Environment-friendly recycled concrete and asphalt precise mixing and stirring device
By designing an environmentally friendly, precise mixing device for recycled concrete and asphalt, and employing an independent mixing system and gas handling chamber, the problem of mixing concrete and asphalt has been solved, achieving an efficient and environmentally friendly mixing process, and ensuring uniform mixing and environmental protection.
Patent Information
- Application Number
- CN202422676940.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-11-04
AI Technical Summary
In existing technologies, it is difficult to achieve precise control over the mixing of concrete and asphalt, and the harmful gases generated during the mixing process are difficult to treat, leading to environmental pollution.
An environmentally friendly precision mixing device for recycled concrete and asphalt was designed. It adopts an independent mixing system and a gas treatment box, and uses activated carbon, calcium hydroxide and manganese dioxide to adsorb and neutralize harmful gases. At the same time, the mixing process can be observed through transparent glass to ensure uniformity and quality.
It achieves precise mixing of concrete and asphalt, improves mixing efficiency and quality, reduces environmental pollution, and protects the health of operators.
Smart Images
Figure CN223646890U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mixing, and in particular to an environmentally friendly precision mixing device for recycled concrete and asphalt. Background Technology
[0002] Concrete is mainly composed of cement, sand, gravel, water, and admixtures. Cement acts as a binder, binding the sand and gravel together. For example, ordinary Portland cement undergoes a hydration reaction upon contact with water, producing gel substances such as calcium silicate hydrate, which coat the sand and gravel particles and harden them. Sand and gravel act as a skeletal support in concrete, while fine aggregate fills the voids between coarse aggregate, increasing the density of the concrete.
[0003] Asphalt is a complex mixture mainly composed of various hydrocarbons and their non-metallic derivatives. It is derived from natural resources such as petroleum and is refined through processing. Asphalt contains asphaltenes, resins, aromatics, and saturated components.
[0004] However, it is currently difficult to mix concrete and asphalt, and the generated gases are difficult to treat, which can easily pollute the environment.
[0005] In view of this, this paper studies and improves upon existing problems, and provides an environmentally friendly precision mixing device for recycled concrete and asphalt. It has a reasonable structural design, and the activated carbon, calcium hydroxide and manganese dioxide in the gas treatment box can effectively adsorb and neutralize the harmful gases generated during the mixing process, thereby reducing environmental pollution. The aim of this technology is to solve the problem and improve its practical value. Utility Model Content
[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing an environmentally friendly, precise mixing device for recycled concrete and asphalt.
[0007] To achieve the above objectives, this utility model adopts the following technical solution: an environmentally friendly, precisely mixed and stirred device for recycled concrete and asphalt, comprising a mixing tank, a concrete mixing tank, and a connection port. The top of the concrete mixing tank is equipped with a motor housing A and a concrete inlet. The upper end of the mixing tank is equipped with a motor housing B and an asphalt inlet. A gas treatment box is installed on the outer wall of the mixing tank, with an exhaust pipe connected to one end. A transparent glass panel is installed at the front end of the mixing tank. A discharge port is installed at the bottom of the outer wall of the mixing tank. A variable frequency motor A is installed inside the motor housing A, with a stirring shaft A connected to the bottom of the variable frequency motor A. A variable frequency motor B is installed inside the motor housing B, with a stirring shaft B connected below the variable frequency motor B. Activated carbon, calcium hydroxide, and manganese dioxide are disposed inside the gas treatment box.
[0008] As a further description of the above technical solution:
[0009] The concrete mixing tank is integrally connected to the outer wall of the mixing tank, the motor housing A is fixedly installed on the top of the concrete mixing tank, and the concrete inlet is integrally connected to the top of the concrete mixing tank.
[0010] As a further description of the above technical solution:
[0011] The motor housing B is fixedly installed on the top of the mixing tank, the asphalt inlet is integrally connected to the top of the mixing tank, the transparent glass is fixedly installed on the front outer wall of the mixing tank, and the discharge port is fixedly installed on the bottom of the outer wall of the mixing tank.
[0012] As a further description of the above technical solution:
[0013] The variable frequency motor A is fixedly installed inside the motor housing A, the stirring shaft A is drivenly connected to the bottom of the variable frequency motor A, and the connection port is opened between the mixing tank and the concrete mixing tank.
[0014] As a further description of the above technical solution:
[0015] The variable frequency motor B is fixedly installed inside the motor housing B, and the stirring shaft B is drivenly connected to the bottom of the variable frequency motor B. The size of the stirring shaft A is larger than that of the stirring shaft B, and the number of stirring blades of the stirring shaft A is less than the number of stirring blades of the stirring shaft B.
[0016] As a further description of the above technical solution:
[0017] The gas treatment box is fixedly connected to the outer wall of the mixing tank, the gas outlet pipe is fixedly connected to the outer wall of the gas treatment box, and the activated carbon, calcium hydroxide and manganese dioxide are distributed sequentially inside the gas treatment box.
[0018] This utility model has the following beneficial effects:
[0019] In this invention, by setting up two independent mixing systems, concrete and asphalt can be precisely mixed separately, ensuring the uniformity and quality of the mixture. Simultaneously, the transparent glass design allows operators to directly observe the mixing process and adjust mixing parameters in a timely manner, further improving mixing efficiency and quality. Furthermore, the gas treatment chamber effectively treats harmful gases generated during the mixing process, protecting the environment and the health of operators, and enhancing the environmental protection capabilities of the device.
[0020] The mixing tank and concrete mixing tank of this device are connected by a connection port, allowing the two materials to be mixed in a closed system, avoiding cross-contamination. Variable frequency motors A and B, located in motor housings A and B respectively, can adjust their speeds according to different mixing requirements, thus achieving precise control over the concrete and asphalt. The different dimensions and number of mixing blades of mixing shafts A and B ensure optimal mixing of the two materials during the mixing process.
[0021] In terms of environmental protection, the activated carbon, calcium hydroxide, and manganese dioxide inside the gas treatment chamber can effectively adsorb and neutralize harmful gases generated during the mixing process, such as hydrogen sulfide and nitrogen oxides, thereby reducing environmental pollution. The design of the exhaust pipe ensures the safe discharge of treated gas, avoiding impact on operators and the surrounding environment.
[0022] In summary, the environmentally friendly recycled concrete and asphalt precision mixing device of this invention not only improves the efficiency and quality of mixing, but also has significant advantages in environmental protection. It is a new type of efficient and environmentally friendly mixing device. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of an environmentally friendly, precise mixing device for recycled concrete and asphalt proposed in this utility model.
[0024] Figure 2 This is an internal schematic diagram of an environmentally friendly, precision mixing device for recycled concrete and asphalt proposed in this utility model.
[0025] Figure 3 This is a schematic diagram of the internal gas handling chamber of an environmentally friendly, precise mixing device for recycled concrete and asphalt proposed in this utility model.
[0026] Figure 4 This is a plan view of the mixing shaft of an environmentally friendly, precisely mixed concrete and asphalt mixing device proposed in this utility model.
[0027] Legend:
[0028] 1. Mixing tank; 2. Concrete mixing tank; 3. Transparent glass; 4. Motor housing A; 5. Concrete inlet; 6. Motor housing B; 7. Asphalt inlet; 8. Gas treatment tank; 9. Gas outlet pipe; 10. Discharge port; 11. Variable frequency motor A; 12. Variable frequency motor B; 13. Mixing shaft A; 14. Connection port; 15. Mixing shaft B; 16. Activated carbon; 17. Calcium hydroxide; 18. Manganese dioxide. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] 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., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only 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, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. 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 a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0031] Reference Figure 1-4 This utility model provides an embodiment of an environmentally friendly, precisely mixed concrete and asphalt mixing device, comprising a mixing tank 1, a concrete mixing tank 2, and a connection port 14. The top of the concrete mixing tank 2 is provided with a motor housing A4 and a concrete inlet 5. The upper end of the mixing tank 1 is provided with a motor housing B6 and an asphalt inlet 7. A gas treatment box 8 is installed on the outer wall of the mixing tank 1, and one end of the gas treatment box 8 is connected to an outlet pipe 9. A transparent glass 3 is installed at the front end of the mixing tank 1. A discharge port 10 is installed at the bottom of the outer wall of the mixing tank 1. A variable frequency motor A11 is installed inside the motor housing A4, and a stirring shaft A13 is connected to the bottom of the variable frequency motor A11. A variable frequency motor B12 is installed inside the motor housing B6, and a stirring shaft B15 is connected below the variable frequency motor B12. Activated carbon 16, calcium hydroxide 17, and manganese dioxide 18 are disposed inside the gas treatment box 8.
[0032] In this invention, the concrete mixing tank 2 is integrally connected to the outer wall of the mixing tank 1, the motor housing A4 is fixedly installed on the top of the concrete mixing tank 2, and the concrete inlet 5 is integrally connected to the top of the concrete mixing tank 2.
[0033] Furthermore, the motor housing B6 is fixedly installed on the top of the mixing tank 1, the asphalt inlet 7 is integrally connected to the top of the mixing tank 1, the transparent glass 3 is fixedly installed on the front outer wall of the mixing tank 1, and the discharge port 10 is fixedly installed on the bottom of the outer wall of the mixing tank 1.
[0034] Furthermore, the variable frequency motor A11 is fixedly installed inside the motor housing A4, the stirring shaft A13 is drivenly connected to the bottom of the variable frequency motor A11, and the connection port 14 is opened between the mixing tank 1 and the concrete mixing tank 2.
[0035] Furthermore, the variable frequency motor B12 is fixedly installed inside the motor housing B6, and the mixing shaft B15 is drivenly connected to the bottom of the variable frequency motor B12. The size of the mixing shaft A13 is larger than that of the mixing shaft B15, and the number of mixing blades on the mixing shaft A13 is less than that on the mixing shaft B15. By designing the size of the mixing shaft A13 to be larger than that of the mixing shaft B15, it is ensured that the mixing shaft A13 has a stronger mixing force and a deeper mixing depth when mixing concrete, thereby making the concrete mix more uniform and thorough. Although the mixing shaft B15 is smaller in size, it has a larger number of mixing blades, which enables it to provide a finer and more efficient mixing effect when mixing asphalt. This design not only improves the mixing efficiency but also ensures the mixing quality of concrete and asphalt, thereby improving the performance of the final product.
[0036] In addition, the location of the connection port 14 is carefully designed to ensure that concrete and asphalt are fully mixed during the mixing process, while avoiding material spillage and waste.
[0037] In terms of environmental protection, the activated carbon 16, calcium hydroxide 17, and manganese dioxide 18 filled inside the gas treatment box 8 can effectively adsorb and neutralize harmful gases generated during the stirring process, thereby reducing environmental pollution. The selection and use of these materials not only improves the environmental performance of the device but also ensures the health and safety of the operators.
[0038] Furthermore, the gas treatment chamber 8 is fixedly connected to the outer wall of the mixing and stirring chamber 1, and the gas outlet pipe 9 is fixedly connected to the outer wall of the gas treatment chamber 8. The activated carbon 16, calcium hydroxide 17, and manganese dioxide 18 are sequentially distributed inside the gas treatment chamber 8. Through the combined use of activated carbon 16, calcium hydroxide 17, and manganese dioxide 18, harmful gases generated during the mixing and stirring process can be effectively adsorbed and neutralized. Activated carbon 16 has extremely high adsorption capacity and can capture organic pollutants in the gas; calcium hydroxide 17 can neutralize acidic gases, such as sulfur dioxide and hydrogen chloride; and manganese dioxide 18 can further oxidize and decompose residual harmful gases, ensuring that the emitted gas meets environmental protection standards. In addition, the gas treatment chamber 8 is equipped with multiple partitions inside, which allow the gas to change direction multiple times within the chamber, extending the residence time of the gas and thus improving treatment efficiency.
[0039] Working principle and usage process:
[0040] Before using the environmentally friendly recycled concrete and asphalt precision mixing equipment, first ensure that all components are in normal working order. The operator should check that the mixing tank 1, concrete mixing tank 2, and gas handling tank 8 are clean and free of foreign objects, and confirm that the power connections of the variable frequency motors A11 and B12 are normal.
[0041] First, turn on the variable frequency motor A11 to start rotating the mixing shaft A13. Then, add an appropriate amount of concrete raw materials into the concrete mixing tank 2 through the concrete inlet 5. At the same time, turn on the variable frequency motor B12 to start rotating the mixing shaft B15, and add an appropriate amount of asphalt material into the mixing tank 1 through the asphalt inlet 7. Because the mixing shaft A13 is larger than the mixing shaft B15 and has fewer mixing blades, its mixing speed is relatively slow, making it suitable for large-particle concrete raw materials. On the other hand, the mixing shaft B15, due to its smaller size and more mixing blades, is suitable for small-particle asphalt materials, enabling a finer mixing.
[0042] During the mixing process, the mixture from concrete mixing tank 2 enters mixing tank 1 through connection port 14, ensuring that concrete and asphalt are fully mixed. Simultaneously, activated carbon 16, calcium hydroxide 17, and manganese dioxide 18 in gas treatment tank 8 effectively adsorb and neutralize harmful gases generated during mixing, ensuring a safe operating environment.
[0043] Once the mixture reaches the predetermined homogeneity, the operator can observe the mixing effect through the transparent glass 3. After confirming that there is no obvious stratification or particle aggregation, the variable frequency motors A11 and B12 are turned off. Subsequently, the discharge port 10 is opened to discharge the homogeneously mixed recycled concrete and asphalt mixture for road paving or other construction projects.
[0044] Through the above steps, this environmentally friendly recycled concrete and asphalt precision mixing device can complete the mixing work efficiently and in an environmentally friendly manner, which not only improves the utilization rate of materials, but also reduces environmental pollution.
[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.
Claims
1. An environmentally friendly precision mixing device for recycled concrete and asphalt, comprising a mixing tank (1), a concrete mixing tank (2), and a connection port (14), characterized in that: The top of the concrete mixing tank (2) is provided with a motor housing A (4) and a concrete inlet (5). The upper end of the mixing tank (1) is provided with a motor housing B (6) and an asphalt inlet (7). A gas treatment box (8) is installed on the outer wall of the mixing tank (1). One end of the gas treatment box (8) is connected to an exhaust pipe (9). A transparent glass (3) is installed at the front end of the mixing tank (1). A discharge port (10) is installed at the bottom of the outer wall of the mixing tank (1). A variable frequency motor A (11) is installed inside the motor housing A (4). A stirring shaft A (13) is connected to the bottom of the variable frequency motor A (11). A variable frequency motor B (12) is provided inside the motor housing B (6). A stirring shaft B (15) is connected to the bottom of the variable frequency motor B (12). Activated carbon (16), calcium hydroxide (17), and manganese dioxide (18) are provided inside the gas treatment box (8).
2. The environmentally friendly recycled concrete and asphalt precision mixing device according to claim 1, characterized in that: The concrete mixing tank (2) is integrally connected to the outer wall of the mixing tank (1), the motor housing A (4) is fixedly installed on the top of the concrete mixing tank (2), and the concrete inlet (5) is integrally connected to the top of the concrete mixing tank (2).
3. The environmentally friendly recycled concrete and asphalt precision mixing device according to claim 1, characterized in that: The motor housing B (6) is fixedly installed on the top of the mixing tank (1), the asphalt inlet (7) is integrally connected to the top of the mixing tank (1), the transparent glass (3) is fixedly installed on the front outer wall of the mixing tank (1), and the discharge port (10) is fixedly installed on the bottom of the outer wall of the mixing tank (1).
4. The environmentally friendly recycled concrete and asphalt precision mixing device according to claim 1, characterized in that: The variable frequency motor A (11) is fixedly installed inside the motor housing A (4), the stirring shaft A (13) is connected to the bottom of the variable frequency motor A (11), and the connection port (14) is opened between the mixing tank (1) and the concrete mixing tank (2).
5. The environmentally friendly recycled concrete and asphalt precision mixing device according to claim 1, characterized in that: The variable frequency motor B (12) is fixedly installed inside the motor housing B (6). The stirring shaft B (15) is connected to the bottom of the variable frequency motor B (12). The size of the stirring shaft A (13) is larger than that of the stirring shaft B (15). The number of stirring blades of the stirring shaft A (13) is less than the number of stirring blades of the stirring shaft B (15).
6. The environmentally friendly recycled concrete and asphalt precision mixing device according to claim 1, characterized in that: The gas treatment box (8) is fixedly connected to the outer wall of the mixing tank (1), the gas outlet pipe (9) is fixedly connected to the outer wall of the gas treatment box (8), and the activated carbon (16), calcium hydroxide (17) and manganese dioxide (18) are sequentially distributed inside the gas treatment box (8).