Permanent magnet motor direct-driven stirring system of gold leaching tank

Abstract

The invention relates to the technical field of gold leaching, in particular to a permanent magnet motor direct-driven stirring system of a gold leaching tank, which comprises a reaction shell, a driving module, a stirring module, a monitoring module and a control module, the control module obtains the specific condition in the stirring process through an image detector in the stirring process of each substance in a reaction cavity, and sends the specific condition to the monitoring module; whether the operation state of the stirring module is qualified or not is judged according to the floating sand change characterization parameter and the solute proportion characterization value, and corresponding treatment measures are adopted when it is determined that the current operation state is abnormal in time, specifically, the operation power of a permanent magnet motor is adjusted to a corresponding value according to the flow velocity difference characterization value, or the pre-tightening force of a corresponding bolt is corrected, and the operation state of the stirring module is determined to be abnormal. The operation stability of the stirring system is effectively improved, and the gold treatment efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of gold leaching, and in particular to a permanent magnet motor direct-driven stirring system for a gold leaching tank. Background Art

[0002] Gold leaching is a key link in the process of gold mining and refining. The traditional gold leaching tank stirring system usually uses an AC motor to drive the stirring device through a complex transmission mechanism. In the past, common mixers used asynchronous motors with reducers to drive them during operation, but during the operation, they would generate large losses, and the efficiency of asynchronous motors was relatively low, which would consume a lot of electricity. The drive system using permanent magnet synchronous motors can not only save more electricity during the operation, but also make the motor assembly easier because the reducer is reduced.

[0003] Chinese Patent Publication No.: CN221588641 U, discloses a mechanical stirring leaching tank for gold smelting and extraction, the stirring mechanism includes a first stirring shaft at the top, the lower end of the first stirring shaft is connected to a first bevel gear, and also includes a second stirring shaft at the bottom, the upper end of the second stirring shaft is connected to a second bevel gear, the first stirring shaft and the second stirring shaft are both longitudinally arranged and the axes coincide, the stirring mechanism also includes a motor arranged outside the tank body, the motor is connected to a drive shaft, and the drive shaft is equipped with an active bevel gear meshing with the first bevel gear and the second bevel gear; the stirring method of the utility model produces a strong convection effect; it can be seen that the above technical solution has the following problems: it does not consider monitoring the leaching process of gold, and does not consider automatically adjusting the operating parameters of the motor according to the monitoring data, which affects the processing efficiency of gold. Summary of the invention

[0004] To this end, the present invention provides a permanent magnet motor direct-driven stirring system for a gold leaching tank, so as to overcome the problem in the prior art that the gold leaching process is not monitored and the operating parameters of the motor are not automatically adjusted according to the monitoring data, thus affecting the processing efficiency of gold.

[0005] To achieve the above object, the present invention provides a gold leaching tank permanent magnet motor direct drive stirring system, comprising:

[0006] A reaction housing, comprising a reaction chamber and an end cover;

[0007] A drive module, comprising a permanent magnet motor connected to the end cover;

[0008] A stirring module, comprising a first stirring mechanism and a second stirring mechanism arranged in the reaction chamber for stirring, the first stirring mechanism and the second stirring mechanism are connected by a plurality of linkage bolts, and the first stirring mechanism and the vertical permanent magnet motor are connected by a plurality of transmission bolts;

[0009] A monitoring module, comprising a first flow rate sensor disposed on the inner wall of the reaction shell near the first stirring mechanism for obtaining an upper flow rate, a second flow rate sensor disposed on the inner wall of the reaction shell near the second stirring mechanism for obtaining a lower flow rate, an image detector disposed on the lower surface of the end cover for obtaining liquid level image information in the reaction chamber, a temperature sensor disposed on one side of the permanent magnet motor for detecting the permanent magnet motor, and a distance sensor disposed adjacent to the image detector for obtaining a liquid level height;

[0010] A control module is arranged outside the reaction shell and is connected to the driving module, the stirring module and the monitoring module, and is used to determine the floating sand change characterization parameter based on the liquid surface image information, and to determine whether the operating state of the stirring module is qualified based on the floating sand change characterization parameter and the solute ratio characterization value, and when it is determined that the operating state of the stirring module does not meet the preset standard, the operating parameters of the stirring module are processed, including: determining to adjust the operating power of the permanent magnet motor to the corresponding value in combination with the flow rate difference characterization value, or correcting the preload force of the corresponding bolt.

[0011] Furthermore, each stirring mechanism includes a rotating main shaft and a first blade and a second blade connected to the rotating main shaft, and each blade is connected to the corresponding rotating main shaft through a plurality of fixing bolts.

[0012] Furthermore, the control module is used to determine floating sand change characterization parameters based on the liquid surface image information, including:

[0013] To obtain the grayscale average value of the liquid surface image information and obtain the floating sand reference value;

[0014] Used to obtain floating sand reference values ​​at predetermined time intervals;

[0015] The absolute value of the difference between the floating sand reference value at the current time node and the floating sand reference value at the adjacent time node is calculated, and the ratio of the absolute value to the predetermined time interval is solved to obtain the floating sand change characterization parameter;

[0016] The control module is used to determine whether the operating state of the stirring module is qualified based on the floating sand change characterization parameter, including:

[0017] If the floating sand change characterization parameter is less than or equal to the first preset change characterization parameter, the operation state of the stirring module is determined to be unqualified, and a processing method for the stirring module is determined based on the parameter difference between the first preset change characterization parameter and the floating sand change characterization parameter;

[0018] If the floating sand change characterization parameter is less than or equal to the second preset change characterization parameter and greater than the first preset change characterization parameter, then judging whether the operation state of the stirring module is qualified based on the solute proportion characterization value;

[0019] If the floating sand change characterization parameter is greater than the second preset change characterization parameter, it is determined that the operation state of the stirring module is qualified, and the driving module is controlled to continue to operate using the current operation parameters.

[0020] Furthermore, the control module is used to determine whether the operation state of the stirring module is qualified based on the solute proportion characterization value, including:

[0021] To determine the solute ratio characterization value, calculate the liquid level difference between the liquid level obtained by the distance sensor at the current time node and the initial liquid level height, and solve the ratio of the liquid level difference to the initial liquid level height to obtain the solute ratio characterization value;

[0022] If the solute proportion characterization value is less than or equal to the preset proportion characterization value, adjusting the first preset change characterization parameter to a corresponding value based on the liquid level difference;

[0023] If the solute ratio characterization value is greater than the preset ratio characterization value, the operation state of the stirring module is determined to be unqualified, and a processing method for the stirring module is determined based on the parameter difference between the first preset change characterization parameter and the floating sand change characterization parameter.

[0024] Further, the control module is used to adjust the first preset change characterization parameter to a corresponding value based on the liquid level difference, wherein:

[0025] The increase amplitude of the first preset change characterization parameter determined based on the liquid level difference is proportional to the liquid level difference.

[0026] Furthermore, the control module is used to determine a processing method for the stirring module based on the parameter difference, including:

[0027] If the parameter difference is less than or equal to the preset parameter difference, the preload force of the corresponding bolt is corrected based on the flow rate difference characterization value, or the operating power of the permanent magnet motor is adjusted to the corresponding value;

[0028] If the parameter difference is greater than the preset parameter difference, the power of the permanent magnet motor is adjusted to a corresponding value based on the temperature of the permanent magnet motor.

[0029] Further, the control module is used to determine and correct the pre-tightening force of the corresponding bolt based on the flow rate difference characterization value, or adjust the operating power of the permanent magnet motor to a corresponding value, including:

[0030] The control module is used to determine the flow velocity difference characterization value, calculate the ratio of the upper flow velocity to the lower flow velocity, and obtain the flow velocity difference characterization value;

[0031] If the flow rate difference characterization value is within a preset flow rate difference characterization interval, adjusting the power of the permanent magnet motor to a corresponding value based on the temperature of the permanent magnet motor;

[0032] If the flow velocity difference characterization value is not within the preset flow velocity difference characterization interval, the preload force of the corresponding bolt is corrected based on the comparison result between the upper flow velocity and the lower flow velocity.

[0033] Further, the control module is used to correct the pre-tightening force of the corresponding bolt based on the comparison result of the upper flow velocity and the lower flow velocity, including:

[0034] If the upper flow velocity is greater than or equal to the lower flow velocity, the preload force of each linkage bolt is adjusted to the corresponding value using the preset preload force adjustment coefficient;

[0035] If the upper flow velocity is less than the lower flow velocity, the preload force of each fixing bolt is adjusted to a corresponding value using the preset preload force adjustment coefficient.

[0036] Further, the control module is used to adjust the power of the permanent magnet motor to a corresponding value based on the temperature of the permanent magnet motor, wherein:

[0037] The increase in power of the permanent magnet motor determined based on the temperature of the permanent magnet motor is positively correlated with the temperature of the permanent magnet motor.

[0038] Furthermore, under the condition of completing the adjustment of the permanent magnet motor power, the control module solves the average value of the re-acquired upper flow velocity and the lower flow velocity, and records it as the flow velocity mean. If the flow velocity mean is less than the corresponding preset flow velocity mean, the preset power adjustment coefficient is used to adjust the permanent magnet motor power to the corresponding value; if the flow velocity mean is greater than or equal to the corresponding preset flow velocity mean, the control drive module runs using the current operating parameters.

[0039] Compared with the prior art, the beneficial effect of the present invention lies in that, during the stirring process of various substances in the reaction chamber, the specific situation of the stirring process is obtained through the image detector, and whether the operating state of the stirring module is qualified is determined according to the floating sand change characterization parameter and the solute ratio characterization value, and corresponding treatment measures are taken in time when it is determined that the current operating state is abnormal, including combining the flow rate difference characterization value to determine whether the operating power of the permanent magnet motor is adjusted to the corresponding value, or correcting the preload force of the corresponding bolt, which effectively improves the stability of the stirring system operation and improves the processing efficiency of gold.

[0040] Furthermore, whether the operating state of the stirring module is qualified is determined based on the floating sand change characterization parameter. The floating sand change characterization parameter characterizes the impurity precipitation situation. As the impurity precipitation process proceeds, the solution color will become turbid, and the obtained grayscale average value will decrease. When it is determined that the floating sand change characterization parameter is less than or equal to the second preset change characterization parameter and greater than the first preset change characterization parameter, there is a tendency for the impurity precipitation rate to be low. In this case, the solute ratio characterization value is determined. The solute ratio characterization value characterizes the solute solution ratio. When the solute ratio characterization value is less than or equal to the preset ratio characterization value, there is an abnormal floating sand change characterization parameter due to a small amount of input material. At this time, the judgment standard is corrected according to the specific situation of the input material, and the monitoring parameters for the stirring module are automatically determined according to the actual working conditions. While improving the accuracy of monitoring the stirring process, the processing efficiency of gold is further improved.

[0041] Furthermore, when it is determined that the operating state of the stirring module does not meet the preset standard, the parameter difference is determined, and the parameter difference characterizes the deviation of the floating sand change characterization parameter. When the parameter difference is greater than the preset parameter difference, the impurity precipitation speed is too slow. In this case, the operating power of the permanent magnet motor is adjusted to accelerate the stirring of the material in the reaction chamber; when the parameter difference is less than or equal to the preset parameter difference, there is a slight deviation in the precipitation of impurities. At this time, the specific situation of the stirring mechanism is determined based on the flow velocity difference characterization value, so as to process the stirring mechanism according to the specific situation; the flow velocity difference characterization value characterizes the specific situation of the upper flow velocity and the lower flow velocity. When the flow velocity difference characterization value is in the preset flow velocity difference characterization interval, the flow conditions of the upper flow velocity and the lower flow velocity are unified. In this case, the components are tightly connected, and due to the abnormal rotation of the permanent magnet motor This causes an abnormal impurity precipitation rate. In this case, the permanent magnet motor is adjusted; when the flow velocity difference characterization value is not in the preset flow velocity difference characterization interval, the flow conditions of the upper flow velocity and the lower flow velocity are not uniform. In this case, there is loose connection between components. At this time, the upper flow velocity is compared with the lower flow velocity. When the upper flow velocity is greater than or equal to the lower flow velocity, the second stirring mechanism rotates abnormally. In this case, the preload force of the linkage bolt is corrected to tighten the connection between the first stirring mechanism and the second stirring mechanism; when the upper flow velocity is less than the lower flow velocity, the stirring mechanism operates abnormally due to loose blades in the first stirring mechanism. The preload force of the fixing bolts is adjusted, and the specific situation of the stirring module is analyzed according to the data determined by the monitoring module. Targeted adjustments are made to each component to improve the processing efficiency of gold. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a module block diagram of a permanent magnet motor direct-driven stirring system for a gold leaching tank according to an embodiment of the present invention;

[0043] Figure 2 This is a schematic diagram of the internal structure of a permanent magnet motor direct-driven stirring system for a gold leaching tank according to an embodiment of the present invention;

[0044] In the figure: 21, permanent magnet motor; 31, first stirring mechanism; 32, first stirring mechanism; 311, first blade; 312, second blade. DETAILED DESCRIPTION

[0045] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0046] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0047] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0048] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] See also Figure 1 and Figure 2 As shown, they are respectively a module block diagram and an internal structure schematic diagram of a permanent magnet motor direct-driven stirring system for a gold leaching tank according to an embodiment of the present invention; a permanent magnet motor direct-driven stirring system for a gold leaching tank according to an embodiment of the present invention comprises:

[0050] Specifically, the reaction housing (not shown) includes a reaction chamber and an end cover;

[0051] A driving module, comprising a permanent magnet motor 21 connected to the end cover;

[0052] A stirring module, comprising a first stirring mechanism 31 and a second stirring mechanism 32 arranged in the reaction chamber for stirring, the first stirring mechanism 31 and the second stirring mechanism 32 are connected by a plurality of linkage bolts (not shown in the figure), and the first stirring mechanism 31 and the vertical permanent magnet motor 21 are connected by a plurality of transmission bolts (not shown in the figure);

[0053] A monitoring module (not shown in the figure), which includes a first flow velocity sensor disposed on the inner wall of the reaction shell near the first stirring mechanism 31 for obtaining the upper flow velocity, a second flow velocity sensor disposed on the inner wall of the reaction shell near the second stirring mechanism 32 for obtaining the lower flow velocity, an image detector disposed on the lower surface of the end cover for obtaining the liquid level image information in the reaction chamber, a temperature sensor disposed on one side of the permanent magnet motor 21 for detecting the permanent magnet motor 21, and a distance sensor disposed adjacent to the image detector for obtaining the liquid level height;

[0054] The control module (not shown in the figure) is used to determine the floating sand change characterization parameter based on the liquid surface image information, and to determine whether the operating state of the stirring module is qualified based on the floating sand change characterization parameter and the solute ratio characterization value, and when it is determined that the operating state of the stirring module does not meet the preset standard, the operating parameters of the stirring module are processed, including: combining the flow rate difference characterization value to determine whether the operating power of the permanent magnet motor 21 is adjusted to the corresponding value, or correcting the preload force of the corresponding bolt.

[0055] Specifically, the specific connection method between the first stirring mechanism 31 and the second stirring mechanism 32, the first stirring mechanism 31 and the permanent magnet motor 21, and each blade and the corresponding rotating main shaft is not limited. They can be fixed by a number of bolts, nuts and flat washers. This is the existing technology and will not be repeated.

[0056] Specifically, the permanent magnet motor 21 connected to the end cover runs to drive the first stirring mechanism 31 to rotate, and the first stirring mechanism 31 drives the second stirring mechanism 32 to rotate, so as to complete the stirring of various substances in the reaction chamber.

[0057] Specifically, in the process of stirring the substances in the reaction chamber, the specific situation of the stirring process is obtained through the image detector, and whether the operating state of the stirring module is qualified is determined based on the floating sand change characterization parameter and the solute ratio characterization value, and corresponding treatment measures are taken in time when it is determined that the current operating state is abnormal, including adjusting the operating power of the permanent magnet motor 21 to the corresponding value in combination with the flow rate difference characterization value, or correcting the preload force of the corresponding bolt, which effectively improves the stability of the stirring system operation and improves the processing efficiency of gold.

[0058] Specifically, each stirring mechanism includes a rotating main shaft (not shown in the figure) and a first blade 311 and a second blade 312 connected to the rotating main shaft, and each blade is connected to the corresponding rotating main shaft through a plurality of fixing bolts (not shown in the figure).

[0059] Specifically, the control module is used to determine floating sand change characterization parameters based on the liquid surface image information, including:

[0060] To obtain the grayscale average value of the liquid surface image information and obtain the floating sand reference value;

[0061] Used to obtain floating sand reference values ​​at predetermined time intervals;

[0062] The absolute value of the difference between the floating sand reference value at the current time node and the floating sand reference value at the adjacent time node is calculated, and the ratio of the absolute value to the predetermined time interval is solved to obtain the floating sand change characterization parameter;

[0063] The control module is used to determine whether the operating state of the stirring module is qualified based on the floating sand change characterization parameter, including:

[0064] If the floating sand change characterization parameter is less than or equal to the first preset change characterization parameter, the operation state of the stirring module is determined to be unqualified, and a processing method for the stirring module is determined based on the parameter difference between the first preset change characterization parameter and the floating sand change characterization parameter;

[0065] If the floating sand change characterization parameter is less than or equal to the second preset change characterization parameter and greater than the first preset change characterization parameter, then judging whether the operation state of the stirring module is qualified based on the solute proportion characterization value;

[0066] If the floating sand change characterization parameter is greater than the second preset change characterization parameter, it is determined that the operation state of the stirring module is qualified, and the driving module is controlled to continue to operate using the current operation parameters.

[0067] Specifically, the first preset change characterization parameter B1 is selected within the interval [0.38L0, 0.42L0], the second preset change characterization parameter B2 is selected within the interval [0.82L0, 0.87L0], and L0 is the average value of each historical floating sand change characterization parameter at the corresponding determination time node.

[0068] Specifically, there is no limit on the number of parameters selected to characterize the historical floating sand changes. In order to ensure the classification of gold leaching conditions, the number of parameters selected should be no less than 200, which will not be repeated here.

[0069] Specifically, the control module is used to determine whether the operation state of the stirring module is qualified based on the solute ratio characterization value, including:

[0070] To determine the solute ratio characterization value, calculate the liquid level difference between the liquid level obtained by the distance sensor at the current time node and the initial liquid level height, and solve the ratio of the liquid level difference to the initial liquid level height to obtain the solute ratio characterization value;

[0071] If the solute proportion characterization value is less than or equal to the preset proportion characterization value, adjusting the first preset change characterization parameter to a corresponding value based on the liquid level difference;

[0072] If the solute ratio characterization value is greater than the preset ratio characterization value, the operation state of the stirring module is determined to be unqualified, and a processing method for the stirring module is determined based on the parameter difference between the first preset change characterization parameter and the floating sand change characterization parameter.

[0073] Specifically, whether the operating state of the stirring module is qualified is determined based on the floating sand change characterization parameter. The floating sand change characterization parameter characterizes the impurity precipitation situation. As the impurity precipitation process proceeds, the solution color will become turbid, and the obtained grayscale average value will decrease. When it is determined that the floating sand change characterization parameter is less than or equal to the second preset change characterization parameter and greater than the first preset change characterization parameter, there is a tendency for the impurity precipitation rate to be low. In this case, the solute ratio characterization value is determined. The solute ratio characterization value characterizes the solute solution ratio. When the solute ratio characterization value is less than or equal to the preset ratio characterization value, there is an abnormal floating sand change characterization parameter due to a small amount of input material. At this time, the judgment standard is corrected according to the specific situation of the input material, and the monitoring parameters for the stirring module are automatically determined according to the actual working conditions. While improving the accuracy of monitoring the stirring process, the processing efficiency of gold is further improved.

[0074] Specifically, the solute ratio characterization value Z0 is selected in the interval [0.63R0, 0.74R0], and R0 is the average of the historical solute ratio characterization values.

[0075] Specifically, there is no limit on the number of selected solute ratio characterization values ​​in historical data. It can be understood that in order to divide the input amount of input materials, the selected number should be no less than 400.

[0076] Specifically, the initial liquid level is the liquid level obtained by the distance sensor before the material is added.

[0077] Specifically, the control module is used to adjust the first preset change characterization parameter to a corresponding value based on the liquid level difference, wherein:

[0078] The increase amplitude of the first preset change characterization parameter determined based on the liquid level difference is proportional to the liquid level difference.

[0079] In this embodiment, optionally,

[0080] The liquid level difference Z is compared with the first liquid level characterization threshold value Z1 and the second liquid level characterization threshold value Z2,

[0081] If Z<Z1, the first parameter adjustment coefficient is used to adjust the first preset change characterization parameter to a corresponding value, and the adjusted first preset change characterization parameter is 1.17 times the initial first preset change characterization parameter;

[0082] If Z1≤Z≤Z2, the first preset change characterization parameter is adjusted to a corresponding value using the second parameter adjustment coefficient, and the adjusted first preset change characterization parameter is 1.24 times the initial first preset change characterization parameter;

[0083] If Z>Z2, the first preset change characterization parameter is adjusted to a corresponding value using the third parameter adjustment coefficient, and the adjusted first preset change characterization parameter is 1.32 times the initial first preset change characterization parameter;

[0084] Among them, Z1=0.53Z0, Z2=0.81Z0.

[0085] Specifically, the control module determines whether the operating state of the stirring module is qualified based on the floating sand change characterization parameter again after completing the adjustment of the first preset change characterization parameter; if the floating sand change characterization parameter is less than or equal to the adjusted first preset change characterization parameter, the operating state of the stirring module is determined to be unqualified, and the processing method for the stirring module is determined based on the parameter difference between the first preset change characterization parameter and the floating sand change characterization parameter; if the floating sand change characterization parameter is greater than the adjusted first preset change characterization parameter, the operating state of the stirring module is determined to be qualified, and the driving module is controlled to continue to operate using the current operating parameters.

[0086] Specifically, the control module is used to determine a processing method for the stirring module based on the parameter difference, including:

[0087] If the parameter difference is less than or equal to the preset parameter difference, the preload force of the corresponding bolt is corrected based on the velocity difference characterization value, or the operating power of the permanent magnet motor 21 is adjusted to the corresponding value;

[0088] If the parameter difference is greater than the preset parameter difference, the power of the permanent magnet motor 21 is adjusted to a corresponding value based on the temperature of the permanent magnet motor 21 .

[0089] Specifically, the parameter difference C0 is selected within the interval [0.25L0, 0.57L0].

[0090] Specifically, the control module is used to determine and correct the pre-tightening force of the corresponding bolt based on the flow rate difference characterization value, or adjust the operating power of the permanent magnet motor 21 to a corresponding value, including:

[0091] The control module is used to determine the flow velocity difference characterization value, calculate the ratio of the upper flow velocity to the lower flow velocity, and obtain the flow velocity difference characterization value;

[0092] If the flow rate difference characterization value is within the preset flow rate difference characterization interval, the power of the permanent magnet motor 21 is adjusted to a corresponding value based on the temperature of the permanent magnet motor 21;

[0093] If the flow velocity difference characterization value is not within the preset flow velocity difference characterization interval, the preload force of the corresponding bolt is corrected based on the comparison result between the upper flow velocity and the lower flow velocity.

[0094] Specifically, the preset flow rate difference characterization interval is [0.97, 1.15].

[0095] Specifically, the control module is used to correct the pre-tightening force of the corresponding bolt based on the comparison result of the upper flow velocity and the lower flow velocity, including:

[0096] If the upper flow velocity is greater than or equal to the lower flow velocity, the preload force of each linkage bolt is adjusted to the corresponding value using the preset preload force adjustment coefficient;

[0097] If the upper flow velocity is less than the lower flow velocity, the preload force of each fixing bolt is adjusted to a corresponding value using the preset preload force adjustment coefficient.

[0098] Specifically, the preload force of each linkage bolt after adjustment using the preset preload force adjustment coefficient is 1.18 times the initial linkage bolt preload force, and the preload force of each fixing bolt after adjustment using the preset preload force adjustment coefficient is 1.18 times the initial fixing bolt preload force. It can be understood that the preset preload force adjustment coefficient can be limited according to the specific bolt size, which will not be repeated here.

[0099] Specifically, the control module is used to adjust the power of the permanent magnet motor 21 to a corresponding value based on the temperature of the permanent magnet motor 21, wherein:

[0100] The increase range of the power of the permanent magnet motor 21 determined based on the temperature of the permanent magnet motor 21 is positively correlated with the temperature of the permanent magnet motor 21 .

[0101] In this embodiment, optionally,

[0102] The temperature T of the permanent magnet motor 21 is compared with the first temperature characterization threshold value T1 and the second temperature characterization threshold value T2,

[0103] If T<T1, the power of the permanent magnet motor 21 is determined as the first power P1, and P1=1.13P0;

[0104] If T1≤T≤T2, the power of the permanent magnet motor 21 is determined as the second power P2, and P2=1.24P0;

[0105] If T>T2, the power of the permanent magnet motor 21 is determined as the third power P3, and P3=1.32P0;

[0106] Wherein, P0 represents the initial power of the permanent magnet motor 21, T1=1.3T0, T2=1.5T0, and T0 is the average value of each historical temperature acquired by the temperature sensor.

[0107] Specifically, when it is determined that the operating state of the stirring module does not meet the preset standard, the parameter difference is determined, and the parameter difference characterizes the deviation of the floating sand change characterization parameter. When the parameter difference is greater than the preset parameter difference, the impurity precipitation speed is too slow. In this case, the operating power of the permanent magnet motor 21 is adjusted to accelerate the stirring of the material in the reaction chamber; when the parameter difference is less than or equal to the preset parameter difference, there is a slight deviation in the precipitation of impurities. At this time, the specific situation of the stirring mechanism is determined based on the flow velocity difference characterization value, so as to process the stirring mechanism according to the specific situation; the flow velocity difference characterization value characterizes the specific situation of the upper flow velocity and the lower flow velocity. When the flow velocity difference characterization value is in the preset flow velocity difference characterization interval, the flow conditions of the upper flow velocity and the lower flow velocity are unified. In this case, the components are tightly connected, and the impurities are not properly stirred due to the abnormal rotation of the permanent magnet motor 21. The mass precipitation rate is abnormal. In this case, the permanent magnet motor 21 is adjusted; when the flow velocity difference characterization value is not in the preset flow velocity difference characterization interval, the flow conditions of the upper flow velocity and the lower flow velocity are not uniform. In this case, there is loose connection between the components. At this time, the upper flow velocity is compared with the lower flow velocity. When the upper flow velocity is greater than or equal to the lower flow velocity, the second stirring mechanism 32 rotates abnormally. In this case, the preload force of the linkage bolt is corrected to tighten the connection between the first stirring mechanism 31 and the second stirring mechanism 32; when the upper flow velocity is less than the lower flow velocity, the stirring mechanism operates abnormally due to the looseness of the blades in the first stirring mechanism 31. The preload force of the fixing bolt is adjusted, and the specific situation of the stirring module is analyzed according to the data determined by the monitoring module, and targeted adjustments are made to each component to improve the processing efficiency of gold.

[0108] Specifically, the control module, under the condition of completing the adjustment of the power of the permanent magnet motor 21, solves the average value of the re-acquired upper flow velocity and the lower flow velocity, and records it as the mean flow velocity. If the mean flow velocity is less than the corresponding preset mean flow velocity, the preset power adjustment coefficient is used to adjust the power of the permanent magnet motor 21 to the corresponding value; if the mean flow velocity is greater than or equal to the corresponding preset mean flow velocity, the control drive module runs using the current operating parameters.

[0109] Specifically, there is no limitation on the method of obtaining the corresponding preset flow rate average. The average value of each flow rate under the current corresponding permanent magnet motor 21 power can be obtained based on historical data, and 0.83 times the solved average value is used as the corresponding preset flow rate average. This will not be repeated.

[0110] Specifically, the power of the permanent magnet motor 21 adjusted using the preset power adjustment coefficient is 1.12 times the current power of the permanent magnet motor 21 .

[0111] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0112] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gold leaching tank permanent magnet motor direct drive stirring system, characterized in that: include: A reaction housing, comprising a reaction chamber and an end cover; A drive module, comprising a permanent magnet motor connected to the end cover; A stirring module, comprising a first stirring mechanism and a second stirring mechanism arranged in the reaction chamber for stirring, the first stirring mechanism and the second stirring mechanism are connected by a plurality of linkage bolts, and the first stirring mechanism and the vertical permanent magnet motor are connected by a plurality of transmission bolts; A monitoring module, comprising a first flow rate sensor disposed on the inner wall of the reaction shell near the first stirring mechanism for obtaining an upper flow rate, a second flow rate sensor disposed on the inner wall of the reaction shell near the second stirring mechanism for obtaining a lower flow rate, an image detector disposed on the lower surface of the end cover for obtaining liquid level image information in the reaction chamber, a temperature sensor disposed on one side of the permanent magnet motor for detecting the permanent magnet motor, and a distance sensor disposed adjacent to the image detector for obtaining a liquid level height; A control module is arranged outside the reaction shell and is connected to the driving module, the stirring module and the monitoring module, and is used to determine the floating sand change characterization parameter based on the liquid surface image information, and to determine whether the operating state of the stirring module is qualified based on the floating sand change characterization parameter and the solute ratio characterization value, and when it is determined that the operating state of the stirring module does not meet the preset standard, the operating parameters of the stirring module are processed, including: determining to adjust the operating power of the permanent magnet motor to the corresponding value in combination with the flow rate difference characterization value, or correcting the preload force of the corresponding bolt.

2. The gold leaching tank permanent magnet motor direct drive stirring system according to claim 1 is characterized in that: Each stirring mechanism comprises a rotating main shaft and a first blade and a second blade connected to the rotating main shaft, and each blade is connected to the corresponding rotating main shaft through a plurality of fixing bolts.

3. The gold leaching tank permanent magnet motor direct drive stirring system according to claim 2 is characterized in that: The control module is used to determine floating sand change characterization parameters based on the liquid surface image information, including: To obtain the grayscale average value of the liquid surface image information and obtain the floating sand reference value; Used to obtain floating sand reference values ​​at predetermined time intervals; The absolute value of the difference between the floating sand reference value at the current time node and the floating sand reference value at the adjacent time node is calculated, and the ratio of the absolute value to the predetermined time interval is solved to obtain the floating sand change characterization parameter; The control module is used to determine whether the operating state of the stirring module is qualified based on the floating sand change characterization parameter, including: If the floating sand change characterization parameter is less than or equal to the first preset change characterization parameter, the operation state of the stirring module is determined to be unqualified, and a processing method for the stirring module is determined based on the parameter difference between the first preset change characterization parameter and the floating sand change characterization parameter; If the floating sand change characterization parameter is less than or equal to the second preset change characterization parameter and greater than the first preset change characterization parameter, then judging whether the operation state of the stirring module is qualified based on the solute proportion characterization value; If the floating sand change characterization parameter is greater than the second preset change characterization parameter, it is determined that the operation state of the stirring module is qualified, and the driving module is controlled to continue to operate using the current operation parameters.

4. The gold leaching tank permanent magnet motor direct drive stirring system according to claim 3 is characterized in that: The control module is used to determine whether the operation state of the stirring module is qualified based on the solute proportion characterization value, including: To determine the solute ratio characterization value, calculate the liquid level difference between the liquid level obtained by the distance sensor at the current time node and the initial liquid level height, and solve the ratio of the liquid level difference to the initial liquid level height to obtain the solute ratio characterization value; If the solute proportion characterization value is less than or equal to the preset proportion characterization value, adjusting the first preset change characterization parameter to a corresponding value based on the liquid level difference; If the solute ratio characterization value is greater than the preset ratio characterization value, the operation state of the stirring module is determined to be unqualified, and a processing method for the stirring module is determined based on the parameter difference between the first preset change characterization parameter and the floating sand change characterization parameter.

5. The gold leaching tank permanent magnet motor direct drive stirring system according to claim 4 is characterized in that: The control module is used to adjust the first preset change characterization parameter to a corresponding value based on the liquid level difference, wherein: The increase amplitude of the first preset change characterization parameter determined based on the liquid level difference is proportional to the liquid level difference.

6. The gold leaching tank permanent magnet motor direct drive stirring system according to claim 5 is characterized in that: The control module is used to determine a processing method for the stirring module based on the parameter difference, including: If the parameter difference is less than or equal to the preset parameter difference, the preload force of the corresponding bolt is corrected based on the flow rate difference characterization value, or the operating power of the permanent magnet motor is adjusted to the corresponding value; If the parameter difference is greater than the preset parameter difference, the power of the permanent magnet motor is adjusted to a corresponding value based on the temperature of the permanent magnet motor.

7. The gold leaching tank permanent magnet motor direct drive stirring system according to claim 6 is characterized in that: The control module is used to determine and correct the pre-tightening force of the corresponding bolt based on the flow rate difference characterization value, or adjust the operating power of the permanent magnet motor to a corresponding value, including: The control module is used to determine the flow velocity difference characterization value, calculate the ratio of the upper flow velocity to the lower flow velocity, and obtain the flow velocity difference characterization value; If the flow rate difference characterization value is within a preset flow rate difference characterization interval, adjusting the power of the permanent magnet motor to a corresponding value based on the temperature of the permanent magnet motor; If the flow velocity difference characterization value is not within the preset flow velocity difference characterization interval, the preload force of the corresponding bolt is corrected based on the comparison result between the upper flow velocity and the lower flow velocity.

8. The gold leaching tank permanent magnet motor direct drive stirring system according to claim 7 is characterized in that: The control module is used to correct the pre-tightening force of the corresponding bolt based on the comparison result of the upper flow velocity and the lower flow velocity, including: If the upper flow velocity is greater than or equal to the lower flow velocity, the preload force of each linkage bolt is adjusted to the corresponding value using the preset preload force adjustment coefficient; If the upper flow velocity is less than the lower flow velocity, the preload force of each fixing bolt is adjusted to a corresponding value using the preset preload force adjustment coefficient.

9. The gold leaching tank permanent magnet motor direct drive stirring system according to claim 8, characterized in that: The control module is used to adjust the power of the permanent magnet motor to a corresponding value based on the temperature of the permanent magnet motor, wherein: The increase in power of the permanent magnet motor determined based on the temperature of the permanent magnet motor is positively correlated with the temperature of the permanent magnet motor.

10. The gold leaching tank permanent magnet motor direct drive stirring system according to claim 9, characterized in that: Under the condition of completing the adjustment of the permanent magnet motor power, the control module solves the average values ​​of the re-acquired upper flow velocity and the lower flow velocity, and records it as the flow velocity mean. If the flow velocity mean is less than the corresponding preset flow velocity mean, the preset power adjustment coefficient is used to adjust the permanent magnet motor power to the corresponding value; if the flow velocity mean is greater than or equal to the corresponding preset flow velocity mean, the control drive module uses the current operating parameters to operate.

Images