Asphalt mixing plant and asphalt production method thereof

Abstract

The invention provides an asphalt mixing plant and an asphalt production method thereof.The asphalt production method comprises the steps that a first material is provided according to production modes, and the production modes comprise a primary production mode and a regeneration production mode; putting the first material into a first forced intermittent stirrer, and mixing and stirring for a first preset time to obtain a semi-finished product material; putting the semi-finished product material into a transition storage bin, and storing for a second preset duration; providing a second material according to the production mode, wherein the second material comprises a semi-finished product material; putting the second material into a second forced intermittent stirrer, and mixing and stirring for a third preset time to obtain finished asphalt; wherein after the semi-finished product material is put into the transition storage bin, a new first material is put into the first forced intermittent stirrer. According to the asphalt production method, the time interval between the first forced intermittent stirrer and the second forced intermittent stirrer is fully utilized, multiple batches of materials are stirred at the same time, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of asphalt mixing technology, and in particular to an asphalt mixing station and an asphalt production method thereof. Background Art

[0002] At present, asphalt mixing plants are produced through a forced intermittent mixing main unit. In addition to being affected by factors such as incoming material metering, production efficiency is also affected by the mixing time cycle, which seriously limits the overall production efficiency. Therefore, how to improve the production efficiency of asphalt mixing plants is a technical problem that needs to be urgently solved in this field. Summary of the invention

[0003] The present application provides an asphalt mixing station and an asphalt production method thereof, which can achieve full mixing of materials and improve production efficiency at the same time.

[0004] In order to achieve the above objectives, this application adopts the following technical solutions:

[0005] On one hand, the present application provides an asphalt production method of an asphalt mixing station, wherein the asphalt mixing station comprises a first forced intermittent mixer, a transition storage bin, and a second forced intermittent mixer connected in sequence; the asphalt production method comprises:

[0006] Step 1: providing a first material according to a production mode, wherein the production mode includes a primary production mode and a recycled production mode;

[0007] Step 2: putting the first material into a first forced intermittent mixer and mixing it for a first preset time to obtain a semi-finished material;

[0008] Step 3: Put the semi-finished product into a transition storage bin and store it for a second preset time;

[0009] Step 4: providing a second material according to the production mode, wherein the second material includes a semi-finished product;

[0010] Step 5: adding the second material into the second forced intermittent mixer and mixing it for a third preset time to obtain a finished asphalt; wherein:

[0011] After the semi-finished product is put into the transition storage bin, new first material is put into the first forced intermittent mixer, and steps 2 to 5 are performed in sequence.

[0012] As an optional implementation, the first preset duration is set to be greater than the second preset duration.

[0013] As an optional embodiment, the step of adding a new first material into the first forced intermittent mixer further includes:

[0014] When the mixing time of the new first material in the first forced intermittent mixer reaches a fourth preset time, the semi-finished material in the transition storage bin during the previous mixing process is at least partially put into the second forced intermittent mixer as the second material; wherein the fourth preset time is set to be less than the first preset time.

[0015] As an optional implementation manner, the second preset duration, the third preset duration, and the fourth preset duration satisfy the following relationship:

[0016] T2+T4>T3, wherein T2 is the second preset time length, T3 is the third preset time length, and T4 is the fourth preset time length.

[0017] As an optional implementation, the first preset duration is set to be greater than or equal to 20 seconds and less than or equal to 30 seconds;

[0018] The second preset duration is set to be greater than or equal to 8 seconds and less than or equal to 12 seconds;

[0019] The third preset duration is set to be greater than or equal to 15 seconds and less than or equal to 25 seconds;

[0020] The fourth preset time length is set to be greater than or equal to 8 seconds and less than or equal to 12 seconds.

[0021] As an optional embodiment, when in the original production mode, the first material is a combination of asphalt, powder and aggregate;

[0022] When in raw production mode, the second material is a semi-finished material.

[0023] As an optional implementation, when in the regeneration production mode, the first material is a combination of recycled material, powder material and aggregate;

[0024] When in the regeneration production mode, the second material is a combination of semi-finished material and asphalt.

[0025] As an optional embodiment, the first preset time duration is configured to be determined according to the quality type of the finished asphalt; and / or the third preset time duration is configured to be determined according to the quality type of the finished asphalt.

[0026] As an optional embodiment, the asphalt mixing station also includes a weighing device, which is connected to the first forced intermittent mixer. When the discharge door of the first forced intermittent mixer is not closed, the weighing door of the weighing device is closed; and / or, when the discharge door of the second forced intermittent mixer is not closed, the discharge door of the transition storage bin is closed.

[0027] Another aspect of the present application provides an asphalt mixing plant, comprising: a first forced intermittent mixer, a transition storage bin, and a second forced intermittent mixer connected in sequence; and

[0028] A controller, the controller includes a memory and a processor, wherein the memory stores a machine executable program, and when the machine executable program is executed by the processor, the asphalt production method according to any one of the above items is implemented.

[0029] The asphalt production method of the present application, since after the semi-finished material is put into the transition storage bin, the new first material is put into the first forced intermittent mixer, the first forced intermittent mixer is emptied, and the mixing of the second batch can be done without waiting for the mixing of the first batch to be completely completed. The second batch of the first material can be put into the emptied first forced intermittent mixer, so that when the first batch is being stored in the transition storage bin or when being mixed in the second forced intermittent mixer, the second batch of the first material has already started to be mixed in the first forced intermittent mixer, so that the first forced intermittent mixer and the second forced intermittent mixer mix the materials in stages, so that the materials are mixed more fully, and the time interval between the first forced intermittent mixer and the second forced intermittent mixer is fully utilized, and multiple batches of materials are mixed simultaneously, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 This is a structural framework diagram of an asphalt mixing plant in one embodiment of the present application;

[0032] Figure 2 This is a control principle framework diagram of an asphalt mixing plant in one embodiment of the present application;

[0033] Figure 3 This is a flow chart of an asphalt production method in one embodiment of the present application.

[0034] Description of reference numerals:

[0035] 1. Recycled material outlet; 12. Aggregate outlet; 13. Asphalt outlet; 14. First channel; 15. Second channel; 16. Third channel; 17. Fourth channel; 18. On-off valve; 20. Three-way valve; 21. Inlet; 22. First outlet; 23. Second outlet; 300. Controller; 310. Processor; 320. Memory; 322. Machine executable program. DETAILED DESCRIPTION

[0036] In the prior art, asphalt mixing plants use a forced intermittent mixing main machine for production. The production efficiency is not only affected by factors such as incoming material metering, but also by the mixing time cycle, which seriously limits the overall production efficiency.

[0037] In order to overcome the defects in the prior art, the present application provides an asphalt mixing station and an asphalt production method thereof. Since the asphalt mixing station adopts a first forced intermittent mixer and a second forced intermittent mixer to grade and mix materials, the materials are mixed more fully, and the time interval between the first forced intermittent mixer and the second forced intermittent mixer is fully utilized to mix multiple batches of materials at the same time, thereby improving production efficiency.

[0038] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0039] See also Figure 1 First, the structure of an asphalt mixing station in one embodiment of the present application is introduced.

[0040] The asphalt mixing plant may include a recycled material system, an aggregate system, a mineral powder system and an asphalt system.

[0041] The regeneration system is used for supplying regenerated material, and the regenerated material system has a regenerated material outlet 11 .

[0042] The recycled material system can regenerate the recycled old pavement through asphalt recycling technology to obtain recycled materials. After mixing these recycled materials with new asphalt, finished asphalt that meets the requirements can be obtained, which can save a lot of production costs and achieve sustainable development.

[0043] The regeneration system may include a regeneration material input part and a regeneration material output part. The regeneration material input part includes a regeneration material belt conveyor, a regeneration material conveyor and a transition material hopper connected in sequence. The regeneration material output part includes a regeneration material elevator, a regeneration material temporary storage bin, a regeneration material weighing scale and a regeneration chute connected in sequence. The outlet of the regeneration chute can be used as a regeneration material outlet 11.

[0044] The aggregate system is used to supply aggregates. Aggregates are also called aggregates. Aggregates can play a role of skeleton and filling in the finished asphalt, making the finished asphalt have better formability. According to the requirements of different finished asphalts, aggregates can be crushed by planing and milling, and divided into multiple grades by primary coarse screening (for example, 0-3mm aggregates, 3mm-5mm aggregates, and aggregates larger than 5mm), and then used in combination according to the formula required by the finished asphalt. In some specific embodiments, the aggregates can be crushed stone, crushed gravel, etc.

[0045] The aggregate system also includes an aggregate input part, a drying part and an aggregate output part which are connected in sequence. The drying part is used as a device for heating aggregates in the aggregate system to dry the aggregates. The aggregate input part includes an aggregate belt conveyor, an aggregate conveyor and a first aggregate elevator which are connected in sequence. The aggregate output part includes a second aggregate elevator, a vibrating screen, an aggregate bin, an aggregate scale and an aggregate buffer bucket which are connected in sequence.

[0046] The path of the aggregate is: aggregate conveyor belt → aggregate conveyor → first aggregate elevator → drying section (first drying space) → second aggregate elevator → vibrating screen → aggregate bin → aggregate scale → aggregate buffer hopper, and the outlet of the aggregate buffer hopper serves as the aggregate outlet 12 of the aggregate system.

[0047] In addition, the drying section also has a second drying space that is independent of the first drying space. The second drying space can be used to heat the recycled material, that is, to achieve thermal regeneration.

[0048] When the recycled material system is undergoing hot regeneration, the path of the recycled material is: recycled material belt conveyor → recycled material conveyor → transition hopper → second channel 15 → drying section (second drying space) → third channel 16 → recycled material elevator → recycled material temporary storage bin → recycled material weighing scale → regeneration chute → recycled material outlet 11.

[0049] Furthermore, the transition hopper is connected to the regenerated material elevator through the first channel 14. The transition hopper is connected to the drying section through the second channel 15, and the drying section is connected to the regenerated material elevator through the third channel 16. The regeneration chute is connected to the first forced intermittent mixer through the fourth channel 17, and the fourth channel 17 is provided with an on-off valve 18 to control the on-off of the fourth channel 17.

[0050] When the recycled material system is cold regenerated, the path of the recycled material is: recycled material belt conveyor → recycled material conveyor → transition hopper → first channel 14 → recycled material elevator → recycled material temporary storage bin → recycled material weighing scale → regeneration chute → recycled material outlet 11.

[0051] When the recycled material system is undergoing hot regeneration, the path of the recycled material is: recycled material belt conveyor → recycled material conveyor → transition hopper → second channel 15 → drying section (second drying space) → third channel 16 → recycled material elevator → recycled material temporary storage bin → recycled material weighing scale → regeneration chute → recycled material outlet 11.

[0052] The asphalt system is used to supply asphalt. The asphalt here is new asphalt material. The new asphalt can be wrapped on the surface of the mineral material, firmly bonding the mineral material particles of various particle sizes together to form an asphalt mixture with certain strength and stability. In addition, the new asphalt can also fill the gaps between mineral material particles and adjust the performance of the asphalt mixture.

[0053] The asphalt system may further include an asphalt conveying section and an asphalt heating section.

[0054] Furthermore, the asphalt delivery unit may further include an asphalt tank, a first asphalt pump, an asphalt scale and a second asphalt pump. The first asphalt pump delivers the asphalt in the asphalt tank to the asphalt scale, and after being weighed on the asphalt scale, the asphalt is delivered to the outside by the second asphalt pump.

[0055] The asphalt heating unit is used to heat asphalt. At room temperature, the viscosity of asphalt is high, and it is in a semi-solid or solid state, with poor fluidity, which is not conducive to construction operations. Heating can reduce the viscosity of asphalt and make it have good fluidity. During the transportation and pumping of asphalt, good fluidity helps asphalt pass through pipelines, pumps and other equipment smoothly, avoiding problems such as blockage and transportation difficulties, and improving the efficiency and convenience of construction.

[0056] Specifically, the asphalt heating part can also use a thermal oil furnace. The thermal oil furnace directly inserts the heater into the thermal oil for direct heating, and uses a high-temperature oil pump to circulate the liquid phase to transport the heated thermal oil to the asphalt tank, and then returns to the oil furnace from the oil outlet of the asphalt tank for heating, forming a complete circulation heating system.

[0057] The mineral powder system supplies powder. In the process of asphalt mixing, adding an appropriate amount of mineral powder can improve the physical and chemical adsorption capacity of the finished asphalt, which can produce a large amount of structural asphalt, reduce the production of free asphalt, effectively improve the cohesion of the mixture interaction, and also stabilize its waterproof performance.

[0058] The mineral powder system includes a mineral powder bin which can be connected to a powder screen for screening, and the qualified mineral powder screened out can be fed into the first forced intermittent mixer through a screw feeder.

[0059] The aggregate system may further include a dust collecting section. The drying section is used to dry the aggregate, and the drying section has a flue for flue gas to pass through. The dust collecting section is arranged at the outlet of the flue to collect dust in the flue gas. The mineral powder system also has a recovery bin, which is connected to the dust collecting section to pass the collected dust into the recovery bin. The recovery bin and the mineral powder bin can be connected to a powder screen for screening, and the qualified mineral powder screened out can be transported outward through a screw feeder.

[0060] The asphalt mixing plant may further include a first forced intermittent mixer, a transition storage bin and a second forced intermittent mixer which are connected in sequence.

[0061] In this embodiment, the first forced intermittent mixer and the second forced intermittent mixer are mixing equipment. Various required materials are discharged into the first forced intermittent mixer and the second forced intermittent mixer to achieve uniform mixing, and finally produce asphalt.

[0062] See also Figure 2 In some embodiments, the asphalt mixing plant may further include a controller 300, the controller 300 includes a memory 320 and a processor 310, wherein the memory 320 stores a machine executable program 322, and when the machine executable program 322 is executed by the processor 310, an asphalt production method is implemented, which can not only achieve sufficient mixing, but also improve production efficiency.

[0063] See also Figure 3 In some embodiments, the asphalt production method comprises the following steps:

[0064] Step 1: providing a first material according to a production mode, wherein the production mode includes a primary production mode and a recycled production mode.

[0065] Step 2: Put the first material into a first forced intermittent mixer and mix it for a first preset time to obtain a semi-finished material.

[0066] Step 3: Put the semi-finished product into a transition storage bin and store it for a second preset time period.

[0067] Step 4: Provide a second material according to the production mode, wherein the second material includes a semi-finished product.

[0068] Step 5: Add the second material into the second forced intermittent mixer and mix it for a third preset time to obtain finished asphalt.

[0069] Among them, after the semi-finished product material is put into the transition storage bin, the new first material is put into the first forced intermittent mixer, and steps 2 to 5 are executed in sequence.

[0070] In this embodiment, the first material and the second material involved in synthesizing the finished asphalt are stirred in the first forced intermittent mixer and the second forced intermittent mixer respectively, so that the stirring time is prolonged and the fluidity of the product mixture is better.

[0071] First, since the first materials required for the original production mode and the regeneration production mode are different, the first material and the second material required need to be configured according to the production mode in step one and step four.

[0072] Then the first material is put into the first forced intermittent mixer and mixed for the first preset time to obtain a semi-finished material. Then the semi-finished material is put into a transition storage bin for storage. Finally, the second material is added to the second forced intermittent mixer and mixed to obtain a finished asphalt.

[0073] In this embodiment, after the semi-finished product is put into the transition storage bin, new first material is put into the first forced intermittent mixer, and steps 2 to 5 are performed in sequence.

[0074] For example, during the first batch of mixing, the first material is first provided according to the production mode, and the first material is put into the first forced intermittent mixer for mixing and mixing for a first preset time to obtain a semi-finished material, and the semi-finished material is put into a transition storage bin. At this time, the first forced intermittent mixer is emptied, and the mixing of the second batch can be done without waiting for the mixing of the first batch to be completely completed. The first material of the second batch can be put into the emptied first forced intermittent mixer, so that when the first batch is stored in the transition storage bin or when it is mixed in the second forced intermittent mixer, the first material of the second batch has already started to be mixed in the first forced intermittent mixer.

[0075] Generally speaking, the mixing time of the first material in the first forced intermittent mixer is different from the mixing time of the second material in the second forced intermittent mixer. Therefore, the setting of the transition storage bin can achieve a uniform mixing rhythm during the continuous mixing process, so that each mixing process is complete and the rhythm of multiple mixing processes is compact, thereby ensuring that the total mixing time of the finished material is not reduced while improving production efficiency.

[0076] In this embodiment, since the first forced intermittent mixer and the second forced intermittent mixer mix the materials in stages, the materials are mixed more fully, and the time interval between the first forced intermittent mixer and the second forced intermittent mixer is fully utilized to mix multiple batches of materials simultaneously, thereby improving production efficiency.

[0077] In some embodiments, the first preset duration is set to be greater than the second preset duration.

[0078] The first preset time is the time for mixing the first material in the first forced intermittent mixer, and the second preset time is the time for storing the semi-finished material in the transition storage bin. The first preset time is set to be longer than the second preset time to ensure that the semi-finished material can be discharged from the transition storage bin in time to avoid mixing the next batch of semi-finished materials with the previous batch of semi-finished materials in the transition storage bin.

[0079] In some embodiments, the step of adding a new first material into the first forced intermittent mixer also includes: when the mixing time of the new first material in the first forced intermittent mixer reaches a fourth preset time, the semi-finished material in the transition storage bin during the previous mixing process is at least partially added to the second forced intermittent mixer as the second material; wherein the fourth preset time is set to be less than the first preset time.

[0080] That is, the first material of the first batch is put into the first forced intermittent mixer, pre-mixed for the first preset time and then placed in a transition storage bin. At this time, the first material of the second batch is put into the first forced intermittent mixer for the second cycle of mixing. When the second batch of materials is mixed in the first forced intermittent mixer for the fourth preset time, the semi-finished material in the transition bin is put into the second forced intermittent mixer and fully mixed again for the third preset time, thereby ensuring that the total mixing time of the finished material is not reduced, while improving the mixing efficiency of the entire cycle.

[0081] Furthermore, the second preset time length, the third preset time length and the fourth preset time length satisfy the following relationship: T2+T4>T3, wherein T2 is the second preset time length, T3 is the third preset time length, and T4 is the fourth preset time length.

[0082] In this embodiment, the sum of the second preset time and the fourth preset time can be understood as the time that the first material of the second batch spends in the first forced intermittent mixer and the transition storage bin, and the third preset time is the time that the second material is mixed and stirred in the second forced intermittent mixer. If T2+T4>T3, it can ensure that the second forced intermittent mixer can be discharged in time, avoiding the mixing of the two batches of materials in the second forced intermittent mixer.

[0083] In some embodiments, the first preset duration is set to be greater than or equal to 20s and less than or equal to 30s, for example, 20s, 25s, 30s, etc.

[0084] In some embodiments, the second preset duration is set to be greater than or equal to 8s and less than or equal to 12s, for example, 8s, 10s, 12s, etc.

[0085] In some embodiments, the third preset duration is set to be greater than or equal to 15s and less than or equal to 25s, for example, 15s, 20s, 25s, etc.

[0086] In some embodiments, the fourth preset duration is set to be greater than or equal to 8s and less than or equal to 12s, for example, 8s, 10s, 12s, etc.

[0087] In some embodiments, when in the primary production mode, the first material is a combination of asphalt, powder, and aggregate.

[0088] In some embodiments, when in raw production mode, the second material is a semi-finished material.

[0089] Specifically, when in the original production mode, the on-off valve 18 is disconnected, that is, the recycled material is disconnected from entering the mixing system, and the inlet 21 of the three-way valve 20 is connected to the first outlet 22, so that the asphalt can directly enter the first forced intermittent mixer to be mixed with mineral powder and aggregate, so that the first forced intermittent mixer can be used to mix and stir the aggregate, powder and asphalt to obtain semi-finished materials, which are discharged into the transition storage bin, and then the semi-finished materials are discharged into the second forced intermittent mixer for secondary mixing to finally obtain finished asphalt.

[0090] In some embodiments, when in the recycling production mode, the first material is a combination of recycled material, powder material and aggregate.

[0091] In some embodiments, when in the regeneration production mode, the second material is a combination of semi-finished material and asphalt.

[0092] Specifically, when in the regeneration production mode, the on-off valve 18 is connected, the recycled material enters the mixing system, the inlet 21 of the three-way valve 20 is connected to the second outlet 23, and the asphalt outlet 13 is connected to the second forced intermittent mixer, so that the first forced intermittent mixer is used to mix and stir the aggregate and powder to obtain semi-finished materials, which are discharged into the transition storage bin, and then the semi-finished materials and asphalt are discharged into the second forced intermittent mixer for secondary mixing to finally obtain finished asphalt.

[0093] In some embodiments, the first preset duration is configured to be determined based on the quality type of the finished asphalt; and / or the third preset duration is configured to be determined based on the quality type of the finished asphalt.

[0094] Generally speaking, the longer the stirring time, the better the quality of the finished asphalt. That is, the stirring time required for different qualities of finished asphalt is set to be different. During the production process, the first preset time and the third preset time of the response can be determined according to the quality of the finished asphalt to be produced, so that the finished asphalt of the corresponding quality type can be produced.

[0095] Specifically, the asphalt mixing plant can test the first preset time and the third preset time corresponding to the quality of each finished asphalt according to the properties of the first forced intermittent mixer and the second forced intermittent mixer before leaving the factory, and store them in the memory. During the production process, the operator can select the target quality type to determine the first preset time and the third preset time.

[0096] In addition, the quality parameters of the finished asphalt can also be input, and the system automatically adjusts the first preset time and / or the third preset time according to the input quality parameters of the finished asphalt. If the quality of the finished asphalt is high, the first preset time and / or the third preset time will be automatically shortened, that is, the stirring time will be shortened; if the quality of the finished asphalt is poor, the first preset time and / or the third preset time will be automatically increased, that is, the stirring time will be extended.

[0097] In some embodiments, the asphalt mixing station further comprises a weighing device, which is connected to the first forced intermittent mixer. When the discharge door of the first forced intermittent mixer is not closed, the weighing door of the weighing device is closed.

[0098] When the discharge door of the second forced intermittent mixer is not closed, the discharge door of the transition storage bin is closed.

[0099] Such a design can effectively ensure that new materials are added after the materials in the first forced intermittent mixer and the second forced intermittent mixer are unloaded, thereby ensuring that each feeding does not affect each other and the materials will not overflow.

[0100] The present application is described below in some more detailed embodiments.

[0101] When in the original production mode, the first material is powder, aggregate and asphalt. After the powder, aggregate and asphalt are measured by the powder scale, aggregate scale and asphalt scale, they are respectively put into the first forced intermittent mixer for pre-mixing for 30 seconds, and then placed in the transition storage bin. After being stored in the transition storage bin for 10 seconds, they are discharged into the second forced intermittent mixer, and the finished asphalt is obtained after being mixed in the second forced intermittent mixer for 20 seconds. After the semi-finished material is put into the transition storage bin, the new first material is put into the first forced intermittent mixer, and when the new first material is mixed in the second cycle in the first forced intermittent mixer, the semi-finished material in the transition storage bin is put into the second forced intermittent mixer after 10 seconds, and fully mixed again for 20 seconds, so as to ensure that the total mixing time of the finished material is not reduced, and the mixing efficiency of the whole cycle is improved.

[0102] When in the regeneration production mode, the first material is powder, aggregate and recycled material. After the powder, aggregate and recycled material are measured by the powder scale, aggregate scale and recycled material scale, they are respectively put into the first forced intermittent mixer for pre-mixing for 30 seconds, and then placed in the transition storage bin. After being stored in the transition storage bin for 10 seconds, they are discharged into the second forced intermittent mixer, and asphalt is added and mixed in the second forced intermittent mixer for 20 seconds to obtain the finished asphalt. After the semi-finished material is put into the transition storage bin, the new first material is put into the first forced intermittent mixer, and when the new first material is mixed in the first forced intermittent mixer for the second cycle, the semi-finished material in the transition storage bin is put into the second forced intermittent mixer after 10 seconds, and fully mixed again for 20 seconds, so as to ensure that the total mixing time of the finished material is not reduced, and the mixing efficiency of the whole cycle is improved.

[0103] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0104] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.

[0105] It should be easily understood that the terms “on,” “above,” and “over” in this application should be interpreted in the broadest manner, so that “on” means not only “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” includes not only the meaning of “above something” or “over,” but also may include the meaning of “above something” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0106] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90° or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0107] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An asphalt production method of an asphalt mixing plant, the asphalt mixing plant comprising a first forced intermittent mixer, a transition storage bin and a second forced intermittent mixer connected in sequence; The asphalt production method comprises: Step 1: providing a first material according to a production mode, wherein the production mode includes a primary production mode and a regeneration production mode; Step 2: putting the first material into the first forced intermittent mixer and mixing it for a first preset time to obtain a semi-finished product; Step 3: putting the semi-finished product into the transition storage bin and storing it for a second preset time; Step 4: providing a second material according to the production mode, wherein the second material includes the semi-finished material; Step 5: adding the second material into the second forced intermittent mixer and mixing it for a third preset time to obtain a finished asphalt; wherein: After the semi-finished material is put into the transition storage bin, new first material is put into the first forced intermittent mixer, and steps 2 to 5 are performed in sequence.

2. The asphalt production method according to claim 1, wherein: The first preset time length is set to be greater than the second preset time length.

3. The asphalt production method according to claim 2, wherein: The step of adding new first material into the first forced intermittent mixer also includes: When the mixing time of the new first material in the first forced intermittent mixer reaches a fourth preset time, the semi-finished material in the transition storage bin during the previous mixing process is at least partially put into the second forced intermittent mixer as the second material; wherein the fourth preset time is set to be less than the first preset time.

4. The asphalt production method according to claim 3, wherein: The second preset duration, the third preset duration, and the fourth preset duration satisfy the following relationship: T2+T4>T3, wherein T2 is the second preset time length, T3 is the third preset time length, and T4 is the fourth preset time length.

5. The asphalt production method according to claim 3, wherein: The first preset duration is set to be greater than or equal to 20 seconds and less than or equal to 30 seconds; The second preset time length is set to be greater than or equal to 8 seconds and less than or equal to 12 seconds; The third preset duration is set to be greater than or equal to 15 seconds and less than or equal to 25 seconds; The fourth preset duration is set to be greater than or equal to 8 seconds and less than or equal to 12 seconds.

6. The asphalt production method according to any one of claims 1 to 5, wherein: When in the original production mode, the first material is a combination of asphalt, powder and aggregate; When in the original production mode, the second material is the semi-finished material.

7. The asphalt production method according to any one of claims 1 to 5, wherein: When in the regeneration production mode, the first material is a combination of recycled material, powder material and aggregate; When in the regeneration production mode, the second material is a combination of the semi-finished material and asphalt.

8. The asphalt production method according to any one of claims 1 to 5, wherein: The first preset duration is configured to be determined according to the quality type of the finished asphalt; and / or, The third preset duration is configured to be determined according to the quality type of the finished asphalt.

9. The asphalt production method according to any one of claims 1 to 5, wherein: The asphalt mixing station further comprises a weighing device, which is connected to the first forced intermittent mixer, and when the discharge door of the first forced intermittent mixer is not closed, the weighing door of the weighing device is closed; and / or, When the discharge door of the second forced intermittent mixer is not closed, the discharge door of the transition storage bin is closed.

10. An asphalt mixing plant, comprising: A first forced intermittent mixer, a transition storage bin and a second forced intermittent mixer connected in sequence; as well as A controller comprising a memory and a processor, wherein the memory stores a machine executable program, and when the machine executable program is executed by the processor, the asphalt production method according to any one of claims 1 to 9 is implemented.

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