Double-helix concrete stirring tank
By designing staggered double helix blades and independent drive components in the concrete mixing tank, the problem of uneven mixing in traditional mixing equipment is solved, achieving efficient and uniform mixing and the stability of the mixing tank, thereby improving concrete quality and construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN SHIYUE BUILDING MATERIALS EQUIP CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-04-24
AI Technical Summary
Traditional concrete mixing equipment suffers from uneven mixing and poor mixing effect when efficiently and uniformly mixing and processing high-viscosity, large-particle materials, which affects the quality and progress of the project.
The double-helix concrete mixing tank is designed with staggered helical blades on the first and second mixing rods, with opposite helical directions and different pitches. It is equipped with an independent drive assembly to control the rotation speed. Combined with wear-resistant coating, guide plate and anti-stick coating, it forms a multi-stage mixing zone to improve mixing efficiency and quality.
It achieves efficient and uniform mixing of concrete, improves mixing efficiency and quality, reduces blade wear, lowers energy consumption, and ensures the stability and safety of the mixing process.
Smart Images
Figure CN224158623U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete mixing equipment technology, and in particular to a double-helix concrete mixing tank. Background Technology
[0002] Concrete mixing equipment is an indispensable tool in modern construction, widely used in various construction sites. With the rapid development of urban construction, the requirements for concrete quality and production efficiency are becoming increasingly stringent. Traditional concrete mixing equipment mainly uses a single spiral blade or a single mixing rod for mixing operations. While this can meet basic mixing needs, it has significant shortcomings in terms of efficient and uniform mixing. Furthermore, traditional mixing equipment is prone to uneven mixing and poor mixing effects when handling high-viscosity, large-particle materials, seriously affecting the quality and progress of the project.
[0003] Currently, to improve concrete mixing performance, the industry typically employs the following methods: First, using traditional mixing tanks with multiple mixing arms to increase mixing intensity by increasing the number of arms; second, using multi-stage mixing devices to improve mixing uniformity through segmented mixing; and third, improving the design of the mixing blades, such as changing the blade shape or increasing the number of blades, to adapt to different types of concrete raw materials. These methods improve mixing performance to some extent, but they still cannot completely solve the aforementioned problems.
[0004] However, existing mixing equipment generally suffers from insufficient mixing and poor mixing effect, and concrete easily hardens during transportation due to the long transportation time. Therefore, there is an urgent need for a new type of mixing equipment that can further improve the uniformity and reliability of mixing while ensuring mixing efficiency. Utility Model Content
[0005] This application provides a double-helix concrete mixing tank, which facilitates thorough mixing of concrete during transportation.
[0006] This application provides a double-helix concrete mixing tank, which adopts the following technical solution:
[0007] A double-helix concrete mixing tank includes a tank body, in which a first stirring rod and a second stirring rod are respectively disposed. The first stirring rod and the second stirring rod are respectively spirally distributed with first spiral blades and second spiral blades. The first spiral blades and the second spiral blades are arranged alternately along the axial direction to form a multi-stage mixing zone. The spirally distributed blades on the first spiral blades and the second spiral blades have opposite directions and different pitches. The ends of the first stirring rod and the second stirring rod are provided with the same driving assembly, which is used to drive the first stirring rod and the second stirring rod to rotate.
[0008] By adopting the above technical solution, this utility model designs a double-helix concrete mixing tank, which achieves efficient and uniform mixing of concrete during use. The first and second helical blades are arranged alternately along the axial direction with different pitches, allowing the material to be repeatedly tumbled and mixed in multiple mixing zones, thereby improving mixing efficiency and quality.
[0009] Preferably, the surfaces of the first and second helical blades are provided with a wear-resistant coating.
[0010] By adopting the above technical solution, the surfaces of the first and second helical blades are coated with a wear-resistant coating, which effectively improves the service life of the blades, reduces the maintenance frequency caused by wear, and ensures the stability of long-term continuous operation. At the same time, the wear-resistant coating can also reduce the friction between the blades and concrete, reduce energy consumption, and improve mixing efficiency.
[0011] Preferably, the drive assembly includes a drive motor disposed at the bottom of the tank, and the first and second helical blades are respectively connected to independent drive motors to achieve different speed control.
[0012] By adopting the above technical solution, the independently driven first and second helical blades can achieve different speed controls during use, thereby better mixing concrete at different locations. This design not only improves mixing efficiency but also ensures uniform mixing of materials during the mixing process, further enhancing the quality of the concrete.
[0013] Preferably, the top of the tank is provided with a feed inlet, and a sealing cap is hinged to the feed inlet. The sealing cap is used to seal the tank and has a pull rod on its surface.
[0014] By adopting the above technical solution, the feed inlet at the top of the tank facilitates the addition of raw materials during use, and the hinged sealing cap effectively prevents material splashing or external impurities from entering during stirring, ensuring a clean and safe stirring environment. The pull rod on the surface of the sealing cap makes it easy for operators to open and close, improving the convenience and safety of equipment use.
[0015] Preferably, a guide plate is provided on the inner wall of the tank, which is used to guide the added concrete to the spiral blades, thereby improving the mixing efficiency.
[0016] By adopting the above technical solution, a guide plate is provided on the inner wall of the tank during use. The guide plate can effectively guide the added concrete to the spiral blades, so that the concrete is more evenly distributed in the mixing area of each level during the mixing process, which significantly improves the mixing efficiency.
[0017] Preferably, the inner wall of the tank is provided with an anti-stick coating, which is used to prevent concrete from sticking to the inner wall of the tank during mixing.
[0018] By adopting the above technical solution, the anti-stick coating can effectively reduce the adhesion of concrete to the inner wall of the tank during use, thereby reducing the difficulty and time cost of cleaning, and avoiding the problem of reduced mixing efficiency caused by concrete adhesion.
[0019] Preferably, the tank body is provided with a discharge port at the bottom, and a gate is provided at the discharge port to control the discharge speed of the material.
[0020] By adopting the above technical solution, the discharge port and gate at the bottom of the tank can effectively control the discharge speed of materials during use, avoiding the problem of concrete waste or construction inconvenience caused by excessive discharge, and improving the operational flexibility and work efficiency of the equipment.
[0021] Preferably, a mounting bracket is provided on the outside of the tank body, which is used to stably install the mixing tank on the pump truck.
[0022] By adopting the above technical solution, the mounting frame can stably fix the mixing tank on the pump truck during use, which improves the overall stability of the equipment and avoids shaking or damage to the mixing tank caused by vibration or bumps during transportation, thereby ensuring the safety and reliability of the construction process.
[0023] In summary, this application has the following beneficial effects:
[0024] 1. The present invention relates to a double-helix concrete mixing tank, wherein the first helix blade and the second helix blade are arranged alternately along the axial direction to form a multi-stage mixing zone, which enables the material to be fully mixed in different areas, significantly improving the uniformity and efficiency of mixing.
[0025] 2. The present invention relates to a double-helix concrete mixing tank, wherein the blades on the first helix blade and the second helix blade have opposite directions and different pitches. This design causes complex flow field changes in the material during the mixing process, effectively avoiding the mixing dead zone of high viscosity and large particle materials, and improving the mixing effect.
[0026] 3. The present invention discloses a double-helix concrete mixing tank, wherein the driving component is used to drive the first and second stirring rods to rotate, thereby realizing different speed control of the two stirring rods and further enhancing the flexibility and adaptability of mixing. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of an embodiment;
[0028] Figure 2This is a schematic diagram showing the internal structure of the tank in the embodiment;
[0029] Explanation of reference numerals in the attached drawings: 1. Tank body; 2. First stirring rod; 3. Second stirring rod; 4. First spiral blade; 5. Second spiral blade; 6. Drive assembly; 61. Drive motor; 7. Feed inlet; 8. Sealing cover; 9. Tie rod; 10. Guide plate; 11. Anti-stick coating; 12. Discharge port; 13. Mounting frame. Detailed Implementation
[0030] The present invention will be further described in detail below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," "lower," "bottom," and "top" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.
[0031] This utility model discloses a double-helix concrete mixing tank, such as Figure 1 and Figure 2 As shown, the device includes a tank body 1, inside which a first stirring rod 2 and a second stirring rod 3 are respectively installed. The tank body 1 can be made of high-strength steel, possessing good corrosion resistance and pressure resistance. The first stirring rod 2 and the second stirring rod 3 can be fixed to the inner wall of the tank body 1 by welding or threaded connection to ensure its stability. The first stirring rod 2 and the second stirring rod 3 are respectively spirally distributed with first spiral blades 4 and second spiral blades 5. The first spiral blades 4 and the second spiral blades 5 are arranged alternately along the axial direction to form a multi-stage stirring zone. The spirally distributed blades on the first spiral blades 4 and the second spiral blades 5 have opposite directions, and the pitches of the first spiral blades 4 and the second spiral blades 5 are different. The surfaces of the first spiral blades 4 and the second spiral blades 5 are coated with a wear-resistant coating. The materials of the first spiral blades 4 and the second spiral blades 5 can be stainless steel or carbon steel, and their surfaces are coated with a wear-resistant coating to extend their service life. The wear-resistant coating can be a ceramic coating or a hard alloy coating, both of which have extremely high hardness and wear resistance. The opposite directions of the first spiral blades 4 and the second spiral blades 5 generate a vortex effect during stirring, allowing the material to be mixed more evenly within the tank body 1. Furthermore, because the pitches of the first helical blade 4 and the second helical blade 5 are different, the shear forces they generate during rotation are also different, thus better adapting to concrete in different locations and enabling it to mix thoroughly.
[0032] Both the first stirring rod 2 and the second stirring rod 3 are equipped with identical drive components 6 at their ends. These drive components 6 drive the first stirring rod 2 and the second stirring rod 3 to rotate. The drive component 6 includes a drive motor 61 located at the bottom of the tank 1. The first spiral blade 4 and the second spiral blade 5 are respectively connected to independent drive motors 61 to achieve different speed controls. This design allows for flexible adjustment of the stirring speed to adapt to different stirring needs. When rapid stirring of low-viscosity materials is required, the speed of both can be increased; when slow stirring of high-viscosity materials is required, the speed can be appropriately reduced.
[0033] The tank body 1 has a feed inlet 7 at the top, with a sealing cover 8 hinged to it. The sealing cover 8 seals the tank body 1 and has a pull rod 9 on its surface. The design of the sealing cover 8 not only prevents external impurities from entering the tank body 1 but also reduces concrete overflow. The pull rod 9 facilitates the opening and closing of the sealing cover 8 by operators, improving work efficiency. A guide plate 10 is installed on the inner wall of the tank body 1. The guide plate 10 can be wavy or serrated to guide the material along a specific path, avoiding the formation of dead zones. An anti-stick coating 11 is also installed on the inner wall of the tank body 1 to prevent concrete from sticking to the inner wall during mixing. The anti-stick coating 11 can be made of polytetrafluoroethylene or other similar high-performance polymer materials, which have excellent anti-stick properties and chemical stability. The tank body 1 has a discharge port 12 at the bottom, with a gate at the discharge port 12 to control the material discharge rate. The gate can be opened and closed electrically or manually to adjust the discharge rate as needed. The electric gate can be automatically controlled by preset opening and closing times via a controller; the manual gate can be designed as a knob for simple and convenient operation. A mounting bracket 13 is provided on the outside of the tank body 1 to stably mount the mixing tank onto the pump truck. The mounting bracket 13 can be made of aluminum alloy, which is both lightweight and strong. The support points can be located at the four corners and fixed to the pump truck with bolts.
[0034] Working Principle: This utility model designs a double-helix concrete mixing tank. By staggering the first helical blades 4 and second helical blades 5 on the first mixing rod 2 and the second mixing rod 3 inside the tank body 1, and making their directions opposite and their pitches different, a highly efficient multi-stage mixing effect is achieved, improving the efficiency and effect of concrete mixing. Simultaneously, by incorporating wear-resistant coatings, guide plates 10, and anti-stick coatings 11, the working efficiency and durability of the mixing tank are further improved. The overall design not only solves the problems of uneven mixing and poor mixing effect existing in traditional mixing equipment, but also...
[0035] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A twin-screw concrete mixing drum, characterized by: The device includes a tank (1), in which a first stirring rod (2) and a second stirring rod (3) are respectively provided. The first stirring rod (2) and the second stirring rod (3) are respectively spirally distributed with a first spiral blade (4) and a second spiral blade (5). The first spiral blade (4) and the second spiral blade (5) are arranged alternately along the axial direction to form a multi-stage stirring zone. The spirally distributed blades on the first spiral blade (4) and the second spiral blade (5) are in opposite directions, and the pitch of the first spiral blade (4) and the second spiral blade (5) is different. The ends of the first stirring rod (2) and the second stirring rod (3) are provided with the same driving component (6). The driving component (6) is used to drive the first stirring rod (2) and the second stirring rod (3) to rotate.
2. A twin-screw concrete mixing tank according to claim 1, characterized in that: The surfaces of the first helical blade (4) and the second helical blade (5) are provided with a wear-resistant coating.
3. A twin-screw concrete mixer according to claim 1, wherein: The drive assembly (6) includes a drive motor (61) located at the bottom of the tank (1), and the first helical blade (4) and the second helical blade (5) are respectively connected to independent drive motors (61) to achieve different speed control.
4. A twin-screw concrete mixing tank as claimed in claim 1, wherein: The tank (1) is provided with a feed inlet (7) at the top, and a sealing cover (8) is hinged to the feed inlet (7). The sealing cover (8) is used to seal the tank (1), and a pull rod (9) is provided on its surface.
5. A twin-screw concrete mixing tank as claimed in claim 1, wherein: The inner wall of the tank (1) is provided with a guide plate (10), which is used to guide the added concrete to the spiral blades, thereby improving the mixing efficiency.
6. A twin-screw concrete mixing tank as claimed in claim 1, wherein: The inner wall of the tank (1) is provided with an anti-stick coating (11), which is used to prevent concrete from sticking to the inner wall of the tank (1) during mixing.
7. A twin-screw concrete mixing tank as claimed in claim 1, wherein: The tank (1) has a discharge port (12) at the bottom, and a gate is provided at the discharge port (12) to control the discharge speed of the material.
8. A twin-screw concrete mixing tank as defined in claim 1, wherein: A mounting bracket (13) is provided on the outside of the tank (1), which is used to stably install the mixing tank on the pump truck.