A hot recycling additive device asphalt smoke treatment mechanism

Abstract

This utility model relates to the technical field of asphalt fume treatment equipment, specifically to a hot recycling additive device for asphalt fume treatment, including a recycling drying drum and a flue gas treatment component. One end of the recycling drying drum is equipped with a combustion chamber, and the other end is equipped with a discharge smoke box for connecting to the flue gas treatment component. The flue gas treatment component includes a gas-solid separation box, with an air inlet at the top and two conveying pipes at the bottom. After the asphalt fume is subjected to two settling operations using the discharge smoke box and the gas-solid separation box, solid particles in the asphalt fume are removed before combustion treatment. Compared with the use of dust collector bags, the settling-type solid removal equipment has a longer service life and lower maintenance costs. The gas-solid separation before combustion also reduces wear and tear on the combustion equipment and extends its service life.

Description

Technical Field

[0001] This utility model relates to the technical field of asphalt fume treatment equipment, specifically to an asphalt fume treatment mechanism using a hot regeneration additive device. Background Technology

[0002] Currently, some mainstream manufacturers collect asphalt fumes and directly feed them into baghouse dust collectors. This not only increases the processing air volume and difficulty of the baghouse dust collector (due to the high asphalt fumes content), but also reduces the service life of the filter bags and prevents the recovery powder from being utilized, generating new polluting waste. Other manufacturers collect asphalt fumes and directly send them into the primary drying drum for combustion. Because the asphalt fumes have not undergone settling and dust removal treatment, they contain a large number of small solid particles. These particles easily settle, mix, and adhere to the inner wall of the pipes at bends, changes in air velocity, and changes in cross-section, clogging the pipes over time. Furthermore, when untreated asphalt fumes burn inside the primary drying drum, they easily affect the burner's performance, potentially clogging the burner nozzles and causing equipment damage. Utility Model Content

[0003] To address the aforementioned issues, this utility model provides a hot recycling additive asphalt fume treatment mechanism. This mechanism performs two sedimentation processes on the asphalt fumes to achieve gas-solid separation, reducing the content of particulate solids in the asphalt fumes. The settled gas is then combusted, making the entire production process more environmentally friendly and preventing damage to the equipment.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a hot recycling additive device for treating asphalt fumes, comprising a recycling drying drum and a flue gas treatment component. One end of the recycling drying drum is provided with a combustion chamber, and the other end is provided with a discharge fumes box connected to the flue gas treatment component. The flue gas treatment component includes a gas-solid separation box, with an air inlet at the upper part and a conveying pipe and a conveying pipe at the lower part.

[0005] As a further improvement to the above technical solution:

[0006] One end of the conveying pipeline is connected to the gas-solid separation box, and the other end is connected to the combustion chamber. The gas-solid separation box is provided with an air duct connected to the conveying pipeline, and a circulating fan is provided in the middle of the air duct.

[0007] One end of the conveying pipeline is connected to the gas-solid separation box, and the other end is provided with the combustion chamber. The gas-solid separation box is provided with the air duct connected to the conveying pipeline, and the air duct is provided with the circulating fan in the middle.

[0008] The upper part of the discharge smoke box is provided with a flue gas pipe connected to the gas-solid separation box, and the lower part is provided with a slag discharge port. An interception baffle is provided inside the discharge smoke box.

[0009] The number of intercepting baffles is multiple and they are evenly distributed along the height direction of the discharge smoke box. Each intercepting baffle is provided with a flow gap between itself and the side wall of the discharge smoke box, and the installation directions of two adjacent intercepting baffles are opposite.

[0010] The gas-solid separation box is equipped with a settling section and a smoke exhaust section, and a partition is provided between the settling section and the smoke exhaust section. A flue is provided between the upper end of the partition and the bottom of the gas-solid separation box.

[0011] The partition includes a connecting part, a guide part, and an intercepting part arranged sequentially from bottom to top, and the guide part is inclined.

[0012] The bottom of the settling section is provided with an inclined plate, the height of which is less than the height of the partition.

[0013] The beneficial effects of this utility model embodiment are as follows: The hot recycling addition device asphalt fume treatment mechanism includes a recycling drying drum and a flue gas treatment component. One end of the recycling drying drum is equipped with a combustion chamber, and the other end is equipped with a discharge smoke box for connecting the flue gas treatment component. The flue gas treatment component includes a gas-solid separation box. The upper part of the gas-solid separation box is provided with an air inlet, and the lower part is provided with a conveying pipe and a conveying pipe. After the asphalt fume is subjected to two settling operations by the discharge smoke box and the gas-solid separation box, the solid particles in the asphalt fume are removed, and then combustion treatment is carried out. Compared with the use of dust collector bags, the settling type solid impurity removal equipment has a longer service life and lower maintenance costs. Combustion after gas-solid separation can also reduce the wear and tear on the combustion equipment and extend the service life of the combustion equipment.

[0014] By using the discharge smoke box and the gas-solid separation box to intercept the flue gas twice, the solid interception rate is improved, the smoke gas discharged through the hidden box is purer, and the combustion gun nozzle is prevented from being blocked in the combustion chamber.

[0015] After the conveying pipeline is connected to the combustion chamber, the purified flue gas can be used as fuel for the regeneration drying drum, realizing the reuse of waste gas and saving fuel costs required for production without damaging the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the discharge smoke box in this utility model;

[0018] Figure 3 This is a top view of the gas-solid separation box in this utility model;

[0019] Figure 4 This is a cross-sectional view of the gas-solid separation box in this utility model.

[0020] In the diagram: 1. Regenerated drying drum; 2. Combustion chamber one; 3. Discharge smoke box; 4. Gas-solid separation box; 5. Air inlet; 6. Conveying pipe one; 7. Conveying pipe two; 8. Air duct one; 9. Circulating fan one; 10. Combustion chamber two; 11. Air duct two; 12. Circulating fan two; 13. Flue gas duct; 14. Slag discharge port; 15. Intercepting baffle; 16. Flow gap; 17. Settling section; 18. Smoke exhaust section; 19. Flue; 20. Baffle; 21. Connecting section; 22. Guide section; 23. Intercepting section; 24. Inclined plate. Detailed Implementation

[0021] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0022] like Figure 1 As shown, the asphalt fume treatment mechanism of the hot recycling addition device in this embodiment includes a recycling drying drum 1 and a flue gas treatment component. One end of the recycling drying drum 1 is equipped with a combustion chamber 2, and the other end is equipped with a discharge smoke box 3 for connecting to the flue gas treatment component. The flue gas treatment component includes a gas-solid separation box 4. The upper part of the gas-solid separation box 4 is provided with an air inlet 5, and the lower part is provided with a conveying pipe 6 and a conveying pipe 7. After the asphalt fume is subjected to two settling operations by the discharge smoke box 3 and the gas-solid separation box 4, the solid particles in the asphalt fume are removed, and then combustion treatment is carried out. Compared with the use of dust collector bags, the settling type solid removal equipment has a longer service life and lower maintenance costs. The gas-solid separation before combustion can also reduce the wear and tear on the combustion equipment and extend the service life of the combustion equipment.

[0023] One end of the conveying pipe 6 is connected to the gas-solid separation box 4, and the other end is connected to the combustion chamber 2. The gas-solid separation box 4 is equipped with an air duct 8 connected to the conveying pipe 6. A circulating fan 9 is installed in the middle of the air duct 8. The circulating fan 9 is used to transport part of the settled flue gas to the combustion chamber 2 for over-combustion. While meeting the environmental protection requirements, the flue gas can also be reused as fuel for the regenerated drying drum 1, which plays a role in energy saving and emission reduction.

[0024] One end of the conveying pipe 2 7 is connected to the gas-solid separation box 4, and the other end is provided with the combustion chamber 2 10. The gas-solid separation box 4 is provided with the air duct 2 11 connected to the conveying pipe 2 7. The middle of the air duct 2 11 is provided with the circulating fan 2 12. The circulating fan 2 12 is used to transport the settled flue gas to the combustion chamber 2 10 for combustion before being discharged.

[0025] like Figure 2 As shown, the upper part of the discharge smoke box 3 is provided with a flue gas pipe 13 connected to the gas-solid separation box 4, and the lower part is provided with a slag discharge port 14. The discharge smoke box 3 is provided with intercepting baffles 15. There are multiple intercepting baffles 15, which are evenly distributed along the height direction of the discharge smoke box 3. Each intercepting baffle 15 has a reserved flow gap 16 between it and the side wall of the discharge smoke box 3. The installation directions of two adjacent intercepting baffles 15 are opposite. Multiple flow gaps 16 form a continuous S-shaped channel in the discharge box 3, which intercepts solid particles when the flue gas passes through.

[0026] like Figure 3-4 As shown, the gas-solid separation box 4 is provided with a settling section 17 and a smoke exhaust section 18 located below the air inlet 5. A partition 20 is provided between the settling section 17 and the smoke exhaust section 18. A flue 19 is provided between the upper end of the partition 20 and the bottom of the gas-solid separation box 4. After the flue gas enters the settling section 17 through the air inlet 5, the solid particles are intercepted by the partition 20. After the gas enters the smoke exhaust section 18 through the flue 19, it is transported to the outside for combustion treatment through the first conveying pipe 6 and the second conveying pipe 7.

[0027] After the discharge smoke box 3 and the gas-solid separation box 4 perform primary and secondary gas-solid separation respectively, the solid particles in the flue gas can be completely intercepted. After interception, only periodic slag discharge is required, which will not damage the equipment. The flue gas after impurity removal will not clog the combustion nozzle during combustion.

[0028] The baffle 20 includes a connecting part 21, a guide part 22 and an intercepting part 23 arranged sequentially from bottom to top. The guide part 22 is inclined and extends from the connecting part 21 to the intercepting part 23, with the slope gradually increasing. This design of the baffle can increase the space after the flue gas enters, thereby slowing down the flow rate of the flue gas in the settling part 17, enhancing the effect of solid settling, and thus improving the interception efficiency.

[0029] The bottom of the settling section 17 is provided with an inclined plate 24. The height of the inclined plate 24 is less than the height of the partition plate 20. The inclined plate 24 is located below the air inlet 5. After the flue gas enters, it collides with the inclined plate. The solid particles slide down the inclined plate and are intercepted by the partition plate 20. The flue gas then enters the exhaust section 18 through the flue 19 for discharge.

[0030] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0033] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A hot recycled additive plant bitumen fume treatment mechanism comprising a regeneration drying drum (1) and a fume treatment assembly, characterized in that: One end of the regenerated drying drum (1) is provided with a combustion chamber (2), and the other end is provided with a discharge smoke box (3) connected to the flue gas treatment assembly; The flue gas treatment assembly includes a gas-solid separation box (4), with an air inlet (5) at the top and a conveying pipe (6) and a conveying pipe (7) at the bottom.

2. The hot-recycled additive device asphalt fume treatment mechanism according to claim 1, characterized in that: One end of the conveying pipe (6) is connected to the gas-solid separation box (4), and the other end is connected to the combustion chamber (2). The gas-solid separation box (4) is provided with an air duct (8) connected to the conveying pipe (6), and a circulating fan (9) is provided in the middle of the air duct (8).

3. The hot-recycled additive device asphalt fume treatment mechanism according to claim 2, characterized in that: One end of the second conveying pipe (7) is connected to the gas-solid separation box (4), and the other end is provided with the second combustion chamber (10). The gas-solid separation box (4) is provided with the second air duct (11) connected to the second conveying pipe (7), and the second circulating fan (12) is provided in the middle of the second air duct (11).

4. The asphalt fume treatment mechanism of the thermal recycling additive device according to claim 1, characterized in that: The upper part of the discharge smoke box (3) is provided with a flue gas pipe (13) connected to the gas-solid separation box (4), and the lower part is provided with a slag discharge port (14). The discharge smoke box (3) is provided with an interception baffle (15).

5. The hot-recycled additive device asphalt fume treatment mechanism according to claim 4, characterized in that: The number of intercepting baffles (15) is multiple and they are evenly distributed along the height direction of the discharge smoke box (3). Each intercepting baffle (15) is provided with a flow gap (16) between it and the side wall of the discharge smoke box (3). The installation directions of two adjacent intercepting baffles (15) are opposite.

6. The hot-recycled additive device asphalt fume treatment mechanism of claim 1, wherein: The gas-solid separation box (4) is provided with a settling section (17) and a smoke exhaust section (18). A partition (20) is provided between the settling section (17) and the smoke exhaust section (18). A flue (19) is provided between the upper end of the partition (20) and the bottom of the gas-solid separation box (4).

7. The hot-recycled additive device asphalt fume treatment mechanism according to claim 6, characterized in that: The partition (20) includes a connecting part (21), a guide part (22) and an intercepting part (23) arranged sequentially from bottom to top, and the guide part (22) is inclined.

8. The asphalt fume treatment mechanism of the thermal recycling additive device according to claim 6, characterized in that: The bottom of the settling section (17) is provided with an inclined plate (24), the height of which is less than the height of the partition plate (20).

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