A uniformly mixed waterproof membrane bitumen raw material storage tank

By installing heating and stirring mechanisms inside the asphalt storage tank, the problem of asphalt solidification near the inner wall of the tank was solved, achieving uniform heating and flow of the asphalt, avoiding solidification and adhesion, and improving the efficiency of the storage tank.

CN224428664UActive Publication Date: 2026-06-30YUNNAN XINCHENG JURONG CONSTRUCTION ENGINEERING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN XINCHENG JURONG CONSTRUCTION ENGINEERING CO LTD
Filing Date
2025-07-29
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Asphalt near the inner wall of large asphalt storage tanks is prone to solidification and adhesion, and existing insulation measures cannot effectively solve the problem of low temperature caused by heat loss.

Method used

It adopts a built-in heating and stirring mechanism, including first and second stirring mechanisms, to uniformly stir and heat the asphalt through stirring plates and stirring blocks, ensuring that the asphalt material flows evenly in the storage tank and avoiding local solidification.

Benefits of technology

It effectively prevents asphalt near the inner wall of the storage tank from solidifying, keeps the asphalt in a liquid state, improves the temperature uniformity inside the storage tank, prevents adhesion, and improves the efficiency of the storage tank.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model discloses a uniformly mixed asphalt raw material storage tank for waterproof membrane, relating to the field of auxiliary technology for waterproof membrane preparation. The utility model includes: a storage tank with a built-in heating mechanism, an exhaust pipe connected to the top surface, and a discharge mechanism connected to the bottom surface; a first stirring mechanism, including a first rotating motor disposed on the outer wall of the top surface of the storage tank, the rotating end of the first rotating motor coaxially extending into the storage tank and mounting a first working mechanism; a second stirring mechanism, including a second rotating motor disposed on the outer wall of the bottom surface of the storage tank, the rotating end of the second rotating motor coaxially extending into the storage tank and mounting a second working mechanism; the bottom end of the first working mechanism and the top end of the second working mechanism are coaxially rotatably connected; to solve the problem of asphalt easily solidifying and sticking near the inner wall of existing large asphalt storage tanks.
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Description

Technical Field

[0001] This utility model relates to the field of auxiliary technology for the preparation of waterproof membranes, specifically, it is a storage tank for uniformly mixed asphalt raw materials for waterproof membranes. Background Technology

[0002] Asphalt raw material storage tanks are core equipment in asphalt production, storage, and transportation systems. Asphalt is a high-viscosity semi-solid or solid substance at room temperature. To facilitate storage, pumping, and processing, asphalt is typically heated and maintained at a high process temperature range within the storage tank.

[0003] For a long time, the core design focus of large asphalt storage tanks has been insulation and heating systems. Common insulation methods involve lining the outer wall of the tank with high-efficiency insulation materials such as rock wool, glass wool, or polyurethane, and installing heating coil systems at the bottom and / or side walls of the tank to compensate for heat loss and maintain the overall temperature of the asphalt inside.

[0004] However, a long-standing but easily overlooked technical problem, especially in large-capacity vertical fixed-roof or floating-roof storage tanks, is the localized low temperature of the asphalt on the inner wall of the tank and the resulting solidification and bonding problem.

[0005] Although the external insulation layer significantly reduces the overall heat dissipation rate of the tank wall, the average temperature of the outer wall in contact with the atmosphere is still significantly lower than the temperature of the asphalt inside the tank. Heat continues to dissipate outward through the metal tank wall.

[0006] Near the tank wall surface, the flow rate of the asphalt is very slow, and the effect of thermal convection is weak. Heat transfer mainly relies on inefficient heat conduction. Utility Model Content

[0007] The purpose of this invention is to provide a uniformly mixed waterproof membrane asphalt raw material storage tank to solve the problem that asphalt near the inner wall of existing large asphalt storage tanks is prone to solidification and adhesion.

[0008] To solve the above problems, the present invention adopts the following technical means:

[0009] A storage tank for uniformly mixed waterproof membrane bitumen raw materials, comprising:

[0010] The storage tank has a built-in heating mechanism, an exhaust pipe connected to the top, and a discharge mechanism connected to the bottom.

[0011] The first stirring mechanism includes a first rotating motor disposed on the outer wall of the top surface of the storage tank, and the rotating end of the first rotating motor extends coaxially into the storage tank and is equipped with a first working mechanism.

[0012] The second stirring mechanism includes a second rotating motor disposed on the outer wall of the bottom surface of the storage tank, and the rotating end of the second rotating motor extends coaxially into the storage tank and is equipped with a second working mechanism.

[0013] The bottom end of the first working mechanism is rotatably connected to the top end of the second working mechanism on the same axis;

[0014] The second stirring part of the second working mechanism is slidably fitted to the inner wall of the storage tank, and the heating end of the heating mechanism is located between the second stirring part and the first stirring part of the first working mechanism.

[0015] Preferably, the first working mechanism includes a first rotating rod coaxially connected to the rotating end of the first rotating motor, the bottom end of the first rotating rod being rotatably connected to the second working mechanism, and a stirring plate serving as the first stirring part being mounted on the side of the first rotating rod around its axis.

[0016] Furthermore, there are two stirring plates, which are symmetrically arranged about the axis of the first rotating rod, and the stirring plates extend along the axial direction of the first rotating rod.

[0017] Furthermore, the width of the stirring plate gradually decreases along the direction away from the first rotating rod.

[0018] Furthermore, the second working mechanism includes a second rotating rod coaxially connected to the rotating end of the second rotating motor. The top end of the second rotating rod is used for coaxial rotatable connection with the first working mechanism. A horizontal rod is installed around the side wall of the second rotating rod along its axis. A vertical stirring block, serving as the second stirring part, is installed at the end of the horizontal rod. The stirring block is a wedge-shaped block. The side of the stirring block opposite to the horizontal rod is constructed as a wedge-shaped surface that fits against the arc surface of the inner wall of the storage tank. The pointed end of the stirring block faces the rotation direction of the second rotating motor.

[0019] Furthermore, the stirring block has a cavity structure inside, and the inner wall of the stirring block is covered with several heating plates. The heating plates at least cover one side of the cavity structure closest to the inner wall of the storage tank, and the cavity structure of the stirring block is filled with heat insulation cotton.

[0020] Furthermore, the sidewall of the cavity structure is fitted with a vertically extending conduit that is open at both ends. The sidewall of the conduit is provided with an inlet pipe that communicates with the inner cavity of the conduit. Each heating plate has one inlet pipe on the same horizontal plane.

[0021] Furthermore, there are two horizontal bars, which are symmetrically arranged about the axis of the second rotating bar.

[0022] Furthermore, the first stirring part of the first stirring mechanism and the second stirring part of the second stirring mechanism are staggered.

[0023] Furthermore, the heating mechanism includes a plurality of heating rods inserted into the storage tank, the heating rods being inserted into the storage tank in a direction parallel to the rotation axis of the first working mechanism or the second working mechanism.

[0024] This utility model has the following beneficial effects during use:

[0025] A large amount of asphalt is placed in a storage tank, and a heating mechanism continuously heats the asphalt to a liquid state. Combined with a first and a second stirring mechanism, the asphalt located at the center of the storage tank is agitated by the first stirring mechanism, causing this portion of the asphalt to move towards the inner edge of the tank. The second stirring mechanism, which slides against the inner wall of the tank, further agitates the asphalt near the inner wall, causing it to continuously move towards the center. Combined with the heating mechanism positioned between the first and second stirring mechanisms, the cooler portion of the asphalt far from the heating mechanism continuously moves towards it under the influence of the first and second stirring mechanisms. The heated material is then continuously mixed and flows under the mutual compression of the asphalt particles. This effectively prevents the asphalt near the inner wall of the tank from undergoing prolonged heat exchange with the outside environment, causing it to solidify and agglomerate due to its low temperature. Furthermore, by utilizing the coaxial rotational connection between the first and second working mechanisms, the materials in the storage tank can be better stirred by allowing the first and second working mechanisms to rotate in the same direction or in opposite directions. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model.

[0027] Figure 2 This is a schematic diagram of the structure of this utility model with an open top view.

[0028] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0029] Figure 4 for Figure 2 A top-view structural diagram.

[0030] Among them, 1-storage tank, 2-first rotating motor, 3-second rotating motor, 4-first rotating rod, 5-stirring plate, 6-second rotating rod, 7-horizontal rod, 8-stirring block, 9-heating plate, 10-circuit conduit, 11-heating rod. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] Please refer to Figures 1 to 4 As shown, a storage tank for uniformly mixed waterproof membrane bitumen raw materials includes:

[0038] Storage tank 1 has a built-in heating mechanism, an exhaust pipe connected to the top surface, and a discharge mechanism connected to the bottom surface. The discharge mechanism is a discharge pipe with a switch valve.

[0039] The first stirring mechanism includes a first rotating motor 2 disposed on the outer wall of the top surface of the storage tank 1, and the rotating end of the first rotating motor 2 extends coaxially into the storage tank 1 and is equipped with a first working mechanism.

[0040] The second stirring mechanism includes a second rotating motor 3 located on the outer wall of the bottom surface of the storage tank 1. The rotating end of the second rotating motor 3 extends coaxially into the storage tank 1 and is equipped with a second working mechanism.

[0041] The bottom end of the first working mechanism is rotatably connected to the top end of the second working mechanism on the same axis;

[0042] The second stirring part of the second working mechanism is slidably fitted to the inner wall of the storage tank 1, and the heating end of the heating mechanism is located between the second stirring part and the first stirring part of the first working mechanism.

[0043] In this way, a large amount of asphalt material is placed in storage tank 1, and the asphalt material is continuously heated by a heating mechanism to keep the asphalt in a liquid state. Combined with the first and second stirring mechanisms, the asphalt located at the center of storage tank 1 is agitated by the stirring action of the first stirring mechanism, causing this portion of the asphalt to move towards the inner edge of storage tank 1. Under the action of the second stirring mechanism, the asphalt material near the inner wall of storage tank 1 is agitated by the second stirring section that slides against the inner wall of storage tank 1, causing the asphalt material near the inner wall of storage tank 1 to continuously move towards the center of storage tank 1. Combined with the heating mechanism located between the first and second stirring sections, the lower-temperature portion of the asphalt material in storage tank 1, farther from the heating mechanism, continuously moves towards the heating mechanism under the action of the first and second stirring mechanisms, while the heated material is continuously mixed and flowed under the mutual compression of the asphalt materials. This effectively prevents the asphalt material located near the inner wall of storage tank 1 from undergoing prolonged heat exchange with the outside environment due to prolonged distance from the heating mechanism and prolonged residue on the inner wall of storage tank 1, which would cause the material to solidify and agglomerate at a low temperature. Furthermore, the coaxial rotational connection between the first and second working mechanisms allows for better mixing of the material within storage tank 1 by rotating them in the same or opposite directions.

[0044] Furthermore, the first working mechanism includes a first rotating rod 4 coaxially connected to the rotating end of the first rotating motor 2, the bottom end of the first rotating rod 4 being rotatably connected to the second working mechanism, and a stirring plate 5 serving as the first stirring part being mounted on the side of the first rotating rod 4 around its axis.

[0045] Meanwhile, there are two stirring plates 5, which are symmetrically arranged about the axis of the first rotating rod 4, and the stirring plates 5 extend along the axis of the first rotating rod 4.

[0046] Furthermore, the width of the stirring plate 5 gradually decreases along the direction away from the first rotating rod 4.

[0047] In this way, by setting up two mixing plates 5, and combining the gradually decreasing width of the mixing plates 5, the asphalt material can move better toward the heating mechanism when the second mixing mechanism is set. This avoids the problem of insufficient movement and heat exchange between the asphalt material due to setting too many mixing plates 5.

[0048] Furthermore, the second working mechanism includes a second rotating rod 6 coaxially connected to the rotating end of the second rotating motor 3. The top end of the second rotating rod 6 is used for coaxial rotatable connection with the first working mechanism. A horizontal rod 7 is installed around the side wall of the second rotating rod 6 along its axis. A vertical stirring block 8 serving as the second stirring part is installed at the end of the horizontal rod 7. The stirring block 8 is a wedge-shaped block. The side of the stirring block 8 opposite to the horizontal rod 7 is constructed as a wedge-shaped surface that fits against the arc surface of the inner wall of the storage tank 1. The pointed end of the stirring block 8 faces the rotation direction of the second rotating motor 3.

[0049] In this way, by setting the stirring block 8 with a specific shape, the asphalt material near the inner wall of the storage tank 1 can be better moved towards the heating mechanism by the stirring block 8. Furthermore, in this embodiment, the rotation state of the first and second working mechanisms is such that the rotation direction of the second working mechanism remains constant. By adjusting the rotation direction of the first working mechanism, the states of the first and second working mechanisms can be adjusted, allowing them to rotate in the same direction or in opposite directions. Moreover, the first and second working mechanisms can be made to stir the asphalt material in the storage tank 1 at different rotation speeds. This improves the stirring effect of the asphalt material and allows for adjustment of the stirring state of the asphalt material according to actual needs.

[0050] Furthermore, in order to allow the second working mechanism to heat the asphalt material near the inner wall of the storage tank 1 more directly, the mixing block 8 is provided with a cavity structure, and the inner wall of the mixing block 8 is covered with several heating plates 9. The heating plates 9 at least cover the side of the cavity structure closest to the inner wall of the storage tank 1, and the cavity structure of the mixing block 8 is filled with heat insulation cotton.

[0051] In this way, the asphalt material near the inner wall of storage tank 1 can be directly heated, reducing its viscosity near the inner wall of storage tank 1, and making it easier to disturb the asphalt material near the inner wall of storage tank 1 toward the center of storage tank 1.

[0052] To facilitate the wiring of the heating plate 9, a vertically extending and through-end wiring conduit 10 is installed on the side wall of the cavity structure. The side wall of the wiring conduit 10 is provided with an inlet pipe that communicates with the inner cavity of the wiring conduit 10. Each heating plate 9 has one inlet pipe on the same horizontal plane.

[0053] In this way, the wiring of each heating plate 9 can be gathered in the wiring conduit 10 and then routed from inside the horizontal plate below.

[0054] Specifically, there are two horizontal bars 7, which are symmetrically arranged about the axis of the second rotating bar 6.

[0055] Furthermore, the first stirring part of the first stirring mechanism and the second stirring part of the second stirring mechanism are staggered.

[0056] Furthermore, the heating mechanism includes a plurality of heating rods 11 inserted into the storage tank 1, the heating rods 11 being inserted into the storage tank 1 along a direction parallel to the rotation axis of the first working mechanism or the second working mechanism.

[0057] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A uniformly blended waterproofing membrane asphalt raw material storage tank characterized by, include: The storage tank (1) has a built-in heating mechanism, an exhaust pipe connected to the top surface, and a discharge mechanism connected to the bottom surface; The first stirring mechanism includes a first rotating motor (2) disposed on the outer wall of the top surface of the storage tank (1), and the rotating end of the first rotating motor (2) extends coaxially into the storage tank (1) and is equipped with a first working mechanism. The second stirring mechanism includes a second rotating motor (3) located on the outer wall of the bottom surface of the storage tank (1). The rotating end of the second rotating motor (3) extends coaxially into the storage tank (1) and is equipped with a second working mechanism. The bottom end of the first working mechanism is rotatably connected to the top end of the second working mechanism on the same axis; The second stirring part of the second working mechanism is slidably attached to the inner wall of the storage tank (1), and the heating end of the heating mechanism is located between the second stirring part and the first stirring part of the first working mechanism.

2. The uniformly mixed waterproof membrane bitumen raw material storage tank according to claim 1, characterized in that, The first working mechanism includes a first rotating rod (4) coaxially connected to the rotating end of the first rotating motor (2). The bottom end of the first rotating rod (4) is used to rotatably connect with the second working mechanism. A stirring plate (5) serving as the first stirring part is installed around the side of the first rotating rod (4) around its axis.

3. The uniformly mixed waterproof membrane bitumen raw material storage tank according to claim 2, characterized in that, There are two stirring plates (5), which are symmetrically arranged about the axis of the first rotating rod (4) and extend along the axis of the first rotating rod (4).

4. A uniformly mixed waterproof membrane bitumen raw material storage tank according to claim 2 or 3, characterized in that, The width of the stirring plate (5) gradually decreases along the direction away from the first rotating rod (4).

5. The uniformly mixed waterproof membrane bitumen raw material storage tank according to claim 1, characterized in that, The second working mechanism includes a second rotating rod (6) coaxially connected to the rotating end of the second rotating motor (3). The top end of the second rotating rod (6) is used to be coaxially rotatably connected to the first working mechanism. A horizontal rod (7) is installed around the side wall of the second rotating rod (6) along its axis. A vertical stirring block (8) serving as the second stirring part is installed at the end of the horizontal rod (7). The stirring block (8) is a wedge-shaped block. The side of the stirring block (8) opposite to the horizontal rod (7) is constructed as an arc-shaped surface that fits against the arc surface of the inner wall of the storage tank (1). The pointed end of the stirring block (8) faces the rotation direction of the second rotating motor (3).

6. The uniformly mixed waterproof membrane bitumen raw material storage tank according to claim 5, characterized in that, The stirring block (8) has a cavity structure inside. The inner wall of the stirring block (8) is covered with several heating plates (9). The heating plates (9) at least cover the side of the cavity structure that is close to the inner wall of the storage tank (1). The cavity structure of the stirring block (8) is filled with heat insulation cotton.

7. The uniformly mixed waterproof membrane bitumen raw material storage tank according to claim 6, characterized in that, The sidewall of the cavity structure is equipped with a vertically extending and through-end line conduit (10). The sidewall of the line conduit (10) is provided with an inlet pipe that communicates with the inner cavity of the line conduit (10). Each heating plate (9) has one inlet pipe on the same horizontal plane.

8. A uniformly mixed waterproof membrane bitumen raw material storage tank according to any one of claims 5 to 7, characterized in that, There are two horizontal bars (7), which are arranged symmetrically about the axis of the second rotating bar (6).

9. The uniformly mixed waterproof membrane bitumen raw material storage tank according to claim 1, characterized in that, The first stirring part of the first stirring mechanism and the second stirring part of the second stirring mechanism are staggered.

10. A uniformly mixed waterproof membrane bitumen raw material storage tank according to claim 1, characterized in that, The heating mechanism includes a plurality of heating rods (11) inserted into the storage tank (1), the heating rods (11) being inserted into the storage tank (1) in a direction parallel to the rotation axis of the first working mechanism or the second working mechanism.