Heat-conducting oil furnace for asphalt production

Abstract

The utility model discloses a heat-conducting oil furnace for asphalt production, which comprises a heat-insulating barrel, a support frame fixed at the bottom of the heat-insulating barrel, a feed pipe arranged at the top of the heat-insulating barrel, a discharge pipe arranged at the bottom of the heat-insulating barrel, a valve arranged between the discharge pipe and the heat-insulating barrel, a rotating component arranged at the top of the heat-insulating barrel, and a heating barrel fixed inside the heat-insulating barrel, a heating assembly is arranged at the bottom of the heating barrel and comprises a flow dividing bin arranged on the lower side of the heating barrel. The asphalt heating device has the beneficial effects that through the arrangement of the heating assembly and the rotating assembly, during heating, the multiple sets of heating pipes evenly distributed on the outer side of the heating barrel can rapidly transfer heat to the heating barrel, so that asphalt in the heating barrel is heated more rapidly, and the rotating assembly rotates to drive the center position and the surrounding asphalt to rotate to generate position changes; the asphalt is uniformly heated, the phenomena that the asphalt on the barrel wall is excessively heated and the asphalt in the center cannot meet the heating requirement are avoided, the heating time is shortened, and the asphalt heating quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt production, in particular to a heat-conducting oil furnace for asphalt production. Background Technique

[0002] Asphalt is a kind of petroleum substance, which is a black viscous substance formed after petroleum is processed, pyrolyzed or oxidized. Asphalt is one of the high-molecular-weight components in petroleum. Like natural gas and petroleum crude oil, it is formed by organic matter through geological processes. Asphalt can be mainly divided into three types: coal tar asphalt, petroleum asphalt and natural asphalt. Among them, coal tar asphalt is a by-product of coking. Petroleum asphalt is the residue after crude oil distillation. Natural asphalt is stored underground, and some form ore layers or accumulate on the earth's crust surface. Asphalt is mainly used in industries such as coatings, plastics, rubber, etc. and for paving roads.

[0003] After retrieval, the Chinese patent publication number is CN214891860U, which discloses a heat-conducting oil furnace for asphalt production, including a furnace shell. The top surface and side surface of the furnace shell are respectively provided with a feed pipe and a discharge pipe. The side surface of the furnace shell includes an inner shell and an outer shell. An oil pump, a heater and pipelines are arranged in the interlayer between the inner shell and the outer shell; a stirring mechanism is arranged at the bottom of the furnace shell. The stirring mechanism includes a driving motor, a transmission component, a stirring shaft and a stirring disc. The stirring disc is arranged at the bottom of the inner shell, and the side surface of the stirring disc abuts against the inner side surface of the inner shell. A plurality of stirring rods are arranged on the top of the stirring disc; pipelines are arranged between the interlayers of the inner shell and the outer shell to heat the inner shell, so as to transfer heat to the inner shell and then evenly heat the asphalt in the inner shell. At the same time, the smooth inner wall of the inner shell is not easy to adhere to asphalt; the stirring disc and stirring rods arranged at the bottom of the inner shell can not only stir the asphalt inside the inner shell, but also transfer the heat on the inner shell, and the stirring rods can further heat the asphalt.

[0004] The above patent can heat the asphalt and carry out a certain degree of stirring. However, the oil path is too long. When the oil flows to the end of the heating pipe, it has already cooled down and cannot heat the asphalt at the end, which easily leads to uneven heating temperatures of the asphalt at different positions. The stirring rods can only stir in a circle around it. For the place where the least heat is absorbed, that is, the central part of the furnace body, there is no stirring, which easily results in too large a temperature difference between the barrel wall and the central part, and the heating quality does not meet the standard. Content of the Utility Model

[0005] The purpose of the utility model is to provide a heat-conducting oil furnace for asphalt production to solve the above problems.

[0006] The utility model realizes the above purpose through the following technical solutions:

[0007] A heat-conducting oil furnace for asphalt production, comprising a heat-insulating barrel, a support frame is fixed at the bottom of the heat-insulating barrel, a feed pipe is arranged at the top of the heat-insulating barrel, a discharge pipe is arranged at the bottom of the heat-insulating barrel, a valve is arranged between the discharge pipe and the heat-insulating barrel, a rotating assembly is arranged at the top of the heat-insulating barrel, a heating barrel is fixed inside the heat-insulating barrel, a heating assembly is arranged at the bottom of the heating barrel, the heating assembly includes a shunt bin arranged on the lower side of the heating barrel, oil outlet pipes are arranged in a circumferential distribution on the outer side of the shunt bin, a heating bin is arranged on the lower side of the shunt bin, oil inlet pipes are arranged in a circumferential distribution on the outer side of the heating bin, an oil pump is arranged between the shunt bin and the heating bin, the oil outlet pipes and the oil inlet pipes are fixedly connected through heating pipes coated on the outer wall of the heating barrel, resistance wires are arranged on the outer side and the bottom of the heating bin.

[0008] Preferably, the rotating assembly includes a motor fixed on a fixed frame at the top of the heating barrel, a rotating shaft is fixed at the output end of the motor, a driving wheel is arranged on the rotating shaft, transmission shafts penetrating through the top of the heating barrel are arranged on both sides of the rotating shaft, a driven wheel is arranged on the transmission shaft, the driving wheel and the driven wheel are connected by a belt, and stirring plates are fixed on the transmission shaft.

[0009] Preferably, the resistance wires are arranged in a spiral shape on the outer side of the heating bin and in a vortex shape on the bottom of the heating bin.

[0010] Preferably, the transmission shaft is rotatably connected to the heating barrel, and the rotating shaft is rotatably connected to the heating barrel.

[0011] Preferably, the driving wheel and the driven wheel are of the same size, the stirring plates are arranged on the transmission shaft in a cross arrangement, and a plurality of flow holes are arranged on the stirring plates.

[0012] The beneficial effects are as follows: Through the arrangement of the heating assembly and the rotating assembly, during heating, multiple groups of heating pipes evenly distributed on the outer side of the heating barrel can quickly transfer heat to the heating barrel, so that the asphalt in the heating barrel is heated faster. The rotation of the rotating assembly drives the asphalt at the central position and around to rotate and change positions, making the asphalt heated evenly, avoiding excessive heating of the asphalt on the barrel wall and the failure of the asphalt at the central part to meet the heating requirements, shortening the heating time, and improving the heating quality of the asphalt.

[0013] The additional technical features and their advantages of the present utility model will be more clearly elaborated in the following description content, or can be understood through the specific practice of the present utility model. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 is a three-dimensional structural schematic diagram of a heat-conducting oil furnace for asphalt production according to the present utility model;

[0016] Figure 2 is a right view of a heat-conducting oil furnace for asphalt production according to the present utility model;

[0017] Figure 3 is an internal structural schematic diagram of a heat-conducting oil furnace for asphalt production according to the present utility model;

[0018] Figure 4 is a sectional view of a heat-conducting oil furnace for asphalt production according to the present utility model.

[0019] Explanation of reference numerals is as follows: 101, heat preservation barrel; 102, support frame; 103, heating barrel; 104, feed pipe; 105, discharge pipe; 106, valve; 201, motor; 202, driving wheel; 203, driven wheel; 204, transmission shaft; 205, stirring plate; 206, rotating shaft; 301, oil pump; 302, heating chamber; 303, shunt chamber; 304, oil outlet pipe; 305, oil inlet pipe; 306, resistance wire; 307, heating pipe. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0021] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0022] The present utility model will be further described below in conjunction with the accompanying drawings:

[0023] Such as Figures 1 - 4As shown in the figure, a heat-conducting oil furnace for asphalt production includes a heat preservation barrel 101. A support frame 102 is fixed at the bottom of the heat preservation barrel 101. A feed pipe 104 is arranged at the top of the heat preservation barrel 101. A discharge pipe 105 is arranged at the bottom of the heat preservation barrel 101. A valve 106 is arranged between the discharge pipe 105 and the heat preservation barrel 101. A rotating assembly is arranged at the top of the heat preservation barrel 101. A heating barrel 103 is fixed inside the heat preservation barrel 101. A heating assembly is arranged at the bottom of the heating barrel 103. The heating assembly includes a flow distribution chamber 303 arranged below the heating barrel 103. Oil outlet pipes 304 are arranged in a circumferential distribution on the outer side of the flow distribution chamber 303. A heating chamber 302 is arranged below the flow distribution chamber 303. Oil inlet pipes 305 are arranged in a circumferential distribution on the outer side of the heating chamber 302. An oil pump 301 is arranged between the flow distribution chamber 303 and the heating chamber 302. The oil outlet pipes 304 and the oil inlet pipes 305 are fixedly connected through a heating pipe 307 wrapped on the outer wall of the heating barrel 103. Resistance wires 306 are arranged on the outer side and the bottom of the heating chamber 302. The resistance wires 306 are arranged in a spiral shape on the outer side of the heating chamber 302 and in a vortex shape on the bottom of the heating chamber 302, which can heat the oil. The asphalt in the heating barrel 103 can be heated through the heating pipe 307.

[0024] In this embodiment, the rotating assembly includes a motor 201 fixed on a fixed frame at the top of the heating barrel 103. A rotating shaft 206 is fixed at the output end of the motor 201. The rotating shaft 206 is rotatably connected to the heating barrel 103. A driving wheel 202 is arranged on the rotating shaft 206. Transmission shafts 204 penetrating through the top of the heating barrel 103 are arranged on both sides of the rotating shaft 206. The transmission shafts 204 are rotatably connected to the heating barrel 103. Driven wheels 203 are arranged on the transmission shafts 204. The driving wheel 202 and the driven wheels 203 are connected by a belt. The driving wheel 202 and the driven wheels 203 are of the same size. Stirring plates 205 are fixed on the transmission shafts 204. The stirring plates 205 are arranged on the transmission shafts 204 in a cross arrangement. A number of flow holes are arranged on the stirring plates 205. The stirring plates 205 can stir the asphalt to make the asphalt heated evenly. The melted asphalt can flow through the flow holes, increasing the heating efficiency.

[0025] Working principle: During use, asphalt enters the heating barrel 103 from the feed pipe 104. The resistance wire 306 starts heating the oil in the heating chamber 302. The oil pump 301 is started, and the hot oil in the heating chamber 302 is pumped into the shunt chamber 303 through the oil pump 301. The hot oil is extruded out of the shunt chamber 303 and enters the outlet pipe 304. The heated oil returns to the heating chamber 302 again through the outlet pipe 304, the heating pipe 307, and the inlet pipe 305. When the hot oil is in the heating pipe 307, it exchanges temperature with the heating barrel 103, causing the temperature of the heating barrel 103 to rise and heating the asphalt in the heating barrel 103. To improve the problem of uneven heating, a rotating assembly is provided. When the oil pump 301 is started, the motor 201 is started. The motor 201 drives the transmission shaft 204 to rotate through the driving wheel 202 and the driven wheel 203. The transmission shaft 204 drives the stirring plate 205 to stir the asphalt in the heating barrel 103. The rotation of the stirring plate 205 drives the asphalt on the barrel wall and in the central part to flow, making it easier to heat the asphalt in the central part and ensuring that the asphalt in the barrel is evenly heated. There will be no phenomenon where the asphalt on the barrel wall has melted while the central part has not reached the required temperature, resulting in the existence of asphalt particles. After heating is completed, the valve 106 is opened, and the heated asphalt flows out from the discharge pipe 105.

[0026] The above shows and describes the basic principle, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat transfer oil furnace for asphalt production, comprising a heat preservation barrel (101), a support frame (102) being fixed to the bottom of the heat preservation barrel (101), characterized in that: A feeding pipe (104) is arranged at the top of the heat-insulating barrel (101), a discharging pipe (105) is arranged at the bottom of the heat-insulating barrel (101), a valve (106) is arranged between the discharging pipe (105) and the heat-insulating barrel (101), a rotating assembly is arranged at the top of the heat-insulating barrel (101), a heating barrel (103) is fixed inside the heat-insulating barrel (101), a heating assembly is arranged at the bottom of the heating barrel (103), and the heating assembly comprises a diversion bin (303) arranged at the lower side of the heating barrel (103), and the diversion bin (303) ) is provided with oil outlet pipes (304) in a circumferential distribution on the outside of the diverter chamber (303), a heating chamber (302) is provided at the lower side of the diverter chamber (303), an oil inlet pipe (305) is provided in a circumferential distribution on the outside of the heating chamber (302), an oil pump (301) is provided between the diverter chamber (303) and the heating chamber (302), the oil outlet pipe (304) and the oil inlet pipe (305) are fixedly connected via a heating pipe (307) coated on the outer wall of the heating barrel (103), and a resistance wire (306) is provided on the outside and bottom of the heating chamber (302).

2. A thermal oil furnace for asphalt production according to claim 1, characterized in that: The rotating assembly comprises a motor (201) fixed to a fixing frame at the top of the heating barrel (103); a rotating shaft (206) is fixed to the output end of the motor (201); a driving wheel (202) is arranged on the rotating shaft (206); transmission shafts (204) penetrating the top of the heating barrel (103) are arranged on both sides of the rotating shaft (206); a driven wheel (203) is arranged on the transmission shaft (204); the driving wheel (202) is connected to the driven wheel (203); and a stirring plate (205) is fixed on the transmission shaft (204).

3. The thermal oil furnace for asphalt production according to claim 1, characterized in that: The resistance wire (306) is arranged in a spiral shape on the outside of the heating chamber (302), and the resistance wire (306) is arranged in a vortex shape at the bottom of the heating chamber (302).

4. A thermal oil furnace for asphalt production according to claim 2, characterized in that: The transmission shaft (204) is rotationally connected to the heating barrel (103), and the rotating shaft (206) is rotationally connected to the heating barrel (103).

5. A thermal oil furnace for asphalt production according to claim 2, characterized in that: The driving wheel (202) and the driven wheel (203) are of the same size, the stirring plates (205) are cross-arranged on the transmission shaft (204), and a plurality of flow holes are provided on the stirring plates (205).

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