Asphalt storage tank

Abstract

The utility model discloses an asphalt storage tank which comprises a tank body, a mounting frame arranged in the tank body, a plurality of first heating coils arranged in the tank body and located outside the mounting frame, and a plurality of second heating coils arranged in the mounting frame, a feeding port is formed in the top of the tank body, the first heating coils are arranged in the vertical direction, and the second heating coils are arranged in the mounting frame. One side of the mounting frame extends to the inner side wall of the tank body, the second heating coils are arranged in the length direction of the mounting frame, a discharging port is formed in the side, close to the mounting frame, of the tank body, a discharging pipe is arranged on the discharging port, one end of the discharging pipe extends into the mounting frame, and an asphalt pump is arranged at the other end of the discharging pipe; the heating temperature of the second heating coil pipe is higher than that of the first heating coil pipe. According to the asphalt storage tank provided by the utility model, the asphalt is preheated by arranging the first heating coil pipe, and the local asphalt is secondarily heated by arranging the second heating coil pipe, so that the function of rapidly heating the local asphalt to a pumping state is realized, the heating time can be shortened, and the market demand is met.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt storage tank heating, and particularly relates to an asphalt storage tank. Background Art

[0002] Asphalt is in a solid state at normal temperature and is stored in an asphalt storage tank. At present, some large asphalt storage tanks are provided with heat-conducting oil trays at the bottom, and the heat-conducting oil trays are used to heat the asphalt at the bottom, so that the solid asphalt is converted into liquid asphalt, and finally it is pumped to the next process through an asphalt pump. Since the volume of the asphalt storage tank is large, it takes a long time to heat the solid asphalt to a state where the asphalt pump can pump it only by using a single-layer heat-conducting oil tray, which cannot meet the market demand.

[0003] It can be seen that the existing technology still needs to be improved. Content of the Utility Model

[0004] In view of the deficiencies of the above-mentioned existing technology, the purpose of the utility model is to provide an asphalt storage tank, aiming to solve the technical problem of long time consumption when heating the bottom layer of asphalt to the pumping state.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An asphalt storage tank includes a tank body, a mounting frame arranged in the tank body, a plurality of first heating coils arranged in the tank body and outside the mounting frame, and a plurality of second heating coils arranged in the mounting frame. The top of the tank body is provided with a feed inlet. The plurality of first heating coils are arranged vertically. One side of the mounting frame extends to the inner side wall of the tank body. The plurality of second heating coils are arranged along the length direction of the mounting frame. An outlet is arranged on one side of the tank body close to the mounting frame. A discharge pipe is arranged on the outlet. One end of the discharge pipe extends into the mounting frame, and the other end is provided with an asphalt pump. The heating temperature of the second heating coil is higher than that of the first heating coil.

[0007] Further, a pit is arranged at the bottom of the tank body, and the mounting frame is arranged in the pit.

[0008] Further, a plurality of discharge pipe sections are arranged on the discharge pipe close to the second heating coil.

[0009] Further, the first heating coil is arranged in a serpentine shape along the horizontal plane.

[0010] Further, the second heating coil includes a coil group. The coil group includes an oil inlet pipe, a plurality of serpentine coils, and an oil outlet pipe. The plurality of serpentine coils are arranged at equal intervals, and the serpentine coils are arranged vertically. Adjacent two serpentine coils are connected by a connecting pipe. The oil inlet pipe is connected to the serpentine coil at the head end, and the oil outlet pipe is connected to the serpentine coil at the tail end.

[0011] Further, there are two coil pipe groups, and the two coil pipe groups are arranged staggeredly, and the oil inlet pipe of one coil pipe group is arranged close to the oil outlet pipe of the other coil pipe group.

[0012] Further, the mounting rack is of a rectangular frame structure, and a plurality of horizontally arranged support beams are arranged inside the mounting rack, and the support beams are used for fixing the serpentine coil pipes.

[0013] Further, two symmetrically arranged inclined racks are arranged on the top of the mounting rack, and a third heating coil is arranged on each inclined rack, and the third heating coil is arranged in a serpentine shape along the plane where the inclined rack is located.

[0014] Further, a vent hole is arranged on the tank body.

[0015] Further, a heat insulation layer is arranged on the outer wall of the tank body.

[0016] Beneficial effects: The asphalt storage tank provided by the present utility model realizes the functions of preheating the asphalt located at the bottom of the tank body and secondary heating of the locally preheated asphalt by arranging a plurality of vertically arranged first heating coils in the tank body and a plurality of second heating coils arranged along its length direction in the mounting rack, and the heating temperature of the second heating coil is higher than that of the first heating coil, so that the local asphalt can be quickly heated to the pumping state, shortening the heating time and meeting the market demand. Description of the Drawings

[0017] Figure 1 It is a structural diagram of the asphalt storage tank provided by the present utility model.

[0018] Figure 2 It is a side sectional view of the asphalt storage tank provided by the present utility model.

[0019] Figure 3 It is a partial structural diagram of the asphalt storage tank provided by the present utility model.

[0020] Figure 4 It is a top sectional view of the asphalt storage tank provided by the present utility model.

[0021] Figure 5 It is a partial explosion diagram of the asphalt storage tank provided by the present utility model.

[0022] Figure 6 It is a structural diagram of the second heating coil in the asphalt storage tank provided by the present utility model.

[0023] Figure 7 It is a structural diagram of the coil pipe group in the asphalt storage tank provided by the present utility model.

[0024] Figure 8 It is a structural diagram of the U-shaped clamping strip in the asphalt storage tank provided by the present utility model.

[0025] Description of main component symbols: tank body 1, feed inlet 11, pit 12, vent hole 13, mounting rack 2, first heating coil 3, second heating coil 4, oil inlet pipe 41, serpentine coil 42, oil outlet pipe 43, connecting pipe 44, discharge pipe 5, asphalt pump 51, discharge pipe section 52, support beam 6, inclined frame 7, third heating coil 8, U-shaped clamping strip 9, flat part 91, stud part 92. Specific implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figure 1 、 2 As shown in FIGS. 5, the present invention provides an asphalt storage tank, including a tank body 1, a mounting rack 2 arranged in the tank body 1, a plurality of first heating coils 3 arranged in the tank body 1 and outside the mounting rack 2, and a plurality of second heating coils 4 arranged in the mounting rack 2. A feed inlet 11 is provided at the top of the tank body 1. The plurality of first heating coils 3 are arranged in the vertical direction. One side of the mounting rack 2 extends to the inner side wall of the tank body 1. The plurality of second heating coils 4 are arranged along the length direction of the mounting rack 2. An outlet is provided on one side of the tank body 1 close to the mounting rack 2. A discharge pipe 5 is provided at the outlet. One end of the discharge pipe 5 extends into the mounting rack 2, and the other end thereof is provided with an asphalt pump 51. The heating temperature of the second heating coil 4 is higher than that of the first heating coil 3.

[0028] In actual use, solid asphalt is put into the tank body 1 from the feed inlet 11 for storage. The asphalt stored at the bottom of the tank body 1 is preheated by a plurality of first heating coils 3, so that this part of the asphalt has a certain fluidity. Part of the asphalt will flow to the position where the mounting rack 2 is located. The plurality of second heating coils 4 further heat this part of the asphalt. Since the heating temperature of the second heating coil 4 is higher than that of the first heating coil 3, and the heating range of the second heating coil 4 is smaller than that of the first heating coil 3, the asphalt can quickly reach the state that can be transported by the asphalt pump 51. Finally, the asphalt pump 51 is started, and the liquid asphalt located in the mounting rack 2 is output through the discharge pipe 5. After part of the liquid asphalt is discharged, the asphalt near the first heating coil 3 will flow into the mounting rack 2 for the next round of heating. By setting the first heating coil 3 for preheating and setting the second heating coil 4 for local heating, the heating efficiency of part of the asphalt is improved, so that the asphalt can quickly reach the pumping state, shortening the heating time and meeting the market demand.

[0029] In the above description, the first heating coil 3 and the second heating coil 4 are both heated by heat transfer oil, and the purpose of heating the asphalt is achieved by heat exchange.

[0030] In order to achieve a heating temperature of the second heating coil 4 that is higher than the heating temperature of the first heating coil 3, the installation density of the second heating coil 4 is greater than the installation density of the first heating coil 3, so as to increase the heat exchange area to improve the heating efficiency, thereby allowing the asphalt near the second heating coil 4 to heat up quickly.

[0031] Optionally, the first heating coil 3 is connected to the second heating coil 4, so that the heat transfer oil passes through the second heating coil 4 and then enters the first heating coil 3. The residual heat of the heat transfer oil after one heat exchange is used to preheat the asphalt at the bottom of the tank body 1. The purpose of making the heating temperature of the second heating coil 4 higher than the heating temperature of the first heating coil 3 can also be achieved.

[0032] In a preferred embodiment, see Figure 2 The bottom of the tank body 1 is provided with a pit 12, and the mounting frame 2 is arranged in the pit 12. Optionally, the lower part of the mounting frame 2 is arranged in the pit 12. By setting the pit 12, it is beneficial for the asphalt heated by the first heating coil 3 to flow to the position where the mounting frame 2 is located, and it is beneficial for the asphalt heated by the second heating coil 4 to flow downward and finally be discharged through the discharge pipe 5. Since the fluidity of the asphalt heated by the second heating coil 4 is greater than the fluidity of the asphalt heated by the first heating coil 3, in the process of discharging asphalt, the asphalt heated by the second heating coil 4 will preferentially flow downward to the bottom of the pit 12, and be discharged through the discharge pipe 5 under the suction action of the asphalt pump 51.

[0033] In a preferred embodiment, see Figure 2 , 5 The discharge pipe 5 is provided with a plurality of discharge pipe sections 52 arranged near the second heating coil 4. Each second heating coil 4 is provided with two discharge pipe sections 52, and the two discharge pipe sections 52 are symmetrically arranged. The asphalt heated by the second heating coil 4 is collected into the discharge pipe 5 through the discharge pipe section 52 and discharged from the discharge pipe 5. Providing a plurality of discharge pipe sections 52 is conducive to discharging liquid asphalt.

[0034] In a preferred embodiment, see Figure 3 , 4 The first heating coil 3 is arranged in a serpentine shape along the horizontal plane to extend the flow path of the heat transfer oil in the first heating coil 3, thereby extending the heating time to achieve the purpose of preheating the asphalt.

[0035] Preferably, there are three groups of the first heating coils 3, and the three groups of the first heating coils 3 are arranged vertically. It should be noted that when the mounting frame 2 is located in the plane where any one of the first heating coils 3 is located, the first heating coil 3 should be arranged to bypass the mounting frame 2 to avoid the intersection of the first heating coil 3 and the second heating coil 4, thereby increasing the manufacturing difficulty.

[0036] It should be noted that the second heating coil 4 is located inside the first heating coil 3. On the one hand, after the asphalt heated by the second heating coil 4 is discharged, the asphalt heated by the first heating coil 3 quickly flows from the periphery of the mounting frame 2 to the position of the second heating coil 4; on the other hand, during the heating process, the asphalt heated by the first heating coil 3 surrounds the asphalt heated by the second heating coil 4 to reduce heat dissipation.

[0037] In a preferred embodiment, referring to Figure 5 , 6 , 7, the second heating coil 4 includes a coil group, and the coil group includes an oil inlet pipe 41, a plurality of serpentine coils 42, and an oil outlet pipe 43. The plurality of serpentine coils 42 are arranged at equal intervals, and the serpentine coils 42 are arranged vertically. Specifically, the height of the serpentine coil 42 matches the height of the mounting frame 2. Adjacent two serpentine coils 42 are connected by a connecting pipe 44. The oil inlet pipe 41 is connected to the serpentine coil 42 at the head end, and the oil outlet pipe 43 is connected to the serpentine coil 42 at the tail end. Through the above settings, the installation density of the second heating coil 4 in the mounting frame 2 is improved, thereby improving the heating efficiency of the asphalt and enabling the asphalt to quickly reach the pumping state.

[0038] Furthermore, there are two coil groups, and the two coil groups are arranged staggeredly, and the oil inlet pipe 41 of one coil group is arranged close to the oil outlet pipe 43 of the other coil group. As Figure 6 shown, the oil inlet direction of one coil group is a1, and the oil outlet direction of this coil group is a2; the oil inlet direction of the other coil group is b1, and the oil outlet direction of the other coil group is b2; through the above settings, the heating temperatures on both sides of one second heating coil 4 are the same to achieve uniform heating of the asphalt.

[0039] It should be noted additionally that multiple groups of the second heating coils 4 are arranged along the length direction of the mounting frame 2. Therefore, in actual operation, the number of the second heating coils 4 should be set according to the length of the mounting frame 2.

[0040] In a preferred embodiment, referring to Figure 5 , 8, the mounting frame 2 is a rectangular frame structure, which can ensure the stability of the installation of multiple second heating coils 4 on the one hand, and facilitate the inflow of preheated asphalt into the range of the mounting frame 2 on the other hand. A number of horizontally arranged support beams 6 are provided in the mounting frame 2, and the support beams 6 are used to fix the serpentine coil 42. Specifically, it further includes a U-shaped strip 9, the U-shaped strip 9 is sleeved on the vertical part of the serpentine coil 42, and both ends of the U-shaped strip 9 pass through the support beam 6 and are connected with nuts respectively to fix the serpentine coil 42.

[0041] To further improve the stability of the installation of the serpentine coil 42, the U-shaped strip 9 includes a flat part 91 and a stud part 92. The flat part 91 is bent into an arc shape so that the flat part 91 fits against the wall of the serpentine coil 42. Two stud parts 92 are respectively fixed at both ends of the flat part 91, and the stud parts 92 pass through the support beam 6 and are threadedly connected with nuts.

[0042] Optionally, the support beam 6 is a C-shaped channel steel to improve the structural strength of the support beam 6.

[0043] Similarly, a fixing frame is provided at the bottom of the tank body 1, and the fixing frame can fix the first heating coil 3 through a U-shaped strip, and the fixing frame is not drawn in the attached drawings.

[0044] In a preferred embodiment, referring to Figure 5 , two symmetrically arranged inclined frames 7 are provided at the top of the mounting frame 2. By providing the two inclined frames 7, the structural stability of the mounting frame 2 is improved. A third heating coil 8 is provided on each inclined frame 7, and the third heating coil 8 is arranged in a serpentine shape along the plane where the inclined frame 7 is located. It plays a role in heating the asphalt located at the top of the mounting frame 2, so that the asphalt at this position has better fluidity, which is convenient for the asphalt to flow downward, and is heated by the second heating coil 4.

[0045] In the above, the third heating coils 8 are all heated by heat-conducting oil, and heat exchange is used to achieve the purpose of heating asphalt. The first heating coil 3, the second heating coil 4 and the third heating coils 8 are all externally connected to a heat-conducting oil boiler, so that the heat-conducting oil with a high temperature is continuously transported to the first heating coil 3, the second heating coil 4 and the third heating coils 8 to ensure the heating capacity of each heating coil.

[0046] In a preferred embodiment, referring to Figure 1 , a ventilation hole 13 is provided on the tank body 1, and the ventilation hole 13 is externally connected to an exhaust gas treatment system. The ventilation hole 13 is located at the top of the tank body 1. During the heating of asphalt, hot air will be generated in the tank body 1, and the hot air is discharged to the exhaust gas treatment system through the ventilation hole 13 to avoid damage to the wall of the tank body 1 due to excessive air pressure in the tank body 1, and to avoid polluting the environment by directly discharging the hot air into the atmosphere.

[0047] In a preferred embodiment, a heat insulation layer is provided on the outer wall of the tank body 1. The heat insulation layer includes rock wool and color plates coated outside the rock wool to achieve good heat insulation effects. The color plates are used to protect the rock wool.

[0048] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solution and the inventive concept of the present invention, and all such changes or substitutions should fall within the protection scope of the present invention.

Claims

1. An asphalt storage tank, characterized in that, It includes a tank body, a mounting frame arranged inside the tank body, several first heating coils arranged inside the tank body and outside the mounting frame, and several second heating coils arranged inside the mounting frame. The top of the tank body is provided with a feed inlet. The several first heating coils are arranged vertically. One side of the mounting frame extends to the inner side wall of the tank body. The several second heating coils are arranged along the length direction of the mounting frame. A discharge outlet is provided on one side of the tank body close to the mounting frame. A discharge pipe is provided on the discharge outlet. One end of the discharge pipe extends into the mounting frame, and the other end is provided with an asphalt pump. The heating temperature of the second heating coils is higher than that of the first heating coils.

2. The asphalt storage tank according to claim 1, characterized in that, A pit is provided at the bottom of the tank body, and the mounting frame is arranged in the pit.

3. The asphalt storage tank according to claim 1, wherein Several discharge pipe segments are provided on the discharge pipe and are arranged close to the second heating coils.

4. The asphalt storage tank according to claim 1, wherein The first heating coils are arranged in a serpentine shape along the horizontal plane.

5. The asphalt storage tank according to claim 1, characterized in that, The second heating coils include a coil group. The coil group includes an oil inlet pipe, several serpentine coils, and an oil outlet pipe. The several serpentine coils are arranged at equal intervals, and the serpentine coils are arranged vertically. Adjacent two serpentine coils are connected by a connecting pipe. The oil inlet pipe is connected to the serpentine coil at the head end, and the oil outlet pipe is connected to the serpentine coil at the tail end.

6. The asphalt storage tank according to claim 5, characterized in that, There are two coil groups, and the two coil groups are arranged staggeredly, and the oil inlet pipe of one coil group is arranged close to the oil outlet pipe of the other coil group.

7. The asphalt storage tank according to claim 5, characterized in that, The mounting frame is of a rectangular frame structure, and several horizontally arranged support beams are provided inside the mounting frame. The support beams are used to fix the serpentine coils.

8. The asphalt storage tank according to claim 1, characterized in that, Two symmetrically arranged inclined frames are provided at the top of the mounting frame. A third heating coil is provided on each inclined frame. The third heating coils are arranged in a serpentine shape along the plane where the inclined frames are located.

9. The asphalt storage tank according to claim 1, characterized in that A ventilation hole is provided on the tank body.

10. The asphalt storage tank according to claim 1, characterized in that, A heat insulation layer is provided on the outer wall of the tank body.

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