Small virgin and large recycled asphalt mixing control method, system, equipment and medium

Abstract

The present invention provides a small virgin and large recycled asphalt mixture stirring control method, system, equipment and medium, which relate to the field of asphalt technology. The control method transports the recycled coarse material into the regeneration drying inner cylinder, and transports the recycled fine material into the regeneration drying interlayer, isolates the two, and directly heats the recycled coarse material through the regeneration heater, and heats the recycled fine material through the hot regeneration drying inner cylinder wall, thereby avoiding the asphalt in the recycled fine material from sticking to the cylinder wall of the regeneration drying inner cylinder, resulting in the recycled aggregate not being heated thoroughly, and the risk of fire or even explosion caused by excessive exhaust gas. In addition, by reducing the temperature of the heated recycled fine material, the asphalt is avoided from being in a viscous state, and the viscosity of the recycled fine material is further reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of asphalt, and in particular to a method, system, equipment and medium for controlling stirring of small virgin and large recycled asphalt mixture. Background Art

[0002] With the rapid development of transportation infrastructure construction, the demand for asphalt mixtures has increased year by year. However, traditional asphalt mixing equipment mainly relies on virgin materials, and the proportion of waste asphalt materials added is low, resulting in low utilization rate, which not only causes resource waste, but also increases production costs and environmental pollution. In order to avoid resource waste, the proportion of recycled materials should be increased.

[0003] Recycled aggregate includes recycled coarse aggregate and recycled fine aggregate. The recycled fine aggregate contains asphalt. The existing technology is to transport the recycled aggregate to a regeneration drying drum and heat it with a heater. However, when the proportion of recycled aggregate increases, the proportion of recycled fine aggregate also increases accordingly, that is, the asphalt content in the recycled fine aggregate also increases. When the heater is heated, the viscosity of the asphalt increases and it will stick to the wall of the regeneration drying drum, resulting in a reduction in the diameter of the regeneration drying drum, and a smaller range of tumbling of the recycled aggregate in the regeneration drying drum, resulting in incomplete heating of the recycled aggregate, while the heat supply of the heater remains unchanged, resulting in excessively high exhaust gas temperature, which can lead to major accidents such as fire or even explosion. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, the present invention aims to provide a method, system, equipment and medium for controlling the mixing of small virgin and large recycled asphalt mixtures.

[0005] In a first aspect, the present invention provides a method for controlling the mixing of small virgin and large recycled asphalt mixtures, comprising the following steps:

[0006] S100. Controlling the conveying of recycled coarse material into the regeneration drying inner cylinder, and conveying recycled fine material into the regeneration drying interlayer, wherein the recycled fine material includes recycled asphalt, the regeneration drying inner cylinder is provided with a regeneration drying outer cylinder, and the regeneration drying interlayer is formed between the regeneration drying outer cylinder and the regeneration drying inner cylinder;

[0007] S200. Controlling the heating of the regenerated coarse material and the regenerated fine material to form a regenerated dry coarse material and a regenerated dry fine material, respectively, wherein the regenerated coarse material is directly heated by a regeneration heater, and the regenerated fine material is heated by the heated wall of the regenerated dry inner cylinder through heat conduction;

[0008] S300. Control the conveying of raw aggregate into the raw drying drum;

[0009] S400. Controlling heating of the primary aggregate to form primary dry aggregate;

[0010] S500. Control the amount of the regenerated dry fine material, the regenerated dry coarse material and the primary dry aggregate to be transported to the stirring pot;

[0011] S600. Controlling the amount of asphalt delivered to the stirring pot;

[0012] S700. Control the mixing of the recycled dry fine material, the recycled dry coarse material, the virgin dry aggregate and the asphalt to form the asphalt mixture.

[0013] According to the technical solution of the present invention, the following steps are also included after step S100:

[0014] S110. Controlling the conveying of new aggregate into the regenerated drying interlayer, wherein the new aggregate and the regenerated fine material are mixed to form a regenerated mixture;

[0015] S120. Controlling the heating of the regenerated coarse material and the regenerated mixed material according to the temperature control strategy to form a regenerated dry coarse material and a regenerated dry mixed material, respectively, wherein the regenerated coarse material is directly heated by the regeneration heater, and the regenerated mixed material is heated by the heated cylinder wall of the regeneration dry inner cylinder through heat conduction;

[0016] S130. Control the conveying of raw aggregate into the raw drying drum;

[0017] S140. Controlling heating of the primary aggregate to form primary dry aggregate;

[0018] S150. Control the amount of the regenerated dry mixed material, the regenerated dry coarse material and the primary dry aggregate to be transported to the mixing pot;

[0019] S160. Controlling the amount of asphalt delivered to the stirring pot;

[0020] S170. Control the stirring of the recycled dry mixture, the recycled dry coarse material, the virgin dry aggregate and the asphalt to form the asphalt mixture.

[0021] According to the technical solution of the present invention, the temperature control strategy includes the following steps:

[0022] S01. Setting a first temperature threshold and a second temperature threshold, wherein the first temperature threshold is a temperature at which the recycled mixture can be heated to meet production requirements, and the second temperature threshold is a temperature at which the asphalt in the recycled mixture can be in a viscous state, wherein the second temperature threshold is greater than the first temperature threshold;

[0023] S02. Controlling heating of the recycled coarse material and the recycled mixture;

[0024] S03 real-time acquisition of the regeneration drying outer cylinder outlet side of the regeneration drying mixture temperature, the real-time mixing temperature;

[0025] S04. Compare the real-time mixing temperature with the first temperature threshold and the second temperature threshold to obtain a first comparison result, a second comparison result, or a third comparison result, wherein the first comparison result is that the real-time mixing temperature is less than the first temperature threshold, the second comparison result is that the real-time mixing temperature is greater than or equal to the first temperature threshold and less than the second temperature threshold, and the third comparison result is that the real-time mixing temperature is greater than or equal to the second temperature threshold;

[0026] S05. When the first comparison result is obtained, the flame size of the heater is controlled to increase until the second comparison result is obtained;

[0027] S06. When the second comparison result is obtained, controlling the flame size of the heater to be maintained;

[0028] S07. When the third comparison result is obtained, control the flame size of the heater to be reduced until the second comparison result is obtained.

[0029] According to the technical solution of the present invention, step S120 includes the following steps:

[0030] S121. Control the regeneration drying outer cylinder to drive the regeneration drying inner cylinder to rotate, drive the regeneration coarse material and the regeneration mixed material to roll, form regeneration coarse material dust in the regeneration drying inner cylinder, and form regeneration mixed material dust in the regeneration drying interlayer;

[0031] S122. Controlling and collecting the large particles of the regenerated coarse dust and the regenerated mixed dust to obtain primary regenerated dust;

[0032] S123. Controlling and collecting small particles of regeneration dust in the primary regeneration dust to obtain secondary regeneration dust;

[0033] S124. Control the catalytic combustion of the secondary regeneration dust to obtain regenerated environmentally friendly flue gas.

[0034] According to the technical solution of the present invention, the following steps are also included after step S123:

[0035] S1231. Controlling the adsorption of dust in the secondary regenerated dust to obtain regenerated adsorbed dust;

[0036] S1232. Control the catalytic combustion of the regenerated adsorbed dust to obtain regenerated environmentally friendly flue gas.

[0037] According to the technical solution of the present invention, step S140 includes the following steps:

[0038] S141. Control the rotation of the primary drying drum to drive the primary aggregate to roll, thereby forming primary dust in the primary drying drum;

[0039] S142. Controlling and collecting large particles of primary dust in the primary dust to obtain primary primary dust;

[0040] S143. Control and collect small particles of primary dust in the first-level primary dust to obtain primary environmentally friendly flue gas.

[0041] According to the technical solution of the present invention, the following steps are also included after step S150:

[0042] S151. Control and meter the small-particle primary dust, the large-particle regenerated dust, and the small-particle regenerated dust;

[0043] S152. Control the delivery of the large-particle primary dust, the small-particle primary dust, the large-particle regenerated dust, and the small-particle regenerated dust into the stirring pot in quantity.

[0044] S153. Control the amount of asphalt delivered to the stirring pot;

[0045] S154. Control the stirring of the recycled dry mixture, the recycled dry coarse material, the original dry aggregate, the small-particle original dust, the large-particle recycled dust, the small-particle recycled dust and the asphalt to form the asphalt mixture.

[0046] In a second aspect, the present invention provides a small virgin and large recycled asphalt mixture stirring control system, which is used to implement the small virgin and large recycled asphalt mixture stirring control method as described above, and the control system includes:

[0047] A first control module, the first control module is configured to control the conveying of recycled coarse material into the regeneration drying inner cylinder, and conveying recycled fine material into the regeneration drying interlayer, wherein the recycled fine material includes recycled asphalt, the regeneration drying inner cylinder is provided with a regeneration drying outer cylinder, and the regeneration drying interlayer is formed between the regeneration drying outer cylinder and the regeneration drying inner cylinder;

[0048] a second control module, the second control module being configured to control heating of the regenerated coarse material and the regenerated fine material to form a regenerated dry coarse material and a regenerated dry fine material, respectively, wherein the regenerated coarse material is directly heated by a regeneration heater, and the regenerated fine material is heated by heat conduction through the heated cylinder wall of the regeneration dry inner cylinder;

[0049] A third control module, the third control module is configured to control the conveying of the raw aggregate into the raw drying drum;

[0050] a fourth control module, the fourth control module being configured to control heating of the raw aggregate to form raw dry aggregate;

[0051] a fifth control module, the fifth control module being configured to control the delivery of the regenerated dry fine material, the regenerated dry coarse material and the primary dry aggregate into the stirring pot in quantity;

[0052] A sixth control module, the sixth control module is configured to control the delivery of asphalt into the mixing pot according to the amount;

[0053] A seventh control module is configured to control the mixing of the recycled dry fine material, the recycled dry coarse material, the virgin dry aggregate and the asphalt to form the asphalt mixture.

[0054] In the third aspect, the present invention provides a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the small virgin and large recycled asphalt mixture mixing control method as described above when executing the computer program.

[0055] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the small virgin and large recycled asphalt mixture mixing control method as described above are implemented.

[0056] In summary, the present invention proposes a stirring control method for a small-virgin and large-recycled asphalt mixture, by conveying the recycled coarse material into the regeneration drying inner cylinder, and conveying the recycled fine material into the regeneration drying interlayer, the two are isolated, and the recycled coarse material is directly heated by the regeneration heater, and the recycled fine material is heated by the hot wall of the regeneration drying inner cylinder, thereby avoiding the asphalt in the recycled fine material from sticking to the wall of the regeneration drying inner cylinder, resulting in the recycled aggregate not being heated thoroughly, and the risk of fire or even explosion caused by excessive exhaust gas. In addition, by reducing the temperature of the heated recycled fine material, the asphalt is avoided from being in a viscous state, thereby further reducing the viscosity of the recycled fine material. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 A flow chart of a small virgin and large recycled asphalt mixture stirring control method provided by the present invention;

[0058] Figure 2 A schematic diagram of the structure of a small virgin and large recycled asphalt mixing control device provided by the present invention;

[0059] Figure 3 A schematic diagram of the structure of the regenerated drying drum provided by the present invention;

[0060] Figure 4 for Figure 3Cross-sectional view of AA in the middle;

[0061] Figure 5 for Figure 3 Cross-section of the middle BB;

[0062] Figure 6 for Figure 3 Cross-section of the middle CC;

[0063] Figure 7 A schematic diagram of the structure of the terminal device provided by the present invention.

[0064] The reference numerals in the figure are as follows:

[0065] 100, regeneration drying drum; 110, regeneration drying outer cylinder; 111, regeneration mixing material inlet; 120, regeneration drying inner cylinder; 121, regeneration coarse material inlet; 130, regeneration drying interlayer; 140, connecting frame; 141, radiation part; 142, reinforcement part; 150, lifting plate group; 151, lifting plate part; 152, rake teeth; 153, cleaning part; 160, anti-wear component; 161, anti-wear part; 162, inclined plate; 163, first space;

[0066] 200, regeneration transmission mechanism; 211, coarse material conveyor; 212, coarse material elevator; 213, regeneration coarse material bin; 221, mixing material conveyor; 222, mixing material elevator; 223, new aggregate bin; 224, regeneration fine material bin;

[0067] 300, regeneration heater;

[0068] 410, transmission assembly; 411, steel ring; 412, transmission roller; 413, bearing; 414, elastic steel sheet; 420, drive assembly;

[0069] 500, regeneration dust removal mechanism; 510, regeneration flue; 520, primary regeneration dust removal assembly; 530, secondary regeneration dust removal assembly; 540, adsorption assembly; 550, catalytic combustion assembly; 560, regeneration chimney; 570, regeneration induced draft fan;

[0070] 600, primary drying drum; 610, primary heater; 620, primary aggregate inlet;

[0071] 800, original transmission mechanism; 810, original belt conveyor; 820, original aggregate bin; 830, original dust removal mechanism; 831, original flue; 832, primary original dust removal component; 833, secondary original dust removal component; 834, original chimney; 835, original induced draft fan;

[0072] 900, aggregate elevator; 910, vibration assembly; 920, aggregate scale; 930, mixing pot; 940, recovery powder tank; 950, recovery powder spiral conveying assembly; 960, new powder tank; 970, regeneration scale; 980, asphalt conveying mechanism; 981, asphalt tank; 982, heating pipe; 983, thermal oil furnace; 984, asphalt upstairs pump; 985, asphalt scale;

[0073] 700. Computer system; 701. CPU; 702. ROM; 703. RAM; 704. Bus; 705. I / O interface; 706. Input part; 707. Output part; 708. Storage part; 709. Communication part; 710. Drive; 711. Removable media. DETAILED DESCRIPTION

[0074] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0075] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0076] Example 1

[0077] Traditional asphalt mixing equipment mainly relies on virgin materials, and the proportion of waste asphalt materials added is relatively low. This process is called large virgin and small regeneration, and the regeneration ratio is 30-40% at this time. In order to avoid waste of resources, the present invention increases the proportion of recycled aggregates. This process is called small virgin and large regeneration, and the regeneration ratio is not less than 60%. As mentioned in the technical problem in the background technology, the present invention proposes a small virgin and large regeneration asphalt mixing control device, the control device includes:

[0078] The regeneration drying drum 100 comprises a regeneration drying inner cylinder 120, and a regeneration drying outer cylinder 110 is disposed on the outer surface of the regeneration drying inner cylinder 120, and a regeneration drying interlayer 130 is formed between the regeneration drying inner cylinder 120 and the regeneration drying outer cylinder 110; wherein the regeneration drying inner cylinder 120 and the regeneration drying outer cylinder 110 are coaxially arranged and tilted, such as Figure 2 and Figure 3 As shown, the left side is higher and the right side is lower.

[0079] The two ends of the regeneration drying inner cylinder 120 and the regeneration drying outer cylinder 110 are fixedly connected by a connecting frame 140, and the connecting frame 140 includes a radiation part 141 and a reinforcement part 142, and the radiation part 141 includes a plurality of connecting rods radiating outward from the end surface of the regeneration drying inner cylinder 120 to the end surface of the regeneration drying outer cylinder 110, and the reinforcement part 142 includes a reinforcement ring for connecting all the connecting rods; a closing plate is provided on the outer side of the left side of the connecting frame 140, and the closing plate is used to close the left side of the regeneration drying outer cylinder 110 and the regeneration drying inner cylinder 120, and a regeneration coarse material inlet 121 connected to the regeneration drying inner cylinder 120 is provided on the closing plate, and a regeneration mixed material inlet 111 connected to the regeneration drying interlayer 130 is provided on the upper left of the regeneration drying outer cylinder 110;

[0080] A regeneration transmission mechanism 200, the regeneration transmission mechanism 200 includes a regeneration coarse material transmission component and a regeneration mixing material transmission component, the regeneration coarse material transmission component includes a coarse material conveyor 211 and a coarse material elevator 212, the inlet end of the coarse material elevator 212 is connected with the outlet end of the coarse material conveyor 211, and the outlet end of the coarse material elevator 212 is connected with the regeneration coarse material inlet 121; a regeneration coarse material bin 213 is provided on one side of the coarse material conveyor 211, and the regeneration coarse material bin 213 is used to store regeneration coarse material; the regeneration coarse material is poured onto the coarse material conveyor 211, and transported to the regeneration drying inner cylinder 120 through the coarse material elevator 212.

[0081] The recycled mixed material transmission assembly includes a mixed material conveyor 221 and a mixed material elevator 222. The inlet end of the mixed material elevator 222 is connected to the outlet end of the mixed material conveyor 221, and the outlet end of the mixed material elevator 222 is connected to the recycled mixed material inlet 111. A recycled fine material bin 224 and a new aggregate bin 223 are provided on one side of the mixed material conveyor 221. The recycled fine material bin 224 is used to store recycled fine material, which includes asphalt, and the new aggregate bin 223 is used to store new aggregate, which is gravel and some dust. The recycled fine material and the new aggregate in the recycled fine material bin 224 and the new aggregate bin 223 are poured onto the mixed material conveyor 221, and transported to the recycled drying interlayer 130 through the mixed material elevator 222 to form a recycled mixed material.

[0082] The regeneration heater 300 is arranged on the left side of the regeneration drying drum 100, and heats the air in the regeneration drying inner cylinder 120 by flame, and then heats the regenerated coarse material and the cylinder wall of the regeneration drying inner cylinder 120 by hot air; the heated cylinder wall of the regeneration drying inner cylinder 120 heats the regenerated mixed material in the regeneration drying interlayer 130 by heat conduction.

[0083] Regenerative drive mechanisms, such as Figure 3 As shown, the regeneration drive mechanism is arranged outside the regeneration drying outer cylinder 110, and is used to drive the regeneration drying outer cylinder 110 to drive the regeneration drying inner cylinder 120 to rotate at high speed, including a transmission component 410 and a drive component 420, the transmission component 410 includes two steel rings 411 sleeved on the outer wall of the regeneration drying outer cylinder 110, and the two steel rings 411 are distributed along the axial direction of the regeneration drying outer cylinder 110; the transmission component 410 also includes a group of transmission rollers 412 corresponding to each of the steel rings 411, and each of the transmission rollers 412 groups includes two transmission rollers 412 arranged on both sides of the extension line of the axis of the regeneration drying outer cylinder 110, and each of the steel rings 411 is tangent to the two corresponding transmission rollers 412; the drive component 420 includes a drive motor for driving the transmission rollers 412 to rotate. A base is provided below the regeneration drying drum 100, the drive motor is fixed to the base, bearings 413 are provided on the left and right sides of each transmission roller 412, the outer ring of the bearing 413 is fixedly connected to the base, the transmission roller 412 passes through two bearings 413, the outer wall of the transmission roller 412 is fixedly connected to the inner ring of the bearing 413, and the outer ring of the bearing 413 is fixedly connected to the base.

[0084] In a preferred embodiment, there is a first gap between the inner wall of the steel ring 411 and the outer wall of the regeneration drying outer cylinder 110, and a plurality of elastic steel sheets 414 are arranged between the first gaps, one end of the elastic steel sheet 414 is connected to the outer wall of the regeneration drying outer cylinder 110, and the other end is connected to the inner wall of the steel ring 411. A slight deformation may occur under the action of external force. The regeneration drying outer cylinder 110 and the regeneration drying inner cylinder 120 are supported by the elastic steel sheet 414. In addition, since the temperature of the regeneration drying outer cylinder 110 is high during the heating process and the temperature of the regeneration drying outer cylinder 110 is low when not in production, if the steel ring 411 is tightly clamped on the outer wall of the regeneration drying outer cylinder 110, the regeneration drying outer cylinder 110 may crack due to the principle of thermal expansion and contraction. Therefore, the steel ring 411 is connected to the regeneration drying outer cylinder 110 through the elastic steel sheet 414, so as to drive the regeneration drying outer cylinder 110 to rotate and avoid the regeneration drying outer cylinder 110 from cracking.

[0085] In a preferred embodiment, the regeneration drying inner cylinder 120 is tapered at the end close to the regeneration heater 300. The regeneration coarse material inlet 121 is arranged on the left side of the regeneration drying inner cylinder 120. By setting the left side of the regeneration drying inner cylinder 120 as a tapered shape, it plays a role of guiding the material, making it easier to put the regeneration coarse material into the regeneration drying inner cylinder 120.

[0086] In a preferred embodiment, a plurality of pick-up plate groups 150 are arranged in the regeneration drying inner cylinder 120 and the regeneration drying interlayer 130 along the axial direction thereof, and each of the pick-up plate groups 150 includes a plurality of pick-up plate portions 151 distributed in an array in the circumferential direction, and the pick-up plate portions 151 of two adjacent pick-up plate groups 150 are staggered. Each of the pick-up plate portions 151 includes a plurality of rake teeth 152 distributed along the axial direction, and one end of each of the rake teeth 152 is connected to the inner wall of the regeneration drying inner cylinder 120 or the inner wall of the regeneration drying outer cylinder 110, and the other end is bent in the same direction as the rotation direction of the regeneration drying outer cylinder 110.

[0087] like Figure 4 As shown, a plurality of mounting rings are provided on the inner wall of the regeneration drying inner cylinder 120 or the regeneration drying outer cylinder 110 along its axial direction, and each of the rake teeth 152 includes a vertical portion fixed on the mounting ring at one end, a transition portion connected to the end of the vertical portion away from the mounting ring, and a curved portion connected to the end of the transition portion away from the vertical portion, the vertical portion is perpendicular to the tangent direction of the mounting ring, and the curved portion and the transition portion are both bent in the same direction as the rotation direction of the regeneration drying outer cylinder 110. Therefore, when the regeneration driving mechanism drives the regeneration drying outer cylinder 110 and the regeneration drying inner cylinder 120 to rotate, the rake teeth 152 will lift up the regenerated coarse material or the regenerated mixed material to form a material curtain, thereby improving the efficiency of heating the regenerated coarse material and the regenerated mixed material, and the bending curvature of the transition portion is smaller than the bending curvature of the bending portion.

[0088] In a preferred embodiment, the end of the rake teeth 152 away from the inner wall of the regeneration dryer inner cylinder 120 or the regeneration dryer outer cylinder 110 is a free end, and the free end is provided with a cleaning piece 153, and the cleaning piece 153 is used to clean the side walls of the rake teeth 152, the outer wall and inner wall of the regeneration dryer inner cylinder 120, and the inner wall of the regeneration dryer outer cylinder 110.

[0089] Among them, Figure 5 As shown, the free end is the end of the transition portion away from the bending portion. During the heating process, the regenerated coarse material will stick to the inner wall of the regenerated drying inner cylinder 120 and the side wall of the rake teeth 152 provided on the regenerated drying inner cylinder 120, and the regenerated mixed material will stick to the outer wall of the regenerated drying inner cylinder 120, the inner wall of the regenerated drying outer cylinder 110, and the side wall of the rake teeth 152 provided on the regenerated drying interlayer 130. The cleaning member 153 can increase the lifting rate of the regenerated coarse material or the regenerated mixed material, so that the heating is more sufficient.

[0090] In a preferred embodiment, the cleaning element 153 includes a cleaning chain having one end connected to the free end, and the length of the cleaning chain arranged in the regeneration and drying inner cylinder 120 is greater than the distance between the free end and the inner wall of the regeneration and drying inner cylinder 120, and the length of the cleaning chain arranged in the regeneration and drying interlayer 130 is greater than the distance from the free end to the outer wall of the regeneration and drying inner cylinder 120, and is greater than the distance from the free end to the inner wall of the regeneration and drying outer cylinder 110.

[0091] Optionally, the cleaning chain can be made by connecting a plurality of steel balls in series, or by interlocking a plurality of steel rings. The cleaning chain has only one end fixed, so when the regeneration drying inner cylinder 120 and the regeneration drying outer cylinder 110 rotate, the cleaning chain will sag due to gravity, so during the rolling process, the cleaning chain placed on the top is suspended, and because the cleaning chain is long, the cleaning chain below the regeneration drying inner cylinder 120 can knock the inner wall of the regeneration drying inner cylinder 120 and the side wall of the rake teeth 152, the cleaning chain above the regeneration drying interlayer 130 can knock the outer wall of the regeneration drying inner cylinder 120, and the cleaning chain below the regeneration drying interlayer 130 can knock the inner wall of the regeneration drying outer cylinder 110.

[0092] In a preferred embodiment, an anti-wear component 160 is provided on the side of the regeneration drying inner cylinder 120 close to the regeneration heater 300 , and the anti-wear component 160 is used to prevent the regenerated coarse material from rubbing against the inner wall of the regeneration drying inner cylinder 120 .

[0093] Among them, Figure 6 As shown, the anti-wear component 160 is arranged on the side of the regeneration drying inner cylinder 120 close to the regeneration coarse material inlet 121. The regeneration coarse material includes stones. The regeneration coarse material fed from the regeneration coarse material inlet 121 has not been lifted up, so it will cause friction to the inner wall of the regeneration drying inner cylinder 120. In addition, the regeneration heater 300 is close to the regeneration coarse material inlet 121. If the regeneration coarse material close to the regeneration coarse material inlet 121 is lifted up, the regeneration heater 300 will ignite the regeneration coarse material. Therefore, the anti-wear component 160 also prevents the regeneration coarse material from being ignited.

[0094] In a preferred embodiment, the anti-wear assembly 160 includes a plurality of anti-wear portions 161 arranged axially along the regeneration drying inner cylinder 120, each of the anti-wear portions 161 includes a plurality of anti-wear parts distributed in a circumferential array, and a first space 163 is formed between each of the anti-wear parts and the inner wall of the regeneration drying inner cylinder 120, and the cross-section of the first space 163 is fan-shaped.

[0095] Please refer to Figure 6As shown, optionally, the anti-wear assembly 160 has a total length of 1 meter and includes three circles of the anti-wear portion 161. Each of the anti-wear parts includes two inclined plates 162. One side of the two inclined plates 162 is connected to each other, and the other side is fixed to the inner wall of the regeneration drying inner cylinder 120. A V-shaped channel is formed between two adjacent anti-wear parts, which has a certain material guiding effect.

[0096] It also includes a regeneration dust removal mechanism 500, which includes: a regeneration flue 510, a first-level regeneration dust removal component 520, a second-level regeneration dust removal component 530, an adsorption component 540, a catalytic combustion component 550, a regeneration chimney 560 and a regeneration induced draft fan 570 in sequence; the right ends of the regeneration drying inner cylinder 120 and the regeneration drying outer cylinder 110 extend into the regeneration flue 510. A regeneration mixing outlet is provided at the bottom right side of the regeneration drying outer cylinder 110, and a regeneration drying mixing bin is provided at the regeneration mixing outlet. A regeneration coarse material outlet is provided at the bottom of the regeneration flue 510, and a regeneration drying coarse material bin is provided at the regeneration coarse material outlet. Optionally, the first-level regeneration dust removal component 520 is a gravity dust removal device; the second-level regeneration dust removal component 530 is a bag filter, and the adsorption component 540 is adsorption carbon.

[0097] Also includes:

[0098] The primary drying drum 600 is also tilted, with a primary heater 610 at its right end, a primary aggregate inlet 620 at its left bottom, and a primary aggregate outlet at its right bottom; the primary drying drum 600 is also provided with the lifting plate group 150, which is used to lift the primary aggregate placed therein when the primary drying drum 600 rotates at a high speed to form a material curtain, thereby improving the efficiency of heating the primary aggregate.

[0099] The primary dust removal mechanism 830 includes a connected primary flue 831, a first-level primary dust removal component 832, a second-level primary dust removal component 833, a primary chimney 834, and a primary induced draft fan 835 in sequence; the primary flue 831 is connected to the end of the primary drying drum 600 away from the primary heater 610.

[0100] The primary transmission mechanism 800 includes a primary belt conveyor 810, the outlet end of the primary belt conveyor 810 is connected to the primary aggregate inlet 620, and a primary aggregate bin 820 is provided on one side of the primary belt conveyor 810. The primary aggregate bin 820 is used to store primary aggregate, and the primary aggregate is the same as the new aggregate.

[0101] The primary driving mechanism is used to drive the primary drying drum 600 to rotate. The structure of the primary driving mechanism is the same as that of the regenerative driving mechanism, and will not be described in detail here.

[0102] Since the concept of the present invention is small primary and large regeneration, the power of the primary drive mechanism and the primary dust removal mechanism 830 are both smaller than the regeneration drive mechanism and the regeneration dust removal mechanism 500. Compared with large primary and small regeneration, the power of the primary drive mechanism and the primary dust removal mechanism 830 is reduced, and the cost is reduced.

[0103] Also includes:

[0104] The aggregate elevator 900 includes a first inlet end and a first outlet end, and the first outlet end is also provided with a vibration component 910 with a vibration space, an aggregate scale 920, and a stirring pot 930 in sequence.

[0105] A powder elevator comprises a second inlet end and a second outlet end, wherein the second outlet end is also provided with a buffer bin and a powder scale in sequence, and the outlet end of the powder scale is connected with a metering pipeline, which is placed above the stirring pot 930 away from the powder scale end, and a hair dryer is provided on one side of the metering pipeline, which can blow the dust in the metering pipeline into the stirring pot 930.

[0106] A recovery powder tank 940 is disposed below the buffer bin, and a recovery powder spiral conveying assembly 950 is disposed below the recovery powder tank 940 . The recovery powder spiral conveying assembly 950 is connected to the second inlet end away from the recovery powder tank 940 .

[0107] A new powder tank 960 is used to store new aggregates, and the bottom of the new powder tank 960 is connected to the powder scale.

[0108] The regeneration scale 970 is disposed below the regeneration dry mixing bin and the regeneration dry coarse material bin, and the other end of the regeneration scale 970 is placed above the stirring pot 930 .

[0109] It also includes an asphalt conveying mechanism 980, which includes a plurality of asphalt tanks 981. Asphalt is injected into each of the asphalt tanks 981 through an asphalt injection pump. A heating pipe 982 is provided in the asphalt tank 981. The heating pipe 982 is heated by conveying hot oil into the heating pipe 982 through the thermal oil furnace 983. The asphalt in the asphalt tank 981 is heated by the heating pipe 982. The asphalt in the asphalt tank 981 is conveyed to the asphalt scale 985 through an asphalt upstairs pump 984, and is measured by the asphalt scale 985 and then conveyed to the mixing pot 930.

[0110] Example 2

[0111] Based on Example 1, the present invention proposes a small virgin and large recycled asphalt mixing control method, comprising the following steps:

[0112] S100. Controlling the conveying of the regenerated coarse material into the regenerated drying inner cylinder 120, and conveying the regenerated fine material into the regenerated drying interlayer 130, wherein the regenerated fine material includes regenerated asphalt, the regenerated drying inner cylinder 120 is provided with a regenerated drying outer cylinder 110, and the regenerated drying interlayer 130 is formed between the regenerated drying outer cylinder 110 and the regenerated drying inner cylinder 120;

[0113] The regenerated coarse material in the regenerated coarse material bin 213 is transported to the regenerated drying inner cylinder 120 through the regenerated coarse material transport component, and the regenerated fine material is transported to the regenerated drying interlayer 130 through the regenerated mixed material transport component;

[0114] S200. Controlling the heating of the regenerated coarse material and the regenerated fine material to form a regenerated dry coarse material and a regenerated dry fine material, respectively, wherein the regenerated coarse material is directly heated by the regeneration heater 300, and the regenerated fine material is heated by the heated cylinder wall of the regeneration dry inner cylinder 120 through heat conduction;

[0115] The air in the regeneration drying inner cylinder 120 is heated by the flame of the regeneration heater 300, and the regeneration coarse material and the cylinder wall of the regeneration drying inner cylinder 120 are heated by the hot air. The heated regeneration coarse material is the regeneration drying coarse material. At the same time, the heated cylinder wall of the regeneration drying inner cylinder 120 heats the regeneration fine material. Generally, the temperature of the flame of the regeneration heater 300 is 1000°, the temperature of the regeneration drying coarse material after heating is 150-160°, the temperature of the cylinder wall of the regeneration drying inner cylinder 120 after heating is 300-400°, the temperature of the regeneration drying fine material after heating can reach 100-110°, and the regeneration drying fine material is the most viscous at 120-130°, so the viscosity of the regeneration coarse material can be reduced, and the viscosity of the regeneration fine material can also be reduced.

[0116] S300 controls the conveying of raw aggregate to the raw drying drum 600;

[0117] The raw aggregate in the raw aggregate bin 820 is poured onto the raw belt conveyor 810 , and the raw aggregate is transported to the raw drying drum 600 through the raw belt conveyor 810 .

[0118] S400. Controlling heating of the primary aggregate to form primary dry aggregate;

[0119] The principle of heating the primary aggregate by the primary heater 610 is the same as the principle of heating the recycled coarse material, which will not be repeated here.

[0120] S500. Control the amount of the regenerated dry fine material, the regenerated dry coarse material and the primary dry aggregate to be transported to the stirring pot 930;

[0121] Among them, since the original drying drum 600 is set at an angle, the original aggregate outlet is connected to the first inlet end of the aggregate elevator 900, and the heated regenerated dry coarse material will flow to the first inlet end through the original aggregate outlet, and the original dry aggregate will be transported to the vibration space of the vibration component 910 through the aggregate elevator 900, and the original dry aggregate will be screened into multiple specifications by the vibration component 910 and placed in different screening channels. Each of the screening channels has a switch valve, and the original dry aggregate in one or more of the screening channels is controlled by the switch valve to be transported to the aggregate scale 920, and then transported to the stirring pot 930 after being measured by the aggregate scale 920.

[0122] When the new aggregate is not transported to the regenerated drying interlayer 130, only the regenerated fine material is in the regenerated drying interlayer 130, and the heated regenerated fine material forms regenerated dry fine material. Since the regenerated drying drum 100 is tilted, the regenerated dry coarse powder will flow from the regenerated coarse material outlet to the regenerated dry coarse material bin, and the regenerated dry fine material will flow from the regenerated mixing material outlet to the regenerated dry mixing bin; a switch valve is provided at the bottom of the regenerated dry mixing bin and the regenerated dry coarse material bin, and the regenerated dry coarse material and / or the regenerated dry fine material are transported into the regeneration scale 970 by opening the switch valve, and are transported to the stirring pot 930 after being measured.

[0123] S600. Controlling the amount of asphalt delivered to the stirring pot 930;

[0124] The asphalt conveying mechanism 980 is used to convey a fixed amount of asphalt into the stirring pot 930, which is a prior art and will not be described in detail here.

[0125] S700. Control the mixing of the recycled dry fine material, the recycled dry coarse material, the virgin dry aggregate and the asphalt to form the asphalt mixture.

[0126] The present invention separates the regenerated coarse material from the regenerated fine material, thereby avoiding the problem of asphalt sticking to the inner wall of the regenerated drying inner cylinder 120, resulting in the regenerated coarse material not being heated thoroughly. In addition, the regenerated fine material is heated by the cylinder wall of the regenerated drying inner cylinder 120. Compared with the temperature of the regeneration heater 300, this temperature is lower, so that the asphalt in the regenerated fine material will not reach the most viscous state, thereby reducing the viscosity of the regenerated fine material and improving the utilization rate of the regenerated fine material.

[0127] In a preferred embodiment, the following steps are also included after step S100:

[0128] S110. Controlling the conveying of new aggregate into the regenerated drying interlayer 130, wherein the new aggregate and the regenerated fine material are mixed to form a regenerated mixture;

[0129] In order to further reduce the viscosity of the recycled fine material in the recycled drying interlayer 130, the new aggregate in the new aggregate bin 223 is also transported to the recycled drying interlayer 130 through the recycled mixture transmission component, and mixed with the recycled fine material to form the recycled mixture.

[0130] S120. Control the heating of the regenerated coarse material and the regenerated mixed material according to the temperature control strategy to form a regenerated dry coarse material and a regenerated dry mixed material, respectively, wherein the regenerated coarse material is directly heated by the regeneration heater 300, and the regenerated mixed material is heated by the heated cylinder wall of the regeneration drying inner cylinder 120 through heat conduction; wherein the temperature control strategy includes the following steps:

[0131] S01. Setting a first temperature threshold and a second temperature threshold, wherein the first temperature threshold is a temperature at which the recycled mixture can be heated to meet production requirements, and the second temperature threshold is a temperature at which the asphalt in the recycled mixture can be in a viscous state, wherein the second temperature threshold is greater than the first temperature threshold;

[0132] S02. Controlling heating of the recycled coarse material and the recycled mixture;

[0133] Wherein, the regenerated coarse material and the regenerated mixed material are heated by the regeneration heater 300;

[0134] S03 real-time acquisition of the regeneration drying outer cylinder 110 outlet side of the regeneration drying mixture temperature, the real-time mixing temperature;

[0135] The real-time mixing temperature is obtained outside the regeneration drying outer cylinder 110 by infrared temperature measurement.

[0136] S04. Compare the real-time mixing temperature with the first temperature threshold and the second temperature threshold to obtain a first comparison result, a second comparison result, or a third comparison result, wherein the first comparison result is that the real-time mixing temperature is less than the first temperature threshold, the second comparison result is that the real-time mixing temperature is greater than or equal to the first temperature threshold and less than the second temperature threshold, and the third comparison result is that the real-time mixing temperature is greater than or equal to the second temperature threshold;

[0137] S05. When the first comparison result is obtained, the flame size of the regeneration heater 300 is controlled to increase until the second comparison result is obtained; that is, the regeneration dry mixed material has not reached the required production temperature, and the flame size needs to be increased to increase the temperature of heating the regeneration coarse material, thereby increasing the cylinder wall temperature of the regeneration drying inner cylinder 120, and thereby increasing the temperature of heating the regeneration mixed material, so that the temperature of the regeneration dry mixed material meets the production requirements;

[0138] S06. When the second comparison result is obtained, the flame size of the regeneration heater 300 is controlled to be maintained; that is, at this time, the regeneration dry mixed material has met the required temperature of production, so there is no need to adjust the regeneration heater 300. It is particularly noted that because the temperature for heating the regeneration coarse material is higher than the temperature for heating the regeneration mixed material, the present invention sets that when the temperature of the regeneration dry mixed material meets the production requirement, the regeneration dry coarse material also meets the required temperature of production. In practice, the temperature of the regeneration dry coarse material is also obtained, and the regeneration heater 300 is adjusted so that both the regeneration dry coarse material and the regeneration dry mixed material can meet the actual production requirements.

[0139] S07. When the third comparison result is obtained, the flame size of the regeneration heater 300 is controlled to be reduced until the second comparison result is obtained. That is, when the regenerated dry mixed material has met the production demand, the temperature of the regenerated mixed material is still increased to make the asphalt in the regenerated mixed material in a viscous state. Therefore, in order to avoid this state, the temperature of the regeneration heater 300 should be controlled not to be too high.

[0140] S130. Controlling the conveying of raw aggregate to the raw drying drum 600;

[0141] S140. Controlling heating of the primary aggregate to form primary dry aggregate;

[0142] S150. Control the delivery of the recycled dry mixed material, recycled dry coarse material and the original dry aggregate into the stirring pot 930 according to the quantity.

[0143] That is, the original dry aggregate, the recycled dry coarse material, the recycled dry mixture and asphalt are transported to the mixing pot 930 according to the amount, and are stirred in the mixing pot 930 to form the asphalt mixture.

[0144] In a preferred embodiment, step S120 includes the following steps:

[0145] S121. Control the regeneration drying outer cylinder 110 to drive the regeneration drying inner cylinder 120 to rotate, drive the regeneration coarse material and the regeneration mixed material to roll, form regeneration coarse material dust in the regeneration drying inner cylinder 120, and form regeneration mixed material dust in the regeneration drying interlayer 130;

[0146] While heating, the regeneration drive mechanism drives the regeneration drying outer cylinder 110 to drive the regeneration drying inner cylinder 120 to rotate, and the regeneration drying inner cylinder 120 and the scooping plates in the regeneration drying interlayer 130 scoop up the regeneration coarse material and the regeneration mixed material to form a material curtain, thereby improving the heating efficiency;

[0147] S122. Controlling and collecting the large particles of the regenerated coarse dust and the regenerated mixed dust to obtain primary regenerated dust;

[0148] The regeneration induced draft fan 570 is turned on to pump the regeneration coarse material dust and the regeneration mixed material dust in the regeneration flue 510 into the regeneration flue 510, and pump them to the primary regeneration dust removal component 520. After dust removal by the primary regeneration dust removal component 520, the primary regeneration dust is formed.

[0149] S123. Controlling the collection of small particles of regeneration dust in the primary regeneration dust to obtain secondary regeneration dust; transporting the primary regeneration dust to the secondary regeneration dust removal assembly 530 through the regeneration induced draft fan 570 to obtain the secondary regeneration dust;

[0150] S124. Control the catalytic combustion of the secondary regeneration dust to obtain regenerated environmentally friendly flue gas.

[0151] Since the regenerated fine material contains asphalt, asphalt fume is formed after heating. The asphalt fume contains harmful chemicals and cannot be discharged into the atmosphere. The catalytic combustion component 550 causes a chemical reaction to form harmless regenerated environmentally friendly fume, and the regeneration induced draft component discharges the environmentally friendly fume into the atmosphere through the regeneration chimney 560.

[0152] In a preferred embodiment, step S123 further includes the following steps:

[0153] S1231. Controlling the adsorption of dust in the secondary regenerated dust to obtain regenerated adsorbed dust;

[0154] S1232. Control the catalytic combustion of the regenerated adsorbed dust to obtain regenerated environmentally friendly flue gas.

[0155] Among them, the service life of the catalytic combustion component 550 will be shortened after being contaminated by dust, and the dust removal rates of the first-level regeneration dust removal component 520 and the second-level regeneration dust removal component 530 cannot reach 100%. Therefore, in order to avoid dust contamination of the catalytic combustion component 550, the adsorption component 540 is added between the catalytic combustion component 550 and the second-level regeneration dust removal component 530 to adsorb dust in the second-level regeneration dust. After passing through the adsorption component 540, the second-level regeneration dust is called asphalt fume including only harmful fumes.

[0156] In a preferred embodiment, step S140 includes the following steps:

[0157] S141. Controlling the rotation of the primary drying drum 600 to drive the primary aggregate to tumble, thereby forming primary dust in the primary drying drum 600;

[0158] While heating, the primary drying drum 600 is driven to rotate by the primary driving mechanism, and the lifting plate in the primary drying drum 600 lifts the primary aggregate to form a material curtain, thereby improving the heating efficiency;

[0159] S142. Controlling and collecting large particles of primary dust in the primary dust to obtain primary primary dust;

[0160] The primary induced draft fan 835 is turned on to pump the primary dust in the primary flue 831 into the primary flue 831 and pump it to the primary primary dust removal component 832. After dust removal by the primary primary dust removal component 832, the primary primary dust is formed.

[0161] S143. Control and collect small particles of primary dust in the first-level primary dust to obtain primary environmentally friendly flue gas.

[0162] The primary primary dust is transported to the secondary primary dust removal component 833 through the primary induced draft fan 835 to obtain the primary environmentally friendly flue gas; since the primary aggregate is gravel and some dust, and does not include asphalt, it does not need to undergo catalytic combustion.

[0163] In a preferred embodiment, step S150 further includes the following steps:

[0164] S151. Control and meter the small-particle primary dust, the large-particle regenerated dust, and the small-particle regenerated dust;

[0165] Among them, the small-particle primary dust collected by the secondary primary dust removal device is transported to the inlet end of the powder elevator by a screw conveyor. In certain specific scenarios, the regeneration dust removal mechanism 500 is at a higher position, and the outlets of the primary regeneration dust removal component 520 and the secondary regeneration dust removal component 530 are connected to the second inlet end of the powder elevator through a pipeline. Through the action of gravity, the large-particle regeneration dust and the small-particle regeneration dust are transported to the powder elevator. The small-particle primary dust, the large-particle regeneration dust, and the small-particle regeneration dust are transported to the buffer bin by the powder elevator. A switch valve is provided at the bottom of the buffer bin. The dust is transported to the powder scale by opening the switch valve. When the weight measured by the powder scale reaches the set value, the switch valve is closed, thereby achieving the function of measuring the small-particle primary dust, the large-particle regeneration dust, and the small-particle regeneration dust.

[0166] S152. Control the amount of the large-particle primary dust, the small-particle primary dust, the large-particle regenerated dust, and the small-particle regenerated dust to be transported to the stirring pot 930;

[0167] After the dust is metered, the metered dust is transported to the metering pipe and blown into the stirring pot 930 by the blower.

[0168] S153. Control the amount of asphalt delivered to the stirring pot 930;

[0169] The asphalt is transported to the stirring pot 930 after being heated and measured. This is a prior art and will not be described in detail here.

[0170] S154. Control the stirring of the recycled dry mixture, the recycled dry coarse material, the original dry aggregate, the small-particle original dust, the large-particle recycled dust, the small-particle recycled dust and the asphalt to form the asphalt mixture.

[0171] The dust collected by the dust treatment equipment is reused, which improves the utilization rate and avoids waste of resources. In addition, the outlet end of the first-stage primary dust removal component 832 is also connected to a screw conveyor, through which the large-particle primary dust is transported to the aggregate elevator 900, and then transported to the vibration component 910 through the aggregate elevator 900, screened together with the primary dry aggregate, and then transported to the stirring pot 930 after metering, thereby improving the utilization rate of the primary aggregate.

[0172] Furthermore, the dust elevator conveys the small-particle primary dust, large-particle regenerated dust and the small-particle regenerated dust into the buffer bin, and when the three are needed, the dust is conveyed to the powder scale for measurement by opening the switch valve of the buffer bin; in order to avoid dust congestion in the powder elevator, when the buffer bin reaches a full load state, the dust in the buffer bin is conveyed to the recovery powder tank 940, and then sent back to the powder elevator through the recovery powder spiral conveying component 950, so that the dust circulates and alleviates congestion. Further, when the dust in the buffer bin cannot meet the production demand, in order to avoid the continuity of production, the new aggregate in the new powder tank 960 is conveyed to the powder scale for measurement, thereby achieving uninterrupted production. In addition, the recovery powder tank 940 is connected to the regeneration flue 510, and the regeneration induced draft fan 570 can pump the dust in the recovery powder tank 940 into the regeneration flue 510, thereby reducing the viscosity of the regenerated dust again.

[0173] Furthermore, when the vibration component 910 screens the large-particle primary dust and the primary dry aggregate, dust will be generated, and the dust will be transported back to the primary flue 831 through the dust suction fan for dust removal again.

[0174] In summary, the present invention avoids the asphalt in the regenerated fine material sticking to the wall of the regenerated drying inner cylinder 120, resulting in the regenerated coarse material not being heated thoroughly and the risk of fire or even explosion due to excessive exhaust gas, by heating the regenerated fine material and the regenerated coarse material separately; in addition, the regenerated coarse material is directly heated by the heater and the regenerated fine material is indirectly heated by the hot wall, which reduces the temperature for heating the regenerated fine material and also avoids the asphalt in the regenerated fine material being in a viscous state, thereby reducing the viscosity of the regenerated coarse material and the regenerated fine material; at the same time, it also avoids the situation where the asphalt sticks to the lifting board and the material cannot be lifted, thereby improving the heating rate; by adding new aggregate to the regenerated fine material, the viscosity of the asphalt in the regenerated fine material is further reduced.

[0175] In the prior art, it is usually a small regeneration and a large primary, that is, the primary aggregate accounts for a large proportion. When the flue gas is treated, the regenerated flue gas is transported into the primary drying drum 600 for secondary combustion, or the regenerated flue gas and the primary flue gas are dedusted through a set of dust removal equipment; and in order to improve the utilization rate of recycled resources, the present invention is a small primary and a large regeneration, that is, the primary aggregate accounts for a small proportion, and the regenerated flue gas is large, which will affect the combustion of the primary aggregate, and the regenerated flue gas contains asphalt, which will reduce the life of the bag dust collector in the dust removal equipment; Therefore, the present invention separates the dust removal system of the recycled aggregate and the primary aggregate, thereby avoiding the influence of a large amount of recycled dust on the heating effect of the primary aggregate, and also avoiding the influence of the asphalt flue gas in the regenerated dust on the life of the bag dust collector that processes the primary dust. In addition, since the present invention is a small primary and a large regeneration, compared with a large primary and a small regeneration, the processing capacity of the primary dust removal mechanism 830 is reduced, so the cost will be reduced accordingly. Although a set of dust removal mechanisms is added, the service life of the primary mechanism is extended, and the cost of the primary mechanism is reduced, so after balancing, the total cost will not fluctuate greatly.

[0176] The present invention also improves the utilization rate of recycled aggregate and original aggregate while ensuring environmental protection by reusing the large-particle recycled dust, small-particle recycled dust, large-particle original dust and small-particle original dust collected in the dust removal equipment, thereby further avoiding waste of resources.

[0177] Example 3

[0178] On the basis of Example 1 and Example 2, the present invention proposes a small virgin and large recycled asphalt mixture stirring control system, which is used to implement the small virgin and large recycled asphalt mixture stirring control method described above, and the control system includes:

[0179] A first control module, the first control module is configured to control the conveying of recycled coarse material into the regeneration drying inner cylinder 120, and conveying recycled fine material into the regeneration drying interlayer 130, wherein the recycled fine material includes recycled asphalt, the regeneration drying inner cylinder 120 is provided with a regeneration drying outer cylinder 110, and the regeneration drying interlayer is formed between the regeneration drying outer cylinder 110 and the regeneration drying inner cylinder 120;

[0180] a second control module, the second control module being configured to control heating of the regenerated coarse material and the regenerated fine material according to a first temperature control strategy to form a regenerated dry coarse material and a regenerated dry fine material, respectively, wherein the regenerated coarse material is directly heated by the regeneration heater 300, and the regenerated fine material is heated by the heated cylinder wall of the regeneration dry inner cylinder 120 through heat conduction;

[0181] A third control module, the third control module is configured to control the conveying of the raw aggregate into the raw drying drum 600;

[0182] a fourth control module, the fourth control module being configured to control heating of the raw aggregate to form raw dry aggregate;

[0183] A fifth control module, the fifth control module is configured to control the delivery of the regenerated dry fine material, the regenerated dry coarse material and the primary dry aggregate into the stirring pot 930 in a certain amount;

[0184] A sixth control module, the sixth control module is configured to control the delivery of asphalt into the stirring pot 930 according to the amount;

[0185] A seventh control module is configured to control the mixing of the recycled dry fine material, the recycled dry coarse material, the virgin dry aggregate and the asphalt to form the asphalt mixture.

[0186] Example 3

[0187] like Figure 7 As shown, the computer system 700 of the terminal device includes a CPU 701, which can perform various appropriate actions and processes according to the program stored in the ROM 702 or the program loaded from the storage part 708 to the RAM 703. In the RAM 703, various programs and data required for system operation are also stored. The CPU 701, the ROM 702 and the RAM 703 are connected to each other through the bus 704. The I / O interface 705 is also connected to the bus 704. The following components are connected to the I / O interface 705: an input part 706 including a keyboard, a mouse, etc.; an output part 707 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc. and a speaker, etc.; a storage part 708 including a hard disk, etc.; and a communication part 709 including a network interface card such as a LAN card, a modem, etc. The communication part 709 performs communication processing via a network such as the Internet. The drive is also connected to the I / O interface 705 as needed. A removable medium 711, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like, is mounted on the drive 710 as needed, so that a computer program read therefrom is installed into the storage section 708 as needed.

[0188] In particular, according to an embodiment of the present invention, the above reference process Figure 1 The described process can be implemented as a computer software program. For example, embodiment 3 of the present invention includes a computer program product, which includes a computer program carried on a computer readable medium, and the computer program contains program code for executing the method shown in the flow chart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication part, and / or installed from a removable medium. When the computer program is executed by CPU 701, the above-mentioned functions defined in the present computer system 700 are executed.

[0189] It should be noted that the computer-readable medium shown in the present invention may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present invention, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, device or device. In the present invention, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable program code. This propagated data signal may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which may send, propagate or transmit a program for use by or in conjunction with an instruction execution system, apparatus or device. The program code contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, optical cable, RF, etc., or any suitable combination of the above.

[0190] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, functions and operations of the system, method and computer program product according to various embodiments 3 of the present invention. In this regard, each box in the flow chart or block diagram can represent a module, a program segment, or a part of a code, and the above-mentioned module, program segment, or a part of a code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flow chart, and the combination of the boxes in the block diagram or flow chart, can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0191] As another aspect, the present invention further provides a computer-readable medium, which may be included in the electronic device described in the above embodiment; or may exist independently without being assembled into the electronic device. The above computer-readable medium carries one or more programs, and when the above one or more programs are executed by an electronic device, the electronic device implements the small virgin and large recycled asphalt mixture mixing control method as described in the above embodiment.

[0192] For example, the electronic device may implement Figure 1 As shown in: Step S100. Controlling the conveying of the regenerated coarse material into the regenerated drying inner cylinder, and conveying the regenerated fine material into the regenerated drying interlayer, wherein the regenerated fine material includes regenerated asphalt, the regenerated drying inner cylinder is provided with a regenerated drying outer cylinder, and the regenerated drying interlayer is formed between the regenerated drying outer cylinder and the regenerated drying inner cylinder; Step S200. Controlling the heating of the regenerated coarse material and the regenerated fine material to form regenerated drying coarse material and regenerated drying fine material respectively, wherein the regenerated coarse material is directly heated by the regeneration heater, and the regenerated fine material is heated by the heated The cylinder wall of the regenerated drying inner cylinder is heated by heat conduction; step S300. Controlling the conveying of virgin aggregate into the virgin drying drum; step S400. Controlling the heating of the virgin aggregate to form virgin dried aggregate; step S500. Controlling the conveying of the regenerated dried fine material, the regenerated dried coarse material and the virgin dried aggregate into the stirring pot in quantity; step S600. Controlling the conveying of asphalt into the stirring pot in quantity; step S700. Controlling the stirring of the regenerated dried fine material, the regenerated dried coarse material, the virgin dried aggregate and the asphalt to form the asphalt mixture.

[0193] It should be noted that, although several modules or units of the device for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiments disclosed in the present invention, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided into multiple modules or units to be embodied.

[0194] In addition, although the steps of the method of the present invention are described in a specific order in the drawings, this does not require or imply that the steps must be performed in this specific order, or that all the steps shown must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps, etc.

[0195] Through the description of the above implementations, those skilled in the art can easily understand that the example implementations described here can be implemented by software, or by combining software with necessary hardware.

[0196] The above description is only a preferred embodiment of the present invention and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present invention is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present invention (but not limited to) to form a technical solution.

Claims

1. A method for controlling the mixing of small virgin and large recycled asphalt, characterized in that: The steps include: S100. Controlling the conveying of recycled coarse material into the regeneration drying inner cylinder (120), and conveying recycled fine material into the regeneration drying interlayer (130), wherein the recycled fine material includes recycled asphalt, the regeneration drying inner cylinder (120) is provided with a regeneration drying outer cylinder (110) on its outer shell, and the regeneration drying interlayer (130) is formed between the regeneration drying outer cylinder (110) and the regeneration drying inner cylinder (120); S200. Controlling the heating of the regenerated coarse material and the regenerated fine material to form a regenerated dry coarse material and a regenerated dry fine material, respectively, wherein the regenerated coarse material is directly heated by the regeneration heater (300), and the regenerated fine material is heated by the heated cylinder wall of the regeneration dry inner cylinder (120) through heat conduction; S300. Controlling the conveying of raw aggregate into the raw drying drum (600); S400. Controlling heating of the primary aggregate to form primary dry aggregate; S500. Controlling the delivery of the regenerated dry fine material, the regenerated dry coarse material and the primary dry aggregate into the stirring pot (930); S600. Controlling the delivery of asphalt into the stirring pot (930) according to the amount; S700. Controlling the stirring of the recycled dry fine material, the recycled dry coarse material, the original dry aggregate and the asphalt to form the asphalt mixture; After step S100, the following steps are also included: S110. Controlling the conveying of new aggregate into the regenerated drying interlayer (130), wherein the new aggregate and the regenerated fine material are mixed to form a regenerated mixed material; S120. Controlling the heating of the regenerated coarse material and the regenerated mixed material according to the temperature control strategy to form a regenerated dry coarse material and a regenerated dry mixed material, respectively, wherein the regenerated coarse material is directly heated by the regeneration heater (300), and the regenerated mixed material is heated by the heated cylinder wall of the regeneration drying inner cylinder (120) through heat conduction; S130. Controlling the conveying of raw aggregate into the raw drying drum (600); S140. Controlling heating of the primary aggregate to form primary dry aggregate; S150. Controlling the delivery of the recycled dry mixed material, recycled dry coarse material and the original dry aggregate to the stirring pot (930); S160. Controlling the delivery of asphalt into the stirring pot (930) according to the amount; S170. Controlling the stirring of the recycled dry mixture, the recycled dry coarse material, the original dry aggregate and the asphalt to form the asphalt mixture; The temperature control strategy includes the following steps: S01. Setting a first temperature threshold and a second temperature threshold, wherein the first temperature threshold is a temperature at which the recycled mixture can be heated to meet production requirements, and the second temperature threshold is a temperature at which the asphalt in the recycled mixture can be in a viscous state, wherein the second temperature threshold is greater than the first temperature threshold; S02. Controlling heating of the recycled coarse material and the recycled mixture; S03. Real-time acquisition of the temperature of the regenerated dry mixture at the outlet side of the regenerated dry outer cylinder (110), which is the real-time mixture temperature; S04. Compare the real-time mixing temperature with the first temperature threshold and the second temperature threshold to obtain a first comparison result, a second comparison result, or a third comparison result, wherein the first comparison result is that the real-time mixing temperature is less than the first temperature threshold, the second comparison result is that the real-time mixing temperature is greater than or equal to the first temperature threshold and less than the second temperature threshold, and the third comparison result is that the real-time mixing temperature is greater than or equal to the second temperature threshold; S05. When the first comparison result is obtained, controlling to increase the flame size of the regeneration heater (300) until the second comparison result is obtained; S06. When the second comparison result is obtained, controlling to maintain the flame size of the regeneration heater (300); S07. When the third comparison result is obtained, controlling to reduce the flame size of the regeneration heater (300) until the second comparison result is obtained; Step S120 includes the following steps: S121. Controlling the regeneration drying outer cylinder (110) to drive the regeneration drying inner cylinder (120) to rotate, driving the regeneration coarse material and the regeneration mixed material to tumble, forming regeneration coarse material dust in the regeneration drying inner cylinder (120), and forming regeneration mixed material dust in the regeneration drying interlayer (130); S122. Controlling and collecting the large particles of the regenerated coarse dust and the regenerated mixed dust to obtain primary regenerated dust; S123. Controlling and collecting small particles of regeneration dust in the primary regeneration dust to obtain secondary regeneration dust; S124. Control the catalytic combustion of the secondary regeneration dust to obtain regenerated environmentally friendly flue gas.

2. The stirring control method of small virgin and large recycled asphalt mixture according to claim 1 is characterized in that: After step S123, the following steps are also included: S1231. Controlling the adsorption of dust in the secondary regenerated dust to obtain regenerated adsorbed dust; S1232. Control the catalytic combustion of the regenerated adsorbed dust to obtain regenerated environmentally friendly flue gas.

3. The stirring control method of small virgin and large recycled asphalt mixture according to claim 1 is characterized in that: Step S140 includes the following steps: S141. Controlling the primary drying drum (600) to rotate, driving the primary aggregate to roll, and forming primary dust in the primary drying drum (600); S142. Controlling and collecting large particles of primary dust in the primary dust to obtain primary primary dust; S143. Control and collect small particles of primary dust in the first-level primary dust to obtain primary environmentally friendly flue gas.

4. The stirring control method of small virgin and large recycled asphalt mixture according to claim 3 is characterized in that: After step S150, the following steps are also included: S151. Control and meter the small-particle primary dust, the large-particle regenerated dust, and the small-particle regenerated dust; S152. Control the amount of the large-particle primary dust, the small-particle primary dust, the large-particle regenerated dust, and the small-particle regenerated dust to be transported to the stirring pot; S153. Controlling the delivery of asphalt into the stirring pot (930) according to the amount; S154. Control the stirring of the recycled dry mixture, the recycled dry coarse material, the original dry aggregate, the small-particle original dust, the large-particle recycled dust, the small-particle recycled dust and the asphalt to form the asphalt mixture.

5. A small virgin and large recycled asphalt mixture stirring control system, used to implement the small virgin and large recycled asphalt mixture stirring control method as described in any one of claims 1 to 4, characterized in that: The control system comprises: A first control module, the first control module being configured to control the conveying of recycled coarse material into a regeneration drying inner cylinder (120), and conveying recycled fine material into a regeneration drying interlayer (130), wherein the recycled fine material includes recycled asphalt, the regeneration drying inner cylinder (120) being provided with a regeneration drying outer cylinder (110) on its outer shell, and the regeneration drying interlayer (130) being formed between the regeneration drying outer cylinder (110) and the regeneration drying inner cylinder (120); a second control module, the second control module being configured to control heating of the regenerated coarse material and the regenerated fine material to form regenerated dry coarse material and regenerated dry fine material, respectively, wherein the regenerated coarse material is directly heated by a regeneration heater (300), and the regenerated fine material is heated by heat conduction through the heated cylinder wall of the regeneration dry inner cylinder (120); A third control module, the third control module being configured to control the conveying of the raw aggregate into the raw drying drum (600); a fourth control module, the fourth control module being configured to control heating of the raw aggregate to form raw dry aggregate; a fifth control module, the fifth control module being configured to control the delivery of the regenerated dry fine material, the regenerated dry coarse material and the primary dry aggregate into the stirring pot (930) in a quantity; a sixth control module, the sixth control module being configured to control the delivery of asphalt into the stirring pot (930) in a certain amount; A seventh control module is configured to control the mixing of the recycled dry fine material, the recycled dry coarse material, the virgin dry aggregate and the asphalt to form the asphalt mixture.

6. A terminal device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the small virgin and large recycled asphalt mixture mixing control method as described in any one of claims 1 to 4 are implemented.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the small virgin and large recycled asphalt mixture mixing control method as described in any one of claims 1 to 4 are implemented.

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