CN221167300U

CN221167300U - Asphalt heating device

Info

Publication number: CN221167300U
Application number: CN202323136343.4U
Authority: CN
Inventors: 陈喜林
Original assignee: Hubei Leisheng New Building Materials Co ltd
Current assignee: Hubei Leisheng New Building Materials Co ltd
Priority date: 2023-11-17
Filing date: 2023-11-17
Publication date: 2024-06-18
Anticipated expiration: 2033-11-17

Abstract

The utility model provides an asphalt heating device, which comprises a steam generator and a heating tank which are arranged in parallel, wherein the heating tank comprises an inner tank body and an outer tank body which are coaxially sleeved, the inner tank body and the outer tank body are of conical cylinder structures with diameters which are sequentially reduced from top to bottom, a steam pipeline is arranged on the steam generator and communicated to the heating tank, and the steam pipeline is connected to the bottom of the outer tank body along the tangential direction relative to the outer tank body. According to the utility model, the heating tank is arranged as a coaxial inner tank body and outer tank body sleeving structure, and steam generated by the steam generator enters from the bottom of the outer tank body along the tangential direction through the steam pipeline, so that high-temperature steam starts to spirally move upwards in an annular shape along the inner wall of the outer tank body from the bottom, and continuously and uniformly heats the inner tank body in the rising process by fully covering the surface of the inner tank body, thereby obtaining faster heating efficiency, and meanwhile, the temperature of asphalt in the inner tank body is more uniform, the fluidity is also stronger, and the conditions of blockage, adhesion and the like are not easy to occur.

Description

Asphalt heating device

Technical Field

The utility model relates to the technical field of building material processing, in particular to an asphalt heating device.

Background

In recent years, highway construction in China is rapidly developed, historical breakthrough is realized in expressways and urban and rural railway construction, and the highway construction becomes an important booster for economic and social development. The development of highway construction not only improves the transportation capability, but also plays an important role in improving the investment environment, optimizing the industrial layout and the like. Along with the rapid development of highway construction, the requirements on asphalt storage and transportation equipment in the domestic market are increasing, and higher requirements on the performance of the asphalt storage and transportation equipment are also provided.

At present, in the engineering construction and maintenance construction of departments such as domestic municipal administration, traffic, highway and the like, the used asphalt heating equipment comprises an open type oil tank, heat conducting oil and an asphalt heating tank, but the heating equipment has a plurality of technical defects and other defects in the actual production process, such as asphalt heating by the open type oil tank, the heating mode has low production efficiency, high labor intensity and poor heating asphalt quality, and scalding events occur frequently in the production process; the heat conduction oil heating mode is adopted for heating, so that the investment is large, the operation and maintenance are complex, and the operation cost is high; in addition, the traditional asphalt heating tank mainly adopts a tank-in-tank heating mode, and the heating mode has a plurality of technical defects and shortcomings in the actual production process.

In this regard, chinese patent CN209836083U proposes a rapid warmer for asphalt, and the high-temperature steam cooperates with the heating device of the heating tank to heat the asphalt in the heating tank, which is beneficial to improving the heating efficiency of the heating tank, so as to greatly improve the production efficiency of asphalt. In addition, this arrangement is advantageous in reducing the loss of heat from the heating tank body, thereby maintaining the asphalt in a fluid state. However, this heating structure also has a problem in that the moving speed of the steam nozzle is limited, and the coverage thereof is small, so that it is difficult to entirely cover the entire outer surface of the heating tank, resulting in insufficient uniformity of heating; in addition, the inside pitch of heating jar is filled more usually, and steam nozzle can only heat the skin of heating jar for the pitch heating of heating jar central part is slower, has influenced whole heating efficiency.

Disclosure of utility model

Aiming at the defects in the prior art, the utility model provides an asphalt heating device which solves the problems of insufficient uniform heating and insufficient heating efficiency in the prior art.

According to the embodiment of the utility model, the asphalt heating device comprises a steam generator and a heating tank which are arranged in parallel, wherein the heating tank comprises an inner tank body and an outer tank body which are coaxially sleeved, the inner tank body and the outer tank body are of conical cylinder structures with diameters which are sequentially reduced from top to bottom, the top end surface and the bottom end surface of the inner tank body are coplanar, the top of the inner tank body is provided with a feed inlet communicated to the outside, the bottom of the inner tank body is provided with a discharge outlet, and the bottom of the outer tank body is provided with a water outlet; the steam generator is provided with a steam pipeline communicated to the heating tank, wherein the steam pipeline is provided with a steam pump, the steam pipeline is communicated to an interlayer space between the outer tank body and the inner tank body, the steam pipeline is connected to the bottom of the outer tank body along the tangential direction relative to the outer tank body, and the top of the outer tank body is correspondingly provided with an exhaust port along the tangential direction.

Further, the heating pipeline is also coaxially arranged in the inner tank body, one end of the steam pipeline, which is close to the heating tank, is bifurcated into two steam pipelines, one steam pipeline is led into an interlayer space between the outer tank body and the inner tank body, the other steam pipeline penetrates through and goes deep into the inner tank body to be connected with the bottom end of the heating pipeline, and the top end of the heating pipeline extends out of the inner tank body.

Further, the top of the heating pipeline is also connected with a backflow pipeline, and the backflow pipeline is communicated with the exhaust port and then extends to the inside of the steam generator.

Further, the reflux pipeline is also connected with a heat exchanger, and a condensed water outlet of the heat exchanger is communicated with the steam generator.

Further, the bottom of the heating tank is also provided with a supporting frame, and the heating tank is supported above the ground by the supporting frame, so that the material outlet and the water outlet are not blocked.

Further, the bottom of the outer tank body is an inclined surface, and the water outlet is arranged at the lowest point of the inclined surface.

Compared with the prior art, the utility model has the following beneficial effects:

1. According to the utility model, the heating tank is arranged as a coaxial inner tank body and an outer tank body sleeved structure, the inner tank body and the outer tank body are conical cylinders, and steam generated by the steam generator enters from the bottom of the outer tank body along the tangential direction through the steam pipeline, so that high-temperature steam starts to spirally move upwards in an annular shape along the inner wall of the outer tank body from the bottom, and passes through the surface of the inner tank body in a full coverage manner in the rising process, thereby continuously and uniformly heating the inner tank body, obtaining faster heating efficiency, ensuring that the temperature of asphalt in the inner tank body is more uniform, ensuring that the fluidity of the asphalt is stronger, and ensuring that the asphalt is not easy to block, stick and the like;

2. The heating pipeline is arranged in the inner tank body, so that high-temperature steam can directly reach the center of asphalt and can be matched with the steam rising in an external spiral mode to heat the asphalt from the inner direction and the outer direction at the same time, and the heating efficiency and the heating uniformity of the asphalt are further improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.

Fig. 2 is a schematic side view of an internal structure of an embodiment of the present utility model.

In the above figures: 1. a steam generator; 2. a heating tank; 3. a steam pipe; 4. a heating pipe; 5. a return line; 6. a heat exchanger; 7. a support frame; 21. an outer can; 22. an inner tank; 31. a steam pump; 211. a water outlet; 212. an exhaust port; 221. a feed inlet; 222. and a discharge port.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.

As shown in fig. 1, the embodiment of the utility model provides an asphalt heating device, which comprises a steam generator 1 and a heating tank 2 which are arranged in parallel, wherein the steam generator 1 is fixedly arranged on the ground, a supporting frame 7 is arranged at the bottom of the heating tank 2 and is erected above the ground, so that asphalt at the bottom is discharged conveniently. The two are connected through a steam pipeline 3, and high-temperature steam generated by the steam generator 1 is led into the heating tank 2 to heat asphalt.

As shown in fig. 2, in this embodiment, the heating tank 2 includes an inner tank 22 and an outer tank 21 coaxially sleeved, the inner tank 22 and the outer tank 21 are closed tanks with conical cylinder structures with diameters sequentially decreasing from top to bottom, and top end surfaces and bottom end surfaces of the two are coplanar. The top of the inner tank 22 is provided with a feed inlet 221 communicated to the outside, and the bottom is provided with a discharge outlet 222. Where the inlet 221 is of larger diameter, it may be preferable to arrange a funnel structure so that solid or semi-fluid asphalt is added to the interior. The bottom of the outer tank 21 is provided with a drain port 211 for draining condensed water condensed on the inner wall of the outer tank 21. Preferably, the bottom of the outer tank 21 is an inclined surface, and the drain port 211 is arranged at the lowest point of the inclined surface, so that condensed water can be better drained, and the phenomenon that part of condensed water remains in the outer tank 21 to cool the high-temperature steam just entering, and the asphalt heating effect is affected is avoided.

In this embodiment, the steam pump 31 is disposed on the steam pipe 3, the steam pipe 3 is connected to the interlayer space between the outer tank 21 and the inner tank 22, and the steam pipe 3 is connected to the bottom of the outer tank 21 along the tangential direction relative to the outer tank 21, and the top of the outer tank 21 is correspondingly provided with the exhaust port 212 along the tangential direction. Therefore, after entering from the bottom of the outer tank 21 in the tangential direction, the high-temperature steam is spirally moved upward in a ring shape along the inner wall of the outer tank 21 from the bottom, passes over the surface of the inner tank 22 in the rising process, and finally exits from the exhaust port 212.

In a further scheme, the inner tank 22 is further coaxially provided with a heating pipeline 4, one end of the steam pipeline 3 close to the heating tank 2 is bifurcated into two steam pipelines, one steam pipeline is led into an interlayer space between the outer tank 21 and the inner tank 22, the other steam pipeline penetrates into the inner tank 22 and is connected with the bottom end of the heating pipeline 4, and the top end of the heating pipeline 4 extends out of the inner tank 22. The high-temperature steam can directly reach the center of the asphalt through the heating pipeline 4, and the high-temperature steam is matched with the steam rising in an external spiral mode to heat the asphalt simultaneously from the inner direction and the outer direction, so that the heating efficiency and the heating uniformity of the asphalt are further improved.

In this embodiment, preferably, a return pipe 5 is further connected to the top of the heating pipe 4, and the return pipe 5 is connected to the exhaust port 212 and then extends into the steam generator 1. The reflux pipeline 5 is also connected with a heat exchanger 6, and a condensate water outlet of the heat exchanger 6 is communicated with the steam generator 1. The used steam with partial heat left can be recovered through the backflow pipeline 5, the heat of the steam is reused through the heat exchanger 6 and used for other purposes such as factory building heat supply, meanwhile, the condensate water is recycled again, and the resource utilization rate is improved.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims

1. An asphalt heating apparatus, characterized in that: the steam heating device comprises a steam generator and a heating tank which are arranged in parallel, wherein the heating tank comprises an inner tank body and an outer tank body which are coaxially sleeved, the inner tank body and the outer tank body are of conical barrel structures with diameters sequentially reduced from top to bottom, the top end surface and the bottom end surface of the inner tank body are coplanar, the top of the inner tank body is provided with a feed inlet communicated to the outside, the bottom of the inner tank body is provided with a discharge outlet, and the bottom of the outer tank body is provided with a water outlet; the steam generator is provided with a steam pipeline communicated to the heating tank, wherein the steam pipeline is provided with a steam pump, the steam pipeline is communicated to an interlayer space between the outer tank body and the inner tank body, the steam pipeline is connected to the bottom of the outer tank body along the tangential direction relative to the outer tank body, and the top of the outer tank body is correspondingly provided with an exhaust port along the tangential direction.

2. An asphalt heating apparatus as defined in claim 1, wherein: the inner tank body is also coaxially provided with heating pipelines, one end of each steam pipeline, which is close to the heating tank, is bifurcated into two steam pipelines, one steam pipeline is led into an interlayer space between the outer tank body and the inner tank body, the other steam pipeline penetrates into the inner tank body and is connected with the bottom end of each heating pipeline, and the top end of each heating pipeline extends out of the inner tank body.

3. An asphalt heating apparatus as defined in claim 2, wherein: and the top of the heating pipeline is also connected with a backflow pipeline which is communicated with the exhaust port and then extends into the steam generator.

4. A pitch heating apparatus as defined in claim 3, wherein: and the reflux pipeline is also connected with a heat exchanger, and a condensate water outlet of the heat exchanger is communicated with the steam generator.

5. An asphalt heating apparatus as defined in claim 1, wherein: the bottom of the heating tank is also provided with a supporting frame, and the heating tank is supported above the ground by the supporting frame, so that the material outlet and the water outlet are not blocked.

6. An asphalt heating apparatus as defined in claim 1, wherein: the bottom of the outer tank body is an inclined surface, and the water outlet is arranged at the lowest point of the inclined surface.