 4 with the top frame 17, and the two will not collide. The elastic connector 10 can adopt an elastic telescopic rod. Under the action of the elastic connector 10, the driving rack 11 and the driven gear set 3 are ensured to be in a meshing state while the bottom frame 5 can still move upward, so that the detection end enters the sampling tube 6.

[0071] Preferably, the system of this embodiment further includes a liquid supply unit, which includes:

[0072] The sealing cylinder 14 is hollow at the top, and its movable sleeve is arranged on the outside of the detection end of the detector 4 and is sealed and fitted with the bottom of the top frame 17. A sealing ring is embedded in the top of the sealing cylinder 14 and contacts the bottom of the top frame 17. A spraying part 15 is arranged in the sealing cylinder 14. The spraying part 15 is a nozzle structure. The spraying part 15 is connected to the output end of the negative pressure device 16. The negative pressure device 16 can be arranged on the outer wall of the shell 1. The input end of the negative pressure device 16 is connected to the liquid supply device. The negative pressure device 16 is, for example, a pump body. Its input end and output end are respectively connected to the liquid supply device and the spraying part 15 by a hose. The liquid supply device is, for example, a device storing cleaning liquid, etc. The sealing cylinder 14 is slidably connected to the inner wall of the shell 1 through a slide rail group (including a slider and a slide rail). The sealing cylinder 14 is also connected to a discharge pipe that runs through the shell 1; and,

[0073] The transmission structure includes two sets of transmission racks 12 which are respectively arranged on the outer walls of the sealing cylinder 14 and the bottom frame 5 on the opposite side and staggered up and down. A transmission gear 13 is meshed between the two sets of transmission racks 12. The transmission gear 13 is rotatably arranged in the housing 1. The transmission structure is used to drive the sealing cylinder 14 to move downward when the bottom frame 5 moves upward, so as to Figure 1 It can be seen that initially, the driving rack 11 has a certain distance from the driven gear set 3. Therefore, when the bottom frame 5 moves upward first, the sealing cylinder 14 will move downward through the transmission rack 12 and the transmission gear 13. After it is completely separated from the detection end, the driving rack 11 and the driven gear set 3 are engaged, so as to prevent the sealing cylinder 14 from affecting the detector 4 from rotating with the top frame 17.

[0074] Preferably, a conductive sheet 1 21 for electrically connecting to a power source is embedded on the top frame 17 of the present embodiment, and a conductive sheet 2 22 and a conductive sheet 3 for contacting the conductive sheet 1 21 are embedded on the top of the sampling tube 6 and the sealing tube 14, respectively. The conductive sheet 2 22 is electrically connected to the negative pressure device 1 7, and the conductive sheet 3 is electrically connected to the negative pressure device 2 16;

[0075] When the sealing tube 14 is fitted with the top frame 17, the conductive sheet three is in contact with the conductive sheet one 21, and then the negative pressure device two 16 is powered on to work, so that the detection end is cleaned by the cleaning liquid sprayed by the spray part. When the bottom frame 5 is upward to make the sampling tube 6 fit with the top frame 17 (at this time the top frame 17 has been rotated to a preset angle), the conductive sheet two 22 is in contact with the conductive sheet one 21, and then the negative pressure device one 7 is powered on to work, and part of the phosphorus product is extracted into the sampling tube 6 to contact the detection end of the detector 4.

[0076] Preferably, the bottom of the sampling barrel 6 of this embodiment is provided with a plurality of groups of liquid outlets 19, a contact rod with a T-shaped vertical section is movably inserted at the bottom of the sampling barrel 6, the top of the contact rod extends into the sampling barrel 6 and is connected to a sealing plate 18 for closing the liquid outlet 19, an elastic member supporting the contact rod is provided on the outer wall thereof, the elastic member is, for example, a spring, one end of which is connected to the bottom end of the contact rod and the other end of which is connected to the bottom of the sampling barrel 6, a discharge seat 20 corresponding to the sampling barrel 6 is provided at the bottom of the housing 1, a convex block is provided in the discharge seat 20, and is used to enable the contact rod to drive the sealing plate 18 to open the liquid outlet 19;

[0077] When the sampling tube 6 moves downward with the bottom frame 5 to the preset position, Figure 1 As shown, under the action of the convex block, the contact rod pushes the sealing plate 18 to no longer fit the bottom of the sampling tube 6. At this time, the phosphorus product in the sampling tube 6 enters the discharge seat 20 through the liquid outlet 19, and is then discharged to a designated position through the discharge seat 20. The designated position may be a feed end of the next processing step or an external collection device, etc.;

[0078] It should be noted that the diameter of the sealing plate 18 is smaller than the inner diameter of the sampling tube 6 .

[0079] Preferably, the driving member of this embodiment includes:

[0080] A bidirectional screw 8, whose threads penetrate the bottom frame 5, and whose rotation can drive the bottom frame 5 to reciprocate up and down; and,

[0081] The rotating device 9 is arranged on the bottom inner wall of the housing 1 and connected to the bottom end of the bidirectional screw 8. The rotating device 9 is, for example, a motor and a reducer.

[0082] Preferably, the sampling tube 6 of this embodiment is provided with a cover body 24 which closes the top thereof, one end of the cover body 24 is connected with a stud, one end of the stud is rotated to penetrate the bottom frame 5 and then a threaded sleeve 26 is threadedly sleeved thereon, a bearing is provided at the connection between the stud and the bottom frame 5, the threaded sleeve 26 is connected to the bottom frame 5 through an elastic connecting member 25, the elastic connecting member 25 is, for example, an elastic telescopic rod, the bottom of the threaded sleeve 26 is fitted with a support seat fixed to the inner wall of the shell 1, the elastic connecting member 25 drives the threaded sleeve 26 to move during the upward movement of the bottom frame 5, the movement of the threaded sleeve 26 drives the stud to rotate through the thread, so that the cover body 24 rotates to a preset angle and no longer closes the sampling tube 6;

[0083] The output end of the negative pressure device 2 16 is also connected to the sampling tube 6 through the backwash pipe 27, and a solenoid valve electrically connected to the control module is provided in the pipeline. The ground monitoring station can send a control signal to the control module through the data transmission module to control the electrical appliances in the data acquisition terminal;

[0084] As attached Figure 1 As shown, in the initial state, the cover body 24 is in a state of closing the top of the sampling tube 6. When the bottom frame 5 is upward, the threaded sleeve 26 moves downward under the action of the elastic connecting piece 25, and then drives the stud to drive the cover body 24 to rotate under the cooperation of the thread, so that the cover body 24 no longer closes the sampling tube 6; when the cover body 24 closes the sampling tube 6, the solenoid valve can be controlled to open through the control module, so that the negative pressure device 216 extracts part of the cleaning liquid into the sampling tube 6 to clean the inside of the sampling tube 6 to prevent the residual phosphorus product in the sampling tube 6 from affecting the accuracy of the data collected next time.

[0085] Preferably, a liquid level sensor 23 is provided in the sampling tube 6 of the present embodiment. The liquid level sensor 23 is a conventional device in the field and is selected according to actual conditions. It is not described in detail here. The liquid level sensor 23 is electrically connected to the negative pressure device 7 and is used to send a signal to the control module when the liquid level height in the sampling tube 6 reaches a preset threshold. The control module controls the negative pressure device 7 to close to avoid too much or too little phosphorus product entering the sampling tube 6.

[0086] A phosphorus flow analysis and evaluation method based on a material flow analysis model, using the above-mentioned evaluation system, comprises the following steps:

[0087] S1: A data acquisition terminal is installed at the discharge end of any group of processing steps, and the phosphorus content data of the phosphorus product processed by the processing steps are collected through the data acquisition terminal, wherein the data acquisition terminal drives the frame 2 to move upward through the driving member when collecting the phosphorus content data of the phosphorus product until the detection end enters the sampling cylinder 6, and then the part of the phosphorus product flowing at the discharge end of the processing step is drawn into the sampling cylinder 6 through the negative pressure device 1 7, and finally the phosphorus content data of the phosphorus product is obtained through the detection by the detector 4;

[0088] S2: The ground monitoring station is configured to receive phosphorus content data, and obtain phosphorus flow analysis results based on a pre-built material flow analysis model, and perform qualitative evaluation based on the phosphorus flow analysis results.

[0089] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A phosphorus flow analysis and evaluation system based on a material flow analysis model, the system being applied to a phosphorus product processing device, the phosphorus product processing device comprising at least two groups of processing steps, each group of the processing steps having a discharge end, characterized in that: The system includes several data collection terminals and ground monitoring stations wirelessly connected to them; A plurality of said data collection terminals are respectively arranged at the discharge end of any group of processing steps, and are configured to collect phosphorus content data of the phosphorus products processed through the processing steps; The ground monitoring station is configured to receive phosphorus content data, and obtain phosphorus flow analysis results based on a pre-built material flow analysis model, and perform qualitative evaluation based on the phosphorus flow analysis results; wherein the data acquisition terminal includes: Housing (1); A frame body 1 is arranged in the housing (1), a detector (4) is arranged on the frame body, and the detector (4) has a detection end penetrating the frame body 1; A second frame is arranged in the housing (1) and below the first frame. A sampling cylinder (6) is arranged on the second frame. The sampling cylinder (6) is connected to the discharge end of the processing step through a negative pressure device (7); and The driving member is arranged in the housing (1) and is used to drive the second frame to move until the detection end enters the sampling tube (6).

2. The evaluation system according to claim 1, characterized in that: The processing steps include: S1: Put the raw materials required for preparing the phosphorus product into the reactor equipment for processing, and the processed raw materials are discharged from the discharge end of the reactor equipment; S2: The raw materials discharged from the discharge end of the reactor equipment enter the filtering equipment for processing, and the processed raw materials are discharged from the discharge end of the filtering equipment; S3: The raw materials discharged from the discharge end of the filtering device enter the cooling device for processing, and the processed raw materials are discharged from the discharge end of the cooling device.

3. The evaluation system according to claim 1, characterized in that: The frame 1 comprises: A rotating shaft (2), one end of which is rotatably connected to the top inner wall of the housing (1), and the other end of which is connected to a top frame (17) on which the detector (4) is installed; and A driven gear set (3), the axis of which is perpendicular to the axis of the rotating shaft (2), and the shaft of the driven gear set (3) is drivingly connected to the rotating shaft (2); The frame 2 comprises: A bottom frame (5) is slidably connected to the inner wall of the housing (1), and the sampling tube (6) is arranged on the bottom frame (5) and staggered with the detector (4); and, An elastic connecting member (10) is connected to one end of the bottom frame (5). The elastic connecting member (10) is connected to a driving rack (11). The driving rack (11) is used to drive the driven gear set (3) to rotate by a preset angle when the bottom frame (5) moves upward, so that the detection end of the detector (4) and the sampling tube (6) are aligned. When the driven gear set (3) rotates by the preset angle, a gap exists between the sampling tube (6) and the opposite end of the detector (4), and at the same time, the top of the driving rack (11) is in contact with the top inner wall of the shell (1).

4. The evaluation system according to claim 3, characterized in that: The system further includes a liquid supply portion, the liquid supply portion comprising: A sealing cylinder (14) is hollow at the top and is movably sleeved on the outside of the detection end of the detector (4) and is sealed and fitted with the bottom of the top frame (17). A spraying part (15) is arranged inside the sealing cylinder (14). The spraying part (15) is connected to the output end of the second negative pressure device (16). The input end of the second negative pressure device (16) is connected to the liquid supply device. The sealing cylinder (14) is slidably connected to the inner wall of the housing (1). The sealing cylinder (14) is also connected to a liquid discharge pipe; and, The transmission structure comprises two sets of transmission racks (12) which are respectively arranged on the outer walls of opposite sides of the sealing cylinder (14) and the bottom frame (5) and are staggered up and down, a transmission gear (13) is meshed between the two sets of transmission racks (12), and the transmission gear (13) is rotatably arranged in the housing (1). The transmission structure is used to drive the sealing cylinder (14) to move downward when the bottom frame (5) moves upward.

5. The evaluation system according to claim 4, characterized in that: A conductive sheet 1 (21) for electrically connecting to a power source is embedded on the top frame (17); a conductive sheet 2 (22) and a conductive sheet 3 for contacting the conductive sheet 1 (21) are respectively embedded on the top of the sampling tube (6) and the sealing tube (14); the conductive sheet 2 (22) is electrically connected to the negative pressure device 1 (7), and the conductive sheet 3 is electrically connected to the negative pressure device 2 (16).

6. The evaluation system according to claim 3, characterized in that: The bottom of the sampling barrel (6) is provided with a plurality of groups of liquid outlets (19), the bottom of the sampling barrel (6) is movably provided with a contact rod, the top of the contact rod extends into the sampling barrel (6) and is connected to a sealing plate (18) for closing the liquid outlet (19), the outer wall of the contact rod is provided with an elastic member for supporting it, the bottom of the shell (1) is provided with a discharge seat (20) corresponding to the sampling barrel (6), and a protrusion is provided in the discharge seat (20) for enabling the contact rod to drive the sealing plate (18) to open the liquid outlet (19).

7. The evaluation system according to claim 3, characterized in that: The driving member comprises: a bidirectional screw (8), the threads of which penetrate the bottom frame (5); and, The rotating device (9) is arranged on the inner wall of the bottom of the housing (1) and is connected to the bottom end of the bidirectional screw (8).

8. The evaluation system according to claim 4, characterized in that: The sampling tube (6) is provided with a cover (24) for closing the top thereof, one end of the cover (24) is connected with a stud, one end of the stud is rotated to pass through the bottom frame (5) and then is threadedly sleeved with a threaded sleeve (26), the threaded sleeve (26) is connected to the bottom frame (5) through a second elastic connector (25), the bottom of the threaded sleeve (26) is in contact with a support seat fixed to the inner wall of the shell (1), and the second elastic connector (25) drives the threaded sleeve (26) to rotate the stud when the bottom frame (5) moves upward, thereby causing the cover (24) to rotate to a preset angle and no longer close the sampling tube (6); The output end of the second negative pressure device (16) is also connected to the sampling cylinder (6) through a backwash pipe (27), and a solenoid valve electrically connected to the control module is provided in the pipe.

9. The evaluation system according to claim 8, characterized in that: A liquid level sensor (23) is provided in the sampling tube (6), and the liquid level sensor (23) is electrically connected to the negative pressure device (7) and is used to send a signal to the control module when the liquid level in the sampling tube (6) reaches a preset threshold value, and the control module controls the negative pressure device (7) to be closed.

10. A phosphorus flow analysis and evaluation method based on a material flow analysis model, using an evaluation system as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1: A data acquisition terminal is installed at the discharge end of any group of processing steps, and the phosphorus content data of the phosphorus product processed by the processing steps are collected through the data acquisition terminal; wherein, when collecting the phosphorus content data of the phosphorus product, the data acquisition terminal drives the frame 2 to move upward through the driving member until the detection end enters the sampling cylinder (6), and then the part of the phosphorus product flowing at the discharge end of the processing step is drawn into the sampling cylinder (6) through the negative pressure device 1 (7), and finally the phosphorus content data of the phosphorus product is obtained through the detection by the detector (4); S2: The ground monitoring station is configured to receive phosphorus content data, and obtain phosphorus flow analysis results based on a pre-built material flow analysis model, and perform qualitative evaluation based on the phosphorus flow analysis results.

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