Asphalt filtering device with automatic screen cleaning function

Abstract

The invention discloses an asphalt filtering device with an automatic screen cleaning function, and relates to the technical field of filtering equipment.The filtering device comprises a feeding barrel and a treatment barrel, the feeding barrel is communicated with the treatment barrel, a dirt storage barrel is arranged at the bottom end of the treatment barrel, the treatment barrel is communicated with the dirt storage barrel, and a discharging motor is arranged in the treatment barrel; a dispersing screw rod is arranged at the output end of the discharging motor and sleeved with a dispersing disc, a filter screen is rotationally connected into the treatment barrel, a backwashing assembly is installed on the treatment barrel and slidably connected with the filter screen, a dispersing frame is arranged on the dispersing disc, a diffusion frame is arranged on the dispersing frame, and the diffusion frame is slidably connected with the dispersing frame. A heater is arranged in the treatment barrel, a plurality of heat transfer grooves are formed in the treatment barrel, a heating net is arranged on the heater, the heating net is embedded into the heat transfer grooves, a guide groove is formed in the treatment barrel, and the guide groove is communicated with the sewage storage barrel.

Description

Technical Field

[0001] The invention relates to the technical field of filtering equipment, in particular to an asphalt filtering device with an automatic screen cleaning function. Background Art

[0002] Asphalt is a high-viscosity organic liquid that is in liquid form and has a black surface. Currently, filtering devices are often needed to filter asphalt during the production process. In the existing technology, the asphalt liquid produced contains a large amount of fixed impurities. Therefore, industrially produced asphalt usually needs to be removed using a filter mesh. When filtering asphalt exhaust gas, water filtration or heating dissolution method are also used, but these filtration methods cannot effectively filter out harmful substances in asphalt.

[0003] There are also a large number of filtering devices in the current equipment. When filtering, most of them are performed by placing the matrix asphalt raw material on the filter plate, and then filtering by moving the asphalt raw material on the filter plate. However, the matrix asphalt raw material is easy to clog the filter plate during the filtration process, resulting in poor filtration effect. In particular, most asphalts need to maintain a constant temperature. During the screening process, larger asphalt particles will clog the sieve holes of the screen, which is inconvenient to clean, thereby affecting the screening effect of the asphalt. In addition, the screen is usually difficult to clean, so a device is needed to solve the above problems. Summary of the Invention

[0004] The object of the present invention is to provide an asphalt filtering device with an automatic screen cleaning function to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: the filtering device includes a feed barrel and a treatment barrel, the feed barrel is connected to the treatment barrel, a sewage storage barrel is provided at the bottom of the treatment barrel, the treatment barrel is connected to the sewage storage barrel, a feeding motor is provided in the treatment barrel, a dispersion screw is provided on the output end of the feeding motor, a dispersion screw is sleeved with a dispersion disk, a filter screen is rotatably connected in the treatment barrel, a backwash component is installed on the treatment barrel, the backwash component is slidably connected to the filter screen, a dispersion frame is provided on the dispersion disk, a diffusion frame is provided on the dispersion frame, the diffusion frame is slidably connected to the dispersion frame, a heater is provided in the treatment barrel, a plurality of heat transfer grooves are provided on the treatment barrel, a heating net is provided on the heater, the heating net is embedded in the heat transfer groove, a guide groove is provided on the treatment barrel, and the guide groove is connected to the sewage storage barrel. The barrels are connected. During the asphalt filtration process, the melted asphalt is first fed into the feed barrel, the feed barrel collects the asphalt and guides the asphalt into the processing barrel, and then the discharging motor drives the dispersion screw to rotate. The dispersion screw can squeeze the asphalt and spread the asphalt on the dispersion disk. Then the dispersed asphalt will pass through the filter screen, and the filter screen will produce a rotating motion under the squeezing of the asphalt. After passing through the filter screen, the asphalt will be discharged out of the equipment through the discharge port. At the same time, some subsequent coagulants will enter the sewage storage barrel through the guide groove. During the dispersion filtration process, the heater continues to work, and the heater will heat the heating network, and the heating network will transfer heat to the heat transfer tank, thereby ensuring the melted state of the asphalt.

[0006] A feed port is provided on the feed barrel, a surging sleeve is provided in the feed barrel, a plurality of surging rings are provided on the surging sleeve, a loading motor is provided on the feed barrel, a toggle rod is provided on the output shaft of the loading motor, the toggle rod is rotatably connected in the feed barrel, a plurality of jumping cams are installed on the toggle rod, each jumping cam is in sliding contact with the corresponding surging ring, a reset spring is fixedly connected to the surging ring, and each reset spring is respectively against the feed barrel. During the feeding process, the loading motor will drive the toggle rod to rotate, and the toggle rod will drive the jumping cam to rotate, and the jumping cam will drive the surging ring to slide, and the surging ring drives the surging sleeve to surge, and the inner surface of the surging sleeve moves continuously, and then the asphalt is discharged into the processing barrel. After the surging ring slides, the reset spring will squeeze the surging ring to reset it in time.

[0007] A docking port is provided on the processing cylinder, which is connected to the feed barrel. A gradient detection frame is installed on the processing cylinder, and a plurality of temperature-sensing resistors are provided on the gradient detection frame. Each temperature-sensing resistor is electrically connected to the heater through a wire. A lifting plate is provided at the bottom of the processing cylinder, and the lifting plate is slidingly connected to the processing cylinder. During the filtration process, it is necessary to ensure the temperature inside the processing cylinder to avoid asphalt solidification affecting subsequent filtration operations. When the asphalt enters the processing cylinder, the temperature-sensing resistor on the internal gradient detection frame will sense the temperature and transmit the temperature information to the heater. By sensing the attenuation degree, the current asphalt concentration and feed speed can be fully known, and the temperature adjustment of the heater at various parts can be adjusted accordingly.

[0008] A lifting cylinder is provided in the processing cylinder, and a lifting hydraulic cylinder is provided in the lifting cylinder. A lifting plate is provided on the output rod of the lifting hydraulic cylinder, and a blocking edge is provided at the bottom of the lifting plate. A debris discharge groove is provided on the lifting cylinder, and the debris discharge groove is connected with the guide groove. A debris discharge hole is provided in the lifting plate, and a blocking shrapnel is provided in the debris discharge hole. The blocking shrapnel is rotatably connected to the debris discharge hole through a spring shaft. When the asphalt filtration is completed, the internal lifting hydraulic cylinder will drive the lifting plate to lift and lower, thereby passing through a large amount of asphalt. Through the blocking edge, some unmelted particles and some fine sand and gravel can be blocked and sent into the debris discharge hole and discharged into the sewage storage box. The blocking shrapnel can block the melted asphalt. The blocking shrapnel requires a large pressure to be squeezed open, and its model can be selected according to the specific amount of asphalt.

[0009] The filter screen includes a rotating rod and multiple passing pieces, each of which is rotationally connected to the rotating rod, and the rotating rod is rotationally connected to the backwash assembly. The angle between the rotating rod and the axis of the treatment cylinder is 10°≤α≤20°, and the passing piece is slidingly connected to the backwash assembly. When the filter screen rotates, the asphalt will drive the passing piece to rotate under the angle restriction, thereby driving the rotating rod to rotate, and the squeezed passing piece will enter the backwash assembly, and the backwash assembly will impact the passing piece, thereby ensuring the optimal filtration efficiency of the passing piece.

[0010] A processing tank is provided on the processing cylinder, and an inclined frame is provided on the processing tank. The inclined frame is a wavy platform. Each through piece is in sliding contact with the inclined frame respectively. An impact cylinder is provided on the processing cylinder. An impact spring and an impact seat are provided in the impact cylinder. The two ends of the impact spring are respectively against the impact seat and the impact cylinder. An impact wheel is rotatably connected to the impact seat. When the through piece enters the rotating processing cylinder, it will contact the inclined frame, so that the through piece will be dislocated. In this way, the through piece can be cleaned at multiple angles. In order to prevent the through piece from being stuck to the asphalt, the impact seat on the impact cylinder will impact the through piece, so that the through piece will be fully separated.

[0011] The backwash assembly includes a flushing box, a rotating sleeve is provided in the flushing box, a rotating rod is rotatably connected to the rotating sleeve, a trigger switch is provided in the rotating sleeve, a trigger cam is provided on the rotating rod, the trigger cam is in intermittent sliding contact with the trigger switch, the tilting frame is located in the flushing box, a flushing pipe and a flushing pump are provided in the flushing box, the flushing pipe is connected to the output end of the flushing pump, a signal collection panel is provided on the flushing pump, the signal collection panel is inductively connected to the trigger switch, and the trigger switch is electrically connected to the electric heater. When the rotating rod rotates, it will drive the trigger cam to rotate, and the trigger cam contacts the trigger switch in the rotating sleeve, thereby transmitting a current change signal. According to the frequency of the current signal change, the current melting state of the asphalt and the amount of impurities in the asphalt can be obtained, and the current signal is transmitted to the heater and the flushing pump respectively. The flushing pump processes the current change signal through the signal collection panel, and the flushing pump will pump high-pressure gas into the flushing pipe. The high-pressure gas hits the through-piece, so that the asphalt adhered to the through-piece can be fallen off. Under the action of the flushing box, the gas will flow back, thereby achieving multi-angle flushing.

[0012] A pressurized clip group is provided in the flushing pipe, and an extrusion screw is rotatably connected to the flushing pipe. The extrusion screw and the pressurized clip group are set correspondingly. An adjustment door is provided on the flushing box, and a wiping roller is also rotatably connected to the flushing box. The wiping roller is in sliding contact with the processing tank. A steel brush is provided on the wiping roller. When flushing, the flushing area can be adjusted by adjusting the extrusion screw, and the flushing force can be adjusted indirectly. The adjustment operation can be completed manually or by adding a motor. The impurities flushed down will pass through the wiping roller, which blocks the through-piece to prevent heat leakage. At the same time, it can also make the impurities on the through-piece present an irregular surface, making it easier to clean.

[0013] There are multiple separation bins in the sewage storage barrel, and each separation bin is slidably connected with a classification screen plate, and each classification screen plate is provided with a movable handle. A reflux component is also provided at the bottom of the sewage storage barrel, and the reflux component is connected to the flushing pump. When impurities, debris and other substances enter the separation bin, they will fall on the classification screen plate, and the classification screen plate will intercept the substances therein. The sewage discharge operation can be completed by disassembling the classification screen plate. In order to avoid heat waste, the reflux component will transfer the remaining heat after filtration back to the flushing box to reduce energy waste.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention adopts a structural component with dispersed feeding. Through the surging structure, it reduces the adhesion of asphalt while fully ensuring the fluidity of asphalt, so that the impurities stuck together inside can be fully dispersed. At the same time, the application also adopts a double filtration method to disperse the asphalt and screen out larger impurities to avoid the substances therein causing damage to the internal structure. The application also adopts a structural component with temperature feedback. It uses the viscosity of asphalt and the characteristics of temperature attenuation to fully adjust the heating temperature to ensure the optimal flow of asphalt, while also reducing the impact of excessive heating on the activity of asphalt. At the same time, the backwash component cooperates with the multi-plate filter screen plate component to ensure cleaning efficiency while increasing the cleaning angle. The bottom end of the sheet can be fully cleaned by using the reverse airflow. The equipment also adopts a fishing-type structural component to remove the denatured impurities in the asphalt again, increasing the fluidity of the asphalt while making the discharged asphalt cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the main structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the treatment cylinder of the present invention; Figure 4 for Figure 3 The structural diagram of the partially enlarged A in the middle; Figure 5 It is a schematic diagram of the transverse cross-sectional structure of the present invention; Figure 6 for Figure 5 The structural diagram of C is partially enlarged in the middle; Figure 7 for Figure 5 The structural diagram of the partial enlargement of B in the middle; Figure 8 This is a schematic diagram of the internal structure of the flushing box of the present invention; Figure 9 It is a schematic diagram of the internal structure of the flushing pipe of the present invention.

[0016] In the figure: 1. Feed barrel; 101. Feed port; 102. Surge sleeve; 103. Surge ring; 104. Loading motor; 105. Toggle lever; 106. Jump cam; 107. Reset spring; 2. Processing barrel; 201. Docking port; 202. Gradient detection frame; 203. Temperature sensing resistor; 204. Lifting plate; 205. Lifting barrel; 206. Lifting hydraulic cylinder; 208. Blocking edge; 209. Discharge trough; 210. Discharge hole; 211. Blocking spring; 212. Processing trough; 213. Tilt frame; 214. Impact barrel; 215. Impact spring; 216. Impact seat; 217. Impact wheel; 3. Sewage storage barrel; 301. Separation Leaving the warehouse; 302, classification screen plate; 303, moving handle; 304, reflux assembly; 4, unloading motor; 5, dispersion screw rod; 6, dispersion disk; 7, filter screen; 701, rotating rod; 702, passing plate; 703, trigger cam; 8, backwash assembly; 801, flushing box; 802, rotating sleeve; 803, trigger switch; 804, flushing pipe; 805, flushing pump; 806, signal collection panel; 807, pressure clip group; 808, extrusion screw; 809, adjustment door; 810, wiping roller; 9, dispersion frame; 10, diffusion rack; 11, heater; 12, heat transfer groove; 13, heating net; 14, guide groove. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Example: Figures 1-9As shown, the present invention provides a technical solution. The filtering device includes a feed barrel 1 and a treatment barrel 2. The feed barrel 1 is connected to the treatment barrel 2. A sewage storage barrel 3 is provided at the bottom of the treatment barrel 2. The treatment barrel 2 is connected to the sewage storage barrel. A feeding motor 4 is provided in the treatment barrel 2. A dispersion screw 5 is provided on the output end of the feeding motor 4. The dispersion screw 5 is sleeved with a dispersion disk 6. A filter screen 7 is rotatably connected in the treatment barrel 2. A backwash component 8 is installed on the treatment barrel 2. The backwash component 8 is slidably connected to the filter screen 7. A dispersion frame 9 is provided on the dispersion disk 6. A diffusion frame 10 is provided on the dispersion frame 9. The diffusion frame 10 is slidably connected to the dispersion frame 9. A heater 11 is provided in the treatment barrel 2. A plurality of heat transfer grooves 12 are provided on the treatment barrel 2. A heating net 13 is provided on the heater 11. The heating net 13 is embedded in the heat transfer groove 12. A guide groove 14 is provided on the treatment barrel 2 , the guide groove is connected to the sewage storage barrel 3 14. During the asphalt filtration process, the melted asphalt is first fed into the feed barrel 1, the feed barrel 1 collects the asphalt and guides the asphalt into the processing barrel 2, and then the unloading motor 4 drives the dispersion screw 5 to rotate. The dispersion screw 5 can squeeze the asphalt and spread the asphalt on the dispersion disk 6. Then the dispersed asphalt will pass through the filter screen 7, and the filter screen 7 will produce a rotating motion under the squeezing of the asphalt. After passing through the filter screen 7, the asphalt will be discharged out of the equipment through the discharge port. At the same time, some subsequent coagulants will pass through the guide groove 14 into the sewage storage barrel 3. During the dispersion filtration process, the heater 11 continues to work, and the heater 11 will heat the heating network 13. The heating network 13 transfers heat to the heat transfer tank 12, thereby ensuring the melting state of the asphalt.

[0019] The feed barrel 1 is provided with a feed port 101, a surge sleeve 102 is provided in the feed barrel 1, a plurality of surge rings 103 are sleeved on the surge sleeve 102, a loading motor 104 is provided on the feed barrel 1, a toggle rod 105 is provided on the output shaft of the loading motor 104, the toggle rod 105 is rotatably connected to the feed barrel 1, a plurality of jumping cams 106 are installed on the toggle rod 105, each jumping cam 106 is in sliding contact with the corresponding surge ring 103, a reset spring 107 is fixedly connected to the surge ring 103, and each reset spring 107 is fixedly connected to the feed barrel 1 7 are respectively against the feed barrel 1. During the feeding process, the loading motor 104 will drive the toggle rod 105 to rotate, and the toggle rod 105 will drive the jumping cam 106 to rotate, and the jumping cam 106 will drive the surging ring 103 to slide, and the surging ring 103 drives the surging sleeve 102 to surge, and the inner surface of the surging sleeve 102 moves continuously, and then the asphalt is discharged into the processing barrel 2. After the surging ring 103 slides, the reset spring 107 will squeeze the surging ring 103 to reset it in time.

[0020] A docking port 201 is provided on the processing cylinder 2, and the docking port 201 is connected to the feed barrel 1. A gradient detection frame 202 is installed on the processing cylinder 2, and a plurality of temperature-sensing resistors 203 are provided on the gradient detection frame 202. Each temperature-sensing resistor 203 is electrically connected to the heater 11 through a wire. A lifting plate 204 is provided at the bottom of the processing cylinder 2, and the lifting plate 204 is slidingly connected to the processing cylinder 2. During the filtration process, it is necessary to ensure the temperature inside the processing cylinder 2 to avoid asphalt solidification affecting subsequent filtration operations. When the asphalt enters the processing cylinder 2, the temperature-sensing resistor 203 on the internal gradient detection frame 202 will sense the temperature and transmit the temperature information to the heater 11. By sensing the attenuation degree, the current asphalt concentration and feeding speed can be fully known, and the temperature adjustment of the heater 11 at various parts can be adjusted.

[0021] The processing cylinder 2 is provided with a lifting cylinder 205, and a lifting hydraulic cylinder 206 is provided in the lifting cylinder 205. The output rod of the lifting hydraulic cylinder 206 is provided with a lifting plate 204. The bottom of the lifting plate 204 is provided with a blocking edge 208. The lifting cylinder 205 is provided with a debris discharge groove 209, and the debris discharge groove 209 is connected to the guide groove 14. The lifting plate 204 is provided with a debris discharge hole 210, and the debris discharge hole 210 is provided with a blocking spring 211. The blocking spring 211 rotates with the debris discharge hole 210 through a spring shaft. When the asphalt filtration is completed, the internal lifting hydraulic cylinder 206 will drive the lifting plate 204 to move up and down, thereby passing through a large amount of asphalt. Through the blocking edge 208, some unmelted particles and some fine sand and gravel can be blocked and sent to the discharge hole 210 and discharged into the sewage storage box. The blocking spring piece 211 can block the melted asphalt. The blocking spring piece 211 requires a large pressure to be squeezed open, and its model can be selected according to the specific amount of asphalt.

[0022] The filter screen 7 includes a rotating rod 701 and multiple passing pieces 702. Each passing piece 702 is rotationally connected to the rotating rod 701. The rotating rod 701 is rotationally connected to the backwash component 8. The angle between the rotating rod 701 and the axis of the treatment cylinder 2 is 10°≤α≤20°. The passing piece 702 is slidingly connected to the backwash component 8. When the filter screen 7 rotates, the asphalt will drive the passing piece 702 to rotate under the angle restriction, thereby driving the rotating rod 701 to rotate, and the squeezed passing piece 702 will enter the backwash component 8. The backwash component 8 impacts the passing piece 702, thereby ensuring the optimal filtration efficiency of the passing piece 702.

[0023] A processing tank 212 is provided on the processing cylinder 2, and an inclined frame 213 is provided on the processing tank 212. The inclined frame 213 is a wavy platform. Each through piece 702 is in sliding contact with the inclined frame 213 respectively. An impact cylinder 214 is provided on the processing cylinder 2. An impact spring 215 and an impact seat 216 are provided in the impact cylinder 214. The two ends of the impact spring 215 are respectively against the impact seat 216 and the impact cylinder 214. The impact seat 216 is rotatably connected with an impact wheel 217. When the through piece 702 enters the rotating processing cylinder 2, it will contact the inclined frame 213, so that the through piece 702 will be dislocated, so that the through piece 702 can be cleaned at multiple angles. In order to prevent the through piece 702 from being stuck by asphalt, the impact seat 216 on the impact cylinder 214 will impact the through piece 702, so that the through piece 702 will be fully separated.

[0024] The backwash assembly 8 includes a flushing box 801, a rotating sleeve 802 is provided in the flushing box 801, a rotating rod 701 is rotatably connected to the rotating sleeve 802, a trigger switch 803 is provided in the rotating sleeve 802, a trigger cam 703 is provided on the rotating rod 701, the trigger cam 703 is in intermittent sliding contact with the trigger switch 803, the tilting frame 213 is located in the flushing box 801, a flushing pipe 804 and a flushing pump 805 are provided in the flushing box 801, the flushing pipe 804 is connected to the output end of the flushing pump 805, a signal collection panel 806 is provided on the flushing pump 805, the signal collection panel 806 is inductively connected to the trigger switch 803, the trigger switch 803 is electrically connected to the electric heater 11, and the rotating rod 701 is rotated. During the process, the trigger cam 703 will be driven to rotate, and the trigger cam 703 will contact the trigger switch 803 in the rotating sleeve 802, thereby transmitting a current change signal. According to the frequency of the current signal change, both the current melting state of the asphalt and the amount of impurities in the asphalt can be known, and the current signal will be transmitted to the heater 11 and the flushing pump 805 respectively. The flushing pump 805 processes the current change signal through the signal collection panel 806, and the flushing pump 805 will pump high-pressure gas into the flushing pipe 804. The high-pressure gas hits the through piece 702, so that the asphalt adhered to the through piece 702 can fall off, and under the action of the flushing box 801, the gas will flow back, thereby realizing multi-angle flushing.

[0025] A pressurized clip group 807 is provided in the flushing tube 804, and an extrusion screw 808 is rotatably connected to the flushing tube 804. The extrusion screw 808 is arranged corresponding to the pressurized clip group 807. An adjustment door 809 is provided on the flushing box 801. A wiping roller 810 is also rotatably connected to the flushing box 801. The wiping roller 810 is in sliding contact with the processing tank 212. A steel brush is provided on the wiping roller 810. When flushing, the flushing area can be adjusted by adjusting the extrusion screw 808, and the flushing force can be adjusted indirectly. The adjustment operation can be completed manually or by installing a motor. The impurities flushed down will pass through the wiping roller 810, and the wiping roller 810 blocks the through sheet 702 to prevent heat leakage. At the same time, it can also make the impurities on the through sheet 702 present an irregular surface, making it easier to clean.

[0026] A plurality of separation bins 301 are provided in the sewage storage barrel 3, and a classification sieve plate 302 is slidably connected to each separation bin 301, and a movable handle 303 is provided on each classification sieve plate 302. A reflux component 304 is also provided at the bottom of the sewage storage barrel, and the reflux component 304 is connected to the flushing pump 805. When impurities, debris and other substances enter the separation bin 301, they will fall on the classification sieve plate 302, and the classification sieve plate 302 will intercept the substances therein. The sewage discharge operation can be completed by disassembling the classification sieve plate 302. In order to avoid heat waste, the reflux component 304 will transfer the remaining heat after filtration back to the flushing box 801 to reduce energy waste.

[0027] Working principle: The melted asphalt is fed into the feed barrel 1, the feed barrel 1 collects the asphalt, the loading motor 104 will drive the toggle rod 105 to rotate, and the jumping cam 106 will drive the surging ring 103 to slide, the surging ring 103 drives the surging sleeve 102 to surge, and guides the asphalt into the processing barrel 2, then the unloading motor 4 drives the dispersion screw 5 to rotate, the dispersion screw 5 can squeeze the asphalt and spread the asphalt on the dispersion disk 6, then the dispersed asphalt will pass through the filter screen 7, the asphalt drives the passing piece 702 to rotate by its own weight, thereby driving the rotating rod 701 to rotate, and the squeezed passing piece 702 will enter the backwash component 8, and the rotating rod 701 will drive the trigger cam 703 to rotate during the rotation process, and the trigger cam 703 and the rotating sleeve 802 will rotate. The trigger switch 803 is contacted, and the current signal is transmitted to the heater 11 and the flushing pump 805. The flushing pump 805 processes the current change signal through the signal collection panel 806, and the flushing pump 805 will pump high-pressure gas into the flushing pipe 804. The asphalt will be discharged out of the equipment through the discharge port. At the same time, some subsequent coagulants will enter the sewage storage barrel 3 through the guide groove 14. In the process of dispersed filtration, the asphalt enters the treatment cylinder 2, and the temperature-sensing resistor 203 on the internal gradient detection frame 202 will sense the temperature and transmit the temperature information to the heater 11, and adjust the temperature of the heater 11 at various parts to ensure the melting state of the asphalt. Impurities and other substances will enter the storage barrel 3, and the classification screen plate 302 will intercept the substances therein. The sewage discharge operation can be completed by disassembling the classification screen plate 302.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An asphalt filtering device with automatic screen cleaning function, characterized by: The filtering device comprises a feed barrel (1) and a treatment barrel (2), wherein the feed barrel (1) is connected to the treatment barrel (2), a dirt storage barrel (3) is provided at the bottom end of the treatment barrel (2), the treatment barrel (2) is connected to the dirt storage barrel, a feed motor (4) is provided in the treatment barrel (2), a dispersion screw (5) is provided on the output end of the feed motor (4), the dispersion screw (5) is sleeved with a dispersion disk (6), a filter screen (7) is rotatably connected in the treatment barrel (2), a backwash component (8) is installed on the treatment barrel (2), and the backwash component (8) is connected to the filter. The screen (7) is slidably connected, a dispersion frame (9) is provided on the dispersion disk (6), a diffusion frame (10) is provided on the dispersion frame (9), and the diffusion frame (10) is slidably connected to the dispersion frame (9). A heater (11) is provided in the treatment cylinder (2), and a plurality of heat transfer grooves (12) are provided on the treatment cylinder (2). A heating net (13) is provided on the heater (11), and the heating net (13) is embedded in the heat transfer groove (12). A guide groove (14) is provided on the treatment cylinder (2), and the guide groove (14) is communicated with the sewage storage tank (3).

2. The asphalt filtering device with automatic screen cleaning function according to claim 1, characterized in that: The feed barrel (1) is provided with a feed port (101), a surge sleeve (102) is provided in the feed barrel (1), a plurality of surge rings (103) are sleeved on the surge sleeve (102), a loading motor (104) is provided on the feed barrel (1), a toggle rod (105) is provided on the output shaft of the loading motor (104), the toggle rod (105) is rotatably connected in the feed barrel (1), a plurality of jumping cams (106) are installed on the toggle rod (105), each of the jumping cams (106) is in sliding contact with the corresponding surge ring (103), a reset spring piece (107) is fixedly connected to the surge ring (103), and each of the reset spring pieces (107) is respectively against the feed barrel (1).

3. The asphalt filtering device with automatic screen cleaning function according to claim 1, characterized in that: The processing cylinder (2) is provided with a docking port (201), the docking port (201) is connected to the feed barrel (1), a gradient detection frame (202) is installed on the processing cylinder (2), a plurality of temperature-sensitive resistors (203) are provided on the gradient detection frame (202), each temperature-sensitive resistor (203) is electrically connected to the heater (11) through a wire, and a lifting plate (204) is provided at the bottom end of the processing cylinder (2), and the lifting plate (204) is slidably connected to the processing cylinder (2).

4. The asphalt filtering device with automatic screen cleaning function according to claim 3, characterized in that: A lifting cylinder (205) is provided in the processing cylinder (2), a lifting hydraulic cylinder (206) is provided in the lifting cylinder (205), a lifting disk (204) is provided on the output rod of the lifting hydraulic cylinder (206), a blocking edge (208) is provided at the bottom end of the lifting disk (204), a debris discharge groove (209) is provided on the lifting cylinder (205), the debris discharge groove (209) is communicated with the guide groove (14), a debris discharge hole (210) is provided in the lifting disk (204), a blocking spring (211) is provided in the debris discharge hole (210), and the blocking spring (211) is rotatably connected to the debris discharge hole (210) through a spring shaft.

5. The asphalt filtering device with automatic screen cleaning function according to claim 4, characterized in that: The filter screen (7) comprises a rotating rod (701) and a plurality of passing pieces (702), each of the passing pieces (702) being rotationally connected to the rotating rod (701), the rotating rod (701) being rotationally connected to the backwash assembly (8), the rotating rod (701) and the axis of the treatment cylinder (2) being at an angle of 10°≤α≤20°, and the passing pieces (702) being slidingly connected to the backwash assembly (8).

6. The asphalt filtering device with automatic screen cleaning function according to claim 5, characterized in that: The processing cylinder (2) is provided with a processing tank (212), and the processing tank (212) is provided with an inclined frame (213), and the inclined frame (213) is a wave-shaped platform. Each of the passing pieces (702) is in sliding contact with the inclined frame (213). The processing cylinder (2) is provided with an impact cylinder (214), and an impact spring (215) and an impact seat (216) are provided in the impact cylinder (214). The two ends of the impact spring (215) respectively abut against the impact seat (216) and the impact cylinder (214), and the impact seat (216) is rotatably connected to an impact wheel (217).

7. The asphalt filtering device with automatic screen cleaning function according to claim 6, characterized in that: The backwash assembly (8) includes a flushing box (801), a rotating sleeve (802) is provided in the flushing box (801), the rotating rod (701) is rotatably connected to the rotating sleeve (802), a trigger switch (803) is provided in the rotating sleeve (802), a trigger cam (703) is provided on the rotating rod (701), the trigger cam (703) and the trigger switch (803) are in intermittent sliding contact, the tilting frame (213) is located in the flushing box (801), a flushing pipe (804) and a flushing pump (805) are provided in the flushing box (801), the flushing pipe (804) is communicated with the output end of the flushing pump (805), a signal collection panel (806) is provided on the flushing pump (805), the signal collection panel (806) is inductively connected to the trigger switch (803), and the trigger switch (803) is electrically connected to the electric heater (11).

8. The asphalt filtering device with automatic screen cleaning function according to claim 7, characterized in that: A pressurizing clip group (807) is provided in the flushing pipe (804), and an extrusion screw (808) is rotatably connected to the flushing pipe (804). The extrusion screw (808) is arranged corresponding to the pressurizing clip group (807). An adjustment door (809) is provided on the flushing box (801). A wiping roller (810) is also rotatably connected to the flushing box (801). The wiping roller (810) is in sliding contact with the processing tank (212), and a steel brush is provided on the wiping roller (810).

9. The asphalt filtering device with automatic screen cleaning function according to claim 7, characterized in that: The waste storage barrel (3) is provided with a plurality of separation chambers (301), each of the separation chambers (301) is slidably connected to a classification screen plate (302), and each of the classification screen plates (302) is provided with a movable handle (303). A reflux component is also provided at the bottom end of the waste storage barrel (3), and the reflux component is connected to a flushing pump (805).

Images