Rapid heating system for matrix asphalt

Abstract

The utility model relates to the technical field of matrix asphalt processing, in particular to a rapid matrix asphalt heating system which comprises a heating tank, supporting legs are fixed to the two sides of the bottom end of the outer wall of the heating tank, a steam box is arranged on the right side of the heating tank, and a preheating component for preheating matrix asphalt is arranged above the left side of the steam box. According to the utility model, the matrix asphalt to be fed can be temporarily stored in the heating pipe, the high-temperature steam generated in the steam box can preheat and heat the matrix asphalt through the heating pipe, and the subsequent matrix asphalt can enter the heating tank, so that the matrix asphalt can be heated, and the matrix asphalt can be heated. And the heating tank can rapidly heat the matrix asphalt through cooperation of the heating coil, the bottom heater and the high-temperature steam, so that the heating efficiency of the matrix asphalt can be improved.

Description

Technical Field

[0001] This utility model relates to the field of base asphalt processing technology, and specifically to a rapid heating system for base asphalt. Background Technology

[0002] Base bitumen is a viscous liquid obtained during petroleum refining, primarily composed of various high-molecular-weight hydrocarbons. Base bitumen is commonly used in building materials, road construction, and other industrial applications, especially in the production of asphalt mixtures.

[0003] When using base asphalt as a road construction material, workers often need to mix asphalt with aggregates to make asphalt concrete. Asphalt needs to be heated before use. Currently, base asphalt is mostly heated directly by workers using heating tanks. However, asphalt has low heat conduction efficiency, which means that the heating tank has limited effect on heating a large amount of base asphalt at one time. This results in the base asphalt heating up slowly and time-consuming, thus having certain shortcomings.

[0004] In conclusion, it is necessary to invent a rapid heating system for base asphalt. Utility Model Content

[0005] To address this issue, this invention provides a rapid heating system for base asphalt, which solves the problem that the low heat conduction efficiency of asphalt results in limited heating effect when a heating tank heats a large amount of base asphalt at once, leading to slow and time-consuming heating of the base asphalt.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rapid heating system for base asphalt, comprising a heating tank, with support legs fixed on both sides of the bottom of the outer wall of the heating tank, a steam box arranged on the right side of the heating tank, a preheating component for preheating the base asphalt arranged on the upper left side of the steam box, and a heating component for heating the base asphalt arranged inside the heating tank.

[0007] Preferably, the exhaust end on the left side of the outer wall of the steam box is connected to a conversion seat via a pipe, the end of the conversion seat near the heating tank is connected to a second air inlet pipe, and the top of the inner wall of the conversion seat is connected to a first air inlet pipe.

[0008] Preferably, the preheating component includes a support frame, with a pillar fixed to the bottom of the outer wall of the support frame, the support frame being arranged in a stepped manner, and an insulation box being provided at the top of the outer wall of the support frame.

[0009] Preferably, both ends of the inner wall of the insulation box are equipped with outer sleeves, the right side of the outer wall of the rightmost insulation box is connected to a feed pipe, and a discharge pipe is connected between two adjacent outer sleeves. Each discharge pipe is fixed with a solenoid valve, and the left end of the leftmost insulation box is connected to the top right side of the inner wall of the heating tank through the discharge pipe.

[0010] Preferably, the inner wall of the outer cover is fixed with a heating tube, the outer wall of the heating tube is provided with a spiral air inlet groove, the upper end of the first air inlet tube is connected to the right side of the bottom end of the inner wall of the outer cover, the top left side of the outer wall of the outer cover is provided with an air outlet, and the top of the inner wall of the heat preservation box is provided with a ventilation groove.

[0011] Preferably, the heating component includes a heating coil, which is arranged around the inner wall side of the heating tank, and bottom heaters for heating are fixed on both sides of the bottom of the inner wall of the heating tank.

[0012] Preferably, hollow spiral stirring blades are rotatably connected to the top of the inner wall of the heating tank. The hollow spiral stirring blades have a hollow structure, and the bottom end of the hollow spiral stirring blades is rotatably connected to the bottom end of the inner wall of the heating tank.

[0013] Preferably, the end of the second air inlet pipe away from the conversion seat is connected to the bottom of the inner wall of the hollow spiral stirring blade. An exhaust hole is provided at the upper end of the hollow spiral stirring blade and on the outer side of the top of the outer wall of the heating tank. A stirring motor is installed at the top of the outer wall of the heating tank and at the position corresponding to the hollow spiral stirring blade. The bottom output shaft of the stirring motor is fixedly connected to the top of the hollow spiral stirring blade.

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

[0015] In this invention, the base asphalt to be added is temporarily stored in the heating pipe, while the high-temperature steam generated in the steam box preheats the base asphalt through the heating pipe. Subsequently, the base asphalt can enter the heating tank, which can rapidly heat the base asphalt through the combination of the heating coil, bottom heater and high-temperature steam, thereby improving the heating efficiency of the base asphalt and making it more convenient for personnel to use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention from the front view.

[0017] Figure 2 This is a cross-sectional view of the heating tank in this utility model from the front view.

[0018] Figure 3 This is a cross-sectional view of the insulation box in this utility model from the front view.

[0019] Figure 4 This is a schematic diagram of the explosion-proof structure of the outer sleeve and heating tube in this utility model.

[0020] In the diagram: 100, heating tank; 110, stirring motor; 120, hollow spiral stirring blade; 130, heating coil; 131, bottom heater; 200, support frame; 210, first air inlet pipe; 220, insulation box; 221, discharge pipe; 230, steam box; 240, conversion seat; 241, second air inlet pipe; 250, outer sleeve; 251, heating tube; 252, spiral air inlet groove. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0022] See attached document Figure 1-4 This utility model provides a rapid heating system for base asphalt, including a heating tank 100. Support legs are fixed to both sides of the bottom of the outer wall of the heating tank 100. A steam box 230 is provided on the right side of the heating tank 100. The steam box 230 is provided to generate high-temperature steam, thereby heating the base asphalt. A conversion seat 240 is connected to the exhaust end of the outer wall of the steam box 230 via a pipe. A second air inlet pipe 241 is connected to the end of the conversion seat 240 near the heating tank 100. A first air inlet pipe 210 is connected to the top of the inner wall of the conversion seat 240. The conversion seat 240 is provided to divert the high-temperature steam, allowing it to be delivered to the insulation box 220 and the heating tank 100 respectively through the first air inlet pipe 210 and the second air inlet pipe 241.

[0023] A preheating component for preheating the base asphalt is installed on the upper left side of the steam box 230. The preheating component includes a support frame 200, with pillars fixed to the bottom of the outer wall of the support frame 200. The support frame 200 is stepped, designed to support multiple insulation boxes 220. The stepped design creates a height difference between the insulation boxes 220, allowing the base asphalt to flow between the support frames and ultimately enter the heating tank 100 for heating. The top of the outer wall of the support frame 200 is equipped with a heat exchanger. The heat exchange chamber 220 has outer sleeves 250 installed at both ends of its inner wall. These outer sleeves 250 are for heat exchange between steam and the base asphalt, thus raising the temperature of the base asphalt. A feed pipe is connected to the right side of the outer wall of the rightmost heat exchange chamber 220, allowing personnel to add the base asphalt to be heated into the heat exchange chamber 220. A discharge pipe 221 connects adjacent outer sleeves 250, and each discharge pipe 221 is equipped with a solenoid valve. These solenoid valves are used to control the temperature of the base asphalt. The flow discharge pipe 221 causes obstruction. The left end of the leftmost insulation box 220 is connected to the top right side of the inner wall of the heating tank 100 through the discharge pipe 221. Heating pipes 251 are fixed to the inner wall of the outer sleeve 250. The outer wall of the heating pipe 251 is provided with a spiral air inlet groove 252. The heating pipe 251 is designed to store the base asphalt. In order to facilitate the flow of the base asphalt, the inner walls of both the heating pipe 251 and the discharge pipe 221 can be provided with a layer of alumina ceramic to reduce the friction between them and the base asphalt. The air inlet groove 252 is designed to allow hot steam to flow around the outer wall of the heating pipe 251, enabling the steam to exchange heat with the base asphalt. The outer sleeve 250 can seal the outer end of the spiral air inlet groove 252 to ensure the heat exchange effect between the base asphalt and the hot steam. The upper end of the first air inlet pipe 210 is connected to the bottom right side of the inner wall of the outer sleeve 250. An air outlet is provided on the top left side of the outer wall of the outer sleeve 250. A ventilation groove is provided on the top of the inner wall of the insulation box 220. The air outlet and ventilation groove are used to discharge the steam used for heat exchange.

[0024] The heating tank 100 is equipped with a heating component for heating the base asphalt. The heating component includes a heating coil 130, which is arranged around the inner wall of the heating tank 100. The heating coil 130 is a resistance wire heating tube, capable of heating the upper part of the inner wall of the heating tank 100 after power is applied. Bottom heaters 131 are fixed to both sides of the bottom of the inner wall of the heating tank 100 to heat the bottom of the heating tank 100 after power is applied. Hollow spiral stirring blades 120 are rotatably connected to the top of the inner wall of the heating tank 100. The hollow spiral stirring blades 120 have a hollow structure, and their bottom ends are rotatably connected to the bottom of the inner wall of the heating tank 100. The hollow spiral stirring blades 120 can agitate the base asphalt during rotation. The second air inlet pipe 241, located away from the conversion seat 240, is connected to the bottom of the inner wall of the hollow spiral mixing blade 120. An exhaust port is provided at the upper end of the hollow spiral mixing blade 120, located on the outer side of the top of the outer wall of the heating tank 100. A mixing motor 110 is installed at the top of the outer wall of the heating tank 100, corresponding to the position of the hollow spiral mixing blade 120. The bottom output shaft of the mixing motor 110 is fixedly connected to the top of the hollow spiral mixing blade 120. The second air inlet pipe 241 can deliver hot steam to the interior of the hollow spiral mixing blade 120, allowing the hollow spiral mixing blade 120 to both mix and heat the base asphalt. The steam after heat exchange can be discharged through the exhaust port on the hollow spiral mixing blade 120.

[0025] The usage process of this utility model is as follows: First, personnel can add matrix asphalt into the outer sleeve 250 through the feed pipe, and the asphalt matrix will enter the heating tank 100 through the discharge pipe 221. After the addition is completed, personnel can close the solenoid valve of the discharge pipe 221 connected to the heating tank 100, and the matrix asphalt that continues to be transported will be temporarily stored in the heating pipe 251. After a certain amount is added, the transport of matrix asphalt will be stopped.

[0026] Simultaneously, personnel can power on the mixing motor 110, which drives the hollow spiral mixing blade 120 to rotate. The heating coil 130 and bottom heater 131 can be powered on to heat the base asphalt. The rotating hollow spiral mixing blade 120 can mix the base asphalt. At the same time, the steam box 230 can heat and generate high-temperature steam. The generated high-temperature steam will be transported to the conversion seat 240 through the air pump. Part of the steam will enter the spiral air inlet groove 252 through the first air inlet pipe 210, so that the high-temperature steam can preheat the base asphalt through the heating pipe 251. The other part of the high-temperature steam will enter the hollow spiral mixing blade 120 through the second air inlet pipe 241, so that the hollow spiral mixing blade 120 can also heat the base asphalt during the mixing process. The heated steam can be discharged through the exhaust pipe connected to the bottom of the heating tank 100. The preheated base asphalt will continue to flow into the heating tank 100 for further heating.

[0027] In this invention, personnel can monitor the temperature of the base asphalt by setting a temperature sensor, and the optimal amount of base asphalt added to the heating pipe 251 can be determined by personnel through multiple experiments.

[0028] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A rapid heating system for base asphalt, comprising a heating tank (100), wherein support legs are fixed on both sides of the bottom of the outer wall of the heating tank (100), and a steam box (230) is provided on the right side of the heating tank (100), characterized in that: A preheating component for preheating the base asphalt is provided on the upper left side of the steam box (230). The preheating component includes a support frame (200). The bottom of the outer wall of the support frame (200) is fixed with a pillar. The support frame (200) is arranged in a stepped shape. The top of the outer wall of the support frame (200) is provided with a heat preservation box (220). The inner walls of the heat preservation box (220) are equipped with outer sleeves (250) at both ends. The right side of the outer wall of the rightmost heat preservation box (220) is connected to a feed pipe. A discharge pipe (221) is connected between two adjacent outer sleeves (250). A solenoid valve is fixed on each discharge pipe (221). The left side of the leftmost heat preservation box (220) is connected to the left side of the heat preservation box (220). The end is connected to the right side of the top of the inner wall of the heating tank (100) through the discharge pipe (221). The heating tank (100) is equipped with a heating component for heating the base asphalt. The heating component includes a heating coil (130). The heating coil (130) is arranged around the inner wall of the heating tank (100). Bottom heaters (131) for heating are fixed on both sides of the bottom of the inner wall of the heating tank (100). Hollow spiral stirring blades (120) are rotatably connected to the top of the inner wall of the heating tank (100). The hollow spiral stirring blades (120) have a hollow structure. The bottom end of the hollow spiral stirring blades (120) is rotatably connected to the bottom end of the inner wall of the heating tank (100).

2. The rapid heating system for base asphalt according to claim 1, characterized in that: The outer left side of the steam box (230) is connected to a conversion seat (240) via a pipe. The end of the conversion seat (240) near the heating tank (100) is connected to a second air inlet pipe (241), and the top of the inner wall of the conversion seat (240) is connected to a first air inlet pipe (210).

3. The rapid heating system for base asphalt according to claim 2, characterized in that: Heating tubes (251) are fixed to the inner wall of the outer sleeve (250). The outer wall of the heating tube (251) is provided with a spiral air inlet groove (252). The upper end of the first air inlet pipe (210) is connected to the right side of the bottom end of the inner wall of the outer sleeve (250). An air outlet is provided on the left side of the top end of the outer wall of the outer sleeve (250). A ventilation groove is provided on the top end of the inner wall of the heat preservation box (220).

4. The rapid heating system for base asphalt according to claim 2, characterized in that: The end of the second air inlet pipe (241) away from the conversion seat (240) is connected to the bottom of the inner wall of the hollow spiral stirring blade (120). An exhaust hole is provided at the upper end of the hollow spiral stirring blade (120) and on the outer side of the top of the outer wall of the heating tank (100). A stirring motor (110) is installed at the top of the outer wall of the heating tank (100) and at the position corresponding to the hollow spiral stirring blade (120). The bottom output shaft of the stirring motor (110) is fixedly connected to the top of the hollow spiral stirring blade (120).

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