Asphalt mixture stirring equipment with multiple production modes

Abstract

The utility model relates to the technical field of asphalt mixing equipment, in particular to asphalt mixture mixing equipment with multiple production modes, which is characterized by comprising a cold aggregate batching device, a mineral powder metering and adding device, an asphalt metering and adding device, a continuous drying and mixing drum, an intermittent mixing device and a finished product bin, the cold aggregate batching devices are connected with the feeding ends of the continuous drying and stirring rollers, the mineral powder metering and adding devices and the asphalt metering and adding devices are connected with the continuous drying and stirring rollers and the intermittent stirring device respectively, and the two cold aggregate batching devices and the two continuous drying and stirring rollers are arranged side by side in a one-to-one correspondence mode. And a discharging switching device is arranged between the discharging ends of the two continuous drying and stirring rollers. The utility model has three production modes of continuous production, intermittent production and combination of continuous production and intermittent production, can realize multiple purposes by one machine, has good adaptability, and can well meet the multifunctional requirements of the market.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt mixing equipment, in particular to asphalt mixture mixing equipment with multiple production modes. Background Art

[0002] With the rapid development of asphalt pavement construction in my country and continued investment in infrastructure, the demand for asphalt mixture dosage and formulation varies across different road grades. While projects requiring large volumes of asphalt mixture are increasing, smaller projects, such as those for maintaining older roads, are also emerging as the period of major road maintenance and repair approaches. Furthermore, the industry's demand for asphalt mixtures is becoming increasingly diverse. Existing asphalt mixing equipment typically utilizes a single mixing mode, such as intermittent mixing or continuous mixing. This makes it difficult for asphalt mixing equipment with a single mixing mode to adapt to the ever-changing market, requiring manufacturers to deploy multiple units to meet the market's multi-functional demands. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an asphalt mixture mixing equipment with three production modes: continuous, intermittent and a combination of continuous and intermittent, which can realize multi-purpose use of one machine, has good adaptability, and can well meet the multi-functional needs of the market.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: an asphalt mixture mixing equipment with multiple production modes, including a cold aggregate batching device, a mineral powder metering and adding device, an asphalt metering and adding device, a continuous drying and stirring drum, an intermittent stirring device and a finished product bin, the cold aggregate batching device is connected to the feed end of the continuous drying and stirring drum, the mineral powder metering and adding device and the asphalt metering and adding device are respectively connected to the continuous drying and stirring drum and the intermittent stirring device, the number of cold aggregate batching devices and the number of continuous drying and stirring drums are two, one-to-one corresponding and arranged side by side, and a discharge switching device is provided between the discharge ends of the two continuous drying and stirring drums, the discharge switching device is used to make both continuous drying and stirring drums discharge materials to the finished product bin, to make both continuous drying and stirring drums discharge materials to the intermittent stirring device, or to make one of the continuous drying and stirring drums discharge materials to the finished product bin and the other continuous drying and stirring drum discharge materials to the intermittent stirring device.

[0005] Furthermore, it also includes a lifting main building, two continuous drying and stirring drums are arranged on the top of the lifting main building and lifted to a high position by the lifting main building, and the finished product warehouse is arranged on the lifting main building and located below the continuous drying and stirring drums.

[0006] Furthermore, the discharge switching device includes a discharge hopper, a flip switching mechanism and a conveyor. The discharge hopper and the conveyor are both arranged on the main lifting building. The discharge hopper is provided with two input ends respectively connected to the discharge ends of the two continuous drying and mixing drums, a first output end connected to the finished product warehouse and two second output ends. A conveyor is provided directly below the two output ends. The conveyor is used to transport the material output from the second output end to the intermittent stirring device. The flip switching mechanism is provided on the discharge hopper and is used to connect both input ends with the first output end, to connect the two input ends with the two second output ends respectively, or to connect one of the input ends with the first output end and the other input end with the corresponding second output end.

[0007] Furthermore, the discharge hopper includes a first hopper body and two second hopper bodies. The first hopper body is Y-shaped and arranged longitudinally. Two input ends are provided at the upper end of the first hopper body, and a first output end is provided at the lower end of the first hopper body. The two second hopper bodies are arranged in parallel and spaced apart, and their upper ends are respectively fixedly connected to the first hopper body near the two input ends. The second hopper body is in a straight line shape and arranged downwardly. A second output end is provided at the lower end of the second hopper body. The connection between the two second hopper bodies and the first hopper body is provided with a flip switching mechanism.

[0008] Furthermore, the flip switching mechanism includes a flip plate and a flip drive assembly. The flip plate is arranged in the discharge hopper and fixedly mounted on the rotating shaft. Both ends of the rotating shaft are rotatably mounted at the connection between the second bucket body and the first bucket body through seat bearings. The flip drive assembly is arranged on the outside of the discharge hopper and is used to drive the rotating shaft to rotate to drive the flip plate to flip and switch between the first output position and the second output position.

[0009] Furthermore, the flip drive assembly includes a swing rod and a linear drive member, one end of the swing rod is fixedly connected to one end of the rotating shaft, the other end of the swing rod is hinged to one end of the linear drive member, and the other end of the linear drive member is hinged to the first bucket body.

[0010] Furthermore, it also includes a bucket elevator, which is arranged between the cold aggregate batching device and the continuous drying and stirring drum. The cold aggregate transported by the cold aggregate batching device is sent to the continuous drying and stirring drum through the bucket elevator.

[0011] Furthermore, an installation platform for installing a continuous drying and stirring drum is provided on the top of the main supporting building, and the continuous drying and stirring drum is arranged to be inclined downward toward the side of its discharge end.

[0012] From the above description, it can be seen that the asphalt mixture mixing equipment provided by the utility model has multiple production modes, which has the following beneficial effects: through the setting of two continuous drying and mixing drums, and the use of the discharging switching device, when the two continuous drying and mixing drums both produce asphalt finished mixtures and discharge them to the finished product bin through the discharging switching device, a continuous production mode can be realized; when the two continuous drying and mixing drums both produce hot aggregates and discharge them to the intermittent mixing device through the discharging switching device to produce asphalt finished mixtures, an intermittent production mode can be realized; when one of the continuous drying and mixing drums produces asphalt finished mixtures and the other continuous drying and mixing drum produces hot aggregates and discharges them to the finished product bin and to the intermittent mixing device through the discharging switching device to produce asphalt finished mixtures, a production mode combining intermittent and continuous modes can be realized, thereby enabling the asphalt mixture mixing equipment to have three production modes, realizing multiple uses of one machine, with a small overall footprint and high adaptability, which can well meet the market's multi-functional needs, can adapt to the large-capacity operation required for high-grade pavement, and meet maintenance-type small-batch production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a top view of an asphalt mixture mixing plant with multiple production modes according to the present invention.

[0014] Figure 2 This is a right view of an asphalt mixture mixing plant with multiple production modes according to the present invention.

[0015] Figure 3 This is a front view of an asphalt mixture mixing plant with multiple production modes according to the utility model when it is not equipped with a cold aggregate batching device and a bucket elevator.

[0016] Figure 4 It is a schematic diagram of the three-dimensional structure when the flip switching mechanism is connected to the discharge hopper.

[0017] Figure 5 for Figure 4 A local enlarged schematic diagram of point A in the middle.

[0018] Figure 6 This is a structural diagram of the discharge switching device when it is in the first output position.

[0019] Figure 7 This is a structural diagram of the discharge switching device when it is in the second output position.

[0020] In the figure: 1-cold aggregate batching device; 2-continuous drying and mixing drum; 3-intermittent mixing device; 4-finished product warehouse; 5-discharging switching device; 51-discharging hopper; 511-first hopper body; 5111-input end; 5112-first output end; 512-second hopper body; 5121-second output end; 52-flip switching mechanism; 521-flip plate; 522-flip drive assembly; 5221-swing rod; 5222-linear drive member; 523-rotating shaft; 524-seat bearing; 53-conveyor; 6-lifting main building; 7-bucket elevator. DETAILED DESCRIPTION

[0021] The present invention is further described below through specific implementation methods.

[0022] like Figures 1 to 7 As shown, the utility model describes an asphalt mixture mixing equipment with multiple production modes, including a cold aggregate batching device 1, a mineral powder metering and adding device, an asphalt metering and adding device, a continuous drying and stirring drum 2, an intermittent stirring device 3 and a finished product bin 4, wherein the cold aggregate batching device 1 is connected to the feed end of the continuous drying and stirring drum 2, the mineral powder metering and adding device and the asphalt metering and adding device are respectively connected to the continuous drying and stirring drum 2 and the intermittent stirring device 3, the number of the cold aggregate batching device 1 and the continuous drying and stirring drum 2 are both two, one-to-one corresponding and arranged side by side, and a discharge switching device 5 is provided between the discharge ends of the two continuous drying and stirring drums 2, the discharge switching device 5 is used to make the two continuous drying and stirring drums 2 discharge materials to the finished product bin 4, to make the two continuous drying and stirring drums 2 discharge materials to the intermittent stirring device 3, or to make one of the continuous drying and stirring drums 2 discharge materials to the finished product bin 4 and the other continuous drying and stirring drum 2 discharge materials to the intermittent stirring device 3.

[0023] By setting up the two continuous drying and stirring drums 2 and cooperating with the use of the discharging switching device 5, when the two continuous drying and stirring drums 2 both produce asphalt finished mixtures and discharge them to the finished product bin 4 through the discharging switching device 5, a continuous production mode can be realized. When the two continuous drying and stirring drums 2 both produce hot aggregates and discharge them to the intermittent stirring device 3 through the discharging switching device 5 to produce asphalt finished mixtures, an intermittent production mode can be realized. When one of the continuous drying and stirring drums 2 produces asphalt finished mixtures and the other continuous drying and stirring drum 2 produces hot aggregates and discharges them to the finished product bin 4 and to the intermittent stirring device 3 through the discharging switching device 5 to produce asphalt finished mixtures, a production mode combining intermittent and continuous modes can be realized. As a result, the asphalt mixture mixing equipment has three production modes, can realize multi-purpose use of one machine, has a small overall footprint and high adaptability, can well meet the multi-functional needs of the market, can adapt to the large-capacity operation required for high-grade pavement, and can meet the maintenance-type small-batch production.

[0024] Correspondingly, the continuous drying and stirring drum 2 includes a drum body, a drum feed port is provided at one end of the drum body and a drum discharge port is provided at the other end, and the direction from the drum feed port to the drum discharge port in the drum body is a drying zone and a stirring zone in sequence, and the drum body is also provided with a first powder feed port and a first hot asphalt feed port which are communicated with the stirring zone, the first powder feed port is connected to the mineral powder metering and adding device, and the first asphalt feed port is connected to the asphalt metering and adding device, and a burner is provided on the drum body at the end where the drum discharge port is provided, and the burner sprays combustion flames toward the drying zone. Since the continuous drying and stirring drum 2 can adopt the structure in the prior art, it will not be described in detail here.

[0025] Correspondingly, the intermittent stirring device 3 includes a stirring main building and a vibrating screen, an aggregate bin, an aggregate scale and a stirring cylinder arranged on the stirring main building from top to bottom. The stirring cylinder is provided with a second powder feed port and a second hot asphalt feed port. The second powder feed port is connected to the mineral powder metering and adding device, and the second asphalt feed port is connected to the asphalt metering and adding device. Since the intermittent stirring device 3 can adopt the structure in the existing technology, it will not be described in detail here.

[0026] In addition, the cold aggregate batching device 1, the mineral powder metering and adding device, and the asphalt metering and adding device can all adopt structures in the existing technology, so they will not be described in detail here.

[0027] In addition, the asphalt mixture mixing equipment also includes a lifting main building 6, and the two continuous drying and mixing drums 2 are both arranged on the top of the lifting main building 6 and lifted to a high position by the lifting main building 6. The finished product bin 4 is arranged on the lifting main building 6 and is located below the continuous drying and mixing drum 2. In this way, by setting the continuous drying and mixing drum 2 at a high position, when the continuous drying and mixing drum 2 is used to continuously dry, add materials, mix and produce asphalt finished mixture, the asphalt finished mixture can automatically fall into the finished product bin 4 for storage using the principle of gravity, and the use of the finished material scraper elevator can be eliminated, thereby completely avoiding the pain point of frequent failures of the finished material scraper elevator due to the high viscosity of the asphalt finished mixture.

[0028] Correspondingly, the discharging switching device 5 includes a discharging hopper 51, a flip switching mechanism 52 and a conveyor 53. The discharging hopper 51 and the conveyor 53 are both arranged on the lifting main building 6. The discharging hopper 51 is provided with two input ends 5111 respectively connected to the discharging ends of the two continuous drying and mixing drums 2, a first output end 5112 connected to the finished product warehouse 4 and two second output ends 5121. The conveyor 53 is provided just below the two output ends. The conveyor 53 is used to transfer the second output ends to the finished product warehouse 4. The material output from the output end 5121 is transported to the intermittent stirring device 3, and the flip switching mechanism 52 is arranged on the discharge hopper 51 and is used to connect the two input ends 5111 with the first output end 5112, to connect the two input ends 5111 with the two second output ends 5121 respectively, or to connect one of the input ends 5111 with the first output end 5112 and the other input end 5111 with the corresponding second output end 5121.

[0029] The discharge hopper 51 includes a first hopper body 511 and two second hopper bodies 512. The first hopper body 511 is in a Y shape and is arranged longitudinally. The upper end of the first hopper body 511 is provided with two input ends 5111, and the lower end of the first hopper body 511 is provided with the first output end 5112. The two second hopper bodies 512 are arranged in parallel and spaced apart, and the upper ends thereof are respectively fixedly connected to the first hopper body 511 near the two input ends 5111. The second hopper body 512 is in a straight shape and is arranged downwardly tilted. The lower end of the second hopper body 512 is provided with the second output end 5121, and the connection between the two second hopper bodies 512 and the first hopper body 511 is provided with the flip switching mechanism 52.

[0030] The flip switching mechanism 52 includes a flip plate 521 and a flip drive assembly 522. The flip plate 521 is arranged in the discharge hopper 51 and fixedly mounted on the rotating shaft 523. Both ends of the rotating shaft 523 are rotatably mounted on the connection between the second bucket body 512 and the first bucket body 511 through seat bearings 524. The flip drive assembly 522 is arranged on the outside of the discharge hopper 51 and is used to drive the rotating shaft 523 to rotate to drive the flip plate 521 to flip and switch between the first output position and the second output position. When the flip plate 521 is in the first output position, the input end 5111 is connected to the first output end 5112. When the flip plate 521 is in the second output position, the input end 5111 is connected to the second output end 5121.

[0031] The flipping drive assembly 522 includes a swing rod 5221 and a linear drive member 5222, one end of the swing rod 5221 is fixedly connected to one end of the rotating shaft 523, the other end of the swing rod 5221 is hinged to one end of the linear drive member 5222, and the other end of the linear drive member 5222 is hinged to the first bucket body 511, thereby driving the swing rod 5221 to swing through the linear drive member 5222, thereby driving the rotating shaft 523 to rotate, thereby driving the flip plate 521 to flip, preferably, the linear drive member 5222 is a hydraulic cylinder, a pneumatic cylinder or an electric push rod.

[0032] In addition, the asphalt mixture mixing equipment also includes a bucket elevator 7, which is arranged between the cold aggregate batching device 1 and the continuous drying and mixing drum 2. The cold aggregate transported by the cold aggregate batching device 1 is sent to the continuous drying and mixing drum 2 through the bucket elevator 7.

[0033] In addition, a mounting platform for mounting the continuous drying and stirring drum 2 is provided on the top of the main supporting building 6, and the continuous drying and stirring drum 2 is tilted downward toward the side of its discharge end.

[0034] The method of using the asphalt mixing plant with multiple production modes described in the utility model is as follows:

[0035] Intermittent production mode: the flip plates 521 of the two discharge switching devices 5 are switched to the second output position. At this time, the two input ends 5111 are connected to the two second output ends 5121 respectively. The cold aggregate transported by the cold aggregate batching device 1 is sent to the continuous drying and mixing drum 2 through the bucket elevator 7. The two continuous drying and mixing drums 2 both produce hot aggregate. Then, the hot aggregate enters the discharge hopper 51 through the two input ends 5111 respectively and falls onto the conveyor 53 through the two second output ends 5121 respectively. The conveyor 53 transports the hot aggregate to the intermittent mixing device 3. At the same time, the mineral powder metering and adding device adds mineral powder to the intermittent mixing device 3 according to the set proportion, and the asphalt metering and adding device adds asphalt to the intermittent mixing device 3 according to the set proportion. Then, the intermittent mixing device 3 stirs and mixes the raw materials to complete the production of the finished asphalt mixture.

[0036] Continuous production mode: The flip plates 521 of the two discharge switching devices 5 are both switched to the first output position. At this time, the two input ends 5111 are connected to the first output end 5112. The cold aggregate conveyed by the cold aggregate batching device 1 is sent to the continuous drying and mixing drum 2 through the bucket elevator 7. At the same time, the mineral powder metering and adding device adds mineral powder to the continuous drying and mixing drum 2 according to a set proportion, and the asphalt metering and adding device adds asphalt to the continuous drying and mixing drum 2 according to a set proportion. The two continuous drying and mixing drums 2 mix the raw materials to complete the production of the finished asphalt mixture. Then, the finished asphalt mixture enters the discharge hopper 51 through the two input ends 5111 and falls into the finished product bin 4 through the first output end 5112.

[0037] A production mode combining intermittent and continuous methods: the flip plate 521 of one of the discharging switching devices 5 is switched to the second output position, and the flip plate 521 of the other discharging switching device 5 is switched to the first output position. At this time, one of the input ends 5111 is connected to the first output end 5112 and the other input end 5111 is connected to the corresponding second output end 5121. The cold aggregate conveyed by the cold aggregate batching device 1 is sent to the continuous drying and stirring drum 2 through the bucket elevator 7. One of the continuous drying and stirring drums 2 produces hot aggregate. Then, the hot aggregate enters the discharging hopper 51 through the corresponding input end 5111 and falls onto the conveyor 53 through the corresponding second output end 5121. The conveyor 53 conveys the hot aggregate to the intermittent method. At the intermittent stirring device 3, at the same time, the mineral powder metering and adding device adds mineral powder to the intermittent stirring device 3 according to the set proportion, and the asphalt metering and adding device adds asphalt to the intermittent stirring device 3 according to the set proportion, and then the intermittent stirring device 3 stirs and mixes the raw materials to complete the production of the finished asphalt mixture, and the mineral powder metering and adding device adds mineral powder to the other continuous drying and stirring drum 2 according to the set proportion, and the asphalt metering and adding device adds asphalt to the other continuous drying and stirring drum 2 according to the set proportion, and the other continuous drying and stirring drum 2 stirs and mixes the raw materials to complete the production of the finished asphalt mixture, and then, the finished asphalt mixture enters the discharge hopper 51 through the corresponding input end 5111 and falls into the finished product bin 4 through the corresponding first output end 5112.

[0038] The above are only some specific implementation methods of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. An asphalt mixing plant with multiple production modes, characterized by: It includes a cold aggregate batching device, a mineral powder metering and adding device, an asphalt metering and adding device, a continuous drying and stirring drum, an intermittent stirring device and a finished product bin, the cold aggregate batching device is connected to the feed end of the continuous drying and stirring drum, the mineral powder metering and adding device and the asphalt metering and adding device are respectively connected to the continuous drying and stirring drum and the intermittent stirring device, and is characterized in that: the number of the cold aggregate batching device and the continuous drying and stirring drum are both two, one-to-one corresponding and arranged side by side, and a discharge switching device is provided between the discharge ends of the two continuous drying and stirring drums, and the discharge switching device is used to make the two continuous drying and stirring drums discharge materials to the finished product bin, to make the two continuous drying and stirring drums discharge materials to the intermittent stirring device, or to make one of the continuous drying and stirring drums discharge materials to the finished product bin and the other continuous drying and stirring drum discharge materials to the intermittent stirring device.

2. The asphalt mixing plant with multiple production modes according to claim 1, characterized in that: It also includes a lifting main building, and the two continuous drying and stirring drums are both arranged on the top of the lifting main building and lifted to a high position by the lifting main building. The finished product warehouse is arranged on the lifting main building and is located below the continuous drying and stirring drums.

3. The asphalt mixing plant with multiple production modes according to claim 2, characterized in that: The discharging switching device includes a discharging hopper, a flip switching mechanism and a conveyor. The discharging hopper and the conveyor are both arranged on the main lifting building. The discharging hopper is provided with two input ends respectively connected to the discharging ends of the two continuous drying and stirring drums, a first output end connected to the finished product warehouse and two second output ends. The conveyor is provided directly below the two output ends. The conveyor is used to transport the material output from the second output end to the intermittent stirring device. The flip switching mechanism is provided on the discharging hopper and is used to connect the two input ends with the first output end, to connect the two input ends with the two second output ends respectively, or to connect one of the input ends with the first output end and the other input end with the corresponding one of the second output ends.

4. The asphalt mixing plant with multiple production modes according to claim 3, characterized in that: The discharging hopper includes a first hopper body and two second hopper bodies. The first hopper body is Y-shaped and arranged longitudinally. The upper end of the first hopper body is provided with two input ends, and the lower end of the first hopper body is provided with the first output end. The two second hopper bodies are arranged in parallel and spaced apart, and their upper ends are respectively fixedly connected to the first hopper body near the two input ends. The second hopper body is in a straight shape and arranged downwardly. The lower end of the second hopper body is provided with the second output end. The connection between the two second hopper bodies and the first hopper body is provided with the flip switching mechanism.

5. The asphalt mixing plant with multiple production modes according to claim 4, characterized in that: The flip switching mechanism includes a flip plate and a flip drive assembly. The flip plate is arranged in the discharge hopper and fixedly mounted on the rotating shaft. Both ends of the rotating shaft are rotatably mounted at the connection between the second bucket body and the first bucket body through seat bearings. The flip drive assembly is arranged outside the discharge hopper and is used to drive the rotating shaft to rotate so as to drive the flip plate to flip and switch between the first output position and the second output position.

6. The asphalt mixing plant with multiple production modes according to claim 5, characterized in that: The flip drive assembly includes a swing rod and a linear drive member, one end of the swing rod is fixedly connected to one end of the rotating shaft, the other end of the swing rod is hinged to one end of the linear drive member, and the other end of the linear drive member is hinged to the first bucket body.

7. The asphalt mixing plant with multiple production modes according to claim 2, characterized in that: It also includes a bucket elevator, which is arranged between the cold aggregate batching device and the continuous drying and stirring drum. The cold aggregate conveyed by the cold aggregate batching device is delivered to the continuous drying and stirring drum through the bucket elevator.

8. The asphalt mixing plant with multiple production modes according to claim 2, characterized in that: A mounting platform for mounting the continuous drying and stirring drum is provided on the top of the main lifting building, and the continuous drying and stirring drum is tilted downward toward one side of the discharge end thereof.

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