Hydraulic monitoring control system suitable for environment-friendly lime shaft kiln

Abstract

The invention belongs to the technical field of lime shaft kiln management and control, and particularly relates to a hydraulic monitoring control system suitable for an environment-friendly lime shaft kiln, which comprises a hydraulic loading control unit, a power source monitoring unit, a hydraulic cylinder motion monitoring unit, a real-time alarm unit and a remote control supervision end, a hydraulic pump station is used as a power source through the hydraulic loading control unit, and a hydraulic cylinder is accurately controlled by combining control elements such as a three-position four-way electromagnetic directional valve, an overflow valve, a one-way valve and a proportional pressure reducing valve; a power source monitoring unit, a hydraulic cylinder movement monitoring unit and a control element evaluation unit are used for effectively monitoring a power source, a hydraulic cylinder piston rod and a control element and performing abnormal early warning so as to remind a manager to take targeted improvement treatment measures in time, so that the supervision difficulty of the manager is remarkably reduced; hydraulic monitoring and control of the lime shaft kiln are achieved, and the intelligent degree is high.

Description

Technical Field

[0001] The present invention relates to the technical field of lime shaft kiln control, and specifically to a hydraulic monitoring and control system applicable to an environment-friendly lime shaft kiln. Background Art

[0002] The parallel flow regenerative double-shaft kiln is a key equipment for modern lime production. Most of the equipment on the parallel flow regenerative double-shaft kiln adopts hydraulic operation. The stable operation of the hydraulic system is the key to realizing the automatic control of the parallel flow regenerative double-shaft kiln. The hydraulic system of the lime shaft kiln is a transmission method that transfers energy with liquid as the working medium. The motor rotates to drive the hydraulic pump to rotate, converting mechanical energy into the pressure energy of hydraulic oil. The solenoid valve changes direction to convert the pressure energy of hydraulic oil into mechanical energy, so that the cylinder body moves to meet the production requirements. However, currently, when monitoring and controlling the hydraulic system of the lime shaft kiln, there are deficiencies in pressure control and dynamic loading, and it is difficult to effectively monitor the operating conditions of the power source, hydraulic cylinder, and control components and achieve reasonable judgment and early warning of abnormalities. This is not conducive to the management personnel to make targeted improvement measures in a timely manner, cannot effectively reduce the supervision difficulty of the management personnel, and has a low degree of intelligence. In view of the above technical defects, a solution is proposed now. Summary of the Invention

[0003] The purpose of the present invention is to provide a hydraulic monitoring and control system applicable to an environment-friendly lime shaft kiln, which solves the problems that there are deficiencies in pressure control and dynamic loading when the existing technology monitors and controls the hydraulic system of the lime shaft kiln, and it is difficult to effectively monitor the operating conditions of the power source, hydraulic cylinder, and control components and achieve reasonable judgment and early warning of abnormalities, with a large supervision difficulty and a low degree of intelligence.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: A hydraulic monitoring and control system applicable to an environment-friendly lime shaft kiln includes a hydraulic loading control unit, a power source monitoring unit, a hydraulic cylinder movement monitoring unit, a real-time alarm unit, and a remote control and supervision terminal; the hydraulic loading control unit uses a hydraulic pump station as the power source, combines control components including a three-position four-way solenoid directional valve, an overflow valve, a check valve, and a proportional pressure reducing valve to precisely control the hydraulic cylinder, and adjusts the pressure through the proportional pressure reducing valve to meet the pressure requirements under different working conditions of the lime shaft kiln. Moreover, an accumulator is introduced at the outlet of the hydraulic pump station to buffer the pressure pulsation and reduce the energy consumption. The power source monitoring unit monitors and analyzes the power source, and judges whether a power source warning signal is generated through analysis. When the power source warning signal is generated, it is sent to the real-time alarm unit; the hydraulic cylinder movement monitoring unit monitors and analyzes the movement state of the piston rod of the hydraulic cylinder, and judges whether a hydraulic movement warning signal is generated through analysis. When the hydraulic movement warning signal is generated, it is sent to the real-time alarm unit; when the real-time alarm unit receives the power source warning signal or the hydraulic movement warning signal, it triggers the alarm mechanism, generates the corresponding alarm information and transmits it to the remote control and supervision terminal, and the remote control and supervision terminal displays the alarm information and issues a warning.

[0005] Further, the power source monitoring unit includes a fuel tank liquid level detection module, a working medium detection module and a pump body operation detection module. The fuel tank liquid level detection module monitors the liquid level of the hydraulic oil in the fuel tank of the hydraulic pump station. When the liquid level is lower than the preset liquid level threshold, the liquid level judgment symbol YP-1 is assigned; The working medium detection module detects and comprehensively analyzes the condition of the hydraulic oil, and judges whether to assign the medium judgment symbol YP-2 through analysis; the pump body operation detection module conducts operation detection and analysis on the hydraulic pump of the hydraulic pump station, and judges whether to assign the pump body judgment symbol YP-3 through analysis; when the liquid level judgment symbol YP-1, the medium judgment symbol YP-2 or the pump body judgment symbol YP-3 is assigned, a power source warning signal is generated.

[0006] Further, the specific analysis process of the working medium detection module is as follows: The temperature of the hydraulic oil is collected, the difference between the temperature and the median of the preset suitable hydraulic oil temperature range is calculated and the absolute value is taken to obtain the hydraulic oil temperature risk value, and the content of solid particles and the content of bubbles in the hydraulic oil are collected and marked as the hydraulic oil particle content value and the hydraulic oil gas content value respectively; The hydraulic oil detection value is obtained by performing numerical calculations on the hydraulic oil temperature risk value, the hydraulic oil particle content value and the hydraulic oil gas content value. The hydraulic oil detection value is numerically compared with the preset hydraulic oil detection threshold. If the hydraulic oil detection value exceeds the preset hydraulic oil detection threshold, the medium judgment symbol YP-2 is assigned.

[0007] Further, the specific analysis process of the pump body operation detection module is as follows: The pressure value and the flow value output by the hydraulic pump in the hydraulic pump station are collected, and are respectively marked as the pump pressure detection value and the pump flow detection value. The pump pressure detection value and the pump flow detection value are numerically compared with the preset pump pressure detection value range and the preset pump flow detection value range respectively. If the pump pressure detection value or the pump flow detection value is not within the corresponding preset range, the pump body judgment symbol YP-3 is assigned; If both the detected pump pressure value and the detected pump flow rate value are within the corresponding preset ranges, the operating speed and operating torque of the hydraulic pump are collected. The deviation value of the operating speed from the set standard speed is marked as the pump speed deviation value, and the deviation value of the operating torque from the set standard torque is marked as the pump torque deviation value. Additionally, the vibration amplitude value and the noise decibel value generated during the operation of the hydraulic pump are collected and marked as the pump vibration characteristic value and the pump noise characteristic value respectively; By performing numerical calculations on the pump speed deviation value, the pump torque deviation value, the pump vibration characteristic value, and the pump noise characteristic value, a pump body operation value is obtained. The pump body operation value is numerically compared with a preset pump body operation threshold value. If the pump body operation value exceeds the preset pump body operation threshold value, the pump body is assigned a judgment symbol YP-3.

[0008] Furthermore, the specific analysis process of the hydraulic cylinder motion monitoring unit is as follows: By installing a displacement sensor on the piston rod of the hydraulic cylinder to monitor the displacement change of the piston rod, the displacement range of the piston rod is collected. The displacement range of the piston rod is compared with the set standard range, and based on this, the upper displacement deviation value and the lower displacement deviation value are obtained. The upper displacement deviation value and the lower displacement deviation value are numerically compared with the preset upper displacement deviation threshold value and the preset lower displacement deviation threshold value respectively. If the upper displacement deviation value or the lower displacement deviation value exceeds the corresponding preset threshold value, a hydraulic motion warning signal is generated.

[0009] Furthermore, if both the upper displacement deviation value and the lower displacement deviation value do not exceed the corresponding preset threshold values, the motion speed curve of the hydraulic cylinder within a unit time is obtained. A number of detection points are marked on the motion speed curve, and the time interval between adjacent two detection points is the same; By calculating the variance of the speeds of all detection points, a hydraulic cylinder speed wave value is obtained. The hydraulic cylinder speed wave value is numerically compared with a preset hydraulic cylinder speed wave threshold value. If the hydraulic cylinder speed wave value exceeds the preset hydraulic cylinder speed wave threshold value, a hydraulic motion warning signal is generated; If the hydraulic cylinder speed wave value does not exceed the preset hydraulic cylinder speed wave threshold value, the speeds of all detection points are averaged to obtain a hydraulic cylinder speed measurement value. The difference between the hydraulic cylinder speed measurement value and the median of the preset hydraulic cylinder speed measurement value range is calculated and the absolute value is taken to obtain a hydraulic cylinder speed deviation value. Additionally, the ratio of the number of detection points whose speeds are not within the preset hydraulic cylinder speed measurement value range is marked as the hydraulic cylinder speed anomaly value, and the maximum deviation amplitude of the speed within a unit time from the preset hydraulic cylinder speed measurement value range is marked as the hydraulic cylinder speed amplitude value; By performing numerical calculations on the hydraulic cylinder speed deviation value, the hydraulic cylinder speed anomaly value, and the hydraulic cylinder speed amplitude value, a hydraulic cylinder operation risk coefficient is obtained. The hydraulic cylinder operation risk coefficient is numerically compared with a preset hydraulic cylinder operation risk coefficient threshold value. If the hydraulic cylinder operation risk coefficient exceeds the preset hydraulic cylinder operation risk coefficient threshold value, a hydraulic motion warning signal is generated.

[0010] Furthermore, the real-time alarm unit is communicatively connected to the control element evaluation unit. The control element evaluation unit performs performance evaluation and analysis on the control elements in the hydraulic loading control unit, and determines whether to generate a control risk signal through analysis. When a control risk signal is generated, it is sent to the real-time alarm unit. When the real-time alarm unit receives the control risk signal, it triggers the alarm mechanism, generates corresponding alarm information, and transmits it to the remote monitoring end. The remote monitoring end displays the alarm information and issues a warning.

[0011] Furthermore, the specific analysis process of the control element evaluation unit is as follows: All control elements in the hydraulic loading control unit are obtained, including three-position four-way electromagnetic directional valves, overflow valves, check valves, and proportional pressure reducing valves. The corresponding control elements are marked as i, and i is a natural number greater than 1. The current operating state information of control element i is collected, and based on the operating state information, it is determined in real time whether the current operating state of control element i meets the requirements. If the corresponding state does not meet the requirements, it is determined that control element i is in a control abnormal state. The number of times that control element i is determined to be in a control abnormal state during the detection period is obtained and marked as the control abnormal frequency value. When control element i receives the corresponding control instruction, the delay duration of its response is collected and marked as the instruction execution delay duration. The average value of all instruction execution delay durations during the detection period is calculated to obtain the instruction execution efficiency value, and the ratio of the number of instruction execution delay durations exceeding the corresponding preset instruction execution delay duration threshold during the detection period is marked as the instruction execution risk value. The component alarm coefficient is obtained through numerical calculation of the control abnormal frequency value, the instruction execution efficiency value, and the instruction execution risk value. The component alarm coefficient is numerically compared with the corresponding preset component alarm coefficient threshold. If the component alarm coefficient exceeds the corresponding preset component alarm coefficient threshold, control element i is marked as a defective control component. If there are defective control components, a control risk signal is generated.

[0012] Furthermore, if there are no defective control components, the ratio of the component alarm coefficient of control element i to the corresponding preset component alarm coefficient threshold is calculated to obtain the component alarm ratio value. The average value of the component alarm ratio values of all control elements is calculated to obtain the control evaluation coefficient. The control evaluation coefficient is numerically compared with the preset control evaluation coefficient threshold. If the control evaluation coefficient exceeds the preset control evaluation coefficient threshold, a control risk signal is generated.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. In the present invention, the hydraulic cylinder is precisely controlled by the hydraulic loading control unit. The power source monitoring unit monitors and analyzes the power source to determine whether a power source warning signal is generated. The hydraulic cylinder movement monitoring unit monitors and analyzes the movement state of the piston rod of the hydraulic cylinder to determine whether a hydraulic movement warning signal is generated. When a power source warning signal or a hydraulic movement warning signal is generated, the management personnel are reminded to quickly conduct a cause investigation and analysis and take targeted improvement measures, significantly reducing the supervision difficulty of the management personnel. 2. In the present invention, the control element evaluation unit evaluates and analyzes the performance of the control elements in the hydraulic loading control unit to determine whether a control risk signal is generated. When a control risk signal is generated, the management personnel are reminded to check and regulate the corresponding control elements and strengthen the operation supervision of the control elements, reducing the subsequent control risk, with a high degree of intelligence and further reducing the supervision difficulty of the management personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] For the convenience of those skilled in the art to understand, the present invention will be further described below with reference to the accompanying drawings. Figure 1 It is the system block diagram of the first embodiment in the present invention. Figure 2 It is the system block diagram of the second embodiment in the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0016] Embodiment 1: As Figure 1 shown, the hydraulic monitoring and control system applicable to the environmental protection type lime shaft kiln proposed by the present invention includes a hydraulic loading control unit, a power source monitoring unit, a hydraulic cylinder movement monitoring unit, a real-time alarm unit, and a remote control and supervision terminal. The hydraulic loading control unit uses a hydraulic pump station as the power source, combines control elements such as a three-position four-way electromagnetic directional valve, an overflow valve, a check valve, and a proportional pressure reducing valve to precisely control the hydraulic cylinder, adjusts the pressure through the proportional pressure reducing valve to meet the pressure requirements under different working conditions of the lime shaft kiln (that is, realizes the dynamic adjustment of the output force to meet the requirements of complex working conditions such as sinusoidal wave loads for the lime shaft kiln), and introduces an accumulator at the outlet of the hydraulic pump station to buffer the pressure pulsation to reduce energy consumption and reduce energy waste.

[0017] The power source monitoring unit monitors and analyzes the power source, and judges whether a power source warning signal is generated through analysis, that is, a power source warning signal is generated when the liquid level judgment symbol YP-1, the medium judgment symbol YP-2, or the pump body judgment symbol YP-3 is given. When the power source warning signal is generated, it is sent to the real-time alarm unit. When the real-time alarm unit receives the power source warning signal, it triggers the alarm mechanism, generates the corresponding alarm information and transmits it to the remote control and supervision terminal; The remote control and supervision terminal displays the alarm information and issues a warning, which can comprehensively monitor and accurately judge the operation safety of the power source and give a timely warning, which is conducive to reminding the management personnel to quickly conduct a cause investigation and analysis and make reasonable control and improvement measures for the power source, significantly reducing the supervision difficulty of the management personnel; It should be noted that the power source monitoring unit includes an oil tank liquid level detection module, a working medium detection module, and a pump body operation detection module. Among them, the oil tank liquid level detection module monitors the hydraulic oil level in the hydraulic pump station oil tank, collects the hydraulic oil level in the oil tank in real time, and compares the hydraulic oil level with the preset liquid level threshold in real time; When the liquid level is lower than the preset liquid level threshold, cavitation is likely to occur when the hydraulic pump sucks oil, causing a series of unsafe factors and failures such as abnormal operation. The liquid level judgment symbol YP-1 is given to provide information support for the analysis process of the power source monitoring unit.

[0018] In addition, the working medium detection module detects and comprehensively analyzes the condition of the hydraulic oil, and judges whether to give the medium judgment symbol YP-2 through analysis, providing information support for the analysis process of the power source monitoring unit; the specific analysis process of the working medium detection module is as follows: The temperature of the hydraulic oil is collected, the difference between the temperature and the median value of the preset suitable hydraulic oil temperature range is calculated and the absolute value is taken to obtain the hydraulic oil temperature risk value, and the content of solid particles and the content of bubbles in the hydraulic oil are collected and marked as the hydraulic oil particle content value and the hydraulic oil gas content value respectively; The hydraulic oil temperature risk value QW, the hydraulic oil particle content value GY, and the hydraulic oil gas content value NP are numerically calculated through the formula TX = (rw1×QW + rw2×GY + rw3×NP) / 3 to obtain the hydraulic oil detection value TX, where rw1, rw2, and rw3 are preset weight coefficients greater than zero, and the larger the numerical value of the hydraulic oil detection value TX, the worse the condition of the working medium in the power source; The hydraulic oil detection value TX is numerically compared with the preset hydraulic oil detection threshold. If the hydraulic oil detection value TX exceeds the preset hydraulic oil detection threshold, it indicates that the current condition of the working medium in the power source is poor, which is not conducive to ensuring the safe and stable operation of the power source, and the medium judgment symbol YP-2 is given.

[0019] Furthermore, the pump body operation detection module conducts operation detection and analysis on the hydraulic pump of the hydraulic pump station, and determines whether to assign the pump body judgment symbol YP-3 through analysis, providing information support for the analysis process of the power source monitoring unit. The specific analysis process of the pump body operation detection module is as follows: Collect the pressure value and flow value output by the hydraulic pump in the hydraulic pump station, and mark them as the pump pressure detection value and the pump flow detection value respectively. Compare the pump pressure detection value and the pump flow detection value with the preset pump pressure detection value range and the preset pump flow detection value range respectively. If the pump pressure detection value or the pump flow detection value is not within the corresponding preset range, it indicates that the operation condition of the hydraulic pump is abnormal, and then assign the pump body judgment symbol YP-3; If both the pump pressure detection value and the pump flow detection value are within the corresponding preset ranges, collect the working speed and working torque of the hydraulic pump. Mark the deviation value of the working speed compared with the set standard speed as the pump speed deviation value, and mark the deviation value of the working torque compared with the set standard torque as the pump torque deviation value. In addition, collect the vibration amplitude value and noise decibel value generated during the operation of the hydraulic pump and mark them as the pump movement characteristic value and the pump sound characteristic value respectively; Calculate the pump body operation value SP by the formula SP = (tu × ZX + eq × WF + fy × HY + ng × YL) / 4 for the pump speed deviation value ZX, the pump torque deviation value WF, the pump movement characteristic value HY, and the pump sound characteristic value YL. Here, tu, eq, fy, and ng are preset weight coefficients greater than zero. Moreover, the larger the numerical value of the pump body operation value SP, the worse the overall operation condition of the hydraulic pump; Compare the pump body operation value SP with the preset pump body operation threshold. If the pump body operation value SP exceeds the preset pump body operation threshold, it indicates that the overall operation condition of the hydraulic pump is abnormal, and then assign the pump body judgment symbol YP-3.

[0020] The hydraulic cylinder movement monitoring unit monitors and analyzes the movement state of the hydraulic cylinder piston rod, and determines whether to generate a hydraulic movement warning signal through analysis. When the hydraulic movement warning signal is generated, it is sent to the real-time alarm unit. When the real-time alarm unit receives the hydraulic movement warning signal, it triggers the alarm mechanism, generates the corresponding alarm information and transmits it to the remote control and supervision terminal; The remote control and supervision terminal displays the alarm information and issues a warning, which can effectively monitor the movement state of the hydraulic cylinder and realize the abnormal warning of the hydraulic cylinder, so as to remind the management personnel to quickly conduct cause investigation and analysis and take corresponding treatment measures for the hydraulic cylinder, further reducing the supervision difficulty of the management personnel. The specific analysis process of the hydraulic cylinder movement monitoring unit is as follows: By installing a displacement sensor on the piston rod of the hydraulic cylinder, monitoring the displacement change of the piston rod, collecting the displacement range of the piston rod, comparing the displacement range of the piston rod with the set standard range, and accordingly obtaining the upper displacement deviation value and the lower displacement deviation value; Numerically compare the upper displacement deviation value and the lower displacement deviation value with the preset upper displacement deviation threshold and the preset lower displacement deviation threshold respectively. If the upper displacement deviation value or the lower displacement deviation value exceeds the corresponding preset threshold, it indicates that the movement range of the piston rod of the hydraulic cylinder is inaccurate and there is a large deviation, then a hydraulic movement warning signal is generated; If both the upper displacement deviation value and the lower displacement deviation value do not exceed the corresponding preset threshold, then obtain the movement speed curve of the hydraulic cylinder within a unit time, mark a number of detection points on the movement speed curve, and the time interval between adjacent two detection points is the same; By calculating the variance of the speeds of all detection points, obtain the hydraulic cylinder speed wave value, numerically compare the hydraulic cylinder speed wave value with the preset hydraulic cylinder speed wave threshold. If the hydraulic cylinder speed wave value exceeds the preset hydraulic cylinder speed wave threshold, it indicates that the fluctuation of the movement speed of the piston rod of the hydraulic cylinder is large, that is, the movement is unstable, then a hydraulic movement warning signal is generated; If the hydraulic cylinder speed wave value does not exceed the preset hydraulic cylinder speed wave threshold, then calculate the average value of the speeds of all detection points to obtain the hydraulic cylinder speed measurement value, calculate the difference between the hydraulic cylinder speed measurement value and the median of the preset hydraulic cylinder speed measurement value range and take the absolute value to obtain the hydraulic cylinder speed deviation value, and mark the ratio of the number of detection points whose speeds are not within the preset hydraulic cylinder speed measurement value range as the hydraulic cylinder speed anomaly value, and mark the maximum deviation amplitude of the speed within a unit time compared with the preset hydraulic cylinder speed measurement value range as the hydraulic cylinder speed amplitude value; Through the formula LX = b2×ZM + (b1×HF + b3×YF) / 2, numerically calculate the hydraulic cylinder speed deviation value HF, the hydraulic cylinder speed anomaly value ZM, and the hydraulic cylinder speed amplitude value YF to obtain the hydraulic cylinder operation risk coefficient LX, where b1, b2, and b3 are preset weight coefficients, b2 > b1 > b3 > 0; and the larger the numerical value of the hydraulic cylinder operation risk coefficient LX, the worse the overall operation performance of the hydraulic cylinder; Numerically compare the hydraulic cylinder operation risk coefficient LX with the preset hydraulic cylinder operation risk coefficient threshold. If the hydraulic cylinder operation risk coefficient LX exceeds the preset hydraulic cylinder operation risk coefficient threshold, it indicates that the overall operation performance of the hydraulic cylinder is poor, then a hydraulic movement warning signal is generated.

[0021] Embodiment 2: As Figure 2 shown, the difference between this embodiment and Embodiment 1 is that the real-time alarm unit is communicatively connected to the control element evaluation unit, and the control element evaluation unit conducts a performance evaluation and analysis on the control elements in the hydraulic loading control unit, and judges whether to generate a control risk signal through the analysis, and sends it to the real-time alarm unit when the control risk signal is generated; When the real-time alarm unit receives the control risk signal, it triggers the alarm mechanism, generates the corresponding alarm information and transmits it to the remote monitoring end. The remote monitoring end displays the alarm information and issues a warning to remind the management personnel to check and adjust the corresponding control components, and strengthen the operation supervision of the control components, so as to reduce the subsequent control risk, with high intelligence and further reducing the supervision difficulty of the management personnel. The specific analysis process of the control component evaluation unit is as follows: All control components in the hydraulic loading control unit are obtained, mainly referring to the three-position four-way electromagnetic directional valve, overflow valve, check valve and proportional pressure reducing valve. The corresponding control components are marked as i, and i is a natural number greater than 1. The current operating state information of the control component i is collected, and based on the operating state information, it is judged in real time whether the current operating state of the control component i meets the requirements. If the corresponding state does not meet the requirements (for example, not opening when it should be opened, not closing when it should be closed, or the opening degree being inconsistent with the required opening degree, etc.), it is judged that the control component i is in a control abnormal state; The number of times that the control component i is judged to be in a control abnormal state during the detection period is obtained and marked as the control abnormal frequency value. And when the control component i receives the corresponding control instruction, the delay duration of its response (that is, the interval duration between the moment of response and the moment of receiving the instruction) is collected and marked as the instruction execution delay duration. The average value of all instruction execution delay durations during the detection period is calculated to obtain the instruction execution efficiency value, and the ratio of the number of instruction execution delay durations exceeding the corresponding preset instruction execution delay duration threshold during the detection period is marked as the instruction execution risk value; The control abnormal frequency value KFi, the instruction execution efficiency value ZYi and the instruction execution risk value PWi are numerically calculated through the formula HNi = up×KFi + te×ZYi + sq×PWi to obtain the component alarm coefficient HNi; where up, te, and sq are preset weight coefficients with values greater than zero, and moreover, the larger the numerical value of the component alarm coefficient HNi, the worse the operating performance of the control component i during the detection period; The component alarm coefficient HNi is numerically compared with the corresponding preset component alarm coefficient threshold. If the component alarm coefficient HNi exceeds the corresponding preset component alarm coefficient threshold, indicating that the operating performance of the control component i during the detection period is not good, then the control component i is marked as a poorly controlled component; if there are poorly controlled components, indicating that the operating control risk during the detection period is relatively large, then a control risk signal is generated.

[0022] Furthermore, if there is no inferiority control component, the component alarm ratio value is calculated by taking the ratio of the component alarm coefficient of the control component i to the corresponding preset component alarm coefficient threshold value. The control evaluation coefficient is calculated by taking the average value of the component alarm condition values of all control components. The control evaluation coefficient is numerically compared with the preset control evaluation coefficient threshold value. If the control evaluation coefficient exceeds the preset control evaluation coefficient threshold value, it indicates that the overall operation control risk during the detection period is relatively large, and then a control risk signal is generated.

[0023] The working principle of the present invention: During use, the hydraulic loading control unit uses a hydraulic pump station as the power source, and combines control components such as a three-position four-way electromagnetic reversing valve, an overflow valve, a one-way valve, and a proportional pressure reducing valve to precisely control the hydraulic cylinder. The power source monitoring unit monitors and analyzes the power source to determine whether a power source warning signal is generated. The hydraulic cylinder movement monitoring unit monitors and analyzes the movement state of the piston rod of the hydraulic cylinder to determine whether a hydraulic movement warning signal is generated. The control component evaluation unit evaluates and analyzes the performance of the control components in the hydraulic loading control unit to determine whether a control risk signal is generated. When a power source warning signal, a hydraulic movement warning signal, or a control risk signal is generated, the remote control and supervision terminal issues a warning to remind the management personnel to quickly conduct a cause investigation and analysis and take targeted improvement measures, significantly reducing the supervision difficulty of the management personnel, realizing the hydraulic monitoring and control of the lime shaft kiln, and having a high degree of intelligence.

[0024] The above formulas are all dimensionless and take their numerical calculations. The formulas are obtained by collecting a large amount of data for software simulation to obtain a formula that is closest to the actual situation. The preset parameters in the formulas are set by those skilled in the art according to the actual situation. The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not elaborate on all the details, nor do they limit the present invention to only the specific implementation manners. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. The hydraulic monitoring and control system applicable to the environmentally friendly lime shaft kiln is characterized by: It includes a hydraulic loading control unit, a power source monitoring unit, a hydraulic cylinder motion monitoring unit, a real-time alarm unit and a remote control monitoring terminal; the hydraulic loading control unit uses a hydraulic pump station as a power source, combined with control elements including a three-position four-way electromagnetic reversing valve, a relief valve, a check valve and a proportional pressure reducing valve, to precisely control the hydraulic cylinder, and adjusts the pressure through the proportional pressure reducing valve to meet the pressure requirements of the lime shaft kiln under different working conditions, and introduces an accumulator at the outlet of the hydraulic pump station to buffer pressure pulsation to reduce energy consumption; The power source monitoring unit monitors and analyzes the power source, and determines whether to generate a power source warning signal through analysis; the hydraulic cylinder movement monitoring unit monitors and analyzes the movement state of the hydraulic cylinder piston rod, and determines whether to generate a hydraulic movement warning signal through analysis; the real-time alarm unit triggers the alarm mechanism when receiving the power source warning signal or the hydraulic movement warning signal, generates corresponding alarm information and transmits it to the remote control monitoring end, which displays the alarm information and issues a warning; The specific analysis process of the hydraulic cylinder motion monitoring unit is as follows: the displacement range of the piston rod is collected, and the upper and lower displacement deviation values ​​are obtained accordingly. If the upper and lower displacement deviation values ​​exceed the corresponding preset thresholds, a hydraulic motion warning signal is generated; If the upper limit deviation value of the displacement and the lower limit deviation value of the displacement do not exceed the corresponding preset threshold value, the hydraulic cylinder risk coefficient is obtained by numerically calculating the hydraulic cylinder speed deviation value, the hydraulic cylinder speed difference value and the hydraulic cylinder speed amplitude value. If the hydraulic cylinder risk coefficient exceeds the preset hydraulic cylinder risk coefficient threshold value, a hydraulic movement warning signal is generated.

2. The hydraulic monitoring and control system for an environmentally friendly lime shaft kiln according to claim 1 is characterized in that: The power source monitoring unit includes a tank level detection module, a working medium detection module and a pump body operation detection module. The tank level detection module monitors the hydraulic oil level in the hydraulic pump station tank. When the level is lower than the preset level threshold, a level judgment symbol YP-1 is assigned. The working medium detection module detects and comprehensively analyzes the hydraulic oil condition, and determines whether to assign the medium judgment symbol YP-2 through analysis; the pump body operation detection module performs operation detection and analysis on the hydraulic pump of the hydraulic pump station, and determines whether to assign the pump body judgment symbol YP-3 through analysis; a power source warning signal is generated when the liquid level judgment symbol YP-1, the medium judgment symbol YP-2 or the pump body judgment symbol YP-3 is assigned.

3. The hydraulic monitoring and control system for an environmentally friendly lime shaft kiln according to claim 2 is characterized in that: The specific analysis process of the working medium detection module is as follows: the hydraulic oil detection value is obtained by numerically calculating the hydraulic oil temperature risk value, the hydraulic oil particle value and the hydraulic oil gas value. If the hydraulic oil detection value exceeds the preset hydraulic oil detection threshold, the medium judgment symbol YP-2 is assigned.

4. The hydraulic monitoring and control system for an environmentally friendly lime shaft kiln according to claim 2 is characterized in that: The specific analysis process of the pump operation detection module is as follows: If the pump pressure detection value or the pump volume detection value is not within the corresponding preset range, the pump body judgment symbol YP-3 is assigned; if the pump pressure detection value and the pump volume detection value are both within the corresponding preset range, the pump body operation value is obtained by numerically calculating the pump speed deviation value, the pump torque deviation value, the pump motion characteristic value and the pump sound characteristic value. If the pump body operation value exceeds the preset pump body operation threshold, the pump body judgment symbol YP-3 is assigned.

5. The hydraulic monitoring and control system for an environmentally friendly lime shaft kiln according to claim 1, characterized in that: The real-time alarm unit is communicatively connected to the control element evaluation unit. The control element evaluation unit performs performance evaluation and analysis on the control elements in the hydraulic loading control unit, and determines whether to generate a control danger signal through analysis. When the control danger signal is generated, it is sent to the real-time alarm unit. When the real-time alarm unit receives the control danger signal, the alarm mechanism is triggered, and corresponding alarm information is generated and transmitted to the remote control monitoring end, which displays the alarm information and issues a warning.

6. The hydraulic monitoring and control system for an environmentally friendly lime shaft kiln according to claim 5, characterized in that: The specific analysis process of the control element evaluation unit is as follows: All control elements in the hydraulic loading control unit are obtained, and the corresponding control element is marked as i, where i is a natural number greater than 1; the element alarm coefficient is obtained by numerically calculating the control frequency difference value, the instruction execution effectiveness value and the instruction execution risk value. If the element alarm coefficient exceeds the corresponding preset element alarm coefficient threshold, the control element i is marked as a poor control element; if a poor control element exists, a control risk signal is generated.

7. The hydraulic monitoring and control system for an environmentally friendly lime shaft kiln according to claim 6, characterized in that: If there is no control failure element, the element warning values ​​of all control elements are averaged to obtain a control evaluation coefficient. If the control evaluation coefficient exceeds a preset control evaluation coefficient threshold, a control danger signal is generated.

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