Connecting device for collecting asphalt production flue gas

Abstract

The utility model discloses a connecting device for collecting asphalt production flue gas, which comprises a connecting component and a connecting pipe, two ends of the connecting pipe are respectively connected with a flue gas outlet of asphalt production equipment and a gas inlet of a gas purification device through the connecting component, the connecting pipe comprises an inner layer, an outer layer and a support line, the inner layer and the outer layer are both made of flexible materials, and the support line is made of flexible materials. The inner layer and the outer layer are both of a cylindrical structure, the inner layer is attached and fixed to the interior of the outer layer, the supporting line is arranged between the inner layer and the outer layer, the two ends of the supporting line are fixedly arranged on the two connecting assemblies respectively, and the supporting line extends in a spiral shape between the inner layer and the outer layer; by arranging the flexible connecting pipe, the positions of the two ends of the connecting pipe can be adjusted, so that alignment connection of the smoke outlet and the air inlet can be achieved more conveniently, when the gas purification device is installed and updated, rapid connection can be achieved, the installation efficiency is improved, meanwhile, the connecting state of the connecting assembly is better, the overall air tightness is effectively guaranteed, and the service life of the gas purification device is prolonged. And smoke leakage is prevented.

Description

Technical Field

[0001] This utility model relates to the technical field of asphalt production equipment, specifically to a connection device for collecting asphalt production flue gas. Background Technology

[0002] Modified bitumen, an important product in the tar processing industry, is widely used in the manufacture of graphite electrodes, electrode binders, and other products. It is produced by using medium-temperature bitumen as raw material, which is heated in a tubular furnace and then undergoes a thermal polymerization reaction in a reactor. The production and storage of modified bitumen generate toxic bitumen fumes, causing significant harm to humans and animals. In particular, benzo[a]pyrene in the bitumen fumes is highly carcinogenic, making the purification and control of bitumen fumes essential.

[0003] Current purification methods typically involve collecting and purifying asphalt fumes using gas purification devices. The connection between the asphalt exhaust outlet and the gas purification device is usually a direct metal straight pipe to ensure a stable connection between the asphalt production equipment and the gas purification device. However, because gas purification devices are often upgraded, the position of the air inlet can easily change before and after replacement, such as due to height or horizontal deviations. This makes it impossible for the original metal straight pipe to achieve a good connection, requiring adjustments, installation, or replacement with a metal straight pipe of the appropriate size. This significantly extends the installation and replacement time of the gas purification device. Furthermore, adjustments can easily lead to gaps in the connection, causing asphalt fumes to leak out.

[0004] In view of the above-mentioned defects, the creator of this utility model has finally obtained this utility model after a long period of research and practice. Utility Model Content

[0005] To address the aforementioned technical deficiencies, the present invention provides a connecting device for collecting asphalt production fumes, comprising a connecting assembly and a connecting pipe. The two ends of the connecting pipe are respectively connected to the fumes outlet of the asphalt production equipment and the air inlet of a gas purification device via the connecting assembly. The connecting pipe includes an inner layer, an outer layer, and a support line. Both the inner and outer layers are made of flexible material and are cylindrical in shape. The inner layer is fitted and fixed inside the outer layer. The support line is positioned between the inner and outer layers, with both ends fixedly mounted on the two connecting assemblies. The support line extends spirally between the inner and outer layers.

[0006] Preferably, the connecting assembly includes a first flange ring, a second flange ring, and connecting bolts. Both the first flange ring and the second flange ring are circular. The first flange ring is fixedly disposed on the smoke outlet and the air inlet, and the second flange ring is fixedly disposed on the end of the connecting pipe. Both the first flange ring and the second flange ring are provided with connecting holes, and the connecting holes on the first flange ring and the second flange ring are arranged in a one-to-one correspondence. The connecting bolts pass through the two corresponding connecting holes and are fixedly connected and fixed to the first flange ring and the second flange ring by means of fixing nuts.

[0007] Preferably, the first flange ring is provided with an annular sealing groove, and a sealing ring is provided in the sealing groove. The sealing ring is disposed between the first flange ring and the second flange ring and is clamped and fixed by the first flange ring and the second flange ring.

[0008] Preferably, a connecting sleeve is also fixedly provided on the second flange ring. The connecting sleeve and the second flange ring are coaxially arranged. The end of the connecting pipe is located inside the connecting sleeve, and the outer layer is sealed and connected to the inner wall of the connecting sleeve. The end of the support line extends out from between the inner layer and the outer layer and is welded and fixed to the inner wall of the connecting sleeve and the second flange ring.

[0009] Preferably, the inner diameter of the connecting sleeve is larger than the inner diameter of the second flange ring.

[0010] Preferably, the connecting assembly is further provided with a support portion, the support portion including a fixing seat, the fixing seat being arranged in a ring around the outside of the connecting sleeve, and the fixing seat being fixedly connected to both the second flange ring and the connecting sleeve.

[0011] Preferably, the support part further includes a support frame and a lifting sleeve. The lifting sleeve is configured as a hollow tubular component and is sleeved on the connecting pipe. One end of the support frame is fixedly mounted on the fixed base, and the other end is connected to the lifting sleeve.

[0012] Preferably, the support frame includes a fixed rod and an adjusting rod. The fixed rod is fixedly mounted on the fixed seat. One end of the fixed rod is rotatably connected to one end of the adjusting rod via a first locking bolt. The other end of the adjusting rod is rotatably connected to the adjusting seat via a second locking bolt. The adjusting seat is fixedly mounted on the outside of the lifting sleeve.

[0013] Preferably, both ends of the adjusting rod are provided with a first rotating hole, the first rotating hole being a threaded hole, and the adjusting seat and the fixing rod are provided with a second rotating hole, the second rotating hole being a through hole, the first locking bolt and the second locking bolt passing through the second rotating hole and being threadedly connected to the corresponding first rotating hole.

[0014] Preferably, the adjusting rod is provided with a first positioning surface corresponding to the first rotating hole, and the adjusting seat and the fixing rod are provided with a second positioning surface corresponding to the second rotating hole. The first positioning surface and the second positioning surface are fitted together. A first positioning ridge is provided on the first positioning surface, and a second positioning ridge is provided on the second positioning surface. A plurality of first positioning ridges are evenly distributed in a ring around the corresponding first rotating hole, and a plurality of second positioning ridges are evenly distributed in a ring around the corresponding second rotating hole. The fitted first positioning surface and the second positioning surface are provided with a first positioning ridge between two adjacent second positioning ridges.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting the flexible connecting pipe, the position of both ends of the connecting pipe can be adjusted, which makes it easier to align and connect the smoke outlet and the air inlet. When installing or updating the gas purification device, it can achieve quick connection and improve installation efficiency. At the same time, the connection status of the connecting components is better, effectively ensuring the overall airtightness and preventing smoke leakage. Attached Figure Description

[0016] Figure 1 This is a structural view of the connecting device for collecting asphalt production flue gas;

[0017] Figure 2 This is a structural view of the connecting component;

[0018] Figure 3 This is a structural view of the first flange ring;

[0019] Figure 4 This is a structural view of the second flange ring;

[0020] Figure 5 This is a view of the connection structure between the fixed rod and the adjusting rod;

[0021] Figure 6 This is a schematic diagram of the engagement between the first positioning surface and the second positioning surface.

[0022] The numbers in the diagram represent:

[0023] 1-Connecting pipe; 2-Connecting assembly; 11-Inner layer; 12-Outer layer; 13-Support line; 21-First flange ring; 22-Second flange ring; 23-Connecting bolt; 24-Fixing nut; 25-Sealing ring; 26-Connecting sleeve; 27-Connecting hole; 31-Fixing seat; 32-Lifting sleeve; 33-Fixing rod; 34-Adjusting rod; 35-Adjusting seat; 36-First locking bolt; 37-First positioning surface; 38-Second positioning surface; 39-First positioning rib; 40-Second positioning rib. Detailed Implementation

[0024] The above-mentioned and other technical features and advantages of this utility model will be described in more detail below with reference to the accompanying drawings.

[0025] Example 1

[0026] like Figure 1 As shown, Figure 1 This is a structural view of the connecting device for collecting asphalt production fumes. The connecting device for collecting asphalt production fumes of this utility model includes a connecting component 2 and a connecting pipe 1. The two ends of the connecting pipe 1 are respectively connected to the fumes outlet of the asphalt production equipment and the air inlet of the gas purification device through the connecting component 2. The connecting pipe 1 includes an inner layer 11, an outer layer 12, and a support line 13. The inner layer 11 and the outer layer 12 are both made of flexible material and are both cylindrical. The inner layer 11 is fitted and fixed inside the outer layer 12. The support line 13 is disposed between the inner layer 11 and the outer layer 12, and the two ends of the support line 13 are respectively fixed on the two connecting components 2. The support line 13 extends spirally between the inner layer 11 and the outer layer 12 to achieve structural support for the overall circular cross-section of the connecting pipe 1. The flexible structure of the connecting pipe 1 can achieve bending deformation at a certain angle, thereby facilitating the alignment and connection of the connecting component 2 with the fumes outlet and the air inlet.

[0027] Generally, the inner layer 11 is made of rubber or polyurethane, the outer layer 12 is a braided layer, and the support line 13 is made of metal wire. The inner layer 11 forms a sealed tube to guide the flue gas and prevent it from leaking out. The outer layer 12 is used to protect the inner layer 11. At the same time, the clamping and fixing of the support line 13 by the inner layer 11 and the outer layer 12 ensures the stability of the position of the support line 13, thereby achieving effective support for the overall structure of the connecting pipe 1.

[0028] like Figure 2 As shown, Figure 2The diagram shows the structure of the connecting assembly. Preferably, the connecting assembly 2 includes a first flange ring 21, a second flange ring 22, and a connecting bolt 23. Both the first flange ring 21 and the second flange ring 22 are circular. The first flange ring 21 is fixedly disposed on the smoke outlet and the air inlet, and the second flange ring 22 is fixedly disposed on the end of the connecting pipe 1. Both the first flange ring 21 and the second flange ring 22 are provided with connecting holes 27. The connecting holes 27 on the first flange ring 21 and the second flange ring 22 are arranged in a one-to-one correspondence. The connecting bolt 23 passes through the two corresponding connecting holes 27 and is fixedly connected to the first flange ring 21 and the second flange ring 22 by means of a fixing nut 24, thereby realizing the fixed connection between the connecting pipe 1 and the smoke outlet and the air inlet.

[0029] like Figure 3 As shown, Figure 3 This is a structural view of the first flange ring; preferably, the first flange ring 21 is provided with an annular sealing groove, and a sealing ring 25 is provided in the sealing groove. The sealing ring 25 is disposed between the first flange ring 21 and the second flange ring 22 and is clamped and fixed by the first flange ring 21 and the second flange ring 22, thereby ensuring good airtightness between the first flange ring 21 and the second flange ring 22.

[0030] Preferably, a connecting sleeve 26 is also fixedly provided on the second flange ring 22. The connecting sleeve 26 and the second flange ring 22 are coaxially arranged. The end of the connecting pipe 1 is disposed inside the connecting sleeve 26, and the outer layer 12 is sealed and connected to the inner wall of the connecting sleeve 26. The end of the support line 13 extends from between the inner layer 11 and the outer layer 12 and is welded and fixed to the inner wall of the connecting sleeve 26 and the second flange ring 22, thereby realizing the fixed connection between the connecting pipe 1 and the connecting assembly 2.

[0031] Generally, the inner diameter of the connecting sleeve 26 is larger than the inner diameter of the second flange ring 22, so that a boss can be formed at the connection position of the connecting sleeve 26 and the second flange ring 22. The support line 13 can be coiled on the boss and welded to the boss, thereby adjusting the fixed connection effect between the support line 13 and the connecting component 2.

[0032] This invention allows for position adjustment at both ends of the flexible connecting pipe 1, making it easier to align the smoke outlet and the air inlet. This enables rapid connection and improves installation efficiency during the installation and replacement of the gas purification device. Furthermore, the connection of the connecting component 2 is improved, effectively ensuring overall airtightness and preventing smoke leakage.

[0033] Example 2

[0034] like Figure 4 As shown, Figure 4 This is a structural view of the second flange ring; the connecting assembly 2 is also provided with a support part, the support part including a fixing seat 31, the fixing seat 31 is arranged in a ring around the outside of the connecting sleeve 26, and the fixing seat 31 is fixedly connected to both the second flange ring 22 and the connecting sleeve 26, thereby improving the connection stability of the second flange ring 22 and the connecting sleeve 26.

[0035] Generally, the fixing seat 31 is disposed between adjacent connecting holes 27, thereby avoiding interference between the fixing seat 31 and the connecting bolt 23.

[0036] The support part also includes a support frame and a lifting sleeve 32. The lifting sleeve 32 is a hollow tubular component and is sleeved on the connecting pipe 1. One end of the support frame is fixedly mounted on the fixed base 31, and the other end is connected to the lifting sleeve. The support frame fixes the position between the lifting sleeve and the second flange ring 22, thereby allowing the connecting pipe 1 to maintain a certain stable shape, reducing the deformation of the connecting pipe 1 caused by the impact of flue gas on the connecting pipe 1, and avoiding damage caused by continuous deformation of the connecting pipe 1.

[0037] Specifically, the support frame includes a fixed rod 33 and an adjusting rod 34. The fixed rod 33 is fixedly mounted on the fixed seat 31. One end of the fixed rod 33 is rotatably connected to one end of the adjusting rod 34 via a first locking bolt 36. The other end of the adjusting rod 34 is rotatably connected to the adjusting seat 35 via a second locking bolt. The adjusting seat 35 is fixedly mounted outside the lifting sleeve 32. By rotating the adjusting rod 34 relative to the fixed rod 33, the relative rotation of the adjusting rod 34 and the lifting sleeve 32 can adjust the position between the lifting sleeve 32 and the second flange ring 22, ensuring that the lifting sleeve 32 effectively supports the connecting pipe 1.

[0038] like Figure 5 and Figure 6 As shown, Figure 5 This is a view of the connection structure between the fixed rod and the adjusting rod; Figure 6 This is a schematic diagram of the engagement between the first positioning surface and the second positioning surface.

[0039] Preferably, both ends of the adjusting rod 34 are provided with a first rotating hole, which is a threaded hole. The adjusting seat 35 and the fixing rod 33 are provided with a second rotating hole, which is a through hole. The first locking bolt 36 and the second locking bolt pass through the second rotating hole and are threadedly connected to the corresponding first rotating hole, thereby fixing the overall state of the support frame.

[0040] Generally, the adjusting rod 34 is provided with a first positioning surface 37 corresponding to the first rotating hole, and the adjusting seat 35 and the fixing rod 33 are provided with a second positioning surface 38 corresponding to the second rotating hole. The first positioning surface 37 and the second positioning surface 38 are fitted together. The first positioning surface 37 is provided with a first positioning ridge 39, and the second positioning surface 38 is provided with a second positioning ridge 40. A plurality of first positioning ridges 39 are evenly distributed in a ring around the corresponding first rotating hole, and a plurality of second positioning ridges 40 are evenly distributed in a ring around the corresponding second rotating hole. The first positioning ridge 39 on the fitted first positioning surface 37 and the second positioning surface 38 is positioned between two adjacent second positioning ridges 40, thereby realizing stable angle adjustment between the fixing rod 33 and the adjusting rod 34, and between the adjusting rod 34 and the adjusting seat 35.

[0041] In practical use, first loosen the first locking bolt 36 and the second locking bolt to increase the gap between the first positioning surface 37 and the second positioning surface 38, thereby disengaging the first positioning rib 39 and the second positioning rib 40 from the snap-fit ​​state; adjust the lifting sleeve 32 to a suitable position by rotating the adjusting rod 34 and the adjusting seat 35, and tighten the first locking bolt 36 and the second locking bolt again to make the first positioning rib 39 and the second positioning rib 40 snap-fit ​​into each other, thereby locking the position of the lifting sleeve 32 to achieve positioning support for the connecting pipe 1.

[0042] The above description is merely a preferred embodiment of the present utility model and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present utility model, all of which will fall within the protection scope of the present utility model.

Claims

1. A connecting device for collecting asphalt production flue gas, characterized in that, The device includes connecting components and connecting pipes. The two ends of the connecting pipes are respectively connected to the smoke outlet of the asphalt production equipment and the air inlet of the gas purification device through the connecting components. The connecting pipes include an inner layer, an outer layer, and a support line. The inner layer and the outer layer are both made of flexible material and are both set as cylindrical structures. The inner layer is attached and fixed inside the outer layer. The support line is set between the inner layer and the outer layer, and the two ends of the support line are respectively fixed on the two connecting components. The support line extends in a spiral shape between the inner layer and the outer layer.

2. The connecting device for collecting asphalt production flue gas as described in claim 1, characterized in that, The connecting assembly includes a first flange ring, a second flange ring, and connecting bolts. Both the first flange ring and the second flange ring are circular. The first flange ring is fixedly disposed on the smoke outlet and the air inlet, and the second flange ring is fixedly disposed on the end of the connecting pipe. Both the first flange ring and the second flange ring are provided with connecting holes, and the connecting holes on the first flange ring and the second flange ring are arranged in a one-to-one correspondence. The connecting bolts pass through the two corresponding connecting holes and are fixedly connected and fixed to the first flange ring and the second flange ring by means of fixing nuts.

3. The connecting device for collecting asphalt production flue gas as described in claim 2, characterized in that, The first flange ring is provided with an annular sealing groove, and a sealing ring is provided in the sealing groove. The sealing ring is disposed between the first flange ring and the second flange ring and is clamped and fixed by the first flange ring and the second flange ring.

4. The connecting device for collecting asphalt production flue gas as described in claim 2, characterized in that, A connecting sleeve is also fixedly installed on the second flange ring. The connecting sleeve and the second flange ring are coaxially arranged. The end of the connecting pipe is located inside the connecting sleeve, and the outer layer is sealed and connected to the inner wall of the connecting sleeve. The end of the support line extends out between the inner layer and the outer layer and is welded and fixed to the inner wall of the connecting sleeve and the second flange ring.

5. The connecting device for collecting asphalt production flue gas as described in claim 4, characterized in that, The inner diameter of the connecting sleeve is larger than the inner diameter of the second flange ring.

6. The connecting device for collecting asphalt production flue gas as described in claim 4, characterized in that, The connecting assembly is also provided with a support portion, which includes a fixing seat. The fixing seat is arranged in a ring around the outside of the connecting sleeve, and the fixing seat is fixedly connected to both the second flange ring and the connecting sleeve.

7. The connecting device for collecting asphalt production flue gas as described in claim 6, characterized in that, The support part also includes a support frame and a lifting sleeve. The lifting sleeve is a hollow tubular component and is sleeved on the connecting pipe. One end of the support frame is fixedly mounted on the fixed base, and the other end is connected to the lifting sleeve.

8. The connecting device for collecting asphalt production flue gas as described in claim 7, characterized in that, The support frame includes a fixed rod and an adjusting rod. The fixed rod is fixedly mounted on the fixed seat. One end of the fixed rod is rotatably connected to one end of the adjusting rod via a first locking bolt. The other end of the adjusting rod is rotatably connected to the adjusting seat via a second locking bolt. The adjusting seat is fixedly mounted on the outside of the lifting sleeve.

9. The connecting device for collecting asphalt production flue gas as described in claim 8, characterized in that, Both ends of the adjusting rod are provided with a first rotating hole, which is a threaded hole. The adjusting seat and the fixing rod are provided with a second rotating hole, which is a through hole. The first locking bolt and the second locking bolt pass through the second rotating hole and are threadedly connected to the corresponding first rotating hole.

10. The connecting device for collecting asphalt production flue gas as described in claim 9, characterized in that, The adjusting rod is provided with a first positioning surface corresponding to the first rotating hole, and the adjusting seat and the fixing rod are provided with a second positioning surface corresponding to the second rotating hole. The first positioning surface and the second positioning surface are fitted together. A first positioning ridge is provided on the first positioning surface, and a second positioning ridge is provided on the second positioning surface. A plurality of first positioning ridges are evenly distributed in a ring around the corresponding first rotating hole, and a plurality of second positioning ridges are evenly distributed in a ring around the corresponding second rotating hole. The fitted first positioning surface and the first positioning surface are provided with a first positioning ridge between two adjacent second positioning ridges.

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