An asphalt production plant

Abstract

This invention provides an asphalt preparation device. The asphalt preparation device includes: a tank having a jacket; a resistance heating plate disposed within the jacket; a stirring motor fixedly installed at the bottom of the tank; a threaded rod rotatably mounted on the inner wall of the bottom of the tank, the bottom end of the threaded rod being fixedly connected to the output shaft of the stirring motor; a threaded sleeve threadedly fitted onto the threaded rod and located within the tank; a stirring frame fixedly installed on the threaded sleeve and located within the tank; and a scraping mechanism disposed on the threaded sleeve and located within the tank. The asphalt preparation device provided by this invention has the advantage of over current asphalt preparation equipment, which suffers from difficulty in removing asphalt and significant residue after processing.

Description

Technical Field

[0001] This invention relates to the field of asphalt preparation technology, and more particularly to an asphalt preparation apparatus. Background Technology

[0002] Asphalt is an organic cementitious material that provides waterproofing, moisture resistance, and corrosion protection. Asphalt can be mainly divided into three types: coal tar pitch, petroleum asphalt, and natural asphalt. Coal tar pitch is a byproduct of coking. Petroleum asphalt is the residue after crude oil distillation. Natural asphalt is stored underground, sometimes forming mineral layers or accumulating on the earth's surface. Asphalt is mainly used in industries such as coatings, plastics, and rubber, as well as for road paving.

[0003] Petroleum asphalt coking value (PAHs) refers to a class of volatile organic compounds produced in petroleum asphalt due to high-temperature heat treatment. The determination of coking value is an important indicator for evaluating the quality of asphalt.

[0004] There are several commonly used methods for determining the coking value of petroleum asphalt, among which thermally desorbed mass spectrometry (TD-MS) is the most common. This method involves heating the asphalt to a certain temperature to volatilize the coking compounds, and then using mass spectrometry to measure the types and contents of the volatilized compounds.

[0005] The formula for calculating the coking value is usually to divide the total amount of coking material in the asphalt sample (in mass) by the total mass of the asphalt sample (in mass) to obtain the coking rate. Common units for calculating the coking value include percentage (%), milligrams per gram (mg / g), and micrograms per gram (μg / g).

[0006] The method of increasing the coking value of asphalt by oil injection is as follows:

[0007] 1. Anthracene oil and pitch are used together as heat carriers in the heating furnace, and the diameter of the furnace tubes is controlled to ensure uniform heating.

[0008] 2. A reduced-pressure process is used to control the temperature below 330℃. Another method is to control the content of toluene-insoluble matter and quinoline-insoluble matter, but this method is still under further research.

[0009] In related technologies, a patent document with authorization announcement number CN101812235B discloses a method for improving the rheological properties of coal tar pitch and increasing its coking value, as well as a modifier thereof. This method, based on existing aluminum carbon anode preparation processes, adds a multi-component modifier to the molten pitch to improve its rheological properties at the kneading temperature (160–180°C) while ensuring the high-temperature coking value of the pitch. The modifier consists of oleic acid or dibutyl phthalate and ultrafine graphite powder or carbon powder with a particle size not exceeding 40 μm. The introduction of this multi-component modifier enhances the anode's resistance to air and CO2 reactivity, and appropriately reduces the amount of pitch added during the kneading process, thereby improving anode quality and reducing pitch fume emissions.

[0010] In related technologies, current asphalt preparation equipment is difficult to meet the above requirements, especially since asphalt is highly viscous, making it difficult to remove after mixing and leaving a lot of residue.

[0011] Therefore, it is necessary to provide a new asphalt preparation apparatus to solve the above-mentioned technical problems. Summary of the Invention

[0012] To address the technical problem of difficulty in removing asphalt and excessive residue after processing in current asphalt preparation equipment, this invention provides an asphalt preparation device.

[0013] The asphalt preparation apparatus provided by the present invention includes: a tank having a jacket; a resistance heating plate disposed within the jacket; a stirring motor fixedly installed at the bottom of the tank; a threaded rod rotatably installed on the inner wall of the bottom of the tank, the bottom end of the threaded rod being fixedly connected to the output shaft of the stirring motor; a threaded sleeve threadedly fitted onto the threaded rod and located within the tank; a stirring frame fixedly installed on the threaded sleeve and located within the tank; and a scraping mechanism disposed on the threaded sleeve and located within the tank.

[0014] Preferably, the scraping mechanism includes a scraping pusher plate and a guide rod frame. The scraping pusher plate is rotatably sleeved on the threaded sleeve and located below the stirring frame. The guide rod frame is fixedly installed in the tank body and slides through the scraping pusher plate.

[0015] Preferably, the scraper pusher is provided with sealing bearing rings on both the upper and lower sides, and the sealing bearing rings are fixedly connected to the threaded sleeve.

[0016] Preferably, the top end of the threaded rod and the threaded sleeve is provided with a connecting piece, the connecting piece is detachably connected to the threaded sleeve, the top end of the threaded rod is provided with a keyway, a spline rod is engaged in the keyway, and the spline rod is fixedly connected to the connecting piece.

[0017] Preferably, the top of the tank is detachably fitted with a top cover, a mixing cylinder is fixedly installed on the top cover, a feed hopper is fixedly installed on one side of the mixing cylinder, a nozzle is provided on the top of the feed hopper, and a liquid supply mechanism corresponding to the nozzle is provided on the tank.

[0018] Preferably, the liquid supply mechanism includes a liquid storage tank and a liquid pump, both of which are fixedly installed on the tank body. The inlet pipe of the liquid pump extends into the liquid storage tank, and the outlet hose of the liquid pump is connected to the nozzle using a quick connector.

[0019] Preferably, an exhaust pipe is fixedly connected to one side of the tank, a purification cylinder is fixedly installed at the exhaust end of the exhaust pipe, a partition net is fixedly installed inside the purification cylinder, a sealing net is detachably installed at the opening of the purification cylinder, and the purification cylinder is filled with purification particles.

[0020] Preferably, the mixing cylinder has an open bottom and a closed top, the inlet of the feed hopper is hinged with a cap, and the nozzle is positioned above the outlet of the feed hopper.

[0021] Preferably, the tank is equipped with a controller, which is connected to a resistance heating plate, a stirring motor and a liquid pump.

[0022] Preferably, the guide rod frame is L-shaped, and the outer edge of the scraper pusher plate is in sealed contact with the inner wall of the tank.

[0023] Compared with related technologies, the asphalt preparation apparatus provided by the present invention has the following beneficial effects:

[0024] This invention provides an asphalt preparation apparatus:

[0025] 1. The material can be heated by the resistance heating plate. The threaded rod and threaded sleeve can serve as both the stirring components that drive the stirring frame to rotate and the scraping mechanism to move upward, thereby pushing the asphalt upward and reducing the residue in the tank. The scraping mechanism pushes the asphalt upward for easy collection. The guide rod frame can guide the scraping pusher to move upward when driving it. The sealing bearing ring can seal the connection between the threaded sleeve and the scraping pusher, while improving the load-bearing capacity. The connecting piece, keyway and spline rod serve as the connecting parts between the threaded rod and the threaded sleeve, so that they can be driven synchronously during stirring.

[0026] 2. The powder and liquid materials are mixed through the mixing cylinder and feed hopper on the top cover, so that the modifier can be added evenly to the material. The liquid material in the storage tank can be drawn out by the liquid pump and then sprayed out by the nozzle to ensure the mixing effect. The exhaust gas can be introduced into the purification cylinder through the exhaust pipe and purified by the purification particles, which is more environmentally friendly. Attached Figure Description

[0027] Figure 1 A front view schematic diagram of a preferred embodiment of the asphalt preparation apparatus provided by the present invention;

[0028] Figure 2 A schematic front cross-sectional view of a preferred embodiment of the asphalt preparation apparatus provided by the present invention;

[0029] Figure 3 for Figure 2 An enlarged structural diagram of part A shown in the figure;

[0030] Figure 4 for Figure 2 An enlarged structural diagram of part B shown in the figure;

[0031] Figure 5 for Figure 2 An enlarged structural diagram of section C shown in the figure;

[0032] Figure 6 for Figure 2 An enlarged structural diagram of part D shown in the figure;

[0033] Figure 7 This is a schematic diagram of the front cross-sectional structure of the purification cylinder in this invention;

[0034] Figure 8 This is a schematic diagram of the structure of the threaded sleeve, scraper pusher plate and sealing bearing ring in this invention.

[0035] Labels in the diagram: 1. Tank body; 2. Resistance heating plate; 3. Agitator motor; 4. Threaded rod; 5. Threaded sleeve; 6. Agitator frame; 7. Scraper pusher plate; 8. Guide rod frame; 9. Sealing bearing ring; 10. Connecting piece; 11. Keyway; 12. Spline rod; 13. Top cover; 14. Mixing cylinder; 15. Feed hopper; 16. Nozzle; 17. Storage tank; 18. Liquid pump; 19. Inlet pipe; 20. Outlet hose; 21. Quick connector; 22. Exhaust gas discharge pipe; 23. Purification cylinder; 24. Partition mesh; 25. Sealing mesh; 26. Purified particles. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0037] Please refer to the following: Figures 1-8 ,in, Figure 1 A front view schematic diagram of a preferred embodiment of the asphalt preparation apparatus provided by the present invention; Figure 2 A schematic front cross-sectional view of a preferred embodiment of the asphalt preparation apparatus provided by the present invention; Figure 3 for Figure 2An enlarged structural diagram of part A shown in the figure; Figure 4 for Figure 2 An enlarged structural diagram of part B shown in the figure; Figure 5 for Figure 2 An enlarged structural diagram of section C shown in the figure; Figure 6 for Figure 2 An enlarged structural diagram of part D shown in the figure; Figure 7 This is a schematic diagram of the front cross-sectional structure of the purification cylinder in this invention; Figure 8 This is a schematic diagram of the structure of the threaded sleeve, scraper pusher plate and sealing bearing ring in this invention.

[0038] The asphalt preparation device includes: a tank 1 with a jacket; a resistance heating plate 2 disposed within the jacket; a stirring motor 3 fixedly installed at the bottom of the tank 1; a threaded rod 4 rotatably mounted on the inner wall of the bottom of the tank 1, the bottom end of which is fixedly connected to the output shaft of the stirring motor 3; a threaded sleeve 5 threadedly fitted onto the threaded rod 4 and located within the tank 1; a stirring frame 6 fixedly installed onto the threaded sleeve 5 and located within the tank 1; and a scraping mechanism disposed on the threaded sleeve 5 and located within the tank 1. The scraping mechanism heats the material via the resistance heating plate 2. The threaded rod 4 and threaded sleeve 5 serve both as stirring components driving the stirring frame 6 to rotate and as components driving the scraping mechanism upwards, thereby pushing the asphalt upwards and reducing residue within the tank 1.

[0039] The scraping mechanism includes a scraping pusher plate 7 and a guide rod frame 8. The scraping pusher plate 7 is rotatably sleeved on the threaded sleeve 5 and located below the mixing frame 6. The guide rod frame 8 is fixedly installed inside the tank body 1 and slides through the scraping pusher plate 7. The scraping pusher plate 7 in the scraping mechanism pushes the asphalt upward for easy collection. The guide rod frame 8 can guide the scraping pusher plate 7 upward when it is driven.

[0040] The upper and lower sides of the scraper pusher plate 7 are provided with sealing bearing rings 9. The sealing bearing rings 9 are fixedly connected to the threaded sleeve 5. The sealing bearing rings 9 can seal the connection position between the threaded sleeve 5 and the scraper pusher plate 7, and at the same time improve the bearing capacity.

[0041] The threaded rod 4 and the threaded sleeve 5 are provided with a connecting piece 10 at their top ends. The connecting piece 10 is detachably connected to the threaded sleeve 5. The threaded rod 4 is provided with a keyway 11 at its top end. A spline rod 12 engages in the keyway 11. The spline rod 12 is fixedly connected to the connecting piece 10. The connecting piece 10, the keyway 11, and the spline rod 12 serve as connecting parts for the threaded rod 4 and the threaded sleeve 5, enabling synchronous driving during stirring.

[0042] The top of the tank 1 is detachably fitted with a top cover 13, and a mixing cylinder 14 is fixedly installed on the top cover 13. A feeding hopper 15 is fixedly installed on one side of the mixing cylinder 14. A nozzle 16 is provided on the top of the feeding hopper 15. The tank 1 is provided with a liquid supply mechanism corresponding to the nozzle 16. The powder and liquid are mixed through the mixing cylinder 14 and the feeding hopper 15 on the top cover 13, so that the modifier can be added to the material evenly.

[0043] The liquid supply mechanism includes a liquid storage tank 17 and a liquid pump 18. Both the liquid storage tank 17 and the liquid pump 18 are fixedly installed on the tank body 1. The liquid inlet pipe 19 of the liquid pump 18 extends into the liquid storage tank 17. The liquid outlet hose 20 of the liquid pump 18 is connected to the nozzle 16 via a quick connector 21. The liquid pump 18 can draw out the liquid in the liquid storage tank 17 and then spray it out atomized by the nozzle 16 to ensure a mixing effect.

[0044] One side of the tank 1 is fixedly connected to an exhaust pipe 22. A purification cylinder 23 is fixedly installed at the exhaust end of the exhaust pipe 22. A partition net 24 is fixedly installed inside the purification cylinder 23. A sealing net 25 is detachably installed at the opening of the purification cylinder 23. The purification cylinder 23 is filled with purification particles 26. The exhaust gas can be guided into the purification cylinder 23 through the exhaust pipe 22 and purified by the purification particles 26, which is more environmentally friendly.

[0045] The mixing cylinder 14 has an open bottom and a closed top. The inlet of the feed hopper 15 is hinged with a cover. The nozzle 16 is positioned above the outlet of the feed hopper 15.

[0046] The tank 1 is equipped with a controller, which is connected to the resistance heating plate 2, the stirring motor 3 and the liquid pump 18.

[0047] The guide rod frame 8 is L-shaped, and the outer edge of the scraper pusher 7 is in sealed contact with the inner wall of the tank 1.

[0048] It is worth noting that the circuits, electronic components, and modules involved in this invention are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this invention does not involve improvements to the software and methods.

[0049] The working principle of the asphalt preparation device provided by this invention is as follows:

[0050] When preparing asphalt, the asphalt material is first placed into the tank 1, and then the top cover 13 is fixed. Oleic acid or dibutyl phthalate is placed into the storage tank 17. At this time, the material can be prepared. At the same time, the stirring motor 3, the liquid pump 18 and the resistance heating plate 2 are started. At the same time, ultrafine graphite powder is introduced through the feed hopper 15. When the ultrafine graphite powder is introduced, it enters the mixing cylinder 14. The liquid pump 18 uses the liquid inlet pipe 19 to draw oleic acid or dibutyl phthalate from the storage tank 17. The oleic acid or dibutyl phthalate is discharged into the nozzle 16 through the liquid outlet hose 20 and the quick connector 21 and sprayed out. The sprayed oleic acid or dibutyl phthalate mixes with the ultrafine graphite powder and then falls into the tank 1.

[0051] At the same time, the output shaft of the stirring motor 3 drives the threaded rod 4 to rotate. The threaded rod 4 drives the threaded sleeve 5 to rotate through the connecting piece 10, keyway 11 and spline rod 12. The threaded sleeve 5 drives the stirring frame 6 to rotate to stir the material. At the same time, the threaded sleeve 5 drives the sealing bearing ring 9 to rotate along the scraper push plate 7. During the stirring, the resistance heating plate 2 performs temperature control heating.

[0052] After the material preparation is completed, the asphalt can be discharged from each part. When the asphalt is discharged, first remove the top cover 13, then remove the connecting piece 10, so that the spline rod 12 is disengaged from the keyway 11. Then start the stirring motor 3. The output shaft of the stirring motor 3 drives the threaded rod 4 to rotate. When the threaded rod 4 rotates, it drives the threaded sleeve 5 to rise. The threaded sleeve 5 uses two sealing bearing rings 9 to drive the scraper pusher 7 to slide upward along the guide rod frame 8. When the scraper pusher 7 moves upward, it can push the asphalt upward. At the same time as pushing the material, people can use shovels or other tools to collect it, reducing the residue in the tank 1.

[0053] Compared with related technologies, the asphalt preparation apparatus provided by the present invention has the following beneficial effects:

[0054] This invention provides an asphalt preparation device. A resistance heating plate 2 heats the material. A threaded rod 4 and a threaded sleeve 5 serve as both a stirring assembly to drive the stirring frame 6 to rotate and a scraper mechanism to move upwards, thus pushing the asphalt upwards and reducing residue in the tank 1. The scraper pusher 7 in the scraper mechanism pushes the asphalt upwards for easy collection. A guide rod frame 8 guides the scraper pusher 7 upwards. A sealing bearing ring 9 seals the connection between the threaded sleeve 5 and the scraper pusher 7. To improve load-bearing capacity, the connecting piece 10, keyway 11, and spline rod 12 serve as the connecting parts for the threaded rod 4 and threaded sleeve 5, enabling synchronous driving during stirring. The powder and liquid materials are mixed through the mixing cylinder 14 and feed hopper 15 on the top cover 13, allowing the modifier to be added evenly to the materials. The liquid material in the storage tank 17 can be extracted by the liquid pump 18 and then atomized and sprayed out by the nozzle 16 to ensure the mixing effect. The exhaust gas can be introduced into the purification cylinder 23 through the exhaust pipe 22 and purified by the purification particles 26, which is more environmentally friendly.

[0055] It should be noted that the device structure and accompanying drawings of this invention mainly describe the principle of this invention. In terms of the technical aspects of this design principle, the configuration of the device's power mechanism, power supply system, and control system is not fully described. However, those skilled in the art who understand the principle of the invention can clearly understand the specifics of its power mechanism, power supply system, and control system.

[0056] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An asphalt preparation apparatus, characterized in that, include: The tank body has a double layer; A resistance heating plate, wherein the resistance heating plate is disposed within the interlayer; A stirring motor is fixedly installed at the bottom of the tank. A threaded rod is rotatably mounted on the bottom inner wall of the tank, and the bottom end of the threaded rod is fixedly connected to the output shaft of the stirring motor. A threaded sleeve, which is threadedly fitted onto the threaded rod and located inside the tank; A stirring frame, which is fixedly installed on the threaded sleeve and located inside the tank; A scraping mechanism is provided on the threaded sleeve and located inside the tank; The scraping mechanism includes a scraping pusher plate and a guide rod frame. The scraping pusher plate is rotatably sleeved on the threaded sleeve and located below the stirring frame. The guide rod frame is fixedly installed in the tank body and slides through the scraping pusher plate. The upper and lower sides of the scraper pusher are provided with sealing bearing rings, and the sealing bearing rings are fixedly connected to the threaded sleeve; The threaded rod and the threaded sleeve are provided with a connecting piece at their top ends. The connecting piece is detachably connected to the threaded sleeve. The threaded rod is provided with a keyway at its top end. A spline rod engages in the keyway and is fixedly connected to the connecting piece.

2. The asphalt preparation apparatus according to claim 1, characterized in that, The top of the tank is detachably fitted with a top cover, on which a mixing cylinder is fixedly installed. A feed hopper is fixedly installed on one side of the mixing cylinder, and a nozzle is provided on the top of the feed hopper. The tank is provided with a liquid supply mechanism corresponding to the nozzle.

3. The asphalt preparation apparatus according to claim 2, characterized in that, The liquid supply mechanism includes a liquid storage tank and a liquid pump. Both the liquid storage tank and the liquid pump are fixedly installed on the tank body. The liquid pump's inlet pipe extends into the liquid storage tank, and the liquid pump's outlet hose is connected to the nozzle using a quick connector.

4. The asphalt preparation apparatus according to claim 1, characterized in that, A waste gas exhaust pipe is fixedly connected to one side of the tank. A purification cylinder is fixedly installed at the exhaust end of the waste gas exhaust pipe. A partition net is fixedly installed inside the purification cylinder. A sealing net is detachably installed at the opening of the purification cylinder. The purification cylinder is filled with purification particles.

5. The asphalt preparation apparatus according to claim 2, characterized in that, The mixing cylinder has an open bottom and a closed top. The inlet of the feed hopper is hinged with a cap, and the nozzle is positioned above the outlet of the feed hopper.

6. The asphalt preparation apparatus according to claim 3, characterized in that, The tank is equipped with a controller, which is connected to a resistance heating plate, a stirring motor, and a liquid pump.

7. The asphalt preparation apparatus according to claim 1, characterized in that, The guide rod frame is L-shaped, and the outer edge of the scraper pusher plate is in sealed contact with the inner wall of the tank.

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