A method for controlling the material flow rate of a semi-enclosed spiral material reclaimer

Abstract

The present invention discloses a method for controlling the material flow rate of a semi-enclosed spiral reclaimer, which relates to the technical field of material conveying and is used to control the semi-enclosed spiral reclaimer. The method comprises setting a target conveying volume of a horizontal material collecting mechanism and a target rotational speed of the rotating blades of the horizontal material collecting mechanism, and calculating a target filling rate of the horizontal material collecting mechanism based on the target conveying volume and the target rotational speed; adjusting the initial state of the semi-enclosed spiral reclaimer according to the fluidity of the target material, and calculating a theoretical current value of the driving motor of the horizontal material collecting mechanism in the initial state; and dynamically adjusting the rotational speed of the rotating blades of the horizontal material collecting mechanism based on current value comparison. The present application can perform intelligent control of the semi-enclosed spiral reclaimer and achieve stable material collection operations.

Description

Technical Field

[0001] The present application relates to the technical field of material conveying, and in particular to a method for controlling the material flow rate of a semi-enclosed spiral material reclaiming device. Background Art

[0002] A spiral reclaimer is a machine that uses spiral rotation to lift materials, and in practical applications, semi-enclosed spiral reclaimers are more common. Currently, semi-enclosed spiral reclaimers generally include a vertical collection mechanism and a horizontal collection mechanism. The horizontal collection mechanism includes a mounting seat, a rotating shaft, spiral blades, a drive member, a material stopper, and other components. The mounting seat is fixedly connected to the lower end of the vertical collection mechanism, and the rotating shaft is rotatably arranged within the mounting seat. The spiral blades are fixedly connected to the rotating shaft, and the material stopper is rotatably connected to the rotating shaft. The material stopper is arranged along the length of the spiral blade and semi-encloses the spiral blade to form an opening for reclaiming. The vertical collection mechanism includes a vertical lifting cylinder, a rotating shaft, spiral blades, a reduction motor, and other components.

[0003] Current semi-enclosed spiral reclaimers are generally used to reclaim surface materials. If they are buried too deep within the material, problems such as excessive filling rates, motor overload, and spiral blade stalling may occur. Furthermore, for materials with poor fluidity, they perform poorly in dealing with material collapse, often resulting in unstable flow rates. Therefore, achieving intelligent control of semi-enclosed spiral reclaimers has become a pressing issue. Summary of the Invention

[0004] The present application provides a method for controlling the material flow of a semi-enclosed spiral material reclaimer, which can perform intelligent control of the semi-enclosed spiral material reclaimer and achieve stable material reclaiming operations.

[0005] In a first aspect, an embodiment of the present application provides a method for controlling the material flow rate of a semi-enclosed spiral reclaimer, which is used to control the semi-enclosed spiral reclaimer. The method for controlling the material flow rate of the semi-enclosed spiral reclaimer includes:

[0006] Setting a target conveying volume of the horizontal material collecting mechanism and a target rotational speed of the rotating blades of the horizontal material collecting mechanism, and calculating a target filling rate of the horizontal material collecting mechanism based on the target conveying volume and the target rotational speed;

[0007] According to the fluidity of the target material, the target rotation angle of the material stopper is calculated based on the target filling rate to adjust the rotation angle of the material stopper, or the target sinking cutting amount of the horizontal material collecting mechanism is calculated based on the target filling rate to adjust the sinking cutting amount of the horizontal material collecting mechanism, to complete the initial state adjustment of the semi-closed spiral material reclaiming equipment, and calculate the theoretical current value of the horizontal material collecting mechanism drive motor in the initial state;

[0008] After the semi-enclosed spiral feeding equipment is actually used in the initial state, the actual current value of the horizontal feeding mechanism driving motor is obtained and compared with the theoretical current value to dynamically adjust the rotation speed of the rotating blades of the horizontal feeding mechanism.

[0009] In combination with the first aspect, in one embodiment, the target filling rate of the horizontal aggregate mechanism is calculated based on the target conveying volume and the target rotational speed, and the specific calculation method is:

[0010]

[0011] in, Indicates the target conveying volume of the horizontal aggregate mechanism, Indicates the inclination correction coefficient of the semi-enclosed spiral reclaimer, Indicates the pitch coefficient of the horizontal aggregate mechanism, Indicates the bulk density of the target material, represents the target filling rate of the horizontal aggregate mechanism, Indicates the diameter of the rotating blade of the horizontal aggregate mechanism, Indicates the target speed of the rotating blades of the horizontal aggregate mechanism.

[0012] In combination with the first aspect, in one embodiment, the target rotation angle of the material stopper is calculated based on the target filling rate according to the fluidity of the target material to adjust the rotation angle of the material stopper, or the target sinking cutting amount of the horizontal material collection mechanism is calculated based on the target filling rate to adjust the sinking cutting amount of the horizontal material collection mechanism, completing the initial state adjustment of the semi-closed spiral reclaiming device, and calculating the theoretical current value of the horizontal material collection mechanism drive motor in the initial state, specifically including:

[0013] Based on the type of target material, the fluidity of the target material is judged:

[0014] If the fluidity is good, the target rotation angle of the material blocking member is calculated based on the target filling rate, and the rotation angle of the material blocking member is adjusted according to the calculated target rotation angle to complete the initial state adjustment of the semi-closed spiral reclaiming device, and calculate the theoretical current value of the horizontal collecting mechanism drive motor in the initial state;

[0015] If the fluidity is poor, the target sinking cutting amount of the horizontal aggregate mechanism is calculated based on the target filling rate, and the sinking cutting amount of the horizontal aggregate mechanism is adjusted according to the calculated target sinking cutting amount to complete the initial state adjustment of the semi-closed spiral feeding equipment, and calculate the theoretical current value of the horizontal aggregate mechanism drive motor in the initial state.

[0016] In combination with the first aspect, in one embodiment, calculating the target rotation angle of the material stopper based on the target filling rate specifically includes:

[0017] Calculate the material filling area of ​​the horizontal aggregate mechanism when adjusting the rotation angle of the material stopper. Specifically:

[0018]

[0019] in, Indicates the material filling area of ​​the horizontal aggregate mechanism when the stopper rotation angle is adjusted. Indicates the diameter of the rotating blade of the horizontal aggregate mechanism, Indicates the target rotation angle of the stopper. Indicates the natural stacking angle of the target material;

[0020] Based on the calculated material filling area and the target filling rate, the target rotation angle of the material stopper is calculated, specifically:

[0021]

[0022] in, Indicates the target filling rate of the horizontal aggregate mechanism.

[0023] In combination with the first aspect, in one embodiment, after the rotation angle of the material stopper is adjusted to complete the initial state adjustment of the semi-enclosed spiral reclaimer, the theoretical current value of the horizontal material collection mechanism drive motor is specifically calculated as follows:

[0024]

[0025] in, Indicates the theoretical current value of the horizontal aggregate mechanism driving motor, represents the power reserve factor, Indicates the conveying length of the horizontal aggregate mechanism, Indicates the inclination correction coefficient of the semi-enclosed spiral reclaimer, Indicates the pitch coefficient of the horizontal aggregate mechanism, Indicates the bulk density of the target material, Indicates the target speed of the horizontal aggregate mechanism, Indicates the resistance coefficient of the target material, Indicates the voltage of the horizontal aggregate mechanism driving motor, It represents the total efficiency of the horizontal aggregate mechanism driving motor, Indicates the power factor of the horizontal aggregate mechanism drive motor.

[0026] In combination with the first aspect, in one embodiment, the target sinking cutting amount of the horizontal aggregate mechanism is calculated based on the target filling rate, specifically including:

[0027] Calculate the material filling area of ​​the horizontal aggregate mechanism when adjusting the downward cutting amount of the horizontal aggregate mechanism. Specifically:

[0028]

[0029] in, Indicates the material filling area of ​​the horizontal aggregate mechanism when the downward cutting amount of the horizontal aggregate mechanism is adjusted. Indicates the diameter of the rotating blade of the horizontal aggregate mechanism, Indicates the angle between the edge of the stopper and the horizontal plane, that is, the rotation angle of the stopper. Indicates the natural stacking angle of the target material, Indicates the target sinking cutting amount of the horizontal aggregate mechanism;

[0030] Based on the calculated material filling area and the target filling rate, the target sinking cutting amount of the horizontal aggregate mechanism is calculated. Specifically:

[0031]

[0032] in, Indicates the target filling rate of the horizontal aggregate mechanism.

[0033] In combination with the first aspect, in one embodiment, after adjusting the sinking cutting amount of the horizontal collecting mechanism and completing the initial state adjustment of the semi-enclosed spiral reclaimer, the theoretical current value of the driving motor of the horizontal collecting mechanism is specifically calculated as follows:

[0034]

[0035] in, Indicates the theoretical current value of the horizontal aggregate mechanism driving motor, represents the power reserve factor, Indicates the conveying length of the horizontal aggregate mechanism, Indicates the inclination correction coefficient of the semi-enclosed spiral reclaimer, Indicates the pitch coefficient of the horizontal aggregate mechanism, Indicates the bulk density of the target material, Indicates the target speed of the horizontal aggregate mechanism, Indicates the resistance coefficient of the target material, Indicates the voltage of the horizontal aggregate mechanism driving motor, It represents the total efficiency of the horizontal aggregate mechanism driving motor, Indicates the power factor of the horizontal aggregate mechanism drive motor.

[0036] In combination with the first aspect, in one embodiment, after the semi-enclosed spiral reclaiming device is actually used in the initial state, the actual current value of the horizontal collecting mechanism driving motor is obtained, and compared with the theoretical current value to dynamically adjust the rotation speed of the rotating blades of the horizontal collecting mechanism, specifically including:

[0037] After the semi-enclosed spiral reclaiming device is actually used in the initial state, the actual current value of the horizontal collecting mechanism driving motor is periodically obtained, and the obtained actual current value is compared with the theoretical current value to determine whether the difference is within a preset range:

[0038] If not, compare the actual current value with the theoretical current value:

[0039] - When the actual current value is greater than the theoretical current value, the rotation speed of the rotating blade of the horizontal aggregate mechanism is reduced according to the set step size, and the actual current value of the horizontal aggregate mechanism driving motor is obtained again, and the actual current value obtained is compared with the theoretical current value again, and it is again determined whether the difference is within the preset range. This cycle is repeated until the difference between the actual current value obtained and the theoretical current value is within the preset range;

[0040] - When the actual current value is less than the theoretical current value, the rotation speed of the rotating blade of the horizontal aggregate mechanism is increased according to the set step size, and the actual current value of the horizontal aggregate mechanism driving motor is obtained again, and the actual current value obtained is compared with the theoretical current value again, and it is again determined whether the difference is within the preset range. This cycle is repeated until the difference between the actual current value obtained and the theoretical current value is within the preset range;

[0041] If so, no action will be taken.

[0042] In conjunction with the first aspect, in one embodiment,

[0043] The material blocking member is provided with an absolute value encoder;

[0044] The absolute value encoder is used to detect the rotation angle of the material stopper to monitor whether the material stopper is adjusted to the target rotation angle.

[0045] In conjunction with the first aspect, in one embodiment,

[0046] The horizontal material collecting mechanism is provided with an angle sensor;

[0047] The angle sensor is used to detect the sinking cutting amount of the horizontal aggregate mechanism to monitor whether it is adjusted in place according to the target sinking cutting amount.

[0048] The beneficial effects of the technical solutions provided in the embodiments of the present application include:

[0049] By adjusting the rotation angle of the blocking member or the sinking cutting amount of the horizontal feeding mechanism, the initial state adjustment of the semi-enclosed spiral feeding equipment corresponding to the target conveying volume is completed, and in actual use, based on the difference between the actual current value and the theoretical current value of the horizontal feeding mechanism driving motor, the rotation speed of the rotating blade of the horizontal feeding mechanism is adjusted, so that the horizontal feeding mechanism driving motor runs at the theoretical current value and thus operates at the target power, so that the semi-enclosed spiral feeding equipment can perform feeding operations according to the target conveying volume, effectively carry out intelligent control of the semi-enclosed spiral feeding equipment, and realize stable feeding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 This is a flow chart of a method for controlling the material flow rate of a semi-enclosed spiral reclaimer in this application;

[0051] Figure 2 A schematic cross-sectional view of the horizontal material collecting mechanism when adjusting the rotation angle of the material stopper;

[0052] Figure 3 Schematic diagram of the cross section of the horizontal aggregate mechanism for adjusting the amount of downward cutting. DETAILED DESCRIPTION

[0053] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0054] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0055] On the first aspect, an embodiment of the present application provides a method for controlling the material flow rate of a semi-closed spiral material feeding equipment, which is used to control the semi-closed spiral material feeding equipment. By adjusting the initial state of the rotation angle of the material blocking member or the sinking cutting amount of the horizontal material feeding mechanism, and adjusting the rotation speed of the rotating blades of the horizontal material feeding mechanism during actual use, the semi-closed spiral material feeding equipment can perform material feeding operations according to the target conveying volume, effectively realizing the intelligent control of the semi-closed spiral material feeding equipment.

[0056] In one embodiment, referring to Figure 1 , Figure 1 This is a flow chart of the method for controlling the material flow of the semi-enclosed spiral material reclaiming equipment of this application. Figure 1 As shown, the method for controlling the material flow rate of the semi-enclosed spiral reclaimer includes:

[0057] S1: setting a target conveying volume of the horizontal material collecting mechanism and a target rotational speed of the rotating blades of the horizontal material collecting mechanism, and calculating a target filling rate of the horizontal material collecting mechanism based on the target conveying volume and the target rotational speed;

[0058] That is, for the semi-enclosed spiral reclaimer in the default working state, the target conveying capacity of the horizontal aggregate mechanism and the target speed of the rotating blades of the horizontal aggregate mechanism are set according to working experience, and then the target filling rate of the horizontal aggregate mechanism is calculated based on the set target conveying capacity and target speed;

[0059] S2: According to the fluidity of the target material, the target rotation angle of the material stopper is calculated based on the target filling rate to adjust the rotation angle of the material stopper, or the target sinking cutting amount of the horizontal material collecting mechanism is calculated based on the target filling rate to adjust the sinking cutting amount of the horizontal material collecting mechanism, completing the initial state adjustment of the semi-enclosed spiral reclaiming equipment, and calculating the theoretical current value of the horizontal material collecting mechanism drive motor in the initial state;

[0060] S3: After the semi-enclosed spiral feeding equipment is actually used in the initial state, the actual current value of the driving motor of the horizontal feeding mechanism is obtained, and compared with the theoretical current value to dynamically adjust the rotation speed of the rotating blades of the horizontal feeding mechanism.

[0061] Furthermore, in one embodiment, the target filling rate of the horizontal aggregate mechanism is calculated based on the target conveying volume and the target rotational speed. The specific calculation method is:

[0062]

[0063] in, Indicates the target conveying volume of the horizontal aggregate mechanism, Indicates the inclination correction coefficient of the semi-enclosed spiral reclaimer, Indicates the pitch coefficient of the horizontal aggregate mechanism, with a value range of 0.6~0.9. Indicates the bulk density of the target material, represents the target filling rate of the horizontal aggregate mechanism, Indicates the diameter of the rotating blade of the horizontal aggregate mechanism, Represents the target speed of the horizontal collection mechanism's rotating blades. In this technical field, the filling rate is also referred to as the filling coefficient. Based on this formula, adjusting the filling rate and / or the rotating blade speed can adjust the conveying rate. In this application, the target material is the material being conveyed by the semi-enclosed spiral reclaimer during the reclaiming operation.

[0064] The calculation principle of the above formula is explained below.

[0065] According to the geometric relationship, the conveying capacity of the horizontal aggregate mechanism is: ,in, Indicates the cross-sectional area of ​​the target material, Indicates the axial conveying speed of the target material;

[0066] For the cross-sectional area of ​​the target material:

[0067] Axial conveying speed for target material:

[0068] Combining the above formulas, we can get: .

[0069] It should be noted that in actual applications, users will adjust the conveying capacity of the semi-enclosed spiral reclaiming equipment according to operational requirements to match the rear production needs. The adjustment of the conveying capacity of the semi-enclosed spiral reclaiming equipment mainly depends on the adjustment of the conveying volume of the horizontal aggregate mechanism. The conveying volume of the vertical aggregate mechanism only needs to be greater than or equal to the conveying volume of the horizontal aggregate mechanism.

[0070] For the conveying capacity of the vertical aggregate mechanism, the calculation method is:

[0071]

[0072] in, Indicates the conveying capacity of the vertical aggregate mechanism, represents the filling rate of the vertical aggregate mechanism, Indicates the vertical lifting speed of the vertical aggregate mechanism, Indicates the diameter of the rotating blade of the vertical aggregate mechanism, Indicates the diameter of the rotating shaft of the vertical collecting mechanism.

[0073] Furthermore, in one embodiment, according to the fluidity of the target material, the target rotation angle of the material stopper is calculated based on the target filling rate to adjust the rotation angle of the material stopper, or the target sinking cutting amount of the horizontal material collection mechanism is calculated based on the target filling rate to adjust the sinking cutting amount of the horizontal material collection mechanism, completing the initial state adjustment of the semi-closed spiral reclaimer, and calculating the theoretical current value of the horizontal material collection mechanism drive motor in the initial state, specifically including:

[0074] Based on the type of target material, the fluidity of the target material is judged:

[0075] If the fluidity is good, the target rotation angle of the material blocking member is calculated based on the target filling rate, and the rotation angle of the material blocking member is adjusted according to the calculated target rotation angle to complete the initial state adjustment of the semi-closed spiral reclaiming device, and calculate the theoretical current value of the horizontal collecting mechanism drive motor in the initial state;

[0076] If the fluidity is poor, the target downward cutting amount for the horizontal aggregate mechanism is calculated based on the target filling rate. The horizontal aggregate mechanism's downward cutting amount is adjusted based on the calculated target downward cutting amount, completing the initial state adjustment of the semi-enclosed spiral reclaimer. The theoretical current value of the horizontal aggregate mechanism's drive motor in the initial state is calculated. Materials with good fluidity refer to materials with smaller particle diameters and good self-flowing properties, such as soybeans and corn. Materials with poor fluidity refer to materials with larger particle diameters and poor self-flowing properties, such as coal.

[0077] It should be noted that, for the horizontal aggregate mechanism, the feeding amount of the horizontal aggregate mechanism can be changed by adjusting the rotation angle of the material stopper, that is, by controlling the flipping of the material stopper, thereby changing the filling rate of the horizontal aggregate mechanism; or, the feeding amount of the horizontal aggregate mechanism can be changed by adjusting the sinking cutting amount of the horizontal aggregate mechanism, thereby changing the filling rate of the horizontal aggregate mechanism. Therefore, in actual application, when the fluidity of the target material is better, after setting the target conveying amount of the horizontal aggregate mechanism and the target speed of the rotating blades of the horizontal aggregate mechanism, the filling rate of the horizontal aggregate mechanism is changed by adjusting the rotation angle of the material stopper, so that the horizontal aggregate mechanism can take materials according to the target conveying amount; when the fluidity of the target material is poor, after setting the target conveying amount of the horizontal aggregate mechanism and the target speed of the rotating blades of the horizontal aggregate mechanism, the filling rate of the horizontal aggregate mechanism is changed by adjusting the sinking cutting amount of the horizontal aggregate mechanism, so that the horizontal aggregate mechanism can take materials according to the target conveying amount.

[0078] For further information, see Figure 2 FIG. 1 is a schematic cross-sectional view of a horizontal material collection mechanism, wherein the target rotation angle of the material blocking member is calculated based on the target filling rate, specifically including:

[0079] a1: Calculate the material filling area of ​​the horizontal aggregate mechanism when adjusting the rotation angle of the material stopper. Specifically:

[0080]

[0081] in, Indicates the material filling area of ​​the horizontal aggregate mechanism when the stopper rotation angle is adjusted. Indicates the diameter of the rotating blade of the horizontal aggregate mechanism, Indicates the target rotation angle of the stopper, which is obtained based on the angle between the edge of the stopper and the horizontal plane. Indicates the natural stacking angle of the target material; Figure 2 In the figure, the shaded area where the oblique line is located is the material filling area of ​​the horizontal collecting mechanism when the rotation angle of the material stopper is adjusted;

[0082] a2: Based on the calculated material filling area and the target filling rate, the target rotation angle of the material stopper is calculated. Specifically:

[0083] .

[0084] Through steps a1 and a2, the target rotation angle corresponding to the material stopper's rotation angle adjustment can be calculated for a semi-enclosed spiral reclaimer in its default operating state, after setting the target conveying capacity of the horizontal collection mechanism and the target rotation speed of the horizontal collection mechanism's rotating blades. This allows for material stopper adjustment. For the same material, in the absence of compaction, the natural accumulation angle is a constant. Therefore, simply changing the material stopper's rotation angle can alter the filling rate and achieve flow regulation.

[0085] Furthermore, after adjusting the rotation angle of the material stopper to complete the initial state adjustment of the semi-enclosed spiral reclaimer, the theoretical current value of the horizontal material collection mechanism drive motor is calculated as follows:

[0086]

[0087] in, Indicates the theoretical current value of the horizontal aggregate mechanism driving motor, Indicates the power reserve factor, the value range is 1.2~1.4, Indicates the conveying length of the horizontal aggregate mechanism, Indicates the inclination correction coefficient of the semi-enclosed spiral reclaimer, Indicates the pitch coefficient of the horizontal aggregate mechanism, Indicates the bulk density of the target material, Indicates the target speed of the horizontal aggregate mechanism, Indicates the resistance coefficient of the target material, which can be obtained by querying the material manual. Indicates the voltage of the horizontal aggregate mechanism driving motor, Indicates the total efficiency of the horizontal aggregate mechanism drive motor, with a value range of 0.9~0.94. Indicates the power factor of the horizontal aggregate mechanism drive motor.

[0088] For the horizontal aggregate mechanism, as the conveying volume changes, the shaft power and load current of the horizontal aggregate mechanism drive motor will also change accordingly. Therefore, when the conveying volume of the horizontal aggregate mechanism is a constant value, the load current of the horizontal aggregate mechanism drive motor should also be a certain value. Therefore, after setting the target conveying volume of the horizontal aggregate mechanism and the target speed of the rotating blades of the horizontal aggregate mechanism, and calculating the rotation angle of the material blocking member, the theoretical current value of the horizontal aggregate mechanism drive motor can be calculated. When the semi-closed spiral feeding equipment is actually working, the actual current value of the horizontal aggregate mechanism drive motor should be equal to the theoretical current value.

[0089] The following explains the calculation principle of the theoretical current value of the horizontal aggregate mechanism drive motor.

[0090] Since the calculation of various resistances of the horizontal aggregate mechanism is relatively complicated, it can be simplified into two parts: one is the shaft power required for material operation , and secondly, the power required when the horizontal aggregate mechanism is idling , specifically,

[0091]

[0092]

[0093] in, Indicates the target conveying capacity of the horizontal aggregate mechanism;

[0094] Get the net driving power of the horizontal aggregate mechanism :

[0095]

[0096] The driving motor power of the horizontal aggregate mechanism is :

[0097]

[0098] Calculate the relationship between current and delivery:

[0099] .

[0100] Based on this, the theoretical current value of the driving motor of the horizontal material collecting mechanism after the rotation angle of the material blocking member is adjusted can be obtained.

[0101] For further information, see Figure 3 FIG. 1 is a schematic cross-sectional view of a horizontal aggregate mechanism, wherein the target sinking cutting amount of the horizontal aggregate mechanism is calculated based on the target filling rate, specifically including:

[0102] b1: Calculate the material filling area of ​​the horizontal aggregate mechanism when adjusting the downward cutting amount of the horizontal aggregate mechanism. Specifically:

[0103]

[0104] in, Indicates the material filling area of ​​the horizontal aggregate mechanism when the downward cutting amount of the horizontal aggregate mechanism is adjusted. Indicates the diameter of the rotating blade of the horizontal aggregate mechanism, Indicates the angle between the edge of the stopper and the horizontal plane, that is, the rotation angle of the stopper. is a certain value, Indicates the natural stacking angle of the target material, Indicates the target sinking cutting amount of the horizontal aggregate mechanism; Figure 3 In the figure, the shaded area where the oblique line is located is the material filling area of ​​the horizontal aggregate mechanism when the sinking cutting amount is adjusted;

[0105] b2: Based on the calculated material filling area and the target filling rate, the target sinking cutting amount of the horizontal aggregate mechanism is calculated. Specifically:

[0106] .

[0107] Through steps b1 and b2, the target downward cutting amount corresponding to the horizontal aggregate mechanism's downward cutting amount is calculated for a semi-enclosed spiral reclaimer in its default operating state. After setting the target conveying capacity of the horizontal aggregate mechanism and the target rotational speed of the horizontal aggregate mechanism's rotating blades, the target downward cutting amount corresponding to the adjustment of the horizontal aggregate mechanism's downward cutting amount is adjusted. For the same material, in the absence of compaction, the material's natural accumulation angle is a constant. When the rotation angle of the material retaining member is fixed, simply changing the downward cutting amount of the horizontal aggregate mechanism can change the filling rate and achieve flow regulation.

[0108] Furthermore, after adjusting the amount of sinking and cutting of the horizontal aggregate mechanism and completing the initial state adjustment of the semi-enclosed spiral reclaimer, the theoretical current value of the horizontal aggregate mechanism drive motor is calculated as follows:

[0109]

[0110] in, Indicates the theoretical current value of the horizontal aggregate mechanism driving motor, represents the power reserve factor, Indicates the conveying length of the horizontal aggregate mechanism, Indicates the inclination correction coefficient of the semi-enclosed spiral reclaimer, Indicates the pitch coefficient of the horizontal aggregate mechanism, Indicates the bulk density of the target material, Indicates the target speed of the horizontal aggregate mechanism, Indicates the resistance coefficient of the target material, Indicates the voltage of the horizontal aggregate mechanism driving motor, It represents the total efficiency of the horizontal aggregate mechanism driving motor, Indicates the power factor of the horizontal aggregate mechanism drive motor.

[0111] It should be noted that after setting the target conveying capacity of the horizontal material collection mechanism and the target rotation speed of the rotating blades of the horizontal material collection mechanism, and adjusting the material stopper to the target rotation angle, a theoretical current value of the horizontal material collection mechanism drive motor can be calculated. Alternatively, after setting the target conveying capacity of the horizontal material collection mechanism and the target rotation speed of the rotating blades of the horizontal material collection mechanism, and adjusting the horizontal material collection mechanism to the target sinking cutting amount, a theoretical current value of the horizontal material collection mechanism drive motor can be calculated. When the horizontal material collection mechanism operates at the theoretical current value, it is operating at the target power, and the corresponding conveying capacity is the target conveying capacity.

[0112] Furthermore, after the semi-enclosed spiral reclaiming device is actually used in the initial state, the actual current value of the horizontal collecting mechanism driving motor is obtained and compared with the theoretical current value to dynamically adjust the rotation speed of the rotating blade of the horizontal collecting mechanism, specifically including:

[0113] After the semi-enclosed spiral reclaiming device is actually used in the initial state, the actual current value of the horizontal collecting mechanism driving motor is periodically obtained, and the obtained actual current value is compared with the theoretical current value to determine whether the difference is within a preset range:

[0114] If not, compare the actual current value with the theoretical current value:

[0115] - When the actual current value is greater than the theoretical current value, the rotation speed of the rotating blade of the horizontal aggregate mechanism is reduced according to the set step size, and the actual current value of the horizontal aggregate mechanism driving motor is obtained again, and the actual current value obtained is compared with the theoretical current value again, and it is again determined whether the difference is within the preset range. This cycle is repeated until the difference between the actual current value obtained and the theoretical current value is within the preset range;

[0116] - When the actual current value is less than the theoretical current value, the rotation speed of the rotating blade of the horizontal aggregate mechanism is increased according to the set step size, and the actual current value of the horizontal aggregate mechanism driving motor is obtained again, and the actual current value obtained is compared with the theoretical current value again, and it is again determined whether the difference is within the preset range. This cycle is repeated until the difference between the actual current value obtained and the theoretical current value is within the preset range;

[0117] If so, no action will be taken.

[0118] Specifically, when the semi-enclosed spiral reclaiming equipment after the initial state adjustment is put into practical use, under the theoretical state, the semi-enclosed spiral reclaiming equipment will operate at the target speed, and the target rotation angle or the target sinking cutting amount, that is, under the theoretical state, the actual current value of the horizontal aggregate mechanism driving motor is equal to the theoretical current value, but as the material is taken, the material will exert a certain force on the horizontal aggregate mechanism or be affected by factors such as vibration and material distribution. At this time, the rotation angle or sinking cutting amount of the material stopper of the horizontal aggregate mechanism will change, that is, the horizontal aggregate mechanism will no longer rotate at the target angle or target sinking cutting amount. It is running, but still running at the target speed, and the conveying volume will change at this time; referring to the theoretical current value calculation formula, it can be seen that as the rotation angle of the stopper or the sinking cutting amount changes, the current value calculation result will also change. Therefore, the actual current value of the drive motor measured at this time is no longer equal to the theoretical current value. Therefore, the actual current value is compared with the theoretical current value at this time. If the error between the two is within the preset range, it indicates that the offset of the rotation angle of the stopper or the sinking cutting amount is within an acceptable range, and the actual conveying volume of the horizontal aggregate mechanism is also within an acceptable range, then there is no need to control and adjust the horizontal aggregate mechanism.

[0119] If the error between the two is not within the preset range, it indicates that the offset of the stopper's rotation angle or the sinking cutting amount is no longer within the acceptable range. The offset of the stopper's rotation angle or the sinking cutting amount is already large. In this case, the horizontal aggregate mechanism needs to be controlled and adjusted. Refer to the calculation formula for the target filling rate:

[0120]

[0121] According to the calculation principle of the above formula, when the rotation angle of the material stopper or the amount of sinking cutting changes, the filling rate will change accordingly. When the rotating blade speed remains unchanged, the conveying amount of the horizontal aggregate mechanism will change, and thus deviate from the target conveying amount. At this time, in order to ensure that the actual conveying amount of the horizontal aggregate mechanism is close to or equal to the target conveying amount, when the filling rate changes, the rotating blade speed can be adjusted so that the actual conveying amount of the horizontal aggregate mechanism is close to or equal to the target conveying amount, thereby allowing the horizontal aggregate mechanism to perform material collection operations with a stable conveying amount. And because the current value of the drive motor is positively correlated with the rotating blade speed, the current value of the drive motor can be changed while changing the rotating blade speed, so that the current value of the drive motor is close to the theoretical current value, so that the horizontal aggregate mechanism operates at a power close to the target, so that the actual conveying amount of the horizontal aggregate mechanism is still close to or equal to the target conveying amount.

[0122] It should be noted that when comparing the actual current value with the theoretical current value, if the fluidity of the target material is better, the rotation angle of the material blocking member will be adjusted to complete the initial state adjustment of the semi-closed spiral feeding equipment, and the calculated theoretical current value will be compared with the actual current value; if the fluidity of the target material is poor, the sinking cutting amount of the horizontal aggregate mechanism will be adjusted to complete the initial state adjustment of the semi-closed spiral feeding equipment, and the calculated theoretical current value will be compared with the actual current value.

[0123] Furthermore, in one embodiment, the stopper is provided with an absolute encoder for detecting the rotation angle of the stopper to monitor whether the stopper is adjusted to a target rotation angle. The horizontal collecting mechanism is provided with an angle sensor for detecting the amount of downward cutting by the horizontal collecting mechanism to monitor whether the amount of downward cutting by the horizontal collecting mechanism is adjusted to a target amount.

[0124] The method for controlling the material flow rate of a semi-closed spiral feeding equipment in an embodiment of the present application adjusts the rotation angle of the material blocking member or the sinking cutting amount of the horizontal feeding mechanism to complete the initial state adjustment of the semi-closed spiral feeding equipment corresponding to the target conveying volume, and adjusts the rotation speed of the rotating blades of the horizontal feeding mechanism based on the difference between the actual current value and the theoretical current value of the horizontal feeding mechanism driving motor during actual use, so that the horizontal feeding mechanism driving motor runs at the theoretical current value and thus operates at the target power, so that the semi-closed spiral feeding equipment can perform feeding operations according to the target conveying volume, effectively perform intelligent control of the semi-closed spiral feeding equipment, and realize stable feeding operations.

[0125] The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices. The terms "first", "second" and "third" are used to distinguish different objects, etc., and do not represent a sequence, nor do they limit the "first", "second" and "third" to different types.

[0126] In the description of the embodiments of this application, the words "exemplary," "for example," or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary," "for example," or "for example" in the embodiments of this application should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary," "for example," or "for example" is intended to present the relevant concepts in a concrete manner.

[0127] In the description of the embodiments of the present application, unless otherwise specified, “ / ” means or, for example, A / B can mean A or B; “and / or” in the text is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, “multiple” refers to two or more than two.

[0128] In some processes described in the embodiments of the present application, multiple operations or steps are included that appear in a specific order. However, it should be understood that these operations or steps may not be performed in the order in which they appear in the embodiments of the present application or may be performed in parallel. The sequence numbers of the operations are only used to distinguish between different operations, and the sequence numbers themselves do not represent any order of execution. In addition, these processes may include more or fewer operations, and these operations or steps may be performed in sequence or in parallel, and these operations or steps may be combined.

[0129] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, or the part that contributes to the existing technology, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above and includes a number of instructions for enabling a terminal device to execute the methods described in each embodiment of this application.

[0130] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for controlling the material flow rate of a semi-enclosed spiral reclaimer, which is used to control the semi-enclosed spiral reclaimer, characterized in that: The method for controlling the material flow rate of the semi-enclosed spiral material reclaimer comprises: Setting a target conveying volume of the horizontal material collecting mechanism and a target rotational speed of the rotating blades of the horizontal material collecting mechanism, and calculating a target filling rate of the horizontal material collecting mechanism based on the target conveying volume and the target rotational speed; According to the fluidity of the target material, the target rotation angle of the material stopper is calculated based on the target filling rate to adjust the rotation angle of the material stopper, or the target sinking cutting amount of the horizontal material collecting mechanism is calculated based on the target filling rate to adjust the sinking cutting amount of the horizontal material collecting mechanism, to complete the initial state adjustment of the semi-closed spiral material reclaiming equipment, and calculate the theoretical current value of the horizontal material collecting mechanism drive motor in the initial state; After the semi-enclosed spiral feeding equipment is actually used in the initial state, the actual current value of the horizontal feeding mechanism driving motor is obtained and compared with the theoretical current value to dynamically adjust the rotation speed of the rotating blades of the horizontal feeding mechanism.

2. A method for controlling the material flow rate of a semi-enclosed spiral reclaimer according to claim 1, characterized in that: The target filling rate of the horizontal aggregate mechanism is calculated based on the target conveying volume and the target speed. The specific calculation method is: in, Indicates the target conveying volume of the horizontal aggregate mechanism, Indicates the inclination correction coefficient of the semi-enclosed spiral reclaimer, Indicates the pitch coefficient of the horizontal aggregate mechanism, Indicates the bulk density of the target material, represents the target filling rate of the horizontal aggregate mechanism, Indicates the diameter of the rotating blade of the horizontal aggregate mechanism, Indicates the target speed of the rotating blades of the horizontal aggregate mechanism.

3. A method for controlling the material flow rate of a semi-enclosed spiral reclaimer according to claim 1, characterized in that: The target rotation angle of the material stopper is calculated based on the target filling rate according to the fluidity of the target material to adjust the rotation angle of the material stopper, or the target sinking cutting amount of the horizontal material collecting mechanism is calculated based on the target filling rate to adjust the sinking cutting amount of the horizontal material collecting mechanism, completing the initial state adjustment of the semi-closed spiral reclaiming equipment, and calculating the theoretical current value of the horizontal material collecting mechanism drive motor in the initial state, specifically including: Based on the type of target material, the fluidity of the target material is judged: If the fluidity is good, the target rotation angle of the material blocking member is calculated based on the target filling rate, and the rotation angle of the material blocking member is adjusted according to the calculated target rotation angle to complete the initial state adjustment of the semi-closed spiral reclaiming device, and calculate the theoretical current value of the horizontal collecting mechanism drive motor in the initial state; If the fluidity is poor, the target sinking cutting amount of the horizontal aggregate mechanism is calculated based on the target filling rate, and the sinking cutting amount of the horizontal aggregate mechanism is adjusted according to the calculated target sinking cutting amount to complete the initial state adjustment of the semi-closed spiral feeding equipment, and calculate the theoretical current value of the horizontal aggregate mechanism drive motor in the initial state.

4. A method for controlling the material flow rate of a semi-enclosed spiral reclaimer according to claim 3, characterized in that: The step of calculating the target rotation angle of the material stopper based on the target filling rate specifically includes: Calculate the material filling area of ​​the horizontal aggregate mechanism when adjusting the rotation angle of the material stopper. Specifically: in, Indicates the material filling area of ​​the horizontal aggregate mechanism when the stopper rotation angle is adjusted. Indicates the diameter of the rotating blade of the horizontal aggregate mechanism, Indicates the target rotation angle of the stopper. Indicates the natural stacking angle of the target material; Based on the calculated material filling area and the target filling rate, the target rotation angle of the material stopper is calculated, specifically: in, Indicates the target filling rate of the horizontal aggregate mechanism.

5. A method for controlling the material flow rate of a semi-enclosed spiral material reclaimer according to claim 4, characterized in that: After adjusting the rotation angle of the stopper and completing the initial state adjustment of the semi-enclosed spiral reclaimer, the theoretical current value of the horizontal collecting mechanism drive motor is calculated as follows: in, Indicates the theoretical current value of the horizontal aggregate mechanism driving motor, represents the power reserve factor, Indicates the conveying length of the horizontal aggregate mechanism, Indicates the inclination correction coefficient of the semi-enclosed spiral reclaimer, Indicates the pitch coefficient of the horizontal aggregate mechanism, Indicates the bulk density of the target material, Indicates the target speed of the horizontal aggregate mechanism, Indicates the resistance coefficient of the target material, Indicates the voltage of the horizontal aggregate mechanism driving motor, It represents the total efficiency of the horizontal aggregate mechanism driving motor, Indicates the power factor of the horizontal aggregate mechanism drive motor.

6. A method for controlling the material flow rate of a semi-enclosed spiral reclaimer according to claim 3, characterized in that: The target sinking cutting amount of the horizontal aggregate mechanism is calculated based on the target filling rate, specifically comprising: Calculate the material filling area of ​​the horizontal aggregate mechanism when adjusting the downward cutting amount of the horizontal aggregate mechanism. Specifically: in, Indicates the material filling area of ​​the horizontal aggregate mechanism when the downward cutting amount of the horizontal aggregate mechanism is adjusted. Indicates the diameter of the rotating blade of the horizontal aggregate mechanism, Indicates the angle between the edge of the stopper and the horizontal plane, that is, the rotation angle of the stopper. Indicates the natural stacking angle of the target material, Indicates the target sinking cutting amount of the horizontal aggregate mechanism; Based on the calculated material filling area and the target filling rate, the target sinking cutting amount of the horizontal aggregate mechanism is calculated. Specifically: in, Indicates the target filling rate of the horizontal aggregate mechanism.

7. A method for controlling the material flow rate of a semi-enclosed spiral material reclaimer according to claim 6, characterized in that: After adjusting the horizontal material collecting mechanism's sinking cutting amount and completing the initial state adjustment of the semi-enclosed spiral reclaimer, the theoretical current value of the horizontal material collecting mechanism's drive motor can be calculated as follows: in, Indicates the theoretical current value of the horizontal aggregate mechanism driving motor, represents the power reserve factor, Indicates the conveying length of the horizontal aggregate mechanism, Indicates the inclination correction coefficient of the semi-enclosed spiral reclaimer, Indicates the pitch coefficient of the horizontal aggregate mechanism, Indicates the bulk density of the target material, Indicates the target speed of the horizontal aggregate mechanism, Indicates the resistance coefficient of the target material, Indicates the voltage of the horizontal aggregate mechanism driving motor, It represents the total efficiency of the horizontal aggregate mechanism driving motor, Indicates the power factor of the horizontal aggregate mechanism drive motor.

8. The method for controlling the material flow rate of a semi-enclosed spiral material reclaimer according to claim 1, characterized in that: The method of obtaining the actual current value of the driving motor of the horizontal collecting mechanism after the semi-enclosed spiral reclaiming device is actually used in the initial state and comparing it with the theoretical current value to dynamically adjust the rotation speed of the rotating blade of the horizontal collecting mechanism specifically includes: After the semi-enclosed spiral reclaiming device is actually used in the initial state, the actual current value of the horizontal collecting mechanism driving motor is periodically obtained, and the obtained actual current value is compared with the theoretical current value to determine whether the difference is within a preset range: If not, compare the actual current value with the theoretical current value: - When the actual current value is greater than the theoretical current value, the rotation speed of the rotating blade of the horizontal aggregate mechanism is reduced according to the set step size, and the actual current value of the horizontal aggregate mechanism driving motor is obtained again, and the actual current value obtained is compared with the theoretical current value again, and it is again determined whether the difference is within the preset range. This cycle is repeated until the difference between the actual current value obtained and the theoretical current value is within the preset range; - When the actual current value is less than the theoretical current value, the rotation speed of the rotating blade of the horizontal aggregate mechanism is increased according to the set step size, and the actual current value of the horizontal aggregate mechanism driving motor is obtained again, and the actual current value obtained is compared with the theoretical current value again, and it is again determined whether the difference is within the preset range. This cycle is repeated until the difference between the actual current value obtained and the theoretical current value is within the preset range; If so, no action will be taken.

9. The method for controlling the material flow rate of a semi-enclosed spiral reclaimer according to claim 1, characterized in that: The material blocking member is provided with an absolute value encoder; The absolute value encoder is used to detect the rotation angle of the material stopper to monitor whether the material stopper is adjusted to the target rotation angle.

10. The method for controlling the material flow rate of a semi-enclosed spiral reclaimer according to claim 1, characterized in that: The horizontal material collecting mechanism is provided with an angle sensor; The angle sensor is used to detect the sinking cutting amount of the horizontal aggregate mechanism to monitor whether it is adjusted in place according to the target sinking cutting amount.

Images