A horizontal drying device capable of using two mediums flexibly
By adopting a detachable jacket and a flow-guiding rib structure in the horizontal drying unit, flexible switching between steam and heat transfer oil is achieved, solving the problem of a single heat source in existing low-temperature drying units, improving heat transfer efficiency and equipment utilization, and reducing operating costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU SOTEC TECH CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-21
AI Technical Summary
Existing low-temperature drying equipment has limited processing methods, restricted application scenarios, low processing efficiency, and high operating costs.
Design a horizontal drying device that can flexibly use two media. It adopts a detachable jacket and can switch between two heat source media, steam and heat transfer oil. The inner wall of the jacket is provided with flow guiding ridges to increase the heat transfer area. Combined with a stirring component, it can ensure uniform heating of materials.
It improves heat transfer efficiency and equipment utilization, expands application scenarios, reduces operating costs, and enhances processing capacity and efficiency.
Smart Images
Figure CN224523968U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of evaporation mother liquor treatment device, specifically relating to a horizontal drying device that can flexibly use dual media. Background Technology
[0002] Currently, in the field of evaporation mother liquor treatment, low-temperature drying technology is widely used due to its advantages of being suitable for heat-sensitive materials and having high thermal efficiency. In practical applications, a steam jacket is generally used to heat the reactor wall. Because steam flows continuously during the heat transfer process, a certain amount of free space is usually reserved at the top of the reactor. This means that the contact area between the jacket and the outer wall of the reactor is generally only about 50-60% of the surface area of the outer wall of the reactor. In other words, the heat transfer area is small, and the actual volume of material processed per batch is only 50-60% of the reactor volume. It can be seen that the effective utilization rate of the equipment space is very low, resulting in a small processing capacity (the volume of liquid material processed per unit time) and low efficiency.
[0003] Furthermore, existing equipment primarily uses steam heating, but many actual application sites lack steam heat sources. This single-heat-source operation mode significantly limits the equipment's application scenarios. Moreover, when using steam heating for drying, 1m 3 Water requires approximately 0.8-1.2 tons of steam. In areas where steam is scarce, the price of steam can be as high as 200 yuan / ton or more, resulting in extremely high operating costs for the drying equipment. Utility Model Content
[0004] To address the aforementioned shortcomings of existing technologies, this utility model provides a horizontal drying device that can flexibly utilize dual media, solving the problems of limited processing methods, restricted application scenarios, low processing efficiency, and high operating costs of existing low-temperature drying devices.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A drying device that can flexibly use dual media is provided, including a reactor. The reactor is equipped with a stirring assembly inside and a detachable jacket on the outer wall of the reactor. The top of the reactor is equipped with a feed inlet and the bottom of the reactor is equipped with a slag discharge outlet. One side of the reactor is equipped with a condensate inlet, a steam inlet and a heat transfer oil inlet. The steam inlet is connected to a steam conveying unit and the heat transfer oil inlet is connected to an electrically heated heat transfer oil furnace module. The other side of the reactor is equipped with a condensate outlet, a secondary steam outlet and a secondary oil outlet.
[0006] The beneficial effects of adopting the above technical solution are as follows: As a material drying device, the reactor's internal stirring components ensure uniform heating of the material during the drying process, improving drying efficiency and effect. The jacket on the outer wall of the reactor is designed to be detachable, allowing switching between steam and thermal oil as heat source media. This avoids violent reactions and safety hazards caused by mixing steam and thermal oil. When steam heating is required, a steam jacket is installed, with its input end connected to the steam inlet and its output end connected to the secondary steam outlet. Steam is then introduced to heat and dry the material. When thermal oil heating is required, a thermal oil jacket is used, with its input end connected to the thermal oil inlet and its output end connected to the secondary oil outlet. Thermal oil is then introduced to heat and dry the material. This design allows for flexible selection of the heat source medium based on different process requirements and application scenarios: when steam heating is required, a steam jacket is installed, and steam generated by the steam delivery unit is transported into the jacket through the steam inlet to provide a heat source for the drying process. The generated secondary steam is discharged through the secondary steam outlet. When heat transfer oil heating is required, a heat transfer oil jacket is used instead. Heat transfer oil heated by the electrically heated heat transfer oil furnace module is transported into the jacket through the heat transfer oil inlet, and the generated secondary oil is discharged through the secondary oil outlet. This device separates and processes steam and heat transfer oil separately. The condensate outlet is used to discharge condensate, while the slag discharge port can be used to discharge waste residue and impurities from the reactor after the drying process.
[0007] This horizontal drying unit, which can flexibly use dual media, adopts a dual-media heating method. This not only allows for flexible selection of the heating method according to actual needs, avoiding the problems of single processing methods and limited application scenarios, but also allows for the recycling of heat transfer oil when using it. Compared with conventional steam heating methods, this can save steam costs and reduce operating costs.
[0008] Furthermore, the inner wall of the jacket is provided with several flow-guiding protrusions, which are concave rectangles, and a sealed cavity is formed between the flow-guiding protrusions and the outer wall of the reactor.
[0009] The beneficial effects of adopting the above technical solution are as follows: the closed cavity formed between the flow-guiding ridges on the inner wall of the jacket and the outer wall of the reactor provides a heat transfer channel for steam and heat transfer oil. Moreover, the flow-guiding ridges inside the jacket, compared with the straight-face jacket, can significantly increase the arc circumference of the inner wall of the jacket. Under the condition that the diameter of the reactor cross-section remains unchanged, the contact area between the inner wall of the jacket and the outer wall of the reactor is significantly increased, improving the heat transfer efficiency and heat conduction effect, which helps the material to dry faster and more uniformly. On the other hand, the mechanical strength of the jacket will be significantly increased, thus improving the service life of the jacket.
[0010] Furthermore, the stirring assembly includes a stirring shaft, on which a double-helix stirring blade is provided, and on which a scraper is provided.
[0011] The beneficial effects of adopting the above technical solution are as follows: the stirring assembly includes a stirring shaft and double helical stirring blades. The double helical stirring blades have a larger stirring area and better stirring ability, which allows the material to come into more full contact with the heat source during the drying process. The scraper can prevent the material from accumulating, ensure the smooth progress of the stirring process, improve the uniformity of the material being heated and dried, and thus improve the drying efficiency.
[0012] Furthermore, the electric heating thermal oil furnace module includes an oil storage tank, an oil pump, a thermal oil furnace, and a circulating pump; the output end of the oil storage tank is connected to the input end of the oil pump, the output end of the oil pump is connected to the input end of the thermal oil furnace, the output end of the thermal oil furnace is connected to one end of the circulating pump, the circulating pump is connected to the reactor through the thermal oil inlet, and the secondary oil outlet of the reactor is connected to the thermal oil furnace.
[0013] The beneficial effects of adopting the above technical solution are as follows: The electric heating thermal oil furnace module integrates components such as oil storage tank, oil pump, thermal oil furnace, circulation pump and reactor into a complete and efficient heating circulation system. The thermal oil in the oil storage tank is transported to the thermal oil furnace for heating by the oil pump. The heated thermal oil enters the reactor under the action of the circulation pump, and transfers heat to the material in the reactor for drying. The dried thermal oil is returned to the thermal oil furnace for secondary heating, forming a cycle and reducing operating costs.
[0014] Furthermore, a steam inlet valve is installed on the steam inlet, and a heat transfer oil inlet valve is installed on the heat transfer oil inlet.
[0015] The beneficial effects of adopting the above technical solution are as follows: the steam inlet valve and the heat transfer oil inlet valve control the opening and closing of the steam inlet and the heat transfer oil inlet respectively, which makes it convenient for operators to flexibly select the heat source medium according to the actual situation, greatly improving the applicability and economic benefits of the device. At the same time, it can effectively prevent the two media from mixing in the pipeline, ensuring safety and reliability.
[0016] Furthermore, the thickness of the jacket is 5-8mm.
[0017] The beneficial effects of adopting the above technical solution are: the jacket thickness is only 5-8mm, the heat conduction path is shortened, the thermal resistance is reduced, the heat conduction efficiency is improved, and the amount of raw materials used in the jacket is reduced, thus reducing investment costs.
[0018] Furthermore, the jacket and the guide ridge are made of one of the following materials: aluminum alloy, stainless steel or titanium.
[0019] The beneficial effects of adopting the above technical solution are as follows: the jacket and the guide rib are made of aluminum alloy, stainless steel or titanium metal, which have high mechanical strength and good durability. Compared with traditional materials such as iron and aluminum, they can withstand greater pressure and temperature changes and are not easily deformed or damaged, thereby significantly improving the mechanical strength of the jacket and the guide rib and extending the service life of the device.
[0020] Furthermore, the jacket is connected to the reactor by bolts.
[0021] The beneficial effects of adopting the above technical solution are as follows: the jacket and the reactor are connected by bolts, which allows the jacket to be disassembled and replaced according to actual needs. When steam heating is required, a steam jacket can be quickly installed. When heat transfer oil heating is required, a heat transfer oil jacket can be quickly replaced. This avoids the violent reaction and safety hazards caused by the mixing of steam and heat transfer oil when using the same jacket. At the same time, the heat source medium can be flexibly selected according to different process requirements and different usage scenarios.
[0022] Furthermore, the steam inlet and the heat transfer oil inlet are separated by a partition.
[0023] In summary, the horizontal drying device with flexible use of dual media provided by this utility model has the following advantages: (1) Existing drying equipment has a large "idle space" and low utilization rate. The inner wall of the jacket in this device adopts a convex rib structure, which not only increases the mechanical strength of the jacket, but also extends the arc length of the inner wall of the jacket. Under the condition that the diameter of the reactor cross section is the same, the contact area between the jacket and the reactor is increased, that is, the heat transfer area is increased, which can greatly improve the heat transfer, and thus increase the amount of material to be processed in each batch. The actual amount of material processed in each batch can reach more than 90% of the reactor volume, which can greatly improve the processing capacity and efficiency of the device. Under the same time conditions, the processing capacity is increased by more than 30%.
[0024] (2) This device adopts a dual-medium heating design. Depending on the actual usage environment, it can flexibly select steam and heat transfer oil as the two heat source media, which is not limited by the on-site environment conditions, thus expanding the scope of application of the device and making it highly flexible.
[0025] (3) The jacket of this device is connected to the reactor by bolts and can be flexibly disassembled. According to actual needs, when steam is needed, the steam jacket can be quickly installed on the reactor, the heat transfer oil inlet valve is closed, the steam inlet valve is opened, and steam can be introduced for steam heating; when heat transfer oil is needed, the heat transfer oil jacket can be quickly installed on the reactor, the steam inlet valve is closed, the heat transfer oil inlet valve is opened, and heat transfer oil can be introduced for heat transfer oil heating. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the drying device in this utility model; Figure 2 This is a side view of the drying equipment in this utility model; Figure 3 This is a top view of the jacket in this utility model; Figure 4 This is a schematic diagram showing the connection between the dual heat source medium and the reactor in this utility model; The components are as follows: 1. Reactor; 2. Feed inlet; 3. Slag outlet; 4. Steam inlet; 5. Thermal oil inlet; 6. Secondary oil outlet; 7. Stirring shaft; 8. Double helical stirring blades; 9. Scraper; 10. Jacket; 11. Guide ribs; 12. Secondary steam outlet; 13. Condensate outlet; 14. Oil storage tank; 15. Oil pump; 16. Thermal oil furnace; 17. Circulation pump; 18. Steam delivery unit; 19. Steam inlet valve; 20. Thermal oil inlet valve; 21. Cavity. Detailed Implementation
[0027] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.
[0028] like Figures 1-4 As shown, the horizontal drying device with flexible use of dual media provided by this utility model includes a reactor 1, which is connected to a vacuum device. A stirring assembly is installed inside the reactor 1, and a detachable jacket 10 is installed on the outer wall of the reactor 1. A feed inlet 2 is provided at the top of the reactor 1, and a slag discharge outlet 3 is provided at the bottom of the reactor 1. A condensate inlet, a steam inlet 4, and a heat transfer oil inlet 5 are provided on one side of the reactor 1. The steam inlet 4 is connected to a steam conveying unit 18, and the heat transfer oil inlet 5 is connected to an electrically heated heat transfer oil furnace module. The steam inlet 4 and the heat transfer oil inlet 5 are separated by a partition. A condensate outlet 13, a secondary steam outlet 12, and a secondary oil outlet 6 are provided on the other side of the reactor 1.
[0029] In operation, the material to be dried and the condensate enter the reactor 1 through the feed inlet 2 and the condensate inlet, respectively. The reactor 1 serves as the drying space for the material, and its internal stirring components ensure uniform heating during the drying process, improving drying efficiency and effectiveness. The jacket 10, located on the outer wall of the reactor 1, employs a convex-ribbed thin-walled structure, significantly increasing the contact area between the inner wall of the jacket 10 and the outer wall of the reactor 1, thus improving heat transfer and thermal conductivity, and facilitating faster and more uniform drying of the material. Simultaneously, the jacket 10 is connected to the reactor 1 using bolts and other fasteners, allowing for easy disassembly and switching between steam and thermal oil as the heat source. When steam heating is required, the steam jacket 10 is installed, allowing the steam jacket 10 to... The input end of the steam jacket 10 is connected to the steam inlet 4, and the output end of the steam jacket 10 is connected to the secondary steam outlet 12. The steam generated by the steam conveying unit 18 is conveyed into the jacket 10 through the steam inlet 4. The material can be heated and dried by introducing steam, and the generated secondary steam is discharged through the secondary steam outlet 12. When heat transfer oil heating is required, the jacket 10 is replaced with a heat transfer oil jacket. The input end of the heat transfer oil jacket 10 is connected to the heat transfer oil inlet 5, and the output end of the heat transfer oil jacket 10 is connected to the secondary oil outlet 6. The heat transfer oil heated by the electric heating heat transfer oil furnace module is conveyed into the jacket 10 through the heat transfer oil inlet 5. The material can be heated and dried by the heat transfer oil, and the generated secondary oil is discharged through the secondary oil outlet 6. This design allows for flexible selection of the heat source medium based on different process requirements and application scenarios. The steam inlet 4 delivers the steam generated by the steam delivery unit 18 into the jacket 10 to provide a heat source for the drying process. The heat transfer oil inlet 5 delivers the heat transfer oil heated by the electric heating heat transfer oil furnace 16 module into the jacket 10. After drying is completed, the condensate outlet 13 is used to discharge the condensate, while the slag outlet 3 can be used to discharge waste residue and impurities from the reactor 1 after the drying process is completed.
[0030] like Figure 1 As shown, a steam inlet valve 19 is installed on the steam inlet 4, and a heat transfer oil inlet valve 20 is installed on the heat transfer oil inlet 5. The steam inlet valve 19 and the heat transfer oil inlet valve 20 allow operators to flexibly switch the heat source medium according to actual conditions. When steam is needed, the steam jacket 10 can be quickly installed onto the reactor 1, the heat transfer oil inlet valve 20 can be closed, and the steam inlet valve 19 can be opened to allow steam heating. When heat transfer oil is needed, the heat transfer oil jacket 10 can be quickly installed onto the reactor 1, the steam inlet valve 19 can be closed, the heat transfer oil inlet valve 20 can be opened, and the temperature can be raised to between 120-200℃ by electrical heating, allowing for heat transfer oil heating. This flexible selection greatly improves the applicability and economy of the equipment.
[0031] like Figure 1 , Figure 2 and Figure 3As shown, the inner wall of the jacket 10 is provided with several flow-guiding protrusions 11. The flow-guiding protrusions 11 have a concave rectangular structure, and a closed cavity 21 is formed between the flow-guiding protrusions 11 and the outer wall of the reactor 1. The closed cavity 21 formed between the concave rectangular flow-guiding protrusions 11 on the inner wall of the jacket 10 and the outer wall of the reactor 1 provides a conveying channel for steam and heat transfer oil. Moreover, the flow-guiding protrusions 11 inside the jacket 10, compared with the straight-face jacket 10, can significantly increase the arc circumference of the inner wall of the jacket 10. Under the condition that the diameter of the cross-section of the reactor 1 remains unchanged, the contact area between the inner wall of the jacket 10 and the outer wall of the reactor 1 is significantly increased, improving the heat transfer efficiency and heat conduction effect, which helps the material to dry faster and more uniformly. On the other hand, the mechanical strength of the jacket 10 is significantly increased, thereby improving the service life of the jacket 10.
[0032] In this invention, the thickness of the jacket 10 is 5-8mm. The jacket 10 and the guide rib 11 are made of aluminum alloy, stainless steel or titanium. Under the condition of ensuring mechanical strength, the thickness of the jacket 10 can be reduced to 5-8mm. Compared with the traditional jacket 10, the thickness needs to reach 10-15mm to ensure mechanical strength. The heat conduction path is shortened, the thermal resistance is reduced, the heat conduction efficiency is improved, the raw material consumption of the jacket 10 is reduced, the investment cost is reduced, and the service life of the device is guaranteed.
[0033] like Figure 1 As shown, the mixing assembly includes a mixing shaft 7, on which a double-helix mixing blade 8 is mounted, and on which a scraper 9 is mounted. The mixing assembly includes the mixing shaft 7 and the double-helix mixing blade 8. The double-helix mixing blade 8 has a larger mixing area and better mixing capacity, allowing the material to have more sufficient contact with the heat source during the drying process. The scraper 9 prevents material accumulation, ensuring the smooth progress of the mixing process and improving the uniformity of material heating and drying, thereby increasing drying efficiency.
[0034] like Figure 4As shown, the electric heating thermal oil furnace module includes an oil storage tank 14, an oil pump 15, a thermal oil furnace 16, and a circulating pump 17. The output end of the oil storage tank 14 is connected to the input end of the oil pump 15, the output end of the oil pump 15 is connected to the input end of the thermal oil furnace 16, the output end of the thermal oil furnace 16 is connected to one end of the circulating pump 17, the circulating pump 17 is connected to the reactor 1 through the thermal oil inlet 5, and the secondary oil outlet 6 of the reactor 1 is connected to the thermal oil furnace 16. In use, the electric heating thermal oil furnace 16 module integrates components such as the oil storage tank 14, oil pump 15, thermal oil furnace 16, circulation pump 17, and reactor 1 to form a complete and efficient heating circulation system. The thermal oil in the oil storage tank 14 is transported to the thermal oil furnace 16 for heating by the oil pump 15. The heated thermal oil enters the reactor 1 under the action of the circulation pump 17, where it transfers heat to the material in the reactor 1 for drying. The dried thermal oil is returned to the thermal oil furnace 16 for secondary heating, forming a cycle and reducing operating costs.
[0035] In summary, the horizontal drying device with flexible dual-medium heating provided by this utility model not only reduces the amount of raw materials used and lowers costs by adopting a thin-walled convex rib structure and a dual-medium heating method, but also allows for flexible selection of heating methods based on actual conditions, reducing operating costs and significantly improving heat transfer, thereby enhancing the processing capacity and efficiency of the drying device.
Claims
1. A horizontal drying device that can flexibly use dual media, characterized in that: The reactor (1) includes a stirring assembly inside the reactor (1), a detachable jacket (10) on the outer wall of the reactor (1), a feed inlet (2) at the top of the reactor (1), and a slag discharge outlet (3) at the bottom of the reactor (1). A condensate inlet, a steam inlet (4) and a heat transfer oil inlet (5) are provided on one side of the reactor (1). The steam inlet (4) is connected to a steam conveying unit (18), and the heat transfer oil inlet (5) is connected to an electric heating heat transfer oil furnace module. A condensate outlet (13), a secondary steam outlet (12) and a secondary oil outlet (6) are provided on the other side of the reactor (1).
2. The horizontal drying device capable of flexibly using dual media according to claim 1, characterized in that: The inner wall of the jacket (10) is provided with a plurality of flow guiding protrusions (11), the flow guiding protrusions (11) are concave rectangles, and a closed cavity (21) is formed between the flow guiding protrusions (11) and the outer wall of the reactor (1).
3. The horizontal drying device capable of flexibly using dual media according to claim 1, characterized in that: The stirring assembly includes a stirring shaft (7), on which a double helical stirring blade (8) is provided, and on which a scraper (9) is provided.
4. The horizontal drying device capable of flexibly using dual media according to claim 1, characterized in that: The electric heating thermal oil furnace module includes an oil storage tank (14), an oil pump (15), a thermal oil furnace (16), and a circulation pump (17). The output end of the oil storage tank (14) is connected to the input end of the oil pump (15), the output end of the oil pump (15) is connected to the input end of the thermal oil furnace (16), the output end of the thermal oil furnace (16) is connected to one end of the circulation pump (17), the circulation pump (17) is connected to the reactor (1) through the thermal oil inlet (5), and the secondary oil outlet (6) of the reactor (1) is connected to the thermal oil furnace (16).
5. The horizontal drying device capable of flexibly using dual media according to claim 1, characterized in that: A steam inlet valve (19) is provided on the steam inlet (4), and a heat transfer oil inlet valve (20) is provided on the heat transfer oil inlet (5).
6. The horizontal drying device capable of flexibly using dual media according to claim 2, characterized in that: The thickness of the jacket (10) is 5-8 mm.
7. The horizontal drying device capable of flexibly using dual media according to claim 6, characterized in that: The jacket (10) and the guide ridge (11) are made of aluminum alloy, stainless steel or titanium.
8. The horizontal drying device capable of flexibly using dual media according to claim 7, characterized in that: The jacket (10) is bolted to the reactor (1).
9. The horizontal drying device capable of flexibly using dual media according to claim 1, characterized in that: The steam inlet (4) and the heat transfer oil inlet (5) are separated by a partition.