An organic-inorganic separation system for sludge and its control method

Abstract

The present invention discloses a sludge organic-inorganic separation system and its control method. By respectively arranging a measuring unit at the feed inlet of the separation unit and the outlet of the organic sludge, the measuring unit monitors the sludge feed flow rate and the outlet flow rate of the separated organic sludge, and transmits the data to the main control unit through the data transmission unit. The main control unit, based on the real-time transmitted sludge feed rate and the separation working state of the separation unit, timely gives a signal feedback to the regulation unit to regulate the sludge feed rate or the outlet flow rate of the organic sludge outlet, thereby realizing the intelligent monitoring and regulation of the working state of the sludge organic-inorganic separation system, and improving the stability, accuracy and effect of the sludge organic-inorganic separation.

Description

Technical Field

[0001] The present invention belongs to the technical field of sludge treatment and automatic control, and particularly relates to a sludge organic-inorganic separation system and a control method thereof. Background Art

[0002] In recent years, with the continuous improvement of the urbanization level, while the urban sewage discharge has been increasing, the amount of sludge generated in the sewage treatment process has also been increasing. Separating organic sludge before incineration, anaerobic fermentation and other treatments can effectively increase the calorific value of the organic part, reduce the input of costs such as coal co-firing, as well as increase the organic load and production capacity of anaerobic fermentation, and reduce the risk of anaerobic system blockage caused by inorganic sand and gravel in the sludge.

[0003] A hydrocyclone is a device commonly used for separation and classification. The separation effect is not only affected by structural parameters such as the size of the hydrocyclone, but also the pressure during feeding is an important influencing factor, and the feeding pressure directly affects the feeding speed. Generally, it is considered that there is a critical optimal feeding speed when the hydrocyclone performs separation and classification. The separation effect increases with the increase of the feeding speed. After reaching the critical optimal feeding speed, continuing to increase the feeding speed will instead lead to a deterioration of the separation effect.

[0004] During the actual separation operation of the hydrocyclone, due to various factors such as sludge properties, working conditions and hydrocyclone wear, the feeding speed of the sludge will fluctuate to varying degrees, resulting in unstable or poor separation effect of organic and inorganic sludge. In addition, the sludge separation effect is usually judged by calculating relevant indexes after drying and testing. There are problems such as long detection cycle, difficulty in reflecting and regulating the working state of the separation system in real time, and large differences in the separated sludge. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a hydrocyclone working state that realizes intelligent monitoring and regulation of the organic-inorganic separation of sludge, improves the stability, accuracy and effect of the organic-inorganic separation of sludge, aiming at the important influence of the feeding speed of the hydrocyclone on the organic-inorganic separation effect of sludge during the actual operation process of the project, and to solve the problem of the feeding speed fluctuation caused by sludge properties, working conditions and hydrocyclone wear, and the inability to monitor the sludge separation effect in real time and regulate the working state of the separation system.

[0006] To solve the above technical problems, an aspect of the present invention provides a sludge organic-inorganic separation system, which includes a main control unit, a data transmission unit, a regulation unit, a sludge modification unit, a power unit, a measurement unit, a separation unit, and a sludge storage unit; the main control unit is respectively connected to the data transmission unit and the regulation unit; the data transmission unit is connected to the measurement unit; the regulation unit is respectively connected to the sludge modification unit and the power unit; the measurement unit is respectively connected to the separation unit and the sludge storage unit; wherein,

[0007] The measurement unit is used to monitor the sludge feeding speed and flow rate at the feeding port of the separation unit, the organic sludge discharging flow rate at the overflow port of the separation unit, and the sludge liquid level height in the sludge storage unit;

[0008] The data transmission unit is used to transmit the data acquired by the measurement unit to the main control unit;

[0009] The main control unit is used to collect, display, and store the data transmitted by the data transmission unit in real time, and quickly process and judge according to the transmitted data, so as to issue corresponding regulation instructions to the regulation unit in a timely manner;

[0010] The regulation unit includes a control part and an adjustment part. The control part is used to control the start and stop of the power unit and control the sludge modification unit to complete sludge modification; the adjustment part is used to adjust the sludge feeding speed and flow rate at the feeding port of the separation unit and the organic sludge discharging flow rate at the overflow port of the separation unit according to the instructions issued by the main control unit, so as to realize the adjustment of the working state of the sludge organic-inorganic separation system.

[0011] As a preferred solution of the above sludge organic-inorganic separation system, the separation unit is a hydrocyclone, the sludge storage unit includes an inorganic sludge storage tank and an organic sludge storage tank, the feeding port of the separation unit is connected to the sludge modification unit, the discharging port of the separation unit is connected to the inorganic sludge storage tank, and the overflow port of the separation unit is connected to the organic sludge storage tank.

[0012] As a preferred solution of the above sludge organic-inorganic separation system, the sludge modification unit includes a sludge modification tank with a stirrer, the sludge modification tank is provided with a pH monitor, and the sludge modification tank is connected with a dosing device.

[0013] As a preferred solution of the above sludge organic-inorganic separation system, the power unit includes a sludge feeding pump and a sludge pumping pump. The sludge feeding pump is connected to the feeding port of the sludge modification tank, and the discharging port of the sludge modification tank is connected to the feeding port of the hydrocyclone through the sludge pumping pump; the sludge feeding pump is a screw pump.

[0014] As a preferred embodiment of the above sludge organic-inorganic separation system, the adjustment part includes a variable-frequency pump, a reflux device and a regulating valve. The variable-frequency pump is the sludge suction pump of the power unit. The reflux device is connected in parallel with the variable-frequency pump. The regulating valve is connected to the pipeline from the overflow port of the separation unit to the organic sludge storage tank.

[0015] As a preferred embodiment of the above sludge organic-inorganic separation system, the measurement unit includes a first intelligent electromagnetic flowmeter, a second intelligent electromagnetic flowmeter, a first radar level gauge and a second radar level gauge. The first intelligent electromagnetic flowmeter is connected to the pipeline on the side close to the feed port of the separation unit. The second intelligent electromagnetic flowmeter is connected to the pipeline on the side close to the overflow port of the separation unit. The first radar level gauge is connected to the top of the inorganic sludge storage tank. The second radar level gauge is connected to the top of the organic sludge storage tank.

[0016] As a preferred embodiment of the above sludge organic-inorganic separation system, the sludge organic-inorganic separation system further includes an emergency stop unit and an alarm unit respectively connected to the control unit. The emergency stop unit is used to perform an emergency stop when the sludge organic-inorganic separation system fails and the main control unit issues a control command for the second time but still cannot meet the predetermined feed rate and separation flow range of the sludge organic-inorganic separation system. The alarm unit is used to give an alarm prompt after a failure and an emergency stop occur.

[0017] As a preferred embodiment of the above sludge organic-inorganic separation system, the sludge organic-inorganic separation system further includes a cleaning unit connected to the control unit. The cleaning unit is arranged at the front end of the whole sludge organic-inorganic separation system. The cleaning unit is connected to tap water. The control unit can control the cleaning unit to clean the whole sludge organic-inorganic separation system according to the actual working operation requirements.

[0018] Another aspect of the present invention provides a control method for the sludge organic-inorganic separation system according to the above various contents, which includes:

[0019] Monitoring the sludge feed rate and flow at the feed port of the separation unit, the organic sludge discharge flow at the overflow port of the separation unit, and the sludge level height in the sludge storage unit through the measurement unit;

[0020] Transmitting the data obtained by the measurement unit to the main control unit through the data transmission unit;

[0021] The main control unit collects, displays, and stores the data transmitted by the data transmission unit in real time, and quickly processes and judges the transmitted data to issue corresponding control instructions to the regulation unit in a timely manner. Among them, the parameter ranges set in the main control unit include: the sludge critical feeding speed range V1 - V2 determined during the commissioning stage of the sludge organic-inorganic separation system, the sludge flow rate range Q1 - Q2 at the sludge critical feeding speed, the organic sludge discharge flow rate range Q3 - Q4 at the overflow port after separation, and the ratio K1 - K2 of the separated organic sludge to inorganic sludge determined through laboratory tests.

[0022] When the sludge feeding speed V < V1, the regulation unit increases the sludge feeding speed into the separation unit.

[0023] When the sludge feeding speed V < V1 and, after the regulation unit increases the sludge feeding speed into the separation unit, the set sludge critical feeding speed range still cannot be reached, the signal is transmitted to the main control unit, and the main control unit issues a control instruction again. If the set sludge critical feeding speed range still cannot be reached, an alarm is sent to the user to prompt checking the sludge volume and malfunction problems in the sludge modification tank.

[0024] When the sludge feeding speed V > V2, the regulation unit decreases the sludge feeding speed into the separation unit.

[0025] When the organic sludge discharge flow rate Q at the overflow port after separation < Q3 and the inorganic sludge discharge flow rate at the grit chamber Q1 - Q > Q, the regulation unit decreases the sludge feeding speed into the separation unit.

[0026] When the organic sludge discharge flow rate Q at the overflow port after separation > Q4 and the inorganic sludge discharge flow rate at the grit chamber Q2 - Q < Q, the regulation unit increases the sludge feeding speed into the separation unit and reduces the organic sludge discharge flow rate at the overflow port.

[0027] As an optimized solution of the above control method, the data transmission unit transmits the data measured by the measuring unit of the sludge organic-inorganic separation system per minute to the main control unit for recording in real time. According to Calculate the actual separation ratio of organic and inorganic sludge in the sludge, and detect the actual operation effect of the sludge organic-inorganic separation.

[0028] When the actual separation ratio K of organic and inorganic sludge in the sludge < K1, it indicates that the discharged amount of organic sludge after separation is excessive.

[0029] When the actual separation ratio K of organic and inorganic sludge in the sludge > K2, it indicates that the discharged amount of inorganic sludge after separation is excessive.

[0030] On the premise that both the sludge feeding speed at the feeding port of the separation unit and the discharge flow rate of the organic sludge at the overflow port after separation meet the set ranges, if the actual separation ratio of organic and inorganic sludge still does not conform to the range of the ratio of organic sludge to inorganic sludge determined in the laboratory after separation, it is necessary to re-adjust and determine the critical sludge feeding speed range.

[0031] Implementing a system for separating organic and inorganic sludge and its control method provided by the present invention, compared with the prior art, its beneficial effects are as follows:

[0032] The present invention can monitor in real time the sludge feeding speed and flow rate at the feeding port of the separation unit, as well as the discharge flow rate of the organic sludge at the overflow port of the separation unit, and combine and compare with the data determined by debugging and laboratory results, providing a theoretical basis for regulating the separation effect of organic sludge. It can quickly make adjustments according to different working states of the system, effectively improving the stability and accuracy of the separation of organic and inorganic sludge. In addition, the equipment and facilities adopted by the present invention are simple, easy to operate and maintain, have a high degree of automation, and have a good promotion basis for the wide application of the separation and treatment of organic and inorganic sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly introduced below.

[0034] Figure 1 is a block diagram of a system for separating organic and inorganic sludge provided by the present invention;

[0035] Figure 2 is a schematic structural diagram of a system for separating organic and inorganic sludge provided by the present invention;

[0036] Figure 3 is a control flow chart of a system for separating organic and inorganic sludge provided by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] The following combines the accompanying drawings and embodiments to further describe in detail the specific embodiments of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present invention. It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information.

[0039] As Figure 1 and Figure 2 shown, a preferred embodiment of the present invention provides a sludge organic-inorganic separation system, which includes a main control unit 10, a data transmission unit 20, a regulation unit 30, a sludge modification unit 40, a power unit 50, a measurement unit 60, a separation unit 70, and a sludge storage unit 80; the main control unit 10 is respectively connected to the data transmission unit 20 and the regulation unit 30; the data transmission unit 20 is connected to the measurement unit 60; the regulation unit 30 is respectively connected to the sludge modification unit 40 and the power unit 50; the measurement unit 60 is respectively connected to the separation unit 70 and the sludge storage unit 80; wherein,

[0040] the measurement unit 60 is used to monitor the sludge feeding speed and flow rate at the feeding port 703 of the separation unit 70, the organic sludge discharging flow rate at the overflow port 702 of the separation unit 70, and the sludge liquid level height in the sludge storage unit 80;

[0041] the data transmission unit 20 is used to transmit the data obtained by the measurement unit 60 to the main control unit 10;

[0042] the main control unit 10 is used to collect, display, and store the data transmitted by the data transmission unit 20 in real time, and quickly process and judge according to the transmitted data, and issue corresponding regulation instructions to the regulation unit 30 in a timely manner;

[0043] The control unit 30 includes a control part and an adjustment part. The control part is used to control the start and stop of the power unit 50 and control the sludge modification unit 40 to complete sludge modification. The adjustment part is used to adjust the sludge feeding speed and flow rate of the feed port 703 of the separation unit 70 and the organic sludge discharge flow rate of the overflow port 702 of the separation unit 70 according to the instructions issued by the main control unit 10, so as to adjust the working state of the sludge organic-inorganic separation system.

[0044] Exemplarily, the separation unit 70 is a hydrocyclone 701. The sludge storage unit 80 includes an inorganic sludge storage tank 801 and an organic sludge storage tank 802. The feed port 703 of the separation unit 70 is connected to the sludge modification unit 40. The discharge port of the separation unit 70 is connected to the inorganic sludge storage tank 801. The overflow port 702 of the separation unit 70 is connected to the organic sludge storage tank 802.

[0045] Exemplarily, the sludge modification unit 40 includes a sludge modification tank 401 with a stirrer 402. The sludge modification tank 401 is provided with a pH monitor. The sludge modification tank 401 is connected with a chemical dosing device. Thus, in the sludge modification stage, a modification reagent is added into the sludge modification tank 401 through the chemical dosing device to destroy the EPS of the sludge, reduce the viscosity of the sludge, and effectively release the inorganic sand and gravel wrapped by the extracellular polymer. The sludge is stirred by the stirrer 402 to release the inorganic sand and gravel between the sludge to the greatest extent, and improve the degree of subsequent sludge organic-inorganic separation. Among them, the pH monitor is used to monitor the reaction conditions after the addition of the sludge modifier.

[0046] Exemplarily, the power unit 50 includes a sludge feed pump 501 and a sludge extraction pump 502. The sludge feed pump 501 is connected to the feed port of the sludge modification tank 401, and the sludge feed pump 501 provides the conveying power for feeding into the sludge modification tank 401. The discharge port of the sludge modification tank 401 is connected to the feed port of the hydrocyclone 701 through the sludge extraction pump 502, and the sludge extraction pump 502 provides the conveying power for feeding into the hydrocyclone 701. In this embodiment, the sludge feed pump 501 is preferably a screw pump.

[0047] Exemplarily, the adjustment part includes a variable frequency pump 301, a reflux device 302 and a regulating valve 303. The variable frequency pump 301 is the sludge extraction pump 502 of the power unit 50. The reflux device 302 is connected in parallel with the variable frequency pump 301. The regulating valve 303 is connected to the pipeline where the overflow port 702 of the separation unit 70 leads to the organic sludge storage tank 802. Among them, the variable frequency pump 301 and the reflux device 302 are used to regulate the feeding speed of the sludge entering the separation unit 70 (i.e., the hydrocyclone 701), and the regulating valve 303 is used to regulate the organic sludge discharge flow rate of the overflow port 702 after sludge separation.

[0048] Exemplarily, the measurement unit 60 includes a first intelligent electromagnetic flowmeter 601, a second intelligent electromagnetic flowmeter 602, a first radar level gauge 603, and a second radar level gauge 604. The first intelligent electromagnetic flowmeter 601 is connected to the pipeline on the side close to the feed port 703 of the separation unit 70. The second intelligent electromagnetic flowmeter 602 is connected to the pipeline on the side close to the overflow port 702 of the separation unit 70. The first radar level gauge 603 is connected to the top of the inorganic sludge storage tank 801. The second radar level gauge 604 is connected to the top of the organic sludge storage tank 802. Among them, the first intelligent electromagnetic flowmeter 601 is used to monitor the feeding speed and flow rate of sludge entering the separation unit 70 (i.e., the hydrocyclone 701); the second intelligent electromagnetic flowmeter 602 is used to monitor the discharge flow rate of organic sludge at the overflow port 702 after sludge separation; the first radar level gauge 603 is used to monitor the sludge level height in the inorganic sludge storage tank 801 and transmit it to the main control unit 10 for display and recording in real time; the second radar level gauge 604 is used to monitor the sludge level height in the organic sludge storage tank 802 and transmit it to the main control unit 10 for display and recording in real time.

[0049] Exemplarily, the sludge organic-inorganic separation system further includes an emergency stop unit 110. The emergency stop unit 110 is connected to the regulation unit 30. The emergency stop unit 110 is used for emergency stop when a failure occurs in the sludge organic-inorganic separation system and the main control unit 10 issues a regulation instruction for the second time but still cannot meet the working predetermined feeding speed and separation flow rate range of the sludge organic-inorganic separation system.

[0050] Exemplarily, the sludge organic-inorganic separation system further includes an alarm unit 100. The alarm unit 100 is connected to the regulation unit 30. The alarm unit 100 is used for alarm prompts after a failure and an emergency stop.

[0051] Exemplarily, the sludge organic-inorganic separation system further includes a cleaning unit 90. The cleaning unit 90 is connected to the regulation unit 30. The cleaning unit 90 is arranged at the front end of the whole sludge organic-inorganic separation system. The cleaning unit 90 is connected to tap water and controls the water inlet according to the actual working operation requirements to clean the residual sludge in the sludge organic-inorganic separation system to prevent and solve the problem of pipeline blockage.

[0052] As Figures 1 to 3 shown, based on the above sludge organic-inorganic separation system, the present invention further provides a control method for a sludge organic-inorganic separation system, which includes:

[0053] The sludge feeding speed and flow rate at the feed inlet 703 of the separation unit 70, the organic sludge discharge flow rate at the overflow outlet 702 of the separation unit 70, and the sludge liquid level height in the sludge storage unit 80 are monitored by the measuring unit 60;

[0054] The data obtained by the measuring unit 60 is transmitted to the main control unit 10 through the data transmission unit 20;

[0055] The main control unit 10 collects, displays, and stores the data transmitted by the data transmission unit 20 in real time, and quickly processes and judges the transmitted data to issue corresponding control instructions to the control unit 30 in a timely manner; among them, the parameter ranges set in the main control unit 10 include: the sludge critical feeding speed range V1 - V2 determined during the commissioning stage of the sludge organic-inorganic separation system, the sludge flow rate range Q1 - Q2 at the sludge critical feeding speed, the organic sludge discharge flow rate range Q3 - Q4 at the overflow outlet 702 after separation, and the ratio K1 - K2 of the separated organic sludge to inorganic sludge determined through the laboratory;

[0056] When the sludge feeding speed V < V1, it indicates that the sludge feeding speed is too small, and it is necessary to increase the sludge feeding speed into the separation unit 70 through the control unit 30, that is, increase the frequency of the variable frequency pump 301 to increase the sludge feeding speed;

[0057] When the sludge feeding speed V < V1, and after increasing the sludge feeding speed into the separation unit 70 through the control unit 30, if the set sludge critical feeding speed range still cannot be reached, the signal is transmitted to the main control unit 10, and the main control unit 10 issues a control instruction again. If the set sludge critical feeding speed range still cannot be reached, it indicates that there is insufficient sludge in the sludge modification tank 401, or there is a pipeline blockage fault in the sludge organic-inorganic separation system, and an alarm is sent to the user to prompt to check the sludge volume in the sludge modification tank 401 and the fault problem;

[0058] When the sludge feeding speed V > V2, it indicates that the sludge feeding speed is too large, and it is necessary to reduce the sludge feeding speed into the separation unit 70 through the control unit 30, that is, reduce the sludge feeding speed through the frequency modulation of the variable frequency pump 301 and the reflux device 302;

[0059] When the organic sludge discharge flow rate Q at the overflow outlet 702 after separation < Q3, and the inorganic sludge grit outlet discharge flow rate Q1 - Q > Q, it indicates that the sludge feeding speed is too large, and the light component organic sludge obtains a larger centrifugal force in the separation unit 70 (i.e., the hydrocyclone 701), so that more organic sludge is discharged from the grit outlet at the lower end of the separation unit 70 (i.e., the hydrocyclone 701). Therefore, it is necessary to reduce the sludge feeding speed into the separation unit 70 through the control unit 30, that is, reduce the sludge feeding speed through the frequency modulation of the variable frequency pump 301 and the reflux device 302;

[0060] When the discharge flow rate Q of the organic sludge at the overflow port 702 after separation > Q4, and the discharge flow rate of the inorganic sludge at the grit chamber outlet Q2 - Q < Q, it indicates that the sludge feeding speed is too small. The centrifugal force obtained by the heavy-component organic sludge in the separation unit 70 (i.e., the hydrocyclone 701) is small, and it is difficult for some large inorganic gravel particles to be swirled out from the grit chamber, resulting in the blockage of inorganic gravel in the separation unit 70 (i.e., the hydrocyclone 701). More inorganic sludge is discharged from the upper overflow port 702 of the separation unit 70 (i.e., the hydrocyclone 701). Therefore, it is necessary to increase the sludge feeding speed into the separation unit 70 and reduce the discharge flow rate of the organic sludge at the overflow port 702 through the control unit 30, that is, increase the frequency of the variable-frequency pump 301 to increase the sludge feeding speed, and reduce the opening degree of the regulating valve 303, so as to reduce the discharge flow rate of the organic sludge at the overflow port 702, increase the swirl pressure in the separation unit 70 (i.e., the hydrocyclone 701), and improve the accuracy of the organic-inorganic sludge separation.

[0061] Furthermore, the data measured by the measuring unit 60 of the organic-inorganic sludge separation system per minute is transmitted to the main control unit 10 in real time through the data transmission unit 20 for recording. According to calculate the actual organic-inorganic separation ratio of the sludge and detect the actual organic-inorganic separation effect of the sludge during operation;

[0062] When the actual organic-inorganic separation ratio K of the sludge < K1, it indicates that the discharge amount of the organic sludge after separation is too much;

[0063] When the actual organic-inorganic separation ratio K of the sludge > K2, it indicates that the discharge amount of the inorganic sludge after separation is too much;

[0064] On the premise that both the sludge feeding speed and the discharge flow rate of the organic sludge at the overflow port 702 after separation meet the set range, if the actual organic-inorganic separation ratio of the sludge still does not meet the ratio range of the organic sludge and inorganic sludge determined in the laboratory after separation, it is necessary to re-adjust and determine the critical sludge feeding speed range.

[0065] The above is only the preferred implementation mode of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present invention, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A control method for an organic-inorganic separation system of sludge, characterized in that, The sludge organic-inorganic separation system includes a main control unit, a data transmission unit, a regulation unit, a sludge modification unit, a power unit, a measurement unit, a separation unit, a sludge storage unit, a cleaning unit, an alarm unit, and an emergency stop unit; the main control unit is respectively connected to the data transmission unit and the regulation unit; the data transmission unit is connected to the measurement unit; the regulation unit is respectively connected to the sludge modification unit, the power unit, the cleaning unit, the emergency stop unit, and the alarm unit; the measurement unit is respectively connected to the separation unit and the sludge storage unit; the regulation unit includes a control part and an adjustment part, the control part is used to control the start and stop of the power unit and control the sludge modification unit to complete sludge modification; the adjustment part is used to adjust the sludge feeding speed and flow rate at the feed port of the separation unit and the organic sludge discharge flow rate at the overflow port of the separation unit according to the instructions issued by the main control unit, so as to realize the adjustment of the working state of the sludge organic-inorganic separation system; the regulation unit can also control the cleaning unit to clean the entire sludge organic-inorganic separation system according to the actual working operation requirements; The separation unit is a hydrocyclone, the sludge storage unit includes an inorganic sludge storage tank and an organic sludge storage tank, the feed port of the separation unit is connected to the sludge modification unit, the discharge port of the separation unit is connected to the inorganic sludge storage tank, and the overflow port of the separation unit is connected to the organic sludge storage tank; The control method of the sludge organic-inorganic separation system includes: Monitoring the sludge feeding speed and flow rate at the feed port of the separation unit, the organic sludge discharge flow rate at the overflow port of the separation unit, and the sludge liquid level height in the sludge storage unit through the measurement unit; Transmitting the data obtained by the measurement unit to the main control unit through the data transmission unit; The main control unit collects, displays, and stores the data transmitted by the data transmission unit in real time, and quickly processes and judges according to the transmitted data, and issues corresponding regulation instructions to the regulation unit in a timely manner; among them, the parameter ranges set in the main control unit include: the sludge critical feeding speed range V1-V2 determined during the commissioning stage of the sludge organic-inorganic separation system, the sludge flow rate range Q1-Q2 at the sludge critical feeding speed, the organic sludge discharge flow rate range Q3-Q4 at the overflow port after separation, and the ratio K1-K2 of the separated organic sludge to inorganic sludge determined through the laboratory; When the sludge feeding speed V<V1, the regulation unit increases the sludge feeding speed into the separation unit; When the sludge feeding speed V<V1, and after the regulation unit increases the sludge feeding speed into the separation unit, if the set sludge critical feeding speed range still cannot be reached, the signal is transmitted to the main control unit, and the main control unit issues a regulation instruction again. If the set sludge critical feeding speed range still cannot be reached, an alarm is sent to the user to prompt to check the sludge volume and fault problems in the sludge modification tank; When the sludge feeding speed V>V2, the regulation unit reduces the sludge feeding speed into the separation unit; When the discharge flow rate Q of the organic sludge at the overflow port after separation is less than Q3, and the discharge flow rate Q1 - Q of the inorganic sludge at the grit chamber outlet is greater than Q, the feeding speed of the sludge into the separation unit is reduced through the control unit; When the discharge flow rate Q of the organic sludge at the overflow port after separation is greater than Q4, and the discharge flow rate Q2 - Q of the inorganic sludge at the grit chamber outlet is less than Q, the feeding speed of the sludge into the separation unit is increased through the control unit and the discharge flow rate of the organic sludge at the overflow port is reduced.

2. The control method of the sludge organic-inorganic separation system according to claim 1, wherein The data measured by the measurement unit of the sludge organic-inorganic separation system per minute is transmitted to the main control unit for recording in real time through the data transmission unit. According to the actual separation ratio of sludge organic matter and inorganic matter is calculated to detect the actual operation effect of sludge organic-inorganic separation; When the actual organic-inorganic separation ratio K of the sludge is less than K1, it indicates that the discharge amount of the organic sludge after separation is excessive; When the actual organic-inorganic separation ratio K of the sludge is greater than K2, it indicates that the discharge amount of the inorganic sludge after separation is excessive; On the premise that both the sludge feeding speed and the discharge flow rate of the organic sludge at the overflow port after separation meet the set range, if the actual organic-inorganic separation ratio of the sludge still does not conform to the ratio range of the organic sludge and inorganic sludge after separation determined in the laboratory, it is necessary to re-adjust and determine the critical sludge feeding speed range.

3. The control method of the sludge organic-inorganic separation system according to claim 1, characterized in that, The sludge modification unit includes a sludge modification tank with a stirrer, the sludge modification tank is provided with a pH monitor, and the sludge modification tank is connected with a dosing device.

4. The control method of the sludge organic-inorganic separation system according to claim 3, characterized in that, The power unit includes a sludge feeding pump and a sludge pumping pump. The sludge feeding pump is connected to the feeding port of the sludge modification tank, and the discharge port of the sludge modification tank is connected to the feeding port of the hydrocyclone through the sludge pumping pump; the sludge feeding pump is a screw pump.

5. The control method of the sludge organic-inorganic separation system according to claim 4, characterized in that, The adjustment part includes a variable frequency pump, a reflux device and a regulating valve. The variable frequency pump is the sludge pumping pump of the power unit. The reflux device is connected in parallel with the variable frequency pump. The regulating valve is connected to the pipeline from the overflow port of the separation unit to the organic sludge storage tank.

6. The control method of the sludge organic-inorganic separation system according to claim 1, characterized in that The measuring unit includes a first intelligent electromagnetic flowmeter, a second intelligent electromagnetic flowmeter, a first radar level gauge and a second radar level gauge. The first intelligent electromagnetic flowmeter is connected to the pipeline on the side close to the feeding port of the separation unit. The second intelligent electromagnetic flowmeter is connected to the pipeline on the side close to the overflow port of the separation unit. The first radar level gauge is connected to the top of the inorganic sludge storage tank, and the second radar level gauge is connected to the top of the organic sludge storage tank.

7. The control method of the sludge organic-inorganic separation system according to claim 1, wherein The emergency stop unit is used for emergency stop when the sludge organic-inorganic separation system fails and the main control unit issues a control instruction for the second time but still cannot meet the working predetermined feeding speed and separation flow rate range of the sludge organic-inorganic separation system; the alarm unit is used for alarm prompts after a failure and an emergency stop.

8. The control method of the sludge organic-inorganic separation system according to claim 1, wherein The cleaning unit is arranged at the front end of the whole sludge organic-inorganic separation system, and the cleaning unit is connected to tap water.

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