Asphalt filtering device with intelligent temperature adjusting function

Abstract

The invention discloses an asphalt filtering device with an intelligent temperature adjusting function, and relates to the technical field of asphalt filtering, the asphalt filtering device comprises a filtering structure, a feeding hopper, a feeding pipeline, a defoaming structure and a discharging channel, the filtering structure adopts the intelligent temperature adjusting technology, the temperature of heat conduction oil is automatically adjusted, the temperature of heated asphalt is maintained in a certain range, and the heating temperature of the asphalt is kept in a certain range. The stability of a product is improved, waste gas generated during filtering can be absorbed by the adsorption plate rotating at regular time, after the adsorption plate adsorbs a certain amount of impurities, the impurities attached to the surface of the adsorption plate can be removed, it is guaranteed that the adsorption plate is always kept in the optimal adsorption state, meanwhile, the adsorbed waste gas can preheat unfiltered asphalt, and the adsorption efficiency is improved. The defoaming structure can enable bubbles in the asphalt to float to the liquid level by applying vibration after the asphalt is filtered, and the bubbles gathered on the liquid level are punctured by using the defoaming brush, so that not only is the flowability of the asphalt improved, but also the overall stability of the asphalt is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of asphalt filtration, and in particular to an asphalt filtration device with an intelligent temperature adjustment function. Background Art

[0002] With the continuous increase of engineering projects such as highway construction, urban infrastructure and airport runways, the requirements for the quality of asphalt mixtures are also increasing. During the refining, storage or transportation of asphalt, solid particles such as dust, metal debris, sand and gravel, unreacted raw material residues or other foreign substances may be mixed in. These impurities may cause the asphalt mixture to be uneven, affecting the physical properties and chemical stability of the asphalt, and ultimately affecting the durability of the road. Filtering the asphalt can improve the uniformity and purity of the asphalt, making it meet the engineering standards. The prior art has defects: during the filtering process, it is difficult to ensure the temperature of the asphalt, resulting in a decline in the quality of the asphalt; it is difficult to ensure the treatment effect of the waste gas generated during the asphalt filtration process for a long time, and at the same time, the heat in the waste gas is directly discharged, resulting in waste; the remaining bubbles after asphalt filtration will not only affect the viscosity and uniformity of the asphalt, but may also cause uneven spreading during construction, thereby reducing the overall engineering quality. Summary of the Invention

[0003] The purpose of the present invention is to provide an asphalt filtration device with an intelligent temperature adjustment function to solve the problems raised in the prior art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: The asphalt filtration device includes a filtration structure. One side of the filtration structure is provided with a feed pipeline, and one side of the feed pipeline is provided with a feed hopper. A discharge valve is installed between the feed pipeline and the filtration structure. A defoaming structure is installed below the filtration structure. One side of the defoaming structure is provided with a discharge pipeline. A second discharge valve is installed between the defoaming structure and the discharge pipeline. The first discharge valve and the second discharge valve are connected to a control system.

[0005] The filtration structure includes a filtration housing. One side of the filtration housing is provided with a defoaming structure. The feed pipeline is installed at one end of the filtration housing. A filter plate is installed on one side of the filtration housing. A stirring structure is installed inside the filtration housing. A heating cavity is provided on the filtration housing, and the heating cavity is filled with heat-conducting oil. A temperature adjustment structure is installed at the other end of the filtration housing. An exhaust gas treatment structure is installed on one side of the filtration housing.

[0006] The stirring structure includes a gear ring which is installed inside the filtration housing. A sealing plate is rotatably connected to the gear ring, and a planetary gear is installed on the sealing plate. The planetary gear meshes with the gear ring. A first rotating shaft is installed inside the planetary gear, and a first stirring blade is installed on the outer surface of the first rotating shaft. A transmission shaft is rotatably connected to the filtration housing, and a sun gear is installed on the transmission shaft. The sun gear meshes with the planetary gear. A groove is provided on the sun gear, and a second stirring blade is installed on the outer surface of the transmission shaft. The transmission shaft drives the sun gear and the second stirring blade to rotate. The sun gear drives the planetary gear to revolve around the sun gear while rotating on its own axis. The planetary gear drives the first rotating shaft to rotate, and the first rotating shaft drives the first stirring blade to rotate. The first stirring blade and the second stirring blade stir the asphalt in the filtration housing evenly, facilitating filtration. The asphalt flows from the filter plate into the defoaming housing.

[0007] The temperature control structure includes an oil inlet pipe, one end of which is installed on the filtration housing and is connected to the heating chamber. An oil outlet pipe is installed on one side of the filtration housing and is connected to the heating chamber. One end of the oil outlet pipe is installed with a distributing oil pipe, one end of the distributing oil pipe is installed with a temperature control pipe, one end of the temperature control pipe is installed with a driving structure, one end of the driving structure is installed with a centrifugal pump, and one end of the centrifugal pump is installed on the oil inlet pipe. The centrifugal pump is connected to the control system. The control system controls the centrifugal pump to start, and the centrifugal pump transports the heat-conducting oil from the oil inlet pipe to the heating chamber and then to the distributing oil pipe.

[0008] The temperature control pipe includes a cooling pipe. One side of the cooling pipe is equipped with a connecting pipe. One side of the connecting pipe is equipped with a heating pipe. A heater is installed inside the heating pipe. One end of the cooling pipe and the heating pipe is installed on the oil distribution pipe, and the other end of the cooling pipe and the heating pipe is installed on the driving structure. Inside the connecting pipe, there are a bimetal block and a fixing plate. A connecting column is slidably connected to the bimetal block. One end of the connecting column is equipped with a plug head. The connecting column slides on the fixing plate. A limiting plate is installed on the connecting column. A spring is installed between the limiting plate and the fixing plate. The spring is sleeved on the connecting column. The other end of the connecting column is equipped with a plunger. A through groove is provided on the plunger. The heater is connected to the control system. When the temperature in the heating chamber rises, the plug head transfers the temperature to the bimetal block. The middle part of the bimetal block bulges. The bimetal block pushes the limiting plate to move away from the bimetal block. The limiting plate drives the connecting column to move. The connecting column drives the plug head and the plunger to move. Part of the heat-conducting oil flows from the cooling pipe to the confluence pipe, and another part of the heat-conducting oil flows from the heating pipe to the confluence pipe until the heater heats the heat-conducting oil in the heating pipe to the predetermined maximum temperature, and the plunger blocks the heating pipe. When the temperature in the heating chamber drops, the middle part of the bimetal block returns to the initial state. The spring stretches and drives the limiting plate to move towards the bimetal block. The limiting plate drives the connecting column to move. The connecting column drives the plug head and the plunger to move. Part of the heat-conducting oil enters the heating pipe. The heater heats the heat-conducting oil to raise the temperature of the heat-conducting oil in the heating chamber. The heat-conducting oil transfers the heat to the asphalt in the filter housing. All the heat-conducting oil flows out from the cooling pipe to the confluence pipe. The heat-conducting oil in the confluence pipe flows from the return pipe to the centrifugal pump. The centrifugal pump transports the heat-conducting oil to the inlet pipe.

[0009] The driving structure includes a confluence pipe. One end of the confluence pipe is equipped with a return pipe. One end of the return pipe is installed on the centrifugal pump. Inside the return pipe, there is a first support plate. A second rotating shaft is rotatably connected to the first support plate. An oil discharge fan and a first bevel gear are installed on the second rotating shaft. One end of the filter housing is equipped with an exhaust chamber. A centrifugal impeller is installed in the exhaust chamber. The centrifugal impeller is installed on the transmission shaft. A second bevel gear is installed at one end of the transmission shaft. The first bevel gear and the second bevel gear are meshed. The heat-conducting oil flows in the return pipe. The heat-conducting oil drives the oil discharge fan to rotate. The oil discharge fan drives the second rotating shaft to rotate. The second rotating shaft drives the first bevel gear to rotate. The first bevel gear drives the second bevel gear to rotate. The second bevel gear drives the transmission shaft to rotate. The transmission shaft drives the centrifugal impeller to rotate.

[0010] The exhaust gas treatment structure includes a protection box, which is installed on the outer surface of the filtration housing. An air inlet structure is installed inside the protection box. One end of the air inlet structure is installed on one side of the centrifugal impeller, and the other end of the air inlet structure is provided with a mounting plate, which is installed on the inner wall of the protection box. An adsorption plate is rotatably connected inside the mounting plate. The other end of the adsorption plate is provided with an exhaust pipe. One end of the exhaust pipe is provided with a spiral pipe, which is installed on the outer surface of the feed pipe. A ratchet wheel is installed on the outer surface of the adsorption plate. A pendulum is rotatably connected to the air inlet structure. A first support block is installed on the air inlet structure. One end of the first support block is rotatably connected to a third rotating shaft. A turntable is installed at one end of the third rotating shaft. A pawl is installed on the outer surface of the turntable. The pawl and the ratchet wheel cooperate with each other. A third bevel gear is installed at the other end of the third rotating shaft.

[0011] The air inlet structure includes an air inlet pipe, which is installed on one side of the adsorption plate. A second support plate is installed inside the air inlet pipe. A fourth rotating shaft is rotatably connected to the second support plate. An exhaust fan is installed at one end of the fourth rotating shaft. A fifth bevel gear and a second support block are installed at the other end of the fourth rotating shaft. One end of the second support block is rotatably connected to a fifth rotating shaft. A sixth bevel gear is installed on one side of the fifth rotating shaft. The sixth bevel gear meshes with the fifth bevel gear. A fourth bevel gear is installed at the other end of the fifth rotating shaft. The fourth bevel gear meshes with the third bevel gear. A cam is installed on the fifth rotating shaft. The cam is located on one side of the pendulum. The exhaust gas generated after heating the asphalt is adsorbed by the centrifugal impeller. The exhaust gas is transported by the centrifugal impeller into the air inlet pipe. The exhaust gas drives the exhaust fan to rotate. The exhaust fan drives the fourth rotating shaft to rotate. The fourth rotating shaft drives the fifth bevel gear to rotate. The fifth bevel gear drives the sixth bevel gear to rotate. The sixth bevel gear drives the fifth rotating shaft to rotate. The fifth rotating shaft drives the cam and the fourth bevel gear to rotate. The fourth bevel gear drives the third bevel gear to rotate. The third bevel gear drives the third rotating shaft to rotate. The third rotating shaft drives the turntable to rotate. The turntable drives the pawl to rotate. The pawl drives the ratchet wheel to rotate intermittently. The ratchet wheel drives the adsorption plate to rotate in the mounting plate, so that each area of the adsorption surface can be evenly contacted by the exhaust gas, realizing the efficient adsorption of suspended particles and harmful impurities in the exhaust gas, thus significantly improving the impurity capture efficiency. The cam pushes the pendulum to swing. The pendulum swings onto the adsorption plate, impacting the adsorption plate, vibrating the impurities attached to the adsorption plate, ensuring that the adsorption plate always maintains the best adsorption state, and avoiding the decline of the filtration effect due to long-term accumulation. The adsorbed exhaust gas enters the exhaust pipe and then enters the spiral pipe from the exhaust pipe, transferring the heat in the exhaust gas to the feed pipe to preheat the unfiltered asphalt, increasing the initial temperature of the asphalt, thereby reducing the energy consumption required in the subsequent heating process and achieving the effect of energy conservation and consumption reduction.

[0012] The defoaming structure includes a defoaming outer shell, which is installed on one side of the filtering outer shell. The discharge pipeline is installed on one side of the defoaming outer shell. One end of the transmission shaft is equipped with a scraper and an elastic coupling. One end of the elastic coupling is installed with a sixth rotating shaft. One end of the sixth rotating shaft is installed with an eccentric wheel. A defoaming brush is installed on the sixth rotating shaft. The bottom of the defoaming outer shell is installed with a defoaming pipe. The sixth rotating shaft is located inside the defoaming pipe. The outer surface of the defoaming pipe is provided with a diversion groove. When the filtered asphalt enters the defoaming outer shell, the transmission shaft drives the elastic coupling to rotate. The elastic coupling drives the sixth rotating shaft to rotate. The sixth rotating shaft drives the eccentric wheel and the defoaming brush to rotate. The eccentric wheel causes the sixth rotating shaft to generate vibrations with a certain frequency and amplitude, enabling the bubbles inside the asphalt to quickly float to the liquid surface. After the bubbles reach the liquid surface, the defoaming brush rotates to puncture the bubbles aggregated on the liquid surface one by one, allowing the air inside the bubbles to quickly escape, thereby eliminating the potential instability factors caused by the bubbles. This not only improves the fluidity of the asphalt but also greatly enhances its overall stability.

[0013] The plugging head is made of temperature-sensitive material, and activated carbon is provided on the adsorption plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention adopts intelligent temperature control technology, which can automatically adjust the temperature of the heat-conducting oil according to the preset temperature range, maintaining the temperature of the heated asphalt within a certain range, ensuring the stability and efficiency of the entire heating and filtering process, effectively preventing the fluctuation of asphalt quality caused by improper temperature control, avoiding the deterioration of asphalt performance due to excessive temperature, and eliminating the decline in filtering efficiency caused by insufficient temperature, thereby greatly improving the stability of the product and the final engineering quality; 2. The present invention adopts waste gas filtration technology. By rotating the adsorption plate regularly, each area of the adsorption surface can be evenly contacted with the waste gas, achieving efficient adsorption of suspended particles and harmful impurities in the waste gas, thereby significantly improving the impurity capture efficiency. After the adsorption plate adsorbs a certain amount of impurities, the impurities attached to the surface of the adsorption plate can be removed in a timely manner, ensuring that the adsorption plate always maintains the best adsorption state, avoiding the decline in filtering effect caused by long-term accumulation. At the same time, the adsorbed waste gas can preheat the unfiltered asphalt, increasing the initial temperature of the asphalt, thereby reducing the energy consumption required in the subsequent heating process and achieving the effect of energy conservation and consumption reduction; 3. The present invention adopts vibration defoaming technology. After the asphalt is filtered, by applying vibrations with a certain frequency and amplitude, the bubbles inside the asphalt quickly float to the liquid surface. After the bubbles reach the liquid surface, the defoaming brush punctures the bubbles aggregated on the liquid surface one by one, allowing the air inside the bubbles to quickly escape, thereby eliminating the potential instability factors caused by the bubbles. This not only improves the fluidity of the asphalt but also greatly enhances its overall stability. Description of the Drawings

[0015] Figure 1 A perspective view of the asphalt filtering device of the present invention; Figure 2 An exploded view of the filtering structure of the present invention; Figure 3 A perspective view of the stirring structure of the present invention; Figure 4 A perspective view of the temperature adjusting structure of the present invention; Figure 5 An exploded view of the temperature adjusting pipe of the present invention; Figure 6 An exploded view of the driving structure of the present invention; Figure 7 An exploded view of the waste gas treatment structure of the present invention; Figure 8 An exploded view of the air inlet structure of the present invention; Figure 9 A perspective view of the defoaming structure of the present invention.

[0016] In the figure: 1. Filtering structure; 11. Filtering housing; 12. Filter plate; 13. Stirring structure; 131. Ring gear; 132. Sealing plate; 133. Planet gear; 134. Sun gear; 135. First rotating shaft; 136. First stirring blade; 137. Transmission shaft; 138. Second stirring blade; 14. Temperature adjusting structure; 141. Inlet oil pipe; 142. Outlet oil pipe; 143. Branch oil pipe; 144. Temperature adjusting pipe; 1441. Cooling pipe; 1442. Heating pipe; 1443. Connecting pipe; 1444. Plug; 1445. Bimetallic block; 1446. Spring; 1447. Plunger; 1448. Fixed plate; 145. Driving structure; 1451. Confluent pipe; 1452. Return pipe; 1453. Oil discharge fan; 1454. First support plate; 1455. First bevel gear; 1456. Second bevel gear; 1457. Centrifugal impeller; 146. Centrifugal pump; 15. Waste gas treatment structure; 151. Protection box; 152. Air inlet structure; 1521. Air inlet pipe; 1522. Fourth rotating shaft; 1523. Exhaust fan; 1524. Second support plate; 1525. Fifth bevel gear; 1526. Sixth bevel gear; 1527. Second support block; 1528. Cam; 1529. Fourth bevel gear; 153. Mounting plate; 154. Adsorption plate; 155. Ratchet; 156. Turntable; 157. Third bevel gear; 158. Pendulum; 159. First support block; 2. Feed hopper; 3. Feed pipe; 4. Defoaming structure; 41. Defoaming housing; 42. Scraper; 43. Elastic coupling; 44. Sixth rotating shaft; 45. Defoaming pipe; 46. Defoaming brush; 5. Discharge pipe. Detailed implementation manners

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] Embodiment: As Figures 1 - 9 shown, the present invention provides a technical solution. The asphalt filtering device includes a filtering structure 1. One side of the filtering structure 1 is installed with a feeding pipeline 3. One side of the feeding pipeline 3 is installed with a feeding hopper 2. A first discharging valve is installed between the feeding pipeline 3 and the filtering structure 1. A defoaming structure 4 is installed below the filtering structure 1. One side of the defoaming structure 4 is installed with a discharging pipeline 5. A second discharging valve is installed between the defoaming structure 4 and the discharging pipeline 5. The first discharging valve and the second discharging valve are connected to a control system.

[0019] The filtering structure 1 includes a filtering housing 11. One side of the filtering housing 11 is installed with a defoaming structure 4. The feeding pipeline 3 is installed at one end of the filtering housing 11. One side of the filtering housing 11 is installed with a filter plate 12. A stirring structure 13 is installed inside the filtering housing 11. A heating cavity is provided on the filtering housing 11 and is filled with heat-conducting oil. A temperature regulating structure 14 is installed at the other end of the filtering housing 11. An exhaust gas treatment structure 15 is installed on one side of the filtering housing 11.

[0020] The stirring structure 13 includes a gear ring 131. The gear ring 131 is installed inside the filtering housing 1. A sealing plate 132 is rotatably connected to the gear ring 131. A planetary gear 133 is installed on the sealing plate 132. The planetary gear 133 meshes with the gear ring 131. A first rotating shaft 135 is installed inside the planetary gear 133. A first stirring blade 136 is installed on the outer surface of the first rotating shaft 135. A transmission shaft 137 is rotatably connected to the filtering housing 11. A sun gear 134 is installed on the transmission shaft 137. The sun gear 134 meshes with the planetary gear 133. A groove is provided on the sun gear 134. A second stirring blade 138 is installed on the outer surface of the transmission shaft 137. The transmission shaft 137 drives the sun gear 134 and the second stirring blade 138 to rotate. While the sun gear 134 drives the planetary gear 133 to revolve around the sun gear 134 and rotate on its own, the planetary gear 133 drives the first rotating shaft 135 to rotate, and the first rotating shaft 135 drives the first stirring blade 136 to rotate. The first stirring blade 136 and the second stirring blade 138 stir the asphalt in the filtering housing 11 evenly, facilitating filtration. The asphalt flows from the filter plate 12 into the defoaming housing 41.

[0021] The temperature control structure 14 includes an oil inlet pipe 141. One end of the oil inlet pipe 141 is installed on the filter housing 11. The oil inlet pipe 141 is communicated with the heating chamber. One side of the filter housing 11 is provided with an oil outlet pipe 142, and the oil outlet pipe 142 is communicated with the heating chamber. One end of the oil outlet pipe 142 is provided with a distribution oil pipe 143. One end of the distribution oil pipe 143 is provided with a temperature control pipe 144. One end of the temperature control pipe 144 is provided with a driving structure 145. One end of the driving structure 145 is provided with a centrifugal pump 146. One end of the centrifugal pump 146 is installed on the oil inlet pipe 141, and the centrifugal pump 146 is connected to the control system. The control system controls the centrifugal pump 146 to start. The centrifugal pump 146 transports the heat-conducting oil from the oil inlet pipe 141 to the heating chamber and then to the distribution oil pipe 143 through the oil outlet pipe 142.

[0022] The temperature control pipe 144 includes a cooling pipe 1441. One side of the cooling pipe 1441 is provided with a connecting pipe 1443. One side of the connecting pipe 1443 is provided with a heating pipe 1442. A heater is installed inside the heating pipe 1442. One ends of the cooling pipe 1441 and the heating pipe 1442 are installed on the distribution oil pipe 143, and the other ends of the cooling pipe 1441 and the heating pipe 1442 are installed on the driving structure 145. A bimetallic block 1445 and a fixing plate 1448 are installed inside the connecting pipe 1443. A connecting column is slidably connected to the bimetallic block 1445. One end of the connecting column is provided with a plug 1444, and the plug 1444 is made of a temperature-sensitive material. The connecting column slides on the fixing plate 1448. A limiting plate is installed on the connecting column. A spring 1446 is installed between the limiting plate and the fixing plate 1448, and the spring 1446 is sleeved on the connecting column. The other end of the connecting column is provided with a plunger 1447, and a through groove is provided on the plunger 1447. The heater is connected to the control system.

[0023] When the temperature in the heating chamber rises, the plug 1444 transfers the temperature to the bimetallic block 1445. The middle of the bimetallic block 1445 bulges, and the bimetallic block 1445 pushes the limit plate to move away from the bimetallic block 1445. The limit plate drives the connecting column to move, and the connecting column drives the plug 1444 and the plunger 1447 to move. Part of the heat-conducting oil flows from the cooling pipe 1441 to the confluence pipe 1451, and another part of the heat-conducting oil flows from the heating pipe 1442 to the confluence pipe 1451 until the heater heats the heat-conducting oil in the heating pipe 1442 to the predetermined maximum temperature, and the plunger 1447 blocks the heating pipe 1442. When the temperature in the heating chamber drops, the middle of the bimetallic block 1445 returns to the initial state, and the stretched spring 1446 drives the limit plate to move towards the bimetallic block 1445. The limit plate drives the connecting column to move, and the connecting column drives the plug 1444 and the plunger 1447 to move. Part of the heat-conducting oil enters the heating pipe 1442, and the heater heats the heat-conducting oil to increase the temperature of the heat-conducting oil in the heating chamber. The heat-conducting oil transfers the heat to the asphalt in the filter housing 11. All the heat-conducting oil flows out from the cooling pipe 1441 to the confluence pipe 1451, and the heat-conducting oil in the confluence pipe 1451 flows from the return pipe 1452 to the centrifugal pump 146, and the centrifugal pump 146 transports the heat-conducting oil to the inlet pipe 141.

[0024] The driving structure 145 includes a confluence pipe 1451. One end of the confluence pipe 1451 is installed with a return pipe 1452. One end of the return pipe 1452 is installed on the centrifugal pump 146. A first support plate 1454 is installed inside the return pipe 1452. A second rotating shaft is rotatably connected to the first support plate 1454. An oil discharge fan 1453 and a first bevel gear 1455 are installed on the second rotating shaft. One end of the filter housing 11 is installed with an exhaust chamber, and a centrifugal impeller 1457 is installed in the exhaust chamber. The centrifugal impeller 1457 is installed on the transmission shaft 137. A second bevel gear 1456 is installed at one end of the transmission shaft 137. The first bevel gear 1455 and the second bevel gear 1456 are meshed. The heat-conducting oil flows in the return pipe 1452, and the heat-conducting oil drives the oil discharge fan 1453 to rotate. The oil discharge fan 1453 drives the second rotating shaft to rotate. The second rotating shaft drives the first bevel gear 1455 to rotate. The first bevel gear 1455 drives the second bevel gear 1456 to rotate. The second bevel gear 1456 drives the transmission shaft 137 to rotate. The transmission shaft 137 drives the centrifugal impeller 1457 to rotate.

[0025] The exhaust gas treatment structure 15 includes a protection box 151 which is installed on the outer surface of the filtration housing 11. An air inlet structure 152 is installed inside the protection box 151. One end of the air inlet structure 152 is installed on one side of the centrifugal impeller 1457, and the other end of the air inlet structure 152 is provided with a mounting plate 153 which is installed on the inner wall of the protection box 151. A suction plate 154 is rotatably connected inside the mounting plate 153. Activated carbon is provided on the suction plate 154. The other end of the suction plate 154 is installed with an exhaust pipe. One end of the exhaust pipe is installed with a spiral pipe which is installed on the outer surface of the feed pipe 3. A ratchet wheel 155 is installed on the outer surface of the suction plate 154. A pendulum 158 is rotatably connected to the air inlet structure 152. A first support block 159 is installed on the air inlet structure 152. One end of the first support block 159 is rotatably connected to a third rotating shaft. A turntable 156 is installed at one end of the third rotating shaft. A pawl is installed on the outer surface of the turntable 156. The pawl is matched with the ratchet wheel 155. A third bevel gear 157 is installed at the other end of the third rotating shaft.

[0026] The air inlet structure 152 includes an air inlet pipe 1521 which is installed on one side of the suction plate 154. A second support plate 1524 is installed inside the air inlet pipe 1521. A fourth rotating shaft 1522 is rotatably connected to the second support plate 1524. An exhaust fan 1523 is installed at one end of the fourth rotating shaft 1522. A fifth bevel gear 1525 and a second support block 1527 are installed at the other end of the fourth rotating shaft 1522. One end of the second support block 1527 is rotatably connected to a fifth rotating shaft. A sixth bevel gear 1526 is installed on one side of the fifth rotating shaft. The sixth bevel gear 1526 meshes with the fifth bevel gear 1525. A fourth bevel gear 1529 is installed at the other end of the fifth rotating shaft. The fourth bevel gear 1529 meshes with the third bevel gear 157. A cam 1528 is installed on the fifth rotating shaft. The cam 1528 is located on one side of the pendulum 158.

[0027] The waste gas generated after heating the asphalt is adsorbed by the centrifugal impeller 1457. The waste gas is conveyed by the centrifugal impeller 1457 into the air inlet pipe 1521. The waste gas drives the exhaust fan 1523 to rotate. The exhaust fan 1523 drives the fourth rotating shaft 1522 to rotate. The fourth rotating shaft 1522 drives the fifth bevel gear 1525 to rotate. The fifth bevel gear 1525 drives the sixth bevel gear 1526 to rotate. The sixth bevel gear 1526 drives the fifth rotating shaft to rotate. The fifth rotating shaft drives the cam 1528 and the fourth bevel gear 1529 to rotate. The fourth bevel gear 1529 drives the third bevel gear 157 to rotate. The third bevel gear 157 drives the third rotating shaft to rotate. The third rotating shaft drives the turntable 156 to rotate. The turntable 156 drives the pawl to rotate. The pawl drives the ratchet 155 to rotate intermittently. The ratchet 155 drives the adsorption plate 154 to rotate in the mounting plate 153, so that each area of the adsorption surface can be evenly contacted with the waste gas, realizing the efficient adsorption of suspended particles and harmful impurities in the waste gas, thereby significantly improving the impurity capture efficiency. The cam 1528 pushes the pendulum 158 to swing. The pendulum 158 swings onto the adsorption plate 154, generating an impact on the adsorption plate 154, vibrating the impurities attached to the adsorption plate 154, ensuring that the adsorption plate 154 always maintains the best adsorption state, and avoiding the decline of the filtration effect caused by long-term accumulation. The adsorbed waste gas enters the exhaust pipe and then enters the spiral pipe from the exhaust pipe, transferring the heat in the waste gas to the feed pipe 3 to preheat the unfiltered asphalt, increasing the initial temperature of the asphalt, thereby reducing the energy consumption required in the subsequent heating process and achieving the effect of energy conservation and consumption reduction.

[0028] The defoaming structure 4 includes a defoaming outer shell 41. The defoaming outer shell 41 is installed on one side of the filtration outer shell 11. The discharge pipe 5 is installed on one side of the defoaming outer shell 41. One end of the transmission shaft 137 is equipped with a scraper 42 and an elastic coupling 43. One end of the elastic coupling 43 is equipped with a sixth rotating shaft 44. One end of the sixth rotating shaft 44 is equipped with an eccentric wheel. A defoaming brush 46 is installed on the sixth rotating shaft 44. The bottom of the defoaming outer shell 41 is equipped with a defoaming pipe 45. The sixth rotating shaft 44 is located inside the defoaming pipe 45. The outer surface of the defoaming pipe 45 is provided with a diversion groove. When the filtered asphalt enters the defoaming outer shell 41, the transmission shaft 137 drives the elastic coupling 43 to rotate. The elastic coupling 43 drives the sixth rotating shaft 44 to rotate. The sixth rotating shaft 44 drives the eccentric wheel and the defoaming brush 46 to rotate. The eccentric wheel causes the sixth rotating shaft 44 to generate vibrations with a certain frequency and amplitude, causing the bubbles inside the asphalt to quickly float to the liquid surface. After the bubbles reach the liquid surface, the defoaming brush 46 rotates to pierce the bubbles gathered on the liquid surface one by one, causing the air inside the bubbles to quickly escape, thereby eliminating the potential instability factors caused by the bubbles, not only improving the fluidity of the asphalt but also greatly enhancing its overall stability.

[0029] The working principle of the present invention: During operation, asphalt is transported to the feed hopper 2. The asphalt in the feed hopper 2 enters the feed pipe 3. The control system controls the first discharge valve to start, and the asphalt enters the filter housing 11 from the feed pipe 3. After the first discharge valve has been started for a period of time, the control system closes the first discharge valve and starts the control centrifugal pump 146. The centrifugal pump 146 transports the heat-conducting oil from the oil inlet pipe 141 to the heating chamber, and then transports it from the oil outlet pipe 142 to the oil distribution pipe 143. The heat-conducting oil in the oil distribution pipe 143 enters the temperature-regulating pipe 144, and then enters the confluence pipe 1451 from the temperature-regulating pipe 144. The heat-conducting oil in the confluence pipe 1451 flows from the return pipe 1452 back to the centrifugal pump 146. The centrifugal pump 146 transports the heat-conducting oil to the oil inlet pipe 141, and the oil inlet pipe 141 transports the heat-conducting oil to the heating chamber. The heat-conducting oil in the heating chamber transfers heat to the asphalt. The heat-conducting oil flows in the return pipe 1452, driving the oil discharge fan 1453 to rotate. The oil discharge fan 1453 drives the second rotating shaft to rotate, the second rotating shaft drives the first bevel gear 1455 to rotate, the first bevel gear 1455 drives the second bevel gear 1456 to rotate, the second bevel gear 1456 drives the transmission shaft 137 to rotate, and the transmission shaft 137 drives the centrifugal impeller 1457 to rotate.

[0030] When the asphalt is in the filter housing 11, the transmission shaft 137 drives the sun gear 134 and the second stirring blade 138 to rotate. The sun gear 134 drives the planetary gear 133 to revolve around the sun gear 134 while rotating on its own axis. The planetary gear 133 drives the first rotating shaft 135 to rotate, and the first rotating shaft 135 drives the first stirring blade 136 to rotate. The first stirring blade 136 and the second stirring blade 138 stir the asphalt in the filter housing 11 evenly, facilitating filtration.

[0031] When the temperature in the heating chamber rises, the plug 1444 transfers the temperature to the bimetallic block 1445. The middle of the bimetallic block 1445 bulges, and the bimetallic block 1445 pushes the limit plate to move away from the bimetallic block 1445. The limit plate drives the connecting column to move, and the connecting column drives the plug 1444 and the plunger 1447 to move. A part of the heat-conducting oil flows from the temperature-lowering pipe 1441 to the confluence pipe 1451, and another part of the heat-conducting oil flows from the temperature-raising pipe 1442 to the confluence pipe 1451 until the heater heats the heat-conducting oil in the temperature-raising pipe 1442 to the predetermined maximum temperature. Then the plunger 1447 blocks the temperature-raising pipe 1442 to prevent the deterioration of the asphalt performance caused by excessive temperature.

[0032] When the heat-conducting oil transfers heat to the asphalt, the temperature in the heating chamber drops, the middle part of the bimetallic block 1445 returns to its initial state, the spring 1446 stretches and drives the limit plate to move towards the bimetallic block 1445, the limit plate drives the connecting column to move, the connecting column drives the plug 1444 and the plunger 1447 to move, and a part of the heat-conducting oil enters the heating-up pipe 1442. The heater heats the heat-conducting oil, raising the temperature of the heat-conducting oil in the heating chamber, preventing the decrease in filtration efficiency caused by insufficient temperature, and thus greatly improving the stability of the product and the final engineering quality.

[0033] The waste gas generated after the asphalt is heated is adsorbed by the centrifugal impeller 1457. The waste gas is transported by the centrifugal impeller 1457 to the air inlet pipe 1521. The waste gas drives the exhaust fan 1523 to rotate. The exhaust fan 1523 drives the fourth rotating shaft 1522 to rotate. The fourth rotating shaft 1522 drives the fifth bevel gear 1525 to rotate. The fifth bevel gear 1525 drives the sixth bevel gear 1526 to rotate. The sixth bevel gear 1526 drives the fifth rotating shaft to rotate. The fifth rotating shaft drives the cam 1528 and the fourth bevel gear 1529 to rotate. The fourth bevel gear 1529 drives the third bevel gear 157 to rotate. The third bevel gear 157 drives the third rotating shaft to rotate. The third rotating shaft drives the turntable 156 to rotate. The turntable 156 drives the pawl to rotate. The pawl drives the ratchet 155 to rotate intermittently. The ratchet 155 drives the adsorption plate 154 to rotate in the mounting plate 153, enabling each area of the adsorption surface to come into contact with the waste gas evenly, achieving efficient adsorption of suspended particles and harmful impurities in the waste gas, thus significantly improving the impurity trapping efficiency. The cam 1528 pushes the pendulum 158 to swing. The pendulum 158 swings onto the adsorption plate 154, impacting the adsorption plate 154 and vibrating the impurities attached to the adsorption plate 154, ensuring that the adsorption plate 154 always maintains the best adsorption state and avoiding the decrease in filtration effect caused by long-term accumulation. The adsorbed waste gas enters the exhaust pipe and then enters the spiral pipe, transferring the heat in the waste gas to the feeding pipeline 3 to preheat the unfiltered asphalt, raising the initial temperature of the asphalt, thereby reducing the energy consumption required in the subsequent heating process and achieving the effect of energy conservation and consumption reduction.

[0034] When the filtered asphalt enters the defoaming housing 41, the transmission shaft 137 drives the elastic coupling 43 to rotate. The elastic coupling 43 drives the sixth rotating shaft 44 to rotate. The sixth rotating shaft 44 drives the eccentric wheel and the defoaming brush 46 to rotate. The eccentric wheel causes the sixth rotating shaft 44 to vibrate at a certain frequency and amplitude, enabling the bubbles inside the asphalt to quickly float to the liquid surface. After the bubbles reach the liquid surface, the defoaming brush 46 rotates to pierce the bubbles aggregated on the liquid surface one by one, allowing the air inside the bubbles to quickly escape, thus eliminating the potential instability factors caused by the bubbles, not only improving the fluidity of the asphalt but also greatly enhancing its overall stability. The second discharge valve is controlled to start, and the defoamed asphalt is discharged from the discharge pipeline 5.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. An asphalt filtering device with an intelligent temperature adjustment function, characterized in that: The asphalt filtering device includes a filtering structure (1). One side of the filtering structure (1) is provided with a feed pipeline (3). One side of the feed pipeline (3) is provided with a feed hopper (2). A discharge valve is installed between the feed pipeline (3) and the filtering structure (1). A defoaming structure (4) is installed below the filtering structure (1). One side of the defoaming structure (4) is provided with a discharge pipeline (5). A second discharge valve is installed between the defoaming structure (4) and the discharge pipeline (5). The first discharge valve and the second discharge valve are connected to a control system.

2. The asphalt filtration device with an intelligent temperature regulation function according to claim 1, characterized in that: The filtering structure (1) includes a filtering outer shell (11). One side of the filtering outer shell (11) is provided with a defoaming structure (4). The feed pipeline (3) is installed at one end of the filtering outer shell (11). One side of the filtering outer shell (11) is provided with a filter plate (12). A stirring structure (13) is installed inside the filtering outer shell (11). A heating cavity is provided on the filtering outer shell (11), and the heating cavity is filled with heat-conducting oil. A temperature regulating structure (14) is installed at the other end of the filtering outer shell (11). An exhaust gas treatment structure (15) is installed on one side of the filtering outer shell (11).

3. An asphalt filtration device with an intelligent temperature adjustment function according to claim 2, characterized in that: The stirring structure (13) includes a gear ring (131). The gear ring (131) is installed inside the filtering outer shell (1). A sealing plate (132) is rotatably connected to the gear ring (131). A planetary gear (133) is installed on the sealing plate (132). The planetary gear (133) meshes with the gear ring (131). A first rotating shaft (135) is installed inside the planetary gear (133). A first stirring blade (136) is installed on the outer surface of the first rotating shaft (135). A transmission shaft (137) is rotatably connected to the filtering outer shell (11). A sun gear (134) is installed on the transmission shaft (137). The sun gear (134) meshes with the planetary gear (133). A groove is provided on the sun gear (134). A second stirring blade (138) is installed on the outer surface of the transmission shaft (137).

4. The asphalt filtering device with an intelligent temperature regulation function according to claim 3, characterized in that: The temperature regulating structure (14) includes an oil inlet pipe (141). One end of the oil inlet pipe (141) is installed on the filtering outer shell (11). The oil inlet pipe (141) is communicated with the heating cavity. An oil outlet pipe (142) is installed on one side of the filtering outer shell (11). The oil outlet pipe (142) is communicated with the heating cavity. One end of the oil outlet pipe (142) is provided with a sub-oil pipe (143). One end of the sub-oil pipe (143) is provided with a temperature regulating pipe (144). One end of the temperature regulating pipe (144) is provided with a driving structure (145). One end of the driving structure (145) is provided with a centrifugal pump (146). One end of the centrifugal pump (146) is installed on the oil inlet pipe (141). The centrifugal pump (146) is connected to a control system.

5. The asphalt filtering device with an intelligent temperature regulation function according to claim 4, characterized in that: The temperature regulating pipe (144) includes a cooling pipe (1441). A connecting pipe (1443) is installed on one side of the cooling pipe (1441). A heating pipe (1442) is installed on one side of the connecting pipe (1443). A heater is installed inside the heating pipe (1442). One ends of the cooling pipe (1441) and the heating pipe (1442) are installed on the oil distribution pipe (143). The other ends of the cooling pipe (1441) and the heating pipe (1442) are installed on the driving structure (145). A bimetallic block (1445) and a fixing plate (1448) are installed inside the connecting pipe (1443). A connecting column is slidably connected to the bimetallic block (1445). A plugging head (1444) is installed at one end of the connecting column. The connecting column slides on the fixing plate (1448). A limiting plate is installed on the connecting column. A spring (1446) is installed between the limiting plate and the fixing plate (1448). The spring (1446) is sleeved on the connecting column. A plunger (1447) is installed at the other end of the connecting column. A through groove is provided on the plunger (1447). The heater is connected to the control system.

6. The asphalt filtering device with an intelligent temperature adjustment function according to claim 5, characterized in that: The driving structure (145) includes a confluence pipe (1451). A reflux pipe (1452) is installed at one end of the confluence pipe (1451). One end of the reflux pipe (1452) is installed on the centrifugal pump (146). A first support plate (1454) is installed inside the reflux pipe (1452). A second rotating shaft is rotatably connected to the first support plate (1454). An oil discharging fan (1453) and a first bevel gear (1455) are installed on the second rotating shaft. An exhaust air cavity is installed at one end of the filter housing (11). A centrifugal impeller (1457) is installed in the exhaust air cavity. The centrifugal impeller (1457) is installed on the transmission shaft (137). A second bevel gear (1456) is installed at one end of the transmission shaft (137). The first bevel gear (1455) and the second bevel gear (1456) are meshed.

7. An asphalt filtering device with an intelligent temperature adjustment function according to claim 6, characterized in that: The waste gas treatment structure (15) includes a protection box (151), the protection box (151) is installed on the outer surface of the filter housing (11), an air inlet structure (152) is installed inside the protection box (151), one end of the air inlet structure (152) is installed on one side of the centrifugal impeller (1457), the other end of the air inlet structure (152) is installed with a mounting plate (153), the mounting plate (153) is installed on the inner wall of the protection box (151), an adsorption plate (154) is rotatably connected inside the mounting plate (153), the other end of the adsorption plate (154) is installed with an exhaust pipe, one end of the exhaust pipe is installed with a spiral pipe, the spiral pipe is installed on the outer surface of the feed pipe (3), a ratchet wheel (155) is installed on the outer surface of the adsorption plate (154), a pendulum (158) is rotatably connected to the air inlet structure (152), a first support block (159) is installed on the air inlet structure (152), one end of the first support block (159) is rotatably connected to a third rotating shaft, a turntable (156) is installed at one end of the third rotating shaft, a pawl is installed on the outer surface of the turntable (156), the pawl is matched with the ratchet wheel (155), and a third bevel gear (157) is installed at the other end of the third rotating shaft.

8. An asphalt filtering device with an intelligent temperature regulation function according to claim 7, characterized in that: The air inlet structure (152) includes an air inlet pipe (1521), the air inlet pipe (1521) is installed on one side of the adsorption plate (154), a second support plate (1524) is installed inside the air inlet pipe (1521), a fourth rotating shaft (1522) is rotatably connected to the second support plate (1524), an exhaust fan (1523) is installed at one end of the fourth rotating shaft (1522), a fifth bevel gear (1525) and a second support block (1527) are installed at the other end of the fourth rotating shaft (1522), one end of the second support block (1527) is rotatably connected to a fifth rotating shaft, a sixth bevel gear (1526) is installed on one side of the fifth rotating shaft, the sixth bevel gear (1526) is meshed with the fifth bevel gear (1525), a fourth bevel gear (1529) is installed at the other end of the fifth rotating shaft, the fourth bevel gear (1529) is meshed with the third bevel gear (157), and a cam (1528) is installed on the fifth rotating shaft, and the cam (1528) is located on one side of the pendulum (158).

9. The asphalt filtering device with an intelligent temperature regulation function according to claim 8, characterized in that: The defoaming structure (4) includes a defoaming outer shell (41), the defoaming outer shell (41) is installed on one side of the filtering outer shell (11), the discharge pipe (5) is installed on one side of the defoaming outer shell (41), one end of the transmission shaft (137) is equipped with a scraper (42) and an elastic coupling (43), one end of the elastic coupling (43) is equipped with a sixth rotating shaft (44), one end of the sixth rotating shaft (44) is equipped with an eccentric wheel, a defoaming brush (46) is installed on the sixth rotating shaft (44), a defoaming pipe (45) is installed at the bottom of the defoaming outer shell (41), the sixth rotating shaft (44) is located inside the defoaming pipe (45), and a diversion groove is arranged on the outer surface of the defoaming pipe (45).

10. An asphalt filtration device with an intelligent temperature regulation function according to claim 9, characterized in that: The plugging head (1444) is made of a temperature-sensitive material, and activated carbon is arranged on the adsorption plate (154).

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