Gypsum slurry density measurement and control method, system and equipment and storage medium

Abstract

The invention discloses a gypsum slurry density measurement and control method, system and equipment and a storage medium, and relates to the technical field of automatic control, and the method comprises the following steps: controlling a slurry inlet door to be opened and controlling a slurry outlet door to be closed in response to a density measurement trigger signal; controlling the density measuring loop to detect whether the slurry density of the gypsum slurry in the measuring tube is within a preset threshold range, controlling the counter to add 1 on the basis of the current count value when the slurry density is abnormal, judging whether the current count value after adding 1 is not less than a preset alarm threshold, and if yes, stopping the counting; if yes, an alarm signal with the content of density measurement failure and a first feedback signal are output, if not, a slurry inlet door is controlled to be closed, a slurry outlet door is touched to be opened, a flushing valve is controlled to be opened, timing is started, and under the conditions that the flushing valve is opened and the timing duration is not smaller than a preset flushing duration threshold value, the flushing valve is controlled to be closed. The automation degree of gypsum slurry density measurement and control is improved.

Description

Technical Field

[0001] The present application relates to the field of automatic control technology, and in particular to a gypsum slurry density measurement and control method, system, equipment and storage medium. Background Art

[0002] The existing gypsum slurry density measurement and control method usually uses a programmable logic controller (PLC) deployed at different positions of the measuring tube to control the operation of the corresponding equipment, so as to pour the gypsum slurry to be measured into the measuring tube, and output the slurry density based on the pressure difference signal collected by the pressure sensors arranged at both ends of the measuring tube, and guide the flushing water flow to flush the measuring tube after the measurement is completed.

[0003] However, since the programmable logic controller needs to be combined with other equipment or components to perform the corresponding control tasks, and is limited by the inconvenience of equipment wiring caused by the small installation space, the existing PLC-based gypsum slurry density measurement and control method, except for the programmable logic controller used to output the slurry density, other programmable logic controllers are only used to perform the corresponding control tasks, and will not feedback the execution results of the corresponding actions to the upper computer. This results in the operation and maintenance personnel only being able to manually judge whether the density is normal by observing the output slurry density, but unable to determine the specific equipment failure point that caused the abnormal density. It is still necessary to enter the measurement site to troubleshoot the failure point, which reduces the degree of automation. Therefore, how to improve the degree of automation of the gypsum slurry density measurement and control method has become an urgent problem to be solved. Summary of the invention

[0004] In view of the above problems, the present application provides a gypsum slurry density measurement and control method, system, device and storage medium to achieve the purpose of improving the automation level of the gypsum slurry density measurement and control method. The specific scheme is as follows:

[0005] The first aspect of the present application provides a gypsum slurry density measurement and control method, comprising:

[0006] In response to the density measurement trigger signal, the pulp inlet door circuit is controlled to start running to control the pulp inlet door to open, and the pulp outlet door circuit is controlled to start running to control the pulp outlet door to close;

[0007] Upon receiving the first feedback signal of the slurry inlet gate loop and the slurry outlet gate loop, controlling the density measurement loop to run, so as to detect whether the slurry density of the gypsum slurry in the measuring tube is within a preset threshold range, wherein the content of the first feedback signal is the opening and closing state of the slurry inlet gate and the opening and closing state of the slurry outlet gate;

[0008] When the density measurement loop feedback indicates that the measurement result of the slurry density is abnormal, the counter is controlled to add 1 to the current count value, and it is determined whether the current count value after adding 1 is not less than the preset alarm threshold value. If so, the output content is an alarm signal of density measurement failure and the first feedback signal. If not, the slurry inlet gate loop is controlled to end operation to control the slurry inlet gate to close, the slurry outlet gate loop is triggered to end operation to control the slurry outlet gate to open, and the flushing circuit is triggered to start operation to control the flushing valve to open and start timing. When the flushing circuit feedback indicates that the flushing valve has been opened and the timing duration is not less than the preset flushing duration threshold, the flushing circuit is controlled to end operation to control the flushing valve to close.

[0009] In a possible implementation, the method further includes:

[0010] When the density measurement loop feedback is that the measurement result of the slurry density is normal, the control of the slurry inlet gate loop to end operation is executed to control the slurry inlet gate to close, trigger the slurry outlet gate loop to end operation to control the slurry outlet gate to open, and trigger the flushing loop to start operation to control the flushing valve to open and start timing; when the flushing loop feedback is that the flushing valve has been opened and the timing duration is not less than the preset flushing duration threshold, the flushing loop is controlled to end operation to control the flushing valve to close.

[0011] In a possible implementation, when the current count value after adding 1 is less than the preset alarm threshold, the method further includes:

[0012] The output content is a warning signal for recalibration;

[0013] The preset flushing time threshold is updated to the calibrated time received by the front end after the warning signal is issued, and the steps of controlling the pulp inlet door circuit to end operation to control the pulp inlet door to close, triggering the pulp outlet door circuit to end operation to control the pulp outlet door to open, and triggering the flushing circuit to start operation to control the flushing valve to open, and starting the timing operation are executed.

[0014] In a possible implementation, when receiving feedback from the flushing circuit that the flushing valve is open and the timing duration is not less than a preset flushing duration threshold, after controlling the flushing circuit to end operation to control the flushing valve to close, the method further includes:

[0015] Determine whether the density measurement trigger signal is received. If so, execute the control circuit for controlling the pulp inlet door to start running to control the pulp inlet door to open, and control the pulp outlet door circuit to start running to control the pulp outlet door to close.

[0016] A second aspect of the present application provides a gypsum slurry density measurement and control system, comprising:

[0017] Main control module, pulp inlet gate circuit, pulp outlet gate circuit, density measurement circuit and flushing circuit,

[0018] The main control module is used to control the pulp inlet gate circuit to start running in response to the density measurement trigger signal, so that the pulp inlet gate circuit controls the pulp inlet gate to open, and control the pulp outlet gate circuit to start running, so that the pulp outlet gate circuit controls the pulp outlet gate to close;

[0019] The main control module is also used to control the operation of the density measurement circuit when receiving the first feedback signal of the slurry inlet gate circuit and the slurry outlet gate circuit, so that the density measurement circuit detects whether the slurry density of the gypsum slurry in the measuring tube is within a preset threshold range, and the content of the first feedback signal is the opening and closing state of the slurry inlet gate and the opening and closing state of the slurry outlet gate;

[0020] The main control module is also used to control the counter to add 1 to the current count value when receiving feedback from the density measurement loop that the measurement result of the slurry density is abnormal, and determine whether the current count value after adding 1 is not less than the preset alarm threshold. If so, the output content is an alarm signal of density measurement failure and the first feedback signal. If not, the slurry inlet gate loop is controlled to end operation to control the slurry inlet gate to close, trigger the slurry outlet gate loop to end operation to control the slurry outlet gate to open, and trigger the flushing circuit to start operation to control the flushing valve to open and start timing; when receiving the second feedback signal that the flushing circuit feedback content is that the flushing valve has been opened and the timing duration is not less than the preset flushing duration threshold, the flushing circuit is controlled to end operation to control the flushing valve to close.

[0021] In a possible implementation, the main control module is further configured to:

[0022] The main control module is used to, upon receiving feedback from the density measurement loop indicating that the measurement result of the slurry density is normal, control the slurry inlet gate loop to end operation to control the slurry inlet gate to close, trigger the slurry outlet gate loop to end operation to control the slurry outlet gate to open, and trigger the flushing loop to start operation to control the flushing valve to open and start timing; upon receiving a second feedback signal indicating that the flushing loop feedback indicates that the flushing valve has been opened and the timing duration is not less than a preset flushing duration threshold, control the flushing loop to end operation to control the flushing valve to close.

[0023] In a possible implementation, the main control module is further configured to:

[0024] The main control module is used to output a recalibrated warning signal when the current count value after adding 1 is less than the preset alarm threshold; update the preset flushing time threshold to the calibrated time received by the front end after the warning signal is issued, and execute the steps of controlling the slurry inlet gate circuit to end operation so that the slurry inlet gate circuit controls the slurry inlet gate to close, triggering the slurry outlet gate circuit to end operation so that the slurry outlet gate circuit controls the slurry outlet gate to open, and triggering the flushing circuit to start operation so that the flushing circuit controls the flushing valve to open, and starting timing.

[0025] In a possible implementation, the main control module is further configured to:

[0026] The main control module is used to control the flushing circuit to end operation and control the flushing valve to close after receiving feedback from the flushing circuit that the flushing valve is open and the timing duration is not less than the preset flushing duration threshold, and then determine whether the density measurement trigger signal is received. If so, the main control module executes the control of the slurry inlet gate circuit to start operation to control the slurry inlet gate to open, and controls the slurry outlet gate circuit to start operation to control the slurry outlet gate to close.

[0027] A third aspect of the present application provides an electronic device, comprising at least one processor and a memory connected to the processor, wherein:

[0028] The memory is used to store computer programs;

[0029] The processor is used to execute the computer program so that the electronic device can implement the gypsum slurry density measurement and control method of the above-mentioned first aspect or any implementation method of the first aspect.

[0030] A fourth aspect of the present application provides a computer storage medium, which carries one or more computer programs. When the one or more computer programs are executed by an electronic device, the electronic device can implement the gypsum slurry density measurement and control method of the above-mentioned first aspect or any implementation of the first aspect.

[0031] By means of the above technical scheme, the present application provides a gypsum slurry density measurement and control method, system, equipment and storage medium, which are configured to respond to the density measurement trigger signal, control the operation of the slurry inlet door loop to control the opening of the slurry inlet door, and control the operation of the slurry outlet door loop to control the closing of the slurry outlet door. When receiving the first feedback signal of the slurry inlet door loop and the slurry outlet door loop, the density measurement loop is controlled to detect whether the slurry density of the gypsum slurry in the measuring tube is within a preset threshold range. The content of the first feedback signal is the opening and closing state of the slurry inlet door and the opening and closing state of the slurry outlet door. When receiving the content of the density measurement loop feedback that the slurry density is abnormal, the density measurement loop is controlled to detect whether the slurry density of the gypsum slurry in the measuring tube is within a preset threshold range. When the result is correct, the counter is controlled to add 1 to the current count value, and it is determined whether the current count value after adding 1 is not less than the preset alarm threshold. If so, the output content is an alarm signal of density measurement failure and a first feedback signal. If not, the slurry inlet door loop is controlled to close the slurry inlet door, trigger the slurry outlet door loop to open the slurry outlet door, and trigger the flushing loop to open the flushing valve and start timing. When the second feedback signal is received that the flushing loop feedback content is that the flushing valve has been opened and the timing duration is not less than the preset flushing duration threshold, the flushing loop is controlled to close the flushing valve. Automated gypsum slurry density measurement and control is realized. At the same time, by configuring the density measurement loop to monitor whether the slurry density is within the preset threshold range, the degree of automation is improved compared to the method of manually observing whether the density is normal. Finally, by configuring the control counter to add 1 to the current count value when receiving feedback from the density measurement loop indicating an abnormal measurement result of slurry density, and to determine whether the current count value after adding 1 is not less than the preset alarm threshold, if so, the output content is an alarm signal of density measurement failure and a first feedback signal with the content of the opening and closing status of the slurry inlet door and the opening and closing status of the slurry outlet door; if not, the slurry inlet door loop is controlled to close, the slurry outlet door loop is triggered to open, the flushing loop is triggered to open the flushing valve, and the timing operation steps are started, thereby realizing the display of status information of the associated fault point that caused the density measurement failure and automatic retry, thereby improving the degree of automation of gypsum slurry density measurement and control. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and the originals and elements are not necessarily drawn to scale.

[0033] Figure 1 A flow chart of a gypsum slurry density measurement and control method provided in this application;

[0034] Figure 2 A schematic diagram of the structure of a measuring tube provided in this application;

[0035] Figure 3 A schematic diagram of the structure of a density measurement circuit provided in this application;

[0036] Figure 4 A system connection diagram provided for a possible implementation of the present application;

[0037] Figure 5 A block diagram of a gypsum slurry density measurement and control system provided in this application;

[0038] Figure 6 A schematic diagram of the structure of an electronic device provided in this application. DETAILED DESCRIPTION

[0039] The following describes the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. The terms used in the implementation method section of the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application.

[0040] The embodiments of the present application are described below in conjunction with the accompanying drawings. Those skilled in the art will appreciate that, with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0041] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and need not be used to describe a specific order or sequential order. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, which is only to describe the distinction mode adopted by the objects of the same attributes when describing in the embodiments of the present application. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or equipment comprising a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0042] The first aspect of the present application provides a method for measuring and controlling density of gypsum slurry, such as Figure 1As shown, the gypsum slurry density measurement and control method includes:

[0043] S101, in response to a density measurement trigger signal, controlling a pulp inlet door circuit to start running to control the pulp inlet door to open, and controlling a pulp outlet door circuit to start running to control the pulp outlet door to close.

[0044] It should be noted that, in actual application scenarios, the density measurement trigger signal can be a signal generated by the operation and maintenance personnel manually triggering the operation input button according to the actual test scenario requirements, or it can be a signal automatically triggered by a trigger device configured with a timer.

[0045] It should be noted that in actual application scenarios, the above Figure 1 The slurry inlet gate loop, slurry outlet gate loop, density measurement loop and flushing loop in the gypsum slurry density measurement and control method shown can be virtual loops constructed based on a distributed control system (DCS).

[0046] It should be noted that in actual application scenarios, since the programmable logic controller (PLC) needs to cooperate with sensors and actuators to perform corresponding control tasks, it inevitably leads to the need to use a large number of wiring terminals and data transmission lines, which makes the wiring terminals and data transmission lines susceptible to vibration or collision at the work site, resulting in loose connections, affecting the control signal transmission of the PLC, and further affecting the reliability of the existing PLC-based gypsum slurry density measurement and control method. When DCS is used to build the above-mentioned virtual loop, each control device only needs one data transmission line to upload the execution status and collection parameters to the host computer, reducing the number of wiring terminals and data transmission lines, thereby reducing the risk of loose connections between wiring terminals and data transmission lines due to the influence of the on-site environment, and improving the reliability of gypsum slurry density measurement and control.

[0047] It should be noted that in actual application scenarios, since the PLC execution program needs to be manually edited and burned by equipment equipped with professional editing software, the process of adjusting density measurement related parameters is relatively cumbersome. However, this application configures a virtual circuit built on DCS. When the relevant virtual circuit parameters need to be changed, it is only necessary to modify the corresponding parameters through the operation interface of the host computer, which improves the convenience of data update.

[0048] It should be noted that in actual application scenarios, the structural schematic diagram of the measuring tube for measuring the slurry density of the gypsum slurry can be as follows: Figure 2As shown. The measuring tube includes a measuring tube body 201, a slurry inlet door 202, a slurry outlet door 203, a flushing valve 204, a first differential pressure sensor 205 and a second differential pressure sensor 206. In the actual measurement process, the measuring tube 201 is fixed in a direction perpendicular to the ground. The slurry inlet door 202 and the flushing valve 204 are deployed at the first end of the measuring tube 201 away from the ground, the slurry outlet door 203 is deployed at the second end of the measuring tube 201 close to the ground, the first differential pressure sensor 205 is deployed on the inner tube wall of the first end of the measuring tube 201, and the second differential pressure sensor 206 is deployed on the inner tube wall of the second end of the measuring tube 201. After the gypsum slurry enters the measuring tube 201, the first differential pressure sensor 205 and the second differential pressure sensor 205 send the pressures they collect to the host computer through the data transmission line as the input of the density measurement loop. The density calculation module of the density measurement loop calculates the slurry density ρ of the gypsum slurry inside the current measuring tube 201 through the formula: ΔP=ρ·g·h, wherein ΔP is the pressure difference collected by the first differential pressure sensor 205 and the second differential pressure sensor 205, g is the gravitational acceleration, and h is the distance between the first differential pressure sensor 205 and the second differential pressure sensor 205.

[0049] S102. When receiving the first feedback signal from the slurry inlet gate loop and the slurry outlet gate loop, control the operation of the density measurement loop to detect whether the slurry density of the gypsum slurry in the measuring tube is within a preset threshold range, and the content of the first feedback signal is the opening and closing status of the slurry inlet gate and the opening and closing status of the slurry outlet gate.

[0050] It should be noted that, in actual application scenarios, the density measurement loop may be a virtual measurement loop composed of multiple virtual logic operation modules. The density measurement loop may have a variety of structures, and an exemplary structure is provided here:

[0051] like Figure 3 As shown, it is a structural schematic diagram of a density measurement loop, which at least includes: a density calculation module (SUM), an error elimination module (MULT) and a density comparison module (HLALM). Among them, the input of the density calculation module is pressure 1 and pressure 2 respectively collected by two differential pressure sensors. The density calculation module is embedded with the formula ΔP=ρ·g·h to calculate the slurry density ρ, the error elimination module is used to multiply the slurry density ρ output by the density calculation module with a preset coefficient to eliminate the acquisition error, and the density comparison module is used to compare the slurry density output by the error elimination module with a preset threshold range, and output the measurement results including the slurry density and whether the slurry density is normal.

[0052] It should be noted that in actual application scenarios, there are many faults that lead to a decrease in the accuracy of slurry density measurement, such as: the slurry outlet door is not closed tightly, resulting in continuous infusion of slurry during the measurement process, the slurry outlet door is not closed tightly, resulting in continuous leakage during the measurement process, the flushing valve is not closed tightly, resulting in flushing water flowing into the diluted slurry during the measurement process, etc. Therefore, the present application is configured to control the operation of the density measurement loop when the first feedback signal of the slurry inlet door loop and the slurry outlet door loop is received to detect whether the slurry density of the gypsum slurry in the measuring tube is within the preset threshold range, that is, to realize the automatic measurement of the slurry density, and also to realize the collection of the opening and closing states of the slurry inlet door and the slurry outlet door, so as to quickly determine the cause and fault point of the fault through subsequent steps when the slurry density is abnormal, so that the present application improves the degree of automation and the accuracy of fault determination compared to the existing manual inspection and elimination method.

[0053] S103. When receiving feedback from the density measurement loop indicating that the measurement result of the slurry density is abnormal, the counter is controlled to add 1 to the current count value, and it is determined whether the current count value after adding 1 is not less than the preset alarm threshold value. If so, the output content is an alarm signal of density measurement failure and a first feedback signal. If not, the slurry inlet gate loop is controlled to end operation to control the slurry inlet gate to close, the slurry outlet gate loop is triggered to end operation to control the slurry outlet gate to open, and the flushing loop is triggered to start operation to control the flushing valve to open and start timing. When receiving feedback from the flushing loop indicating that the flushing valve has been opened and the timing duration is not less than the preset flushing duration threshold value, the flushing loop is controlled to end operation to control the flushing valve to close.

[0054] It should be noted that in actual application scenarios, since gypsum slurry is a viscous substance, when the viscosity of gypsum slurry is too large, it will not be completely flushed within a preset flushing time, and it will remain on the inner wall of the measuring tube. If the slurry density is measured again at this time, the gypsum slurry remaining on the inner wall of the measuring tube will affect the accuracy of the slurry density measured this time. The prior art requires manual detection and troubleshooting of abnormal slurry density. Therefore, the present application is configured to control the counter to add 1 on the basis of the current count value when receiving the content of the density measurement loop feedback that the slurry density is abnormal, and when the current count value after adding 1 is less than the preset alarm threshold, the slurry inlet gate loop is controlled to end operation to control the slurry inlet gate to close, trigger the slurry outlet gate loop to end operation to control the slurry outlet gate to open, and trigger the flushing loop to start operation to control the flushing valve to open, and start timing; when the content of the flushing loop feedback is received that the flushing valve has been opened, and the timing duration is not less than the preset flushing time threshold, the flushing loop is controlled to end operation to control the flushing valve to close, thereby automatically cleaning the inner wall of the measuring tube.

[0055] It should be noted that in actual application scenarios, since the above-mentioned first feedback signal includes the opening and closing status of the slurry inlet door and the opening and closing status of the slurry outlet door, and the failure of the slurry inlet door and the slurry outlet door will affect the measurement accuracy of the slurry density. Therefore, the present application is configured to control the counter to add 1 to the current count value when the content of the density measurement loop feedback is an abnormal measurement result of the slurry density, and when the current count value after adding 1 is not less than the preset alarm threshold, the output content is an alarm signal of density measurement failure and the first feedback signal, so that the operation and maintenance personnel can quickly determine the fault point according to the first feedback signal without on-site detection, thereby improving the degree of automation.

[0056] The present application controls the operation of the slurry inlet door loop to control the opening of the slurry inlet door, and controls the operation of the slurry outlet door loop to control the closing of the slurry outlet door by configuring a response to a density measurement trigger signal. When receiving a first feedback signal from the slurry inlet door loop and the slurry outlet door loop, the application controls the operation of the density measurement loop to detect whether the slurry density of the gypsum slurry in the measuring tube is within a preset threshold range. The content of the first feedback signal is the opening and closing state of the slurry inlet door and the opening and closing state of the slurry outlet door. When receiving a feedback signal from the density measurement loop indicating an abnormal measurement result of the slurry density ... , and judge whether the current count value after adding 1 is not less than the preset alarm threshold. If so, the output content is the alarm signal of density measurement failure and the first feedback signal. If not, the slurry inlet door loop is controlled to control the slurry inlet door to close, trigger the slurry outlet door loop to control the slurry outlet door to open, and trigger the flushing loop to control the flushing valve to open, and start timing; when the second feedback signal of the flushing loop feedback is received that the flushing valve has been opened and the timing duration is not less than the preset flushing duration threshold, the flushing loop is controlled to control the flushing valve to close. Automated gypsum slurry density measurement and control is realized. At the same time, by configuring the density measurement loop to monitor whether the slurry density is within the preset threshold range, the degree of automation is improved compared to the method of manually observing whether the density is normal. Finally, by configuring the control counter to add 1 to the current count value when receiving feedback from the density measurement loop indicating an abnormal measurement result of slurry density, and to determine whether the current count value after adding 1 is not less than the preset alarm threshold, if so, the output content is an alarm signal of density measurement failure and a first feedback signal with the content of the opening and closing status of the slurry inlet door and the opening and closing status of the slurry outlet door; if not, the slurry inlet door loop is controlled to close, the slurry outlet door loop is triggered to open, the flushing loop is triggered to open the flushing valve, and the timing operation steps are started, thereby realizing the display of status information of the associated fault point that caused the density measurement failure and automatic retry, thereby improving the degree of automation of gypsum slurry density measurement and control.

[0057] In one possible implementation, the above Figure 1 The gypsum slurry density measurement and control method shown also includes:

[0058] When the density measurement loop feedback shows that the measurement result of slurry density is normal, the slurry inlet gate loop is controlled to end operation to control the slurry inlet gate to close, the slurry outlet gate loop is triggered to end operation to control the slurry outlet gate to open, and the flushing loop is triggered to start operation to control the flushing valve to open and start timing; when the flushing loop feedback shows that the flushing valve is open and the timing duration is not less than the preset flushing duration threshold, the flushing loop is controlled to end operation to control the flushing valve to close.

[0059] It should be noted that, in the present application, when the content of the density measurement loop feedback is a measurement result of normal slurry density, the control of the slurry inlet gate loop to end operation is executed to control the slurry inlet gate to close, the slurry outlet gate loop is triggered to end operation to control the slurry outlet gate to open, and the flushing loop is triggered to start operation to control the flushing valve to open and start timing; when the second feedback signal is received that the flushing loop feedback is that the flushing valve has been opened and the timing duration is not less than the preset flushing duration threshold, the flushing loop is controlled to end operation to control the flushing valve to close, thereby realizing automatic flushing of the measuring tube and improving the degree of automation of the gypsum slurry density measurement and control process.

[0060] In a possible implementation, when the current count value after adding 1 is less than the preset alarm threshold, the method further includes:

[0061] The output content is a warning signal for recalibration;

[0062] Update the preset flushing time threshold to the calibrated time received by the front end after the warning signal is issued, and execute the operation steps of controlling the slurry inlet door circuit to end operation to control the slurry inlet door to close, triggering the slurry outlet door circuit to end operation to control the slurry outlet door to open, and triggering the flushing circuit to start operation to control the flushing valve to open, and start timing.

[0063] It should be noted that in actual application scenarios, since gypsum slurry with high viscosity is difficult to flush, if the flushing time corresponding to gypsum slurry with low viscosity is used for flushing, it is very easy to cause gypsum slurry to remain at the end of flushing, thereby affecting the subsequent measurement accuracy. Therefore, this application updates the preset flushing time threshold to the calibration time received by the front end after the warning signal is issued, thereby extending or shortening the flushing time and improving the flushing efficiency of gypsum slurries with different viscosities.

[0064] In a possible implementation, the calibration duration may be a flushing duration set by the operation and maintenance personnel based on the viscosity of the gypsum slurry during the previous measurement.

[0065] In a possible implementation, when receiving feedback from the flushing circuit that the flushing valve is open and the timing duration is not less than the preset flushing duration threshold, the flushing circuit is controlled to end operation to control the flushing valve to close. Figure 1 The gypsum slurry density measurement and control method shown also includes:

[0066] Determine whether a density measurement trigger signal is received. If so, execute the control circuit of the pulp inlet door to start running to control the pulp inlet door to open, and control the pulp outlet door circuit to start running to control the pulp outlet door to close.

[0067] It should be noted that in actual application scenarios, this application controls the flushing circuit to end operation after receiving feedback from the flushing circuit that the flushing valve has been opened and the timing duration is not less than the preset flushing duration threshold, so as to control the flushing valve to close, and then determines whether a density measurement trigger signal is received. If so, the control of the pulp inlet gate circuit starts to operate to control the pulp inlet gate to open, and the control of the pulp outlet gate circuit starts to operate to control the pulp outlet gate to close. This realizes the self-elimination of flushing faults and automatic re-detection after faults, and improves the degree of automation.

[0068] In order to facilitate Figure 1 The understanding of the gypsum slurry density measurement and control method shown is once again explained in conjunction with a possible implementation of the present application:

[0069] like Figure 4 As shown, a method for executing the above Figure 1 The system connection diagram of the gypsum slurry density measurement and control method is shown.

[0070] The operation and maintenance personnel operate the operation input button (D / MA) and send a density measurement trigger signal to the main control board (STEP) through the instruction selection module (OR).

[0071] The main control board (STEP) sends a start operation signal to the pulp inlet gate circuit and the pulp outlet gate circuit respectively, so that the pulp inlet gate circuit controls the pulp inlet gate to open, and the pulp outlet gate circuit controls the pulp outlet gate to close.

[0072] After the pulp inlet gate loop and the pulp outlet gate loop respond to the start operation signal sent by the main control board (STEP) and perform corresponding actions, they feed back a first feedback signal to the main control board (STEP) through the feedback module.

[0073] When receiving the first feedback signal, the main control board (STEP) controls the density measurement loop to start running.

[0074] The density calculation module (SUM) in the density measurement loop calculates the slurry density according to the input pressure signal and sends the slurry density to the error elimination module (MULT). The error elimination module (MULT) eliminates the error of the slurry density and sends the slurry density after error elimination to the density comparison module (HLALM). The density comparison module (HLALM) outputs the measurement result of whether the slurry density is normal according to the slurry density.

[0075] The Error Elimination Module (MULT) also displays the slurry density directly.

[0076] When the measurement result shows that the slurry density is normal, the main control board (STEP) sends an end operation signal to the slurry inlet gate circuit and the slurry outlet gate circuit, and sends a start operation signal to the flushing circuit. When receiving the second feedback signal from the flushing circuit that the flushing valve is open and the timing duration is not less than the preset flushing duration threshold, the main control board (STEP) sends an end operation signal to the flushing circuit to control the flushing valve to close.

[0077] When the measurement result shows that the slurry density is abnormal, the main control board (STEP) sends a counting signal to the counter (CNT) so that the counter (CNT) adds 1 to the current count value. The counter (CNT) sends the counting result to the main control board (STEP). Among them, the technical result represents the size relationship between the current count value and the preset alarm threshold.

[0078] When the counting result indicates that the current counting value is not less than the preset alarm threshold, the main control board (STEP) outputs an alarm signal of density measurement failure and a first feedback signal.

[0079] When the counting result indicates that the current count value is less than the preset alarm threshold, the main control board (STEP) sends an end-of-operation signal to the pulp inlet gate circuit and the pulp outlet gate circuit, and sends a start-of-operation signal to the flushing circuit. When receiving the second feedback signal from the flushing circuit that the flushing valve is open and the timing duration is not less than the preset flushing duration threshold, the main control board (STEP) sends an end-of-operation signal to the flushing circuit to control the flushing valve to close. And monitor whether the density measurement trigger signal is received.

[0080] The second aspect of the present application provides a gypsum slurry density measurement and control system, such as Figure 5 As shown, including:

[0081] Main control module 501, pulp inlet gate circuit 502, pulp outlet gate circuit 503, density measurement circuit 504 and flushing circuit 505,

[0082] The main control module 501 is used to control the pulp inlet gate circuit 502 to start running in response to the density measurement trigger signal, so that the pulp inlet gate circuit 502 controls the pulp inlet gate to open, and control the pulp outlet gate circuit 503 to start running, so that the pulp outlet gate circuit 503 controls the pulp outlet gate to close;

[0083] The main control module 501 is also used to control the operation of the density measurement circuit 504 when receiving the first feedback signal of the slurry inlet gate circuit 502 and the slurry outlet gate circuit 503, so that the density measurement circuit 504 detects whether the slurry density of the gypsum slurry in the measuring tube is within a preset threshold range, and the content of the first feedback signal is the opening and closing state of the slurry inlet gate and the opening and closing state of the slurry outlet gate;

[0084] The main control module 501 is also used to control the counter to add 1 to the current count value when receiving feedback from the density measurement circuit 504 that the measurement result of the slurry density is abnormal, and determine whether the current count value after adding 1 is not less than the preset alarm threshold. If so, the output content is an alarm signal of density measurement failure and a first feedback signal. If not, the slurry inlet gate circuit 502 is controlled to end operation to control the slurry inlet gate to close, trigger the slurry outlet gate circuit 503 to end operation to control the slurry outlet gate to open, and trigger the flushing circuit 505 to start operation to control the flushing valve to open and start timing; when receiving the second feedback signal from the flushing circuit 505 that the flushing valve has been opened and the timing duration is not less than the preset flushing duration threshold, the flushing circuit 505 is controlled to end operation to control the flushing valve to close.

[0085] In a possible implementation, the main control module 501 is further configured to:

[0086] The main control module 501 is used to control the slurry inlet gate loop 502 to end operation to control the slurry inlet gate to close, trigger the slurry outlet gate loop 503 to end operation to control the slurry outlet gate to open, and trigger the flushing loop 505 to start operation to control the flushing valve to open and start timing, when the density measurement loop 504 receives feedback that the measurement result is normal for the slurry density, and the flushing loop 505 is controlled to end operation to control the flushing valve to close.

[0087] In a possible implementation, the main control module 501 is further configured to:

[0088] The main control module 501 is used to output a recalibrated warning signal when the current count value after adding 1 is less than the preset alarm threshold; update the preset flushing time threshold to the calibrated time received by the front end after the warning signal is sent, and execute the control of the pulp inlet gate circuit 502 to end the operation, so that the pulp inlet gate circuit 502 controls the pulp inlet gate to close, trigger the pulp outlet gate circuit 503 to end the operation, so that the pulp outlet gate circuit 503 controls the pulp outlet gate to open, and trigger the flushing circuit 505 to start running, so that the flushing circuit 505 controls the flushing valve to open, and start the timing operation steps.

[0089] In a possible implementation, the main control module 501 is further configured to:

[0090] The main control module 501 is used to control the flushing circuit 505 to end its operation after receiving feedback from the flushing circuit 505 that the flushing valve is open and the timing duration is not less than the preset flushing duration threshold, so as to control the flushing valve to close, and then determine whether a density measurement trigger signal is received. If so, it executes the control of the slurry inlet gate circuit 502 to start running to control the slurry inlet gate to open, and controls the slurry outlet gate circuit 503 to start running to control the slurry outlet gate to close.

[0091] A third aspect of the present application provides an electronic device, comprising at least one processor and a memory connected to the processor, wherein:

[0092] The memory is used to store computer programs;

[0093] The processor is used to execute a computer program so that the electronic device can implement the gypsum slurry density measurement and control method of the first aspect or any implementation method of the first aspect.

[0094] A fourth aspect of the present application provides a computer storage medium, which carries one or more computer programs. When the one or more computer programs are executed by an electronic device, the electronic device can implement the gypsum slurry density measurement and control method of the above-mentioned first aspect or any implementation method of the first aspect.

[0095] The present application also provides an electronic device in an embodiment. Figure 6 As shown, it shows a schematic diagram of the structure of an electronic device suitable for implementing the embodiments of the present application. The electronic device in the embodiments of the present application may include but is not limited to fixed terminals such as mobile phones, notebook computers, PDAs (personal digital assistants), PADs (tablet computers), desktop computers, etc. Figure 6 The electronic device shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0096] like Figure 6As shown, the electronic device may include a processing device (e.g., a central processing unit, a graphics processing unit, etc.) 601, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 602 or a program loaded from a storage device 608 into a random access memory (RAM) 603. When the electronic device is powered on, various programs and data required for the operation of the electronic device are also stored in the RAM 603. The processing device 601, the ROM 602, and the RAM 603 are connected to each other via a bus 604. An input / output (I / O) interface 605 is also connected to the bus 604.

[0097] Typically, the following devices may be connected to the I / O interface 605: an input device 606 including, for example, a touch screen, a touch pad, a keyboard, a mouse, a camera, a microphone, an accelerometer, a gyroscope, etc.; an output device 607 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; a storage device 608 including, for example, a memory card, a hard disk, etc.; and a communication device 609. The communication device 609 may allow the electronic device to communicate with other devices wirelessly or by wire to exchange data. Although Figure 6 An electronic device having various devices is shown, but it should be understood that it is not required to implement or possess all the devices shown. More or fewer devices may be implemented or possessed instead.

[0098] It should also be noted that the device embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, in the drawings of the device embodiments provided by the present application, the connection relationship between the modules indicates that there is a communication connection between them, which may be specifically implemented as one or more communication buses or signal lines.

[0099] Through the description of the above implementation mode, the technicians in the field can clearly understand that the present application can be implemented by means of software plus necessary general hardware, and of course, it can also be implemented by special hardware including special integrated circuits, special CPUs, special memories, special components, etc. In general, all functions completed by computer programs can be easily implemented by corresponding hardware, and the specific hardware structure used to implement the same function can also be various, such as analog circuits, digital circuits or special circuits. However, for the present application, software program implementation is a better implementation mode in more cases. Based on such an understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a readable storage medium, such as a computer floppy disk, a U disk, a mobile hard disk, a ROM, a RAM, a disk or an optical disk, etc., including a number of instructions to enable a computer device (which can be a personal computer, a training device, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0100] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments may be implemented in the form of a computer program product.

[0101] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website site, a computer, a training device, or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, training device, or data center. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a training device, a data center, etc. that includes one or more available media integrations. The available medium may be a magnetic medium, (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state drive (SSD)), etc.

Claims

1. A method for measuring and controlling density of gypsum slurry, characterized in that: include: In response to the density measurement trigger signal, the pulp inlet door circuit is controlled to start running to control the pulp inlet door to open, and the pulp outlet door circuit is controlled to start running to control the pulp outlet door to close; Upon receiving the first feedback signal of the slurry inlet gate loop and the slurry outlet gate loop, controlling the density measurement loop to run, so as to detect whether the slurry density of the gypsum slurry in the measuring tube is within a preset threshold range, wherein the content of the first feedback signal is the opening and closing state of the slurry inlet gate and the opening and closing state of the slurry outlet gate; When the density measurement loop feedback indicates that the measurement result of the slurry density is abnormal, the counter is controlled to add 1 to the current count value, and it is determined whether the current count value after adding 1 is not less than the preset alarm threshold value. If so, the output content is an alarm signal of density measurement failure and the first feedback signal. If not, the slurry inlet gate loop is controlled to end operation to control the slurry inlet gate to close, the slurry outlet gate loop is triggered to end operation to control the slurry outlet gate to open, and the flushing circuit is triggered to start operation to control the flushing valve to open and start timing. When the flushing circuit feedback indicates that the flushing valve has been opened and the timing duration is not less than the preset flushing duration threshold, the flushing circuit is controlled to end operation to control the flushing valve to close.

2. The method for measuring and controlling density of gypsum slurry according to claim 1, characterized in that: The method further comprises: When the density measurement loop feedback is that the measurement result of the slurry density is normal, the control of the slurry inlet gate loop to end operation is executed to control the slurry inlet gate to close, trigger the slurry outlet gate loop to end operation to control the slurry outlet gate to open, and trigger the flushing loop to start operation to control the flushing valve to open and start timing; when the flushing loop feedback is that the flushing valve has been opened and the timing duration is not less than the preset flushing duration threshold, the flushing loop is controlled to end operation to control the flushing valve to close.

3. The method for measuring and controlling density of gypsum slurry according to claim 1, characterized in that: In the case where the current count value after adding 1 is less than the preset alarm threshold, the method further includes: The output content is a warning signal for recalibration; The preset flushing time threshold is updated to the calibrated time received by the front end after the warning signal is issued, and the steps of controlling the pulp inlet door circuit to end operation to control the pulp inlet door to close, triggering the pulp outlet door circuit to end operation to control the pulp outlet door to open, and triggering the flushing circuit to start operation to control the flushing valve to open, and starting the timing operation are executed.

4. The method for measuring and controlling density of gypsum slurry according to claim 3, characterized in that: After receiving feedback from the flushing circuit that the flushing valve has been opened and the timed duration is not less than a preset flushing duration threshold, controlling the flushing circuit to end operation to control the flushing valve to close, the method further includes: Determine whether the density measurement trigger signal is received. If so, execute the control circuit for controlling the pulp inlet door to start running to control the pulp inlet door to open, and control the pulp outlet door circuit to start running to control the pulp outlet door to close.

5. A gypsum slurry density measurement and control system, characterized in that: include: Main control module, pulp inlet gate circuit, pulp outlet gate circuit, density measurement circuit and flushing circuit, The main control module is used to control the pulp inlet gate circuit to start running in response to the density measurement trigger signal, so that the pulp inlet gate circuit controls the pulp inlet gate to open, and control the pulp outlet gate circuit to start running, so that the pulp outlet gate circuit controls the pulp outlet gate to close; The main control module is also used to control the operation of the density measurement circuit when receiving the first feedback signal of the slurry inlet gate circuit and the slurry outlet gate circuit, so that the density measurement circuit detects whether the slurry density of the gypsum slurry in the measuring tube is within a preset threshold range, and the content of the first feedback signal is the opening and closing state of the slurry inlet gate and the opening and closing state of the slurry outlet gate; The main control module is also used to control the counter to add 1 to the current count value when receiving feedback from the density measurement loop that the measurement result of the slurry density is abnormal, and determine whether the current count value after adding 1 is not less than the preset alarm threshold. If so, the output content is an alarm signal of density measurement failure and the first feedback signal. If not, the slurry inlet gate loop is controlled to end operation to control the slurry inlet gate to close, trigger the slurry outlet gate loop to end operation to control the slurry outlet gate to open, and trigger the flushing circuit to start operation to control the flushing valve to open and start timing; when receiving the second feedback signal that the flushing circuit feedback content is that the flushing valve has been opened and the timing duration is not less than the preset flushing duration threshold, the flushing circuit is controlled to end operation to control the flushing valve to close.

6. The gypsum slurry density measurement and control system according to claim 5, characterized in that: The main control module is also configured to: The main control module is used to, upon receiving feedback from the density measurement loop indicating that the measurement result of the slurry density is normal, control the slurry inlet gate loop to end operation to control the slurry inlet gate to close, trigger the slurry outlet gate loop to end operation to control the slurry outlet gate to open, and trigger the flushing loop to start operation to control the flushing valve to open and start timing; upon receiving a second feedback signal indicating that the flushing loop feedback indicates that the flushing valve has been opened and the timing duration is not less than a preset flushing duration threshold, control the flushing loop to end operation to control the flushing valve to close.

7. The gypsum slurry density measurement and control system according to claim 5, characterized in that: The main control module is also configured to: The main control module is used to output a recalibrated warning signal when the current count value after adding 1 is less than the preset alarm threshold; update the preset flushing time threshold to the calibrated time received by the front end after the warning signal is issued, and execute the steps of controlling the slurry inlet gate circuit to end operation so that the slurry inlet gate circuit controls the slurry inlet gate to close, triggering the slurry outlet gate circuit to end operation so that the slurry outlet gate circuit controls the slurry outlet gate to open, and triggering the flushing circuit to start operation so that the flushing circuit controls the flushing valve to open, and starting timing.

8. The gypsum slurry density measurement and control system according to claim 7, characterized in that: The main control module is also configured to: The main control module is used to control the flushing circuit to end operation and control the flushing valve to close after receiving feedback from the flushing circuit that the flushing valve is open and the timing duration is not less than the preset flushing duration threshold, and then determine whether the density measurement trigger signal is received. If so, the main control module executes the control of the slurry inlet gate circuit to start operation to control the slurry inlet gate to open, and controls the slurry outlet gate circuit to start operation to control the slurry outlet gate to close.

9. An electronic device, characterized in that: The method comprises at least one processor and a memory connected to the processor, wherein: The memory is used to store computer programs; The processor is used to execute the computer program so that the electronic device can implement the gypsum slurry density measurement and control method as described in any one of claims 1 to 4.

10. A computer storage medium, characterized in that: The storage medium carries one or more computer programs, and when the one or more computer programs are executed by an electronic device, the electronic device can implement the gypsum slurry density measurement and control method as described in any one of claims 1 to 4.

Images