Efficient impurity separation equipment for waste asphalt regeneration
By installing a mixing tank, a solvent tank, and a wet condenser in the waste asphalt recycling equipment, efficient separation and recycling of waste asphalt are achieved, solving the problems of high energy consumption and low solvent utilization efficiency in existing technologies, and achieving the effect of energy saving and emission reduction.
Patent Information
- Application Number
- CN202520511619.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-17
- Estimated Expiration
- 2035-03-21
AI Technical Summary
Existing gradient centrifuge equipment is difficult to efficiently separate solid waste and dissolved asphalt in the recycling and reuse of waste asphalt, and has low solvent utilization efficiency, resulting in high energy consumption and non-compliance with emission standards.
A system comprising a mixing tank, a solvent tank, a dryer, and a wet condenser was designed. The mixing tank is used for initial dissolution and precipitation, a centrifuge is used for gradient centrifugation separation, and a wet condenser is installed in the solvent tank to recover the solvent, thereby realizing the recycling of the solvent.
It achieves efficient separation and recycling of waste asphalt, reduces energy consumption, reduces emissions, and improves solvent utilization efficiency.
Smart Images
Figure CN223995618U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of waste asphalt recycling and processing equipment, specifically to a high-efficiency impurity separation device for waste asphalt recycling. Background Technology
[0002] Recycling and reusing waste asphalt is a measure that benefits environmental protection policies. It can also slow down the consumption of non-renewable energy and is a beneficial means of harmlessly treating engineering waste. For the recycling and reuse of waste asphalt, a gradient centrifugation scheme can be used to separate asphalt from unusable waste. Typically, solvents are used to dissolve the crushed raw materials, and then centrifugation is used to separate them according to their different densities. The largest amount of solid waste is separated. To meet the energy-saving and emission-reduction requirements of the equipment, optimizing the working process and equipment structure of the gradient centrifugation equipment has become a research topic with value. Utility Model Content
[0003] The purpose of this utility model is to address the defects and deficiencies of the existing technology by providing a high-efficiency impurity separation device for waste asphalt recycling. It is equipped with a pre-mixing and dissolving device and a corresponding preliminary sedimentation treatment structure to achieve primary treatment of solid waste in the solution. At the same time, it is also equipped with a solvent recovery and reuse component in the solid waste, so as to achieve high efficiency, low consumption, energy saving and emission reduction in production.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] It includes a centrifuge and a mixing chamber, with the mixing chamber located to the side of the centrifuge. The outlet of the mixing chamber is connected to the inlet of the centrifuge via a pipe. It also includes:
[0006] The solvent tank is fixedly installed on the top plate of the mixing tank, and the outlet end of the solvent tank is connected to the liquid inlet end of the mixing tank through a pipe.
[0007] The dryer is located behind the mixing chamber, and the solid material outlet of the centrifuge is connected to one of the inlet ends of the dryer via a pipe.
[0008] A wet condenser is installed inside a solvent tank, with both its inlet and outlet ends passing through the rear panel of the solvent tank. The outlet end of the dryer is connected to the inlet end of the wet condenser via a pipe.
[0009] The liquid inlet pipe is inserted and fixed on the rear side plate of the solvent tank, and the outlet end of the wet condenser is connected to the liquid inlet pipe through a pipe.
[0010] Preferably, the mixing chamber is provided with a partition, and the lower end of the partition is mounted above the bottom plate of the mixing chamber. The front and rear sides and the upper side of the partition are respectively fixedly mounted on the front and rear inner walls and the upper inner wall of the mixing chamber. The partition is located between the inlet end and the outlet end of the mixing chamber. A support plate is fixedly mounted on the inner wall of the mixing chamber, and the support plate is located below the inlet end of the mixing chamber.
[0011] Preferably, the mixing tank is equipped with a stirring roller, and the front end shaft of the stirring roller is spun through the front side plate of the mixing tank via a bearing. A support frame is embedded and fixed in the liquid inlet end of the mixing tank, and the rear end shaft of the stirring roller is spun on the support frame via a bearing. The stirring roller is positioned above the tray.
[0012] Preferably, several material carrier plates are fixedly installed on the inner wall of the mixing chamber, and the material carrier plates are arranged at equal intervals. Several flow guide plates are fixedly installed on the wall of the partition facing the support plate, and the flow guide plates and material carrier plates are arranged alternately. A flow stabilizer plate is installed inside the mixing chamber between the partition and the outlet end of the mixing chamber, and the flow stabilizer plate is fixedly installed on the inner wall of the mixing chamber, with the lower end of the flow stabilizer plate higher than the lower end of the partition.
[0013] Preferably, the end of the material carrier plate away from the partition is inclined downward, and a guide groove is fixedly inserted on one side of the lower end of the material carrier plate. An opening and closing plate is provided in the guide groove. The rear end shaft of the opening and closing plate is spun onto the rear inner wall of the mixing box through a bearing, and the front end shaft of the opening and closing plate is spun onto the front side plate of the mixing box through a bearing.
[0014] Preferably, the lower part of the mixing box is integrally formed with a collection trough, and a pusher roller unit is fixedly installed on the port of the collection trough. The roller end of the pusher roller unit is inserted into the inside of the collection trough, and the roller end of the pusher roller unit is mounted on both sides below the partition.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This solution uses a centrifuge to process the dissolved raw materials in a gradient centrifugation process, which separates the solid waste, high-density liquid and low-density liquid in the raw materials, thereby enabling the recycling of waste asphalt after subsequent processing.
[0017] This solution uses a mixing tank to mix and dissolve the raw materials before centrifugation. The mixing tank is equipped with a material carrier plate and a guide plate to perform preliminary sedimentation of the solution, thereby reducing the pressure of centrifugation.
[0018] This solution adds a solvent tank above the mixing tank, and then installs a wet condenser inside the solvent tank. A dryer is installed to dry the solid waste obtained after separation, thereby condensing and recycling the separated solvent for reuse. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model.
[0020] Figure 2 yes Figure 1 Rear side view.
[0021] Figure 3 This is a schematic diagram of the structure of the mixing box, the material carrier plate, the flow guide plate, and the flow stabilizer plate in this utility model.
[0022] Figure 4 This is a structural schematic diagram of the mixing box, pallet, and partition in this utility model.
[0023] Figure 5 This is a schematic diagram of the structure of the material carrier plate, the material guide groove, and the opening and closing plate in this utility model.
[0024] Explanation of reference numerals in the attached figures:
[0025] Centrifuge 1, Mixing tank 2, Solvent tank 3, Dryer 4, Wet condenser 5, Liquid inlet pipe 6, Baffle 7, Support plate 8, Stirring roller 9, Support frame 10, Carrying plate 11, Guide plate 12, Flow stabilizer 13, Material guide trough 14, Opening and closing plate 15, Collection trough 16, Pushing roller unit 17. Detailed Implementation
[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0027] like Figure 1-5 As shown, the specific implementation adopts the following technical solution:
[0028] This specific embodiment includes a centrifuge 1 and a mixing chamber 2. The centrifuge 1 has a gradient centrifugation structure, which can be adjusted by adjusting the working mode from bottom to high speed when performing gradient centrifugation on asphalt material to separate solid material, heavy oil resin, and light oil solvent. The mixing chamber 2 is located on the side of the centrifuge 1, and the outlet end of the mixing chamber 2 is connected to the inlet end of the centrifuge 1 through a pipe. A solvent tank 3 is fixedly installed on the top plate of the mixing chamber 2, and the outlet end of the solvent tank 3 is connected to the liquid material inlet end of the mixing chamber 2 through a pipe. A liquid inlet pipe 6 is fixedly installed through the upper end of the rear side plate of the solvent tank 3. A dryer 4 is installed at the rear of the mixing chamber 2, and the solid material outlet end of the centrifuge 1 is connected to the inlet end of the dryer 4 through a pipe. A wet condenser 5 is installed in the solvent tank 3, and the inlet end of the wet condenser 5 is connected to the air outlet end of the dryer 4 through a pipe. The outlet end of the wet condenser 5 is connected to the liquid inlet pipe 6 through a pipe.
[0029] The lower part of the mixing chamber 2 is integrally formed with a collection trough 16. A pusher roller unit 17 is inserted and fixed at the outlet end of the collection trough 16, and the roller end of the pusher roller unit 17 is inserted into the collection trough 16. The outlet end of the pusher roller unit 17 is connected to the inlet end of the dryer 4 through a pipe. A partition 7 is fixedly installed on the inner wall of the mixing chamber 2, and the partition 7 is mounted above the collection trough 16 and is located between the inlet end and the outlet end of the mixing chamber 2. A support plate 8 is fixedly installed on the inner wall of the mixing chamber 2, and the support plate 8 is located below the inlet end of the mixing chamber 2. An agitator roller 9 is installed inside the mixing chamber 2 above the support plate 8. A support frame 10 is embedded and fixed in the liquid inlet end of the mixing chamber 2. The rear end shaft of the agitator roller 9 is screwed onto the support frame 10 through a bearing. The front end shaft of the agitator roller 9 is screwed onto the front side plate of the mixing chamber 2 through a bearing. Several material carrier plates 11 are arranged vertically and equidistantly below the 8, and the end of the material carrier plate 11 away from the partition 7 is fixedly mounted on the inner wall of the mixing tank 2. Several flow guide plates 12 are arranged vertically and equidistantly on the side wall of the partition 7 facing the material carrier plate 11, and the flow guide plates 12 and the material carrier plates 11 are arranged alternately. The end of the material carrier plate 11 away from the partition 7 is inclined downward. A material guide groove 14 is fixedly inserted through the lower edge of the material carrier plate 11. An opening and closing plate 15 is provided in the material guide groove 14, and the rear end of the opening and closing plate 15 is screwed onto the rear inner wall of the mixing tank 2 through a rotating shaft. The front end of the opening and closing plate 15 is screwed onto the front side plate of the mixing tank 2 through a rotating shaft. A flow stabilizer plate 13 is fixedly installed on the inner wall of the mixing tank 2, and the flow stabilizer plate 13 is located on the side opposite to the partition 7 and the flow guide plate 12. The lower end of the flow stabilizer plate 13 is higher than the lower end of the partition 7.
[0030] When using this device, the processed solid material is fed into the mixing tank 2 through the solid material inlet end of the mixing tank 2. The solvent is fed into the solvent tank 3 through the liquid inlet pipe 6, and the solvent in the solvent tank 3 is fed into the mixing tank 2 through the liquid material inlet end of the mixing tank 2. By rotating the stirring roller 9, the solid material and solvent fed into the mixing tank 2 are stirred and mixed, so that the solid material is fully dissolved in the solvent, and the solid waste in the solid material is mixed in the solution. The solution in the mixing tank 2 is mixed above the tray 8, and then the solution flows in an "S" shaped trajectory between the stacked material carrier plates 11 and the guide plate 12. During this process, some of the solid waste in the solution settles on the material carrier plate 11, and the solid waste on the material carrier plate 11 slides down the inclined surface of the material carrier plate 11 into the collection tank 16. The solution that has undergone preliminary sedimentation by the material carrier plate 11 enters the mixing tank 2 from below the partition plate 7 on the other side of the partition plate 7. The solution flows through the flow stabilizing plate. After the flow rate stabilizes, the solution is fed into centrifuge 1 through the outlet section of mixing tank 2. The solution is then subjected to gradient centrifugation by centrifuge 1. The solid waste filtered out by low-speed centrifugation is sent into dryer 4 through the solid material outlet section of centrifuge 1. The opening and closing plate 15 in the guide trough 14 rotates slowly, so that when the opening and closing plate 15 is opened, the solid waste in the guide trough 14 falls down step by step, and the solid waste in mixing tank 2 falls into collection tank 16. The solid waste in collection tank 16 is collected by pusher roller unit 17 and sent into dryer 4. Dryer 4 dries the solid waste, causing the solvent contained in the solid waste to evaporate. The evaporated solvent is sent into wet condenser 5 for cooling and liquefaction. Wet condenser 5 sends the liquefied solvent into inlet pipe 6 and then circulates it into solvent tank 3. Inlet pipe 6 replenishes low-temperature solvent into solvent tank 3, so that the low-temperature liquid in solvent tank 3 provides a low-temperature environment for wet condenser 5.
[0031] Compared with the prior art, the beneficial effects of this utility model are:
[0032] 1. This device uses centrifuge 1 to separate recycled asphalt, and realizes gradient centrifugation of the processed asphalt dissolved in solvent, which is then processed into solid waste sand and gravel, heavy oil asphalt, and light oil solvent, thereby preparing asphalt products that meet functional requirements.
[0033] 2. This device is designed for the gradient centrifugation treatment of waste asphalt materials. It is equipped with a corresponding powder and solid mixing and dissolving device. The material is fully dissolved by the solubility and the stirring roller 9 inside, which facilitates the subsequent centrifugation treatment. In addition, a collection tank 16 and a pusher roller unit 17 are set in the mixing tank 2 to achieve the initial sedimentation of the mixed solution and the collection and treatment of solid waste.
[0034] 3. This device is equipped with a dryer 4 for the solid waste generated during separation, so as to realize the recovery and treatment of the solvent contained in the solid waste. A solvent tank 3 is added to the mixing tank 2, and a wet condenser 5 is installed in the solvent tank 3 to liquefy the gaseous solvent and then recycle it.
[0035] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A high-efficiency impurity separation device for waste asphalt regeneration, comprising a centrifugal machine (1) and a mixing box (2), wherein the mixing box (2) is arranged at the side of the centrifugal machine (1), and the outlet end of the mixing box (2) is connected with the inlet end of the centrifugal machine (1) through a pipeline; characterized in that, It also contains: The solvent tank (3) is fixedly arranged on the top plate of the mixing tank (2), and the outlet end of the solvent tank (3) is connected with the liquid inlet end of the mixing tank (2) through a pipeline. The dryer (4) is arranged behind the mixing tank (2), and the solid outlet end of the centrifuge (1) is connected with an inlet end of the dryer (4) through a pipeline. The wet condenser (5) is arranged in the solvent tank (3), and the inlet end and the outlet end of the wet condenser (5) are both arranged on the rear side plate of the solvent tank (3), and the outlet end of the dryer (4) is connected with the inlet end of the wet condenser (5) through a pipeline. The liquid inlet pipe (6) is fixedly arranged on the rear side plate of the solvent tank (3), and the outlet end of the wet condenser (5) is connected with the liquid inlet pipe (6) through a pipeline.
2. The high-efficiency impurity separation equipment for waste asphalt regeneration according to claim 1, characterized in that: The mixing tank (2) is provided with a partition plate (7), and the lower end of the partition plate (7) is arranged above the bottom plate of the mixing tank (2), the front and rear sides and the upper side of the partition plate (7) are fixedly arranged on the front and rear inner walls and the upper inner wall of the mixing tank (2), the partition plate (7) is arranged between the inlet end and the outlet end of the mixing tank (2), and the inner wall of the mixing tank (2) is fixedly provided with a supporting plate (8), and the supporting plate (8) is arranged below the inlet end of the mixing tank (2).
3. The high-efficiency impurity separation equipment for waste asphalt regeneration according to claim 2, characterized in that: The mixing tank (2) is provided with a stirring roller (9), and the front end shaft of the stirring roller (9) is rotatably arranged on the front side plate of the mixing tank (2) through a bearing, the liquid inlet end of the mixing tank (2) is embeddedly fixed with a supporting frame (10), the rear end shaft of the stirring roller (9) is rotatably arranged on the supporting frame (10) through a bearing, and the stirring roller (9) is arranged above the supporting plate (8).
4. The high-efficiency impurity separation equipment for waste asphalt regeneration according to claim 2, characterized in that: The inner side wall of the mixing tank (2) is fixedly provided with a plurality of material carrying plates (11), and the material carrying plates (11) are arranged in an equidistant manner from top to bottom, a plurality of guide plates (12) are fixedly arranged on the wall of the partition plate (7) facing the supporting plate (8), and the guide plates (12) and the material carrying plates (11) are arranged alternately, a flow stabilizing plate (13) is arranged between the partition plate (7) and the outlet end of the mixing tank (2), and the flow stabilizing plate (13) is fixedly arranged on the inner side wall of the mixing tank (2), and the lower end of the flow stabilizing plate (13) is higher than the lower end of the partition plate (7).
5. The high-efficiency impurity separation equipment for waste asphalt regeneration according to claim 4, characterized in that: The end of the material carrying plate (11) away from the partition plate (7) is arranged downwardly inclined, a material guide groove (14) is fixedly arranged on one side of the lower end of the material carrying plate (11), and an opening and closing plate (15) is arranged in the material guide groove (14), the rear end shaft of the opening and closing plate (15) is rotatably arranged on the rear inner wall of the mixing tank (2) through a bearing, and the front end shaft of the opening and closing plate (15) is rotatably connected and arranged on the front side plate of the mixing tank (2) through a bearing.
6. The high-efficiency impurity separation equipment for waste asphalt regeneration according to claim 4, characterized in that: The lower part of the mixing tank (2) is integrally provided with a collecting groove (16), a material pushing roller unit (17) is fixedly arranged on the port of the collecting groove (16), and the roller end of the material pushing roller unit (17) is inserted into the inside of the collecting groove (16), and the roller end of the material pushing roller unit (17) is arranged below the partition plate (7).