A heat dissipation device of vitrified microsphere
By combining the main screw conveyor with air cooling, material cooling and water cooling sections, the problem of cooling down after high-temperature discharge of vitrified microspheres was solved, achieving stable cooling and heat utilization, improving energy utilization and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI JINSTON BUILDING MATERIALS CO LTD
- Filing Date
- 2025-07-05
- Publication Date
- 2026-06-26
AI Technical Summary
Vitrified microspheres need to be cooled down quickly after being discharged from high temperature, but natural cooling is inefficient, air cooling easily raises dust, and water cooling is prone to breakage. Existing technologies are difficult to effectively cool down and waste heat.
The system employs a main screw conveyor, combined with air-cooled, material-cooled, and water-cooled sections. It gradually cools the material through three methods: airflow, solid raw materials, and water cooling. The system utilizes a screw conveyor and rotating impeller to assist in heat transfer, and a filter screen is installed to prevent dust pollution, thereby achieving gradual cooling and utilizing the heat.
Stable cooling of vitrified microspheres was achieved, dust pollution was avoided, energy utilization was improved, additional preheating steps were saved, and production costs were reduced.
Smart Images
Figure CN224415765U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vitrified microsphere preparation technology, and in particular to a heat dissipation device for vitrified microspheres. Background Technology
[0002] Vitrified microspheres are an inorganic glassy mineral material. Due to the vitrification of their surface, they possess a certain particle strength, exhibiting highly stable physical and chemical properties, strong aging and weather resistance, and excellent thermal insulation, fireproofing, and sound absorption properties. They are suitable for use as lightweight filler aggregates and thermal insulation, fireproofing, sound absorption, and heat preservation materials in many fields. In the building materials industry, using vitrified microspheres as lightweight aggregates can improve the flowability and self-strength of mortar, reduce material shrinkage, enhance overall product performance, and lower overall production costs.
[0003] The production of vitrified microspheres involves high-temperature processing, requiring preheating of the raw materials followed by treatment at different temperature ranges before final discharge. Because the final processing stage involves very high temperatures, such as 800℃~1000℃, the discharge temperature is also very high. Therefore, the vitrified microspheres need to be cooled before being packaged as finished products. To avoid impacting production schedules, rapid cooling is naturally desirable. However, if air cooling is used, the microspheres, being small particles, are easily stirred up by even slightly increased airflow. Water cooling, while offering a large temperature difference and rapid cooling, can also cause the microspheres to break due to the rapid cooling rate. Therefore, in practice, the heat dissipation of vitrified microspheres currently relies primarily on natural cooling, supplemented by relatively gentle air convection.
[0004] This invention aims to provide a heat dissipation device for vitrified microspheres, which not only aims to successfully cool the vitrified microspheres, but also to utilize the heat released by the vitrified microspheres to improve energy utilization efficiency. Utility Model Content
[0005] This invention provides a heat dissipation device for vitrified microspheres, which not only aims to successfully cool the vitrified microspheres, but also attempts to utilize the heat released by the vitrified microspheres to improve energy utilization efficiency.
[0006] This utility model provides a heat dissipation device for vitrified microspheres, comprising: a main screw conveyor, the main screw conveyor including a cylinder body and a spiral auger that can rotate inside the cylinder body, with an inlet and an outlet provided at both ends of the cylinder body, the vitrified microspheres being fed through the inlet and discharged through the outlet; wherein, in the direction from the inlet to the outlet, an air-cooling section, a material-cooling section, and a water-cooling section are provided on the cylinder body; the air-cooling section cools the vitrified microspheres by exchanging heat with airflow; the material-cooling section cools the vitrified microspheres by exchanging heat with solid raw materials; and the water-cooling section cools the vitrified microspheres by exchanging heat with water.
[0007] In the air-cooling section, multiple vent holes are provided on the cylinder body; a filter screen is provided on the vent holes, which allows air to pass through but does not allow dust and solid particles to pass through; some vent holes are used to connect to the air-filling device to introduce heat exchange airflow, and other vent holes are used for air outflow.
[0008] In the material cooling section, a material cooling section trough is provided at the bottom of the cylinder body, and the material cooling section trough surrounds the cylinder body. A first spiral conveying module is provided on one side of the material cooling section trough for introducing solid raw materials, and a second spiral conveying module is provided on the other side of the material cooling section trough for extracting solid raw materials. Both the first spiral conveying module and the second spiral conveying module are spiral conveyors and both include a spiral auger. The spiral auger of the second spiral conveying module is surrounded by a cylinder shell.
[0009] Furthermore, multiple first spiral conveying modules are provided on one side of the material cooling section trough, and multiple second spiral conveying modules are provided on the other side of the material cooling section trough.
[0010] Furthermore, one or more rotating paddle wheels are provided at the bottom of the material cooling section trough. The rotating paddle wheels are used to assist in the transfer of solid raw materials. The rotating paddle wheels extend along the length of the cylinder body, and the power device for driving the rotating paddle wheels is located outside the material cooling section trough.
[0011] Furthermore, in the water-cooling section, a water-cooling section trough is provided at the bottom of the cylinder body. The water-cooling section trough surrounds the outside of the cylinder body, with an opening at the top and a water outlet at the bottom.
[0012] The heat dissipation device for vitrified microspheres provided by this utility model can easily adjust the discharge speed and heat exchange time by setting a main screw conveyor. By setting an air cooling section, a material cooling section and a water cooling section, it can achieve gradual cooling and ensure the quality of vitrified microspheres. It not only successfully cools down the vitrified microspheres, but also utilizes the heat released by the vitrified microspheres, thereby improving energy utilization efficiency. Attached Figure Description
[0013] Figure 1 The diagram shown is a schematic of the heat dissipation device of the vitrified microspheres according to an embodiment of the present invention.
[0014] Figure 2 The diagram shown is a structural schematic of the screw conveyor in an embodiment of this utility model.
[0015] Figure 3 The diagram shown is a structural schematic of the material cooling section in an embodiment of this utility model.
[0016] Figure 4 The diagram shown is a structural schematic of the material cooling section in another embodiment of this utility model.
[0017] Figure 5 The diagram shown is a structural schematic of the water-cooling section in an embodiment of this utility model.
[0018] Figure label:
[0019] 100: Heat dissipation device for vitrified microspheres; 1: Main screw conveyor; 11: Feed inlet; 12: Discharge outlet;
[0020] 13: Cylinder body; 131: Air-cooled section; 1311: Vent hole; 132: Material cooling section; 133: Water-cooled section;
[0021] 1321: First spiral conveyor module; 1322: Second spiral conveyor module; 13221: Cylinder shell; 13222: Discharge port; 1323: Material cooling section trough; 1324: Rotating impeller; 1331: Water cooling section water tank; 1332: Water outlet; 14: Spiral auger. Detailed Implementation
[0022] To provide a better understanding of the purpose, structure, features, and functions of this utility model, detailed descriptions are provided below with reference to specific embodiments.
[0023] Figure 1 The diagram shown is a schematic of the heat dissipation device of the vitrified microspheres according to an embodiment of the present invention. Figure 2 The diagram shown is a structural schematic of the screw conveyor in an embodiment of this utility model. Figure 3 The diagram shown is a structural schematic of the material cooling section in an embodiment of this utility model. Figure 4 The diagram shown is a structural schematic of the material cooling section in another embodiment of this utility model. Figure 5 The diagram shown is a structural schematic of the water-cooling section in an embodiment of this utility model.
[0024] like Figure 1 As shown, this embodiment of the invention provides a heat dissipation device 100 for vitrified microspheres, comprising: a main screw conveyor 1, which includes a cylindrical body 13 and a spiral auger 14 that can rotate inside the cylindrical body 13. An inlet 11 and an outlet 12 are provided at both ends of the cylindrical body 13. The vitrified microspheres are fed through the inlet 11 and discharged through the outlet 12. By adjusting the spiral auger, the flow rate, travel speed, and heat exchange time of the vitrified microspheres can be adjusted. Furthermore, since the vitrified microspheres are located inside the cylindrical body 13, they will not be blown away by the wind, thus preventing the formation of solid particles or dust pollution.
[0025] Among them, such as Figure 1As shown, following the direction from the feed inlet 11 to the discharge outlet 12, the cylinder body 13 is sequentially equipped with an air-cooling section 131, a material-cooling section 132, and a water-cooling section 133. The air-cooling section 131 cools the vitrified microspheres by exchanging heat with the airflow; the material-cooling section 132 cools the vitrified microspheres by exchanging heat with the solid raw material; and the water-cooling section 133 cools the vitrified microspheres by exchanging heat with water. The air-cooling section 131 is set up first not only to cool the vitrified microspheres but also to reduce the chance of the microspheres sticking together, because the morphology of the vitrified microspheres may not be very stable at this stage. If air is not introduced in time to cool the microspheres, some microspheres may stick together.
[0026] like Figure 1 and Figure 2 As shown, in the air-cooled section 131, multiple vents 1311 are provided on the cylinder body 13. The vents 1311 can provide natural ventilation or forced convection. For example, some vents 1311 can be connected to an air-filling device to introduce heat exchange airflow, while other vents are used for forced convection ventilation. To avoid dust pollution, filters are installed on the vents 1311. The filters allow air to pass through but do not allow dust or solid particles to pass through, thus ensuring ventilation while preventing dust pollution. During convection ventilation heat exchange, the spiral motion of the auger 14 not only propels the vitrified microspheres forward but also agitates them, achieving full contact between the vitrified microspheres and the convective air for sufficient heat exchange; simultaneously, the agitation of the vitrified microspheres also reduces their adhesion.
[0027] like Figure 3 As shown, in the material cooling section 132, a material cooling section trough 1323 is provided at the bottom of the cylinder body 13, surrounding the cylinder body 13. A first screw conveyor module 1321 is provided on one side of the material cooling section trough 1323 for introducing solid raw materials, and a second screw conveyor module 1322 is provided on the other side of the material cooling section trough 1323 for discharging solid raw materials. Both the first screw conveyor module 1321 and the second screw conveyor module 1322 are screw conveyors and both include a screw auger. The screw auger of the second screw conveyor module 1322 is surrounded by a cylinder shell 13221.
[0028] In the process of preparing vitrified microspheres, the solid raw materials need to be preheated. The main purpose of preheating is to avoid the raw material particles from easily breaking due to excessively rapid or drastic heating. Therefore, the solid raw materials are preheated. In the material cooling section 132, the solid raw materials are introduced through the first spiral conveying module 1321 and come into contact with the cylinder body 13 to exchange heat with the vitrified microspheres. After heat exchange, the solid raw materials are output through the second spiral conveying module 1322.
[0029] Since the vitrified microspheres are mainly distributed at the bottom of the cylinder 13 in the main screw conveyor 1, heat exchange between the solid raw material and the vitrified microspheres is achieved by setting the material cooling section trough 1323 at the bottom of the cylinder 13. Both the first screw conveyor module 1321 and the second screw conveyor module 1322 are screw conveyors, both including a spiral auger. However, for easier feeding, the spiral auger of the first screw conveyor module 1321 is not surrounded by a cylinder shell, thus expanding the feeding space for easier feeding. For easier discharging, the spiral auger of the second screw conveyor module 1322 is surrounded by a cylinder shell 13221. This serves two purposes: firstly, to confine the solid raw material within the cylinder shell to prevent dust dispersion; and secondly, to facilitate the concentrated discharge of the solid raw material from the discharge port 13222. The discharged solid raw material absorbs heat from the vitrified microspheres and can undergo the next high-temperature treatment, thus eliminating the need for an additional preheating step for the solid raw material, saving energy, and improving energy utilization.
[0030] Furthermore, multiple first spiral conveying modules 1321 can be arranged on one side of the material cooling section trough 1323, and multiple second spiral conveying modules 1322 can be arranged on the other side of the material cooling section trough 1323. This allows solid raw materials to be introduced and extracted from multiple locations, fully utilizing the heat released by the vitrified microspheres. Since the material cooling section trough 1323 has a certain length, multiple first spiral conveying modules 1321 and multiple second spiral conveying modules 1322 can be arranged on both sides of the material cooling section trough 1323 respectively. Figure 3 The diagram shown is a structural schematic at a certain cross-section. Setting multiple first spiral conveyor modules 1321 and multiple second spiral conveyor modules 1322 means that multiple cross-sections of the material cooling section trough 1323 are provided with... Figure 3 The structure shown.
[0031] Furthermore, such as Figure 4 As shown, one or more rotating paddle wheels 1324 are provided at the bottom of the material cooling section trough 1323. The rotating paddle wheels 1324 are used to assist in the transfer of solid raw materials. For example, the rotating paddle wheels 1324 are driven by a power device (e.g., an electric motor) to agitate the solid raw materials, thereby assisting in the transfer of solid raw materials, similar to the case of a star feeder. Figure 4 The diagram shows a cross-section of the material cooling section trough 1323. In practice, the rotating impeller 1324 can extend along the length of the cylinder 13. For example, when multiple first screw conveyor modules 1321 and multiple second screw conveyor modules 1322 are provided, only one rotating impeller 1324 needs to be provided, because the rotating impeller 1324 can extend along the length of the cylinder 13, thus allowing solid raw materials from multiple cross-sections to be agitated using only one rotating impeller 1324. The power unit (e.g., an electric motor) for driving the rotating impeller can be located outside the material cooling section trough 1323.
[0032] Furthermore, such as Figure 5 As shown, in the water-cooling section 133, a water-cooling tank 1331 is provided at the bottom of the cylinder 13, surrounding the outside of the cylinder 13. The upper part of the water-cooling tank 1331 is open, and the lower part of the water-cooling tank 1331 is provided with a water outlet 1332. In the water-cooling section 133, the vitrified microspheres can exchange heat with the water in the water-cooling tank 1331 through the cylinder 13. Hot water can be introduced from the upper part of the water-cooling tank 1331 and drawn out from the water outlet 1332. Because water has a high specific heat, the water flow rate does not need to be particularly fast. The reason why the water-cooling section is placed last is that the temperature of the vitrified microspheres is relatively high. If they were directly water-cooled, some of the water might boil into steam, increasing the difficulty of management and operation. After heat exchange in the air-cooling section and the material-cooling section, the temperature of the vitrified microspheres has already decreased. At this point, water cooling can not only effectively cool the vitrified microspheres, but also make the management of the water exchange water relatively easy.
[0033] The heat dissipation device for vitrified microspheres provided by this utility model can easily adjust the discharge speed and heat exchange time by setting a main screw conveyor. By setting an air cooling section, a material cooling section and a water cooling section, it can achieve gradual cooling and ensure the quality of vitrified microspheres. It not only successfully cools down the vitrified microspheres, but also utilizes the heat released by the vitrified microspheres, thereby improving energy utilization efficiency.
[0034] In the description of this utility model, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" and their orientation or positional relationships are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0035] This utility model has been described by the above-described embodiments; however, these embodiments are merely examples for implementing this utility model. It must be noted that the disclosed embodiments do not limit the scope of this utility model. Conversely, any modifications and refinements made without departing from the spirit and scope of this utility model are within the scope of patent protection of this utility model.
Claims
1. A heat dissipation device for vitrified microspheres, characterized in that, include: The main screw conveyor includes a cylinder and a spiral auger that can rotate inside the cylinder. The cylinder has an inlet and an outlet at both ends. Vitrified microspheres are fed in through the inlet and discharged through the outlet. The cylinder body is equipped with an air-cooling section, a material-cooling section, and a water-cooling section, arranged from the inlet to the outlet. The air-cooling section cools the vitrified microspheres by exchanging heat with the airflow; The material cooling section cools the vitrified microspheres by exchanging heat with the solid raw materials; The water-cooling section cools the vitrified microspheres by exchanging heat with water.
2. The heat dissipation device for vitrified microspheres according to claim 1, characterized in that, In the air-cooling section, multiple ventilation holes are provided on the cylinder body.
3. The heat dissipation device for vitrified microspheres according to claim 2, characterized in that, A filter screen is installed on the vent, which allows air to pass through but does not allow dust and solid particles to pass through.
4. The heat dissipation device for vitrified microspheres according to claim 2, characterized in that, Some vents are used to connect to the inflation device to introduce heat exchange airflow, while other vents are used for air outflow.
5. The heat dissipation device for vitrified microspheres according to claim 1, characterized in that, In the material cooling section, a material cooling section trough is provided at the bottom of the cylinder body, and the material cooling section trough surrounds the cylinder body. A first spiral conveying module is provided on one side of the material cooling section trough for introducing solid raw materials, and a second spiral conveying module is provided on the other side of the material cooling section trough for extracting solid raw materials. Both the first spiral conveying module and the second spiral conveying module are spiral conveyors and both include a spiral auger. The spiral auger of the second spiral conveying module is surrounded by a cylinder shell.
6. The heat dissipation device for vitrified microspheres according to claim 5, characterized in that, Multiple first spiral conveying modules are provided on one side of the material cooling section trough, and multiple second spiral conveying modules are provided on the other side of the material cooling section trough.
7. The heat dissipation device for vitrified microspheres according to claim 5, characterized in that, One or more rotating paddle wheels are provided at the bottom of the material cooling section trough. The rotating paddle wheels are used to assist in the transfer of solid raw materials. The rotating paddle wheels extend along the length of the cylinder body. The power unit for driving the rotating paddle wheels is located outside the material cooling section trough.
8. The heat dissipation device for vitrified microspheres according to claim 1, characterized in that, In the water-cooling section, a water-cooling section tank is provided at the bottom of the cylinder body. The water-cooling section tank surrounds the outside of the cylinder body. The upper part of the water-cooling section tank is open, and the lower part of the water-cooling section tank is provided with a water outlet.