A comprehensive balanced infiltration intelligent system for sugar cane mill squeezing

Abstract

The utility model discloses a kind of sugarcane sugar factory squeezing overall balanced infiltration intelligent system, it is related to sugarcane squeezing production technical field, including 1#~5# mill, hot water tank, cane silk near-infrared spectroscopy online detection system, cane silk weight measurement control system, squeezing overall balanced infiltration intelligent system, squeezing balanced feeding automatic control system and secondary cane belt, can online real-time monitoring cane silk fiber fraction and cane silk weight and other key indicators, and combine 1# mill feeding cane silk weight data, realize by squeezing overall balanced infiltration intelligent system based on the online dynamic automatic control of sugarcane fiber fraction weight proportion: on one hand, the pneumatic regulating valve on infiltration water pipe can be measured and controlled to accurately adjust 5# mill infiltration water volume;Secondly, the pneumatic regulating valve on infiltration juice pipeline can be synchronously measured and controlled to automatically balanced adjustment 2#, 3#, 4# mill respectively corresponding infiltration cane juice flow before each, and synchronously timing adjustment pneumatic regulating valve on infiltration water pipe to supplement infiltration water volume to adapt the sufficiency of infiltration total flow.

Description

Technical Field

[0001] This utility model relates to the field of sugarcane pressing production technology, specifically to an intelligent system for comprehensive and balanced permeation during sugarcane pressing in sugar mills. Background Technology

[0002] The sugarcane mill's pressing system employs a five-press unit structure. Pre-treated sugarcane fibers are conveyed from the secondary conveyor belt to press #1, and then sequentially to presses #2, #3, #4, and #5 for multi-stage pressing via a rake-tooth machine. The pressing and percolation system uses a dual percolation mechanism: process hot water is pumped via dedicated pipelines to the bagasse entering press #5 (i.e., the bagasse output from press #4) as percolation water. Simultaneously, the juice from the subsequent presses is pumped back to the bagasse entering the preceding presses as percolation juice—the juice from press #5 is sent to the bagasse entering press #4, the juice from press #4 to the bagasse entering press #3, and the juice from press #3 to the bagasse entering press #2. The juice from presses #1 and #2 is combined into a mixed juice and sent to subsequent processes. During this process, the amount of soaking water added to the bagasse entering the No. 5 press is automatically regulated by a hot water regulating valve and flow meter, which is linked to the weight of the sugarcane being pressed. However, the juice return system of the No. 5, No. 4, and No. 3 presses relies entirely on manual operation: the operator needs to manually adjust the opening of the juice pump outlet valve to control the soaking juice flow of each press. Although this mechanism can improve the sugar extraction rate of sugarcane through multi-stage soaking, it has obvious limitations due to its single control dimension.

[0003] The main shortcomings of existing technologies lie in the lack of uniformity and adaptability in the infiltration process. On the one hand, the amount of infiltration water added to the bagasse entering the No. 5 press is adjusted only according to the proportion of the total weight of sugarcane entering the No. 1 press, failing to achieve dynamic optimization by incorporating the key indicator of sugarcane fiber content. When the quality of the sugarcane raw material fluctuates or the pressing volume is uneven, the amount of infiltration water cannot accurately match the actual process requirements—insufficient water will lead to increased residual sugar content in the bagasse, reducing the pressing extraction rate; excessive water will reduce the hardness of the mixed juice, not only increasing the energy consumption burden of subsequent evaporation processes but also increasing the difficulty of cleaning treatment due to increased dissolution of non-sugar impurities. On the other hand, the flow rate of the sugarcane juice from the later press returning to the bagasse entering the earlier press for infiltration is entirely controlled manually by adjusting the opening of the juice pump outlet valve based on experience. This cannot respond in real time to changes in the fiber content of the sugarcane entering the press, nor can it ensure a balanced distribution of infiltration juice among the presses. This extensive operation results in poor uniformity of bagasse absorption of infiltration juice, unstable sugar washing effect, and a significant increase in the intensity of manual intervention and the risk of operational errors. Overall, existing pressing and percolation systems lack intelligent collaborative control based on the weight ratio of sugarcane fiber, making it difficult to achieve efficient utilization of percolation resources and restricting further improvement of sugar extraction rate. To address this, we propose an intelligent system for comprehensive and balanced percolation in sugarcane mills. Utility Model Content

[0004] The technical problem this invention aims to solve is to overcome existing defects and provide an intelligent system for comprehensive and balanced percolation in sugarcane mills. This system can monitor key indicators such as fiber content, sucrose content, sucrose content, purity, and weight of sugarcane fibers in real-time online using a near-infrared spectrometer and a sugarcane fiber weight analyzer. Combined with the sugarcane fiber weight data collected by the sugarcane fiber weight monitoring and control system from the No. 1 press, the system achieves online dynamic automatic control based on the sugarcane fiber weight ratio. Firstly, it precisely adjusts the percolation water volume of the No. 5 press by controlling the pneumatic regulating valve and electromagnetic flow meter on the percolation water pipe before the No. 5 press. Secondly, it automatically and evenly adjusts the percolation juice flow rate of each of the No. 2, No. 3, and No. 4 presses by simultaneously controlling the pneumatic regulating valves and electromagnetic flow meters on the percolation juice pipes or their return pipes before the No. 2, No. 3, and No. 4 presses, and synchronously adjusts the pneumatic regulating valves and electromagnetic flow meters on their respective supplementary percolation water pipes to supplement the percolation water volume to match the sufficiency of the total percolation flow (juice + water). Simultaneously, the automatic control system for balanced feeding during pressing coordinates and regulates the feeding distribution of each press, thereby optimizing the stability of permeation balance, improving the pressing extraction rate, reducing sugar loss, and reducing the need for manual intervention, which can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an intelligent system for comprehensive and balanced permeation in a sugarcane mill, comprising a No. 1 press, a No. 2 press, a No. 3 press, a No. 4 press, a No. 5 press, a hot water tank, a near-infrared spectroscopy online detection system for sugarcane fibers, a sugarcane fiber weight measurement and control system, an intelligent system for comprehensive and balanced permeation in the pressing process, an automatic control system for balanced feeding in the pressing process, and a secondary sugarcane belt. The secondary sugarcane belt is connected to the high-level trough of the No. 1 press. The slag outlet of the No. 1 press is connected to the high-level trough of the No. 2 press, the slag outlet of the No. 2 press is connected to the high-level trough of the No. 3 press, the slag outlet of the No. 3 press is connected to the high-level trough of the No. 4 press, and the slag outlet of the No. 4 press is connected to the high-level trough of the No. 5 press via a rake tooth machine. A near-infrared spectrometer and a sugarcane fiber weight detector are installed on the secondary sugarcane belt.

[0006] Furthermore, the outlet of the hot water tank is connected to a shut-off valve, a hot water pump, and a main percolation water pipe. The main percolation water pipe is connected to a No. 5 percolation water pipe and a supplementary percolation water main pipe. The No. 5 percolation water pipe is connected to the bagasse discharge port of the No. 4 press. The supplementary percolation water main pipe is connected to a No. 4 supplementary percolation water branch pipe, a No. 3 supplementary percolation water branch pipe, and a No. 2 supplementary percolation water branch pipe. The No. 4 supplementary percolation water branch pipe is connected to the bagasse discharge port of the No. 3 press. The No. 3 supplementary percolation water branch pipe is connected to the bagasse discharge port of the No. 2 press. The No. 2 supplementary percolation water branch pipe is connected to the bagasse discharge port of the No. 1 press. Electromagnetic flow meters and pneumatic regulating valves are installed on the No. 5 percolation water pipe, the No. 4 supplementary percolation water branch pipe, the No. 3 supplementary percolation water branch pipe, and the No. 2 supplementary percolation water branch pipe. The electromagnetic flow meters and pneumatic regulating valves of the percolation hot water system are bidirectionally electrically connected to the intelligent system for comprehensive and balanced percolation during pressing.

[0007] Furthermore, each of the five juice tanks (1#, 2#, 3#, 4#, and 5#) is externally equipped with a juice tank. The inlets of these five juice tanks are connected to the discharge pipes of the respective machines. The five juice tanks are designated as juice tank #1, juice tank #2, juice tank #3, juice tank #4, and juice tank #5. The outlets of all five juice tanks are connected to juice pipes. The juice pipe of the juice tank corresponding to machine #5 is connected to the bagasse discharge port of machine #3. The juice pipe of the juice tank corresponding to machine #4 is connected to the bagasse discharge port of machine #4. The juice pipe of the juice tank is connected to the bagasse discharge port of the No. 2 press. The juice pipe of the No. 3 juice tank, corresponding to the No. 3 press, is connected to the bagasse discharge port of the No. 1 press. The No. 1 and No. 2 juice tanks, corresponding to the No. 1 and No. 2 presses, are connected to the mixed juice conveying pipe. A juice pump and a gate valve are installed on the juice tank outlet pipe and the mixed juice conveying pipe. Electromagnetic flow meters are installed on the juice pipes at the outlets of the No. 3, No. 4, and No. 5 juice tanks. The electromagnetic flow meters are bidirectionally electrically connected to the intelligent system for comprehensive and balanced permeation during pressing.

[0008] Furthermore, pneumatic regulating valves are installed on the sugarcane juice pipelines at the outlets of the No. 3, No. 4, and No. 5 sugarcane juice tanks. These pneumatic regulating valves are bidirectionally electrically connected to the intelligent system for comprehensive and balanced percolation during pressing. The intelligent system controls the valve opening precisely, and through the pneumatic regulating valves and electromagnetic flow meters, the percolation juice flow rate is automatically adjusted and controlled on the sugarcane juice pipeline. This ensures that the sugarcane juice delivery flow rate matches the pressing and percolation juice flow rate requirements, reduces human error, and improves response speed and process efficiency.

[0009] Furthermore, each of the juice pipes at the outlets of the juice tanks #3, #4, and #5 of the #3, #4, and #5 presses is connected to a return pipe. These three return pipes are connected to the inlets of their respective juice tanks. Each return pipe is equipped with a pneumatic regulating valve, which is bidirectionally electrically connected to the intelligent pressing and balanced permeation system. The return pipes return excess juice to the corresponding juice tanks #3, #4, and #5 at the juice pump outlet. The intelligent pressing and balanced permeation system precisely controls the valve opening. Automatic adjustment and control of the permeation juice flow rate is achieved through the pneumatic regulating valve on the return pipe and the electromagnetic flowmeter on the juice pipe, ensuring that the juice delivery flow rate matches the pressing and permeation juice flow rate requirements, reducing manual operation errors, and improving response speed and process efficiency.

[0010] Furthermore, level gauges are installed on the sides of the hot water tank and the No. 3, No. 4, and No. 5 sugarcane juice tanks. The level gauges are bidirectionally electrically connected to the intelligent system for comprehensive and balanced permeation during pressing. The level gauges monitor the liquid level in the hot water tank and the sugarcane juice tank in real time and feed the data back to the intelligent system for comprehensive and balanced permeation during pressing, ensuring a continuous, balanced, and stable permeation process and improving the safety and reliability of the system.

[0011] Furthermore, the near-infrared spectrometer is bidirectionally electrically connected to the sugarcane fiber near-infrared spectroscopy online detection system, and the sugarcane fiber weight detector is bidirectionally electrically connected to the sugarcane fiber weight measurement and control system. The intelligent system for comprehensive and balanced permeation during pressing is bidirectionally electrically connected to the sugarcane fiber near-infrared spectroscopy online detection system, the sugarcane fiber weight measurement and control system, and the automatic control system for balanced feeding during pressing. Material level gauges are installed on the high-level tanks of presses #1, #2, #3, #4, and #5, and the material level gauges are bidirectionally electrically connected to the automatic control system for balanced feeding during pressing to adjust and control the balanced feeding amount of each press. By using a near-infrared spectrometer and a sugarcane fiber weight analyzer to monitor the composition and weight of the sugarcane fiber fed into the No. 1 press in real time, an intelligent system for comprehensive and balanced percolation is implemented, achieving online dynamic automatic control based on the weight ratio of sugarcane fiber. This is achieved through two main methods: firstly, by monitoring and controlling the pneumatic regulating valves and electromagnetic flowmeters on the percolation water pipe before the No. 5 press to precisely adjust the percolation water volume of the No. 5 press; secondly, by simultaneously monitoring and controlling the pneumatic regulating valves and electromagnetic flowmeters on the percolation juice pipes or their return pipes before the No. 2, No. 3, and No. 4 presses to automatically and evenly adjust the percolation juice flow rate of each press, and simultaneously adjust the pneumatic regulating valves and electromagnetic flowmeters on their respective supplementary percolation water pipes to supplement the percolation water volume to match the sufficiency of the total percolation flow (juice + water). This optimizes the stability of percolation balance, increases the pressing extraction rate, reduces sugar loss, and reduces the need for manual intervention, thereby improving overall pressing capacity and resource utilization, while ensuring stable operation of the pressing production system and reducing energy consumption and maintenance costs.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This intelligent system for comprehensive and balanced percolation in sugarcane mills has the following advantages:

[0013] 1. By installing a near-infrared spectrometer and a sugarcane fiber weight detector on the secondary pressing belt, the fiber content and weight of the sugarcane fiber fed into the No. 1 press can be directly and accurately measured online in real time. At the same time, the high-level tank level gauges of each press are linked to the pressing balanced feeding control system and the intelligent pressing balanced permeation system. By installing electromagnetic flow meters and pneumatic regulating valves on the sugarcane juice pipes (or return pipes) at the outlets of the No. 5, No. 4, and No. 3 juice tanks, the online dynamic automatic control of the "intelligent pressing balanced permeation system" realizes the balanced feeding of each press and the precise adjustment and addition of the permeation juice to the weight ratio of sugarcane fiber. This further improves the sugar extraction rate of sugarcane, ensuring the quality of the mixed juice while saving permeation water consumption, reducing the load of subsequent evaporation, helping to improve product quality, and creating favorable conditions for improving the boiling recovery rate.

[0014] 2. Further construct a multi-level percolation balance compensation mechanism. Electromagnetic flow meters and pneumatic regulating valves are installed on the No. 4, No. 3, and No. 2 supplementary percolation water branch pipes, respectively. They are controlled by the intelligent system for full-scale and balanced percolation of the pressing. The electromagnetic flow meters and pneumatic regulating valves of the supplementary percolation water are linked in a closed loop with the liquid level gauge of the sugarcane juice tank, which effectively solves the pain point of imbalance caused by the traditional manual control of the reflux juice volume. Based on real-time monitoring of the liquid levels in sugarcane juice tanks #5, #4, and #3, and a preset fiber fraction model for the infused juice, the system intelligently intervenes with hot water replenishment at the bagasse infusion points of presses #3, #2, and #1 when the liquid level in the sugarcane juice tanks is low and the infusion volume is relatively small. This ensures that the total infusion flow rate (sugarcane juice + water) of bagasse in presses #3, #2, and #1 is always within the optimal range for the process. This capability not only significantly reduces the intensity of manual operation and the risk of error, but also enhances the consistency of sugar washing efficiency by continuously maintaining the uniformity of bagasse absorption. Ultimately, it achieves a simultaneous leap in pressing extraction rate and resource utilization efficiency, laying the foundation for energy conservation and consumption reduction throughout the entire sugar production chain. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of Mode 1 of the present utility model;

[0016] Figure 2 This is a schematic diagram of the second mode of this utility model.

[0017] In the diagram: 1. Press #1, 2. Press #2, 3. Press #3, 4. Press #4, 5. Press #5, 6. Hot water tank, 7. Secondary sugarcane strip, 8. Near-infrared spectrometer, 9. Sugarcane fiber weight detector, 10. Sugarcane fiber near-infrared spectroscopy online detection system, 11. Sugarcane fiber weight measurement and control system, 12. Intelligent system for comprehensive and balanced pressing and permeation, 13. Automatic control system for balanced pressing and feeding, 14. Permeation water main pipe, 15. Permeation water pipe #5, 16. Return pipe, 17. Supplemental permeation water main pipe, 18. Supplemental permeation water branch pipe #4, 19. Supplemental permeation water branch pipe #3, 20. Supplemental permeation water branch pipe #2. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0019] Please see Figure 1-2 The present invention provides the following embodiments:

[0020] Example 1:

[0021] A fully balanced and intelligent sugarcane pressing system for a sugarcane mill includes a #1 press, a #2 press, a #3 press, a #4 press, and a #5 press; a hot water tank; a near-infrared spectroscopy online detection system for sugarcane fibers; a sugarcane fiber weight measurement and control system; a fully balanced and intelligent pressing system for permeation; an automatic feeding control system for balanced pressing; and a secondary sugarcane belt 7. The secondary sugarcane belt 7 is connected to the high-level trough of the #1 press. The slag outlet of the #1 press is connected to the high-level trough of the #2 press, the slag outlet of the #2 press is connected to the high-level trough of the #3 press, the slag outlet of the #3 press is connected to the high-level trough of the #4 press, and the slag outlet of the #4 press is connected to the high-level trough of the #5 press via a rake tooth machine. A near-infrared spectrometer 8 and a sugarcane fiber weight detector are installed on the secondary sugarcane belt 7. The outlet of the measuring instrument 9 and the hot water tank 6 is connected to a shut-off valve, a hot water pump, and a main percolation water pipe 14. The main percolation water pipe 14 is connected to a 5# percolation water pipe 15 and a supplementary percolation water main pipe 17. The 5# percolation water pipe 15 is connected to the bagasse discharge port of the 4# press. The supplementary percolation water main pipe 17 is connected to 4# supplementary percolation water branch pipes 18, 3# supplementary percolation water branch pipes 19, and 2# supplementary percolation water branch pipes 20. The 4# supplementary percolation water branch pipe 18 is connected to the bagasse discharge port of the 3# press, the 3# supplementary percolation water branch pipe 19 is connected to the bagasse discharge port of the 2# press, and the 2# supplementary percolation water branch pipe 20 is connected to the bagasse discharge port of the 1# press. The 5# percolation water pipe 15 and the 4# supplementary percolation water branch pipes 18, 3# supplementary percolation water branch pipes 19, and 2# supplementary percolation water branch pipes 20 are connected to the main percolation water main pipe 17. Electromagnetic flow meters and pneumatic regulating valves are installed on the infiltration water branch pipes 20. The electromagnetic flow meters and pneumatic regulating valves for the infiltration hot water are bidirectionally electrically connected to the intelligent infiltration system 12 for comprehensive and balanced pressing. Sugarcane juice tanks are installed on the outside of the five sugarcane juice tanks, which are respectively connected to the juice discharge pipes of the five sugarcane juice tanks 1, 2, 3, 4, and 5. The five sugarcane juice tanks are designated as sugarcane juice tank 1, 2, 3, 4, and 5. Sugarcane juice pipes are connected to the outlets of the five sugarcane juice tanks. The sugarcane juice pipe of the sugarcane juice tank corresponding to the sugarcane juice tank of ... The juice pipe of the #1 juice tank is connected to the bagasse discharge port of the #2 press 2. The juice pipe of the #3 juice tank, corresponding to the #3 press 3, is connected to the bagasse discharge port of the #1 press 1. The #1 and #2 juice tanks, corresponding to the #1 and #2 presses 1 and 2 respectively, are connected to the mixed juice conveying pipe. A juice pump and gate valve are installed on both the juice tank outlet pipe and the mixed juice conveying pipe. Electromagnetic flow meters are installed on the juice pipes at the outlets of the #3, #4, and #5 juice tanks. These electromagnetic flow meters are bidirectionally electrically connected to the intelligent pressing system 12 for comprehensive and balanced permeation. Pneumatic regulating valves are installed on the juice pipes at the outlets of the #3, #4, and #5 juice tanks. These pneumatic regulating valves are bidirectionally electrically connected to the intelligent pressing system 12 for comprehensive and balanced permeation.Level gauges are installed on the sides of hot water tank 6 and sugarcane juice tanks #3, #4, and #5. These level gauges are bidirectionally electrically connected to the intelligent system 12 for comprehensive and balanced permeation during pressing. Near-infrared spectrometer 8 is bidirectionally electrically connected to the online near-infrared spectroscopy detection system 10 for sugarcane fiber. Sugarcane fiber weight detector 9 is bidirectionally electrically connected to the sugarcane fiber weight measurement and control system 11. The intelligent system 12 for comprehensive and balanced permeation during pressing is bidirectionally electrically connected to the online near-infrared spectroscopy detection system 10, the sugarcane fiber weight measurement and control system 11, and the automatic feeding control system 13 for balanced pressing. Material level gauges are installed on the high-level tanks of presses #1, #2, #3, #4, and #5, and these level gauges are bidirectionally electrically connected to the automatic feeding control system 13 for balanced pressing.

[0022] In this embodiment, the online real-time monitoring of sugarcane fiber content and weight indicators is achieved using a near-infrared spectrometer 8 and a sugarcane fiber weight detector 9. Combined with the sugarcane fiber weight data collected by the sugarcane fiber weight measurement and control system 11 from the sugarcane fiber weight of the No. 1 press, the system enables online dynamic automatic control based on the sugarcane fiber weight ratio by a fully balanced and intelligent pressing and permeation system. This is achieved by: firstly, precisely adjusting the permeation water volume of the bagasse entering the No. 5 press by controlling the pneumatic regulating valve and electromagnetic flow meter on the No. 5 permeation water pipe 15; and secondly, simultaneously monitoring and controlling the No. 2, No. 3, and No. 4 presses. Pneumatic regulating valves and electromagnetic flow meters on the infiltration juice pipelines before machine 4 (i.e., juice pipelines #3, #4, and #5) automatically and evenly regulate the infiltration juice flow rate corresponding to the bagasse entering the crushed sugarcane before machines #2, #3, and #4. Simultaneously, pneumatic regulating valves and electromagnetic flow meters on the corresponding supplementary infiltration water branch pipes of #2, #3, and #4 are adjusted to supplement the infiltration water volume to match the sufficiency of the total infiltration flow rate (juice + water). At the same time, the level gauges in the high-level tanks of each crusher are linked to the automatic pressing and equalizing feed control system 13 to regulate and control the feed amount of each crusher evenly. This system is suitable for sugarcane sugar mills requiring efficient and even infiltration in pressing production scenarios. It optimizes infiltration uniformity and improves pressing extraction rate, thereby reducing sugar loss, stabilizing the quality of mixed juice, reducing subsequent evaporation load, and reducing the need for manual intervention, ultimately achieving efficient and stable automated production.

[0023] Example 2:

[0024] A fully balanced and intelligent sugarcane pressing system for a sugarcane mill includes a #1 press, a #2 press, a #3 press, a #4 press, and a #5 press; a hot water tank; a near-infrared spectroscopy online detection system for sugarcane fibers; a sugarcane fiber weight measurement and control system; a fully balanced and intelligent pressing system for permeation; an automatic feeding control system for balanced pressing; and a secondary sugarcane belt 7. The secondary sugarcane belt 7 is connected to the high-level trough of the #1 press. The slag outlet of the #1 press is connected to the high-level trough of the #2 press, the slag outlet of the #2 press is connected to the high-level trough of the #3 press, the slag outlet of the #3 press is connected to the high-level trough of the #4 press, and the slag outlet of the #4 press is connected to the high-level trough of the #5 press via a rake tooth machine. A near-infrared spectrometer 8 and a sugarcane fiber weight detector 9 are installed on the secondary sugarcane belt 7.

[0025] The outlet of hot water tank 6 is connected to a shut-off valve, a hot water pump, and a main percolation water pipe 14. The main percolation water pipe 14 is connected to a 5# percolation water pipe 15 and a supplementary percolation water main pipe 17. The 5# percolation water pipe 15 is connected to the bagasse discharge port of the 4# press. The supplementary percolation water main pipe 17 is connected to a 4# supplementary percolation water branch pipe 18, a 3# supplementary percolation water branch pipe 19, and a 2# supplementary percolation water branch pipe 20. The 4# supplementary percolation water branch pipe 18 is connected to the bagasse discharge port of the 3# press, the 3# supplementary percolation water branch pipe 19 is connected to the bagasse discharge port of the 2# press, and the 2# supplementary percolation water branch pipe 20 is connected to the bagasse discharge port of the 1# press. The 5# percolation water pipe 15 and the 4#, 3#, and 2# supplementary percolation water branch pipes 18, 19, and 20 are connected to the main percolation water main pipe 17. Each branch pipe 20 is equipped with an electromagnetic flow meter and a pneumatic regulating valve. The electromagnetic flow meter and pneumatic regulating valve for the infiltration hot water are bidirectionally electrically connected to the intelligent infiltration system 12 for comprehensive and balanced pressing. Each of the five presses (1#, 2#, 3#, 4#, and 5#) has a sugarcane juice tank on its exterior. The inlets of the five sugarcane juice tanks are connected to the juice discharge pipes of each press, respectively. The five sugarcane juice tanks are designated as 1#, 2#, 3#, 4#, and 5#. Each of the five sugarcane juice tanks has a sugarcane juice pipe connected to its outlet. The sugarcane juice pipe of the 5# sugarcane juice tank corresponding to press 5# is connected to the bagasse discharge port of press 3#. The sugarcane juice pipe of the 4# sugarcane juice tank corresponding to press 4# is connected to the 5# sugarcane juice tank. The juice pipe of the cane juice tank is connected to the bagasse discharge port of the No. 2 press. The juice pipe of the No. 3 juice tank corresponding to the No. 3 press is connected to the bagasse discharge port of the No. 1 press. The No. 1 and No. 2 juice tanks corresponding to the No. 1 and No. 2 presses are connected to the mixed juice conveying pipe. A juice pump and a gate valve are installed on the juice tank outlet pipe and the mixed juice conveying pipe. Electromagnetic flow meters are installed on the juice pipes at the outlets of the No. 3, No. 4, and No. 5 juice tanks. The electromagnetic flow meters are bidirectionally electrically connected to the intelligent system 12 for comprehensive and balanced permeation during pressing. Return pipes 16 are connected to the juice pipes at the outlets of the No. 3, No. 4, and No. 5 juice tanks corresponding to the No. 3, No. 4, and No. 5 presses. The three return pipes 16 are respectively Connected to the inlets of the corresponding No. 3, No. 4, and No. 5 sugarcane juice tanks, pneumatic regulating valves are installed on the return pipes 16. These pneumatic regulating valves are bidirectionally electrically connected to the intelligent system 12 for comprehensive and balanced pressing and impregnation. Level gauges are installed on the sides of the hot water tank 6 and the No. 3, No. 4, and No. 5 sugarcane juice tanks. These level gauges are bidirectionally electrically connected to the intelligent system 12 for comprehensive and balanced pressing and impregnation. The near-infrared spectrometer 8 is bidirectionally electrically connected to the online near-infrared spectroscopy detection system 10 for sugarcane fibers. The sugarcane fiber weight detector 9 is bidirectionally electrically connected to the sugarcane fiber weight measurement and control system 11. The intelligent system 12 for comprehensive and balanced pressing and impregnation is bidirectionally electrically connected to the online near-infrared spectroscopy detection system 10 for sugarcane fibers, the sugarcane fiber weight measurement and control system 11, and the automatic control system for balanced pressing and feeding 13, respectively.Material level gauges are installed on the high-level tanks of presses #1, #2, #3, #4, and #5. These level gauges are bidirectionally electrically connected to the automatic feeding and pressing control system 13.

[0026] In this embodiment, the fiber content and weight of sugarcane fibers are monitored online in real time by a near-infrared spectrometer 8 and a sugarcane fiber weight detector 9. Combined with the sugarcane fiber weight data collected by the sugarcane fiber weight measurement and control system 11 from the sugarcane fiber weight of the No. 1 press, online dynamic automatic control based on the sugarcane fiber weight ratio is achieved by a fully balanced and intelligent pressing and permeation system. This is achieved by: firstly, by controlling the pneumatic regulating valve and electromagnetic flow meter on the No. 5 permeation water pipe 15 to precisely adjust the permeation water volume of the bagasse entering the No. 5 press; and secondly, by simultaneously monitoring and controlling the No. 2, No. 3, and No. 4 presses. Electromagnetic flow meters on the pre-infiltration juice pipeline and pneumatic regulating valves on the juice return pipes 16 (#3, #4, #5) automatically and evenly regulate the infiltration juice flow rate corresponding to the bagasse entering the front of the #2, #3, and #4 presses. Simultaneously, the pneumatic regulating valves and electromagnetic flow meters on the corresponding supplementary infiltration water branch pipes (#2, #3, #4) are adjusted to supplement the infiltration water volume to match the sufficiency of the total infiltration flow rate (juice + water). At the same time, the level gauges in the high-level tanks of each press are linked to the automatic pressing and equalizing feed control system 13 to regulate and control the feed amount of each press to achieve balance. This system is suitable for sugarcane sugar mills requiring efficient and balanced infiltration during pressing production. It optimizes infiltration balance and improves pressing extraction rate, thereby reducing sugar loss, stabilizing mixed juice quality, reducing subsequent evaporation load, and lowering the need for manual intervention, ultimately achieving efficient and stable automated production.

[0027] The working principle of the intelligent system for comprehensive and balanced permeation in sugarcane mills provided by this utility model is as follows: Pre-treated sugarcane fibers are conveyed to the high-level trough of the No. 1 press via a secondary conveyor belt 7, entering the No. 1 press. During the conveying process, a near-infrared spectrometer 8 installed on the secondary conveyor belt monitors key indicators such as fiber content, sucrose content, sucrose weight, and sugar purity online in real time. Simultaneously, a sugarcane fiber weight detector 9 installed on the secondary conveyor belt monitors the weight of the sugarcane fibers fed into the No. 1 press. The above detection data are processed by the online near-infrared spectroscopy detection system 10 and the sugarcane fiber weight measurement and control system 11, and then transmitted to the intelligent system for comprehensive and balanced permeation in sugarcane mills 12. This intelligent system for comprehensive and balanced permeation in sugarcane mills calculates the weight ratio of sugarcane fiber (%) based on the fiber content. The system dynamically generates control commands for the percolation water volume of bagasse entering the 5th feeder of the #5 press and the percolation juice volume of bagasse entering the 4th, 3rd, and 2nd feeders of the #4, #3, and #2 presses, respectively. Regarding percolation water control, the hot water pipe at the outlet of the hot water tank 6 is connected to a shut-off valve, a hot water pump, the main percolation water pipe 14, the #5 percolation water pipe 15, the supplementary percolation water main pipe 17, the #4 supplementary percolation water branch pipe 18, the #3 supplementary percolation water branch pipe 19, and the #2 supplementary percolation water branch pipe 20. Electromagnetic flow meters and pneumatic regulating valves are installed on the #5 percolation water pipe 15 and the #4, #3, and #2 supplementary percolation water branch pipes. The percolation hot water volume (% relative to fiber content) of the bagasse entering the 5th feeder of the #5 press is determined by the intelligent percolation system 12 based on the weight of the sugarcane fibers, fiber content, and the set percolation water command. After calculating a corresponding flow rate, the system automatically adjusts the pneumatic regulating valve and electromagnetic flow meter on the 5# percolation water pipe 15 to achieve precise addition. When the percolation juice volume (% relative to fiber content) of the bagasse entering the pressing mills 4#, 3#, and 2# is insufficient, the intelligent system 12 for comprehensive and balanced percolation automatically adjusts the pneumatic regulating valve and electromagnetic flow meter to supplement the percolation water. Regarding juice return control, the juice pressed from 1# press 1 enters the corresponding 1# juice tank of 1# press 1, and the output bagasse is transported as bagasse entering the pressing mill to the high-level tank of 2# press 2. The juice pressed from 2# press 2 enters the corresponding 2# juice tank, and the bagasse output from 2# press 2 is transported as bagasse entering the pressing mill to the high-level tank of 3# press 3, and so on. The sugarcane juice is successively pressed into presses 3#, 4#, and 5#. The juice extracted from presses 3#, 4#, and 5# enters the corresponding juice tanks 3#, 4#, and 5#. The juice from the juice tanks 5#, 4#, and 3# is pumped back to the bagasse (i.e., bagasse 3#, bagasse 2#, and bagasse 1#) of presses 4#, 3#, and 2# for infiltration. The juice from the juice tanks 1# and 2# is combined into a mixed juice, filtered through a drum screen, pre-ashed, and then pumped to the clarification process. The bagasse output from presses 1# to 4# enters the next press as bagasse. The bagasse output from the last press, 5#, is transported to the boiler as fuel by a belt conveyor.During the sugarcane pressing process, the high-level tank level gauges HIC1001, HIC1002, HIC1003, HIC1004, and HIC1005 of the #1 to #5 presses are linked to the automatic control system 13 for balanced feeding and the intelligent system 12 for balanced permeation, in order to regulate and control the balanced feeding amount of each press. The return of juice from #5, #4, and #3 as permeation juice is specifically divided into two control modes: Mode 1: Pneumatic regulating valves and electromagnetic flow meters are installed on the juice pipelines at the outlets of the #5, #4, and #3 juice tanks. The juice from #5, #4, and #3 is pumped back to the #4, #3, and #2 presses, respectively. 2. The bagasse juice flow rate (% relative to fiber content) is calculated by the intelligent infiltration system 12 based on the weight of the bagasse fibers, fiber content, and set infiltration juice indicators. The system automatically adjusts the pneumatic regulating valves and electromagnetic flow meters on the 5#, 4#, and 3# bagasse juice pipes to achieve precise addition. Mode 2: Electromagnetic flow meters are installed on the bagasse juice pipes at the outlets of the 5#, 4#, and 3# bagasse juice tanks. Return pipes 16 are connected to the outlets of these three tanks. Pneumatic regulating valves are installed on each of the three return pipes 16. Excess bagasse juice is returned to the corresponding 5#, 4#, and 3# bagasse juice tanks via the return pipes 16 and the pneumatic regulating valves. The juice from the #1, #2, and #3 sugarcane juice tanks, and the juice pumps from #5, #4, and #3 back to the #4, #3, and #2 sugarcane juice presses, is used to process the bagasse juice into the pulping drum. The percolation flow rate (% relative to fiber content) is calculated by the intelligent percolation system 12 based on the sugarcane fiber weight, fiber content, and set percolation juice parameters. The system automatically adjusts the pneumatic regulating valve on the return pipe 16 and the electromagnetic flowmeters on the #5, #4, and #3 sugarcane juice pipes to achieve precise addition. Both modes are based on the sugarcane fiber content ratio, with the intelligent percolation system 12 automatically adjusting the percolation juice flow rate. If the level gauge detects a low level in the #5, #4, and #3 sugarcane juice tanks, causing problems in the #4, #3, and #2 sugarcane juice presses... When the amount of sugarcane bagasse juice entering the feed well of press #2 is insufficient, the intelligent system 12 for comprehensive and balanced percolation immediately and synchronously adjusts the pneumatic regulating valves and electromagnetic flow meters on the corresponding feed well branches 18, 19, and 20 of press #4, #3, and #2 to replenish hot water to the bagasse feed well points of presses #4, #3, and #2, maintaining a sufficient and stable total percolation flow (sugarcane juice + water). Simultaneously, the level gauges in the high-level tanks of each press are linked to the automatic control system 13 for balanced feeding, working in conjunction with the intelligent system 12 to adjust the feed distribution from press #1 to press #5, ensuring a balanced load on the pressing line. In summary, this system, through multi-dimensional data fusion, multi-execution unit linkage, and a dual-mode control mechanism, constructs a fully closed-loop intelligent optimization system, significantly improving the sugarcane sugar extraction rate and reducing the intensity of manual intervention.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fully balanced and intelligent infiltration system for sugarcane pressing in a sugar mill, characterized in that: The system includes a No. 1 press (1), a No. 2 press (2), a No. 3 press (3), a No. 4 press (4), a No. 5 press (5), a hot water tank (6), a near-infrared spectroscopy online detection system for sugarcane fibers (10), a sugarcane fiber weight measurement and control system (11), a fully balanced and intelligent pressing system (12), a balanced feeding automatic control system for pressing (13), and a secondary sugarcane belt (7). The secondary sugarcane belt (7) is connected to the high-level trough of the No. 1 press (1). The slag outlet of the No. 1 press (1) is connected to the high-level trough of the No. 2 press (2), the slag outlet of the No. 2 press (2) is connected to the high-level trough of the No. 3 press (3), the slag outlet of the No. 3 press (3) is connected to the high-level trough of the No. 4 press (4), and the slag outlet of the No. 4 press (4) is connected to the high-level trough of the No. 5 press (5) through a rake tooth machine. The secondary sugarcane belt (7) is equipped with a near-infrared spectrometer (8) and a sugarcane fiber weight detector (9).

2. The intelligent system for comprehensive and balanced percolation in a sugarcane mill according to claim 1, characterized in that: The outlet of the hot water tank (6) is connected to a shut-off valve, a hot water pump, and a percolation water main pipe (14). The percolation water main pipe (14) is connected to a 5# percolation water pipe (15) and a supplementary percolation water main pipe (17). The 5# percolation water pipe (15) is connected to the bagasse discharge port of the 4# press (4). The supplementary percolation water main pipe (17) is connected to a 4# supplementary percolation water branch pipe (18), a 3# supplementary percolation water branch pipe (19), and a 2# supplementary percolation water branch pipe (20). The 4# supplementary percolation water branch pipe (18) is connected to the 3# press (3). The bagasse discharge port is connected to the bagasse discharge port of the #3 supplementary permeation water branch pipe (19), which is connected to the bagasse discharge port of the #2 press (2), and the bagasse discharge port of the #2 supplementary permeation water branch pipe (20) is connected to the bagasse discharge port of the #1 press (1). Electromagnetic flow meters and pneumatic regulating valves are installed on the #5 permeation water pipe (15), the #4 supplementary permeation water branch pipe (18), the #3 supplementary permeation water branch pipe (19), and the #2 supplementary permeation water branch pipe (20). The electromagnetic flow meters and pneumatic regulating valves are bidirectionally electrically connected to the intelligent system (12) for comprehensive and balanced permeation during pressing.

3. The intelligent system for comprehensive and balanced percolation in a sugarcane mill according to claim 2, characterized in that: The exterior of each of the five juice tanks (1, 2, 3, 4, and 5) is equipped with a juice tank. The inlets of the five juice tanks are connected to the juice discharge pipes of the respective machines. The five juice tanks are designated as juice tank 1, juice tank 2, juice tank 3, juice tank 4, and juice tank 5. The outlets of all five juice tanks are connected to juice pipes. The juice pipe of the juice tank corresponding to the 5# juice tank is connected to the bagasse discharge port of the 3# juice tank and to the 4# juice tank. 4) The sugarcane juice pipe of the corresponding 4# sugarcane juice tank is connected to the bagasse discharge port of the 2# press (2), the sugarcane juice pipe of the 3# sugarcane juice tank corresponding to the 3# press (3) is connected to the bagasse discharge port of the 1# press (1), the 1# sugarcane juice tank and the 2# sugarcane juice tank corresponding to the 1# press (1) and the 2# press (2) are connected to the mixed juice conveying pipe. Sugarcane juice pumps and gate valves are installed on the outlet pipes of the sugarcane juice tanks and the mixed juice conveying pipes. Electromagnetic flow meters are installed on the sugarcane juice pipes at the outlets of the 3# sugarcane juice tank, 4# sugarcane juice tank and 5# sugarcane juice tank. The electromagnetic flow meters are bidirectionally electrically connected to the intelligent system (12) for full-scale and balanced permeation of the pressing.

4. The intelligent system for comprehensive and balanced percolation in a sugarcane mill according to claim 3, characterized in that: Pneumatic regulating valves are installed on the sugarcane juice pipes at the outlets of the No. 3, No. 4, and No. 5 sugarcane juice tanks. The pneumatic regulating valves are bidirectionally electrically connected to the intelligent system for comprehensive and balanced permeation during pressing (12).

5. The intelligent system for comprehensive and balanced percolation in a sugarcane mill according to claim 4, characterized in that: The juice pipes at the outlets of the juice tanks of the No. 3, No. 4, and No. 5 presses (3, 4, and 5) are all connected to return pipes (16). The three return pipes (16) are respectively connected to the inlets of the corresponding juice tanks of the No. 3, No. 4, and No. 5 presses. Each return pipe (16) is equipped with a pneumatic regulating valve, which is bidirectionally electrically connected to the intelligent system (12) for comprehensive and balanced permeation during pressing.

6. The intelligent system for comprehensive and balanced percolation in a sugarcane mill according to claim 5, characterized in that: The hot water tank (6) and the sides of the No. 3, No. 4, and No. 5 sugarcane juice tanks are equipped with level gauges, which are bidirectionally electrically connected to the intelligent system (12) for comprehensive and balanced permeation during pressing.

7. The intelligent system for comprehensive and balanced percolation in a sugarcane mill according to claim 6, characterized in that: The near-infrared spectrometer (8) is bidirectionally electrically connected to the sugarcane fiber near-infrared spectroscopy online detection system (10), the sugarcane fiber weight detector (9) is bidirectionally electrically connected to the sugarcane fiber weight measurement and control system (11), the intelligent system for full and balanced permeation during pressing (12) is bidirectionally electrically connected to the sugarcane fiber near-infrared spectroscopy online detection system (10), the sugarcane fiber weight measurement and control system (11), and the automatic control system for balanced feeding during pressing (13), respectively. Material level gauges are installed on the high-level tanks of the No. 1 press (1), No. 2 press (2), No. 3 press (3), No. 4 press (4), and No. 5 press (5), and the material level gauges are bidirectionally electrically connected to the automatic control system for balanced feeding during pressing (13).

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