A high-efficiency mixing and stirring device for refractory castables

Abstract

This utility model relates to the field of mixing and stirring technology, and in particular to a high-efficiency mixing and stirring device for refractory castables. This utility model provides such a device, comprising a support frame, a controller, a mixing tank, a motor, a stirring rod, a metering valve, and a water inlet pipe. The controller is mounted on the front of the support frame, and the mixing tank is fixedly connected to the support frame. A feed inlet is located on the upper left side of the mixing tank. The motor is mounted in the middle of the upper part of the mixing tank and is electrically connected to the controller. A stirring rod is fixedly connected to the motor output shaft, and the stirring rod is located in the middle of the mixing tank. A water inlet pipe is connected to and communicates with the upper right side of the mixing tank. A metering valve is mounted on the water inlet pipe and is electrically connected to the controller. This utility model uses the controller to precisely control the output of a fixed amount of water from the metering valve within a set time, effectively improving water addition efficiency and ensuring the stability and accuracy of water usage, thereby enhancing the consistency and reliability of the refractory castable mixing quality.

Description

Technical Field

[0001] This utility model relates to the field of mixing and stirring technology, and in particular to a high-efficiency mixing and stirring device for refractory castables. Background Technology

[0002] Refractory castable is an unshaped refractory material made by mixing refractory aggregates, fine powders, binders, and appropriate additives in a certain proportion. It has the characteristics of not requiring pre-forming and sintering, convenient construction, and strong adaptability. This material does not require pre-forming and sintering and can be directly mixed and poured on site according to actual needs. It has the advantages of convenient construction, strong adaptability, and high construction efficiency. It is widely used in the lining construction and local repair of kilns, boilers, and other high-temperature equipment in metallurgy, building materials, power and other industries, and can effectively meet the usage requirements of complex structures and different working conditions.

[0003] In the preparation of refractory castables, it is essential to ensure thorough mixing of various raw materials to guarantee the stable performance and uniform distribution of the final product. The amount of water added plays a crucial role in quality control. Insufficient water leads to incomplete mixing, accelerated hardening, and consequently, a loose structure, poor fluidity, and reduced workability. Conversely, excessive water can cause material segregation and the formation of numerous pores during molding, significantly reducing the material's high-temperature resistance and mechanical strength. Therefore, precise control of water addition is a key aspect of ensuring the quality of refractory castables. However, currently, most production processes still rely on manual water addition, which is not only inefficient but also difficult to accurately control, easily causing batch-to-batch performance variations and affecting product quality stability.

[0004] Therefore, it is necessary to design a high-efficiency mixing and stirring device for refractory castables to solve the above-mentioned technical problems. Utility Model Content

[0005] To overcome the shortcomings of low efficiency and unstable dosage of manual water addition, the technical problem to be solved is to provide a high-efficiency mixing and stirring device for refractory castables.

[0006] The technical solution is as follows: A high-efficiency mixing and stirring device for refractory castables includes a support frame, a controller, a mixing tank, a motor, a stirring rod, a metering valve, a water inlet pipe, and a discharge valve. The controller is installed at the front of the support frame, and the mixing tank is fixedly connected to the support frame. A feed inlet is opened on the upper left side of the mixing tank. The motor is installed in the middle of the upper part of the mixing tank and is electrically connected to the controller. A stirring rod is fixedly connected to the output shaft of the motor and is located in the middle of the mixing tank. A water inlet pipe is connected and communicated to the upper right side of the mixing tank. A metering valve is installed on the water inlet pipe and is electrically connected to the controller. A discharge valve is installed at the bottom of the mixing tank.

[0007] Furthermore, the lower part of the mixing tank has a conical protrusion.

[0008] Furthermore, the inner wall of the mixing tank is coated with a ceramic coating.

[0009] Furthermore, it also includes a ring-shaped pipe. A ring-shaped pipe is installed on the upper side inside the mixing tank, and the right side of the ring-shaped pipe is connected to and communicates with the water inlet pipe. Several water outlets are opened along the inner circumference of the ring-shaped pipe.

[0010] Furthermore, it also includes a guide bucket, which is fixedly connected to the upper part of the mixing tank. The guide bucket is conical and protruding, and is located above the annular tube.

[0011] Furthermore, it also includes a scraper, with the upper part of the stirring rod fixedly connected to the scraper, and the scraper is in contact with the inner wall of the stirring tank.

[0012] The beneficial effects are as follows: 1. This utility model can accurately control the output of a fixed amount of water from the quantitative valve within a set time by the controller, which can effectively improve the water addition efficiency and ensure the stability and accuracy of the water consumption, thereby improving the consistency and reliability of the mixing quality of refractory castable.

[0013] 2. The bottom of the mixing tank with a conical protrusion structure makes the refractory castable discharge more concentrated and smooth, effectively reducing material residue. At the same time, the ceramic coating on the inner wall of the mixing tank can effectively protect the device from corrosion by the refractory castable during the mixing process, thereby significantly improving the durability and service life of the equipment and ensuring the long-term stable operation and good working performance of the device.

[0014] 3. This utility model uses a ring-shaped pipe to make the water injection process more uniform, effectively reducing the clumping of refractory castable during the mixing process, improving mixing efficiency and the stability of the finished product. At the same time, the conical protruding guide bucket allows the refractory castable to fall smoothly, avoiding problems such as uneven mixing or blockage of the water outlet caused by material accumulation, thereby further improving the quality of the refractory castable and the reliability of the device operation.

[0015] 4. This utility model uses a stirring rod to drive the scraper to rotate synchronously, so that the scraper can effectively scrape off the refractory castable adhering to the inner wall of the mixing tank, prevent material adhesion and accumulation, ensure a more uniform and efficient mixing process, reduce material residue, and improve the cleanliness and service life of the equipment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of some parts of the present invention, such as the support, controller, and mixing tank.

[0017] Figure 2 This is a three-dimensional structural diagram of some parts of this utility model, such as the motor, stirring rod, and metering valve.

[0018] Figure 3 This is a three-dimensional structural diagram of some parts of this utility model, such as the water inlet pipe, the discharge valve, and the annular pipe.

[0019] Figure 4 This is a front view of some parts of this utility model, such as the motor, the annular tube, and the guide bucket.

[0020] Figure 5 This is a three-dimensional structural diagram of some parts of this utility model, such as the stirring rod, the discharge valve, and the scraper.

[0021] The parts and their numbers in the diagram are as follows: 1_Bracket, 101_Controller, 2_Mixing Tank, 201_Feed Inlet, 3_Motor, 4_Mixing Rod, 5_Quantitative Valve, 6_Water Inlet Pipe, 7_Discharge Valve, 8_Annular Pipe, 801_Water Outlet, 9_Guide Hopper, 10_Scraper. Detailed Implementation

[0022] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the device includes a support frame 1, a controller 101, a mixing tank 2, a motor 3, a stirring rod 4, a metering valve 5, a water inlet pipe 6, and a discharge valve 7. The controller 101 is mounted on the front of the support frame 1 with screws. The mixing tank 2 is welded to the support frame 1. A feed inlet 201 is provided on the top left side of the mixing tank 2. The motor 3 is mounted on the top of the mixing tank 2 with screws, and the motor 3 is electrically connected to the controller 101. A stirring rod 4 is welded to the output shaft of the motor 3. The stirring rod 4 is located in the middle of the mixing tank 2. The water inlet pipe 6 is connected and communicated to the upper right side of the mixing tank 2. A metering valve 5 is mounted on the water inlet pipe 6 with screws. The metering valve 5 is electrically connected to the controller 101. A discharge valve 7 is installed at the bottom of the mixing tank 2. The bottom of the mixing tank 2 is conical and protruding. The inner wall of the mixing tank 2 is coated with a ceramic coating.

[0023] When using this device for efficient mixing of refractory castables, firstly, refractory aggregates, fine powder, binders, and appropriate additives are poured into the mixing tank 2 through the feed inlet 201 according to a set ratio. Next, the motor 3 is started via the controller 101. The output shaft of the motor 3 drives the stirring rod 4 to rotate clockwise, uniformly mixing the refractory castable in the mixing tank 2. When water needs to be added for further mixing, the water inlet pipe 6 is connected to an external water source. The controller 101 controls the metering valve 5 to automatically open according to the preset water volume and time period, allowing water to flow into the mixing tank 2 in an orderly and quantitative manner. After adding water, the water forms liquid bridges and capillary forces, enhancing the adhesion between particles, effectively breaking up dry material agglomerates, and ensuring that the fine powder and aggregate are fully and evenly distributed; simultaneously, it moistens the surface of the silica sand, improving the solubility. The adhesion between the agent and the material is improved, reducing material stratification and enhancing the flowability during casting. Furthermore, during the mixing process, moisture vaporizes at high temperatures, agitating the material, promoting heat transfer and melting reactions, and carrying out microbubbles to accelerate the clarification and homogenization of the silicate system. Simultaneously, the moist mixture effectively suppresses dust, reduces frictional wear on the inner wall of the mixer from dry material, and extends the equipment's service life. Once the refractory castable is fully and evenly mixed, the discharge valve 7 is opened, allowing the refractory castable to be discharged from the device. The conical convex mixing drum 2 helps to concentrate and facilitate smoother discharge of the refractory castable. The ceramic coating effectively prevents the refractory castable from corroding the mixing drum 2, not only extending the device's service life but also ensuring the continuity and efficiency of the production process.

[0024] like Figure 3 and Figure 4 As shown, it also includes an annular tube 8. The annular tube 8 is installed on the upper side of the inside of the mixing tank 2 by screws, and the right side of the annular tube 8 is connected to and communicates with the water inlet pipe 6. Several water outlets 801 are opened along the inner circumference of the annular tube 8.

[0025] like Figure 3 and Figure 4 As shown, it also includes a guide bucket 9. The guide bucket 9 is welded to the top of the mixing tank 2. The guide bucket 9 is conical and protruding, and the guide bucket 9 is located directly above the annular tube 8.

[0026] like Figure 5 As shown, it also includes a scraper 10. The upper part of the stirring rod 4 is welded with a scraper 10, and the scraper 10 is attached to the inner wall of the stirring tank 2.

[0027] The annular pipe 8 ensures more uniform water injection, guaranteeing that the refractory castable is fully wetted and mixed during stirring. This effectively improves the fluidity and overall uniformity of the material, providing a reliable guarantee for subsequent construction quality. Simultaneously, the uniform water injection method helps reduce material clumping, improves mixing efficiency and the stability of the finished product, further enhancing the performance and durability of the refractory castable in high-temperature environments. The conical guide hopper 9 provides excellent guidance when adding refractory castable, facilitating smooth material flow and effectively preventing refractory castable from accumulating above the annular pipe 8. This avoids uneven mixing or blockage of the outlet 801 of the annular pipe 8 caused by accumulation, significantly improving construction efficiency and the stability of project quality. Simultaneously with the clockwise rotation of the stirring rod 4, the scraper 10 also rotates clockwise, promptly scraping off the refractory castable adhering to the inner wall of the mixing tank 2, preventing material clumping and accumulation, thereby improving mixing efficiency and uniformity, resulting in a more ideal mixing effect.

Claims

1. A high-efficiency mixing and stirring device for refractory castable, characterized in that, The device includes a support (1), a controller (101), a mixing tank (2), a motor (3), a stirring rod (4), a metering valve (5), a water inlet pipe (6), and a discharge valve (7). The controller (101) is installed at the front of the support (1). The mixing tank (2) is fixedly connected to the support (1). The mixing tank (2) has a feed inlet (201) on the upper left side. The motor (3) is installed in the middle of the upper part of the mixing tank (2) and is electrically connected to the controller (101). The stirring rod (4) is fixedly connected to the output shaft of the motor (3). The stirring rod (4) is located in the middle of the mixing tank (2). The water inlet pipe (6) is connected and connected to the upper right side of the mixing tank (2). The metering valve (5) is installed on the water inlet pipe (6) and is electrically connected to the controller (101). The discharge valve (7) is installed at the bottom of the mixing tank (2).

2. The high-efficiency mixing and stirring device for refractory castable according to claim 1, characterized in that, The lower part of the mixing tank (2) is conical and protruding.

3. The high-efficiency mixing and stirring device for refractory castable according to claim 2, characterized in that, The inner wall of the mixing tank (2) is coated with a ceramic coating.

4. The high-efficiency mixing and stirring device for refractory castables according to claim 3, characterized in that, It also includes a ring pipe (8), which is installed on the upper side inside the mixing tank (2). The right side of the ring pipe (8) is connected to the water inlet pipe (6) and is connected to it. Several water outlets (801) are opened along the inner circumference of the ring pipe (8).

5. The high-efficiency mixing and stirring device for refractory castable according to claim 4, characterized in that, It also includes a guide bucket (9), which is fixedly connected to the upper part of the mixing tank (2). The guide bucket (9) is conical and protruding, and is located above the annular tube (8).

6. The high-efficiency mixing and stirring device for refractory castable according to claim 5, characterized in that, It also includes a scraper (10), and the upper part of the stirring rod (4) is fixedly connected to the scraper (10), and the scraper (10) is in contact with the inner wall of the stirring tank (2).

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