Hot in-place recycling new material control system and method

Abstract

The invention provides a hot in-place recycling new material control system and method, and belongs to the technical field of asphalt pavement maintenance. The system comprises a material conveying device, a lifting material door, a collecting device and a control device, the material conveying device, the lifting material door and the collecting device are respectively connected with the control device; the material conveying device is used for outputting the new asphalt material in the hopper to the outside of the lifting material door, so that the new asphalt material is added to a construction pavement; the lifting material door comprises a lifting door body and a turnover door body which are hinged and is used for changing the height of the discharging port. The lifting driving part collecting device is used for collecting the opening posture of the lifting material door, the material conveying speed of the material conveying device and the material pile height of the new asphalt material in the hopper; the control device is used for dynamically adjusting the material conveying speed of the material conveying device and the opening posture of the lifting material door according to data collected by the collecting device. The system not only can identify the current working condition in real time, but also can adjust the opening posture of the lifting material door and the material conveying speed of the material conveying device in real time so as to realize accurate control of the adding proportion of the new asphalt material.

Description

Technical Field

[0001] The invention relates to a control system and method for on-site hot regeneration of new materials, belonging to the technical field of asphalt pavement maintenance. Background Art

[0002] When the current asphalt pavement hot-in-situ regeneration unit is constructed, in order to improve the performance of the old asphalt pavement, a certain proportion of new asphalt concrete needs to be added during the hot-in-situ regeneration construction process. However, during the construction process, there is a large deviation between the actual asphalt addition ratio and the set ratio. This is mainly due to the following defects in most current asphalt addition devices:

[0003] 1. The control of the addition ratio is entirely done manually, which heavily relies on the experience and sense of responsibility of the construction workers.

[0004] 2. Although the control of the addition ratio and the vehicle speed are linked, because the volumetric metering method is adopted, the accuracy of the addition ratio is directly linked to the parameters in the volumetric metering, and these parameters are basically fixed values ​​or simple sensor detection. It does not take into account factors such as insufficient asphalt in the hopper, uneven height distribution of the pile, poor fluidity, etc., which lead to insufficient filling rate of the material gate when the asphalt flows out of the material gate. The result of this volumetric metering method is that the actual addition ratio is seriously lower than the set ratio.

[0005] Failure to control the proportion of new material added will result in the regenerated road surface failing to meet the design standards, seriously affecting the road performance. Therefore, providing a method for accurately controlling the proportion of asphalt material added is a problem to be solved by those skilled in the art. Summary of the invention

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and provide an on-site hot regeneration new material control system and method, which solves the problem of a large deviation between the actual asphalt material addition ratio and the set ratio.

[0007] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0008] In a first aspect, the present invention provides an on-site hot regeneration new material control system, comprising: a material conveying device, a lifting material door, a collection device and a control device.

[0009] The material feeding device, the lifting material door and the collecting device are respectively connected with the control device.

[0010] The feeding device is used to output the new asphalt material in the hopper to the outside of the lifting material gate; the lifting material gate is arranged at the end of the feeding device and is used to change the height of the discharge port; the collecting device is used to collect the opening posture of the lifting material gate, the feeding speed of the feeding device and the pile height of the new asphalt material in the hopper; the control device is used to dynamically adjust the feeding speed of the feeding device and the opening posture of the lifting material gate according to the data collected by the collecting device.

[0011] Furthermore, the lifting material door includes: a lifting door, a flip door and a lifting drive unit; the lifting drive unit is connected to the control device, and is used to drive the lifting door to rise or fall to change the opening posture of the lifting material door; the flip door is hinged on the outside of the lifting door, and the hinge point of the two is higher than the lower edge of the lifting door; the opening posture of the lifting material door includes: the opening height of the lifting door and the flip angle of the flip door; wherein, the opening height of the lifting door is the distance between the lower edge of the lifting door and the feeding plane of the feeding device.

[0012] Furthermore, it also includes: an early warning device connected to the controller, used to issue an alarm according to a signal from the controller; and / or, it also includes: a heating device connected to the controller, used to heat the flip door under construction.

[0013] In a second aspect, the present invention provides a method for controlling in-situ hot regeneration of new materials, using the in-situ hot regeneration new material control system as described in the first aspect, the method comprising: S1: Initialize the feeding speed of the feeding device and the opening posture of the lifting door; S2: Collect the opening posture of the lifting door, the feeding speed of the feeding device and the height of the pile of new asphalt in the hopper; S3: obtaining the height state of the new asphalt material and the filling rate state of the material gate according to the opening posture of the lifting material gate, the feeding speed of the feeding device and the material pile height of the new asphalt material in the hopper; S4: adjusting the feeding speed of the feeding device and the opening posture of the lifting material door according to the height state of the new asphalt material and the filling rate state of the material door.

[0014] Furthermore, the lifting material door includes: a lifting door and a flip door hinged on the outside of the lifting door; the opening posture of the lifting material door includes: an opening height of the lifting door and a flip angle of the flip door.

[0015] Initializing the feeding speed of the feeding device and the opening posture of the lifting door includes: initializing the feeding speed of the feeding device according to the construction speed of the vehicle, and the expression is: ; In the formula, is the initial feeding speed of the feeding device, is the feed speed adjustment coefficient, Add the target asphalt new material ratio, The construction speed of the vehicle.

[0016] Initialize the opening posture of the lifting door, the expression is: In the formula, The initial opening height of the lifting door. is the material door opening adjustment coefficient, It is the maximum opening height of the lifting door.

[0017] Further, the S3 includes: S31: obtaining a material flow height output value in the feeding device according to the turning angle of the turning door, the feeding speed of the feeding device and the opening height of the lifting door; S32: Obtaining the filling rate state of the material gate according to the material flow height output value and the opening height of the lifting door; S33: Obtaining the height state of the new asphalt material according to the material flow height output value and the material pile height of the new asphalt material in the hopper.

[0018] Further, the S31 includes: calculating and obtaining a calculated value of the material flow height, the expression is: ; In the formula, is the calculated value of material flow height, is the current opening height of the lift door, The distance from the hinge point of the flip door to the lower edge of the lift door. It is the distance from the projection of the lifting door on the conveyor belt to the outlet of the flat conveyor belt. is the feeding speed of the current feeding device, is the correction parameter for the impact of the material flow on the flip door, The flip angle of the current flip door.

[0019] Compare the calculated flow height The opening height of the current lift door , get the material flow height output value ; In response to ,but ; In response to ,but .

[0020] Further, the S32 includes: calculating the first material gate filling rate within a preset period of time, the expression is: ; In the formula, is the filling rate of the first material gate, A sampling sequence of material flow height output values ​​within a preset time period;

[0021] Calculate the filling rate of the second material gate within the preset period of time, the expression is: ; In the formula, is the filling rate of the second material gate, is the sampling sequence of the opening height of the lifting door within a preset period of time, It is the correction parameter for the material gate filling rate.

[0022] In response to , it is determined that the filling rate of the material gate is sufficient; in response to , it is determined that the filling rate of the material gate is insufficient.

[0023] The S33 includes: responding to , it is determined that the new asphalt material is highly sufficient; in response to , it is determined that the height of the new asphalt material is insufficient; among them, is the height of the new asphalt pile in the current hopper, Correction parameter for the material pile height in the hopper.

[0024] Further, the S4 includes: in response to the filling rate of the material gate being sufficient or the height of the new asphalt material being insufficient, the opening height of the current lifting gate is kept unchanged, and the feeding speed compensation value is calculated to compensate for the feeding speed of the current feeding device; in response to the insufficient filling rate of the material gate and the sufficient height of the new asphalt material, indicating that the fluidity of the material pile is not good, the feeding speed of the current feeding device is kept unchanged, and the opening height compensation value is calculated to compensate for the opening height of the current lifting gate; wherein, the calculation formula of the feeding speed compensation value is: ;

[0025] The calculation formula for the opening height compensation value is: ; In the formula, is the mass of asphalt delivered within the preset period, and the calculation formula is: ; In the formula, is the feeding speed of the current feeding device, is the width of the lift door, is the output value of material flow height, is the density of asphalt.

[0026] Furthermore, the system also includes: a heating device connected to the controller, and before S1, it also includes: turning on the heating device to heat the flip door to a preset temperature; and / or, the system also includes: an early warning device connected to the controller, and S4 also includes: in response to insufficient height of the new asphalt material or insufficient filling rate of the material door, driving the early warning device to sound an alarm.

[0027] Compared with the prior art, the present invention has the following beneficial effects: (1) The control system provided by the present invention can not only collect the opening posture of the lifting door, the feeding speed of the feeding device and the height of the pile of new asphalt in the hopper in real time to achieve accurate identification of the current working conditions, but also set a control device to adjust the opening posture of the lifting door and the feeding speed of the feeding device according to the current working conditions to achieve accurate control of the proportion of new asphalt added; (2) The control system provided by the present invention adopts a hinged lifting door and a flip door. The lifting door can be adjusted in real time according to the real-time working conditions. The flip door is used to observe the material flow height. The material flow height is calculated in combination with the flip angle of the flip door, so that the calculation of the material flow height is more accurate, which is conducive to the accurate calculation of the amount of new asphalt added; (3) The control method provided by the present invention observes the real-time material flow height by collecting the current material feeding speed of the material feeding device, the current turning angle of the turning door and the current opening height of the lifting door, and then observes the current height state of the new asphalt material, the filling rate state of the material gate and the mass of the added new asphalt material according to the material flow height. In the case that the height of the new asphalt material is insufficient, the filling rate of the material gate is sufficient or the fluidity of the material pile is poor, the material feeding speed compensation value is calculated according to the mass of the added new asphalt to compensate for the material feeding speed of the material feeding device, or the opening height compensation value is calculated to compensate for the opening height of the lifting door, so as to adjust the actual addition ratio of the new asphalt material to make it closer to the preset target addition ratio of the new asphalt material. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of a control system for in-situ thermal regeneration of new materials in some embodiments of the present invention;

[0029] Figure 2 It is a schematic diagram of the relative relationship between the collection device, the material door, the hopper, and the asphalt material in the control system of the in-situ hot regeneration new material in some embodiments of the present invention;

[0030] In the figure: 1-lifting door; 2-flipping door; 3-opening posture collection device; 4-pile height collection device; 5-control device; 6-early warning device; 7-feeding device; 21-heating device; 31-opening height collection device; 32-flipping angle collection device; 33-feeding speed collection device. DETAILED DESCRIPTION

[0031] 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 necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices. The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0032] Example 1

[0033] This embodiment provides a control system for hot regeneration of new materials in situ, such as Figure 1 As shown, it includes: a material feeding device 7, a lifting material door, a collection device and a control device 5.

[0034] Specifically, the feeding device 7, the lifting door and the collection device are respectively connected to the control device 5. The control device 5 obtains the data collected by the collection device, and performs calculations based on the data to determine the real-time working conditions, and then makes corresponding decisions, and sends control signals to the feeding device 7 or the lifting door to dynamically adjust the feeding speed of the feeding device 7 and the opening posture of the lifting door.

[0035] In some specific embodiments, the control device 5 is a vehicle controller of the on-site heat regeneration equipment.

[0036] The feeding device 7 is used to output the new asphalt in the hopper to the outside of the lifting door. Figure 1 As shown, the feeding device 7 is arranged at the bottom of the hopper. When new asphalt material is added into the hopper, a material pile is formed. After the feeding device 7 is turned on, the new asphalt material at the bottom is continuously fed out of the lifting door.

[0037] In some specific embodiments, the feeding device 7 is arranged in a horizontal shape or a slightly downwardly inclined shape.

[0038] In some specific embodiments, the feeding device 7 includes: a hydraulic motor, a hydraulic proportional valve, and a feeding plate.

[0039] The lifting gate is arranged at the end of the feeding device and is used to change the height of the discharge port.

[0040] In some specific embodiments, the lifting material door includes: a lifting door 1, a flip door 2 and a lifting drive unit; the lifting drive unit drives the lifting door 1 to rise or fall according to a signal from the control device 5 to change the opening posture of the lifting material door.

[0041] In these embodiments, the hinge is at the lower outer side of the lift door 1 , and the hinge point of the two is higher than the lower edge of the lift door 1 .

[0042] The flip door 2 is arranged below the lifting door 1 and is hinged with the lifting door 1. It can be lifted and lowered with the lifting door 1 and can be freely flipped around the hinge axis. When the asphalt material is conveyed through the feeding device 7, the flip door 2 will be pushed in the material flow direction and a certain angle will be formed. Therefore, the opening posture of the lifting door includes not only the opening height of the lifting door 1, but also the flip angle of the flip door 2.

[0043] It should be noted that the opening height of the lifting door 1 is the distance between the lower edge of the lifting door 1 and the feeding plane of the feeding device 7, and the flip angle of the flip door 2 is the angle at which the flip door 2 flips from the vertical state to the discharge direction.

[0044] In some more specific embodiments, when the lifting door 1 rises to the highest point, the flip door 2 is in a freely hanging state, and its lower edge is lower than the material flow bearing surface of the feeding device 7 .

[0045] The collection device is used to collect the opening posture of the lifting door, the feeding speed of the feeding device and the pile height of the new asphalt material in the hopper. The collection device includes: an opening posture collection device 3, a pile height collection device 4 and a feeding speed collection device 33, wherein the opening posture collection device 3 includes: an opening height collection device 31 and a flip angle collection device 32.

[0046] In some specific embodiments, the material pile height acquisition device 4 is an ultrasonic sensor, which is installed above the lifting door 1, with the installation height exceeding the height of the entire hopper, and the sensing surface faces downward, and is used to detect the height of the material pile inside the hopper near the lifting door 1. In addition, the opening height acquisition device 31 is a height sensor, the flip angle acquisition device 32 is an angle sensor, and the feeding speed acquisition device 33 is a rotation speed sensor.

[0047] In some specific embodiments, the on-site hot regeneration new material control system further includes: an early warning device 6 connected to the controller, which is used to send out an audible and visual alarm according to a signal from the controller, and can remind construction personnel to pay attention to abnormal conditions.

[0048] In some specific embodiments, the on-site hot regeneration new material control system further includes: a heating device 21 connected to the controller, for heating the flip door in the construction state.

[0049] Specifically, the heating device 21 is installed on the back of the flip door 2. Under construction, the heating device 21 can heat the flip door 2 to above 90°C, so that there is no asphalt material adhering to the flip door 2 under the impact of the material flow, ensuring that the angle accuracy detected by the flip angle acquisition device 32 is not affected.

[0050] Example 2

[0051] This embodiment provides a method for controlling on-site hot regeneration of new materials, using the on-site hot regeneration new material control system as described in Example 1, the method comprising:

[0052] Step 1: Initialize the feeding speed of the feeding device 7 and the opening posture of the lifting door.

[0053] Specifically, when the on-site hot regeneration equipment is just started, the control device 5 is used to initialize the feeding speed of the feeding device 7 and the opening posture of the lifting door, and then adjustments are made based on the initialized operating state so that the actual asphalt new material addition ratio gradually approaches the preset target asphalt new material addition ratio.

[0054] In some specific embodiments, the feeding speed of the feeding device 7 is initialized according to the vehicle construction speed, and the expression is: ; In the formula, is the initial feeding speed of the feeding device, is the feed speed adjustment coefficient, Add the target asphalt new material ratio, The construction speed of the vehicle.

[0055] The expression for initializing the opening posture of the lifting door is: ; In the formula, The initial opening height of the lifting door. is the material door opening adjustment coefficient, It is the maximum opening height of the lifting door.

[0056] In some embodiments containing a heating device, before step 1, the method further includes: turning on the heating device to heat the flip door to above 90° C. so that no asphalt material adheres to the flip door 2, thereby improving the accuracy of the flip angle collected by the collection device without being affected.

[0057] Step 2: Collect the opening posture of the lifting door, the feeding speed of the feeding device 7 and the pile height of the new asphalt material in the hopper.

[0058] Specifically, the control device 5 obtains the required real-time operation data through the acquisition device, and performs calculations and decisions based on the real-time operation data.

[0059] In the embodiment including the lifting door and the flip door, the opening posture of the lifting door includes: the opening height of the lifting door 1 and the flip angle of the flip door 2.

[0060] Step 3: Obtain the height state of the new asphalt material and the filling rate state of the material gate according to the opening posture of the lifting material gate, the feeding speed of the feeding device and the pile height of the new asphalt material in the hopper.

[0061] Specifically, the material flow height output value in the feeding device is first obtained according to the turning angle of the turning door, the feeding speed of the feeding device and the opening height of the lifting door.

[0062] In an embodiment containing a lifting door and a flip door, the material flow height output value is obtained by calculating the material flow height value, comparing the material flow height value with the current opening height of the lifting door, and taking the smaller value as the material flow height output value.

[0063] In some specific embodiments, the calculation formula for the calculated value of the material flow height is: ; In the formula, is the calculated value of material flow height, is the current opening height of the lift door, The distance from the hinge point of the flip door to the lower edge of the lift door. It is the distance from the projection of the lifting door on the conveyor belt to the outlet of the flat conveyor belt. is the feeding speed of the current feeding device, is the correction parameter for the impact of the material flow on the flip door, The flip angle of the current flip door.

[0064] if ,but ;if ,but .

[0065] Then, the material gate filling rate status is obtained according to the material flow height output value and the opening height of the lifting door.

[0066] Specifically, to obtain the material gate filling rate state, it is necessary to first obtain the sampling sequence of the material flow height output value and the sampling sequence of the opening height of the lifting door within a preset period, and then sum them up to obtain the corresponding first material gate filling rate and second material gate filling rate. Finally, the material gate filling rate state is determined by comparing the first material gate filling rate and the second material gate filling rate.

[0067] In some specific embodiments, the calculation formula for the first material gate filling rate is: ;

[0068] The calculation formula for the filling rate of the second material gate is: ; In the formula, is the filling rate of the first material gate, is the filling rate of the second material gate, A sampling sequence of material flow height output values ​​within a preset time period; is the sampling sequence of the opening height of the lifting door within a preset period of time, It is the correction parameter for the material gate filling rate.

[0069] if , then it is determined that the filling rate of the material gate is sufficient; if , it is determined that the filling rate of the material gate is insufficient.

[0070] Then, the height state of the new asphalt material is obtained according to the material flow height output value and the material pile height of the new asphalt material in the hopper.

[0071] In some specific embodiments, if the pile height of the new asphalt in the hopper is , then it is determined that the height of the new asphalt material is sufficient; otherwise, it is determined that the height of the new asphalt material is insufficient. Correction parameter for the material pile height in the hopper.

[0072] Step 4: adjusting the feeding speed of the feeding device and the opening posture of the lifting material door according to the height state of the new asphalt material and the filling rate state of the material door.

[0073] Specifically, if the filling rate of the material gate is sufficient or the height of the new asphalt material is insufficient, the feeding speed compensation value is calculated and the feeding speed of the current feeding device is compensated; if the filling rate of the material gate is insufficient and the height of the new asphalt material is sufficient, it means that the fluidity of the material pile is poor, then the opening height compensation value is calculated and the opening height of the current lifting door is compensated.

[0074] In some specific embodiments, the calculation formula of the feed speed compensation value is: ;

[0075] The calculation formula for the opening height compensation value is: ; In the formula, is the mass of asphalt delivered within the preset period, and the calculation formula is: ; In the formula, is the feeding speed of the current feeding device, is the width of the lift door, is the output value of material flow height, is the density of asphalt.

[0076] In some embodiments including an early warning device, if the height of the new asphalt material is insufficient or the filling rate of the material gate is insufficient, the control device 5 drives the early warning device to emit an audible and visual alarm to remind the operator to add new asphalt material to the hopper or check for abnormal conditions.

[0077] This method calculates the feeding speed compensation value according to the mass of the added new asphalt material to compensate for the feeding speed of the feeding device, or calculates the opening height compensation value to compensate for the opening height of the lifting door, so as to adjust the current operation of the on-site hot regeneration equipment, that is, adjusts the actual addition ratio of the new asphalt material to make it closer to the preset target new asphalt material addition ratio.

[0078] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A control system for hot-in-situ regeneration of new materials, comprising: Feeding device, lifting door, collecting device and control device; The material feeding device, the lifting material door and the collecting device are respectively connected to the control device; The feeding device is used to output the new asphalt in the hopper to the outside of the lifting door; The lifting gate is arranged at the end of the feeding device and is used to change the height of the discharge port; The collecting device is used to collect the opening posture of the lifting door, the feeding speed of the feeding device and the pile height of the new asphalt material in the hopper; The control device is used to dynamically adjust the feeding speed of the feeding device and the opening posture of the lifting material door according to the data collected by the collecting device.

2. The on-site hot regeneration new material control system according to claim 1 is characterized in that: The lifting material door comprises: a lifting door, a flip door and a lifting drive unit; the lifting drive unit is connected to the control device and is used to drive the lifting door to rise or fall to change the opening posture of the lifting material door; The flip door is hinged on the outside of the lift door, and the hinge point of the two is higher than the lower edge of the lift door; The opening posture of the lifting door includes: the opening height of the lifting door and the flip angle of the flip door; wherein the opening height of the lifting door is the distance between the lower edge of the lifting door and the feeding plane of the feeding device.

3. The on-site hot regeneration new material control system according to claim 2 is characterized in that: Also includes: An early warning device connected to the controller, used to issue an alarm according to the signal of the controller; And / or, it also includes: a heating device connected to the controller, used for heating the flip door in the construction state.

4. A method for controlling in-situ thermal regeneration of new materials, characterized in that: Using the in-situ hot regeneration new material control system as described in any one of claims 1 to 3, the method includes: S1: Initialize the feeding speed of the feeding device and the opening posture of the lifting door; S2: Collect the opening posture of the lifting door, the feeding speed of the feeding device and the height of the pile of new asphalt in the hopper; S3: obtaining the height state of the new asphalt material and the filling rate state of the material gate according to the opening posture of the lifting material gate, the feeding speed of the feeding device and the material pile height of the new asphalt material in the hopper; S4: adjusting the feeding speed of the feeding device and the opening posture of the lifting material door according to the height state of the new asphalt material and the filling rate state of the material door.

5. The method for controlling in-situ hot regeneration of new materials according to claim 4, characterized in that: The lifting material door comprises: a lifting door and a flip door hinged on the outside of the lifting door; The opening posture of the lifting door includes: the opening height of the lifting door and the flip angle of the flip door; The initialization of the feeding speed of the feeding device and the opening posture of the lifting door includes: Initialize the feeding speed of the feeding device according to the vehicle construction speed. The expression is: ； In the formula, is the initial feeding speed of the feeding device, is the feed speed adjustment coefficient, Add the preset ratio of new asphalt material. is the vehicle construction speed; Initialize the opening posture of the lifting door, the expression is: ； In the formula, The initial opening height of the lifting door. is the material door opening adjustment coefficient, It is the maximum opening height of the lifting door.

6. The method for controlling in-situ hot regeneration of new materials according to claim 5, characterized in that: The S3 includes: S31: obtaining a material flow height output value in the feeding device according to the turning angle of the turning door, the feeding speed of the feeding device and the opening height of the lifting door; S32: Obtaining the filling rate state of the material gate according to the material flow height output value and the opening height of the lifting door; S33: Obtaining the height state of the new asphalt material according to the material flow height output value and the material pile height of the new asphalt material in the hopper.

7. The method for controlling in-situ hot regeneration of new materials according to claim 6, characterized in that: The S31 includes: The calculated value of the material flow height is calculated as follows: ； In the formula, is the calculated value of material flow height, is the current opening height of the lift door, The distance from the hinge point of the flip door to the lower edge of the lift door. It is the distance from the projection of the lifting door on the conveyor belt to the outlet of the flat conveyor belt. is the feeding speed of the current feeding device, is the correction parameter for the impact of the material flow on the flip door, The flip angle of the current flip door; Compare the calculated flow height The opening height of the current lift door , get the material flow height output value ; In response to ,but ; In response to ,but .

8. The method for controlling in-situ hot regeneration of new materials according to claim 7, characterized in that: The S32 includes: Calculate the filling rate of the first material gate within the preset period of time, the expression is: ； In the formula, is the filling rate of the first material gate, A sampling sequence of material flow height output values ​​within a preset time period; Calculate the filling rate of the second material gate within the preset period of time, the expression is: ； In the formula, is the filling rate of the second material gate, is the sampling sequence of the opening height of the lifting door within a preset period of time, It is the correction parameter of the material gate filling rate; In response to , it is determined that the filling rate of the material gate is sufficient; In response to , it is determined that the filling rate of the material gate is insufficient; The S33 includes: In response to , it is determined that the new asphalt material is highly sufficient; In response to , it is determined that the height of the new asphalt material is insufficient; In the formula, is the pile height of new asphalt in the current hopper, Correction parameter for the material pile height in the hopper.

9. The method for controlling in-situ hot regeneration of new materials according to claim 5, characterized in that: The S4 includes: In response to the filling rate of the material gate being sufficient or the height of the new asphalt material being insufficient, the opening height of the current lifting gate is kept unchanged, and a material feeding speed compensation value is calculated to compensate for the material feeding speed of the current feeding device; In response to the insufficient filling rate of the material gate and the sufficient height of the new asphalt material, indicating that the material pile has poor fluidity, the feeding speed of the current feeding device is maintained unchanged, and the opening height compensation value is calculated to compensate for the current opening height of the lifting door; Among them, the calculation formula of the feeding speed compensation value is: ； The calculation formula for the opening height compensation value is: ； In the formula, is the mass of asphalt delivered within the preset period, and the calculation formula is: ； In the formula, is the feeding speed of the current feeding device, is the width of the lift door, is the output value of material flow height, is the density of asphalt.

10. The method for controlling in-situ hot regeneration of new materials according to claim 5, characterized in that: The system further includes: a heating device connected to the controller, and before S1, further includes: turning on the heating device to heat the flip door to a preset temperature; And / or, the system further includes: an early warning device connected to the controller, and the S4 further includes: in response to insufficient height of the new asphalt material or insufficient filling rate of the material gate, driving the early warning device to sound an alarm.

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