Air inducing device for recycled asphalt production

Abstract

The utility model relates to an air inducing device for recycled asphalt production, which comprises an air inducing pipeline, a fan is arranged in the air inducing pipeline, the fan comprises a rotating shaft and a plurality of fan blades, the plurality of fan blades are circumferentially mounted on the side wall of the rotating shaft at equal intervals, and a plurality of connecting pipes are circumferentially arranged on the outer wall of the air inducing pipeline at intervals; a connecting rod is arranged at the end, away from the air inducing pipeline, of the connecting pipe, one end of the connecting rod penetrates into the connecting pipe and is rotationally connected with the connecting pipe, a connecting plate is arranged at the end, away from the connecting pipe, of the connecting rod, and a connecting groove is formed in the side face of the end, away from the connecting rod, of the connecting plate in the length direction of the connecting plate; a plurality of connecting blocks are arranged on the inner wall of the connecting ring, correspond to the connecting plates one to one and are located in the connecting grooves. And the fan blades are vibrated to vibrate off asphalt attached to the fan blades, so that the fan blades are cleaned.

Description

Technical Field

[0001] The present application relates to the technical field of asphalt fume treatment, and in particular to an induced draft device for use in the production of recycled asphalt. Background Art

[0002] In the production process of modified asphalt, a large amount of asphalt fume is generated. This fume not only has an unpleasant smell, but also contains a large amount of dust, particulate impurities, etc., and contains a large number of compounds that are harmful to the human body, such as acridine, phenol, pyridine and benzopyrene, most of which have carcinogenic risks. If the asphalt fume is directly discharged into the atmosphere, it will not only deteriorate the working environment, but also cause pollution to the surrounding atmosphere, seriously affecting the health of workers.

[0003] The newly generated flue gas has high heat and contains some asphalt. When the asphalt flue gas is transported through the induced draft fan for purification, the asphalt in the flue gas is easily attached to the fan of the induced draft fan. After the temperature drops, the asphalt attached to the fan solidifies, affecting the operation of the induced draft fan. Utility Model Content

[0004] In order to facilitate the cleaning of asphalt attached to the fan, the present application provides an air induced draft device for the production of recycled asphalt.

[0005] The present application provides an air induction device for the production of recycled asphalt, which adopts the following technical solution:

[0006] A draft device for producing recycled asphalt comprises an draft duct, wherein a fan is arranged in the draft duct, wherein the fan comprises a rotating shaft and a plurality of fan blades, wherein the plurality of fan blades are circumferentially equidistantly mounted on the side wall of the rotating shaft, wherein a plurality of connecting pipes are circumferentially spaced apart on the outer wall of the draft duct, wherein a connecting rod is arranged at one end of the connecting pipe away from the draft duct, wherein one end of the connecting rod penetrates into the connecting pipe and is rotatably connected to the connecting pipe, wherein a connecting plate is arranged at one end of the connecting rod away from the connecting pipe, wherein a connecting groove is formed on the side surface of the connecting plate away from the end of the connecting rod along the length direction of the connecting plate, wherein a connecting ring is arranged on the outer sleeve of the draft duct, wherein a plurality of connecting blocks are arranged on the inner wall of the connecting ring, wherein the connecting blocks correspond one to one with the connecting plates, and wherein the connecting blocks are located in the connecting groove.

[0007] By adopting the above technical scheme, the shaft is rotated, the fan blades rotate to transport the smoke through the induced draft duct, the connecting ring is rotated back and forth, the connecting pipe moves along the connecting groove, driving the connecting plate and the connecting rod to rotate, and the induced draft duct and the fan in the induced draft duct are driven to vibrate through the connecting pipe. The fan blades are vibrated to vibrate the asphalt attached to the fan blades, thereby reducing the possibility of asphalt on the fan blades and cleaning the fan blades.

[0008] Optionally, a driving arm is provided on the outer wall of the connecting ring, and an adjusting arm is connected to one end of the driving arm away from the connecting ring. One end of the adjusting arm is hinged to the driving arm, and a rotating plate is provided at the other end of the adjusting arm. One end of the rotating plate is hinged to the adjusting arm, and a driving motor is provided at the other end of the rotating plate. The output shaft of the driving motor is fixedly connected to the side wall of the rotating plate at one end away from the adjusting arm.

[0009] By adopting the above technical solution, by starting the driving motor, the output shaft of the driving motor drives the rotating plate to swing back and forth, drives the adjusting arm and the driving arm to swing back and forth, and thus drives the connecting ring to rotate back and forth.

[0010] Optionally, the adjusting arm includes a first adjusting rod and a second adjusting rod, one end of the first adjusting rod is hinged to the driving arm, one end of the second adjusting rod is hinged to the rotating plate, a screw is provided at one end of the first adjusting rod near the second adjusting arm, and a thread groove corresponding to the screw is provided at one end of the second adjusting arm near the first adjusting rod, the screw is located in the thread groove and is threadedly connected to the second adjusting arm.

[0011] By adopting the above technical solution, the screw on the first adjusting rod is rotated according to the distance between the driving motor and the connecting ring, so as to adjust the overall length of the adjusting arm.

[0012] Optionally, a guide plate is provided on the outer wall of the air duct, a guide opening corresponding to the connecting ring is formed on the guide plate, and a guide rod passing through the guide opening is provided on the connecting ring.

[0013] By adopting the above technical solution, during the reciprocating rotation of the connecting ring, the guide rod moves back and forth in the guide opening, thereby improving the stability of the connecting ring during the rotation process.

[0014] Optionally, the outer wall of the air duct is provided with two stabilizing plates parallel to each other, the two stabilizing plates and the outer wall of the air duct form a stabilizing groove, and the connecting ring passes through the stabilizing groove and is located between the two stabilizing plates.

[0015] By adopting the above technical solution, the connecting ring is located between the two stabilizing plates, thereby improving the stability of the reciprocating rotation of the connecting plates.

[0016] Optionally, a discharge port located directly below the fan is formed on the lower end surface of the induced air duct, a discharge channel connected to the discharge port is formed on the outer wall of the induced air duct, and a shielding component for shielding the discharge port is provided on the induced air duct.

[0017] By adopting the above technical solution, the asphalt dropped from the fan is taken out from the induced draft duct through the discharge port and the discharge channel. During the smoke conveying process, the shielding component shields the discharge port to prevent the smoke from flowing out of the discharge port.

[0018] Optionally, the shielding assembly includes a shielding plate, an elastic spring and a pulling handle, the air duct is provided with a plate groove connected with the discharge port along the length direction, the shielding plate is located at the discharge port and one end of the shielding plate is located in the plate groove, the elastic spring is located in the plate groove, one end of the elastic spring is fixedly connected to the end of the shielding plate, and the other end of the elastic spring is fixedly connected to the inner wall of the plate groove, when the elastic spring is in a natural state, the shielding plate blocks the discharge port, and the outer wall of the air duct is provided with a through opening connected with the plate groove along the length direction, the pulling handle is fixedly connected to the side of the shielding plate close to the through opening, and the pulling handle passes through the through opening and is located outside the air duct.

[0019] By adopting the above technical solution, the pulling handle is moved along the passage away from the discharge port, so that the shielding plate is moved into the plate groove, the elastic spring is compressed, the discharge port is opened, and the asphalt on the fan blades is vibrated off and flows out from the discharge port and the discharge channel. After the fan blades are cleaned, the pulling handle is released, and the compressed elastic spring pushes the shielding plate to move toward the discharge port.

[0020] Optionally, the outer wall of the air duct is provided with a collar adjacent to a side of the passage opening away from the discharge opening, and the collar corresponds to the pulling handle.

[0021] By adopting the above technical solution, when the discharge port is opened, the collar is put on the handle and the position of the shielding plate is limited, thereby improving the stability of the shielding plate in the plate groove and keeping the discharge port open.

[0022] Optionally, a protection tube is provided on the inner wall of the plate slot along the moving direction of the shielding plate, and a protection rod corresponding to the protection tube is provided on the side of the shielding plate close to the plate slot, and the protection rod penetrates into the protection tube and is slidably connected to the protection tube.

[0023] By adopting the above technical solution, when the shielding plate moves toward the plate slot, the protection rod moves along the length direction of the protection tube to protect the elastic spring and reduce the possibility of bending of the elastic spring.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] By rotating the shaft, the fan blades rotate to transport the smoke through the induced draft duct, the connecting ring rotates back and forth, the connecting pipe moves along the connecting groove, driving the connecting plate and the connecting rod to rotate, and the induced draft duct and the fan in the induced draft duct vibrate through the connecting pipe. The fan blades are vibrated to vibrate the asphalt attached to the fan blades, reducing the possibility of asphalt on the fan blades, and cleaning the fan blades.

[0026] During the reciprocating rotation of the connecting ring, the guide rod reciprocates in the guide opening, thereby improving the stability of the connecting ring during the rotation process;

[0027] Move the pulling handle along the passage away from the discharge port to move the shielding plate into the plate groove. The elastic spring is compressed, the discharge port is opened, and the asphalt on the fan blades is vibrated off to flow out from the discharge port and the discharge channel. After the fan blades are cleaned, release the pulling handle, and the compressed elastic spring pushes the shielding plate to move toward the discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The present invention is a schematic diagram of the overall structure of an induced draft device used in the production of recycled asphalt.

[0029] Figure 2 It is a schematic diagram for showing the structure of the fan in the embodiment of the present application.

[0030] Figure 3 yes Figure 1 Enlarged schematic diagram of part A.

[0031] Figure 4 It is a schematic diagram for showing the connection relationship between the guide rod and the guide plate in the embodiment of the present application.

[0032] Figure 5 It is a schematic diagram for showing the structure of the shielding component in the embodiment of the present application.

[0033] Description of reference numerals: 101, input channel; 102, output channel; 1, air duct; 11, connecting pipe; 12, connecting rod; 13, connecting plate; 131, connecting groove; 14, guide plate; 141, guide port; 15, stabilizing plate; 16, discharge port; 17, discharge channel; 18, plate groove; 19, through port; 2, fan; 21, rotating shaft; 211, first pulley; 212, connecting belt; 22, fan blade ; 23. Rotating motor; 231. Second pulley; 3. Connecting ring; 31. Connecting block; 32. Guide rod; 4. Driving arm; 5. Adjusting arm; 51. First adjusting rod; 511. Screw rod; 52. Second adjusting rod; 521. Threaded groove; 6. Rotating plate; 61. Driving motor; 7. Shielding assembly; 71. Shielding plate; 72. Elastic spring; 73. Pull handle; 8. Protective tube; 81. Protective rod; 9. Ring. DETAILED DESCRIPTION

[0034] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0035] The embodiment of the present application discloses an air induced draft device for producing recycled asphalt.

[0036] Reference Figure 1A draft device for recycled asphalt production includes an induced draft duct 1, one end of the induced draft duct 1 is connected to an input channel 101 for inputting flue gas, and the bottom end of the induced draft duct 1 away from the input channel 101 is connected to an output channel 102 for outputting flue gas. The flue gas is transported to a device for purifying flue gas through the input channel 101, the induced draft duct 1 and the output channel 102 in sequence.

[0037] Reference Figure 1 and Figure 2 A fan 2 is installed in the induced draft duct 1. The fan 2 includes a rotating shaft 21 and a plurality of fan blades 22. The plurality of fan blades 22 are circumferentially equidistantly installed on the side wall of the rotating shaft 21. A rotating motor 23 is installed outside the induced draft duct 1. The rotating shaft 21 is coaxially fixedly connected with a first pulley 211. The output shaft of the rotating motor 23 is coaxially fixedly connected with a second pulley 231. The second pulley 231 is connected to the first pulley 211 through a connecting belt 212. The rotating motor 23 is started, and the output shaft of the rotating motor 23 rotates to drive the first pulley 211 to rotate through the connecting belt 212, thereby causing the rotating motor 2 to rotate, and the fan 2 works. The fan blades 22 rotate to transport the smoke through the induced draft duct 1.

[0038] Reference Figure 3 A plurality of connecting pipes 11 are fixedly connected to the outer wall of the induced air duct 1 at circumferential intervals, a connecting rod 12 is installed at one end of the connecting pipe 11 away from the induced air duct 1, one end of the connecting rod 12 penetrates into the connecting pipe 11 and is rotatably connected to the connecting pipe 11, a connecting plate 13 is fixedly connected to one end of the connecting rod 12 away from the connecting pipe 11, a connecting groove 131 is opened on the side of the connecting plate 13 away from the end of the connecting rod 12 along the length direction of the connecting plate 13, a connecting ring 3 is arranged on the outer sleeve of the induced air duct 1, a plurality of connecting blocks 31 are fixedly connected to the inner wall of the connecting ring 3, the connecting blocks 31 correspond to the connecting plates 13 one by one, and the connecting blocks 31 are located in the connecting groove 131. The connecting ring 3 is rotated back and forth, first clockwise and then counterclockwise, and then cyclically rotated. The connecting tube 11 moves along the connecting groove 131, driving the connecting plate 13 and the connecting rod 12 to rotate. The air duct 1 and the fan 2 in the air duct 1 are driven to vibrate through the connecting tube 11. The fan blades 22 are vibrated to vibrate the asphalt attached to the fan blades 22, thereby reducing the possibility of asphalt on the fan blades 22 and cleaning the fan blades 22.

[0039] Reference Figure 1 and Figure 3A driving arm 4 is installed on the outer wall of the connecting ring 3, and an adjusting arm 5 is connected to one end of the driving arm 4 away from the connecting ring 3. One end of the adjusting arm 5 is hinged to the driving arm 4, and a rotating plate 6 is installed on the other end of the adjusting arm 5. One end of the rotating plate 6 is hinged to the adjusting arm 5, and a driving motor 61 is installed on the other end of the rotating plate 6. The output shaft of the driving motor 61 is fixedly connected to the side wall of the rotating plate 6 away from the adjusting arm 5. By starting the driving motor 61, the output shaft of the driving motor 61 rotates back and forth, driving the rotating plate 6 to swing back and forth, driving the adjusting arm 5 and the driving arm 4 to swing back and forth, thereby driving the connecting ring 3 to rotate back and forth.

[0040] Reference Figure 3 The adjusting arm 5 includes a first adjusting rod 51 and a second adjusting rod 52. One end of the first adjusting rod 51 is hinged to the driving arm 4, and one end of the second adjusting rod 52 is hinged to the rotating plate 6. A screw 511 is fixedly connected to one end of the first adjusting rod 51 close to the second adjusting arm 5. A thread groove 521 corresponding to the screw 511 is provided at one end of the second adjusting arm 5 close to the first adjusting rod 51. The screw 511 is located in the thread groove 521 and is threadedly connected to the second adjusting arm 5. According to the distance between the driving motor 61 and the connecting ring 3, the screw 511 on the first adjusting rod 51 is rotated to adjust the overall length of the adjusting arm 5.

[0041] Reference Figure 4 A guide plate 14 is fixedly installed on the outer wall of the air duct 1, and a guide opening 141 corresponding to the connecting ring 3 is opened on the guide plate 14. A guide rod 32 passing through the guide opening 141 is fixedly connected to the connecting ring 3. During the reciprocating rotation of the connecting ring 3, the guide rod 32 reciprocates in the guide opening 141, thereby improving the stability of the connecting ring 3 during the rotation process.

[0042] Reference Figure 3 Two parallel stabilizing plates 15 are fixedly installed on the outer wall of the induced air duct 1. The two stabilizing plates 15 and the outer wall of the induced air duct 1 form a stabilizing groove. The connecting ring 3 passes through the stabilizing groove and is located between the two stabilizing plates 15. The connecting ring 3 is located between the two stabilizing plates 15 to improve the stability of the reciprocating rotation of the connecting plate 13.

[0043] Reference Figure 5The lower end surface of the induced air duct 1 is provided with a discharge port 16 located directly below the fan 2, and the outer wall of the induced air duct 1 is provided with a discharge channel 17 connected with the discharge port 16. The asphalt dropped from the fan 2 is taken out from the induced air duct 1 through the discharge port 16 and the discharge channel 17. The induced air duct 1 is provided with a shielding component 7 for shielding the discharge port 16. The shielding component 7 includes a shielding plate 71, an elastic spring 72 and a pulling handle 73. The induced air duct 1 is provided with a plate groove 18 connected with the discharge port 16 along the length direction. The shielding plate 71 is located at the position of the discharge port 16 and one end of the shielding plate 71 is located in the plate groove 18. The elastic spring 72 is located in the plate groove 18. One end of the elastic spring 72 is fixedly connected to the end of the shielding plate 71, and the other end of the elastic spring 72 is fixedly connected to the inner wall of the plate groove 18. The elastic spring 72 is naturally The cam 73 is in the state of being closed by the spring 72. When the cam 73 is in the state of being closed by the spring 72, the shutter 71 is closed by the spring 73. When the cam 73 is in the state of being closed by the spring 72, the shutter 71 is closed by the spring 73. When the cam 73 is in the state of being closed by the spring 72, the shutter 71 is closed by the spring 72. When the cam 73 is in the state of being closed by the spring 72, the shutter 71 is closed by the spring 72.

[0044] Reference Figure 5 A protection tube 8 is installed on the inner wall of the plate slot 18 along the moving direction of the shielding plate 71. A protection rod 81 corresponding to the protection tube 8 is installed on the side of the shielding plate 71 close to the plate slot 18. The protection rod 81 penetrates into the protection tube 8 and is slidably connected with the protection tube 8. When the shielding plate 71 moves toward the plate slot 18, the protection rod 81 moves along the length direction of the protection tube 8 to protect the elastic spring 72 and reduce the possibility of the elastic spring 72 being bent.

[0045] Reference Figure 5 The outer wall of the induced air duct 1 is provided with a collar 9 adjacent to the side of the through opening 19 away from the discharge port 16, and the collar 9 corresponds to the pull handle 73. When the discharge port 16 is opened, the collar 9 is put on the pull handle 73 to limit the position of the shielding plate 71, thereby improving the stability of the shielding plate 71 in the plate groove 18 and keeping the discharge port 16 open.

[0046] The implementation principle of an induced draft device for recycled asphalt production in an embodiment of the present application is as follows: start the drive motor 61, and the output shaft of the drive motor 61 rotates back and forth, driving the rotating plate 6 to swing back and forth, driving the adjusting arm 5 and the driving arm 4 to swing back and forth, thereby driving the connecting ring 3 to rotate back and forth, and the connecting pipe 11 moves along the connecting groove 131, driving the connecting plate 13 and the connecting rod 12 to rotate, and the induced draft duct 1 and the fan 2 in the induced draft duct 1 are driven to vibrate through the connecting pipe 11, and the fan blades 22 are vibrated to vibrate the asphalt attached to the fan blades 22, thereby reducing the possibility of asphalt on the fan blades 22, and cleaning the fan blades 22. The asphalt dropped from the fan 2 is taken out of the induced draft duct 1 through the discharge port 16 and the discharge channel 17.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An air induced device for producing recycled asphalt, comprising an air induced duct (1), wherein a fan (2) is arranged in the air induced duct (1), and characterized in that: The fan (2) comprises a rotating shaft (21) and a plurality of fan blades (22), wherein the plurality of fan blades (22) are equidistantly mounted on the side wall of the rotating shaft (21), and the outer wall of the air duct (1) is provided with a plurality of connecting pipes (11) at circumferential intervals, and a connecting rod (12) is provided at one end of the connecting pipe (11) away from the air duct (1), and one end of the connecting rod (12) penetrates into the connecting pipe (11) and is rotatably connected to the connecting pipe (11), and the connecting rod (12) is provided with a plurality of connecting pipes (11) at circumferential intervals. 2) A connecting plate (13) is provided at one end away from the connecting pipe (11); a connecting groove (131) is provided on the side surface of one end of the connecting plate (13) away from the connecting rod (12) along the length direction of the connecting plate (13); a connecting ring (3) is provided on the outer sleeve of the air duct (1); a plurality of connecting blocks (31) are provided on the inner wall of the connecting ring (3); the connecting blocks (31) correspond to the connecting plates (13) one by one, and the connecting blocks (31) are located in the connecting groove (131).

2. The air induced device for regenerated asphalt production according to claim 1, characterized in that: The outer wall of the connecting ring (3) is provided with a driving arm (4); one end of the driving arm (4) away from the connecting ring (3) is connected to an adjusting arm (5); one end of the adjusting arm (5) is hinged to the driving arm (4); the other end of the adjusting arm (5) is provided with a rotating plate (6); one end of the rotating plate (6) is hinged to the adjusting arm (5); the other end of the rotating plate (6) is provided with a driving motor (61); the output shaft of the driving motor (61) is fixedly connected to the side wall of the rotating plate (6) away from the adjusting arm (5).

3. The air induction device for regenerated asphalt production according to claim 2, characterized in that: The adjusting arm (5) comprises a first adjusting rod (51) and a second adjusting rod (52); one end of the first adjusting rod (51) is hinged to the driving arm (4); one end of the second adjusting rod (52) is hinged to the rotating plate (6); a screw rod (511) is arranged at one end of the first adjusting rod (51) close to the second adjusting arm (5); a thread groove (521) corresponding to the screw rod (511) is arranged at one end of the second adjusting arm (55) close to the first adjusting rod (51); the screw rod (511) is located in the thread groove (521) and is threadedly connected to the second adjusting arm (5).

4. The air induced device for producing recycled asphalt according to claim 1, characterized in that: The outer wall of the air duct (1) is provided with a guide plate (14), the guide plate (14) is provided with a guide opening (141) corresponding to the connecting ring (3), and the connecting ring (3) is provided with a guide rod (32) passing through the guide opening (141).

5. The air induction device for regenerated asphalt production according to claim 1, characterized in that: The outer wall of the air duct (1) is provided with two stabilizing plates (15) which are parallel to each other. The two stabilizing plates (15) and the outer wall of the air duct (1) form a stabilizing groove. The connecting ring (3) passes through the stabilizing groove and is located between the two stabilizing plates (15).

6. The air induction device for regenerated asphalt production according to claim 1, characterized in that: The lower end surface of the induced air duct (1) is provided with a discharge port (16) located directly below the fan (2); the outer wall of the induced air duct (1) is provided with a discharge channel (17) connected to the discharge port (16); and the induced air duct (1) is provided with a shielding component (7) for shielding the discharge port (16).

7. The air induced device for producing recycled asphalt according to claim 6, characterized in that: The shielding assembly (7) comprises a shielding plate (71), an elastic spring (72) and a pulling handle (73); the air duct (1) is provided with a plate groove (18) in the length direction and connected to the discharge port (16); the shielding plate (71) is located at the discharge port (16) and one end of the shielding plate (71) is located in the plate groove (18); the elastic spring (72) is located in the plate groove (18); one end of the elastic spring (72) is fixedly connected to the end of the shielding plate (71); The other end of the elastic spring (72) is fixedly connected to the inner wall of the plate groove (18); when the elastic spring (72) is in a natural state, the shielding plate (71) blocks the discharge port (16); a through hole (19) communicating with the plate groove (18) is provided on the outer wall of the air duct (1) along the length direction; the pulling handle (73) is fixedly connected to the side of the shielding plate (71) close to the through hole (19); and the pulling handle (73) passes through the through hole (19) and is located outside the air duct (1).

8. The air induced device for producing recycled asphalt according to claim 7, characterized in that: The outer wall of the air duct (1) is provided with a collar (9) adjacent to the side of the through opening (19) away from the discharge opening (16), and the collar (9) corresponds to the pulling handle (73).

9. The induced draft device for regenerated asphalt production according to claim 7, characterized in that: A protection tube (8) is arranged on the inner wall of the plate groove (18) along the moving direction of the shielding plate (71); a protection rod (81) corresponding to the protection tube (8) is arranged on the side of the shielding plate (71) close to the plate groove (18); the protection rod (81) penetrates into the protection tube (8) and is slidably connected to the protection tube (8).

Images