A kind of thermochromic heat insulation PVB film powder mixing device

Abstract

The utility model relates to PVB material processing technical field, concretely relates to a kind of crushing and mixing device of thermochromic heat insulation PVB film, including mixing bin and feed processing unit, feed processing unit includes disc type airflow crushing bin, exhaust port, classification turbine, first rotating shaft, stirring plate, sliding block, stirring hanging pole, feed assembly and airflow supply assembly, when using, material is placed into disc type airflow crushing bin, then cooperate with the high-pressure gas generated by airflow supply assembly to carry out crushing processing, after classification turbine coarse and fine material separation, into mixing bin, pass through stirring plate and stirring hanging pole and carry out sufficient mixing, then material is discharged from the bottom of mixing bin, pass through such mode to solve the problem that the land area is large, cost is high, pollution is serious and efficiency is low in crushing and mixing equipment separation in existing production process, realize that material completes superfine crushing and mixing in the same device, improve production efficiency, reduce cost, ensure product quality.

Description

Technical Field

[0001] This utility model relates to the field of PVB material processing technology, and in particular to a crushing and mixing device for thermochromic heat-insulating PVB film. Background Technology

[0002] PVB is a condensation compound of polyvinyl alcohol and butyraldehyde. Its main use both domestically and internationally is as an interlayer in laminated glass. Thermochromic PVB film is a new type of material made from traditional PVB through doping modification and co-extrusion. It can be combined with various types of glass to make color-changing, sun-shading, heat-insulating, and energy-saving safety glass. This technology can significantly reduce the energy consumption of windows and improve the comfort of buildings. In the production process of thermochromic heat-insulating PVB film, the mixing stage has a great impact on the quality of the final product.

[0003] Existing mixing solutions using common devices such as V-type mixers and double cone mixers can achieve macroscopic uniform mixing of materials and have strong equipment versatility, but they cannot achieve microscopic fine mixing. They require additional material pretreatment, which increases the complexity of the production process and may introduce new process variables. While using a three-dimensional mixer can meet the requirements of both microscopic and macroscopic uniformity and solve the problem of dispersing complex components, the mixing efficiency is extremely low, making it unsuitable for continuous industrial production and not feasible for batch application.

[0004] Therefore, there is an urgent need to provide a crushing and mixing device for thermochromic heat-insulating PVB film that integrates pretreatment and mixing, in order to solve the problems of large footprint, high cost, serious pollution and low efficiency caused by the separation of crushing and mixing equipment in the existing production process. Summary of the Invention

[0005] The purpose of this invention is to provide a crushing and mixing device for thermochromic heat-insulating PVB film, which aims to solve the problems of large footprint, high cost, serious pollution, and low processing efficiency in the existing technology.

[0006] To achieve the above objectives, this utility model provides a pulverizing and mixing device for thermochromic heat-insulating PVB film, comprising a mixing chamber and a feeding processing unit. The feeding processing unit includes a disc-type airflow pulverizing chamber, an exhaust port, a staged turbine, a first rotating shaft, a stirring plate, a slider, a stirring rod, a feeding assembly, and an airflow supply assembly. The feeding processing unit is connected to the mixing chamber. The disc-type airflow pulverizing chamber is disposed above the mixing chamber. The staged turbine is connected to both the disc-type airflow pulverizing chamber and the mixing chamber. The exhaust port communicates with the disc-type airflow pulverizing chamber. The feeding assembly is connected to the disc-type airflow pulverizing chamber. The first rotating shaft is rotatably connected to the mixing chamber and located on the inner sidewall of the mixing chamber. The slider is connected to the first rotating shaft and located on the outer sidewall of the first rotating shaft. The stirring plate is connected to the slider and located on one side of the slider. The stirring rod is connected to the first rotating shaft and located on the outer sidewall of the first rotating shaft.

[0007] The system includes a mixing chamber and a feeding processing unit. The feeding processing unit includes a disc-shaped airflow pulverizing chamber, an exhaust port, a staged turbine, a first rotating shaft, a stirring plate, a slider, a stirring rod, a feeding assembly, and an airflow supply assembly. The feeding processing unit is connected to the mixing chamber. The disc-shaped airflow pulverizing chamber is located above the mixing chamber. The staged turbine is connected to both the disc-shaped airflow pulverizing chamber and the mixing chamber. The exhaust port communicates with the disc-shaped airflow pulverizing chamber. The feeding assembly is connected to the disc-shaped airflow pulverizing chamber. The first rotating shaft is rotatably connected to the mixing chamber and is located on the inner wall of the mixing chamber. The slider is connected to the first rotating shaft and is located on the outer wall of the first rotating shaft. The stirring plate is connected to the slider and is located on one side of the slider. The stirring rod is connected to the first rotating shaft and is located on the outer wall of the first rotating shaft.

[0008] The grading turbine includes a grading chamber, a second rotating shaft, a grading wheel, a filter screen, and a feeding roller. The grading chamber is connected to both the crushing chamber and the mixing chamber. The second rotating shaft is rotatably connected to the grading chamber and is located on the inner wall of the grading chamber. The grading wheel is connected to the second rotating shaft and is located on the outer wall of the second rotating shaft. The filter screen is disposed on the outer wall of the grading wheel, and the feeding roller is disposed on the inner wall of the grading chamber.

[0009] The feeding assembly includes a venturi tube, a feeding hopper, and a feeding nozzle. The venturi tube is connected to the feeding port and is located at the end of the feeding port. The feeding hopper is connected to the venturi tube and is located above the venturi tube. The feeding nozzle is connected to the venturi tube and is located at one end of the venturi tube.

[0010] The airflow supply assembly includes an air compressor, a filter, a dryer, and an air intake pipe. The air compressor is located on the outer wall of the mixing silo. The filter is connected to the air compressor and is located at the output end of the air compressor. The dryer is connected to the filter and is located at the output end of the filter. The air intake pipe is connected to both the dryer and the air inlet.

[0011] This utility model discloses a pulverizing and mixing device for thermochromic heat-insulating PVB film. In use, the material is conveyed through the feeding assembly to the disc-type airflow pulverizing chamber, where it is pulverized by high-pressure gas generated by the airflow supply assembly. After being separated into coarse and fine particles by the classifying turbine, fine particles meeting the particle size requirements enter the mixing chamber, while coarse particles return to the disc-type airflow pulverizing chamber for further pulverization. The pulverized material then enters the mixing chamber, where a first rotating shaft is driven by a motor. The rotation of the stirring plate and the stirring rod thoroughly mixes the different materials entering the mixing chamber. The material is then discharged from the discharge pipe and valve at the bottom of the mixing chamber. This method solves the problems of large footprint, high cost, serious pollution, and low efficiency caused by the separation of pulverizing and mixing equipment in existing production processes. It achieves ultra-fine pulverization and mixing of materials within the same device, improving production efficiency, reducing costs, and ensuring product quality. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the crushing and mixing device for thermochromic heat-insulating PVB film of this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of the disc-type airflow pulverizing chamber of this utility model.

[0015] Figure 3 This is a schematic diagram of the structure of the staged turbine of this utility model.

[0016] 101-Mixing bin, 102-Exhaust port, 103-First rotating shaft, 104-Agitator plate, 105-Slider, 106-Agitator rod, 107-Grinding chamber, 108-Air inlet, 109-Feed inlet, 110-Grinding nozzle, 111-Grading bin, 112-Second rotating shaft, 113-Grading wheel, 114-Filter screen, 115-Feeding roller, 116-Venturi tube, 117-Feeding hopper, 118-Feeding nozzle, 119-Air compressor, 120-Filter, 121-Dryer, 122-Air inlet pipe. Detailed Implementation

[0017] Please see Figures 1 to 3 ,in, Figure 1 This is a schematic diagram of the crushing and mixing device for thermochromic heat-insulating PVB film of this utility model. Figure 2 This is a schematic diagram of the structure of the disc-type airflow pulverizing chamber of this utility model. Figure 3 This is a schematic diagram of the structure of the staged turbine of this utility model.

[0018] This utility model provides a crushing and mixing device for thermochromic heat-insulating PVB film, including a mixing chamber 101 and a feeding processing unit. The feeding processing unit includes a disc-type airflow crushing chamber, an exhaust port 102, a classifying turbine, a first rotating shaft 103, a stirring plate 104, a slider 105, a stirring rod 106, a feeding assembly, and an airflow supply assembly. The disc-type airflow crushing chamber includes a crushing chamber 107, an air inlet 108, a feeding inlet 109, and a crushing nozzle 110. The classifying turbine includes a classifying chamber 111, a second rotating shaft 112, a classifying wheel 113, a filter screen 114, and a feeding roller 115. The feeding assembly includes a venturi tube 116, a feeding hopper 117, and a feeding nozzle 118. The airflow supply assembly includes an air compressor 119, a filter 120, a dryer 121, and an air inlet pipe 122.

[0019] The feeding processing unit is connected to the mixing chamber 101; the disc-type airflow pulverizing chamber is disposed above the mixing chamber 101; the staged turbine is connected to both the disc-type airflow pulverizing chamber and the mixing chamber 101; the exhaust port 102 is connected to the disc-type airflow pulverizing chamber; the feeding assembly is connected to the disc-type airflow pulverizing chamber; the first rotating shaft 103 is rotatably connected to the mixing chamber 101 and is located on the inner side wall of the mixing chamber 101; the slider 105 is connected to the first rotating shaft 103 and is located on the outer side wall of the first rotating shaft 103; the stirring plate 104 is connected to the slider 105 and is located on one side of the slider 105; the stirring rod 106 is connected to the first rotating shaft 103 and is located on the outer side wall of the first rotating shaft 103.

[0020] In this embodiment, the material is fed into the disc-type airflow pulverizing chamber via the feeding component, and then pulverized by the high-pressure gas generated by the airflow supply component. After being separated into coarse and fine particles by the classifying turbine, the fine particles that meet the particle size requirements enter the mixing chamber 101, while the coarse particles return to the disc-type airflow pulverizing chamber for further pulverization. The pulverized material then enters the mixing chamber 101. The first rotating shaft 103 is driven to rotate by a motor, and the different materials entering the mixing chamber 101 are fully mixed by the rotation of the stirring plate 104 and the stirring rod 106. Afterward, the material is discharged from the discharge pipe and valve at the bottom of the mixing chamber 101. This method solves the problems of large footprint, high cost, serious pollution, and low efficiency caused by the separation of pulverizing and mixing equipment in existing production processes. It enables the material to be ultra-finely pulverized and mixed in the same device, improving production efficiency, reducing costs, and ensuring product quality.

[0021] The slider 105 can adjust the position of the mixing plate 104 according to the amount of material fed in, so that the material is mixed evenly.

[0022] The first rotating shaft 103 is a three-phase motor, which is installed outside the mixing hopper 101 and connected to the first rotating shaft through a transmission device. The transmission device includes a drive gear fixed on the motor output shaft and a driven gear fixed on the first rotating shaft 103. When the motor is running, it drives the first rotating shaft 103 to rotate through the transmission device to stir the material.

[0023] Furthermore, the pulverizing chamber 107 is connected to the classifying turbine and is located above the classifying turbine; the air inlet 108 is connected to the pulverizing chamber 107 and is located on the outer wall of the pulverizing chamber 107; the feed inlet 109 is connected to the pulverizing chamber 107 and is located on the outer wall of the pulverizing chamber 107; and the pulverizing nozzle 110 is connected to the air inlet 108 and is located at one end of the air inlet 108.

[0024] In this embodiment, the high-pressure gas generated by the air supply component enters from the air inlet 108 and is injected into the crushing chamber 107 at high speed through the crushing nozzle 110. At the intersection of multiple high-pressure airflows, the material is repeatedly collided, rubbed, and sheared to crush it. The inner wall is made of wear-resistant material to reduce the wear of the material on the chamber wall and at the same time ensure the stability and reliability of the crushing process.

[0025] Furthermore, the grading chamber 111 is connected to the crushing chamber 107 and the mixing chamber 101 respectively. The second rotating shaft 112 is rotatably connected to the grading chamber 111 and is located on the inner side wall of the grading chamber 111. The grading wheel 113 is connected to the second rotating shaft 112 and is located on the outer side wall of the second rotating shaft 112. The filter screen 114 is disposed on the outer side wall of the grading wheel 113. The feeding roller 115 is disposed on the inner side wall of the grading chamber 111.

[0026] The second rotating shaft 112 is driven by a stirring motor and is installed outside the grading chamber 111. The connection method is the same as that of the first stirring shaft 103.

[0027] In this embodiment, the second rotating shaft 112 drives the classifying wheel 113 to rotate at high speed. Under the strong centrifugal force generated by the classifying wheel 113, coarse and fine materials are separated. Fine particles that meet the particle size requirements enter the mixing chamber 101, while coarse particles return to the crushing chamber 107 for further crushing.

[0028] Furthermore, the venturi tube 116 is connected to the feed inlet 109 and is located at the end of the feed inlet 109; the feed hopper 117 is connected to the venturi tube 116 and is located above the venturi tube 116; and the feeding nozzle 118 is connected to the venturi tube 116 and is located at one end of the venturi tube 116.

[0029] In this embodiment, the Venturi tube 116 is used to connect to the feed inlet 109, the feed hopper 117 is used to add materials, and the feeding nozzle 118 can cooperate with the Venturi tube 116 to generate a Venturi effect to accelerate the material into the crushing chamber 107.

[0030] Furthermore, the air compressor 119 is disposed on the outer wall of the mixing chamber 101, the filter 120 is connected to the air compressor 119 and is located at the output end of the air compressor 119, the dryer 121 is connected to the filter 120 and is located at the output end of the filter 120, and the air inlet pipe 122 is connected to the dryer 121 and the air inlet 108 respectively.

[0031] In this embodiment, after the air is pressurized by the air compressor 119, impurities are removed by the filter 120, and then dried by the dryer 121. Finally, the air is delivered to the air inlet 108 through the air inlet pipe 122 to provide power for the operation of the pulverizing nozzle 110.

[0032] The beneficial effects of this device: 1. Integrated design Integrating the ultrafine grinding and mixing functions of air jet mill into one device reduces the equipment's footprint and investment costs, avoids material transfer between different devices, and reduces dust pollution and material loss.

[0033] 2. Improve production efficiency The materials are continuously crushed and mixed in the same device, eliminating the need for additional transfer and waiting time, which greatly shortens the production cycle and improves production efficiency.

[0034] 3. Ensure product quality By using a grading system to ensure that the particle size of the material entering the mixing chamber meets the requirements, and then through thorough mixing, the uniformity of particle size and mixing of the product can be guaranteed, thereby improving product quality.

[0035] 4. Easy to operate This device is highly automated. By controlling parameters such as feeding, airflow, grading, and discharging, it can achieve precise control of the entire production process. It is easy to operate and reduces labor intensity.

[0036] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments, and equivalent variations made in accordance with the claims of this application, still fall within the scope of this application.

Claims

1. A crushing and mixing device for thermochromic heat-insulating PVB film, characterized in that, It includes a mixing bin and a feeding and processing unit, wherein the feeding and processing unit is connected to the mixing bin; The feeding and processing unit includes a disc-shaped airflow pulverizing chamber, an exhaust port, a staged turbine, a first rotating shaft, a stirring plate, a slider, a stirring rod, a feeding assembly, and an airflow supply assembly. The disc-shaped airflow pulverizing chamber is located above the mixing chamber. The staged turbine is connected to both the disc-shaped airflow pulverizing chamber and the mixing chamber. The exhaust port communicates with the disc-shaped airflow pulverizing chamber. The feeding assembly is connected to the disc-shaped airflow pulverizing chamber. The first rotating shaft is rotatably connected to the mixing chamber and is located on the inner wall of the mixing chamber. The slider is connected to the first rotating shaft and is located on the outer wall of the first rotating shaft. The stirring plate is connected to the slider and is located on one side of the slider. The stirring rod is connected to the first rotating shaft and is located on the outer wall of the first rotating shaft.

2. The pulverizing and mixing device for thermochromic heat-insulating PVB film as described in claim 1, characterized in that, The disc-shaped airflow pulverizing chamber includes a pulverizing chamber, an air inlet, a feed inlet, and a pulverizing nozzle. The pulverizing chamber is connected to the classifying turbine and is located above the classifying turbine. The air inlet is connected to the pulverizing chamber and is located on the outer wall of the pulverizing chamber. The feed inlet is connected to the pulverizing chamber and is located on the outer wall of the pulverizing chamber. The pulverizing nozzle is connected to the air inlet and is located at one end of the air inlet.

3. The pulverizing and mixing device for thermochromic heat-insulating PVB film as described in claim 2, characterized in that, The grading turbine includes a grading chamber, a second rotating shaft, a grading wheel, a filter screen, and a feeding roller. The grading chamber is connected to both the crushing chamber and the mixing chamber. The second rotating shaft is rotatably connected to the grading chamber and is located on the inner wall of the grading chamber. The grading wheel is connected to the second rotating shaft and is located on the outer wall of the second rotating shaft. The filter screen is disposed on the outer wall of the grading wheel, and the feeding roller is disposed on the inner wall of the grading chamber.

4. The pulverizing and mixing device for thermochromic heat-insulating PVB film as described in claim 3, characterized in that, The feeding assembly includes a venturi tube, a feeding hopper, and a feeding nozzle. The venturi tube is connected to the feeding port and is located at the end of the feeding port. The feeding hopper is connected to the venturi tube and is located above the venturi tube. The feeding nozzle is connected to the venturi tube and is located at one end of the venturi tube.

5. The pulverizing and mixing device for thermochromic heat-insulating PVB film as described in claim 4, characterized in that, The airflow supply assembly includes an air compressor, a filter, a dryer, and an air inlet pipe. The air compressor is located on the outer wall of the mixing chamber. The filter is connected to the air compressor and is located at the output end of the air compressor. The dryer is connected to the filter and is located at the output end of the filter. The air inlet pipe is connected to both the dryer and the air inlet.

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