Asphalt heating furnace

Abstract

The utility model discloses an asphalt heating furnace which comprises a furnace body and a stirring mechanism. The furnace body is formed by combining a heating cover body with an opening in the bottom and a cover cap, a first annular step on the outer ring of the heating cover body and a second annular step on the outer ring of the cover cap are connected through corresponding fixing holes, and an inner sleeve which extends upwards and is arranged in the heating cover body in a sleeved mode is arranged on the cover cap. According to the structural design, the split structure of the furnace body is achieved, disassembly is convenient, operation is easy when asphalt is cleaned or the inner sleeve is replaced, the maintenance difficulty is lowered, the corrosion risk is lowered, and the service life of the heating cover body is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of heating furnace technology, specifically to an asphalt heating furnace. Background Technology

[0002] Asphalt heating furnaces are crucial equipment in asphalt production and related applications. Traditional asphalt heating furnaces typically employ a one-piece furnace structure, which has revealed numerous problems during actual use.

[0003] First, asphalt has strong viscosity and easily adheres to the inner wall of the furnace during heating and stirring. Since the furnace is a single unit, cleaning the asphalt adhering to its inner wall becomes extremely difficult. Currently, cleaning often requires a significant amount of manpower, resources, and time, resulting in low efficiency and unreliable cleaning effectiveness. This not only increases production costs but also affects the continuity and efficiency of production.

[0004] Secondly, when the inner wall of the furnace is damaged due to long-term corrosion by asphalt or other reasons, the entire furnace body often needs to be repaired or replaced due to its integrated structure. The repair costs are high and the repair process is complicated, which seriously affects the production schedule.

[0005] In summary, existing asphalt heating furnaces have significant shortcomings in terms of cleaning and maintenance, and a new design is urgently needed to address these issues in order to improve production efficiency and reduce production costs. Utility Model Content

[0006] In view of the shortcomings of the prior art, this utility model provides an asphalt heating furnace.

[0007] The technical solution adopted by this utility model is: an asphalt heating furnace, including a furnace body and a stirring mechanism. The furnace body includes a heating hood with a bottom opening and a cover that covers the bottom opening of the heating hood. The outer ring of the heating hood is provided with an annular step one, and the outer ring of the cover is provided with an annular step two. Corresponding fixing holes are provided at intervals on the annular step one and the annular step two. The cover extends upward with an inner sleeve that fits into the heating hood.

[0008] Furthermore, a manhole is provided on the side of the furnace body, and a manhole cover is fixed to the manhole by bolts. The manhole cover is provided with a handle.

[0009] Furthermore, the upper end of the furnace body is located at the feed inlet.

[0010] Furthermore, the cover is provided with a discharge port.

[0011] Furthermore, the stirring mechanism includes a stirring motor fixed on the heating hood, a rotating shaft connected to the output end of the stirring motor, and stirring blades evenly spaced on the rotating shaft, the rotating shaft being eccentrically positioned inside the furnace.

[0012] Furthermore, the stirring blade includes a stirring rod fixed to the rotating shaft, a telescopic rod that telescopically engages with a telescopic hole at the top of the stirring rod, a brush plate fixed to the top of the telescopic rod, brush bristles evenly distributed on the brush plate, and telescopic springs at both ends connected to the inner wall of the telescopic hole and the telescopic rod.

[0013] Furthermore, the inner wall of the inner sleeve is coated with an anti-stick layer.

[0014] The beneficial effects of this utility model are:

[0015] 1. Convenient and efficient cleaning: This application designs the furnace body as a separate structure of heating hood and cover, with materials being stirred and heated within the inner sleeve of the cover. During cleaning, the cover can be easily removed simply by loosening the bolts connecting the heating hood and cover. Compared to traditional integrated furnace bodies, this significantly reduces cleaning difficulty, enabling more comprehensive and rapid removal of asphalt adhering to the inner sleeve, significantly improving cleaning efficiency, reducing the manpower, material resources, and time costs required for cleaning, and ensuring production continuity.

[0016] 2. Reduced maintenance costs: When components inside the furnace that come into direct contact with asphalt, such as the inner sleeve of the cover, are damaged due to long-term asphalt corrosion or other reasons, unlike traditional integrated furnaces where the entire furnace body needs repair or replacement, only the damaged cover or inner sleeve needs to be replaced. This significantly reduces maintenance costs, shortens maintenance cycles, minimizes the impact on production schedules, and improves the company's economic efficiency.

[0017] 3. Enhanced Equipment Flexibility: The heating hood and cover are detachably connected by bolts, allowing for easy adjustment and optimization of the furnace body to meet different production needs. For example, different specifications of inner sleeves can be replaced according to changes in production processes to meet different output and stirring requirements, enhancing the applicability and flexibility of the equipment and increasing its value.

[0018] 4. Extended overall equipment lifespan: Because the inner sleeve can be replaced individually, when it is damaged by corrosion or other factors, a new inner sleeve can be replaced promptly, preventing further damage from affecting the entire furnace body. This design effectively protects key components such as the heating hood, thereby extending the overall lifespan of the asphalt heating furnace, reducing the frequency of equipment replacement, and lowering the company's equipment investment costs.

[0019] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The utility model will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a cross-sectional schematic diagram for practical application.

[0022] Figure 1-2 Components: 1. Furnace body; 2. Stirring mechanism; 3. Heating hood; 4. Cover; 5. Annular step one; 6. Annular step two; 7. Fixing hole; 8. Inner sleeve; 9. Manhole; 10. Manhole cover; 11. Handle; 12. Feed inlet; 13. Discharge outlet; 14. Stirring motor; 15. Rotating shaft; 16. Stirring blade; 17. Stirring rod; 18. Telescopic hole; 19. Telescopic rod; 20. Brush plate; 21. Brush bristles; 22. Telescopic spring. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0025] This utility model provides an asphalt heating furnace.

[0026] In this embodiment, refer to Figure 1-2 The asphalt heating furnace includes a furnace body 1 and a stirring mechanism 2. The furnace body 1 includes a heating hood 3 with a bottom opening and a cover 4 that covers the bottom opening of the heating hood 3. The heating hood 3 has an annular step 5 on its outer ring and an annular step 6 on its outer ring. Corresponding fixing holes 7 are provided at intervals on the annular step 5 and the annular step 6. The cover extends upward to have an inner sleeve 8 that fits into the heating hood.

[0027] In the above technical solution, the furnace body adopts a combined structure of a heating hood and a cover with a bottom opening, connected by annular steps one and two and corresponding fixing holes, with an inner sleeve installed inside the cover. This design achieves a split structure for the furnace body, facilitating disassembly. Cleaning asphalt or replacing the inner sleeve is simple, reducing maintenance difficulty. Simultaneously, the inner sleeve effectively reduces direct contact between asphalt and the heating hood, lowering the risk of corrosion and extending the service life of the heating hood.

[0028] Specifically, a manhole 9 is provided on the side of the furnace body, and a manhole cover 10 is fixed to the manhole 9 by bolts. A handle 11 is provided on the manhole cover 10.

[0029] In this embodiment, a manhole is provided on the side of the furnace body. The manhole cover is fixed with bolts and has a handle. The manhole provides a convenient passage for workers to enter the furnace body for equipment inspection, maintenance, cleaning, and other operations. The bolted manhole cover ensures the furnace body's airtightness, preventing heat loss and the entry of foreign objects, while the handle makes it easy for workers to open and close the manhole cover, improving operational convenience.

[0030] Specifically, the upper end of the furnace body is located at the feed inlet 12.

[0031] In this embodiment, a feed inlet is provided at the upper end of the furnace body for feeding materials.

[0032] Specifically, the cover is provided with a discharge port 13.

[0033] In this embodiment, a discharge port is provided on the cover for discharging material.

[0034] Specifically, the stirring mechanism includes a stirring motor 14 fixed on the heating cover, a rotating shaft 15 connected to the output end of the stirring motor 14, and stirring blades 16 evenly spaced on the rotating shaft. The rotating shaft is eccentrically positioned inside the furnace.

[0035] In this embodiment, the mixing mechanism includes a mixing motor, an eccentrically positioned rotating shaft, and mixing blades. The eccentrically positioned rotating shaft allows for a wider mixing area, reduces dead zones, improves mixing uniformity, enhances the shearing effect between materials, and improves the mixing quality of asphalt and additives.

[0036] Specifically, the stirring blade includes a stirring rod 17 fixed to the rotating shaft, a telescopic rod 19 that telescopically engages with the telescopic hole 18 at the top of the stirring rod 17, a brush plate 20 fixed to the top of the telescopic rod, brush bristles 21 evenly distributed on the brush plate, and telescopic springs 2 whose two ends are connected to the inner wall of the telescopic hole and the telescopic rod.

[0037] In this embodiment, the stirring rod of the stirring blade is telescopically coordinated with the telescopic rod, and includes a brush plate, brush bristles, and a telescopic spring. During the stirring process, the telescopic rod can adaptively adjust its position under the action of the telescopic spring, utilizing centrifugal force to ensure that the brush bristles on the brush plate are always in good contact with the inner wall of the furnace, effectively cleaning the asphalt adhering to the furnace wall, reducing wall-hanging phenomena, and also flexibly adjusting the stirring intensity and range according to the material conditions.

[0038] Specifically, the inner wall of the inner sleeve is coated with an anti-stick layer.

[0039] In this embodiment, the inner wall of the inner sleeve is coated with an anti-stick layer. The anti-stick layer can significantly reduce the adhesion between the asphalt and the inner wall of the inner sleeve, making it less likely for the asphalt to adhere to the inner sleeve during stirring and heating, greatly reducing cleaning difficulty, and also helping to keep the inner sleeve clean, extend its service life, and reduce maintenance costs.

[0040] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. An asphalt heating furnace comprising a furnace body and an agitating mechanism, characterized by: The furnace body comprises a bottom-opened heating cover and a cover lid covering the bottom opening of the heating cover, an annular step one is arranged on the outer periphery of the heating cover, an annular step two is arranged on the outer periphery of the cover lid, corresponding fixing holes are arranged on the annular step one and the annular step two at intervals, and the cover lid extends upwardly to have an inner sleeve sleeved into the heating cover.

2. The asphalt heater of claim 1, wherein: A manhole cover is fixed on the manhole through bolts, and a handle is arranged on the manhole cover.

3. The asphalt heater of claim 1, wherein: The upper end of the furnace body is provided with a feeding port.

4. The asphalt heater of claim 1, wherein: A discharging port is arranged on the cover lid.

5. The bitumen heater as claimed in any one of claims 1 to 4, wherein: The stirring mechanism comprises a stirring motor fixed on the heating cover, a rotating shaft connected with the output end of the stirring motor, and stirring blades arranged on the rotating shaft at intervals, and the rotating shaft is arranged eccentrically in the furnace body.

6. The asphalt heater of claim 5, wherein: The stirring blade comprises a stirring rod fixedly connected with the rotating shaft, a telescopic rod telescopically matched with a telescopic hole at the top of the stirring rod, a brush plate fixed at the top of the telescopic rod, brush hairs uniformly distributed on the brush plate, and telescopic springs connected with the inner wall of the telescopic hole and the telescopic rod at both ends.

7. The asphalt heater according to any one of claims 1-4, characterized in that: A layer of anti-sticking layer is coated on the inner wall of the inner sleeve.

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