Asphalt concrete separation and recovery device

Abstract

The utility model belongs to the technical field of asphalt concrete recycling, and particularly relates to an asphalt concrete separating and recycling device which comprises a cleaning barrel, a first sieve plate is mounted in the cleaning barrel, a discharge port is formed in a barrel body of the cleaning barrel, the bottom end of the discharge port is slightly lower than the sieve plate, the bottom end of the cleaning barrel is communicated with a drainage port, and a nozzle is mounted at the top of the cleaning barrel; the separation barrel is internally provided with a second sieve plate, the bottom surface of the separation barrel is of a funnel-shaped structure and is provided with an asphalt outlet, the side wall of the separation barrel is provided with an aggregate outlet, and the separation barrel is sleeved with a heating pipe; the raw material conveying pipe is communicated with the cleaning barrel and the separating barrel, the inlet end is higher than the outlet end and is communicated with the discharging opening of the cleaning barrel, a first sealing door is installed at the joint of the inlet end and the discharging opening, the outlet end is communicated with the feeding opening of the separating barrel, and a second sealing door is installed at the joint of the outlet end and the separating barrel; asphalt concrete waste is cleaned, dust, gravel and the like are washed away, then the waste is heated and separated, and asphalt and aggregate are recycled respectively.

Description

Technical Field

[0001] The utility model belongs to the technical field of asphalt concrete regeneration and recovery, and in particular relates to an asphalt concrete separation and recovery device. Background Art

[0002] Asphalt concrete is a mixture made by artificially selecting mineral materials with a certain graded composition (crushed stone or crushed gravel, stone chips or sand, mineral powder, etc.) and a certain proportion of road asphalt materials, and mixing them under strictly controlled conditions. It has good anti-seepage performance and deformation adaptability and is mainly used for road paving. After long-term use, the asphalt on the road surface will deteriorate due to various reasons such as vehicle rolling and natural weathering, and the road surface needs to be repaved. Asphalt waste is difficult to handle and causes damage to the environment. In order to reduce the impact on the environment and save natural resources, asphalt waste needs to be collected, recycled and separated. However, if there is a lot of dust in the recycled asphalt concrete, it will affect the secondary use of the asphalt concrete. Utility Model Content

[0003] In response to the problems in the existing technology, the utility model provides an asphalt concrete separation and recovery device, which can clean the collected asphalt concrete waste, flush out the dust and gravel in the waste, and then heat and separate the waste to recover asphalt and aggregate respectively.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: an asphalt concrete separation and recovery device, which is characterized by: comprising:

[0005] The cleaning barrel has a first sieve plate installed inside, a discharge port is opened on the barrel body of the cleaning barrel, the bottom of the discharge port is slightly lower than the sieve plate, the bottom of the cleaning barrel is connected to a drain port, and a nozzle is installed on the top of the cleaning barrel;

[0006] The separation barrel has a second sieve plate installed inside, a funnel-shaped bottom surface with an asphalt outlet, an aggregate outlet on the side wall of the separation barrel, and a heating pipe on the outside of the separation barrel;

[0007] The raw material conveying pipe connects the cleaning barrel and the separation barrel. The inlet end is higher than the outlet end. The inlet end is connected to the discharge port of the cleaning barrel. A first closed door is installed at the connection between the inlet end and the discharge port. The outlet end is connected to the inlet of the separation barrel, and a second closed door is installed at the connection between the outlet end and the separation barrel.

[0008] The first sieve plate and the second sieve plate are both connected to a vibration motor.

[0009] A stirring device is installed in the separation barrel, and a hot air conveying equipment is installed on the top of the separation barrel. The hot air conveying equipment includes a hot air blower installed on the top surface of the separation barrel and an air outlet pipe inserted into the separation barrel. The stirring device includes a transverse connecting rod and a scraper, and the scraper is in contact with the wall of the separation barrel.

[0010] The top of the separation barrel is also connected to an exhaust pipe, which is connected to a gas filter box, and the top of the filter box is connected to a filtered gas exhaust pipe.

[0011] The drain outlet is connected to a water circulation device, which includes a primary filter box, a water pipe and a water pump. The drain outlet is connected to the bottom end of the side wall of the primary filter box via the water pipe, the top of the primary filter box is connected to the water pump via the water pipe, and the water pump is connected to the nozzle via the water pipe; a filter plate is installed inside the primary filter box, and the filter plate is horizontally arranged and higher than the water pipe connected to the drain outlet.

[0012] A secondary filter box is further provided between the water pump and the primary filter box. Multiple layers of filter screens are provided in the secondary filter box. The aperture of the filter screens is smaller than the aperture of the filter plate.

[0013] The separation barrel is a double-layer structure, including an outer insulation layer and an inner separation layer, and the heating pipe is installed between the outer insulation layer and the inner separation layer.

[0014] The beneficial effects of the utility model are as follows: the crushed asphalt concrete waste is flushed, and the sand, gravel, etc. mixed therein are washed away, and the wastewater with sand and soil impurities flows down from the first sieve plate and is discharged through the drain outlet; the nozzle can be used to increase the water pressure, increase the flushing force, and flush the gravel in the gaps; after the flushing is completed, the first closed door is opened to send the cleaned asphalt concrete waste to the separation barrel through the raw material conveying pipe, and after closing the second closed door, the cleaned asphalt concrete waste is heated again, and the separated waste asphalt contains less impurities such as gravel and has higher quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the structure of the asphalt concrete separation and recovery device in the embodiment;

[0016] Figure 2 This is a front structural diagram of the asphalt concrete separation and recovery device in the embodiment;

[0017] Figure 3 Schematic diagram of the explosion structure of the cleaning barrel of the asphalt concrete separation and recovery device in the embodiment;

[0018] Figure 4 Schematic diagram of the explosion structure of the water circulation device of the asphalt concrete separation and recovery device in the embodiment;

[0019] Figure 5 Schematic diagram of the exploded structure of the raw material conveying pipe of the asphalt concrete separation and recovery device in the embodiment;

[0020] Figure 6 Schematic diagram of the explosion structure of the separation barrel of the asphalt concrete separation and recovery device in the embodiment;

[0021] In the figure: 1. Cleaning barrel; 101. First sieve plate; 102. Discharge port; 103. Drain port; 2. Nozzle; 3. Separation barrel; 301. Second sieve plate; 302. Asphalt outlet; 303. Aggregate outlet; 305. Exhaust pipe; 306. Gas filter box; 307. Filtered gas discharge pipe; 308. Outer insulation layer; 309. Inner separation layer; 4. Heating pipe; 5. Raw material conveying pipe; 501. Inlet end; 502. Outlet end; 503. First closed door; 504. Second closed door; 6. Vibration motor; 7. Stirring device; 701. Connecting rod; 702. Scraper; 8. Hot air conveying equipment; 801. Hot air blower; 802. Air outlet pipe; 9. Water circulation device; 901. Primary filter box; 902. Water pipe; 903. Water pump; 904. Secondary filter box; 905. Filter plate; 906. Filter screen. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0023] Specific implementation examples Figure 1 、 2 , 3, 5 and 6, the asphalt concrete separation and recovery device is characterized by: comprising

[0024] The cleaning barrel 1 has a first sieve plate 101 installed inside, a discharge port 102 is provided on the barrel body of the cleaning barrel 1, the bottom of the discharge port 102 is slightly lower than the sieve plate, the bottom of the cleaning barrel 1 is connected to a drain port 103, and a nozzle 2 is installed on the top of the cleaning barrel 1;

[0025] The separation barrel 3 has a second sieve plate 301 installed inside. The bottom of the separation barrel 3 is a funnel-shaped structure with an asphalt outlet 302. The side wall of the separation barrel 3 has an aggregate outlet 303. The outer surface of the separation barrel 3 is equipped with a heating pipe 4.

[0026] The raw material conveying pipe 5 connects the cleaning barrel 1 and the separation barrel 3, the inlet end 501 is higher than the outlet end 502, the inlet end 501 is connected to the discharge port 102 of the cleaning barrel 1, and a first closed door 503 is installed at the connection between the inlet end 501 and the discharge port 102, the outlet end 502 is connected to the feed port of the separation barrel 3, and a second closed door 504 is installed at the connection between the outlet end 502 and the separation barrel 3.

[0027] Close the first sealing door 503, add the crushed asphalt concrete waste to the first sieve plate 101 in the cleaning barrel 1, then close the lid or the feed port, use the nozzle 2 to flush the asphalt concrete waste, wash away the gravel, sand, etc., and the wastewater with gravel, etc. passes through the mesh of the first sieve plate 101 and falls to the drain outlet 103 for discharge. After the flushing is completed, open the first closed door 503 and the second closed door 504. The raw material conveying pipe 5 is an inclined structure, and the asphalt concrete waste falls along the raw material conveying pipe 5 to the second sieve plate 301 of the separation barrel 3. Close the second closed door 504, heat the separation barrel 3, and melt the asphalt through the second sieve plate 301 and fall out of the asphalt outlet 302 for collection. After the collection is completed, take out the remaining aggregate from the aggregate outlet for collection.

[0028] like Figure 3 and 6 As shown, the first sieve plate 101 and the second sieve plate 301 are both connected to the vibration motor 6. The vibration motor 6 vibrates the first sieve plate 101, so that the asphalt concrete waste on the first sieve plate 101 can be washed more thoroughly and water can be reduced from adhering to the waste. The vibration motor 6 vibrates the second sieve plate 301, so that the waste is heated more evenly, avoiding the phenomenon that the asphalt is not easily melted due to insufficient internal heating.

[0029] like Figure 6 As shown, a stirring device 7 is installed in the separation barrel 3, and a hot air conveying equipment 8 is installed on the top of the separation barrel 3. The hot air conveying equipment 8 includes a hot air blower 801 installed on the top surface of the separation barrel 3 and an air outlet pipe 802 inserted into the separation barrel 3. The stirring device 7 includes a transverse connecting rod 701 and a scraper 702, and the scraper 702 is in contact with the wall of the separation barrel 3.

[0030] The hot air conveying equipment 8 blows hot air to the inner wall of the separation barrel 3 and the surface of the stirring device 7 to prevent the asphalt from adhering and being difficult to handle. At the same time, it also heats the waste, accelerates the melting of the asphalt, and improves the separation efficiency.

[0031] like Figure 1 、 2As shown in Figure 6, the top of the separation barrel 3 is also connected to an exhaust pipe 305, which is connected to a gas filter box 306. The top of the gas filter box 306 is connected to a filtered gas exhaust pipe 307. The gas filter box 306 filters the exhaust gas generated during the separation process of the separation barrel 3 to reduce pollution to the environment.

[0032] like Figure 1 、 2 As shown in Figures 3 and 4, the drain outlet 103 is connected to the water circulation device 9, which includes a primary filter box 901, a water pipe 902 and a water pump 903. The drain outlet 103 is connected to the bottom end of the side wall of the primary filter box 901 by means of the water pipe 902, and the top of the primary filter box 901 is connected to the water pump 903 by means of the water pipe 902. The water pump 903 is connected to the nozzle 2 by means of the water pipe 902; a filter plate 905 is installed inside the primary filter box 901, and the filter plate 905 is horizontally arranged and higher than the water pipe 902 connected to the drain outlet 103.

[0033] like Figure 1 、 2 As shown in FIG4 , the water circulation device 9 can filter and recycle the flushing water to reduce water waste. The filter plate 905 can block sand and gravel at the bottom of the primary filter box 901 to prevent the sand and gravel from entering the water circulation.

[0034] like Figure 4 As shown, a secondary filter box 904 is further provided between the water pump 903 and the primary filter box 901 , and multiple layers of filter screens 906 are provided in the secondary filter box 904 . The aperture of the filter screens 906 is smaller than that of the filter plate 905 .

[0035] The secondary filter box 901 uses a filter screen 906 to further filter the circulating water, filter out sand and soil, etc., reduce the sand content entering the water cycle, and ensure the cleaning effect in the cleaning barrel 1.

[0036] like Figure 6 As shown, the separation barrel 3 is a double-layer structure, including an outer insulation layer 308 and an inner separation layer 309 , and the heating pipe 4 is installed between the outer insulation layer 308 and the inner separation layer 309 .

[0037] Working principle: Add waste materials into the cleaning barrel 1, and use the nozzle 2 to clean the waste materials, so that the gravel and sand on the asphalt concrete waste materials are removed, so as to avoid the gravel and other materials flowing out with the asphalt during separation, affecting the quality of the asphalt. The gravel and other materials washed down fall to the bottom of the cleaning barrel 1 and are discharged through the drain port 103. The cleaned asphalt concrete waste materials are transported to the separation barrel 3 through the raw material conveying pipe 5, which reduces the transportation process. When the separation barrel 3 is performing separation work, the cleaning barrel 1 can clean the next batch of waste materials, saving time and improving work efficiency. The cleaned asphalt concrete waste enters the separation barrel 3 and falls onto the second sieve plate 301 , close the second closed door 504 to prevent the waste from re-entering the raw material conveying pipe 5, close the aggregate outlet 303 to ensure the sealing of the separation barrel 3, start the heating tube 4 to heat the separation barrel 3, and the waste on the second sieve plate 301 is heated. The asphalt therein melts and passes through the mesh of the second sieve plate 301 to fall onto the funnel-shaped bottom surface of the separation barrel 3 and flows out through the asphalt outlet 302 for collection; the cleaning barrel 1 and the separation barrel 3 are set separately, and can perform cleaning and separation work at the same time, thereby improving work efficiency, and the cleaned waste directly enters the separation barrel 3, reducing manual handling and avoiding re-contamination with dust during the process. The content of sand and gravel in the cleaned waste is low, thereby improving the quality of the recovered asphalt.

[0038] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.

Claims

1. Asphalt concrete separation and recovery device, characterized by: include A cleaning barrel (1) is provided with a first sieve plate (101) installed therein, a discharge port (102) is provided on the barrel body of the cleaning barrel (1), the bottom end of the discharge port (102) is slightly lower than the sieve plate, a drain port (103) is connected to the bottom end of the cleaning barrel (1), and a nozzle (2) is installed on the top of the cleaning barrel (1); A separation barrel (3) is provided with a second sieve plate (301) inside, the bottom surface of the separation barrel (3) is a funnel-shaped structure and is provided with an asphalt outlet (302), the side wall of the separation barrel (3) is provided with an aggregate outlet (303), and the outer surface of the separation barrel (3) is provided with a heating pipe (4); The raw material conveying pipe (5) is connected to the cleaning barrel (1) and the separation barrel (3), the inlet end (501) is higher than the outlet end (502), the inlet end (501) is connected to the discharge port (102) of the cleaning barrel (1), a first closed door (503) is installed at the connection between the inlet end (501) and the discharge port (102), the outlet end (502) is connected to the feed port of the separation barrel (3), and a second closed door (504) is installed at the connection between the outlet end (502) and the separation barrel (3).

2. The asphalt concrete separation and recovery device according to claim 1, characterized in that: The first sieve plate (101) and the second sieve plate (301) are both connected to a vibration motor (6).

3. The asphalt concrete separation and recovery device according to claim 2, characterized in that: A stirring device (7) is installed in the separation barrel (3), and a hot air conveying device (8) is installed on the top of the separation barrel (3). The hot air conveying device (8) includes a hot air blower (801) installed on the top surface of the separation barrel (3) and an air outlet pipe (802) inserted into the interior of the separation barrel (3). The stirring device (7) includes a transverse connecting rod (701) and a scraper (702), and the scraper (702) contacts and cooperates with the wall of the separation barrel (3).

4. The asphalt concrete separation and recovery device according to claim 3, characterized in that: The top of the separation barrel (3) is also connected to an exhaust pipe (305), the exhaust pipe (305) is connected to a gas filter box (306), and the top of the gas filter box (306) is connected to a filtered gas exhaust pipe (307).

5. The asphalt concrete separation and recovery device according to claim 1, characterized in that: The drain outlet (103) is connected to a water circulation device (9), and the water circulation device (9) includes a primary filter box (901), a water pipe (902) and a water pump (903). The drain outlet (103) is connected to the bottom end of the side wall of the primary filter box (901) via the water pipe (902). The top of the primary filter box (901) is connected to the water pump (903) via the water pipe (902). The water pump (903) is connected to the nozzle (2) via the water pipe (902). A filter plate (905) is installed inside the primary filter box (901). The filter plate (905) is horizontally arranged and higher than the water pipe (902) connected to the drain outlet (103).

6. The asphalt concrete separation and recovery device according to claim 5, characterized in that: A secondary filter box (904) is further provided between the water pump (903) and the primary filter box (901), and a multi-layer filter screen (906) is provided in the secondary filter box (904). The aperture of the filter screen (906) is smaller than the aperture of the filter plate (905).

7. The asphalt concrete separation and recovery device according to claim 1, characterized in that: The separation barrel (3) has a double-layer structure, comprising an outer heat-insulating layer (308) and an inner separation layer (309), and the heating pipe (4) is installed between the outer heat-insulating layer (308) and the inner separation layer (309).

Images