A regeneration device with self-cleaning function and without discharging and its production method

Abstract

The present invention relates to the field of regeneration equipment, and provides a regeneration equipment with self-cleaning function and without discharging, and a production method. The regeneration equipment includes a regeneration drying drum, a regeneration material elevator, a temporary storage bin, a combustion device, a regeneration return conveyor and a channel switching mechanism. One end of the regeneration drying drum is provided with a feed box, and the other end of the regeneration drying drum is provided with a discharge box. The combustion device is connected to the discharge box, the regeneration material elevator is connected to the feed box, and the temporary storage bin is arranged below the discharge box. One end of the regeneration return conveyor is connected to the regeneration material elevator, and the other end of the regeneration return conveyor is connected to the lower part of the discharge box. The channel switching mechanism is arranged in the discharge box, and the discharge box is controlled to be connected to one of the temporary storage bin and the regeneration return conveyor through the channel switching mechanism. The advantages of the present invention are that it can not only realize no discharging of low-temperature regeneration materials that do not meet the requirements during production, but also automatically clean the adhered regeneration materials after production ends.

Description

Technical Field

[0001] The present invention relates to the technical field of recycling equipment, and in particular to a recycling equipment with self-cleaning function and without discharging materials and a production method thereof. Background Art

[0002] When the existing asphalt mixture plant hot recycling equipment starts production, since the recycling equipment is not preheated and a small fire needs to be turned on first and then a small amount of materials are sent into the recycling drying drum for heating when just starting to heat, in actual production, it often results in the waste of heating heat and materials because the flame size and the feeding amount cannot be perfectly matched and the cold state of the recycling equipment needs to absorb a part of heat. After starting the machine and feeding materials for heating, it is necessary to first discharge a part of the recycled materials whose temperature does not reach the predetermined mixing temperature, and it is necessary to use a loader or a transport vehicle to pull them away and dump them.

[0003] In addition, after the recycling drying drum of the asphalt mixture plant hot recycling equipment dries and heats the recycled materials for a period of time, the situation of the recycled materials adhering to the drum will occur. Due to the various components of the produced recycled asphalt mixture (such as ordinary asphalt, modified asphalt, rubber asphalt, etc.), and in addition, the thickness specifications of the materials are different, the moisture content is high or low, and the reasons of production and operation, even if different anti-sticking structures (such as chains, rake nails, lifting benches, etc.) are adopted in the recycling drying drum, the situation of the recycled materials adhering to the recycling drying drum will still occur. Therefore, in order to enable the recycling equipment to maintain good heating efficiency and normal operation, it is necessary to manually clean the recycling drying drum regularly; and the aged asphalt recycled materials adhere to the barrel wall and the lifting blades of the recycling drying drum after heating, which is very difficult to clean, time-consuming and laborious and affects the production cycle.

[0004] With the increasing environmental protection requirements and the needs of industry competition and development, the requirement for the addition ratio of recycled materials is also getting higher and higher, and a high addition ratio requires the recycled materials to reach a high temperature to meet the temperature and quality requirements of the finished materials after mixing with virgin materials. This requires the recycling equipment to be large-scale, with high output and high temperature. During this process, the adhesion of the recycling drying drum is also increasing. Therefore, there is an urgent need to provide a recycling equipment that can not only achieve no discharging of low-temperature recycled materials that do not meet the requirements during production, but also automatically clean the adhered recycled materials after production. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a recycling equipment with self-cleaning function and without discharging materials and a production method thereof, which can not only achieve no discharging of low-temperature recycled materials that do not meet the requirements during production, but also automatically clean the adhered recycled materials after production.

[0006] The present invention is realized as follows:

[0007] In a first aspect, a regeneration device with self-cleaning function and without discharging includes a regeneration drying drum, a regeneration material elevator, a temporary storage bin, a combustion device, a regeneration return conveyor and a channel switching mechanism. An inlet box is provided at one end of the regeneration drying drum, and an outlet box is provided at the other end of the regeneration drying drum. The combustion device is connected to the outlet box, the regeneration material elevator is connected to the inlet box, and the temporary storage bin is arranged below the outlet box; one end of the regeneration return conveyor is connected to the regeneration material elevator, and the other end of the regeneration return conveyor is connected to the lower part of the outlet box; the channel switching mechanism is arranged in the outlet box, and the outlet box is controlled to be connected to one of the temporary storage bin and the regeneration return conveyor through the channel switching mechanism.

[0008] Further, the inlet box is located above the regeneration return conveyor, and the other end of the regeneration return conveyor extends above the temporary storage bin.

[0009] Further, a first discharge port is provided on the side wall of the lower part of the outlet box, and a second discharge port is provided at the bottom of the outlet box; the first discharge port is connected to the other end of the regeneration return conveyor through a first regeneration return chute, and a temperature measuring device is provided on the first regeneration return chute.

[0010] Further, the channel switching mechanism includes a flap, a rotating shaft and a driving component; the flap is rotatably arranged in the outlet box through the rotating shaft, the driving component is connected to the rotating shaft, and the driving component is used to drive the rotating shaft to drive the flap to block one of the first discharge port and the second discharge port.

[0011] Further, one end of the regeneration return conveyor is connected to the regeneration material elevator through a second regeneration return chute.

[0012] In a second aspect, a production method of a regeneration device with self-cleaning function and without discharging, the production method includes the following steps:

[0013] When starting production, the outlet box is controlled to be connected to the regeneration return conveyor through the channel switching mechanism; the low-temperature regeneration material output from the regeneration drying drum is conveyed to the regeneration material elevator through the regeneration return conveyor, and the regeneration material elevator conveys the low-temperature regeneration material into the regeneration drying drum for secondary heating;

[0014] The temperature of the regeneration material fed into the regeneration return conveyor is detected in real time, and when it is detected that the temperature of the regeneration material reaches the set stirring temperature, the outlet box is controlled to be connected to the temporary storage bin through the channel switching mechanism, so as to carry out normal production; when it is detected that the temperature of the regeneration material does not reach the set stirring temperature, the low-temperature regeneration material is continuously sent back to the regeneration drying drum for heating through the regeneration return conveyor and the regeneration material elevator.

[0015] Further, the following steps are also included: after production ends, a certain amount of stone materials are fed into the regeneration drying drum through the recycled material elevator, and the rotation of the regeneration drying drum is controlled to enable the stone materials to scour the interior of the regeneration drying drum, so as to clean the recycled materials adhered to the interior of the regeneration drying drum;

[0016] The discharge box is controlled to be connected to the recycled material conveyor through the channel switching mechanism, and the scoured stone materials are sent back to the recycled material elevator by using the recycled material conveyor; meanwhile, according to the actual cleaning requirement, the recycled material elevator is controlled to circulate the stone materials into the regeneration drying drum for circulating scour.

[0017] Further, after a certain amount of stone materials are fed into the regeneration drying drum through the recycled material elevator, the combustion device is also controlled to heat the stone materials to the required set temperature, and the combustion device is turned off after reaching the set temperature.

[0018] Further, the following steps are also included: during the last production, the cold material conveying system stops feeding, the discharge box is controlled to be connected to the recycled material conveyor through the channel switching mechanism, and the remaining low-temperature recycled materials in the regeneration drying drum are conveyed to the recycled material elevator by the recycled material conveyor, and the recycled material elevator conveys the low-temperature recycled materials back to the regeneration drying drum, and meanwhile, the combustion device is controlled to turn on a small fire to briefly heat the recycled materials;

[0019] The temperature of the recycled materials fed into the recycled material conveyor is detected in real time, and when it is detected that the temperature of the recycled materials reaches the set mixing temperature, the combustion device is turned off, and the discharge box is controlled to be connected to the temporary storage bin through the channel switching mechanism, so as to feed the last remaining recycled materials into the temporary storage bin; when it is detected that the temperature of the recycled materials does not reach the set mixing temperature, the low-temperature recycled materials are circulated and conveyed back to the regeneration drying drum for heating through the recycled material conveyor and the recycled material elevator.

[0020] Further, the following steps are also included: the coarse-grained materials removed by gravity dust removal in the feed box are fed into the recycled material conveyor, and the recycled material conveyor is used to directly convey the coarse-grained materials to the temporary storage bin.

[0021] By adopting the technical solution of the present invention, at least the following beneficial effects are achieved: it can realize that there is no need to discharge the low-temperature recycled materials that do not meet the requirements at the beginning and the end of production, which can effectively reduce the waste of heating heat and materials; it can automatically clean the adhered recycled materials after production ends, which can improve the cleaning efficiency, reduce the impact on the normal production cycle, and reduce the fatigue degree of the staff; in addition, it helps to ensure the gradation of the recycled materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings in conjunction with embodiments.

[0023] Figure 1 is the overall structure diagram of a regeneration device with self-cleaning function and without discharging of the present invention;

[0024] Figure 2 is Figure 1 the partial enlarged view of part A in

[0025] Explanation of reference numerals:

[0026] Regeneration device 100;

[0027] Regeneration drying drum 1, feed box 11, discharge box 12, first discharge port 121, second discharge port 122;

[0028] Regenerated material elevator 2;

[0029] Temporary storage bin 3;

[0030] Combustion device 4, burner 41, vertical furnace 42;

[0031] Regenerated return conveyor 5;

[0032] Channel switching mechanism 6, flap 61, rotating shaft 62;

[0033] First regenerated return chute 71, temperature measuring device 711, second regenerated return chute 72. Detailed implementation manners

[0034] In order to better understand the technical solutions of the present invention, the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementation manners.<00%>

[0035] It should be noted here that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing these implementation manners and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. Example 1

[0036] Please refer to Figures 1 to 2As shown, a regeneration device 100 of the present invention has a self-cleaning function and does not require discharging. The regeneration device 100 includes a regeneration drying drum 1, a regeneration material elevator 2, a temporary storage bin 3, a combustion device 4, a regeneration return conveyor 5 and a channel switching mechanism 6. The regeneration return conveyor 5 is specifically a belt conveyor. Among them, the regeneration drying drum 1 is used to heat and dry the regeneration material. The regeneration material elevator 2 is used to lift and convey the regeneration material into the regeneration drying drum 1. The temporary storage bin 3 is used to temporarily store the regeneration material that reaches the stirring temperature. The combustion device 4 is used to provide heat to heat the regeneration material in the regeneration drying drum 1. The regeneration return conveyor 5 is used to convey the low-temperature regeneration material back to the regeneration material elevator 2. The channel switching mechanism 6 is used to realize the switching of the output channel.

[0037] One end of the regeneration drying drum 1 is provided with a feed box 11, and the other end of the regeneration drying drum 1 is provided with a discharge box 12. The combustion device 4 is connected to the discharge box 12, so that the heat generated by the combustion of the combustion device 4 can enter the regeneration drying drum 1 through the discharge box 12. The regeneration material elevator 2 is connected to the feed box 11, so that the regeneration material elevator 2 can lift and convey the regeneration material to the feed box 11, and then send it into the regeneration drying drum 1 through the feed box 11. The temporary storage bin 3 is arranged below the discharge box 12, so that the discharge box 12 can send the regeneration material that reaches the stirring temperature into the temporary storage bin 3 for temporary storage. One end of the regeneration return conveyor 5 is connected to the regeneration material elevator 2, and the other end of the regeneration return conveyor 5 is connected to the lower part of the discharge box 12. The channel switching mechanism 6 is arranged in the discharge box 12, and the discharge box 12 is controlled by the channel switching mechanism 6 to be connected to one of the temporary storage bin 3 and the regeneration return conveyor 5. When the channel switching mechanism 6 controls the discharge box 12 to be connected to the temporary storage bin 3, the discharge box 12 can convey the regeneration material that reaches the stirring temperature to the temporary storage bin 3. When the channel switching mechanism 6 controls the discharge box 12 to be connected to the regeneration return conveyor 5, the discharge box 12 can convey the low-temperature regeneration material that does not meet the stirring temperature requirement to the regeneration return conveyor 5, and the regeneration return conveyor 5 sends the low-temperature regeneration material back to the regeneration material elevator 2, so that the low-temperature regeneration material can enter the regeneration drying drum 1 again for heating.

[0038] In some embodiments of the present invention, the feed box 11 is located above the regeneration return conveyor 5, and the other end of the regeneration return conveyor 5 extends above the temporary storage bin 3, so that during specific production, the coarse-grained materials removed by gravity dust removal in the feed box 11 can be sent into the regeneration return conveyor 5, and the regeneration return conveyor 5 directly conveys the coarse-grained materials to the temporary storage bin 3, thereby ensuring the grading of the regeneration material.

[0039] In the present invention, a recycled material return conveyor 5 is provided between a recycled material elevator 2 and a discharge box 12 of a recycled drying drum 1. The feed box 11 is located above the recycled material return conveyor 5, and the recycled material return conveyor 5 extends above a temporary storage bin 3. Meanwhile, a channel switching mechanism 6 capable of controlling the connection between the discharge box 12 and any one of the temporary storage bin 3 and the recycled material return conveyor 5 is provided in the discharge box 12. When the recycling equipment 100 starts production and at the end of production, the channel switching mechanism 6 can control the connection between the discharge box 12 and the recycled material return conveyor 5 to realize the conveyance of low-temperature recycled materials that do not meet the mixing temperature requirements back to the recycled drying drum 1 through the recycled material return conveyor 5 and the recycled material elevator 2 for continuous heating. At the same time, after the production of the recycling equipment 100 is completed, the channel switching mechanism 6 can also control the connection between the discharge box 12 and the recycled material return conveyor 5, and a certain amount of stones are circulated in the recycled material elevator 2, the recycled drying drum 1, and the recycled material return conveyor 5, so as to automatically clean the recycled materials adhered to the inside of the recycled drying drum 1. In addition, the coarse particle materials generated by gravity dust removal in the feed box 11 can be directly conveyed to the temporary storage bin 3 by the recycled material return conveyor 5, thereby ensuring the gradation of the recycled materials. Therefore, through the technical solution of the present invention, it is possible to avoid discharging low-temperature recycled materials that do not meet the requirements at the beginning and end of production, effectively reducing the waste of heating heat and materials. It is also possible to automatically clean the adhered recycled materials after production is completed, improving the cleaning efficiency, reducing the impact on the normal production cycle, and reducing the fatigue of the staff. In addition, it helps to ensure the gradation of the recycled materials.

[0040] In some embodiments of the present invention, a first discharge port 121 is provided on the side wall of the lower part of the discharge box 12, and a second discharge port 122 is provided at the bottom of the discharge box 12. The first discharge port 121 is connected to the other end of the recycled material return conveyor 5 through a first recycled material return chute 71, so that when the channel switching mechanism 6 controls the connection between the discharge box 12 and the recycled material return conveyor 5, the low-temperature recycled materials or stones can smoothly slide down to the recycled material return conveyor 5 through the first recycled material return chute 71. A temperature measuring device 711 is provided on the first recycled material return chute 71, and the temperature measuring device 711 can specifically adopt a temperature sensor.

[0041] In some embodiments of the present invention, the channel switching mechanism 6 includes a flap 61, a rotating shaft 62, and a driving assembly (not shown); the flap 61 is rotatably arranged in the discharge box 12 through the rotating shaft 62, the driving assembly is connected to the rotating shaft 62, and the driving assembly drives the rotating shaft 62 to drive the flap 61 to block one of the first discharge port 121 and the second discharge port 122. When the present invention is specifically implemented, the driving assembly may include a driving motor, a coupling, etc., and the output end of the driving motor is connected to one end of the rotating shaft 62 through the coupling, and at the same time, the driving assembly is arranged outside the discharge box 12 to avoid the adhesion of the recycled material on the driving assembly, which is beneficial to improving the service life of the driving assembly.

[0042] In some embodiments of the present invention, one end of the recycled material conveyor 5 is connected to the recycled material elevator 2 through the second recycled material chute 72, so that the low-temperature recycled material or stone conveyed by the recycled material conveyor 5 can smoothly slide into the recycled material elevator  2 through the second recycled material chute 72.

[0043] When the present invention is specifically implemented, the combustion device 4 includes a burner 41 and a vertical furnace 42. The vertical furnace 42 is connected to the side of the discharge box 12 facing away from the regeneration drying drum 1, and the burner 41 is installed on the vertical furnace 42. At the same time, the regeneration device 100 further includes a control device (not shown), and the regeneration drying drum 1, the recycled material elevator 2, the recycled material conveyor 5, the channel switching mechanism 6, etc. are all electrically connected to the control device to control the regeneration drying drum 1, the recycled material elevator 2, the recycled material conveyor 5, the channel switching mechanism 6, etc. to work by using the control device. Embodiment 2

[0044] Please refer to Figures 1 to 2 As shown, a production method of a regeneration device 100 with a self-cleaning function and no need for discharging of the present invention, wherein the specific structure and the technical effects that can be obtained of the regeneration device 100 are exactly the same as those in Embodiment 1. For details, please refer to the detailed introduction in Embodiment 1 and will not be repeated here; the production method includes the following steps:

[0045] When starting production, the discharge box 12 is controlled to be connected to the recycled material conveyor 5 through the channel switching mechanism 6, that is, the flap 61 is controlled to block the second discharge port 122; the low-temperature recycled material output from the recycled drying drum 1 is conveyed to the recycled material elevator 2 through the recycled material conveyor 5, and the recycled material elevator 2 conveys the low-temperature recycled material into the recycled drying drum 1 for secondary heating; because at the beginning of production, the recycled drying drum 1 is not preheated and the amount of recycled material fed into the recycled drying drum 1 is relatively small, the combustion device 4 usually starts with a small fire first. Due to the above factors, the recycled material just discharged into the discharge box 12 usually does not reach the predetermined stirring temperature. By using the recycled material conveyor 5 to convey the low-temperature recycled material back into the recycled drying drum 1 for secondary heating, compared with the traditional method of using a loader or a transport vehicle to pull it away and dump it, it can not only reduce the waste of heating heat, but also avoid material waste, achieving the effect of energy conservation and environmental protection;

[0046] The temperature of the recycled material fed into the recycled material conveyor 5 is detected in real time. When it is detected that the temperature of the recycled material reaches the set stirring temperature, the discharge box 12 is controlled to be connected to the temporary storage bin 3 through the channel switching mechanism 6, that is, the flap 61 is controlled to block the first discharge port 121, so as to carry out normal production; when it is detected that the temperature of the recycled material does not reach the set stirring temperature, the low-temperature recycled material is continuously sent back to the recycled drying drum 1 for heating through the recycled material conveyor 5 and the recycled material elevator 2.

[0047] In the present invention, the production method further includes the following steps:

[0048] After production is completed, a certain amount of stone material is fed into the recycled drying drum 1 through the recycled material elevator 2, and the recycled drying drum 1 is controlled to rotate so that the stone material flushes the inside of the recycled drying drum 1 to clean the recycled material adhered to the inside of the recycled drying drum 1; in the specific implementation of the present invention, in order to ensure the flushing and cleaning effect of the recycled drying drum 1, the particle size of the stone material fed into the recycled drying drum 1 is 13 - 16 mm;

[0049] The discharge box 12 is connected to the recycled material conveyor 5 through the channel switching mechanism 6, that is, the flap 61 is controlled to block the second discharge port 122, and the washed stones are sent back to the recycled material elevator 2 by the recycled material conveyor 5; at the same time, according to the actual cleaning requirements, the recycled material elevator 2 is controlled to circulate the stones into the recycled drying drum 1 for circulating flushing. The specific number of cycles can be set according to actual needs. When the present invention is specifically implemented, when a certain amount of stones is fed, there is no need to continue feeding into the recycled material elevator 2. At the same time, the stones are circulated and transported into the recycled drying drum 1 through the recycled material conveyor 5 and the recycled material elevator 2, and the inside of the recycled drying drum 1 is cleaned by circulating flushing. In this way, not only can the effect of automatic cleaning be achieved without manual cleaning, the cleaning efficiency can be improved, and the stones can be recycled, without the need to continuously transport the stones back and forth by vehicle.

[0050] Furthermore, after a certain amount of stones are fed into the recycled drying drum 1 through the recycled material elevator 2, the combustion device 4 is also controlled to heat the stones to the required set temperature to achieve a better effect of removing the adhered recycled material, and the combustion device 4 is turned off after reaching the set temperature. As a specific implementation manner of the present invention, the combustion device 4 can be controlled to heat the stones to 130° - 150°, and the combustion device 4 is turned off and no longer heated after reaching 130° - 150°.

[0051] The present invention flushes the recycled drying drum 1 by introducing stones with a particle size of 13 - 16 mm, and uses the combustion device 4 to heat the stones to 130° - 150°. The stones at a certain temperature can better clean the adhered recycled material in the recycled drying drum 1. At the same time, the stones can be recycled to continuously flush the recycled drying drum 1. This can not only ensure the effect of automatic cleaning, but also only need to heat the flushing stones once, without the need for the combustion device 4 to continuously provide heat, having the effect of energy conservation and environmental protection.

[0052] In the present invention, the production method further includes the following steps:

[0053] When finally producing, the cold material conveying system stops feeding. The discharge box 12 is connected to the recycled material conveyor 5 through the channel switching mechanism 6, that is, the flap 61 is controlled to block the second discharge port 122. The remaining low-temperature recycled material in the recycled drying drum 1 is transported to the recycled material elevator 2 by the recycled material conveyor 5. The recycled material elevator 2 transports the low-temperature recycled material back to the recycled drying drum 1, and at the same time, the combustion device 4 is controlled to turn on a small fire to briefly heat the recycled material;

[0054] The temperature of the recycled material fed into the recycled material conveyor 5 is detected in real time. When the temperature of the recycled material reaches the set stirring temperature, the combustion device 4 is turned off, and the discharge box 12 is controlled to communicate with the temporary storage bin 3 through the channel switching mechanism 6, that is, the flap 61 is controlled to block the first discharge port 121 to feed the last remaining recycled material into the temporary storage bin 3. When it is detected that the temperature of the recycled material does not reach the set stirring temperature, the low-temperature recycled material is circulated and conveyed back to the recycled drying drum 1 through the recycled material conveyor 5 and the recycled material elevator 2 for heating. Since at the end of production, when the cold material conveying system stops feeding, the combustion device 4 usually needs to be turned off. At this time, the recycled material remaining in the recycled drying drum 1 usually does not reach the stirring temperature requirement. Therefore, the present invention uses the recycled material conveyor 5 to convey the low-temperature recycled material back into the recycled drying drum 1 for reheating, which can not only avoid waste of recycled material, but also utilize the waste heat of the recycled drying drum 1. The combustion device 4 only needs to be turned on with a small fire and heated briefly, which can reduce fuel waste.

[0055] In the present invention, the production method further includes the following steps: The coarse-grained materials removed by gravity dust removal in the feed box 11 are fed into the recycled material conveyor 5, and the recycled material conveyor 5 is used to directly convey the coarse-grained materials to the temporary storage bin 3 to ensure the gradation of the recycled material.

[0056] Although the specific embodiments of the present invention have been described above, those skilled in the art of this technology should understand that the specific embodiments we described are illustrative rather than used to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered by the scope protected by the claims of the present invention.

Claims

1. A regeneration device with a self-cleaning function and without discharging, comprising a regeneration drying drum, a regeneration material elevator, a temporary storage bin and a combustion device. One end of the regeneration drying drum is provided with a feed box, and the other end of the regeneration drying drum is provided with a discharge box. The combustion device is connected to the discharge box, the regeneration material elevator is connected to the feed box, and the temporary storage bin is arranged below the discharge box; characterized in that: It further includes a recycled material conveyor and a channel switching mechanism. One end of the recycled material conveyor is connected to the recycled material elevator, and the other end of the recycled material conveyor is connected to the lower part of the discharge box; the channel switching mechanism is arranged in the discharge box, and the discharge box is controlled to be connected to one of the temporary storage bin and the recycled material conveyor through the channel switching mechanism.

2. The regenerative device with self-cleaning function and no need for discharging as claimed in claim 1, characterized in that: The feed box is located above the recycled material conveyor, and the other end of the recycled material conveyor extends above the temporary storage bin.

3. The regenerating device with a self-cleaning function and without discharging as described in claim 1, wherein: A first discharge port is provided on the side wall of the lower part of the discharge box, and a second discharge port is provided at the bottom of the discharge box; the first discharge port is connected to the other end of the recycled material conveyor through a first recycled material chute, and a temperature measuring device is provided on the first recycled material chute.

4. A regeneration device with a self-cleaning function and no need for discharging, as described in claim 3, characterized in that: The channel switching mechanism includes a flap, a rotating shaft and a driving component; the flap is rotatably arranged in the discharge box through the rotating shaft, the driving component is connected to the rotating shaft, and the rotating shaft is driven by the driving component to drive the flap to block one of the first discharge port and the second discharge port.

5. A regeneration device with a self-cleaning function and no need for discharging, as described in claim 1, characterized in that: One end of the recycled material conveyor is connected to the recycled material elevator through a second recycled material chute.

6. A production method of a regeneration device with a self-cleaning function and without discharging materials according to any one of claims 1-5, characterized in that The production method includes the following steps: When starting production, the discharge box is controlled to be connected to the recycled material conveyor through the channel switching mechanism; the low-temperature recycled material output by the recycled drying drum is conveyed to the recycled material elevator through the recycled material conveyor, and the recycled material elevator conveys the low-temperature recycled material into the recycled drying drum for secondary heating; The temperature of the recycled material fed into the recycled material conveyor is detected in real time, and when it is detected that the temperature of the recycled material reaches the set stirring temperature, the discharge box is controlled to be connected to the temporary storage bin through the channel switching mechanism, so as to carry out normal production; when it is detected that the temperature of the recycled material does not reach the set stirring temperature, the low-temperature recycled material is continuously sent back to the recycled drying drum for heating through the recycled material conveyor and the recycled material elevator.

7. The production method according to claim 6, characterized in that, It further includes the following steps: When the production is over, a certain amount of stones are fed into the recycled drying drum through the recycled material elevator, and the recycled drying drum is controlled to rotate so that the stones scour the inside of the recycled drying drum to clean the recycled material adhered to the inside of the recycled drying drum; The discharge box is controlled to be connected to the recycled material conveyor through the channel switching mechanism, and the scoured stones are sent back to the recycled material elevator by using the recycled material conveyor; at the same time, according to the actual cleaning requirement, the recycled material elevator is controlled to circulate the stones into the recycled drying drum for circulating scour.

8. The production method according to claim 7, characterized in that, After a certain amount of stones are fed into the recycled drying drum through the recycled material elevator, the combustion device is also controlled to heat the stones to the required set temperature, and the combustion device is turned off after reaching the set temperature.

9. The production method according to claim 6, characterized in that, It further includes the following steps: When producing for the last time, the cold material conveying system stops feeding, the discharge box is controlled to be connected to the recycled material conveyor through the channel switching mechanism, the remaining low-temperature recycled material in the recycled drying drum is conveyed to the recycled material elevator through the recycled material conveyor, the recycled material elevator conveys the low-temperature recycled material back to the recycled drying drum, and at the same time, the combustion device is controlled to turn on a small fire to briefly heat the recycled material; The temperature of the recycled material fed into the recycled material conveyor is detected in real time. When it is detected that the temperature of the recycled material reaches the set stirring temperature, the combustion device is turned off, and the discharge box is controlled to be connected to the temporary storage bin through the channel switching mechanism, so as to send the last remaining recycled material into the temporary storage bin; when it is detected that the temperature of the recycled material does not reach the set stirring temperature, the low-temperature recycled material is circulated and conveyed back to the recycled drying drum through the recycled material conveyor and the recycled material elevator for heating.

10. The production method according to claim 6, characterized in that, It further includes the following steps: the coarse-grained materials removed by gravity dust removal in the feed box are sent into the recycled material conveyor, and the recycled material conveyor is used to directly convey the coarse-grained materials to the temporary storage bin.

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