Glaze mixing device

Abstract

This utility model relates to the field of glaze mixing technology and discloses a glaze mixing device, including a mixing tank. A motor-driven mixing paddle is installed inside the mixing tank. The rotating shaft of the mixing paddle passes through the center of a filter screen located on the upper side of the mixing tank. A material-pulling rod is coaxially mounted on the rotating shaft located above the filter screen. A slag discharge port is provided on one side of the mixing tank, and a slag discharge pipe is provided at the slag discharge port. This utility model can simultaneously and efficiently remove large particulate impurities during the mixing process, simplifying the production process and improving the mixing quality and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of glaze mixing technology, and in particular to a glaze mixing device. Background Technology

[0002] In the production of ceramic products, the quality of the glaze directly determines the product's appearance, texture, surface properties, and durability. Therefore, the glaze preparation process has always been a core focus in the ceramic industry. Among these aspects, the uniformity of glaze mixing is fundamental to ensuring the smooth progress of subsequent glazing and firing processes. Uneven mixing or the presence of impurities can easily lead to defects in the finished product, such as pinholes, glaze shrinkage, and uneven coloring, severely impacting product quality and market competitiveness.

[0003] In existing technologies, glaze mixing typically relies on traditional stirring equipment, whose main function is to mechanically mix various raw materials to achieve uniform composition. However, during the mining, transportation, storage, and early processing of glaze raw materials, large particulate impurities inevitably become mixed in, such as incompletely crushed quartz sand, feldspar particles, or externally introduced metal fragments and gravel. If these large particulate impurities directly enter the mixing stage without effective treatment, they will not only disrupt the uniformity of the glaze, leading to localized accumulation or uneven flow during glazing, but may also cause blockages at the nozzles of the glazing equipment, affecting production continuity. More seriously, after high-temperature firing, glaze containing large particulate impurities will form bumps, spots, or pinholes on the ceramic surface, significantly reducing the product qualification rate and increasing production costs.

[0004] To address these issues, some manufacturers add a separate screening process before mixing, using equipment such as vibrating screens and filters to pre-treat the raw materials. However, this approach has significant drawbacks: firstly, the additional screening equipment requires more production space, increasing equipment investment and energy consumption; secondly, separating the screening and mixing processes prolongs the production process, reduces overall efficiency, and may introduce impurities again during material transfer, affecting the impurity removal effect.

[0005] Therefore, there is an urgent need for a glaze mixing device that can simultaneously and efficiently remove large particulate impurities during the mixing process, simplify the production process, and improve the quality and efficiency of mixing. Utility Model Content

[0006] The purpose of this invention is to provide a glaze mixing device that can simultaneously and efficiently remove large particulate impurities during the mixing process, simplifying the production process and improving the quality and efficiency of mixing.

[0007] The present invention adopts the following technical solution:

[0008] A glaze mixing device includes a mixing tank, a motor-driven mixing paddle is installed inside the mixing tank, the rotating shaft of the mixing paddle passes through the middle of a filter screen located on the upper side inside the mixing tank, a material feeding rod is coaxially installed on the rotating shaft located on the upper part of the filter screen, a slag discharge port is provided on the mixing tank on one side of the filter screen, and a slag discharge pipe is provided at the slag discharge port.

[0009] Preferably, the filter screen is conical, and its bottom is coaxially provided with an installation ring connected to the inner wall of the mixing tank; the feed lever includes an inclined section parallel to the outer wall of the filter screen and a horizontal section parallel to the axis of the installation ring.

[0010] Preferably, the mounting ring has an annular mesh structure on the side closest to the filter screen.

[0011] Preferably, the feeding rod is provided with brush bristles.

[0012] Preferably, the bottom of the mounting ring is provided with a guide ring that communicates with an external water source, and the bottom of the guide ring is provided with an atomizing nozzle.

[0013] Preferably, the guide ring is located at the bottom of the mounting ring where no mesh structure is provided.

[0014] Preferably, a brush plate is provided on the rotating shaft at the lower part of the filter screen, and the brush plate is in contact with the inner wall of the mixing tank.

[0015] Preferably, the slag discharge pipe is arranged vertically.

[0016] Preferably, the mixing tank is detachably provided with a sealing cover on the top, and the motor is located on the top of the sealing cover; the sealing cover is provided with a feeding port.

[0017] Preferably, a guide pipe is provided at the feed port, and the guide pipe extends to the upper part of the filter screen.

[0018] Compared with existing technologies, the advantages of this invention are as follows: By installing a filter screen on the upper side inside the mixing tank, the material can be directly screened during the glaze mixing process. Large particles of impurities are trapped on the upper part of the filter screen, effectively preventing impurities from entering subsequent mixing stages. Simultaneously, a material-pushing rod coaxially mounted on the rotating shaft rotates synchronously with the mixing paddle, continuously agitating the material on the filter screen. This prevents material accumulation and filter screen blockage, while ensuring that impurities move smoothly to the slag discharge port and are ultimately discharged through the slag discharge pipe. This design reduces the impurity content in the glaze from the source, significantly reducing glaze defects caused by impurities and greatly improving the product qualification rate in subsequent glazing and firing processes.

[0019] By integrating the screening process and the mixing process into the same device, this device eliminates the independent screening process and the material transfer link in the traditional process. It not only reduces the equipment investment and the occupation of production space, but also shortens the overall production cycle. In addition, the anti-blocking function of the feeding rod reduces the frequency of equipment shutdown for cleaning, ensures the continuity of production, and further improves the efficiency of glaze preparation. Brief Description of the Drawings

[0020] Figure 1 It is the front view of the embodiment of this application;

[0021] Figure 2 It is the partial cross-sectional view of the implementation of this application;

[0022] Figure 3 It is the structural schematic diagram of the filter net of the embodiment of this application. Detailed Description of the Preferred Embodiment

[0023] The following will clearly and completely describe the present utility model in conjunction with the drawings and embodiments:

[0024] As Figures 1 to 3 shown, a glaze mixing device described in the present utility model includes a mixing tank 1. The mixing tank 1 is integrally in an inverted conical structure. A feeding port is provided at the top of the mixing tank 1, a discharging port is provided at the bottom, and a discharging valve is provided at the discharging port. A mixing paddle 2 driven by a motor 13 is provided inside the mixing tank 1. A filter net 3 is provided on the upper side inside the mixing tank 1. The rotating shaft of the mixing paddle 2 passes through the middle of the filter net 3 movably and is rotatably connected to the filter net 3 through a bearing. A feeding rod 4 is coaxially provided on the rotating shaft above the filter net 3. A slag discharging port 5 is provided on the mixing tank 1 on one side of the filter net 3, and a slag discharging pipe 6 is provided at the slag discharging port 5. The slag discharging pipe 6 is preferably vertically arranged and a valve is provided at the bottom for convenient discharging. During operation, the glaze to be mixed is added through the feeding port and falls onto the filter net 3. As the mixing paddle 2 rotates during operation, the rotating shaft will drive the feeding rod 4 to cause disturbance to the glaze on the filter net 3, which is beneficial to the rapid filtration and screening of the glaze and also helps to push the screened large-particle materials to the slag discharging port 5 for discharging from the slag discharging port 5. This device reduces the impurity content in the glaze from the source, significantly reduces the glaze surface defects caused by impurities, and greatly improves the product qualification rate of the subsequent glazing and firing processes.

[0025] Furthermore, the filter screen 3 is conical, with a mounting ring 7 coaxially mounted at its bottom, connecting to the inner wall of the mixing tank 1. The material-pushing rod 4 includes an inclined section parallel to the outer wall of the filter screen 3 and a horizontal section parallel to the axis of the mounting ring 7. Compared to the planar filter screen 3, the conical design of the filter screen 3 significantly increases the filtration area, allowing more glaze to be filtered in the same amount of time, thus improving filtration efficiency and enabling faster glaze screening. Simultaneously, the inclined surface of the cone provides a natural sliding tendency for large particles, causing them to move towards the bottom of the cone under their own gravity, facilitating their smooth accumulation at the slag discharge port 5 for subsequent discharge. The mounting ring 7 at the bottom stably fixes the conical filter screen 3 within the mixing tank 1, ensuring that the filter screen 3 does not shake or shift during mixing and material-pushing, thus ensuring stable filtration. The mounting ring 7 also catches falling large particles, allowing the material-pushing rod 4 to push them to the slag discharge port 5.

[0026] Furthermore, the mounting ring 7 has an annular mesh structure on the side near the filter screen 3. When the glaze moves towards the bottom of the filter under the action of the feeding rod 4, some small, incompletely filtered glaze particles may accumulate near the mounting ring 7 along with larger impurities. The annular mesh structure can perform secondary screening of this material, allowing the qualified small glaze particles to fall through the mesh structure to the bottom of the mixing tank 1 to continue participating in the mixing process. At the same time, due to the blocking effect of the mesh structure, large impurities will still be intercepted above the mounting ring 7 and eventually discharged through the slag discharge pipe 6. This design effectively reduces the situation where small glaze particles are discharged along with impurities due to the pushing of the feeding rod 4, avoiding waste of raw materials and improving the utilization rate of glaze. Preferably, the feeding rod 4 is provided with bristles, which are in contact with the filter screen 3 and the mounting ring 7 in the initial state.

[0027] Furthermore, a guide ring 8 connected to an external water source is provided at the bottom of the mounting ring 7. An atomizing nozzle 9 is located at the bottom of the guide ring 8. The guide ring 8 is positioned at the bottom of the mounting ring 7 without a mesh structure to avoid affecting the glaze's descent. A water pipe connected to the guide ring 8 and a water source is provided outside the mixing tank 1. The guide ring 8 and atomizing nozzles 9 are designed so that when water needs to be added to the glaze during production to adjust its concentration or promote mixing, the external water source is supplied to the guide ring 8 through the water pipe. The guide ring 8 can evenly distribute the water flow to each atomizing nozzle 9. The atomizing nozzles 9 can transform the water flow into fine mist droplets, which are evenly sprayed onto the glaze after it has been screened by the filter screen 3. Compared to the traditional direct water injection method, this atomizing spraying method avoids concentrated water flow impacting a certain area, thus effectively preventing the glaze from clumping due to excessive local moisture. Clumped glaze not only makes it difficult to mix thoroughly with other raw materials, but also affects the smooth progress of subsequent glazing processes. The evenly sprayed mist of water allows for finer contact and penetration between water and glaze particles, ensuring uniform mixing of the glaze under the stirring action of the mixing paddle 2, further improving the mixing quality of the glaze. Furthermore, the guide ring 8 ensures the stability of water supply to each nozzle, avoiding uneven spraying caused by water flow fluctuations, and providing a reliable guarantee for the stability of the glaze mixing process.

[0028] Furthermore, a brush plate 10 is installed on the rotating shaft at the lower part of the filter screen 3, and the brush plate 10 contacts the inner wall of the mixing tank 1. The brush plate 10, when rotating synchronously with the shaft, maintains close contact with the inner wall of the mixing tank 1, continuously cleaning the tank wall. During the glaze mixing process, some glaze easily adheres to the tank wall due to viscosity or centrifugal force. If not cleaned in time, this residual glaze will gradually dry and harden, not only wasting raw materials but also potentially detaching and mixing into new glaze during subsequent production, causing secondary pollution and affecting the purity of the glaze. The rotating cleaning action of the brush plate 10 can remove the adhering glaze from the tank wall in real time, allowing these materials to participate in the mixing process again, thus improving raw material utilization and preventing residual impurities from contaminating the new glaze.

[0029] Furthermore, hardened glaze adhering to the tank wall over a long period can reduce the effective utilization of the internal space. The cleaning action of the brush plate 10 can maintain the cleanliness of the tank wall and ensure the stable operation efficiency of the device. At the same time, compared with manual cleaning, this brush plate 10, which runs automatically with the rotating shaft, does not require additional downtime for cleaning, does not affect the continuity of production, and reduces manual maintenance costs.

[0030] Further, in this embodiment, a sealing cover 11 is detachably provided at the top of the mixing tank 1. The sealing cover 11 is preferably connected to the mixing tank 1 by bolts. The motor 13 is arranged at the top end of the sealing cover 11. Such an arrangement facilitates the maintenance and repair of the interior of the mixing tank 1. A feeding port is provided on the sealing cover 11. A diversion pipe 12 is provided at the feeding port, and the diversion pipe 12 extends above the filter screen 3. Directing the material above the filter screen 3 helps to extend the filtering path and ensure the effect of filtering and screening.

[0031] When the utility model is in use, by arranging the filter screen 3 on the upper side inside the mixing tank 1, the material can be directly screened during the glaze mixing process. Large-particle impurities are intercepted above the filter screen 3, effectively preventing impurities from entering the subsequent mixing process. At the same time, the material shifting rods 4 coaxially arranged on the rotating shaft rotate synchronously with the mixing paddle 2, and can continuously shift the material on the filter screen 3, which not only prevents the material from accumulating and blocking the filter screen, but also ensures that the impurities smoothly move towards the slag discharge port 5 and are finally discharged through the slag discharge pipe 6. The impurity content in the glaze is reduced from the source, the glaze surface defects caused by impurities are significantly reduced, and the product qualification rate of the subsequent glazing and firing processes is greatly improved.

[0032] This device integrates the screening process and the mixing process in the same equipment, eliminating the independent screening process and the material transfer link in the traditional process. It not only reduces the equipment investment and the occupation of production space, but also shortens the overall production cycle. In addition, the anti-blocking function of the material shifting rods 4 reduces the frequency of equipment shutdown for cleaning, ensures the continuity of production, and further improves the efficiency of glaze preparation. The device has a simple structure, stable operation, and convenient maintenance, and can adapt to the processing requirements of different glazes, providing reliable equipment support for large-scale production.

Claims

1. A glaze mixing device, characterized in that: The device includes a mixing tank, inside which is installed a motor-driven mixing paddle. The rotating shaft of the mixing paddle passes through the center of a filter screen located on the upper side of the mixing tank. A material-pulling rod is coaxially installed on the rotating shaft located on the upper part of the filter screen. A slag discharge port is provided on the mixing tank on one side of the filter screen, and a slag discharge pipe is provided at the slag discharge port.

2. The glaze mixing device according to claim 1, characterized in that: The filter screen is conical, and its bottom is coaxially provided with an installation ring that connects to the inner wall of the mixing tank; the feed lever includes an inclined section parallel to the outer wall of the filter screen and a horizontal section parallel to the axis of the installation ring.

3. The glaze mixing device according to claim 2, characterized in that: The mounting ring has a ring-shaped mesh structure on the side near the filter screen.

4. The glaze mixing device according to claim 3, characterized in that: The feed bar is equipped with bristles.

5. The glaze mixing device according to claim 2, characterized in that: The mounting ring has a flow guide ring at its bottom that communicates with an external water source, and an atomizing nozzle is provided at the bottom of the flow guide ring.

6. The glaze mixing device according to claim 5, characterized in that: The flow guide ring is located at the bottom of the mounting ring where no mesh structure is provided.

7. The glaze mixing device according to claim 1, characterized in that: A brush plate is provided on the rotating shaft at the lower part of the filter screen, and the brush plate is in contact with the inner wall of the mixing tank.

8. The glaze mixing device according to claim 1, characterized in that: The slag discharge pipe is arranged vertically.

9. The glaze mixing device according to claim 2, characterized in that: The mixing tank is detachably equipped with a sealing cover on the top, and the motor is located on the top of the sealing cover; the sealing cover is provided with a feeding port.

10. The glaze mixing device according to claim 9, characterized in that: A guide pipe is provided at the feed port, and the guide pipe extends to the upper part of the filter screen.

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