Environment-friendly asphalt energy-saving stirring device

By installing a circulating air box and a flow tube in the asphalt mixing plant, the temperature control problem of the mixing tank was solved, achieving temperature stability and successful asphalt modification, thus improving mixing efficiency and effect.

CN224141938UActive Publication Date: 2026-04-21JIAMUSI YUSHENG BUILDING MATERIALS PROCESSING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIAMUSI YUSHENG BUILDING MATERIALS PROCESSING CO LTD
Filing Date
2025-05-19
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

During the asphalt mixing process, the heat generated causes the temperature inside the mixing tank to rise, exceeding the predetermined temperature range and affecting the asphalt modification effect.

Method used

An environmentally friendly and energy-saving asphalt mixing device was designed. Hot air is discharged through a circulating air box and returned to the mixing box to maintain the temperature at 160℃-195℃. Flow tubes are installed on both sides of the discharge channel to prevent asphalt from solidifying.

Benefits of technology

Effectively controlling the temperature inside the mixing tank prevents asphalt from solidifying into lumps, ensuring successful asphalt modification, and improving mixing efficiency and effectiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an environment-friendly and energy-saving asphalt stirring device and belongs to the technical field of asphalt stirring. A stirring assembly is arranged in the stirring box, and a circulating air box is arranged at the top of the stirring box and communicates with an air flow channel formed in the stirring box; the circulating gas box is composed of a gas box body and an air outlet plate, the gas box body is fixedly installed at the top of the stirring box, the air outlet plate is fixedly installed on the gas box body, and a circulating fan is further arranged in the gas box body. By arranging the circulating gas tank, heat generated by machining flows back to the stirring box, the temperature in the stirring box is kept at 160-195 DEG C all the time, when the temperature in the stirring box is reduced, the phenomenon that asphalt is coagulated into blocks easily occurs, the heat generated by machining is mixed with the heat generated by stirring, the temperature in the stirring box is increased, and the stirring efficiency is improved. The asphalt is prevented from being coagulated into blocks.
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Description

Technical Field

[0001] This utility model belongs to the field of asphalt mixing technology, and in particular to an environmentally friendly and energy-saving asphalt mixing device. Background Technology

[0002] Asphalt is a dark brown, complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a type of high-viscosity organic liquid.

[0003] During the asphalt mixing process, asphalt is modified to improve its performance according to customer requirements. This modification necessitates heating the base asphalt to 160℃-195℃ to meet the required temperature. However, during mixing, the asphalt itself generates heat, which dissipates into the mixing equipment. This causes the temperature inside the mixing chamber to rise, exceeding the predetermined 160℃-195℃ range. Consequently, the temperature inside the mixing chamber becomes unsuitable for asphalt modification, leading to modification failure.

[0004] Therefore, this utility model provides an environmentally friendly and energy-saving asphalt mixing device. Utility Model Content

[0005] The purpose of this invention is to provide an environmentally friendly and energy-saving asphalt mixing device to solve the aforementioned problems in the existing technology.

[0006] Technical solution: An environmentally friendly and energy-saving asphalt mixing device, including a mixing tank, a mixing component is installed inside the mixing tank, a circulating air box is installed on the top of the mixing tank, and the circulating air box is connected to the airflow channel formed inside the mixing tank;

[0007] The circulating air box consists of an air box body and an air outlet plate. The air box body is fixedly installed on the top of the mixing tank, and the air outlet plate is fixedly installed on the air box body. A circulating fan is also installed inside the air box body.

[0008] In a further embodiment, a plurality of circulating air holes are provided on the air outlet plate.

[0009] In a further embodiment, the stirring assembly includes a stirring shaft, a fixing bracket, a stirring rod, and a stirring head. The stirring shaft extends through both sides of the stirring tank, the fixing bracket is fixedly installed on the stirring shaft, the stirring rod is fixedly installed on the fixing bracket, and the stirring head is fixedly installed on the stirring rod.

[0010] In a further embodiment, a discharge port is provided on the side of the mixing tank, and the discharge port is provided with a discharge channel that extends into the interior of the mixing tank.

[0011] In a further embodiment, auxiliary flow channels are provided on both sides of the discharge channel, and a flow tube is provided inside the auxiliary flow channel.

[0012] In a further embodiment, a feeding port is provided on the top of the mixing tank, and a feeding cover is flipped up on the feeding port. Beneficial effects

[0013] This invention utilizes a circulating air box to expel the gases generated during asphalt mixing from the mixing chamber, while simultaneously returning the heat generated during machining to the mixing chamber, ensuring that the temperature inside the mixing chamber is maintained between 160℃ and 195℃. When the internal temperature of the mixing chamber decreases, the asphalt is prone to solidifying into lumps. The heat generated during machining and mixing mixes to raise the temperature inside the mixing chamber, preventing asphalt from solidifying. Conversely, when the internal temperature of the mixing chamber becomes too high, the circulating air box expels excess heat, thus maintaining the temperature inside the mixing chamber at the asphalt modification temperature. This ensures successful asphalt modification during the mixing process and prevents modification failure due to excessively high temperatures inside the mixing chamber.

[0014] Furthermore, a control motor and a circulating fan are installed inside the circulating air box. The control motor controls the operation of the circulating fan, and the air outlet of the circulating fan faces the mixing box. The air inlet is located inside the circulating air box, which absorbs the heat generated by the control motor and then blows the air to the mixing box through the air outlet to complete the heat circulation.

[0015] Furthermore, after the asphalt is mixed, it is recycled through the discharge channel. During the mixing process, when additional material is needed, it is added through the feeding port. Auxiliary channels are installed on both sides of the discharge channel to accelerate the discharge of asphalt. A flow tube is installed inside the auxiliary channel to separate the asphalt from the auxiliary channel, preventing direct contact between the asphalt and the auxiliary channel. Since the outer wall of the auxiliary channel is exposed in the mixing tank, its temperature is relatively low. The flow tube acts as a heat insulator for the asphalt, preventing it from solidifying due to temperature differences during flow. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the environmentally friendly asphalt mixing device of this utility model.

[0017] Figure 2 This is a three-dimensional view of the environmentally friendly asphalt mixing device of this utility model from another angle.

[0018] Figure 3 This is a front view of the mixing tank of this utility model.

[0019] Figure 4 This is an internal view of the mixing tank of this utility model.

[0020] The attached diagram is labeled as follows: 1. Mixing tank; 2. Feeding cover; 3. Mixing shaft; 4. Flow tube; 5. Discharge channel; 6. Discharge port; 7. Circulating air box; 8. Air outlet plate; 9. Air flow channel; 10. Circulating air hole; 11. Mixing head; 12. Mixing rod; 13. Fixing lock frame; 14. Auxiliary flow channel; 15. Feeding port. Detailed Implementation

[0021] The following description provides numerous specific details in order to provide a more thorough understanding of the present invention.

[0022] However, it will be apparent to those skilled in the art that the present invention can be implemented without one or more of these details.

[0023] In other examples, to avoid confusion with the present invention, some technical features known in the art have not been described.

[0024] like Figures 1-4 As shown, an environmentally friendly asphalt energy-saving mixing device consists of a mixing box 1, a feeding cover 2, a mixing shaft 3, a flow cylinder 4, a discharge channel 5, a discharge port 6, a circulating air box 7, an air outlet plate 8, an air flow channel 9, a circulating air hole 10, a mixing head 11, a mixing rod 12, a fixing lock frame 13, an auxiliary flow channel 14, and a feeding port 15.

[0025] A mixing assembly is installed inside the mixing tank 1, and a circulating air box 7 is installed on the top of the mixing tank 1. The circulating air box 7 is connected to the airflow channel 9 formed inside the mixing tank 1.

[0026] The circulating air box 7 consists of an air box body and an air outlet plate 8. The air box body is fixedly installed on the top of the mixing box 1, and the air outlet plate 8 is fixedly installed on the air box body. A circulating fan is also installed inside the air box body.

[0027] Several circulating air holes 10 are provided on the air outlet plate 8. The required number of circulating air holes 10 is set to 30-50, and the circulating air holes are set as common round holes.

[0028] The mixing assembly includes a mixing shaft 3, a fixing bracket 13, a mixing rod 12, and a mixing head 11. The mixing shaft 3 extends through both sides of the mixing tank 1. The fixing bracket 13 is fixedly installed on the mixing shaft 3, the mixing rod 12 is fixedly installed on the fixing bracket 13, and the mixing head 11 is fixedly installed on the mixing rod 12. Figure 4As shown, a total of 8 sets of mixing heads 11 and mixing rods 12 are provided, which can simultaneously mix the asphalt at different positions in the mixing box 1 along the setting direction of the mixing shaft 3. The mixing efficiency is higher and the mixing effect is better. After the asphalt is fully mixed, the heat inside the asphalt can be fully dispersed into the mixing box 1. Then, according to the actual temperature change, the heat generated by the hot air is controlled by the circulating air box 7 to ensure that the temperature in the mixing box 1 is always maintained at 160℃-195℃, thereby ensuring the modification effect of the asphalt.

[0029] A discharge port 6 is provided on the side of the mixing tank 1, and a discharge channel 5 is provided on the discharge port 6, which extends into the interior of the mixing tank 1. The discharge channel 5 is inside the mixing tank 1, which allows for faster contact with the asphalt. At the same time, the discharge channel 5 prevents the asphalt from directly contacting the air, which could cause the temperature to drop and the asphalt to clump.

[0030] Auxiliary flow channels 14 are provided on both sides of the discharge channel 5, and flow tubes 4 are installed inside the auxiliary flow channels 14. The auxiliary flow channels 14 of the discharge channel 5 can accelerate the flow of asphalt. If asphalt stays in one place for a long time, it will solidify and affect the subsequent flow of asphalt. The flow tubes 4 installed in the auxiliary flow channels 14 can keep the asphalt warm.

[0031] A feeding port 15 is opened on the top of the mixing tank 1, and a feeding cover is flipped on the feeding port (15).

[0032] The top-mounted feeding cover 2 is flipped up. Opening the feeding port 15 allows cold air to enter the mixing chamber 1, while the feeding cover 2 prevents heat loss from the mixing chamber 1, ensuring that the temperature inside the mixing chamber 1 meets the asphalt modification temperature.

[0033] Working principle

[0034] Open the feeding cover 2 and pour the asphalt into the mixing tank 1. The mixing shaft 3 rotates, driving the mixing head 11 to rotate and mix the asphalt in the mixing tank 1. Turn on the circulating air box 7, and the circulating fan will discharge the gas generated during the asphalt mixing into the mixing tank 1. The heat generated by the circulating fan will also enter the mixing tank 1 to prevent the asphalt from solidifying into lumps. After the asphalt is mixed, it will be recycled through the discharge channel 5. If it is necessary to add material during the mixing process, it can be added through the flow tube 4 or from the feeding port 15.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0036] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy-saving mixing device for environment-friendly asphalt, comprising a mixing box (1), characterized in that, The mixing tank (1) is equipped with a mixing component inside, and a circulating air box (7) is provided on the top of the mixing tank (1). The circulating air box (7) is connected to the airflow channel (9) formed inside the mixing tank (1). The circulating air box (7) consists of an air box body and an air outlet plate (8). The air box body is fixedly installed on the top of the mixing box (1), and the air outlet plate (8) is fixedly installed on the air box body. A circulating fan is also provided inside the air box body.

2. The energy-saving environment-friendly asphalt mixing device according to claim 1, characterized in that, The air outlet plate (8) is provided with several circulating air holes (10).

3. The energy-saving environment-friendly asphalt mixing device according to claim 1, characterized in that, The stirring assembly includes a stirring shaft (3), a fixing bracket (13), a stirring rod (12), and a stirring head (11). The stirring shaft (3) passes through both sides of the stirring box (1). The fixing bracket (13) is fixedly installed on the stirring shaft (3). The stirring rod (12) is fixedly installed on the fixing bracket (13). The stirring head (11) is fixedly installed on the stirring rod (12).

4. The energy-saving environment-friendly asphalt mixing device according to claim 1, characterized in that, The mixing tank (1) is provided with a discharge port (6) on its side, and the discharge port (6) is provided with a discharge channel (5) which extends into the interior of the mixing tank (1).

5. The energy-saving environment-friendly asphalt mixing device according to claim 4, characterized in that, Auxiliary flow channels (14) are provided on both sides of the discharge channel (5), and a flow tube (4) is provided inside the auxiliary flow channel (14).

6. The energy-saving environment-friendly asphalt mixing device according to claim 1, characterized in that, The mixing tank (1) has a feeding port (15) on top, and a feeding cover (2) is flipped on the feeding port (15).