Fine old asphalt material screening system capable of fully automatically removing impurities

Abstract

The utility model discloses a fine old asphalt material screening system capable of removing impurities in a full-automatic mode, and belongs to the technical field of asphalt screening. The device comprises a primary screening system and an optical sorting system, the primary screening system comprises a feeding area and a distributing area, and the optical sorting system comprises a conveying belt, an industrial camera, a linear detachable nozzle system and the like. The old asphalt material is conveyed forwards through the conveying belt located below the material distributing area, meanwhile, the old asphalt material on the conveying belt is shot through the industrial camera located above the conveying belt, the old asphalt material is recognized through the artificial intelligence system, and the old asphalt material is conveyed to the conveying belt at the end of the conveying belt. The linear detachable nozzle system sprays high-speed high-pressure airflow to the recognized sundries and the unqualified old materials, so that the sundries fall into the second sundries box, the qualified old materials fall into the material receiving box, and therefore fine screening of the asphalt old materials is achieved without manual driving. The whole operation process is small in labor amount and high in automation degree, and the asphalt screening efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of asphalt screening, in particular to a fully automatic impurity-removing refined asphalt old material screening system. Background Art

[0002] The current asphalt pavement recycling process usually includes: first, recycling old materials through milling operations, followed by secondary crushing and screening. However, the old materials recovered during the milling and crushing process come from the service roads, and are often inevitably mixed with impurities, mud, and even paint blocks. If no measures are taken to remove these non-target substances and only screening is performed by size, then compared with new aggregates, these recycled old asphalt materials may have potential risks and deficiencies in quality and performance.

[0003] Currently, there is no asphalt waste material screening method specifically for removing impurities on the market. Based on this, the utility model designs a fully automatic impurity-removing refined asphalt waste material screening system to solve the above problem. Utility Model Content

[0004] The utility model provides a fully automatic impurity-removing refined asphalt waste material screening system in order to solve the technical problems existing in the above-mentioned background technology.

[0005] The utility model adopts the following technical scheme: a fully automatic impurity removal and refined asphalt waste material screening system, comprising the following steps:

[0006] S1, construct a primary screening system for primary screening of asphalt waste materials and preliminary removal of debris; the primary screening system includes: a feeding area, and a material separation area arranged at the lower side of the feeding area; the feeding area includes: a feeding hopper, and an industrial fan installed at the lower end of the feeding hopper; the material separation area includes: a plurality of blocks vertically arranged on one side of the industrial fan, a plurality of guide hoppers correspondingly arranged at the lower side of the block, and a first debris box arranged on one side of the guide hopper; the main steps are:

[0007] S1.1, classify asphalt waste into several grades according to quality or particle size;

[0008] S1.2, adjusting the wind force level of the industrial fan according to the level described in S1.1, so that each level of asphalt waste material falls into the corresponding guide hopper and the debris falls into the first debris box;

[0009] S2, constructing an optical sorting system for further fine screening of the asphalt waste material after rough screening; the optical sorting system comprises: a plurality of transmission devices correspondingly arranged at the lower side of the guide hopper, at least two industrial camera components relatively arranged at one side of each transmission device and connected to an artificial intelligence system, a linear detachable nozzle system arranged above the front end of the transmission device, a plurality of material receiving boxes arranged at the lower side of the linear detachable nozzle system and corresponding to the transmission device, and a plurality of second debris boxes correspondingly arranged between the transmission device and the material receiving box; the main steps are:

[0010] S2.1, the transmission device is used to transmit the old asphalt material falling out of the guide hopper;

[0011] S2.2, the industrial camera is used to identify old asphalt materials;

[0012] S2.3, the transmission device is used to transmit the qualified asphalt waste material to the material receiving box to obtain the asphalt recycling waste material;

[0013] S2.4, unqualified asphalt waste materials and debris are sprayed into the second debris box by the linear detachable nozzle system.

[0014] Preferably, a plurality of primary screening system pillars are provided at the bottom of the feeding hopper, and one side of the outlet end of the feeding hopper is designed to be in an arc shape.

[0015] Preferably, the industrial fan comprises:

[0016] At least two bases are provided, a cover shell is fixedly mounted above the bases, an electric motor is arranged inside the cover shell, and the electric motor is connected with high-speed fan blades.

[0017] Preferably, the stopper comprises:

[0018] A triangular prism is transversely arranged on the upper side of the guide hopper, and a cylinder is connected to the triangular prism; the first side wall of the triangular prism is arranged horizontally, and the cylinder is arranged on the edge between the second side wall and the third side wall, and the cylinder and the triangular prism are arranged in the same direction;

[0019] The stoppers are arranged parallel to each other.

[0020] Preferably, the bottom of the guide hopper is hollowed out, and the lower end of the guide hopper is inclined inward.

[0021] Preferably, the transmission device comprises:

[0022] A plurality of transmission pillars arranged at predetermined intervals, a bracket arranged on the transmission pillars, a plurality of rollers rotatably arranged on the brackets, a first transmission roller and a second transmission roller arranged on both sides of the brackets, a transmission belt arranged on the rollers and transmission-connected to the first transmission roller and the second transmission roller, baffles arranged at both ends of the transmission belt, a driving device arranged on one side of the first transmission roller, a third transmission roller transmission-connected to the driving device, and a transmission connection between the third transmission roller and the first transmission roller;

[0023] The width of the conveyor belt is slightly greater than the width of the guide hopper.

[0024] Preferably, the industrial camera assembly comprises:

[0025] An adjustable camera support, and an industrial camera mounted on the adjustable camera support;

[0026] The industrial camera components are arranged relative to each other and are spaced at a predetermined distance; the industrial cameras are arranged on the upper side of the conveyor belt and are adjusted at angles to have the same camera area.

[0027] Preferably, the linear detachable nozzle system comprises:

[0028] A support base disposed on the material receiving box, and a plurality of nozzles detachably disposed on the support base;

[0029] The nozzles are arranged in an array along the width direction of the transmission device, and at least one nozzle is correspondingly arranged at the front end of each transmission device.

[0030] Preferably, the nozzle comprises:

[0031] A shell having a self-excited oscillation chamber on one side, a double channel connected to the self-excited oscillation chamber is provided on the other side of the shell, a nozzle outlet is provided at the output end of the double channel, and the self-excited oscillation chamber is connected to the nozzle outlet;

[0032] The dual channels include: a gas channel and a liquid channel formed on the periphery of the gas channel; an atomizer core is provided at the output end of the gas channel;

[0033] The dual channels, the nozzle outlet and the self-excited oscillation chamber are located on the same central axis.

[0034] Preferably, the height of the side wall of the material receiving box away from the second glove box is greater than the height of the side wall close to the second glove box.

[0035] Beneficial effects of the utility model:

[0036] 1. Through the primary screening system, the debris in the old asphalt materials can be preliminarily removed. At the same time, the old asphalt materials can be divided into several levels according to the quality or particle size. The wind force level of the industrial fan can be adjusted according to the level, so that the old asphalt materials of each level fall into the corresponding guide hopper and the debris falls into the first debris box.

[0037] 2. Through the optical picking system, refined screening is carried out to further remove debris. The industrial camera can photograph and identify the old asphalt materials after coarse screening. The linear detachable nozzle system sprays high-speed and high-pressure airflow to spray the identified unqualified old asphalt materials and debris into the second debris box, thereby improving the performance of the old asphalt materials and thus the performance of the asphalt recycled mixture.

[0038] 3. The conveyor belt located below the guide hopper in the material distribution area transports the old asphalt material forward. At the same time, the industrial camera located above the conveyor belt will take pictures of the old material on the conveyor belt and use the artificial intelligence system to identify the old material. At the end of the conveyor belt, the linear detachable nozzle system will spray high-speed and high-pressure airflow on the identified debris and unqualified old materials, so that the debris falls into the second debris box, and the qualified old materials naturally fall into the receiving box, thereby realizing the refined screening of the old asphalt materials without manual drive.

[0039] The entire operation process of the utility model has small labor workload and high automation, which greatly improves the screening efficiency of asphalt. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the overall system of the utility model;

[0041] Figure 2 for Figure 1 The cross-sectional structure diagram at AA in the middle;

[0042] Figure 3 It is a schematic diagram of the structure of the transmission device;

[0043] Figure 4 This is a structural diagram of an industrial fan;

[0044] Figure 5 Schematic diagram of the cross-sectional structure of the nozzle.

[0045] Figures 1 to 5The figure marks are: primary screening system 1, feeding hopper 1-1, industrial fan 1-2, block 1-3, first debris box 1-4, guide hopper 1-5, transmission device 2, industrial camera 3, linear detachable nozzle system 4, second debris box 5, material receiving box 6, primary screening system support 7, transmission support 8, adjustable camera support 9, support seat 10, driving device 11, first transmission roller 12, transmission belt 13, roller 14, bracket 15, high-speed fan blade 16, electric motor 17, cover 18, base 19, gas channel 20, liquid channel 21, atomization core 22, nozzle outlet 23, self-excited oscillation chamber 24, second transmission roller 25, third transmission roller 26, baffle 27. DETAILED DESCRIPTION

[0046] The present invention will be further described below in conjunction with the embodiments.

[0047] Embodiment 1

[0048] This embodiment discloses a fully automatic impurity removal refined asphalt waste material screening system, such as Figure 1 As shown, the following steps are included:

[0049] S1, constructing a primary screening system 1 for primary screening of old asphalt materials and preliminary removal of debris;

[0050] The primary screening system 1 comprises: a feeding area, and a material distribution area arranged at the lower side of the feeding area; the feeding area comprises: a feeding hopper 1-1, and an industrial fan 1-2 installed at the lower end of the feeding hopper 1-1; the material distribution area comprises: three blocks 1-3 vertically arranged at one side of the industrial fan 1-2, three guide hoppers 1-5 correspondingly arranged at the lower side of the block 1-3, and a first debris box 1-4 arranged at one side of the guide hopper 1-5; Figure 2 As shown;

[0051] S1.1, according to the quality or particle size, the asphalt waste is divided into three levels: coarse asphalt waste, medium asphalt waste, and fine asphalt waste;

[0052] S1.2, adjust the wind force level corresponding to the industrial fan 1-2 according to different levels, so that each level of asphalt waste material falls into the corresponding guide hopper 1-5, and light debris such as dust and soil falls into the first debris box 1-4; it is worth noting that: when the primary screening system 1 performs primary screening on the asphalt waste material, the selection of the wind force level of the industrial fan 1-2 is very important. The greater the wind force, the waste material of the same mass or volume will fall into a farther material separation area. Therefore, it is necessary to select a suitable wind force level according to the volume range of the waste material after milling and crushing, so that the waste material can fall into the three material separation areas more evenly.

[0053] S2, build an optical sorting system to further refine the screening of asphalt waste materials after rough screening;

[0054] The optical picking system includes: a plurality of transmission devices 2 correspondingly arranged at the lower side of the guide hoppers 1-5, at least two industrial camera components relatively arranged at one side of each transmission device 2 and connected to an artificial intelligence system, a linear detachable nozzle system 4 arranged above the front end of the transmission device 2, a plurality of material receiving boxes 6 arranged at the lower side of the linear detachable nozzle system 4 and corresponding to the transmission device 2, and a plurality of second sundry boxes 5 correspondingly arranged between the transmission device 2 and the material receiving boxes 6;

[0055] S2.1, the transmission device 2 transmits the old asphalt material falling out of the guide hopper 1-5 forward;

[0056] S2.2, industrial camera 3 takes pictures of old asphalt materials, and the artificial intelligence system identifies them;

[0057] S2.3, the transmission device 2 transmits the qualified asphalt waste material to the material receiving box 6 to obtain the asphalt recycling waste material;

[0058] S2.4, the linear detachable nozzle system 4 sprays high-speed and high-pressure airflow to spray the identified unqualified asphalt waste materials and debris into the second debris box 5.

[0059] In a further embodiment, two primary screening system pillars 7 are provided at the bottom of the feeding hopper 1 - 1 for supporting the primary screening system 1 ; one side of the outlet end of the feeding hopper 1 - 1 is designed to be an arc shape to facilitate the material to slide into the primary screening system 1 .

[0060] In a further embodiment, Figure 4 As shown, the industrial fan 1-2 includes: two bases 19, a cover 18 is fixedly installed above the base 19, an electric motor 17 is arranged inside the cover 18, and the electric motor 17 is connected to a high-speed fan blade 16. The industrial fan 1-2 has different wind force levels. After the asphalt waste material is introduced into the feeding hopper 1-1, the power supply is started, and the appropriate wind force level is selected. At this time, the industrial fan 1-2 will blow out airflow to feed the asphalt waste material into three different guide hoppers 1-5, so as to achieve the screening of the asphalt waste material according to the particle size or amount of the asphalt waste material, and at the same time, light debris such as dust and soil are blown into the first debris box 1-4 to achieve the preliminary screening of the asphalt waste material.

[0061] In a further embodiment, the block 1-3 includes: a triangular prism disposed transversely on the upper side of the guide hopper 1-5, and a cylinder connected to the triangular prism; the first side wall of the triangular prism is disposed horizontally, and the cylinder is disposed on the edge between the second side wall and the third side wall, and the cylinder and the triangular prism are disposed in the same direction; the block 1-3 are disposed parallel to each other. After the industrial fan 1-2 is turned on, different levels of asphalt waste materials are separated by the block 1-3, and the smooth arc surface of the cylinder and the inclined side surface of the triangular prism facilitate the material to slide to each partition.

[0062] In a further embodiment, the bottom of the guide hopper 1 - 5 is hollowed out, and the lower end of the guide hopper 1 - 5 is tilted inward to facilitate the asphalt waste material to fall downward to the transmission device 2 .

[0063] In a further embodiment, Figure 3 As shown, the transmission device 2 includes: two transmission pillars 8 arranged at a predetermined distance, a bracket 15 arranged on the transmission pillar 8, a plurality of rollers 14 rotatably arranged on the bracket 15, a first transmission roller 12 and a second transmission roller 25 arranged on both sides of the bracket 15, a transmission belt 13 arranged on the roller 14 and transmission-connected to the first transmission roller 12 and the second transmission roller 25, a driving device 11 arranged on one side of the first transmission roller 12, a third transmission roller 26 transmission-connected to the driving device 11, and a transmission connection between the third transmission roller 26 and the first transmission roller 12. In order to ensure that the asphalt waste material enters the transmission belt 13 smoothly from the guide hopper 1-5 without being shaken off, the width of the transmission belt 13 is slightly larger than the width of the guide hopper 1-5, and baffles 27 are arranged at both ends of the transmission belt 13.

[0064] In a further embodiment, the industrial camera assembly includes: an adjustable camera support 9, an industrial camera 3 installed on the adjustable camera support 9; two columns and three rows of six industrial camera assemblies are arranged near the front end of the conveyor belt 13, and the two industrial cameras 3 on one side of each conveyor belt 13 are arranged opposite to each other and spaced a predetermined distance apart; the industrial camera 3 is arranged on the upper side of the conveyor belt 13, and the angle is adjusted to the same camera area, so as to facilitate all-round shooting of asphalt recycling materials and improve accuracy.

[0065] In a further embodiment, the linear detachable nozzle system 4 includes: a support base 10 arranged on the material receiving box 6, and a plurality of nozzles detachably arranged on the support base 10; the nozzles are arranged in an array along the width direction of the transmission device 2, and at least one nozzle is correspondingly arranged at the front end of each transmission device 2, which is used to spray unqualified asphalt old materials and debris dropped from the front end of the corresponding conveyor belt 13 into the second debris box 5.

[0066] In a further embodiment, Figure 5 As shown, the nozzle comprises: a shell having a self-excited oscillation chamber 24 on one side, a double channel connected to the self-excited oscillation chamber 24 is provided on the other side of the shell, a nozzle outlet 23 is provided at the output end of the double channel, and the self-excited oscillation chamber 24 is connected to the nozzle outlet 23;

[0067] The dual channel includes: a gas channel 20, and a liquid channel 21 formed on the periphery of the gas channel 20; an atomizing core 22 is provided at the output end of the gas channel 20; the dual channel, the nozzle outlet 23 and the self-excited oscillation chamber 24 are located on the same central axis. The gas and liquid are atomized by the atomizing core 22 and then ejected through the nozzle outlet 23. Under the action of the self-excited oscillation chamber 24, the jet form of the self-excited oscillation pulse is used to enhance the pressure-changing characteristics and cavitation effect, strengthen the precise impact effect of the cavitation jet on unqualified asphalt waste materials and debris, and greatly improve the work efficiency.

[0068] In a further embodiment, the side wall height of the receiving box 6 away from the second debris box 5 is greater than the side wall height close to the second debris box 5 to ensure that the asphalt recycling material transmitted by the conveyor belt 13 falls smoothly into the receiving box 6 and does not fall to the outside.

[0069] Embodiment 2

[0070] This embodiment discloses a fully automatic impurity-removing refined asphalt waste material screening system, and the impurity rate of the asphalt recycled waste material obtained by the method is verified through experiments.

[0071] Experimental group 1 used this method to recycle old asphalt materials; control group 1 used conventional methods to recycle old asphalt materials.

[0072] The impurity rate of asphalt recycled materials using this method is about 1 / 10,000, while the impurity rate of asphalt recycled materials using conventional methods is about 1 / 100. The results show that this method can greatly improve the removal rate of impurities, thereby improving the performance of asphalt recycled materials.

[0073] Embodiment 3

[0074] This embodiment discloses a fully automatic impurity removal and refined asphalt waste material screening system. The target gradation of AC-20F recycled mixture is verified by experiments using asphalt recycled materials, new aggregates, new asphalt, and regeneration agents obtained by this method, and its high temperature stability, low temperature crack resistance, and water stability performance are comprehensively evaluated.

[0075] Experimental group 2, using the asphalt recycling material, new aggregate, new asphalt, and regeneration agent obtained by this method to make the target gradation AC-20F recycled mixture, and comprehensively evaluate its high temperature stability, low temperature crack resistance, and water stability performance. The blending ratio of asphalt recycling material is 30%, and the specific gradation design is as shown in Table 1; the new asphalt uses 90# matrix asphalt, and the oil-stone ratio is selected according to experience. 5%; the heating temperature of asphalt recycling material is 120℃, and the heating time is about 2h; the heating temperatures of new aggregate and new asphalt are 180℃ and 155℃ respectively, and the mixing temperature of the mixture is 165℃; the order of adding materials during the mixing process is asphalt recycling material, new aggregate, new asphalt, regeneration agent, and mineral powder, and the total mixing time is controlled at about 3min.

[0076] Table 1 Recycled AC-20F mixture gradation design

[0077] Screen size (mm) Target gradation (%) Asphalt recycling waste material (%) New aggregate (%) 26.5 100.0 30％ 70％ 19 95.0 28.5 66.5 16 85.0 25.5 59.5 13.2 71.0 21.3 49.7 9.5 61.0 18.3 42.7 4.75 50.5 15.15 35.35 2.36 30.0 9 21 1.18 22.5 6.75 15.75 0.6 16.0 4.8 11.2 0.3 11.0 3.3 7.7 0.15 8.5 2.55 5.95 0.075 5.0 1.5 3.5

[0078] Control group 2, using conventional asphalt old material screening method to recycle old materials, new aggregates, new asphalt, regeneration agent to make target gradation AC-20F recycled mixture, and comprehensively evaluate its high temperature stability, low temperature crack resistance, and water stability performance. The blending ratio of asphalt recycled old materials is 30%, and the gradation design is the same as that of experimental group 2; the new asphalt uses 90# matrix asphalt, and the oil-stone ratio is selected according to experience. 5%; the heating temperature of asphalt recycled old materials is 120℃, and the heating time is about 2h; the heating temperatures of new aggregates and new asphalt are 180℃ and 155℃ respectively, and the mixing temperature of the mixture is 165℃; the order of adding materials during the mixing process is asphalt recycled old materials, new aggregates, new asphalt, regeneration agent, mineral powder, and the total mixing time is controlled at about 3min.

[0079] The refined asphalt recycled mixture of the experimental group 2 and the ordinary asphalt recycled mixture of the control group 2 were taken for high temperature stability, low temperature crack resistance and water stability testing. The results of the two parallel experiments are shown in Tables 2 and 3 below, and the comparison of each performance test is shown in Table 4 below.

[0080] Table 2 Results of two parallel experiments on refined asphalt recycled mixture in experimental group 2

[0081]

[0082] Table 3 Results of two parallel experiments on ordinary asphalt recycled mixture in control group 2

[0083]

[0084] The test results show that the average error of parallel tests for ordinary asphalt recycled mixtures is 15.15%, while the average error of parallel tests for refined asphalt recycled mixtures is 4.56%. This shows that the performance stability of refined asphalt recycled mixtures made from the same raw materials but from different batches is better, which is more conducive to the quality control of waste asphalt mixture recycling.

[0085] Table 4 Comparison of performance tests between refined asphalt recycled mixture and ordinary asphalt recycled mixture

[0086]

[0087] The test results show that the dynamic stability of the high-temperature stability characterization index of the refined asphalt recycled mixture has increased from 1455 times / mm to 2367 times / mm. The low-temperature crack resistance of the mixture has been basically restored, and the maximum bending strain at low temperature has increased from 2825με to 3875με. The water stability is excellent, and the freeze-thaw splitting strength ratio has increased from 85.4 to 90.6; the residual stability has increased from 80.8 to 91.05. The improvement of high and low temperature performance and water stability shows that the regeneration effect of the high-efficiency recycled asphalt mixture is good.

[0088] The above is a detailed introduction to a fully automatic impurity removal and refined asphalt waste material screening system provided by the utility model. It is worth noting that the above is only a preferred implementation scheme of the utility model and is not used to limit the utility model. Although the utility model is described in detail with reference to the aforementioned implementation scheme, for those skilled in the art, they can still modify the technical details recorded in the aforementioned implementation schemes, or make equivalent replacements for some of the technical features therein. Any equivalent replacements, modifications, etc. made within the core ideas and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A fully automatic impurity removal and refined asphalt waste material screening system, characterized in that: include: The primary screening system is used to screen the old asphalt material and remove the debris; The primary screening system comprises: a feeding area, and a material distribution area arranged at the lower side of the feeding area; the feeding area comprises: a feeding hopper, and an industrial fan installed at the lower end of the feeding hopper; the material distribution area comprises: a plurality of blocks arranged vertically at one side of the industrial fan, a plurality of guide hoppers arranged correspondingly at the lower side of the block, and a first debris box arranged at one side of the guide hopper; An optical picking system is used for further fine screening of used asphalt materials after rough screening; the optical picking system includes: a number of transmission devices correspondingly arranged at the lower side of the material guide hopper, at least two industrial camera components relatively arranged on one side of each of the transmission devices and connected to an artificial intelligence system, a linear detachable nozzle system arranged above the front end of the transmission device, a number of material receiving boxes arranged at the lower side of the linear detachable nozzle system and corresponding to the transmission device, and a number of second debris boxes correspondingly arranged between the transmission device and the material receiving boxes.

2. The fully automatic impurity removal and refined asphalt waste material screening system according to claim 1 is characterized in that: A plurality of primary screening system pillars are arranged at the bottom of the feeding hopper, and one side of the outlet end of the feeding hopper is designed to be in an arc shape.

3. The fully automatic impurity removal and refined asphalt waste material screening system according to claim 1 is characterized in that: The industrial fan comprises: at least two bases, a cover shell is fixedly installed above the base, an electric motor is arranged inside the cover shell, and the electric motor is connected with high-speed fan blades.

4. The fully automatic impurity removal and refined asphalt waste material screening system according to claim 1 is characterized in that: The stopper comprises: A triangular prism is transversely arranged on the upper side of the guide hopper, and a cylinder is connected to the triangular prism; the first side wall of the triangular prism is arranged horizontally, and the cylinder is arranged on the edge between the second side wall and the third side wall, and the cylinder and the triangular prism are arranged in the same direction; The stoppers are arranged parallel to each other.

5. The fully automatic impurity removal and refined asphalt waste material screening system according to claim 1 is characterized in that: The bottom of the guide hopper is hollowed out, and the lower end of the guide hopper is inclined inward.

6. The fully automatic impurity removal and refined asphalt waste material screening system according to claim 1 is characterized in that: The transmission device comprises: A plurality of transmission pillars arranged at predetermined intervals, a bracket arranged on the transmission pillars, a plurality of rollers rotatably arranged on the brackets, a first transmission roller and a second transmission roller arranged on both sides of the brackets, a transmission belt arranged on the rollers and transmission-connected to the first transmission roller and the second transmission roller, baffles arranged at both ends of the transmission belt, a driving device arranged on one side of the first transmission roller, a third transmission roller transmission-connected to the driving device, and a transmission connection between the third transmission roller and the first transmission roller; The width of the conveyor belt is slightly greater than the width of the guide hopper.

7. The fully automatic impurity removal and refined asphalt waste material screening system according to claim 6 is characterized in that: The industrial camera assembly comprises: An adjustable camera support, and an industrial camera mounted on the adjustable camera support; The industrial camera components are arranged relative to each other and are spaced at a predetermined distance; the industrial cameras are arranged on the upper side of the conveyor belt and are adjusted at angles to have the same camera area.

8. The fully automatic impurity removal and refined asphalt waste material screening system according to claim 1 is characterized in that: The linear detachable nozzle system includes: a support base arranged on the material receiving box, and a plurality of nozzles detachably arranged on the support base; the nozzles are arranged in an array along the width direction of the transmission device, and at least one nozzle is correspondingly arranged at the front end of each transmission device.

9. The fully automatic impurity removal and refined asphalt waste material screening system according to claim 8 is characterized in that: The nozzle comprises: a shell having a self-excited oscillation chamber on one side, a double channel connected to the self-excited oscillation chamber is provided on the other side of the shell, a nozzle outlet is provided at the output end of the double channel, and the self-excited oscillation chamber is connected to the nozzle outlet; The dual channels include: a gas channel and a liquid channel formed on the periphery of the gas channel; an atomizer core is provided at the output end of the gas channel; The dual channels, the nozzle outlet and the self-excited oscillation chamber are located on the same central axis.

10. The fully automatic impurity removal and refined asphalt waste material screening system according to claim 1 is characterized in that: The height of the side wall of the material receiving box away from the second debris box is greater than the height of the side wall close to the second debris box.

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