A solid block asphalt rapid melting device

Abstract

The present invention discloses a solid block asphalt rapid melting device, including a device body with an internal cavity, a material hoist installed above the top of the device body, a material drop port provided on the top surface of the device body, a solid block asphalt constant temperature thermal cutting system installed in the material drop port, the material hoist can transport the solid block asphalt to the material drop port, the solid block asphalt is cut by the solid block asphalt constant temperature thermal cutting system and directly falls into the internal cavity of the device body; a horizontal stirring and dispersing system and an asphalt heating and melting system are installed in the internal cavity of the device body, the asphalt heating and melting system is located below the horizontal stirring and dispersing system and is connected to a smoke exhaust system. The device of the present invention effectively solves the problems of uneven heating of block asphalt, slow melting speed and high energy consumption, and also prevents the asphalt from being heated repeatedly, which has the effect of preventing asphalt from aging.

Description

Technical Field

[0001] The invention relates to the technical field of building material production, and more specifically to a device for rapidly melting solid block asphalt. Background Art

[0002] Asphalt has the physical property of being solid at room temperature and liquid at high temperature. Solid asphalt is difficult to melt and inconvenient to use, so asphalt is generally melted into liquid asphalt at high temperature in advance and then transported to the place of use by a specific asphalt transporter. Asphalt transporters are covered with iron sheets and lined with high-tech insulation materials. They have a long insulation time. Heating pipes are installed in the tank to conduct heat. There are three heating methods: steam, coal heating, and diesel torch. However, using asphalt transporters to transport asphalt has disadvantages such as high risk, repeated heating, and high costs in remote areas.

[0003] There is also a process for melting block asphalt on site in the existing technology. Generally, the existing process is oil pool immersion melting. However, due to structural defects, this melting device is prone to uneven heating of block asphalt, slow melting speed, and easy to cause asphalt aging. At the same time, since all the asphalt in the melting device must be heated for a long time during the heating process, its energy consumption is also very high.

[0004] Therefore, how to improve the existing solid block asphalt melting device to solve the above problems is a current research direction for those skilled in the art. Summary of the invention

[0005] To this end, the purpose of the present invention is to provide a solid block asphalt rapid melting device to solve the limitations of solid asphalt in use, and its specific technical solution is as follows:

[0006] A solid block asphalt rapid melting device comprises a device body with an internal cavity, a material hoist is installed above the top of the device body, a material drop port is provided on the top surface of the device body, a solid block asphalt constant temperature thermal cutting system is installed in the material drop port, the material hoist can transport solid block asphalt to the material drop port, the solid block asphalt is cut by the solid block asphalt constant temperature thermal cutting system and directly falls into the internal cavity of the device body; a horizontal stirring and dispersing system and an asphalt heating and melting system are installed in the internal cavity of the device body, the asphalt heating and melting system is located below the horizontal stirring and dispersing system and is connected to a smoke exhaust system.

[0007] By adopting the above technical scheme, the solid block asphalt rapid melting device of the present invention first allows the block asphalt of volume to pass through the solid block asphalt constant temperature thermal cutting system, and is quickly divided into small pieces of semi-solid asphalt by the system. The purpose of this is: first, to increase the heating area of ​​the solid asphalt; second, to preheat and melt the block asphalt to a fluid state. The small pieces of semi-solid asphalt fall into the internal cavity of the device body by their own gravity and are heated and melted by the asphalt heating and melting system. During this period, the small pieces of semi-solid asphalt are also dispersed at a uniform speed through horizontal stirring, so that the small pieces of asphalt entering the internal cavity of the device body are quickly melted.

[0008] The device of the present invention effectively solves the problems of uneven heating of block asphalt, slow melting speed and high energy consumption, and also prevents the asphalt from being heated repeatedly, thus having the effect of preventing asphalt from aging.

[0009] On the basis of the above technical solution, the present invention can also make the following improvements:

[0010] Preferably, the material elevator is a rotary material elevator.

[0011] The rotary material elevator can automatically and quickly transport solid block asphalt to the material drop port of the device body. It is easy to operate and labor-saving, greatly reducing labor intensity.

[0012] Preferably, the solid block asphalt constant temperature thermal cutting system includes a constant temperature heat carrier circulation system, which is composed of parallel reciprocating coils and a heat carrier inlet pipe and a heat carrier outlet pipe arranged on the same side of the parallel reciprocating coils and respectively connected to the two ports of the parallel reciprocating coils; the heat carrier inlet pipe and the heat carrier outlet pipe pass through the side wall of the device body to the outside of the device body, and are connected to the corresponding external heat carrier heating storage container.

[0013] A constant temperature heat carrier circulates in the pipeline of the solid block asphalt constant temperature thermal cutting system. When a large volume of block asphalt contacts the outer surface of the pipeline, it will be melted into several small pieces of semi-solid asphalt, which will then pass through the gaps between the pipelines and fall into the internal cavity of the device body.

[0014] Preferably, the heat carrier is heat transfer oil.

[0015] Preferably, when the parallel reciprocating coils are installed, the plane formed by the parallel reciprocating coils must be parallel to the horizontal plane to facilitate rapid cutting of large-volume block asphalt.

[0016] Preferably, the spacing between two adjacent parallel pipes in the parallel reciprocating coil is 5-10 cm, so that the diameter of the small pieces of semi-solid asphalt after being divided is between 5-10 cm. Experimental verification shows that small pieces of semi-solid asphalt of such size are easier to stir and melt quickly.

[0017] Preferably, the horizontal stirring and dispersing system includes a low-speed, high-torque power motor located outside the device body, a horizontal stirring rod located in the internal cavity of the device body and connected to the output shaft of the low-speed, high-torque power motor, and a plurality of stirring blades are vertically and evenly installed on the rod body of the horizontal stirring rod.

[0018] The low-speed, high-torque power motor has the characteristics of simplified structure, high efficiency and energy saving, good torque performance, and multiple motor operation modes. It can adopt multiple modes such as continuous operation, intermittent operation, variable speed operation, forward and reverse operation, etc. according to the needs of asphalt mixing.

[0019] Preferably, the asphalt heating and melting system includes a burner located outside the device body, a direct heating system located in the internal cavity of the device body and connected to the burner, and the end of the direct heating system away from the burner is connected to the smoke exhaust system.

[0020] The burner can rapidly heat up the direct heating system, and the high temperature of the direct heating system can rapidly melt the small pieces of semi-solid asphalt that fall into the inner cavity of the device body into liquid asphalt.

[0021] Preferably, the direct heating system includes a combustion chamber and several rows of heat dissipation pipes connected to the rear end of the combustion chamber, the head end of the combustion chamber is connected to the burner, and the rear end of the heat dissipation pipe is connected to the smoke exhaust system.

[0022] Preferably, the burner is a gas burner.

[0023] Preferably, a liquid asphalt discharge outlet is provided at the lower portion of the device body, and an asphalt pumping device is also installed at the liquid asphalt discharge outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0025] Figure 1 It is a schematic structural diagram of a solid block asphalt rapid melting device of the present invention.

[0026] Among them, in the figure,

[0027] 1-device body, 2-material elevator, 3-material drop port, 4-parallel reciprocating coil, 5-heat carrier inflow pipe, 6-heat carrier outflow pipe, 7-internal cavity, 8-low-speed high-torque power motor, 9-horizontal stirring rod, 10-stirring blades, 11-burner, 12-direct heating system, 13-combustion chamber, 14-heat dissipation pipe, 15-smoke exhaust system. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention 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 cannot be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] According to the following Figure 1 The solid block asphalt rapid melting device according to the embodiment of the present invention is described in detail.

[0034] Example:

[0035] like Figure 1 As shown, the solid block asphalt rapid melting device of the embodiment of the present invention includes a device body 1 with an internal cavity 7, a material hoist 2 is installed above the top of the device body 1, a material drop port 3 is provided on the top surface of the device body 1, a solid block asphalt constant temperature thermal cutting system is installed in the material drop port 3, the material hoist 2 can transport the solid block asphalt to the material drop port 3, the solid block asphalt is cut by the solid block asphalt constant temperature thermal cutting system and directly falls into the internal cavity 7 of the device body 1; a horizontal stirring and dispersing system and an asphalt heating and melting system are installed in the internal cavity 7 of the device body 1, and the asphalt heating and melting system is located below the horizontal stirring and dispersing system and is connected to a smoke exhaust system 15.

[0036] In a specific embodiment of the present invention, the material elevator 2 preferably uses a rotary material elevator, which is not restricted by height and can lift the material high enough. It can also rotate to quickly transport the solid block asphalt on site to the material drop port 3.

[0037] In a specific embodiment of the present invention, the constant temperature thermal cutting system of solid block asphalt includes a constant temperature heat carrier circulation system, which is composed of a parallel reciprocating coil 4 and a heat carrier inlet pipe 5 and a heat carrier outlet pipe 6 which are arranged on the same side of the parallel reciprocating coil 4 and are respectively connected to the two ends of the parallel reciprocating coil 4; the heat carrier inlet pipe 5 and the heat carrier outlet pipe 6 extend to the outside of the device body 1 through the side wall of the device body 1, and are connected to the corresponding heat carrier heating storage container outside; a circulation pump for circulating the heat carrier in the parallel reciprocating coil 4 is also installed in the heat carrier heating storage container, on the heat carrier inlet pipe 5 or on the heat carrier outlet pipe 6. Among them, the heat carrier is preferably heat transfer oil.

[0038] Furthermore, when installing the parallel reciprocating coil 4, the plane formed by the parallel reciprocating coil 4 must be parallel to the horizontal plane. Furthermore, the spacing between two adjacent parallel pipes in the parallel reciprocating coil 4 is 5-10 cm.

[0039] The heated heat transfer oil in the heat carrier heating storage container is sent to the heat carrier inlet pipe 5 through the circulation pump, then flows through the parallel reciprocating coil 4, and finally flows back to the heat carrier heating storage container from the heat carrier outlet pipe 6. During the continuous circulation of the heat transfer oil, the constant temperature of the heat transfer oil in the parallel reciprocating coil 4 is ensured, so as to quickly divide the large volume of block asphalt into semi-solid asphalt with a diameter of 5-10 cm, increase the heating area of ​​the solid asphalt, and preliminarily preheat the block asphalt to melt it into a fluid state.

[0040] In a specific embodiment of the present invention, the asphalt heating and melting system includes a burner 11 located outside the device body 1, and a direct heating system 12 located in the internal cavity 7 of the device body 1 and connected to the burner 11, wherein the burner 11 is preferably a gas burner.

[0041] Specifically, the direct heating system 12 includes a combustion chamber 13 and several rows of heat dissipation pipes 14 connected to the rear end of the combustion chamber 13. The head end of the combustion chamber 13 is connected to the burner 11. When the burner 11 is started, the combustion chamber 13 will heat up rapidly. Then the combustion chamber 13 will send the high-temperature flue gas into the heat dissipation pipe 14. The heat dissipation pipe 14 can quickly melt the small pieces of semi-solid asphalt that fall into the internal cavity 7 of the device body 1 into liquid asphalt; the rear end of the heat dissipation pipe 14 is connected to the smoke exhaust system 15 to discharge all the smoke inside it.

[0042] In a specific embodiment of the present invention, the horizontal stirring and dispersing system includes a low-speed high-torque power motor 8 located outside the device body 1, a horizontal stirring rod 9 located in the internal cavity 7 of the device body 1 and connected to the output shaft of the low-speed high-torque power motor 8, and a plurality of stirring blades 10 are vertically and evenly installed on the rod body of the horizontal stirring rod 9. The low-speed high-torque power motor 8 can drive the horizontal stirring rod 9 and the stirring blades 10 to rotate at a uniform speed, thereby stirring the small pieces of semi-solid asphalt that fall into the internal cavity 7 of the device body 1, and helping it to melt quickly under the high temperature heating of the direct heating system 12.

[0043] A liquid asphalt outlet is provided at the lower part of the device body 1 , and an asphalt pumping device is also installed at the liquid asphalt outlet to discharge the melted liquid asphalt in the internal cavity 7 to the outside of the device body 1 in a specified amount.

[0044] The solid block asphalt rapid melting device of the present invention is suitable for direct use on site where asphalt is used and can rapidly melt large volumes of block asphalt, thereby solving the problems of high risk, repeated heating, and high costs in remote areas in asphalt transportation, and simultaneously solving the problems of uneven heating, slow melting speed, and high energy consumption in the existing on-site melting process of block asphalt, thereby effectively preventing the aging of asphalt.

[0045] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0046] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A solid block asphalt rapid melting device, characterized in that: The invention comprises a device body (1) having an internal cavity (7), a material hoist (2) being installed above the top of the device body (1), a material drop opening (3) being provided on the top surface of the device body (1), a solid block asphalt constant temperature thermal cutting system being installed in the material drop opening (3), the material hoist (2) being able to transport solid block asphalt to the material drop opening (3), the solid block asphalt being cut by the solid block asphalt constant temperature thermal cutting system and then falling directly into the internal cavity (7) of the device body (1); a horizontal stirring and dispersing system and an asphalt heating and melting system being installed in the internal cavity (7) of the device body (1), the asphalt heating and melting system being located below the horizontal stirring and dispersing system and being connected to a smoke exhaust system (15).

2. A solid block asphalt rapid melting device according to claim 1, characterized in that: The material elevator (2) is a rotary material elevator.

3. A solid block asphalt rapid melting device according to claim 1, characterized in that: The solid block asphalt constant temperature thermal cutting system includes a constant temperature heat carrier circulation system, which is composed of a parallel reciprocating coil (4) and a heat carrier inlet pipe (5) and a heat carrier outlet pipe (6) which are arranged on the same side of the parallel reciprocating coil (4) and are respectively connected to the two ends of the parallel reciprocating coil (4); the heat carrier inlet pipe (5) and the heat carrier outlet pipe (6) pass through the side wall of the device body (1) and extend to the outside of the device body (1), and are connected to the corresponding external heat carrier heating storage container.

4. A solid block asphalt rapid melting device according to claim 3, characterized in that: The heat carrier is heat transfer oil.

5. A solid block asphalt rapid melting device according to claim 3, characterized in that: When the parallel reciprocating coils (4) are installed, the plane formed by the parallel reciprocating coils (4) must be parallel to the horizontal plane.

6. A solid block asphalt rapid melting device according to claim 3, characterized in that: The spacing between two adjacent parallel pipelines in the parallel reciprocating coil (4) is 5-10 cm.

7. The solid block asphalt rapid melting device according to claim 1, characterized in that: The horizontal stirring and dispersing system comprises a low-speed high-torque power motor (8) located outside the device body (1), a horizontal stirring rod (9) located in an internal cavity (7) of the device body (1) and connected to the output shaft of the low-speed high-torque power motor (8), and a plurality of stirring blades (10) are vertically and evenly mounted on the rod body of the horizontal stirring rod (9).

8. A solid block asphalt rapid melting device according to claim 1 or 7, characterized in that: The asphalt heating and melting system comprises a burner (11) located outside the device body (1), and a direct heating system (12) located in an internal cavity (7) of the device body (1) and connected to the burner (11); an end of the direct heating system (12) away from the burner (11) is connected to the smoke exhaust system (15).

9. A solid block asphalt rapid melting device according to claim 8, characterized in that: The direct heating system (12) comprises a combustion chamber (13) and a plurality of rows of heat dissipation pipes (14) connected to the rear end of the combustion chamber (13); the head end of the combustion chamber (13) is connected to the burner (11), and the rear end of the heat dissipation pipe (14) is connected to the smoke exhaust system (15).

10. The solid block asphalt rapid melting device according to claim 1, characterized in that: A liquid asphalt discharge port is arranged at the lower part of the device body (1), and an asphalt pumping device is also installed at the liquid asphalt discharge port.

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