Multi-shaft linkage mixing stirrer structure for building construction

Abstract

This utility model discloses a multi-axis linkage mixing mixer structure for building construction, including a mixing tank with a V-shaped input pipe and an output pipe connected at the top, forming a Y-shaped structure. Spiral fan-shaped blades are installed in the input pipe, output pipe, and inside the mixing tank. The mixing tank has a partition plate, dividing it into a first chamber connected to the input pipe and a second chamber connected to the output pipe. The output pipe and the fan-shaped blades in the second chamber form a closed material circulation channel. A through hole is located at the lower end of the partition plate, and an arc-shaped discharge plate is located at the bottom of the first chamber. Material enters the first chamber through the input pipe, passes through the through hole and discharge plate into the second chamber, and then flows back to the top of the mixing tank through the output pipe for circulation, achieving efficient and uniform mixing and solving the problems of uneven mixing and low efficiency in existing equipment.

Description

Technical Field

[0001] This utility model provides a mixer structure, and particularly relates to a multi-axis linkage mixing mixer structure for building construction. Background Technology

[0002] Construction mixing equipment is a key piece of equipment for achieving uniform mixing of raw materials such as cement, sand, gravel, and admixtures. Through the coordination of material conveying and mixing actions, it provides a stable mix ratio for building materials such as concrete and mortar. In existing technologies, such equipment generally adopts a basic architecture of "single-channel conveying + single-tank mixing": the conveying pipe is responsible for introducing the raw materials into the mixing tank, and the mixing is completed in the tank by single-shaft or multi-shaft mixing blades (such as paddles or spiral blades driven by a vertical rotating shaft). For example, a straight conveying pipe connects to the mixing tank, and the blades inside the tank are driven by a single rotating shaft to agitate the materials.

[0003] However, the above structure has core functional defects: First, the functions of conveying and mixing are separated—the conveying pipe only serves as a "flow guide channel," and the material does not undergo pre-mixing within the pipe. After entering the mixing tank, due to the single flow path (such as only spreading around the mixing axis), mixing dead zones (such as the accumulation of viscous materials) are easily formed in the corners of the tank. Second, the material circulation efficiency is low—single-tank mixing relies on the "local stirring" of the blades to achieve mixing, lacking a circulation channel design that runs through "conveyor-mixing-recirculation." The raw materials are difficult to repeatedly interact between the conveying and mixing stages, resulting in poor mixing uniformity and long mixing time (especially for multi-component, high-viscosity materials). Utility Model Content

[0004] In order to solve the above problems, this application provides a multi-axis linkage mixing mixer structure for building construction, which solves the problems of uneven mixing and low efficiency of existing equipment.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a multi-axis linkage mixing mixer structure for building construction, including a mixing tank, wherein an input pipe, an output pipe, a spiral fan-shaped blade plate and a partition plate are connected above the mixing tank;

[0006] The input pipe and the output pipe are arranged in a V-shape and connected to the top of the mixing tank, together forming a Y-shaped connection structure;

[0007] The spiral fan-shaped blades are respectively disposed inside the input pipe, the output pipe and the mixing tank, and extend spirally along the axial direction of the pipe or tank;

[0008] The partition plate is disposed inside the mixing tank, dividing the interior of the mixing tank into a first chamber connected to the input pipe and a second chamber connected to the output pipe. The spiral fan-shaped blades in the output pipe are connected end to end with the spiral fan-shaped blades in the second chamber to form a closed material circulation channel.

[0009] Preferably, the input pipe and the output pipe are detachably connected to the top of the mixing tank by a bolted connection structure, and the connection part is provided with a matching flange.

[0010] Preferably, the spiral fan blades have the same spiral direction and are continuously spirally wound along the inner wall of the input pipe, output pipe and mixing tank, forming a uniform material conveying gap between adjacent spiral rings.

[0011] Preferably, the partition plate is a vertical plate structure, with one side fixedly connected to the inner wall of the mixing tank and the other side extending to the central area of ​​the mixing tank, and a through hole provided at the lower end of the partition plate.

[0012] Preferably, the mixing tank is provided with an arc-shaped feed plate placed on one side of the partition plate and in the first chamber, the feed plate assisting the raw materials to enter the second chamber.

[0013] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0014] The multi-axis linkage mixing mixer structure used in this building construction utilizes a Y-shaped interconnected V-shaped input pipe + output pipe layout, combined with spiral fan-shaped blades extending axially inside the pipe body and mixing tank, to simultaneously achieve material conveying and mixing. A vertical partition plate inside the mixing tank divides the tank cavity into a first chamber connected to the input pipe and a second chamber connected to the output pipe. The fan-shaped blades of the output pipe and the second chamber are connected end-to-end to form a closed material circulation channel. Simultaneously, the through-hole at the lower end of the partition plate and the arc-shaped discharge plate inside the first chamber assist in the flow of material across the chambers, allowing the material to continuously circulate and mix between the two chambers and the pipe body during spiral propulsion. This multi-axis linkage spiral conveying + circulating mixing structure breaks through the limitations of traditional single-channel, single-function modules, achieving a highly efficient and uniform mixing effect.

[0015] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the structure of a multi-axis linkage mixing mixer for building construction according to the present invention;

[0017] Figure 2 This is an exploded view of the structure of a multi-axis linkage mixing mixer for building construction according to this utility model;

[0018] Figure 3 This is a cross-sectional view of the structure of a multi-axis linkage mixing mixer for building construction according to this utility model;

[0019] Figure 4 This is a cross-sectional view of the mixing tank portion of a multi-axis linkage mixing mixer structure for building construction according to this utility model.

[0020] As shown in the figure:

[0021] 1. Mixing tank; 2. Input pipe; 3. Output pipe; 4. Spiral fan-shaped blades; 5. Divider plate; 6. Through hole; 7. Feed plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0023] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] like Figure 1 and Figure 2 As shown, a detachable Y-shaped connecting assembly is fixed on the top of the mixing tank 1. This assembly is formed by the V-shaped intersection of the input pipe 2 and the output pipe 3. The two pipes are detachably connected to the tank body by bolts and flanges. The inner wall of the pipe and the inner wall of the tank are continuously wound with spiral fan-shaped blades 4 in the same spiral direction. A uniform material conveying gap is maintained between adjacent spiral rings. The whole assembly forms a spiral conveying channel inlet and outlet that can be quickly disassembled and assembled.

[0026] In this embodiment, the input pipe 2 and the output pipe 3 intersect in a V-shape to form a Y-shaped connecting assembly, which is detachably connected to the top of the mixing tank 1 by bolts and flanges. The spiral fan-shaped blade 4 is continuously wound along the inner wall of the input pipe 2, the output pipe 3 and the mixing tank 1, with the spiral direction consistent and the gap between adjacent spiral coils uniform, forming a spiral channel that runs through the pipe body and the tank body.

[0027] The key to implementation lies in the Y-shaped interconnected structure that integrates the bidirectional flow path of materials, with the spiral fan-shaped blades 4 simultaneously undertaking the functions of conveying and mixing. The detachable connection facilitates component maintenance and replacement. The innovation is reflected in the fact that the continuous spiral channel and V-shaped layout solve the problem of inefficient mixing caused by the separation of conveying and mixing in traditional equipment. This allows the material to be continuously sheared and mixed by the spiral during flow, improving the uniformity of mixing. At the same time, the integrated structure reduces dead corners where materials stagnate, improving mixing efficiency.

[0028] like Figure 3 and Figure 4 As shown, a vertically placed rigid partition plate 5 divides the space into a first chamber and a second chamber. A through hole 6 is provided at the lower end of the partition plate 5. An arc-shaped feeding plate 7 is installed next to the bottom of the first chamber. The second chamber is connected end to end to the spiral fan-shaped blade plate 4 in the output pipe 3, forming a closed material circulation loop that passes through the through hole 6 and is guided by the feeding plate 7.

[0029] In this embodiment, the vertically placed rigid partition plate 5 inside the tank divides the space inside the mixing tank 1 into a first chamber and a second chamber. One side of the partition plate 5 is fixed to the inner wall of the mixing tank 1, and the other side extends to the central area inside the tank. The through hole 6 at its lower end connects the two chambers. The arc-shaped feed plate 7 is installed at a position close to the bottom of the first chamber and cooperates with the partition plate 5. The second chamber is connected end to end to the spiral fan-shaped blade 4 in the output pipe 3, forming a closed material circulation loop that passes through the through hole 6 and is guided by the feed plate 7.

[0030] In this implementation plan, the key features are the vertical placement of the partition plate 5 to precisely divide the chambers, the through holes 6 and the feeding plate 7 to ensure the orderly flow of materials between the two chambers, and the connection of the spiral fan-shaped blades 4 to ensure smooth circulation. The innovation lies in the fact that through this structural combination, the materials can be mixed multiple times in the circulation. The partition plate 5 avoids insufficient mixing of materials directly, and the through holes 6 and the feeding plate 7 solve the problem of obstructed material flow, thereby improving mixing efficiency and uniformity and effectively making up for the shortcomings of the existing device.

[0031] It should be noted that all spiral fan blades are connected to a corresponding drive motor.

[0032] In actual use, this device requires a drive motor (connected to the central shaft of the spiral fan-shaped blades via a coupling) to provide rotational power. A reducer can be added to the motor output to adjust the spiral speed. The outer wall of the tank needs to be fitted with a steel support frame (such as welded angle steel) to fix the overall structure. The inlet of the input pipe can be connected to a material metering pump or storage silo. The outlet of the output pipe can be equipped with an electromagnetic control valve to regulate the circulation flow. The mixing tank, input pipe, output pipe, and spiral fan-shaped blades can be made of 304 stainless steel (wear-resistant and rust-resistant), and the partition plate can be made of high manganese steel (to enhance structural strength). Nitrile rubber sealing rings need to be added to the flange connections to achieve a seal. Through the combination of the above-mentioned existing technology, devices, and materials, the stable operation of this mixer in construction scenarios can be ensured.

[0033] Specifically, during installation, this solution allows for fixing to a concrete foundation or mobile tooling platform (existing movable frame) via pre-drilled bolt holes at the bottom of the mixing tank. A hoisting device (such as a small crane) is used to align the input and output pipes to the mixing tank via flanges, and then tighten them with M12 high-strength bolts (grade 8.8). A 5mm thick nitrile rubber sealing ring is embedded in the flange gap, and then tightened diagonally with a torque wrench (ensuring a sealing pressure ≥0.6MPa). Before use, the feed end of the input pipe must be connected to a material pretreatment device (such as a sand and gravel vibrating screen or a cement screw conveyor) via a flexible hose. The discharge end of the output pipe should be selectively connected to a storage tank or a return pipe (the return valve should be closed when circulation is required). A speed sensor (monitoring the speed of the spiral fan blade shaft, range 0-300r / min) and a level gauge (such as an ultrasonic level gauge to monitor the material height inside the tank) are installed on the outer wall of the mixing tank. During operation, the drive motor is started first (the speed is set to 150-200r / min via the frequency converter control cabinet). After the spiral fan blades have rotated stably, the pretreatment device is activated to feed material into the input pipe. The material is pushed into the first chamber by the spiral fan blades through the input pipe. Under the guidance of the arc-shaped discharge plate, part of the material falls directly into the bottom of the first chamber, while the rest enters the second chamber through the through hole at the lower end of the partition plate. The material in the second chamber is pushed to the output pipe by the spiral fan blades. If circulation is required, the discharge valve is closed to allow the material to flow back to the top of the mixing tank through the output pipe and re-enter the first chamber. After mixing is completed, the discharge valve is opened to discharge the material. During routine maintenance, the input and output pipes can be removed by disassembling the flange bolts. A high-pressure cleaner (pressure 5-8MPa) can be used to wash the spiral fan blades and the inner wall of the tank. Regularly (every 50 hours of operation), check the welded joints of the fan blades (such as the weld point between the spiral blade and the central shaft) for cracks and replace worn sealing rings (it is recommended to replace them every 300 hours). Through the above-mentioned existing installation and fixing, material pretreatment, sensor monitoring, control adjustment and maintenance methods, this device can be stably adapted to the mixing scenarios in construction.

[0034] Furthermore, this device includes the following specific embodiments: After the material enters from the inlet of the input pipe, it is conveyed to the first chamber of the mixing tank, which is divided by a partition plate, under the spiral propulsion action of the spiral fan-shaped blades inside the input pipe; part of the material entering the first chamber flows downward under its own gravity and the driving force of the spiral fan-shaped blades inside the first chamber, and enters the second chamber through the through hole at the lower end of the partition plate; the other part is guided more smoothly across the edge of the partition plate into the second chamber under the guidance of the arc-shaped feed plate inside the first chamber; the material flowing into the second chamber moves upward under the push of the spiral fan-shaped blades inside the chamber, and after connecting with the spiral fan-shaped blades in the output pipe, it is continuously conveyed to the output pipe, and finally flows back to the top of the mixing tank along the spiral channel of the output pipe, and re-enters the first chamber to participate in the cycle, forming a closed-loop conveying route of "input pipe → first chamber → (through hole / feed plate guidance) second chamber → output pipe".

[0035] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A multi-axis linkage mixing mixer structure for building construction, comprising a mixing tank (1), characterized in that: The mixing tank (1) is connected to an input pipe (2), an output pipe (3), a spiral fan-shaped plate (4), and a partition plate (5) at the top. The input pipe (2) and the output pipe (3) are arranged in a V-shape and connected to the top of the mixing tank (1), together forming a Y-shaped connection structure; The spiral fan-shaped blades (4) are respectively disposed inside the input pipe (2), the output pipe (3) and the mixing tank (1), and extend spirally along the axial direction of the pipe or tank. The partition plate (5) is disposed inside the mixing tank (1) to divide the inside of the mixing tank (1) into a first chamber connected to the input pipe (2) and a second chamber connected to the output pipe (3). The spiral fan-shaped blade (4) in the output pipe (3) is connected end to end with the spiral fan-shaped blade (4) in the second chamber to form a closed material circulation channel.

2. The multi-axis linkage mixing mixer structure for building construction according to claim 1, characterized in that, The input pipe (2) and output pipe (3) are detachably connected to the top of the mixing tank (1) by a bolted connection structure, and the connection part is provided with a matching flange.

3. The multi-axis linkage mixing mixer structure for building construction according to claim 1 or 2, characterized in that, The spiral fan blades (4) have the same spiral direction and are continuously spirally wound along the inner wall of the input pipe (2), output pipe (3) and mixing tank (1), forming a uniform material conveying gap between adjacent spiral rings.

4. The multi-axis linkage mixing mixer structure for building construction according to claim 1, characterized in that, The partition plate (5) is a vertical plate structure. One side of it is fixedly connected to the inner wall of the mixing tank (1), and the other side extends to the central area of ​​the mixing tank (1). The lower end of the partition plate (5) is provided with a through hole (6).

5. The structure of the multi-axis linkage mixing mixer for building construction according to claim 1, characterized in that, The mixing tank (1) is provided with an arc-shaped feeding plate (7) placed on one side of the partition plate (5) and in the first chamber. The feeding plate (7) assists the raw materials to enter the second chamber.

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